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perf_meter.hpp: move logic to noinline function

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May improve performance if perf meter is disabled.
This commit is contained in:
Nekotekina 2020-11-25 07:26:37 +03:00
parent 2b674d4d8c
commit 95b8467a76
1 changed files with 17 additions and 14 deletions
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31
rpcs3/Emu/perf_meter.hpp
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@ -72,8 +72,23 @@ class perf_stat final : public perf_stat_base
} g_tls_perf_stat; } g_tls_perf_stat;
public: public:
static void push(u64 ns) noexcept static NEVER_INLINE void push(u64 start_time) noexcept
{ {
// Event end
const u64 end_time = (_mm_lfence(), __rdtsc());
// Compute difference in seconds
const f64 diff = (end_time - start_time) * 1. / utils::get_tsc_freq();
// Register perf stat in nanoseconds
const u64 ns = static_cast<u64>(diff * 1000'000'000.);
// Print in microseconds
if (static_cast<u64>(diff * 1000'000.) >= g_cfg.core.perf_report_threshold)
{
perf_log.notice(u8"%s: %.3fµs", perf_name<ShortName>.data(), diff * 1000'000.);
}
auto& data = g_tls_perf_stat.m_log; auto& data = g_tls_perf_stat.m_log;
data[0] += ns != 0; data[0] += ns != 0;
data[64 - std::countl_zero(ns)]++; data[64 - std::countl_zero(ns)]++;
@ -174,20 +189,8 @@ public:
return; return;
} }
// Event end
const u64 end_time = __rdtsc();
// Compute difference in seconds
const f64 diff = (end_time - m_timestamps[0]) * 1. / utils::get_tsc_freq();
// Register perf stat in nanoseconds // Register perf stat in nanoseconds
perf_stat<ShortName>::push(static_cast<u64>(diff * 1000'000'000.)); perf_stat<ShortName>::push(m_timestamps[0]);
// Print in microseconds
if (static_cast<u64>(diff * 1000'000.) >= g_cfg.core.perf_report_threshold)
{
perf_log.notice(u8"%s: %.3fµs", perf_name<ShortName>.data(), diff * 1000'000.);
}
// TODO: handle push(), currently ignored // TODO: handle push(), currently ignored
} }