Linux 6.14 Regression Bisect

Benchmarks by Michael Larabel for a future article.

HTML result view exported from: https://openbenchmarking.org/result/2502044-PTS-LINUX61444&grr&rdt.

Linux 6.14 Regression BisectProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDesktopDisplay ServerOpenGLCompilerFile-SystemScreen Resolutionv6.14 Gitv6.13AMD Ryzen Threadripper 7980X 64-Cores @ 5.37GHz (64 Cores / 128 Threads)System76 Thelio Major (FA Z5 BIOS)AMD Device 14a44 x 32GB DDR5-4800MT/s Micron MTC20F1045S1RC48BA21000GB CT1000T700SSD5AMD Radeon RX 6700 XT 12GBAMD Device 14ccDELL P2415QAquantia AQC113C NBase-T/IEEE + Realtek RTL8125 2.5GbE + Intel Wi-Fi 6EUbuntu 24.046.14.0-rc1-phx (x86_64)GNOME Shell 46.0X Server + Wayland4.6 Mesa 24.0.9-0ubuntu0.2 (LLVM 17.0.6 DRM 3.59)GCC 13.3.0ext41920x12006.13.0-phx (x86_64)OpenBenchmarking.orgKernel Details- Transparent Huge Pages: madviseCompiler Details- --build=x86_64-linux-gnu --disable-vtable-verify --disable-werror --enable-bootstrap --enable-cet --enable-checking=release --enable-clocale=gnu --enable-default-pie --enable-gnu-unique-object --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++,m2 --enable-libphobos-checking=release --enable-libstdcxx-backtrace --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-link-serialization=2 --enable-multiarch --enable-multilib --enable-nls --enable-objc-gc=auto --enable-offload-defaulted --enable-offload-targets=nvptx-none=/build/gcc-13-fG75Ri/gcc-13-13.3.0/debian/tmp-nvptx/usr,amdgcn-amdhsa=/build/gcc-13-fG75Ri/gcc-13-13.3.0/debian/tmp-gcn/usr --enable-plugin --enable-shared --enable-threads=posix --host=x86_64-linux-gnu --program-prefix=x86_64-linux-gnu- --target=x86_64-linux-gnu --with-abi=m64 --with-arch-32=i686 --with-build-config=bootstrap-lto-lean --with-default-libstdcxx-abi=new --with-gcc-major-version-only --with-multilib-list=m32,m64,mx32 --with-target-system-zlib=auto --with-tune=generic --without-cuda-driver -v Processor Details- Scaling Governor: amd-pstate-epp powersave (Boost: Enabled EPP: balance_performance) - CPU Microcode: 0xa108105 Security Details- v6.14 Git: gather_data_sampling: Not affected + ghostwrite: 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: Not affected + 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 Enhanced / Automatic IBRS; IBPB: conditional; STIBP: always-on; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected - v6.13: 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: Not affected + 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 Enhanced / Automatic IBRS; IBPB: conditional; STIBP: always-on; RSB filling; PBRSB-eIBRS: Not affected; BHI: Not affected + srbds: Not affected + tsx_async_abort: Not affected

Linux 6.14 Regression Bisectsrsran: PDSCH Processor Benchmark, Throughput Totalliquid-dsp: 1 - 256 - 512srsran: PUSCH Processor Benchmark, Throughput Totalsrsran: PUSCH Processor Benchmark, Throughput Threadliquid-dsp: 1 - 256 - 57liquid-dsp: 16 - 256 - 57liquid-dsp: 128 - 256 - 512liquid-dsp: 64 - 256 - 512liquid-dsp: 8 - 256 - 512liquid-dsp: 8 - 256 - 32liquid-dsp: 8 - 256 - 57liquid-dsp: 32 - 256 - 512liquid-dsp: 128 - 256 - 57liquid-dsp: 16 - 256 - 512liquid-dsp: 128 - 256 - 32liquid-dsp: 64 - 256 - 57liquid-dsp: 32 - 256 - 32liquid-dsp: 64 - 256 - 32liquid-dsp: 32 - 256 - 57liquid-dsp: 1 - 256 - 32liquid-dsp: 16 - 256 - 32srsran: PDSCH Processor Benchmark, Throughput Threadv6.14 Gitv6.1345509.32204533314726.2241.77724066796303000012779333331114300000159270000372120000513116667625243333447100000031178000046144666673189066667140836666726913000001796733333493246677025800001827.052790.72133708315652.6251.77598814390192500012704000001113933333167630000380263333494443333626633333452566666731288333346152000003215766667141146666727043000001784033333488450007022666671859.8OpenBenchmarking.org

srsRAN Project

Test: PDSCH Processor Benchmark, Throughput Total

OpenBenchmarking.orgMbps, More Is BettersrsRAN Project 24.10Test: PDSCH Processor Benchmark, Throughput Totalv6.14 Gitv6.1311K22K33K44K55KSE +/- 294.69, N = 15SE +/- 437.91, N = 345509.352790.71. (CXX) g++ options: -O3 -march=native -mtune=generic -fno-trapping-math -fno-math-errno -ldl

Liquid-DSP

Threads: 1 - Buffer Length: 256 - Filter Length: 512

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 1 - Buffer Length: 256 - Filter Length: 512v6.14 Gitv6.135M10M15M20M25MSE +/- 10837.18, N = 3SE +/- 303207.11, N = 1222045333213370831. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

srsRAN Project

Test: PUSCH Processor Benchmark, Throughput Total

OpenBenchmarking.orgMbps, More Is BettersrsRAN Project 24.10Test: PUSCH Processor Benchmark, Throughput Totalv6.14 Gitv6.133K6K9K12K15KSE +/- 151.12, N = 3SE +/- 10.88, N = 314726.215652.61. (CXX) g++ options: -O3 -march=native -mtune=generic -fno-trapping-math -fno-math-errno -ldl

srsRAN Project

Test: PUSCH Processor Benchmark, Throughput Thread

OpenBenchmarking.orgMbps, More Is BettersrsRAN Project 24.10Test: PUSCH Processor Benchmark, Throughput Threadv6.14 Gitv6.1350100150200250SE +/- 2.40, N = 15SE +/- 0.15, N = 3241.7251.71. (CXX) g++ options: -O3 -march=native -mtune=generic -fno-trapping-math -fno-math-errno -ldl

Liquid-DSP

Threads: 1 - Buffer Length: 256 - Filter Length: 57

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 1 - Buffer Length: 256 - Filter Length: 57v6.14 Gitv6.1317M34M51M68M85MSE +/- 611333.61, N = 3SE +/- 689901.04, N = 777240667759881431. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 16 - Buffer Length: 256 - Filter Length: 57

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 16 - Buffer Length: 256 - Filter Length: 57v6.14 Gitv6.13200M400M600M800M1000MSE +/- 4146146.81, N = 3SE +/- 10432002.44, N = 49630300009019250001. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 128 - Buffer Length: 256 - Filter Length: 512

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 128 - Buffer Length: 256 - Filter Length: 512v6.14 Gitv6.13300M600M900M1200M1500MSE +/- 664161.96, N = 3SE +/- 12062752.59, N = 3127793333312704000001. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 64 - Buffer Length: 256 - Filter Length: 512

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 64 - Buffer Length: 256 - Filter Length: 512v6.14 Gitv6.13200M400M600M800M1000MSE +/- 3208322.51, N = 3SE +/- 611918.66, N = 3111430000011139333331. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 8 - Buffer Length: 256 - Filter Length: 512

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 8 - Buffer Length: 256 - Filter Length: 512v6.14 Gitv6.1340M80M120M160M200MSE +/- 1267845.94, N = 3SE +/- 960433.93, N = 31592700001676300001. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 8 - Buffer Length: 256 - Filter Length: 32

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 8 - Buffer Length: 256 - Filter Length: 32v6.14 Gitv6.1380M160M240M320M400MSE +/- 4960000.00, N = 3SE +/- 677872.49, N = 33721200003802633331. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 8 - Buffer Length: 256 - Filter Length: 57

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 8 - Buffer Length: 256 - Filter Length: 57v6.14 Gitv6.13110M220M330M440M550MSE +/- 5812390.02, N = 3SE +/- 5620170.03, N = 35131166674944433331. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 32 - Buffer Length: 256 - Filter Length: 512

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 32 - Buffer Length: 256 - Filter Length: 512v6.14 Gitv6.13130M260M390M520M650MSE +/- 355637.14, N = 3SE +/- 1756097.31, N = 36252433336266333331. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 128 - Buffer Length: 256 - Filter Length: 57

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 128 - Buffer Length: 256 - Filter Length: 57v6.14 Gitv6.131000M2000M3000M4000M5000MSE +/- 7631513.61, N = 3SE +/- 3240541.79, N = 3447100000045256666671. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 16 - Buffer Length: 256 - Filter Length: 512

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 16 - Buffer Length: 256 - Filter Length: 512v6.14 Gitv6.1370M140M210M280M350MSE +/- 1757450.81, N = 3SE +/- 814336.81, N = 33117800003128833331. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 128 - Buffer Length: 256 - Filter Length: 32

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 128 - Buffer Length: 256 - Filter Length: 32v6.14 Gitv6.131000M2000M3000M4000M5000MSE +/- 13067049.31, N = 3SE +/- 12277214.67, N = 3461446666746152000001. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 64 - Buffer Length: 256 - Filter Length: 57

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 64 - Buffer Length: 256 - Filter Length: 57v6.14 Gitv6.13700M1400M2100M2800M3500MSE +/- 21197510.34, N = 3SE +/- 6272780.71, N = 3318906666732157666671. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 32 - Buffer Length: 256 - Filter Length: 32

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 32 - Buffer Length: 256 - Filter Length: 32v6.14 Gitv6.13300M600M900M1200M1500MSE +/- 272845.09, N = 3SE +/- 712585.28, N = 3140836666714114666671. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 64 - Buffer Length: 256 - Filter Length: 32

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 64 - Buffer Length: 256 - Filter Length: 32v6.14 Gitv6.13600M1200M1800M2400M3000MSE +/- 6928443.79, N = 3SE +/- 5902541.83, N = 3269130000027043000001. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 32 - Buffer Length: 256 - Filter Length: 57

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 32 - Buffer Length: 256 - Filter Length: 57v6.14 Gitv6.13400M800M1200M1600M2000MSE +/- 6786588.08, N = 3SE +/- 6272780.71, N = 3179673333317840333331. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 1 - Buffer Length: 256 - Filter Length: 32

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 1 - Buffer Length: 256 - Filter Length: 32v6.14 Gitv6.1311M22M33M44M55MSE +/- 9171.21, N = 3SE +/- 77796.74, N = 349324667488450001. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

Liquid-DSP

Threads: 16 - Buffer Length: 256 - Filter Length: 32

OpenBenchmarking.orgsamples/s, More Is BetterLiquid-DSP 1.7Threads: 16 - Buffer Length: 256 - Filter Length: 32v6.14 Gitv6.13150M300M450M600M750MSE +/- 586202.47, N = 3SE +/- 3093769.72, N = 37025800007022666671. (CC) gcc options: -O3 -pthread -lm -lc -lliquid

srsRAN Project

Test: PDSCH Processor Benchmark, Throughput Thread

OpenBenchmarking.orgMbps, More Is BettersrsRAN Project 24.10Test: PDSCH Processor Benchmark, Throughput Threadv6.14 Gitv6.13400800120016002000SE +/- 15.06, N = 9SE +/- 0.47, N = 31827.01859.81. (CXX) g++ options: -O3 -march=native -mtune=generic -fno-trapping-math -fno-math-errno -ldl

Phoronix Test Suite v10.8.5