3aba072cef
The global data is mostly only used at initialization, or for easy access to values we could compute statically. Instead of consuming that space (and risking TLB misses), we can just pass around a pointer to stack data during bootstrapping.
887 lines
28 KiB
C
887 lines
28 KiB
C
#include "test/jemalloc_test.h"
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#include "jemalloc/internal/hook.h"
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#include "jemalloc/internal/util.h"
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TEST_BEGIN(test_mallctl_errors) {
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uint64_t epoch;
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size_t sz;
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assert_d_eq(mallctl("no_such_name", NULL, NULL, NULL, 0), ENOENT,
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"mallctl() should return ENOENT for non-existent names");
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assert_d_eq(mallctl("version", NULL, NULL, "0.0.0", strlen("0.0.0")),
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EPERM, "mallctl() should return EPERM on attempt to write "
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"read-only value");
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assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch,
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sizeof(epoch)-1), EINVAL,
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"mallctl() should return EINVAL for input size mismatch");
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assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&epoch,
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sizeof(epoch)+1), EINVAL,
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"mallctl() should return EINVAL for input size mismatch");
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sz = sizeof(epoch)-1;
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assert_d_eq(mallctl("epoch", (void *)&epoch, &sz, NULL, 0), EINVAL,
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"mallctl() should return EINVAL for output size mismatch");
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sz = sizeof(epoch)+1;
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assert_d_eq(mallctl("epoch", (void *)&epoch, &sz, NULL, 0), EINVAL,
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"mallctl() should return EINVAL for output size mismatch");
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}
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TEST_END
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TEST_BEGIN(test_mallctlnametomib_errors) {
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size_t mib[1];
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size_t miblen;
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miblen = sizeof(mib)/sizeof(size_t);
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assert_d_eq(mallctlnametomib("no_such_name", mib, &miblen), ENOENT,
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"mallctlnametomib() should return ENOENT for non-existent names");
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}
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TEST_END
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TEST_BEGIN(test_mallctlbymib_errors) {
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uint64_t epoch;
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size_t sz;
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size_t mib[1];
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size_t miblen;
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miblen = sizeof(mib)/sizeof(size_t);
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assert_d_eq(mallctlnametomib("version", mib, &miblen), 0,
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"Unexpected mallctlnametomib() failure");
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assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, "0.0.0",
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strlen("0.0.0")), EPERM, "mallctl() should return EPERM on "
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"attempt to write read-only value");
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miblen = sizeof(mib)/sizeof(size_t);
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assert_d_eq(mallctlnametomib("epoch", mib, &miblen), 0,
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"Unexpected mallctlnametomib() failure");
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assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, (void *)&epoch,
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sizeof(epoch)-1), EINVAL,
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"mallctlbymib() should return EINVAL for input size mismatch");
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assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, (void *)&epoch,
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sizeof(epoch)+1), EINVAL,
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"mallctlbymib() should return EINVAL for input size mismatch");
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sz = sizeof(epoch)-1;
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assert_d_eq(mallctlbymib(mib, miblen, (void *)&epoch, &sz, NULL, 0),
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EINVAL,
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"mallctlbymib() should return EINVAL for output size mismatch");
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sz = sizeof(epoch)+1;
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assert_d_eq(mallctlbymib(mib, miblen, (void *)&epoch, &sz, NULL, 0),
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EINVAL,
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"mallctlbymib() should return EINVAL for output size mismatch");
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}
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TEST_END
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TEST_BEGIN(test_mallctl_read_write) {
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uint64_t old_epoch, new_epoch;
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size_t sz = sizeof(old_epoch);
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/* Blind. */
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assert_d_eq(mallctl("epoch", NULL, NULL, NULL, 0), 0,
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"Unexpected mallctl() failure");
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assert_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");
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/* Read. */
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assert_d_eq(mallctl("epoch", (void *)&old_epoch, &sz, NULL, 0), 0,
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"Unexpected mallctl() failure");
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assert_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");
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/* Write. */
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assert_d_eq(mallctl("epoch", NULL, NULL, (void *)&new_epoch,
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sizeof(new_epoch)), 0, "Unexpected mallctl() failure");
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assert_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");
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/* Read+write. */
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assert_d_eq(mallctl("epoch", (void *)&old_epoch, &sz,
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(void *)&new_epoch, sizeof(new_epoch)), 0,
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"Unexpected mallctl() failure");
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assert_zu_eq(sz, sizeof(old_epoch), "Unexpected output size");
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}
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TEST_END
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TEST_BEGIN(test_mallctlnametomib_short_mib) {
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size_t mib[4];
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size_t miblen;
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miblen = 3;
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mib[3] = 42;
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assert_d_eq(mallctlnametomib("arenas.bin.0.nregs", mib, &miblen), 0,
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"Unexpected mallctlnametomib() failure");
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assert_zu_eq(miblen, 3, "Unexpected mib output length");
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assert_zu_eq(mib[3], 42,
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"mallctlnametomib() wrote past the end of the input mib");
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}
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TEST_END
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TEST_BEGIN(test_mallctl_config) {
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#define TEST_MALLCTL_CONFIG(config, t) do { \
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t oldval; \
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size_t sz = sizeof(oldval); \
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assert_d_eq(mallctl("config."#config, (void *)&oldval, &sz, \
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NULL, 0), 0, "Unexpected mallctl() failure"); \
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assert_b_eq(oldval, config_##config, "Incorrect config value"); \
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assert_zu_eq(sz, sizeof(oldval), "Unexpected output size"); \
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} while (0)
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TEST_MALLCTL_CONFIG(cache_oblivious, bool);
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TEST_MALLCTL_CONFIG(debug, bool);
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TEST_MALLCTL_CONFIG(fill, bool);
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TEST_MALLCTL_CONFIG(lazy_lock, bool);
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TEST_MALLCTL_CONFIG(malloc_conf, const char *);
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TEST_MALLCTL_CONFIG(prof, bool);
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TEST_MALLCTL_CONFIG(prof_libgcc, bool);
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TEST_MALLCTL_CONFIG(prof_libunwind, bool);
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TEST_MALLCTL_CONFIG(stats, bool);
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TEST_MALLCTL_CONFIG(utrace, bool);
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TEST_MALLCTL_CONFIG(xmalloc, bool);
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#undef TEST_MALLCTL_CONFIG
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}
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TEST_END
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TEST_BEGIN(test_mallctl_opt) {
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bool config_always = true;
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#define TEST_MALLCTL_OPT(t, opt, config) do { \
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t oldval; \
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size_t sz = sizeof(oldval); \
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int expected = config_##config ? 0 : ENOENT; \
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int result = mallctl("opt."#opt, (void *)&oldval, &sz, NULL, \
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0); \
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assert_d_eq(result, expected, \
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"Unexpected mallctl() result for opt."#opt); \
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assert_zu_eq(sz, sizeof(oldval), "Unexpected output size"); \
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} while (0)
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TEST_MALLCTL_OPT(bool, abort, always);
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TEST_MALLCTL_OPT(bool, abort_conf, always);
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TEST_MALLCTL_OPT(const char *, metadata_thp, always);
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TEST_MALLCTL_OPT(bool, retain, always);
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TEST_MALLCTL_OPT(const char *, dss, always);
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TEST_MALLCTL_OPT(unsigned, narenas, always);
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TEST_MALLCTL_OPT(const char *, percpu_arena, always);
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TEST_MALLCTL_OPT(size_t, experimental_huge_threshold, always);
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TEST_MALLCTL_OPT(bool, background_thread, always);
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TEST_MALLCTL_OPT(ssize_t, dirty_decay_ms, always);
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TEST_MALLCTL_OPT(ssize_t, muzzy_decay_ms, always);
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TEST_MALLCTL_OPT(bool, stats_print, always);
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TEST_MALLCTL_OPT(const char *, junk, fill);
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TEST_MALLCTL_OPT(bool, zero, fill);
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TEST_MALLCTL_OPT(bool, utrace, utrace);
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TEST_MALLCTL_OPT(bool, xmalloc, xmalloc);
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TEST_MALLCTL_OPT(bool, tcache, always);
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TEST_MALLCTL_OPT(size_t, lg_extent_max_active_fit, always);
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TEST_MALLCTL_OPT(size_t, lg_tcache_max, always);
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TEST_MALLCTL_OPT(const char *, thp, always);
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TEST_MALLCTL_OPT(bool, prof, prof);
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TEST_MALLCTL_OPT(const char *, prof_prefix, prof);
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TEST_MALLCTL_OPT(bool, prof_active, prof);
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TEST_MALLCTL_OPT(ssize_t, lg_prof_sample, prof);
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TEST_MALLCTL_OPT(bool, prof_accum, prof);
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TEST_MALLCTL_OPT(ssize_t, lg_prof_interval, prof);
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TEST_MALLCTL_OPT(bool, prof_gdump, prof);
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TEST_MALLCTL_OPT(bool, prof_final, prof);
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TEST_MALLCTL_OPT(bool, prof_leak, prof);
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#undef TEST_MALLCTL_OPT
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}
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TEST_END
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TEST_BEGIN(test_manpage_example) {
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unsigned nbins, i;
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size_t mib[4];
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size_t len, miblen;
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len = sizeof(nbins);
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assert_d_eq(mallctl("arenas.nbins", (void *)&nbins, &len, NULL, 0), 0,
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"Unexpected mallctl() failure");
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miblen = 4;
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assert_d_eq(mallctlnametomib("arenas.bin.0.size", mib, &miblen), 0,
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"Unexpected mallctlnametomib() failure");
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for (i = 0; i < nbins; i++) {
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size_t bin_size;
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mib[2] = i;
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len = sizeof(bin_size);
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assert_d_eq(mallctlbymib(mib, miblen, (void *)&bin_size, &len,
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NULL, 0), 0, "Unexpected mallctlbymib() failure");
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/* Do something with bin_size... */
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}
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}
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TEST_END
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TEST_BEGIN(test_tcache_none) {
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test_skip_if(!opt_tcache);
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/* Allocate p and q. */
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void *p0 = mallocx(42, 0);
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assert_ptr_not_null(p0, "Unexpected mallocx() failure");
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void *q = mallocx(42, 0);
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assert_ptr_not_null(q, "Unexpected mallocx() failure");
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/* Deallocate p and q, but bypass the tcache for q. */
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dallocx(p0, 0);
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dallocx(q, MALLOCX_TCACHE_NONE);
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/* Make sure that tcache-based allocation returns p, not q. */
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void *p1 = mallocx(42, 0);
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assert_ptr_not_null(p1, "Unexpected mallocx() failure");
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assert_ptr_eq(p0, p1, "Expected tcache to allocate cached region");
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/* Clean up. */
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dallocx(p1, MALLOCX_TCACHE_NONE);
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}
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TEST_END
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TEST_BEGIN(test_tcache) {
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#define NTCACHES 10
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unsigned tis[NTCACHES];
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void *ps[NTCACHES];
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void *qs[NTCACHES];
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unsigned i;
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size_t sz, psz, qsz;
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psz = 42;
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qsz = nallocx(psz, 0) + 1;
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/* Create tcaches. */
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for (i = 0; i < NTCACHES; i++) {
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sz = sizeof(unsigned);
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assert_d_eq(mallctl("tcache.create", (void *)&tis[i], &sz, NULL,
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0), 0, "Unexpected mallctl() failure, i=%u", i);
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}
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/* Exercise tcache ID recycling. */
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for (i = 0; i < NTCACHES; i++) {
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assert_d_eq(mallctl("tcache.destroy", NULL, NULL,
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(void *)&tis[i], sizeof(unsigned)), 0,
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"Unexpected mallctl() failure, i=%u", i);
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}
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for (i = 0; i < NTCACHES; i++) {
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sz = sizeof(unsigned);
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assert_d_eq(mallctl("tcache.create", (void *)&tis[i], &sz, NULL,
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0), 0, "Unexpected mallctl() failure, i=%u", i);
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}
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/* Flush empty tcaches. */
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for (i = 0; i < NTCACHES; i++) {
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assert_d_eq(mallctl("tcache.flush", NULL, NULL, (void *)&tis[i],
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sizeof(unsigned)), 0, "Unexpected mallctl() failure, i=%u",
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i);
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}
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/* Cache some allocations. */
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for (i = 0; i < NTCACHES; i++) {
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ps[i] = mallocx(psz, MALLOCX_TCACHE(tis[i]));
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assert_ptr_not_null(ps[i], "Unexpected mallocx() failure, i=%u",
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i);
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dallocx(ps[i], MALLOCX_TCACHE(tis[i]));
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qs[i] = mallocx(qsz, MALLOCX_TCACHE(tis[i]));
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assert_ptr_not_null(qs[i], "Unexpected mallocx() failure, i=%u",
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i);
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dallocx(qs[i], MALLOCX_TCACHE(tis[i]));
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}
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/* Verify that tcaches allocate cached regions. */
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for (i = 0; i < NTCACHES; i++) {
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void *p0 = ps[i];
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ps[i] = mallocx(psz, MALLOCX_TCACHE(tis[i]));
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assert_ptr_not_null(ps[i], "Unexpected mallocx() failure, i=%u",
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i);
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assert_ptr_eq(ps[i], p0,
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"Expected mallocx() to allocate cached region, i=%u", i);
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}
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/* Verify that reallocation uses cached regions. */
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for (i = 0; i < NTCACHES; i++) {
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void *q0 = qs[i];
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qs[i] = rallocx(ps[i], qsz, MALLOCX_TCACHE(tis[i]));
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assert_ptr_not_null(qs[i], "Unexpected rallocx() failure, i=%u",
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i);
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assert_ptr_eq(qs[i], q0,
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"Expected rallocx() to allocate cached region, i=%u", i);
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/* Avoid undefined behavior in case of test failure. */
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if (qs[i] == NULL) {
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qs[i] = ps[i];
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}
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}
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for (i = 0; i < NTCACHES; i++) {
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dallocx(qs[i], MALLOCX_TCACHE(tis[i]));
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}
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/* Flush some non-empty tcaches. */
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for (i = 0; i < NTCACHES/2; i++) {
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assert_d_eq(mallctl("tcache.flush", NULL, NULL, (void *)&tis[i],
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sizeof(unsigned)), 0, "Unexpected mallctl() failure, i=%u",
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i);
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}
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/* Destroy tcaches. */
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for (i = 0; i < NTCACHES; i++) {
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assert_d_eq(mallctl("tcache.destroy", NULL, NULL,
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(void *)&tis[i], sizeof(unsigned)), 0,
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"Unexpected mallctl() failure, i=%u", i);
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}
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}
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TEST_END
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TEST_BEGIN(test_thread_arena) {
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unsigned old_arena_ind, new_arena_ind, narenas;
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const char *opa;
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size_t sz = sizeof(opa);
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assert_d_eq(mallctl("opt.percpu_arena", (void *)&opa, &sz, NULL, 0), 0,
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"Unexpected mallctl() failure");
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sz = sizeof(unsigned);
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assert_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
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0, "Unexpected mallctl() failure");
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if (opt_huge_threshold != 0) {
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narenas--;
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}
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assert_u_eq(narenas, opt_narenas, "Number of arenas incorrect");
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if (strcmp(opa, "disabled") == 0) {
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new_arena_ind = narenas - 1;
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assert_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
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(void *)&new_arena_ind, sizeof(unsigned)), 0,
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"Unexpected mallctl() failure");
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new_arena_ind = 0;
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assert_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
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(void *)&new_arena_ind, sizeof(unsigned)), 0,
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"Unexpected mallctl() failure");
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} else {
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assert_d_eq(mallctl("thread.arena", (void *)&old_arena_ind, &sz,
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NULL, 0), 0, "Unexpected mallctl() failure");
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new_arena_ind = percpu_arena_ind_limit(opt_percpu_arena) - 1;
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if (old_arena_ind != new_arena_ind) {
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assert_d_eq(mallctl("thread.arena",
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(void *)&old_arena_ind, &sz, (void *)&new_arena_ind,
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sizeof(unsigned)), EPERM, "thread.arena ctl "
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"should not be allowed with percpu arena");
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}
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}
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}
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TEST_END
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TEST_BEGIN(test_arena_i_initialized) {
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unsigned narenas, i;
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size_t sz;
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size_t mib[3];
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size_t miblen = sizeof(mib) / sizeof(size_t);
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bool initialized;
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sz = sizeof(narenas);
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assert_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
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0, "Unexpected mallctl() failure");
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assert_d_eq(mallctlnametomib("arena.0.initialized", mib, &miblen), 0,
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"Unexpected mallctlnametomib() failure");
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for (i = 0; i < narenas; i++) {
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mib[1] = i;
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sz = sizeof(initialized);
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assert_d_eq(mallctlbymib(mib, miblen, &initialized, &sz, NULL,
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0), 0, "Unexpected mallctl() failure");
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}
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mib[1] = MALLCTL_ARENAS_ALL;
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sz = sizeof(initialized);
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assert_d_eq(mallctlbymib(mib, miblen, &initialized, &sz, NULL, 0), 0,
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"Unexpected mallctl() failure");
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assert_true(initialized,
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"Merged arena statistics should always be initialized");
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/* Equivalent to the above but using mallctl() directly. */
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sz = sizeof(initialized);
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assert_d_eq(mallctl(
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"arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".initialized",
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(void *)&initialized, &sz, NULL, 0), 0,
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"Unexpected mallctl() failure");
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assert_true(initialized,
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"Merged arena statistics should always be initialized");
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}
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TEST_END
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TEST_BEGIN(test_arena_i_dirty_decay_ms) {
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ssize_t dirty_decay_ms, orig_dirty_decay_ms, prev_dirty_decay_ms;
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size_t sz = sizeof(ssize_t);
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assert_d_eq(mallctl("arena.0.dirty_decay_ms",
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(void *)&orig_dirty_decay_ms, &sz, NULL, 0), 0,
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"Unexpected mallctl() failure");
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dirty_decay_ms = -2;
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assert_d_eq(mallctl("arena.0.dirty_decay_ms", NULL, NULL,
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(void *)&dirty_decay_ms, sizeof(ssize_t)), EFAULT,
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"Unexpected mallctl() success");
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dirty_decay_ms = 0x7fffffff;
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assert_d_eq(mallctl("arena.0.dirty_decay_ms", NULL, NULL,
|
|
(void *)&dirty_decay_ms, sizeof(ssize_t)), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
for (prev_dirty_decay_ms = dirty_decay_ms, dirty_decay_ms = -1;
|
|
dirty_decay_ms < 20; prev_dirty_decay_ms = dirty_decay_ms,
|
|
dirty_decay_ms++) {
|
|
ssize_t old_dirty_decay_ms;
|
|
|
|
assert_d_eq(mallctl("arena.0.dirty_decay_ms",
|
|
(void *)&old_dirty_decay_ms, &sz, (void *)&dirty_decay_ms,
|
|
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
|
|
assert_zd_eq(old_dirty_decay_ms, prev_dirty_decay_ms,
|
|
"Unexpected old arena.0.dirty_decay_ms");
|
|
}
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arena_i_muzzy_decay_ms) {
|
|
ssize_t muzzy_decay_ms, orig_muzzy_decay_ms, prev_muzzy_decay_ms;
|
|
size_t sz = sizeof(ssize_t);
|
|
|
|
assert_d_eq(mallctl("arena.0.muzzy_decay_ms",
|
|
(void *)&orig_muzzy_decay_ms, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
muzzy_decay_ms = -2;
|
|
assert_d_eq(mallctl("arena.0.muzzy_decay_ms", NULL, NULL,
|
|
(void *)&muzzy_decay_ms, sizeof(ssize_t)), EFAULT,
|
|
"Unexpected mallctl() success");
|
|
|
|
muzzy_decay_ms = 0x7fffffff;
|
|
assert_d_eq(mallctl("arena.0.muzzy_decay_ms", NULL, NULL,
|
|
(void *)&muzzy_decay_ms, sizeof(ssize_t)), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
for (prev_muzzy_decay_ms = muzzy_decay_ms, muzzy_decay_ms = -1;
|
|
muzzy_decay_ms < 20; prev_muzzy_decay_ms = muzzy_decay_ms,
|
|
muzzy_decay_ms++) {
|
|
ssize_t old_muzzy_decay_ms;
|
|
|
|
assert_d_eq(mallctl("arena.0.muzzy_decay_ms",
|
|
(void *)&old_muzzy_decay_ms, &sz, (void *)&muzzy_decay_ms,
|
|
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
|
|
assert_zd_eq(old_muzzy_decay_ms, prev_muzzy_decay_ms,
|
|
"Unexpected old arena.0.muzzy_decay_ms");
|
|
}
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arena_i_purge) {
|
|
unsigned narenas;
|
|
size_t sz = sizeof(unsigned);
|
|
size_t mib[3];
|
|
size_t miblen = 3;
|
|
|
|
assert_d_eq(mallctl("arena.0.purge", NULL, NULL, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
assert_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
|
|
0, "Unexpected mallctl() failure");
|
|
assert_d_eq(mallctlnametomib("arena.0.purge", mib, &miblen), 0,
|
|
"Unexpected mallctlnametomib() failure");
|
|
mib[1] = narenas;
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
|
|
"Unexpected mallctlbymib() failure");
|
|
|
|
mib[1] = MALLCTL_ARENAS_ALL;
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
|
|
"Unexpected mallctlbymib() failure");
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arena_i_decay) {
|
|
unsigned narenas;
|
|
size_t sz = sizeof(unsigned);
|
|
size_t mib[3];
|
|
size_t miblen = 3;
|
|
|
|
assert_d_eq(mallctl("arena.0.decay", NULL, NULL, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
assert_d_eq(mallctl("arenas.narenas", (void *)&narenas, &sz, NULL, 0),
|
|
0, "Unexpected mallctl() failure");
|
|
assert_d_eq(mallctlnametomib("arena.0.decay", mib, &miblen), 0,
|
|
"Unexpected mallctlnametomib() failure");
|
|
mib[1] = narenas;
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
|
|
"Unexpected mallctlbymib() failure");
|
|
|
|
mib[1] = MALLCTL_ARENAS_ALL;
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, NULL, 0), 0,
|
|
"Unexpected mallctlbymib() failure");
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arena_i_dss) {
|
|
const char *dss_prec_old, *dss_prec_new;
|
|
size_t sz = sizeof(dss_prec_old);
|
|
size_t mib[3];
|
|
size_t miblen;
|
|
|
|
miblen = sizeof(mib)/sizeof(size_t);
|
|
assert_d_eq(mallctlnametomib("arena.0.dss", mib, &miblen), 0,
|
|
"Unexpected mallctlnametomib() error");
|
|
|
|
dss_prec_new = "disabled";
|
|
assert_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz,
|
|
(void *)&dss_prec_new, sizeof(dss_prec_new)), 0,
|
|
"Unexpected mallctl() failure");
|
|
assert_str_ne(dss_prec_old, "primary",
|
|
"Unexpected default for dss precedence");
|
|
|
|
assert_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_new, &sz,
|
|
(void *)&dss_prec_old, sizeof(dss_prec_old)), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
assert_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz, NULL,
|
|
0), 0, "Unexpected mallctl() failure");
|
|
assert_str_ne(dss_prec_old, "primary",
|
|
"Unexpected value for dss precedence");
|
|
|
|
mib[1] = narenas_total_get();
|
|
dss_prec_new = "disabled";
|
|
assert_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz,
|
|
(void *)&dss_prec_new, sizeof(dss_prec_new)), 0,
|
|
"Unexpected mallctl() failure");
|
|
assert_str_ne(dss_prec_old, "primary",
|
|
"Unexpected default for dss precedence");
|
|
|
|
assert_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_new, &sz,
|
|
(void *)&dss_prec_old, sizeof(dss_prec_new)), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
assert_d_eq(mallctlbymib(mib, miblen, (void *)&dss_prec_old, &sz, NULL,
|
|
0), 0, "Unexpected mallctl() failure");
|
|
assert_str_ne(dss_prec_old, "primary",
|
|
"Unexpected value for dss precedence");
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arena_i_retain_grow_limit) {
|
|
size_t old_limit, new_limit, default_limit;
|
|
size_t mib[3];
|
|
size_t miblen;
|
|
|
|
bool retain_enabled;
|
|
size_t sz = sizeof(retain_enabled);
|
|
assert_d_eq(mallctl("opt.retain", &retain_enabled, &sz, NULL, 0),
|
|
0, "Unexpected mallctl() failure");
|
|
test_skip_if(!retain_enabled);
|
|
|
|
sz = sizeof(default_limit);
|
|
miblen = sizeof(mib)/sizeof(size_t);
|
|
assert_d_eq(mallctlnametomib("arena.0.retain_grow_limit", mib, &miblen),
|
|
0, "Unexpected mallctlnametomib() error");
|
|
|
|
assert_d_eq(mallctlbymib(mib, miblen, &default_limit, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
assert_zu_eq(default_limit, SC_LARGE_MAXCLASS,
|
|
"Unexpected default for retain_grow_limit");
|
|
|
|
new_limit = PAGE - 1;
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &new_limit,
|
|
sizeof(new_limit)), EFAULT, "Unexpected mallctl() success");
|
|
|
|
new_limit = PAGE + 1;
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &new_limit,
|
|
sizeof(new_limit)), 0, "Unexpected mallctl() failure");
|
|
assert_d_eq(mallctlbymib(mib, miblen, &old_limit, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
assert_zu_eq(old_limit, PAGE,
|
|
"Unexpected value for retain_grow_limit");
|
|
|
|
/* Expect grow less than psize class 10. */
|
|
new_limit = sz_pind2sz(10) - 1;
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &new_limit,
|
|
sizeof(new_limit)), 0, "Unexpected mallctl() failure");
|
|
assert_d_eq(mallctlbymib(mib, miblen, &old_limit, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
assert_zu_eq(old_limit, sz_pind2sz(9),
|
|
"Unexpected value for retain_grow_limit");
|
|
|
|
/* Restore to default. */
|
|
assert_d_eq(mallctlbymib(mib, miblen, NULL, NULL, &default_limit,
|
|
sizeof(default_limit)), 0, "Unexpected mallctl() failure");
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arenas_dirty_decay_ms) {
|
|
ssize_t dirty_decay_ms, orig_dirty_decay_ms, prev_dirty_decay_ms;
|
|
size_t sz = sizeof(ssize_t);
|
|
|
|
assert_d_eq(mallctl("arenas.dirty_decay_ms",
|
|
(void *)&orig_dirty_decay_ms, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
dirty_decay_ms = -2;
|
|
assert_d_eq(mallctl("arenas.dirty_decay_ms", NULL, NULL,
|
|
(void *)&dirty_decay_ms, sizeof(ssize_t)), EFAULT,
|
|
"Unexpected mallctl() success");
|
|
|
|
dirty_decay_ms = 0x7fffffff;
|
|
assert_d_eq(mallctl("arenas.dirty_decay_ms", NULL, NULL,
|
|
(void *)&dirty_decay_ms, sizeof(ssize_t)), 0,
|
|
"Expected mallctl() failure");
|
|
|
|
for (prev_dirty_decay_ms = dirty_decay_ms, dirty_decay_ms = -1;
|
|
dirty_decay_ms < 20; prev_dirty_decay_ms = dirty_decay_ms,
|
|
dirty_decay_ms++) {
|
|
ssize_t old_dirty_decay_ms;
|
|
|
|
assert_d_eq(mallctl("arenas.dirty_decay_ms",
|
|
(void *)&old_dirty_decay_ms, &sz, (void *)&dirty_decay_ms,
|
|
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
|
|
assert_zd_eq(old_dirty_decay_ms, prev_dirty_decay_ms,
|
|
"Unexpected old arenas.dirty_decay_ms");
|
|
}
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arenas_muzzy_decay_ms) {
|
|
ssize_t muzzy_decay_ms, orig_muzzy_decay_ms, prev_muzzy_decay_ms;
|
|
size_t sz = sizeof(ssize_t);
|
|
|
|
assert_d_eq(mallctl("arenas.muzzy_decay_ms",
|
|
(void *)&orig_muzzy_decay_ms, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
|
|
muzzy_decay_ms = -2;
|
|
assert_d_eq(mallctl("arenas.muzzy_decay_ms", NULL, NULL,
|
|
(void *)&muzzy_decay_ms, sizeof(ssize_t)), EFAULT,
|
|
"Unexpected mallctl() success");
|
|
|
|
muzzy_decay_ms = 0x7fffffff;
|
|
assert_d_eq(mallctl("arenas.muzzy_decay_ms", NULL, NULL,
|
|
(void *)&muzzy_decay_ms, sizeof(ssize_t)), 0,
|
|
"Expected mallctl() failure");
|
|
|
|
for (prev_muzzy_decay_ms = muzzy_decay_ms, muzzy_decay_ms = -1;
|
|
muzzy_decay_ms < 20; prev_muzzy_decay_ms = muzzy_decay_ms,
|
|
muzzy_decay_ms++) {
|
|
ssize_t old_muzzy_decay_ms;
|
|
|
|
assert_d_eq(mallctl("arenas.muzzy_decay_ms",
|
|
(void *)&old_muzzy_decay_ms, &sz, (void *)&muzzy_decay_ms,
|
|
sizeof(ssize_t)), 0, "Unexpected mallctl() failure");
|
|
assert_zd_eq(old_muzzy_decay_ms, prev_muzzy_decay_ms,
|
|
"Unexpected old arenas.muzzy_decay_ms");
|
|
}
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arenas_constants) {
|
|
#define TEST_ARENAS_CONSTANT(t, name, expected) do { \
|
|
t name; \
|
|
size_t sz = sizeof(t); \
|
|
assert_d_eq(mallctl("arenas."#name, (void *)&name, &sz, NULL, \
|
|
0), 0, "Unexpected mallctl() failure"); \
|
|
assert_zu_eq(name, expected, "Incorrect "#name" size"); \
|
|
} while (0)
|
|
|
|
TEST_ARENAS_CONSTANT(size_t, quantum, QUANTUM);
|
|
TEST_ARENAS_CONSTANT(size_t, page, PAGE);
|
|
TEST_ARENAS_CONSTANT(unsigned, nbins, SC_NBINS);
|
|
TEST_ARENAS_CONSTANT(unsigned, nlextents, SC_NSIZES - SC_NBINS);
|
|
|
|
#undef TEST_ARENAS_CONSTANT
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arenas_bin_constants) {
|
|
#define TEST_ARENAS_BIN_CONSTANT(t, name, expected) do { \
|
|
t name; \
|
|
size_t sz = sizeof(t); \
|
|
assert_d_eq(mallctl("arenas.bin.0."#name, (void *)&name, &sz, \
|
|
NULL, 0), 0, "Unexpected mallctl() failure"); \
|
|
assert_zu_eq(name, expected, "Incorrect "#name" size"); \
|
|
} while (0)
|
|
|
|
TEST_ARENAS_BIN_CONSTANT(size_t, size, bin_infos[0].reg_size);
|
|
TEST_ARENAS_BIN_CONSTANT(uint32_t, nregs, bin_infos[0].nregs);
|
|
TEST_ARENAS_BIN_CONSTANT(size_t, slab_size,
|
|
bin_infos[0].slab_size);
|
|
|
|
#undef TEST_ARENAS_BIN_CONSTANT
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arenas_lextent_constants) {
|
|
#define TEST_ARENAS_LEXTENT_CONSTANT(t, name, expected) do { \
|
|
t name; \
|
|
size_t sz = sizeof(t); \
|
|
assert_d_eq(mallctl("arenas.lextent.0."#name, (void *)&name, \
|
|
&sz, NULL, 0), 0, "Unexpected mallctl() failure"); \
|
|
assert_zu_eq(name, expected, "Incorrect "#name" size"); \
|
|
} while (0)
|
|
|
|
TEST_ARENAS_LEXTENT_CONSTANT(size_t, size,
|
|
SC_LARGE_MINCLASS);
|
|
|
|
#undef TEST_ARENAS_LEXTENT_CONSTANT
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arenas_create) {
|
|
unsigned narenas_before, arena, narenas_after;
|
|
size_t sz = sizeof(unsigned);
|
|
|
|
assert_d_eq(mallctl("arenas.narenas", (void *)&narenas_before, &sz,
|
|
NULL, 0), 0, "Unexpected mallctl() failure");
|
|
assert_d_eq(mallctl("arenas.create", (void *)&arena, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
assert_d_eq(mallctl("arenas.narenas", (void *)&narenas_after, &sz, NULL,
|
|
0), 0, "Unexpected mallctl() failure");
|
|
|
|
assert_u_eq(narenas_before+1, narenas_after,
|
|
"Unexpected number of arenas before versus after extension");
|
|
assert_u_eq(arena, narenas_after-1, "Unexpected arena index");
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_arenas_lookup) {
|
|
unsigned arena, arena1;
|
|
void *ptr;
|
|
size_t sz = sizeof(unsigned);
|
|
|
|
assert_d_eq(mallctl("arenas.create", (void *)&arena, &sz, NULL, 0), 0,
|
|
"Unexpected mallctl() failure");
|
|
ptr = mallocx(42, MALLOCX_ARENA(arena) | MALLOCX_TCACHE_NONE);
|
|
assert_ptr_not_null(ptr, "Unexpected mallocx() failure");
|
|
assert_d_eq(mallctl("arenas.lookup", &arena1, &sz, &ptr, sizeof(ptr)),
|
|
0, "Unexpected mallctl() failure");
|
|
assert_u_eq(arena, arena1, "Unexpected arena index");
|
|
dallocx(ptr, 0);
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_stats_arenas) {
|
|
#define TEST_STATS_ARENAS(t, name) do { \
|
|
t name; \
|
|
size_t sz = sizeof(t); \
|
|
assert_d_eq(mallctl("stats.arenas.0."#name, (void *)&name, &sz, \
|
|
NULL, 0), 0, "Unexpected mallctl() failure"); \
|
|
} while (0)
|
|
|
|
TEST_STATS_ARENAS(unsigned, nthreads);
|
|
TEST_STATS_ARENAS(const char *, dss);
|
|
TEST_STATS_ARENAS(ssize_t, dirty_decay_ms);
|
|
TEST_STATS_ARENAS(ssize_t, muzzy_decay_ms);
|
|
TEST_STATS_ARENAS(size_t, pactive);
|
|
TEST_STATS_ARENAS(size_t, pdirty);
|
|
|
|
#undef TEST_STATS_ARENAS
|
|
}
|
|
TEST_END
|
|
|
|
static void
|
|
alloc_hook(void *extra, UNUSED hook_alloc_t type, UNUSED void *result,
|
|
UNUSED uintptr_t result_raw, UNUSED uintptr_t args_raw[3]) {
|
|
*(bool *)extra = true;
|
|
}
|
|
|
|
static void
|
|
dalloc_hook(void *extra, UNUSED hook_dalloc_t type,
|
|
UNUSED void *address, UNUSED uintptr_t args_raw[3]) {
|
|
*(bool *)extra = true;
|
|
}
|
|
|
|
TEST_BEGIN(test_hooks) {
|
|
bool hook_called = false;
|
|
hooks_t hooks = {&alloc_hook, &dalloc_hook, NULL, &hook_called};
|
|
void *handle = NULL;
|
|
size_t sz = sizeof(handle);
|
|
int err = mallctl("experimental.hooks.install", &handle, &sz, &hooks,
|
|
sizeof(hooks));
|
|
assert_d_eq(err, 0, "Hook installation failed");
|
|
assert_ptr_ne(handle, NULL, "Hook installation gave null handle");
|
|
void *ptr = mallocx(1, 0);
|
|
assert_true(hook_called, "Alloc hook not called");
|
|
hook_called = false;
|
|
free(ptr);
|
|
assert_true(hook_called, "Free hook not called");
|
|
|
|
err = mallctl("experimental.hooks.remove", NULL, NULL, &handle,
|
|
sizeof(handle));
|
|
assert_d_eq(err, 0, "Hook removal failed");
|
|
hook_called = false;
|
|
ptr = mallocx(1, 0);
|
|
free(ptr);
|
|
assert_false(hook_called, "Hook called after removal");
|
|
}
|
|
TEST_END
|
|
|
|
TEST_BEGIN(test_hooks_exhaustion) {
|
|
bool hook_called = false;
|
|
hooks_t hooks = {&alloc_hook, &dalloc_hook, NULL, &hook_called};
|
|
|
|
void *handle;
|
|
void *handles[HOOK_MAX];
|
|
size_t sz = sizeof(handle);
|
|
int err;
|
|
for (int i = 0; i < HOOK_MAX; i++) {
|
|
handle = NULL;
|
|
err = mallctl("experimental.hooks.install", &handle, &sz,
|
|
&hooks, sizeof(hooks));
|
|
assert_d_eq(err, 0, "Error installation hooks");
|
|
assert_ptr_ne(handle, NULL, "Got NULL handle");
|
|
handles[i] = handle;
|
|
}
|
|
err = mallctl("experimental.hooks.install", &handle, &sz, &hooks,
|
|
sizeof(hooks));
|
|
assert_d_eq(err, EAGAIN, "Should have failed hook installation");
|
|
for (int i = 0; i < HOOK_MAX; i++) {
|
|
err = mallctl("experimental.hooks.remove", NULL, NULL,
|
|
&handles[i], sizeof(handles[i]));
|
|
assert_d_eq(err, 0, "Hook removal failed");
|
|
}
|
|
/* Insertion failed, but then we removed some; it should work now. */
|
|
handle = NULL;
|
|
err = mallctl("experimental.hooks.install", &handle, &sz, &hooks,
|
|
sizeof(hooks));
|
|
assert_d_eq(err, 0, "Hook insertion failed");
|
|
assert_ptr_ne(handle, NULL, "Got NULL handle");
|
|
err = mallctl("experimental.hooks.remove", NULL, NULL, &handle,
|
|
sizeof(handle));
|
|
assert_d_eq(err, 0, "Hook removal failed");
|
|
}
|
|
TEST_END
|
|
|
|
int
|
|
main(void) {
|
|
return test(
|
|
test_mallctl_errors,
|
|
test_mallctlnametomib_errors,
|
|
test_mallctlbymib_errors,
|
|
test_mallctl_read_write,
|
|
test_mallctlnametomib_short_mib,
|
|
test_mallctl_config,
|
|
test_mallctl_opt,
|
|
test_manpage_example,
|
|
test_tcache_none,
|
|
test_tcache,
|
|
test_thread_arena,
|
|
test_arena_i_initialized,
|
|
test_arena_i_dirty_decay_ms,
|
|
test_arena_i_muzzy_decay_ms,
|
|
test_arena_i_purge,
|
|
test_arena_i_decay,
|
|
test_arena_i_dss,
|
|
test_arena_i_retain_grow_limit,
|
|
test_arenas_dirty_decay_ms,
|
|
test_arenas_muzzy_decay_ms,
|
|
test_arenas_constants,
|
|
test_arenas_bin_constants,
|
|
test_arenas_lextent_constants,
|
|
test_arenas_create,
|
|
test_arenas_lookup,
|
|
test_stats_arenas,
|
|
test_hooks,
|
|
test_hooks_exhaustion);
|
|
}
|