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Profiler/GPUViz: Stop allocating memory #4308

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Jan 28, 2025
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Profiler/GPUViz: Stop allocating memory #4308

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12 changes: 8 additions & 4 deletions FEXCore/Source/Utils/Profiler.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -98,15 +98,19 @@ void Shutdown() {
void TraceObject(std::string_view const Format, uint64_t Duration) {
if (TraceFD != -1) {
// Print the duration as something that began negative duration ago
fextl::string Event = fextl::fmt::format("{} (lduration=-{})\n", Format, Duration);
write(TraceFD, Event.c_str(), Event.size());
const auto StringSize = Format.size() + strlen(" (lduration=-)\n") + 22;
auto Event = reinterpret_cast<char*>(alloca(StringSize));
auto Res = ::fmt::format_to_n(Event, StringSize, "{} (lduration=-{})\n", Format, Duration);
write(TraceFD, Event, Res.size);
}
}

void TraceObject(std::string_view const Format) {
if (TraceFD != -1) {
fextl::string Event = fextl::fmt::format("{}\n", Format);
write(TraceFD, Event.data(), Event.size());
const auto StringSize = Format.size() + 1;
auto Event = reinterpret_cast<char*>(alloca(StringSize));
auto Res = ::fmt::format_to_n(Event, StringSize, "{}\n", Format);
write(TraceFD, Event, Res.size);
}
}
} // namespace GPUVis
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