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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) 2.36.1.20210326-4
Copyright (C) 2021 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) 12.0.0 20210826 (experimental) 2ed0fc960ca566917427fab59c4f894d15ab2bff
Copyright (C) 2021 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 2ed0fc960ca566917427fab59c4f894d15ab2bff
glibc GNU C Library (GNU libc) release release version 2.33 (git 9826b03b74).
Copyright (C) 2021 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 11.1.1 20210510 [revision 23855a176609fe8dda6abaf2b21846b4517966eb].
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) 2.36.1.20210326-4
options None
reason None
uname Linux benzen 5.12.9-1-default #1 SMP Thu Jun 3 07:44:58 UTC 2021 (f17eb01) x86_64 x86_64 x86_64 GNU/Linux
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benzen.gcc-trunk-honza.Ofast test results

Run Order Start Time Duration
Current 1629995429000.2ed0fc960ca566917427fab59c4f894d15ab2bff 2021-08-27T20:08:40.035147 0:01:23.613488
Previous 1629990147000.9e55cc83b4a8e9dc3b0e3ebd38fb84fba9a71862 2021-08-27T10:09:12.147542 0:01:23.837471
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785

Tests Summary

Status Group # # (B)
Performance Regressions 0 17
Performance Improvements 2 13
Added Tests 3 3
Unchanged Tests 265 237
Total Tests 270

Run-Over-Run Changes Detail

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp -2.62% 43.092 41.965 - 4.31% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp/elf/sections/text -30.27% 131.69 KB 91.83 KB - 0.60% -

Added Tests - size
random/empty.C/elf/sections/text
random/empty.c/elf/sections/text
random/pr29433.cpp/elf/sections/text

Run-Over-Baseline Changes Detail

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp 14.88% 32.509 37.345 - -1.23% -
random/pr12850.cpp 4.31% 40.232 41.965 - -2.62% -
random/pr38518.c 2.85% 34.036 35.006 - 0.54% -
random/pr36291.cpp 2.37% 28.849 29.532 - -1.23% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 129.65% 572.54 MB 1.28 GB - 0.08% -
random/pr29433.cpp 10.66% 330.98 MB 366.27 MB - 0.00% -
random/empty.C 8.51% 17.53 MB 19.02 MB - 0.00% -
random/empty.c 6.63% 16.43 MB 17.52 MB - 0.00% -
random/pr12850.cpp 4.52% 571.05 MB 596.88 MB - -0.36% -
random/pr36291.cpp 3.22% 482.21 MB 497.72 MB - -0.50% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text 16.86% 123.16 KB 143.93 KB - -1.34% -
random/pr26854-2.c/elf/sections/text 7.23% 323.72 KB 347.13 KB - 0.00% -
random/pr36262.c/elf 6.49% 516.41 KB 549.95 KB - 0.00% -
random/pr38518.c/elf 6.49% 516.41 KB 549.95 KB - 0.00% -
random/pr36262.c/elf/sections/text 3.53% 494.35 KB 511.81 KB - 0.00% -
random/pr38518.c/elf/sections/text 3.53% 494.35 KB 511.81 KB - 0.00% -
random/pr36439.cpp/elf 2.07% 1.74 MB 1.78 MB - 0.52% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -41.90% 1.422 0.826 - -0.23% -
random/pr60243.c -17.38% 120.115 99.235 - 0.28% -
random/pr29433.cpp -15.67% 3.938 3.321 - -0.03% -
random/pr12392.cpp -13.37% 39.689 34.384 - -0.58% -
random/pr26854-2.c -12.66% 58.105 50.751 - 0.71% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c -76.36% 2.91 GB 703.25 MB - -0.12% -
random/pr38518.c -76.35% 2.91 GB 703.61 MB - -0.07% -
random/pr12392.cpp -42.57% 912.91 MB 524.30 MB - 0.04% -
random/pr26854-2.c -33.47% 1.45 GB 987.48 MB - 0.07% -
random/pr60243.c -8.57% 2.11 GB 1.93 GB - -1.51% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -28.58% 964.88 KB 689.12 KB - 0.00% -
random/pr39326.c/elf/sections/text -9.53% 339.84 KB 307.45 KB - 0.00% -
random/pr29433.cpp/elf -4.28% 91.50 KB 87.59 KB - 0.00% -

Added Tests - size
random/empty.C/elf/sections/text
random/empty.c/elf/sections/text
random/pr29433.cpp/elf/sections/text

Report Time: 0.08s