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improve page commit on demand

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This commit is contained in:
daanx 2024-12-24 11:37:52 -08:00
parent ba68810333
commit d21114b5f2
7 changed files with 101 additions and 56 deletions
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20
src/os.c
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@ -429,9 +429,9 @@ static void* mi_os_page_align_area_conservative(void* addr, size_t size, size_t*
return mi_os_page_align_areax(true, addr, size, newsize);
}
bool _mi_os_commit(void* addr, size_t size, bool* is_zero) {
bool _mi_os_commit_ex(void* addr, size_t size, bool* is_zero, size_t stat_size) {
if (is_zero != NULL) { *is_zero = false; }
mi_os_stat_increase(committed, size); // use size for precise commit vs. decommit
mi_os_stat_increase(committed, stat_size); // use size for precise commit vs. decommit
mi_os_stat_counter_increase(commit_calls, 1);
// page align range
@ -458,9 +458,13 @@ bool _mi_os_commit(void* addr, size_t size, bool* is_zero) {
return true;
}
static bool mi_os_decommit_ex(void* addr, size_t size, bool* needs_recommit) {
bool _mi_os_commit(void* addr, size_t size, bool* is_zero) {
return _mi_os_commit_ex(addr, size, is_zero, size);
}
static bool mi_os_decommit_ex(void* addr, size_t size, bool* needs_recommit, size_t stats_size) {
mi_assert_internal(needs_recommit!=NULL);
mi_os_stat_decrease(committed, size);
mi_os_stat_decrease(committed, stats_size);
// page align
size_t csize;
@ -479,7 +483,7 @@ static bool mi_os_decommit_ex(void* addr, size_t size, bool* needs_recommit) {
bool _mi_os_decommit(void* addr, size_t size) {
bool needs_recommit;
return mi_os_decommit_ex(addr, size, &needs_recommit);
return mi_os_decommit_ex(addr, size, &needs_recommit, size);
}
@ -509,7 +513,7 @@ bool _mi_os_reset(void* addr, size_t size) {
// either resets or decommits memory, returns true if the memory needs
// to be recommitted if it is to be re-used later on.
bool _mi_os_purge_ex(void* p, size_t size, bool allow_reset)
bool _mi_os_purge_ex(void* p, size_t size, bool allow_reset, size_t stats_size)
{
if (mi_option_get(mi_option_purge_delay) < 0) return false; // is purging allowed?
mi_os_stat_counter_increase(purge_calls, 1);
@ -519,7 +523,7 @@ bool _mi_os_purge_ex(void* p, size_t size, bool allow_reset)
!_mi_preloading()) // don't decommit during preloading (unsafe)
{
bool needs_recommit = true;
mi_os_decommit_ex(p, size, &needs_recommit);
mi_os_decommit_ex(p, size, &needs_recommit, stats_size);
return needs_recommit;
}
else {
@ -533,7 +537,7 @@ bool _mi_os_purge_ex(void* p, size_t size, bool allow_reset)
// either resets or decommits memory, returns true if the memory needs
// to be recommitted if it is to be re-used later on.
bool _mi_os_purge(void* p, size_t size) {
return _mi_os_purge_ex(p, size, true);
return _mi_os_purge_ex(p, size, true, size);
}