Futex hash

AMD Ryzen 5 5500U testing with a LENOVO LNVNB161216 (GLCN51WW BIOS) and AMD Lucienne 2GB on Arch rolling via the Phoronix Test Suite.

HTML result view exported from: https://openbenchmarking.org/result/2406101-GRID-FUTEXHA00.

Futex hashProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerOpenGLCompilerFile-SystemScreen Resolutioncpu_test_futex_hashAMD Ryzen 5 5500U @ 4.06GHz (6 Cores / 12 Threads)LENOVO LNVNB161216 (GLCN51WW BIOS)AMD Renoir/Cezanne14GB512GB INTEL SSDPEKNW512GZLAMD Lucienne 2GBAMD Renoir Radeon HD AudioRealtek RTL8822CE 802.11ac PCIeArch rolling6.9.3-arch1-1 (x86_64)KDE Plasma 6.0.5X Server 1.21.1.134.6 Mesa 24.1.1-arch1.1 (LLVM 17.0.6 DRM 3.57)GCC 14.1.1 20240522ext41920x1080OpenBenchmarking.org- Transparent Huge Pages: always- --disable-libssp --disable-libstdcxx-pch --disable-werror --enable-__cxa_atexit --enable-bootstrap --enable-cet=auto --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-default-ssp --enable-gnu-indirect-function --enable-gnu-unique-object --enable-languages=ada,c,c++,d,fortran,go,lto,m2,objc,obj-c++,rust --enable-libstdcxx-backtrace --enable-link-serialization=1 --enable-lto --enable-multilib --enable-plugin --enable-shared --enable-threads=posix --mandir=/usr/share/man --with-build-config=bootstrap-lto --with-linker-hash-style=gnu - Scaling Governor: amd-pstate-epp powersave (EPP: performance) - CPU Microcode: 0x8608103 - gather_data_sampling: Not affected + itlb_multihit: Not affected + l1tf: Not affected + mds: Not affected + meltdown: Not affected + mmio_stale_data: Not affected + reg_file_data_sampling: Not affected + retbleed: Mitigation of untrained return thunk; SMT enabled with STIBP protection + spec_rstack_overflow: Mitigation of Safe RET + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Retpolines; IBPB: conditional; STIBP: always-on; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Futex hashperf-bench: Futex HashStandard ErrorStandard Deviationcpu_test_futex_hash260228628391.241.89%OpenBenchmarking.org

perf-bench

Benchmark: Futex Hash

OpenBenchmarking.orgops/sec, More Is Betterperf-bench 6.9Benchmark: Futex Hashcpu_test_futex_hash600K1200K1800K2400K3000KSE +/- 28391.24, N = 326022861. (CXX) g++ options: -MD -lunwind-x86_64 -lunwind -llzma -flto=auto

Phoronix Test Suite v10.8.4