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mdbx: сбор затрат на pnl_merge() при включении MDBX_ENABLE_PROFGC.

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Леонид Юрьев (Leonid Yuriev) 2024-12-16 16:43:49 +03:00
parent 6ed4dcb4ea
commit 5168c80be8
4 changed files with 28 additions and 0 deletions
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6
mdbx.h
View File

@ -4139,6 +4139,12 @@ struct MDBX_commit_latency {
/** \brief Количество страничных промахов (page faults) внутри GC /** \brief Количество страничных промахов (page faults) внутри GC
* при выделении и подготовки страниц для самой GC. */ * при выделении и подготовки страниц для самой GC. */
uint32_t self_majflt; uint32_t self_majflt;
/* Для разборок с pnl_merge() */
struct {
uint32_t time;
uint64_t volume;
uint32_t calls;
} pnl_merge_work, pnl_merge_self;
} gc_prof; } gc_prof;
}; };
#ifndef __cplusplus #ifndef __cplusplus

8
src/gc-get.c
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@ -1064,7 +1064,15 @@ next_gc:;
} }
/* Merge in descending sorted order */ /* Merge in descending sorted order */
#if MDBX_ENABLE_PROFGC
const uint64_t merge_begin = osal_monotime();
#endif /* MDBX_ENABLE_PROFGC */
pnl_merge(txn->tw.relist, gc_pnl); pnl_merge(txn->tw.relist, gc_pnl);
#if MDBX_ENABLE_PROFGC
prof->pnl_merge.calls += 1;
prof->pnl_merge.volume += MDBX_PNL_GETSIZE(txn->tw.relist);
prof->pnl_merge.time += osal_monotime() - merge_begin;
#endif /* MDBX_ENABLE_PROFGC */
flags |= ALLOC_SHOULD_SCAN; flags |= ALLOC_SHOULD_SCAN;
if (AUDIT_ENABLED()) { if (AUDIT_ENABLED()) {
if (unlikely(!pnl_check(txn->tw.relist, txn->geo.first_unallocated))) { if (unlikely(!pnl_check(txn->tw.relist, txn->geo.first_unallocated))) {

6
src/layout-lck.h
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@ -50,6 +50,12 @@ typedef struct gc_prof_stat {
uint32_t spe_counter; uint32_t spe_counter;
/* page faults (hard page faults) */ /* page faults (hard page faults) */
uint32_t majflt; uint32_t majflt;
/* Для разборок с pnl_merge() */
struct {
uint64_t time;
uint64_t volume;
uint32_t calls;
} pnl_merge;
} gc_prof_stat_t; } gc_prof_stat_t;
/* Statistics of pages operations for all transactions, /* Statistics of pages operations for all transactions,

8
src/txn.c
View File

@ -418,6 +418,14 @@ static void take_gcprof(MDBX_txn *txn, MDBX_commit_latency *latency) {
latency->gc_prof.wipes = ptr->gc_prof.wipes; latency->gc_prof.wipes = ptr->gc_prof.wipes;
latency->gc_prof.flushes = ptr->gc_prof.flushes; latency->gc_prof.flushes = ptr->gc_prof.flushes;
latency->gc_prof.kicks = ptr->gc_prof.kicks; latency->gc_prof.kicks = ptr->gc_prof.kicks;
latency->gc_prof.pnl_merge_work.time = osal_monotime_to_16dot16(ptr->gc_prof.work.pnl_merge.time);
latency->gc_prof.pnl_merge_work.calls = ptr->gc_prof.work.pnl_merge.calls;
latency->gc_prof.pnl_merge_work.volume = ptr->gc_prof.work.pnl_merge.volume;
latency->gc_prof.pnl_merge_self.time = osal_monotime_to_16dot16(ptr->gc_prof.self.pnl_merge.time);
latency->gc_prof.pnl_merge_self.calls = ptr->gc_prof.self.pnl_merge.calls;
latency->gc_prof.pnl_merge_self.volume = ptr->gc_prof.self.pnl_merge.volume;
if (txn == env->basal_txn) if (txn == env->basal_txn)
memset(&ptr->gc_prof, 0, sizeof(ptr->gc_prof)); memset(&ptr->gc_prof, 0, sizeof(ptr->gc_prof));
} else } else