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Disable performance counters

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This commit is contained in:
JCW
2025-05-30 10:58:48 +01:00
parent 780816a2ec
commit 881f5d9d71
1 changed files with 20 additions and 11 deletions
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31
include/xrpl/beast/hash/xxhasher.h
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@@ -32,6 +32,8 @@
#include <span>
#include <type_traits>
#define PROFILING 0
namespace beast {
class xxhasher
@@ -67,15 +69,15 @@ private:
std::span<std::uint8_t> readBuffer_;
std::span<std::uint8_t> writeBuffer_;
static XXH3_state_t*
allocState()
{
FunctionProfiler _{"-alloc"};
auto ret = XXH3_createState();
if (ret == nullptr)
throw std::bad_alloc();
return ret;
}
// static XXH3_state_t*
// allocState()
// {
// FunctionProfiler _{"-alloc"};
// auto ret = XXH3_createState();
// if (ret == nullptr)
// throw std::bad_alloc();
// return ret;
// }
void
setupBuffers()
@@ -165,16 +167,20 @@ public:
operator()(void const* key, std::size_t len) noexcept
{
totalSize_ += len;
#if PROFILING
auto start = std::chrono::steady_clock::now();
auto cpuCyclesStart = __rdtsc();
#endif
// FunctionProfiler _{"-size-" + std::to_string(len)};
// XXH3_64bits_update(state_, key, len);
// XXH3_64bits_update(wrapper.state, key, len);
writeBuffer(key, len);
#if PROFILING
duration_ += std::chrono::steady_clock::now() - start;
cpuCycles += (__rdtsc() - cpuCyclesStart);
#endif
}
explicit
@@ -182,9 +188,10 @@ public:
{
if (readBuffer_.size() == 0) return 0;
#if PROFILING
auto start = std::chrono::steady_clock::now();
auto cpuCyclesStart = __rdtsc();
#endif
std::array<std::byte, 8> hash{};
const size_t bit_width = readBuffer_.size() * 8;
const size_t shift = seed_ % bit_width;
@@ -212,6 +219,7 @@ public:
std::uint64_t result;
std::memcpy(&result, hash.data(), hash.size());
#if PROFILING
duration_ += std::chrono::steady_clock::now() - start;
cpuCycles += (__rdtsc() - cpuCyclesStart);
@@ -222,6 +230,7 @@ public:
FunctionProfiler::funcionDurations
["xxhasher-" + std::to_string(totalSize_)]
.cpuCycles.emplace_back(cpuCycles);
#endif
return result;
// auto start = std::chrono::steady_clock::now();
// // auto ret = XXH3_64bits_digest(state_);