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) 2.37.20211112-3
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) 8.5.0
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 eafe83f2f20ef0c1e7703c361ba314b44574523c
glibc GNU C Library (GNU libc) stable release version 2.35 (git f94f6d8a35).
Copyright (C) 2022 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 11.2.1 20220103 [revision d4a1d3c4b377f1d4acb34fe1b55b5088a3f293f6].
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) 2.37.20211112-3
options None
reason None
uname Linux benzen 5.16.10-1-default #1 SMP PREEMPT Thu Feb 17 05:36:42 UTC 2022 (fc3f7ab) x86_64 x86_64 x86_64 GNU/Linux
Filter

benzen.gcc-8.Ofast test results

Run Order Start Time Duration
Current 1620980543000.eafe83f2f20ef0c1e7703c361ba314b44574523c 2022-06-14T02:48:21.977644 0:01:30.896102
Previous 1618705079000.9a37e78d854a90c43685ca06870d86e36f8fa4b4 2021-04-19T02:14:22.396206 0:01:28.813397
Baseline 1578183366000.7daeb907afcd409b116b388a2c2cfba005f5623c 2020-01-05T03:02:54.069530 0:01:25.761260


Tests Summary

Status Group # # (B)
Performance Regressions 2 2
Performance Improvements 5 8
Added Tests 2 2
Unchanged Tests 243 240
Total Tests 252

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr38518.c 2.98% 135.380 139.417 - 2.89% -
random/pr36262.c 2.21% 135.289 138.279 - 2.69% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr28071.c -2.20% 69.786 68.251 - -1.08% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/empty.C -2.35% 17.49 MB 17.08 MB - 1.27% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr29433.cpp/elf -4.56% 89.52 KB 85.43 KB - -4.56% -
random/empty.C/elf -3.33% 960.00 B 928.00 B - -3.33% -
random/empty.c/elf -3.33% 960.00 B 928.00 B - -3.33% -

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

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c 2.89% 135.496 139.417 - 2.98% -
random/pr36262.c 2.69% 134.652 138.279 - 2.21% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -42.48% 1.318 0.758 - -0.08% -
random/pr29433.cpp -22.59% 3.847 2.978 - -0.87% -
random/pr26854-2.c -8.85% 48.954 44.619 - 1.89% -
random/pr12850.cpp -3.18% 31.616 30.611 - 0.13% -
random/pr36291.cpp -3.11% 27.464 26.611 - -0.32% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr29433.cpp/elf -4.56% 89.52 KB 85.43 KB - -4.56% -
random/empty.C/elf -3.33% 960.00 B 928.00 B - -3.33% -
random/empty.c/elf -3.33% 960.00 B 928.00 B - -3.33% -

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


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