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dump runtime information for passes to json

This commit is contained in:
N. Engelhardt 2022-08-16 16:03:23 +02:00 committed by N. Engelhardt
parent 8e640663d6
commit 7e92e80741
1 changed files with 28 additions and 1 deletions
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29
kernel/driver.cc
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@ -210,6 +210,7 @@ int main(int argc, char **argv)
std::string scriptfile = "";
std::string depsfile = "";
std::string topmodule = "";
std::string perffile = "";
bool scriptfile_tcl = false;
bool print_banner = true;
bool print_stats = true;
@ -353,7 +354,7 @@ int main(int argc, char **argv)
}
int opt;
while ((opt = getopt(argc, argv, "MXAQTVSgm:f:Hh:b:o:p:l:L:qv:tds:c:W:w:e:r:D:P:E:x:")) != -1)
while ((opt = getopt(argc, argv, "MXAQTVSgm:f:Hh:b:o:p:l:L:qv:tds:c:W:w:e:r:D:P:E:x:B:")) != -1)
{
switch (opt)
{
@ -488,6 +489,9 @@ int main(int argc, char **argv)
case 'x':
log_experimentals_ignored.insert(optarg);
break;
case 'B':
perffile = optarg;
break;
default:
fprintf(stderr, "Run '%s -h' for help.\n", argv[0]);
exit(1);
@ -674,6 +678,29 @@ int main(int argc, char **argv)
}
log("%s\n", out_count ? "" : " no commands executed");
}
if(!perffile.empty())
{
FILE *f = fopen(perffile.c_str(), "wt");
if (f == nullptr)
log_error("Can't open performance log file for writing: %s\n", strerror(errno));
fprintf(f, "{\n");
fprintf(f, " \"generator\": \"%s\",\n", yosys_version_str);
fprintf(f, " \"total_ns\": %lu,\n", total_ns);
fprintf(f, " \"passes\": {");
bool first = true;
for (auto it = timedat.rbegin(); it != timedat.rend(); it++) {
if (!first)
fprintf(f, ",");
fprintf(f, "\n \"%s\": {\n", std::get<2>(*it).c_str());
fprintf(f, " \"runtime_ns\": %lu,\n", std::get<0>(*it));
fprintf(f, " \"num_calls\": %u\n", std::get<1>(*it));
fprintf(f, " }");
first = false;
}
fprintf(f, "\n }\n}\n");
}
}
#if defined(YOSYS_ENABLE_COVER) && (defined(__linux__) || defined(__FreeBSD__))