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PAC: move in emap

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This commit is contained in:
David Goldblatt 2020-05-29 17:47:04 -07:00 committed by David Goldblatt
parent 7efcb946c4
commit 65803171a7
4 changed files with 31 additions and 28 deletions
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3
include/jemalloc/internal/pac.h
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@ -21,10 +21,11 @@ struct pac_s {
ecache_t ecache_muzzy;
ecache_t ecache_retained;
emap_t *emap;
edata_cache_t *edata_cache;
};
bool pac_init(tsdn_t *tsdn, pac_t *pac, unsigned ind,
bool pac_init(tsdn_t *tsdn, pac_t *pac, unsigned ind, emap_t *emap,
edata_cache_t *edata_cache);
#endif /* JEMALLOC_INTERNAL_PAC_H */

50
src/extent.c
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@ -282,15 +282,15 @@ extent_register_impl(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata,
* We need to hold the lock to protect against a concurrent coalesce
* operation that sees us in a partial state.
*/
emap_lock_edata(tsdn, shard->emap, edata);
emap_lock_edata(tsdn, shard->pac.emap, edata);
if (emap_register_boundary(tsdn, shard->emap, edata, SC_NSIZES,
if (emap_register_boundary(tsdn, shard->pac.emap, edata, SC_NSIZES,
/* slab */ false)) {
emap_unlock_edata(tsdn, shard->emap, edata);
emap_unlock_edata(tsdn, shard->pac.emap, edata);
return true;
}
emap_unlock_edata(tsdn, shard->emap, edata);
emap_unlock_edata(tsdn, shard->pac.emap, edata);
if (config_prof && gdump_add) {
extent_gdump_add(tsdn, edata);
@ -321,9 +321,9 @@ extent_reregister(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata) {
static void
extent_deregister_impl(tsdn_t *tsdn, pa_shard_t *shard, edata_t *edata,
bool gdump) {
emap_lock_edata(tsdn, shard->emap, edata);
emap_deregister_boundary(tsdn, shard->emap, edata);
emap_unlock_edata(tsdn, shard->emap, edata);
emap_lock_edata(tsdn, shard->pac.emap, edata);
emap_deregister_boundary(tsdn, shard->pac.emap, edata);
emap_unlock_edata(tsdn, shard->pac.emap, edata);
if (config_prof && gdump) {
extent_gdump_sub(tsdn, edata);
@ -371,8 +371,8 @@ extent_recycle_extract(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
malloc_mutex_lock(tsdn, &ecache->mtx);
edata_t *edata;
if (new_addr != NULL) {
edata = emap_lock_edata_from_addr(tsdn, shard->emap, new_addr,
false);
edata = emap_lock_edata_from_addr(tsdn, shard->pac.emap,
new_addr, false);
if (edata != NULL) {
/*
* We might null-out edata to report an error, but we
@ -386,7 +386,7 @@ extent_recycle_extract(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
!= ecache->state) {
edata = NULL;
}
emap_unlock_edata(tsdn, shard->emap, unlock_edata);
emap_unlock_edata(tsdn, shard->pac.emap, unlock_edata);
}
} else {
/*
@ -545,7 +545,7 @@ extent_recycle_split(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
extent_deregister_no_gdump_sub(tsdn, shard, to_leak);
extents_abandon_vm(tsdn, shard, ehooks, ecache, to_leak,
growing_retained);
assert(emap_lock_edata_from_addr(tsdn, shard->emap,
assert(emap_lock_edata_from_addr(tsdn, shard->pac.emap,
leak, false) == NULL);
}
return NULL;
@ -863,7 +863,7 @@ extent_try_coalesce_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
again = false;
/* Try to coalesce forward. */
edata_t *next = emap_lock_edata_from_addr(tsdn, shard->emap,
edata_t *next = emap_lock_edata_from_addr(tsdn, shard->pac.emap,
edata_past_get(edata), inactive_only);
if (next != NULL) {
/*
@ -874,7 +874,7 @@ extent_try_coalesce_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
bool can_coalesce = extent_can_coalesce(ecache,
edata, next);
emap_unlock_edata(tsdn, shard->emap, next);
emap_unlock_edata(tsdn, shard->pac.emap, next);
if (can_coalesce && !extent_coalesce(tsdn, shard,
ehooks, ecache, edata, next, true,
@ -889,12 +889,12 @@ extent_try_coalesce_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
}
/* Try to coalesce backward. */
edata_t *prev = emap_lock_edata_from_addr(tsdn, shard->emap,
edata_t *prev = emap_lock_edata_from_addr(tsdn, shard->pac.emap,
edata_before_get(edata), inactive_only);
if (prev != NULL) {
bool can_coalesce = extent_can_coalesce(ecache, edata,
prev);
emap_unlock_edata(tsdn, shard->emap, prev);
emap_unlock_edata(tsdn, shard->pac.emap, prev);
if (can_coalesce && !extent_coalesce(tsdn, shard,
ehooks, ecache, edata, prev, false,
@ -966,7 +966,7 @@ extent_record(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
malloc_mutex_lock(tsdn, &ecache->mtx);
emap_assert_mapped(tsdn, shard->emap, edata);
emap_assert_mapped(tsdn, shard->pac.emap, edata);
if (!ecache->delay_coalesce) {
edata = extent_try_coalesce(tsdn, shard, ehooks, ecache, edata,
@ -1189,13 +1189,13 @@ extent_split_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
edata_committed_get(edata), edata_ranged_get(edata),
EXTENT_NOT_HEAD);
emap_prepare_t prepare;
bool err = emap_split_prepare(tsdn, shard->emap, &prepare, edata,
bool err = emap_split_prepare(tsdn, shard->pac.emap, &prepare, edata,
size_a, trail, size_b);
if (err) {
goto label_error_b;
}
emap_lock_edata2(tsdn, shard->emap, edata, trail);
emap_lock_edata2(tsdn, shard->pac.emap, edata, trail);
err = ehooks_split(tsdn, ehooks, edata_base_get(edata), size_a + size_b,
size_a, size_b, edata_committed_get(edata));
@ -1205,14 +1205,14 @@ extent_split_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks,
}
edata_size_set(edata, size_a);
emap_split_commit(tsdn, shard->emap, &prepare, edata, size_a, trail,
emap_split_commit(tsdn, shard->pac.emap, &prepare, edata, size_a, trail,
size_b);
emap_unlock_edata2(tsdn, shard->emap, edata, trail);
emap_unlock_edata2(tsdn, shard->pac.emap, edata, trail);
return trail;
label_error_c:
emap_unlock_edata2(tsdn, shard->emap, edata, trail);
emap_unlock_edata2(tsdn, shard->pac.emap, edata, trail);
label_error_b:
edata_cache_put(tsdn, shard->pac.edata_cache, trail);
label_error_a:
@ -1250,17 +1250,17 @@ extent_merge_impl(tsdn_t *tsdn, pa_shard_t *shard, ehooks_t *ehooks, edata_t *a,
* than extent_{,de}register() to do things in the right order.
*/
emap_prepare_t prepare;
emap_merge_prepare(tsdn, shard->emap, &prepare, a, b);
emap_merge_prepare(tsdn, shard->pac.emap, &prepare, a, b);
emap_lock_edata2(tsdn, shard->emap, a, b);
emap_lock_edata2(tsdn, shard->pac.emap, a, b);
edata_size_set(a, edata_size_get(a) + edata_size_get(b));
edata_sn_set(a, (edata_sn_get(a) < edata_sn_get(b)) ?
edata_sn_get(a) : edata_sn_get(b));
edata_zeroed_set(a, edata_zeroed_get(a) && edata_zeroed_get(b));
emap_merge_commit(tsdn, shard->emap, &prepare, a, b);
emap_unlock_edata2(tsdn, shard->emap, a, b);
emap_merge_commit(tsdn, shard->pac.emap, &prepare, a, b);
emap_unlock_edata2(tsdn, shard->pac.emap, a, b);
edata_cache_put(tsdn, shard->pac.edata_cache, b);

2
src/pa.c
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@ -29,7 +29,7 @@ pa_shard_init(tsdn_t *tsdn, pa_shard_t *shard, emap_t *emap, base_t *base,
if (edata_cache_init(&shard->edata_cache, base)) {
return true;
}
if (pac_init(tsdn, &shard->pac, ind, &shard->edata_cache)) {
if (pac_init(tsdn, &shard->pac, ind, emap, &shard->edata_cache)) {
return true;
}
if (ecache_grow_init(tsdn, &shard->ecache_grow)) {

4
src/pac.c
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@ -4,7 +4,8 @@
#include "jemalloc/internal/pac.h"
bool
pac_init(tsdn_t *tsdn, pac_t *pac, unsigned ind, edata_cache_t *edata_cache) {
pac_init(tsdn_t *tsdn, pac_t *pac, unsigned ind, emap_t *emap,
edata_cache_t *edata_cache) {
/*
* Delay coalescing for dirty extents despite the disruptive effect on
* memory layout for best-fit extent allocation, since cached extents
@ -34,6 +35,7 @@ pac_init(tsdn_t *tsdn, pac_t *pac, unsigned ind, edata_cache_t *edata_cache) {
return true;
}
pac->emap = emap;
pac->edata_cache = edata_cache;
return false;
}