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Add percentages to exit op counts in --ujit-stats

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Maxime Chevalier-Boisvert 2021-01-28 22:56:38 -05:00 committed by Alan Wu
parent 2e561ff255
commit a6d0c61c3c
1 changed files with 7 additions and 5 deletions
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12
ujit_iface.c
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@ -417,7 +417,6 @@ ujit_disasm(VALUE self, VALUE code, VALUE from)
} }
#endif #endif
#if RUBY_DEBUG #if RUBY_DEBUG
// implementation for --ujit-stats // implementation for --ujit-stats
@ -469,12 +468,15 @@ static void
print_insn_count_buffer(const struct insn_count *buffer, int how_many, int left_pad) print_insn_count_buffer(const struct insn_count *buffer, int how_many, int left_pad)
{ {
size_t longest_insn_len = 0; size_t longest_insn_len = 0;
size_t total_exit_count = 0;
for (int i = 0; i < how_many; i++) { for (int i = 0; i < how_many; i++) {
const char *instruction_name = insn_name(buffer[i].insn); const char *instruction_name = insn_name(buffer[i].insn);
size_t len = strlen(instruction_name); size_t len = strlen(instruction_name);
if (len > longest_insn_len) { if (len > longest_insn_len) {
longest_insn_len = len; longest_insn_len = len;
} }
total_exit_count += buffer[i].count;
} }
for (int i = 0; i < how_many; i++) { for (int i = 0; i < how_many; i++) {
@ -483,7 +485,8 @@ print_insn_count_buffer(const struct insn_count *buffer, int how_many, int left_
for (size_t j = 0; j < padding; j++) { for (size_t j = 0; j < padding; j++) {
fputc(' ', stderr); fputc(' ', stderr);
} }
fprintf(stderr, "%s: %10" PRId64 "\n", instruction_name, buffer[i].count); double percent = 100 * buffer[i].count / (double)total_exit_count;
fprintf(stderr, "%s: %10" PRId64 " (%.1f%%)\n", instruction_name, buffer[i].count, percent);
} }
} }
@ -495,15 +498,14 @@ print_ujit_stats(void)
const struct insn_count *sorted_exit_ops = sort_insn_count_array(exit_op_count); const struct insn_count *sorted_exit_ops = sort_insn_count_array(exit_op_count);
double double_ujit_exec_insns_count = rb_ujit_exec_insns_count;
double total_insns_count = vm_insns_count + rb_ujit_exec_insns_count; double total_insns_count = vm_insns_count + rb_ujit_exec_insns_count;
double ratio = double_ujit_exec_insns_count / total_insns_count; double ratio = rb_ujit_exec_insns_count / total_insns_count;
fprintf(stderr, "vm_insns_count: %10" PRId64 "\n", vm_insns_count); fprintf(stderr, "vm_insns_count: %10" PRId64 "\n", vm_insns_count);
fprintf(stderr, "ujit_exec_insns_count: %10" PRId64 "\n", rb_ujit_exec_insns_count); fprintf(stderr, "ujit_exec_insns_count: %10" PRId64 "\n", rb_ujit_exec_insns_count);
fprintf(stderr, "ratio_in_ujit: %9.1f%%\n", ratio * 100); fprintf(stderr, "ratio_in_ujit: %9.1f%%\n", ratio * 100);
fprintf(stderr, "most frequent exit op:\n"); fprintf(stderr, "most frequent exit op:\n");
print_insn_count_buffer(sorted_exit_ops, 5, 4); print_insn_count_buffer(sorted_exit_ops, 10, 4);
} }
#endif // if RUBY_DEBUG #endif // if RUBY_DEBUG