wroclaw-git-backups/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2025-07-06 09:11:47 +02:00
Code Activity

libexpr: Track and show GC time and cycle number

Browse source
This commit is contained in:
Robert Hensing 2024-07-22 12:56:01 +02:00
parent 0ec5e3a1bc
commit b16861d82e
3 changed files with 32 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

12
src/libexpr/eval-gc.cc
View file

@ -155,6 +155,10 @@ static inline void initGCReal()
there. */
GC_set_no_dls(1);
/* Enable perf measurements. This is just a setting; not much of a
start of something. */
GC_start_performance_measurement();
GC_INIT();
GC_set_oom_fn(oomHandler);
@ -205,6 +209,7 @@ static inline void initGCReal()
#endif
static bool gcInitialised = false;
static GC_word gcCyclesAfterInit = 0;
void initGC()
{
@ -216,6 +221,7 @@ void initGC()
#endif
gcInitialised = true;
gcCyclesAfterInit = GC_get_gc_no();
}
void assertGCInitialized()
@ -223,4 +229,10 @@ void assertGCInitialized()
assert(gcInitialised);
}
size_t getGCCycles()
{
assertGCInitialized();
return GC_get_gc_no() - gcCyclesAfterInit;
}
} // namespace nix