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server-skynet-source-3rd-je.../include/jemalloc/internal/arena_stats.h

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Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
#ifndef JEMALLOC_INTERNAL_ARENA_STATS_H
#define JEMALLOC_INTERNAL_ARENA_STATS_H
#include "jemalloc/internal/atomic.h"
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
#include "jemalloc/internal/lockedint.h"
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
#include "jemalloc/internal/mutex.h"
#include "jemalloc/internal/mutex_prof.h"
PA: Add a stats type.
2020-03-09 04:08:15 +08:00
#include "jemalloc/internal/pa.h"
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
#include "jemalloc/internal/sc.h"
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
Clean compilation -Wextra Before this commit jemalloc produced many warnings when compiled with -Wextra with both Clang and GCC. This commit fixes the issues raised by these warnings or suppresses them if they were spurious at least for the Clang and GCC versions covered by CI. This commit: * adds `JEMALLOC_DIAGNOSTIC` macros: `JEMALLOC_DIAGNOSTIC_{PUSH,POP}` are used to modify the stack of enabled diagnostics. The `JEMALLOC_DIAGNOSTIC_IGNORE_...` macros are used to ignore a concrete diagnostic. * adds `JEMALLOC_FALLTHROUGH` macro to explicitly state that falling through `case` labels in a `switch` statement is intended * Removes all UNUSED annotations on function parameters. The warning -Wunused-parameter is now disabled globally in `jemalloc_internal_macros.h` for all translation units that include that header. It is never re-enabled since that header cannot be included by users. * locally suppresses some -Wextra diagnostics: * `-Wmissing-field-initializer` is buggy in older Clang and GCC versions, where it does not understanding that, in C, `= {0}` is a common C idiom to initialize a struct to zero * `-Wtype-bounds` is suppressed in a particular situation where a generic macro, used in multiple different places, compares an unsigned integer for smaller than zero, which is always true. * `-Walloc-larger-than-size=` diagnostics warn when an allocation function is called with a size that is too large (out-of-range). These are suppressed in the parts of the tests where `jemalloc` explicitly does this to test that the allocation functions fail properly. * adds a new CI build bot that runs the log unit test on CI. Closes #1196 .
2018-05-03 17:40:53 +08:00
JEMALLOC_DIAGNOSTIC_DISABLE_SPURIOUS
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
typedef struct arena_stats_large_s arena_stats_large_t;
struct arena_stats_large_s {
/*
* Total number of allocation/deallocation requests served directly by
* the arena.
*/
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
locked_u64_t nmalloc;
locked_u64_t ndalloc;
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
/*
* Number of allocation requests that correspond to this size class.
* This includes requests served by tcache, though tcache only
* periodically merges into this counter.
*/
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
locked_u64_t nrequests; /* Partially derived. */
Track nfills and nflushes for arenas.i.small / large. Small is added purely for convenience. Large flushes wasn't tracked before and can be useful in analysis. Large fill simply reports nmalloc, since there is no batch fill for large currently.
2019-05-07 07:36:55 +08:00
/*
* Number of tcache fills / flushes for large (similarly, periodically
* merged). Note that there is no large tcache batch-fill currently
* (i.e. only fill 1 at a time); however flush may be batched.
*/
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
locked_u64_t nfills; /* Partially derived. */
locked_u64_t nflushes; /* Partially derived. */
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
/* Current number of allocations of this size class. */
size_t curlextents; /* Derived. */
};
Add extents information to mallocstats output - Show number/bytes of extents of each size that are dirty, muzzy, retained.
2018-08-01 00:49:49 +08:00
typedef struct arena_stats_extents_s arena_stats_extents_t;
struct arena_stats_extents_s {
/*
* Stats for a given index in the range [0, SC_NPSIZES] in an extents_t.
* We track both bytes and # of extents: two extents in the same bucket
* may have different sizes if adjacent size classes differ by more than
* a page, so bytes cannot always be derived from # of extents.
*/
atomic_zu_t ndirty;
atomic_zu_t dirty_bytes;
atomic_zu_t nmuzzy;
atomic_zu_t muzzy_bytes;
atomic_zu_t nretained;
atomic_zu_t retained_bytes;
};
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
/*
* Arena stats. Note that fields marked "derived" are not directly maintained
* within the arena code; rather their values are derived during stats merge
* requests.
*/
typedef struct arena_stats_s arena_stats_t;
struct arena_stats_s {
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
LOCKEDINT_MTX_DECLARE(mtx)
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
/*
* Number of unused virtual memory bytes currently retained. Retained
* bytes are technically mapped (though always decommitted or purged),
* but they are excluded from the mapped statistic (above).
*/
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
locked_zu_t retained; /* Derived. */
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
Rename extent_t to edata_t. This frees us up from the unfortunate extent/extent2 naming collision.
2019-12-10 06:36:45 +08:00
/* Number of edata_t structs allocated by base, but not being used. */
Arena stats: mark edata_avail as derived. The true number is in the edata_cache itself.
2020-03-10 04:19:09 +08:00
atomic_zu_t edata_avail; /* Derived. */
Add stats for the size of extent_avail heap
2018-08-02 05:14:33 +08:00
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
atomic_zu_t base; /* Derived. */
atomic_zu_t internal;
atomic_zu_t resident; /* Derived. */
atomic_zu_t metadata_thp;
atomic_zu_t allocated_large; /* Derived. */
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
locked_u64_t nmalloc_large; /* Derived. */
locked_u64_t ndalloc_large; /* Derived. */
locked_u64_t nfills_large; /* Derived. */
locked_u64_t nflushes_large; /* Derived. */
locked_u64_t nrequests_large; /* Derived. */
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
PA: Add a stats type.
2020-03-09 04:08:15 +08:00
/*
* The stats logically owned by the pa_shard in the same arena. This
* lives here only because it's convenient for the purposes of the ctl
* module -- it only knows about the single arena_stats.
*/
pa_shard_stats_t pa_shard_stats;
Track the leaked VM space via the abandoned_vm counter. The counter is 0 unless metadata allocation failed (indicates OOM), and is mainly for sanity checking.
2019-07-16 06:56:05 +08:00
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
/* Number of bytes cached in tcache associated with this arena. */
atomic_zu_t tcache_bytes; /* Derived. */
mutex_prof_data_t mutex_prof_data[mutex_prof_num_arena_mutexes];
/* One element for each large size class. */
Hide size class computation behind a layer of indirection. This class removes almost all the dependencies on size_classes.h, accessing the data there only via the new module sc.h, which does not depend on any configuration options. In a subsequent commit, we'll remove the configure-time size class computations, doing them at boot time, instead.
2017-12-15 04:46:39 +08:00
arena_stats_large_t lstats[SC_NSIZES - SC_NBINS];
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
/* Arena uptime. */
nstime_t uptime;
};
static inline bool
Clean compilation -Wextra Before this commit jemalloc produced many warnings when compiled with -Wextra with both Clang and GCC. This commit fixes the issues raised by these warnings or suppresses them if they were spurious at least for the Clang and GCC versions covered by CI. This commit: * adds `JEMALLOC_DIAGNOSTIC` macros: `JEMALLOC_DIAGNOSTIC_{PUSH,POP}` are used to modify the stack of enabled diagnostics. The `JEMALLOC_DIAGNOSTIC_IGNORE_...` macros are used to ignore a concrete diagnostic. * adds `JEMALLOC_FALLTHROUGH` macro to explicitly state that falling through `case` labels in a `switch` statement is intended * Removes all UNUSED annotations on function parameters. The warning -Wunused-parameter is now disabled globally in `jemalloc_internal_macros.h` for all translation units that include that header. It is never re-enabled since that header cannot be included by users. * locally suppresses some -Wextra diagnostics: * `-Wmissing-field-initializer` is buggy in older Clang and GCC versions, where it does not understanding that, in C, `= {0}` is a common C idiom to initialize a struct to zero * `-Wtype-bounds` is suppressed in a particular situation where a generic macro, used in multiple different places, compares an unsigned integer for smaller than zero, which is always true. * `-Walloc-larger-than-size=` diagnostics warn when an allocation function is called with a size that is too large (out-of-range). These are suppressed in the parts of the tests where `jemalloc` explicitly does this to test that the allocation functions fail properly. * adds a new CI build bot that runs the log unit test on CI. Closes #1196 .
2018-05-03 17:40:53 +08:00
arena_stats_init(tsdn_t *tsdn, arena_stats_t *arena_stats) {
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
if (config_debug) {
for (size_t i = 0; i < sizeof(arena_stats_t); i++) {
assert(((char *)arena_stats)[i] == 0);
}
}
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
if (LOCKEDINT_MTX_INIT(LOCKEDINT_MTX(arena_stats->mtx), "arena_stats",
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
WITNESS_RANK_ARENA_STATS, malloc_mutex_rank_exclusive)) {
return true;
}
/* Memory is zeroed, so there is no need to clear stats. */
return false;
}
static inline void
Track nfills and nflushes for arenas.i.small / large. Small is added purely for convenience. Large flushes wasn't tracked before and can be useful in analysis. Large fill simply reports nmalloc, since there is no batch fill for large currently.
2019-05-07 07:36:55 +08:00
arena_stats_large_flush_nrequests_add(tsdn_t *tsdn, arena_stats_t *arena_stats,
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
szind_t szind, uint64_t nrequests) {
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
LOCKEDINT_MTX_LOCK(tsdn, arena_stats->mtx);
Track nfills and nflushes for arenas.i.small / large. Small is added purely for convenience. Large flushes wasn't tracked before and can be useful in analysis. Large fill simply reports nmalloc, since there is no batch fill for large currently.
2019-05-07 07:36:55 +08:00
arena_stats_large_t *lstats = &arena_stats->lstats[szind - SC_NBINS];
Introduce lockedint module. This pulls out the various abstractions where some stats counter is sometimes an atomic, sometimes a plain variable, sometimes always protected by a lock, sometimes protected by reads but not writes, etc. With this change, these cases are treated consistently, and access patterns tagged. In the process, we fix a few missed-update bugs (where one caller assumes "protected-by-a-lock" semantics and another does not).
2020-03-09 11:43:41 +08:00
locked_inc_u64(tsdn, LOCKEDINT_MTX(arena_stats->mtx),
&lstats->nrequests, nrequests);
locked_inc_u64(tsdn, LOCKEDINT_MTX(arena_stats->mtx),
&lstats->nflushes, 1);
LOCKEDINT_MTX_UNLOCK(tsdn, arena_stats->mtx);
Split up and standardize naming of stats code. The arena-associated stats are now all prefixed with arena_stats_, and live in their own file. Likewise, malloc_bin_stats_t -> bin_stats_t, also in its own file.
2017-11-05 03:50:19 +08:00
}
#endif /* JEMALLOC_INTERNAL_ARENA_STATS_H */
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