std::string Timer::Show() {
std::string ret;
if (Counters().empty()) return ret;
auto const url = g_context->getRequestUrl(75);
folly::format(&ret, "\nJIT timers for {}\n", url);
auto const header = "{:<40} | {:>15} {:>15} {:>15}\n";
auto const row = "{:<40} | {:>15} {:>13,}us {:>13,}ns\n";
folly::format(&ret, header, "name", "count", "total time", "average time");
folly::format(&ret, "{:-^40}-+{:-^48}\n", "", "");
std::map<std::string, Counter> sorted(s_counters->begin(), s_counters->end());
for (auto const& pair : sorted) {
auto& name = pair.first;
auto& counter = pair.second;
folly::format(&ret, row, name, counter.count, counter.total / 1000,
counter.mean());
}
ret += '\n';
return ret;
}
void TracePC::UpdateObservedPCs() {
auto Observe = [&](uintptr_t PC) {
bool Inserted = ObservedPCs.insert(PC).second;
if (Inserted && DoPrintNewPCs)
PrintPC("\tNEW_PC: %p %F %L\n", "\tNEW_PC: %p\n", PC + 1);
};
if (NumPCsInPCTables) {
if (NumInline8bitCounters == NumPCsInPCTables) {
for (size_t i = 0; i < NumModulesWithInline8bitCounters; i++) {
uint8_t *Beg = ModuleCounters[i].Start;
size_t Size = ModuleCounters[i].Stop - Beg;
assert(Size ==
(size_t)(ModulePCTable[i].Stop - ModulePCTable[i].Start));
for (size_t j = 0; j < Size; j++)
if (Beg[j])
Observe(ModulePCTable[i].Start[j]);
}
} else if (NumGuards == NumPCsInPCTables) {
size_t GuardIdx = 1;
for (size_t i = 0; i < NumModules; i++) {
uint32_t *Beg = Modules[i].Start;
size_t Size = Modules[i].Stop - Beg;
assert(Size ==
(size_t)(ModulePCTable[i].Stop - ModulePCTable[i].Start));
for (size_t j = 0; j < Size; j++, GuardIdx++)
if (Counters()[GuardIdx])
Observe(ModulePCTable[i].Start[j]);
}
}
}
if (size_t NumClangCounters =
ClangCountersEnd() - ClangCountersBegin()) {
auto P = ClangCountersBegin();
for (size_t Idx = 0; Idx < NumClangCounters; Idx++)
if (P[Idx])
Observe((uintptr_t)Idx);
}
}
