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: 1477.946
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.84
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: 263696144 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 20200930 (experimental) 7dbc7ad524a540e34ce25d120d0968f36c571bbb
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 7dbc7ad524a540e34ce25d120d0968f36c571bbb
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 1601492393000.7dbc7ad524a540e34ce25d120d0968f36c571bbb 2020-09-30T23:56:32.515954 0:01:33.379107
Previous 1601520468000.2c5499b57cf4a68ebc8decce90d3eb1e281c31a9 2020-10-01T10:48:12.040560 0:01:33.498301
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.472364


Tests Summary

Status Group # # (B)
Performance Regressions 4 10
Performance Improvements 0 14
Added Tests 3 3
Unchanged Tests 263 243
Total Tests 270

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr38518.c 6.16% 31.669 33.618 - -0.86% -
random/pr12392.cpp 4.83% 35.132 36.828 - -5.22% -
random/pr36439.cpp 3.44% 33.853 35.016 - 5.60% -
random/pr36262.c 2.50% 33.456 34.291 - 1.95% -

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/pr29433.cpp 6.64% 3.947 4.209 - 0.69% -
random/pr28071.c 5.80% 68.825 72.816 - 0.01% -
random/pr36439.cpp 5.60% 33.160 35.016 - 3.44% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 126.55% 575.34 MB 1.27 GB - -0.03% -
random/pr29433.cpp 14.10% 330.88 MB 377.54 MB - 0.00% -
random/empty.C 5.95% 17.34 MB 18.38 MB - 0.00% -
random/empty.c 4.76% 16.24 MB 17.01 MB - 0.00% -
random/pr12850.cpp 4.73% 569.88 MB 596.84 MB - -0.08% -
random/pr36291.cpp 3.96% 480.34 MB 499.36 MB - -0.05% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr26854-2.c/elf/sections/text 2.21% 323.69 KB 330.85 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c -34.03% 104.650 69.033 - -0.58% -
random/pr60243.c -27.74% 117.203 84.688 - 0.38% -
random/pr26854-2.c -5.60% 57.018 53.823 - -0.23% -
random/pr12392.cpp -5.22% 38.857 36.828 - 4.83% -
random/pr36291.cpp -4.13% 29.982 28.743 - 0.33% -
random/pr12850.cpp -2.10% 41.140 40.277 - 1.19% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp -8.12% 908.87 MB 835.03 MB - 0.01% -
random/pr28071.c -6.21% 1.32 GB 1.23 GB - 0.00% -
random/pr26854-2.c -5.08% 1.45 GB 1.38 GB - -0.00% -
random/pr60243.c -4.86% 2.10 GB 2.00 GB - 0.00% -
random/pr70614.c -4.27% 62.45 MB 59.78 MB - -0.83% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -23.13% 964.91 KB 741.73 KB - 0.00% -
random/pr39326.c/elf/sections/text -3.12% 339.86 KB 329.27 KB - 0.00% -
random/pr12392.cpp/elf/sections/text -2.40% 411.00 KB 401.12 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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