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Use rtree-based chunk lookups rather than pointer bit twiddling.

Browse Source 
Look up chunk metadata via the radix tree, rather than using
CHUNK_ADDR2BASE().

Propagate pointer's containing extent.

Minimize extent lookups by doing a single lookup (e.g. in free()) and
propagating the pointer's extent into nearly all the functions that may
need it.
This commit is contained in:
Jason Evans
2016-03-23 20:29:33 -07:00
parent 2d2b4e98c9
commit db72272bef
14 changed files with 548 additions and 504 deletions
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10
src/ckh.c
View File

@@ -283,12 +283,12 @@ ckh_grow(tsdn_t *tsdn, ckh_t *ckh)
ckh->lg_curbuckets = lg_curcells - LG_CKH_BUCKET_CELLS;
if (!ckh_rebuild(ckh, tab)) {
idalloctm(tsdn, tab, NULL, true, true);
idalloctm(tsdn, iealloc(tab), tab, NULL, true, true);
break;
}
/* Rebuilding failed, so back out partially rebuilt table. */
idalloctm(tsdn, ckh->tab, NULL, true, true);
idalloctm(tsdn, iealloc(ckh->tab), ckh->tab, NULL, true, true);
ckh->tab = tab;
ckh->lg_curbuckets = lg_prevbuckets;
}
@@ -330,7 +330,7 @@ ckh_shrink(tsdn_t *tsdn, ckh_t *ckh)
ckh->lg_curbuckets = lg_curcells - LG_CKH_BUCKET_CELLS;
if (!ckh_rebuild(ckh, tab)) {
idalloctm(tsdn, tab, NULL, true, true);
idalloctm(tsdn, iealloc(tab), tab, NULL, true, true);
#ifdef CKH_COUNT
ckh->nshrinks++;
#endif
@@ -338,7 +338,7 @@ ckh_shrink(tsdn_t *tsdn, ckh_t *ckh)
}
/* Rebuilding failed, so back out partially rebuilt table. */
idalloctm(tsdn, ckh->tab, NULL, true, true);
idalloctm(tsdn, iealloc(ckh->tab), ckh->tab, NULL, true, true);
ckh->tab = tab;
ckh->lg_curbuckets = lg_prevbuckets;
#ifdef CKH_COUNT
@@ -421,7 +421,7 @@ ckh_delete(tsdn_t *tsdn, ckh_t *ckh)
(unsigned long long)ckh->nrelocs);
#endif
idalloctm(tsdn, ckh->tab, NULL, true, true);
idalloctm(tsdn, iealloc(ckh->tab), ckh->tab, NULL, true, true);
if (config_debug)
memset(ckh, JEMALLOC_FREE_JUNK, sizeof(ckh_t));
}