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Fix gdump triggering regression.

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Now that extents are not multiples of chunksize, it's necessary to track
pages rather than chunks.
This commit is contained in:
Jason Evans 2016-06-05 14:43:20 -07:00
parent 42faa9e3e0
commit c4bb17f891
1 changed files with 11 additions and 13 deletions
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24
src/extent.c
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@ -35,8 +35,8 @@ const extent_hooks_t extent_hooks_default = {
};
/* Used exclusively for gdump triggering. */
static size_t curchunks;
static size_t highchunks;
static size_t curpages;
static size_t highpages;
/******************************************************************************/
/*
@ -281,16 +281,15 @@ extent_register(tsdn_t *tsdn, const extent_t *extent)
extent_rtree_release(tsdn, elm_a, elm_b);
if (config_prof && opt_prof && extent_active_get(extent)) {
size_t nadd = (extent_size_get(extent) == 0) ? 1 :
extent_size_get(extent) / chunksize;
size_t cur = atomic_add_z(&curchunks, nadd);
size_t high = atomic_read_z(&highchunks);
while (cur > high && atomic_cas_z(&highchunks, high, cur)) {
size_t nadd = extent_size_get(extent) >> LG_PAGE;
size_t cur = atomic_add_z(&curpages, nadd);
size_t high = atomic_read_z(&highpages);
while (cur > high && atomic_cas_z(&highpages, high, cur)) {
/*
* Don't refresh cur, because it may have decreased
* since this thread lost the highchunks update race.
* since this thread lost the highpages update race.
*/
high = atomic_read_z(&highchunks);
high = atomic_read_z(&highpages);
}
if (cur > high && prof_gdump_get_unlocked())
prof_gdump(tsdn);
@ -329,10 +328,9 @@ extent_deregister(tsdn_t *tsdn, const extent_t *extent)
extent_rtree_release(tsdn, elm_a, elm_b);
if (config_prof && opt_prof && extent_active_get(extent)) {
size_t nsub = (extent_size_get(extent) == 0) ? 1 :
extent_size_get(extent) / chunksize;
assert(atomic_read_z(&curchunks) >= nsub);
atomic_sub_z(&curchunks, nsub);
size_t nsub = extent_size_get(extent) >> LG_PAGE;
assert(atomic_read_z(&curpages) >= nsub);
atomic_sub_z(&curpages, nsub);
}
}