Changeset: 38f05e39794c for MonetDB
URL: https://dev.monetdb.org/hg/MonetDB/rev/38f05e39794c
Modified Files:
gdk/gdk_utils.c
Branch: Mar2025
Log Message:
Print tcmalloc statistics with USR1.
diffs (40 lines):
diff --git a/gdk/gdk_utils.c b/gdk/gdk_utils.c
--- a/gdk/gdk_utils.c
+++ b/gdk/gdk_utils.c
@@ -61,6 +61,11 @@ static void GDKunlockHome(int farmid);
#undef realloc
#undef free
+#ifdef WITH_TCMALLOC
+#include <gperftools/tcmalloc.h>
+#include <gperftools/malloc_extension_c.h>
+#endif
+
/* when the number of updates to a BAT is less than 1 in this number, we
* keep the unique_est property */
BUN gdk_unique_estimate_keep_fraction = GDK_UNIQUE_ESTIMATE_KEEP_FRACTION; /*
should become a define once */
@@ -2057,6 +2062,24 @@ GDKprintinfo(void)
jeresident, humansize(jeresident, (char[24]){0}, 24),
jeretained, humansize(jeretained, (char[24]){0}, 24));
#endif
+#ifdef WITH_TCMALLOC
+ size_t tcallocated = 0, tchsize = 0, tcfree = 0, tcunmapped = 0, tcmax
= 0, tccur = 0;
+ MallocExtension_GetNumericProperty("generic.current_allocated_bytes",
&tcallocated);
+ MallocExtension_GetNumericProperty("generic.heap_size", &tchsize);
+ MallocExtension_GetNumericProperty("tcmalloc.pageheap_free_bytes",
&tcfree);
+ MallocExtension_GetNumericProperty("tcmalloc.pageheap_unmapped_bytes",
&tcunmapped);
+
MallocExtension_GetNumericProperty("tcmalloc.max_total_thread_cache_bytes",
&tcmax);
+
MallocExtension_GetNumericProperty("tcmalloc.current_total_thread_cache_bytes",
&tccur);
+ printf("tcmalloc: allocated %zu%s, heap size %zu%s, free %zu%s, "
+ "unmapped %zu%s, max total thread cache %zu%s, "
+ "current total thread cache %zu%s\n",
+ tcallocated, humansize(tcallocated, (char[24]){0}, 24),
+ tchsize, humansize(tchsize, (char[24]){0}, 24),
+ tcfree, humansize(tcfree, (char[24]){0}, 24),
+ tcunmapped, humansize(tcunmapped, (char[24]){0}, 24),
+ tcmax, humansize(tcmax, (char[24]){0}, 24),
+ tccur, humansize(tccur, (char[24]){0}, 24));
+#endif
#elif defined(HAVE_MALLINFO2)
struct mallinfo2 mi = mallinfo2();
printf("mallinfo: arena %zu%s, ordblks %zu, smblks %zu, hblks %zu, "
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