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: 1436.981
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.83
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: 263729312 kB

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 20200914 (experimental) 919858077f4b768c8472f29b977edf0aa6e0f1e5
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 919858077f4b768c8472f29b977edf0aa6e0f1e5
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
Filter

benzen.gcc-trunk.Ofast test results

Run Order Start Time Duration
Current 1600042583000.919858077f4b768c8472f29b977edf0aa6e0f1e5 2020-09-14T07:24:47.442564 0:01:33.260761
Previous 1599790418000.848e74bea1e8031925d3efe2d85b555a3cf8db38 2020-09-11T07:24:57.706157 0:01:33.141987
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.472364


Tests Summary

Status Group # # (B)
Performance Regressions 0 9
Performance Improvements 1 14
Added Tests 3 3
Unchanged Tests 266 244
Total Tests 270

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36291.cpp -3.72% 29.558 28.459 - -5.08% -

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

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c 7.38% 68.825 73.906 - 0.33% -
random/pr29433.cpp 5.68% 3.947 4.171 - -0.20% -
random/pr36439.cpp 3.37% 33.160 34.277 - 1.79% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 90.41% 575.34 MB 1.07 GB - -0.07% -
random/pr29433.cpp 14.08% 330.88 MB 377.46 MB - 0.02% -
random/empty.C 5.20% 17.34 MB 18.25 MB - 0.00% -
random/pr36291.cpp 4.22% 480.34 MB 500.63 MB - 0.00% -
random/pr12850.cpp 4.10% 569.88 MB 593.25 MB - 0.04% -
random/empty.c 3.95% 16.24 MB 16.88 MB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -28.51% 117.203 83.784 - -0.74% -
random/pr39326.c -20.53% 104.650 83.166 - -1.17% -
random/pr12392.cpp -9.89% 38.857 35.014 - -0.82% -
random/pr26854-2.c -8.03% 57.018 52.437 - -1.76% -
random/pr36291.cpp -5.08% 29.982 28.459 - -3.72% -
random/pr70614.c -2.35% 1.435 1.401 - -0.27% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp -8.25% 908.87 MB 833.93 MB - -0.00% -
random/pr28071.c -6.48% 1.32 GB 1.23 GB - 0.03% -
random/pr60243.c -4.86% 2.10 GB 2.00 GB - 0.00% -
random/pr70614.c -4.84% 62.45 MB 59.42 MB - -0.01% -
random/pr26854-2.c -2.10% 1.45 GB 1.42 GB - 0.01% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -17.32% 964.91 KB 797.77 KB - -0.20% -
random/pr39326.c/elf/sections/text -5.98% 339.86 KB 319.55 KB - -0.62% -
random/pr12392.cpp/elf/sections/text -2.06% 411.00 KB 402.54 KB - 0.00% -

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


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