Fields

hardware None
os_version None

Parameters

cpu Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 48 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 128
On-line CPU(s) list: 0-127
Vendor ID: AuthenticAMD
Model name: AMD EPYC 7702 64-Core Processor
CPU family: 23
Model: 49
Thread(s) per core: 2
Core(s) per socket: 64
Socket(s): 1
Stepping: 0
Frequency boost: enabled
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.40
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 rapl 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 v_spec_ctrl umip rdpid overflow_recov succor smca
Virtualization: AMD-V
L1d cache: 2 MiB (64 instances)
L1i cache: 2 MiB (64 instances)
L2 cache: 32 MiB (64 instances)
L3 cache: 256 MiB (16 instances)
NUMA node(s): 1
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
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
memory MemTotal: 263689112 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) 8.4.1 20200827 7edec20c8f9a97b3c036158212b76211b7fe42df
Copyright (C) 2018 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 7edec20c8f9a97b3c036158212b76211b7fe42df
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-8.Ofast test results

Run Order Start Time Duration
Current 1598487458000.7edec20c8f9a97b3c036158212b76211b7fe42df 2020-08-27T20:54:33.951837 0:01:25.788078
Previous 1582935452000.786712503de0bb851b62eca1e19ac1e25c5c386c 2020-02-29T08:16:49.238399 0:01:23.457748
Baseline 1578183366000.7daeb907afcd409b116b388a2c2cfba005f5623c 2020-01-05T03:02:54.069530 0:01:25.761260


Tests Summary

Status Group # # (B)
Performance Regressions 1 1
Performance Improvements 4 6
Added Tests 2 2
Unchanged Tests 245 243
Total Tests 252

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/empty.C 2.21% 16.99 MB 17.37 MB - 2.99% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr39326.c -4.30% 101.326 96.969 - -5.57% -
random/pr36291.cpp -2.76% 27.492 26.734 - -2.66% -
random/pr29433.cpp -2.23% 3.854 3.768 - -2.04% -
random/pr12850.cpp -2.13% 30.580 29.929 - -5.34% -

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

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.C 2.99% 16.86 MB 17.37 MB - 2.21% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr26854-2.c -9.64% 48.954 44.232 - -0.54% -
random/pr39326.c -5.57% 102.686 96.969 - -4.30% -
random/pr12850.cpp -5.34% 31.616 29.929 - -2.13% -
random/pr36291.cpp -2.66% 27.464 26.734 - -2.76% -
random/pr36498.cpp -2.20% 15.210 14.875 - -1.71% -
random/pr29433.cpp -2.04% 3.847 3.768 - -2.23% -

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


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