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wip: initial delayed purging of arenas

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This commit is contained in:
Daan Leijen 2023-03-31 14:07:59 -07:00
parent bd66d54765
commit 7cf60deb12
5 changed files with 202 additions and 13 deletions
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7
src/options.c
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@ -87,7 +87,8 @@ static mi_option_desc_t options[_mi_option_last] =
{ 16, UNINIT, MI_OPTION(max_warnings) }, // maximum warnings that are output
{ 8, UNINIT, MI_OPTION(max_segment_reclaim)},// max. number of segment reclaims from the abandoned segments per try.
{ 0, UNINIT, MI_OPTION(destroy_on_exit)}, // release all OS memory on process exit; careful with dangling pointer or after-exit frees!
{ 0, UNINIT, MI_OPTION(eager_reserve) } // reserve memory N KiB at a time (slower in v1.x due to regions)
{ 0, UNINIT, MI_OPTION(arena_reserve) }, // reserve memory N KiB at a time (slower in v1.x due to regions)
{ 500, UNINIT, MI_OPTION(arena_purge_delay) } // reset/decommit delay in milli-seconds for arena allocation
};
static void mi_option_init(mi_option_desc_t* desc);
@ -126,7 +127,7 @@ mi_decl_nodiscard long mi_option_get_clamp(mi_option_t option, long min, long ma
}
mi_decl_nodiscard size_t mi_option_get_size(mi_option_t option) {
mi_assert_internal(option == mi_option_reserve_os_memory || option == mi_option_eager_reserve);
mi_assert_internal(option == mi_option_reserve_os_memory || option == mi_option_arena_reserve);
long x = mi_option_get(option);
return (x < 0 ? 0 : (size_t)x * MI_KiB);
}
@ -524,7 +525,7 @@ static void mi_option_init(mi_option_desc_t* desc) {
else {
char* end = buf;
long value = strtol(buf, &end, 10);
if (desc->option == mi_option_reserve_os_memory || desc->option == mi_option_eager_reserve) {
if (desc->option == mi_option_reserve_os_memory || desc->option == mi_option_arena_reserve) {
// this option is interpreted in KiB to prevent overflow of `long`
if (*end == 'K') { end++; }
else if (*end == 'M') { value *= MI_KiB; end++; }