Skip to content

Metric for number of live bytes in the pool allocator #51151

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 3, 2023
Merged

Metric for number of live bytes in the pool allocator #51151

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
8 changes: 8 additions & 0 deletions src/gc.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -753,6 +753,7 @@ int prev_sweep_full = 1;
int under_pressure = 0;

// Full collection heuristics
static int64_t pool_live_bytes = 0;
static int64_t live_bytes = 0;
static int64_t promoted_bytes = 0;
static int64_t last_live_bytes = 0; // live_bytes at last collection
Expand Down Expand Up @@ -1530,6 +1531,7 @@ static jl_taggedvalue_t **gc_sweep_page(jl_gc_pool_t *p, jl_gc_pagemeta_t **allo
}
gc_time_count_page(freedall, pg_skpd);
gc_num.freed += (nfree - old_nfree) * osize;
pool_live_bytes += GC_PAGE_SZ - GC_PAGE_OFFSET - nfree * osize;
return pfl;
}

Expand Down Expand Up @@ -3108,6 +3110,11 @@ JL_DLLEXPORT int64_t jl_gc_sync_total_bytes(int64_t offset) JL_NOTSAFEPOINT
return newtb - oldtb;
}

JL_DLLEXPORT int64_t jl_gc_pool_live_bytes(void)
{
return pool_live_bytes;
}

JL_DLLEXPORT int64_t jl_gc_live_bytes(void)
{
return live_bytes;
Expand Down Expand Up @@ -3269,6 +3276,7 @@ static int _jl_gc_collect(jl_ptls_t ptls, jl_gc_collection_t collection)
promoted_bytes = 0;
}
scanned_bytes = 0;
pool_live_bytes = 0;
// 6. start sweeping
uint64_t start_sweep_time = jl_hrtime();
JL_PROBE_GC_SWEEP_BEGIN(sweep_full);
Expand Down
1 change: 1 addition & 0 deletions src/jl_exported_funcs.inc
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -176,6 +176,7 @@
XX(jl_gc_internal_obj_base_ptr) \
XX(jl_gc_is_enabled) \
XX(jl_gc_is_in_finalizer) \
XX(jl_gc_pool_live_bytes) \
XX(jl_gc_live_bytes) \
XX(jl_gc_managed_malloc) \
XX(jl_gc_managed_realloc) \
Expand Down