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Machine Info

Fields

hardware None
os_version None

Parameters

cpu Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
Address sizes: 48 bits physical, 48 bits virtual
CPU(s): 128
On-line CPU(s) list: 0-127
Thread(s) per core: 2
Core(s) per socket: 64
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 23
Model: 49
Model name: AMD EPYC 7702 64-Core Processor
Stepping: 0
Frequency boost: enabled
CPU MHz: 1500.000
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.68
Virtualization: AMD-V
L1d cache: 2 MiB
L1i cache: 2 MiB
L2 cache: 32 MiB
L3 cache: 256 MiB
NUMA node0 CPU(s): 0-127
Vulnerability Itlb multihit: Not affected
Vulnerability L1tf: Not affected
Vulnerability Mds: Not affected
Vulnerability Meltdown: Not affected
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl and seccomp
Vulnerability Spectre v1: Mitigation; usercopy/swapgs barriers and __user pointer sanitization
Vulnerability Spectre v2: Mitigation; Full AMD retpoline, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb cat_l3 cdp_l3 hw_pstate ssbd mba ibrs ibpb stibp vmmcall fsgsbase bmi1 avx2 smep bmi2 cqm rdt_a rdseed adx smap clflushopt clwb sha_ni xsaveopt xsavec xgetbv1 xsaves cqm_llc cqm_occup_llc cqm_mbm_total cqm_mbm_local clzero irperf xsaveerptr rdpru wbnoinvd amd_ppin arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif umip rdpid overflow_recov succor smca
memory MemTotal: 263695408 kB
Run Info

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.34.0.20200325-1
Copyright (C) 2020 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or later.
This program has absolutely no warranty.
This assembler was configured for a target of `x86_64-suse-linux'.
gcc gcc (GCC) 11.0.0 20201010 (experimental) afec2114520b6e7c5762f5e791f9f33d660b597e
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
git_revision afec2114520b6e7c5762f5e791f9f33d660b597e
glibc GNU C Library (GNU libc) stable release version 2.31 (git 0a8262a1b2).
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.
There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE.
Configured for x86_64-suse-linux.
Compiled by GNU CC version 10.1.1 20200625 [revision c91e43e9363bd119a695d64505f96539fa451bf2].
libc ABIs: UNIQUE IFUNC ABSOLUTE
For bug reporting instructions, please see:
<http://bugs.opensuse.org>.
glibc_location /lib64/libc.so.6
ld GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.34.0.20200325-1
options None
reason None
uname Linux benzen 5.7.9-1-default #1 SMP Thu Jul 16 09:40:08 UTC 2020 (a010166) x86_64 x86_64 x86_64 GNU/Linux
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benzen.gcc-trunk-honza.O_g test results

Run Order Start Time Duration
Current 1602359301000.afec2114520b6e7c5762f5e791f9f33d660b597e 2020-10-10T23:14:33.132184 0:01:31.988183
Previous 1601747302000.75f27a872e94cbe2e661d58d527d42140ea30424 2020-10-03T22:57:55.587757 0:01:33.302549
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.090919

Tests Summary

Status Group # # (B)
Performance Regressions 4 8
Performance Improvements 4 23
Added Tests 3 3
Unchanged Tests 277 254
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36291.cpp 8.64% 20.373 22.134 - -1.87% -
random/pr38518.c 4.77% 4.699 4.923 - 0.28% -
random/pr28071.c 2.54% 43.701 44.811 - -16.12% -
random/pr69609.c 2.40% 20.603 21.098 - -5.30% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp -4.25% 48.465 46.405 - -6.79% -
random/pr36439.cpp -3.77% 24.885 23.946 - -1.98% -
random/pr39326.c -3.31% 107.022 103.481 - -22.22% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr29433.cpp/elf -2.45% 1.39 MB 1.36 MB - -2.21% -

Added Tests - size
random/empty.C/elf/sections/text
random/empty.c/elf/sections/text
random/pr36439.cpp/elf/sections/text

Run-Over-Baseline Changes Detail

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36291.cpp 10.52% 571.09 MB 631.18 MB - -0.63% -
random/empty.C 4.96% 17.71 MB 18.59 MB - 0.78% -
random/pr12392.cpp 3.65% 704.75 MB 730.48 MB - -0.19% -
random/pr39326.c 3.57% 447.35 MB 463.33 MB - -0.07% -
random/empty.c 2.86% 16.54 MB 17.02 MB - 0.07% -
random/pr29433.cpp 2.76% 1.92 GB 1.97 GB - 0.25% -
random/pr36439.cpp 2.01% 513.34 MB 523.64 MB - -0.20% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp/elf/sections/text 2.12% 27.32 KB 27.90 KB - 0.36% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c -22.22% 133.049 103.481 - -3.31% -
random/pr12392.cpp -20.68% 36.658 29.076 - 0.00% -
random/pr28071.c -16.12% 53.426 44.811 - 2.54% -
random/pr70614.c -12.64% 25.952 22.673 - -1.95% -
random/pr29433.cpp -9.06% 16.944 15.409 - 0.77% -
random/pr26854.c -7.11% 104.234 96.818 - -0.43% -
random/pr12850.cpp -6.79% 49.784 46.405 - -4.25% -
random/pr69609.c -5.30% 22.279 21.098 - 2.40% -
random/pr36262.c -3.83% 4.917 4.729 - 0.34% -
random/pr26854-2.c -2.98% 15.568 15.104 - 0.10% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -12.83% 940.46 MB 819.80 MB - -0.02% -
random/pr26854.c -4.91% 1.10 GB 1.05 GB - -0.74% -
random/pr26854-2.c -4.16% 366.73 MB 351.49 MB - 0.24% -
random/pr12850.cpp -2.54% 918.05 MB 894.71 MB - -0.01% -
random/pr69609.c -2.19% 518.59 MB 507.25 MB - 0.01% -
random/pr38518.c -2.08% 196.47 MB 192.38 MB - -0.78% -
random/pr36262.c -2.08% 196.46 MB 192.39 MB - -0.40% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf -39.47% 15.64 MB 9.47 MB - -0.01% -
random/pr39326.c/elf -5.42% 1.46 MB 1.38 MB - 0.00% -
random/pr12850.cpp/elf -4.92% 31.95 MB 30.38 MB - 0.03% -
random/pr26854-2.c/elf/sections/text -2.77% 318.54 KB 309.71 KB - 0.01% -
random/pr28071.c/elf/sections/text -2.59% 662.44 KB 645.28 KB - 0.00% -
random/pr29433.cpp/elf -2.21% 1.39 MB 1.36 MB - -2.45% -

Added Tests - size
random/empty.C/elf/sections/text
random/empty.c/elf/sections/text
random/pr36439.cpp/elf/sections/text

Report Time: 0.12s