server-skynet-source-3rd-je.../include/jemalloc/internal/hpa_opts.h
Kevin Svetlitski 41e0b857be Make headers self-contained by fixing #includes
Header files are now self-contained, which makes the relationships
between the files clearer, and crucially allows LSP tools like `clangd`
to function correctly in all of our header files. I have verified that
the headers are self-contained (aside from the various Windows shims) by
compiling them as if they were C files – in a follow-up commit I plan to
add this to CI to ensure we don't regress on this front.
2023-07-14 09:06:32 -07:00

76 lines
2.0 KiB
C

#ifndef JEMALLOC_INTERNAL_HPA_OPTS_H
#define JEMALLOC_INTERNAL_HPA_OPTS_H
#include "jemalloc/internal/jemalloc_preamble.h"
#include "jemalloc/internal/fxp.h"
/*
* This file is morally part of hpa.h, but is split out for header-ordering
* reasons.
*/
typedef struct hpa_shard_opts_s hpa_shard_opts_t;
struct hpa_shard_opts_s {
/*
* The largest size we'll allocate out of the shard. For those
* allocations refused, the caller (in practice, the PA module) will
* fall back to the more general (for now) PAC, which can always handle
* any allocation request.
*/
size_t slab_max_alloc;
/*
* When the number of active bytes in a hugepage is >=
* hugification_threshold, we force hugify it.
*/
size_t hugification_threshold;
/*
* The HPA purges whenever the number of pages exceeds dirty_mult *
* active_pages. This may be set to (fxp_t)-1 to disable purging.
*/
fxp_t dirty_mult;
/*
* Whether or not the PAI methods are allowed to defer work to a
* subsequent hpa_shard_do_deferred_work() call. Practically, this
* corresponds to background threads being enabled. We track this
* ourselves for encapsulation purposes.
*/
bool deferral_allowed;
/*
* How long a hugepage has to be a hugification candidate before it will
* actually get hugified.
*/
uint64_t hugify_delay_ms;
/*
* Minimum amount of time between purges.
*/
uint64_t min_purge_interval_ms;
};
#define HPA_SHARD_OPTS_DEFAULT { \
/* slab_max_alloc */ \
64 * 1024, \
/* hugification_threshold */ \
HUGEPAGE * 95 / 100, \
/* dirty_mult */ \
FXP_INIT_PERCENT(25), \
/* \
* deferral_allowed \
* \
* Really, this is always set by the arena during creation \
* or by an hpa_shard_set_deferral_allowed call, so the value \
* we put here doesn't matter. \
*/ \
false, \
/* hugify_delay_ms */ \
10 * 1000, \
/* min_purge_interval_ms */ \
5 * 1000 \
}
#endif /* JEMALLOC_INTERNAL_HPA_OPTS_H */