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Diffstat (limited to '')
-rw-r--r-- | deps/jemalloc/test/analyze/sizes.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/deps/jemalloc/test/analyze/sizes.c b/deps/jemalloc/test/analyze/sizes.c new file mode 100644 index 0000000..44c9de5 --- /dev/null +++ b/deps/jemalloc/test/analyze/sizes.c @@ -0,0 +1,53 @@ +#include "test/jemalloc_test.h" + +#include <stdio.h> + +/* + * Print the sizes of various important core data structures. OK, I guess this + * isn't really a "stress" test, but it does give useful information about + * low-level performance characteristics, as the other things in this directory + * do. + */ + +static void +do_print(const char *name, size_t sz_bytes) { + const char *sizes[] = {"bytes", "KB", "MB", "GB", "TB", "PB", "EB", + "ZB"}; + size_t sizes_max = sizeof(sizes)/sizeof(sizes[0]); + + size_t ind = 0; + double sz = sz_bytes; + while (sz >= 1024 && ind < sizes_max - 1) { + sz /= 1024; + ind++; + } + if (ind == 0) { + printf("%-20s: %zu bytes\n", name, sz_bytes); + } else { + printf("%-20s: %f %s\n", name, sz, sizes[ind]); + } +} + +int +main() { +#define P(type) \ + do_print(#type, sizeof(type)) + P(arena_t); + P(arena_stats_t); + P(base_t); + P(decay_t); + P(edata_t); + P(ecache_t); + P(eset_t); + P(malloc_mutex_t); + P(prof_tctx_t); + P(prof_gctx_t); + P(prof_tdata_t); + P(rtree_t); + P(rtree_leaf_elm_t); + P(slab_data_t); + P(tcache_t); + P(tcache_slow_t); + P(tsd_t); +#undef P +} |