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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: 1422.421
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
Run Info

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.32.0.20190909-8
Copyright (C) 2019 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) 10.0.0 20191112 (experimental) 219d7929fd76e41598ad761b0aac33c941dfb3d6
Copyright (C) 2019 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 219d7929fd76e41598ad761b0aac33c941dfb3d6
glibc GNU C Library (GNU libc) stable release version 2.30 (git 0a8262a1b2).
Copyright (C) 2019 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 9.2.1 20190903 [gcc-9-branch revision 275330].
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) 2.32.0.20190909-8
options None
reason None
uname Linux benzen 5.3.6-1-default #1 SMP Sun Oct 13 07:19:36 UTC 2019 (519ea7b) x86_64 x86_64 x86_64 GNU/Linux
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benzen.gcc-trunk.Ofast test results

Run Order Start Time Duration
Current 1573534649000.219d7929fd76e41598ad761b0aac33c941dfb3d6 2019-11-12T09:35:01.495905 0:01:29.444120
Previous 1573788529000.fbbadf0018292a93d1d19dcf3c4f439b952abf86 2019-11-15T07:29:56.565928 0:01:29.373087
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.472364

Tests Summary

Status Group # # (B)
Performance Regressions 15 3
Performance Improvements 5 9
Added Tests 3 3
Unchanged Tests 247 255
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr60243.c 11.74% 75.275 84.112 - -28.23% -
random/pr29433.cpp 9.93% 3.599 3.956 - 0.24% -

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp 48.99% 238.66 MB 355.59 MB - -0.54% -
random/pr36439.cpp 43.86% 314.50 MB 452.44 MB - -0.05% -
random/pr12850.cpp 41.99% 400.29 MB 568.37 MB - -0.27% -
random/pr36291.cpp 39.71% 343.05 MB 479.28 MB - -0.22% -
random/pr39326.c 18.08% 487.61 MB 575.78 MB - 0.08% -
random/pr12392.cpp 16.42% 780.88 MB 909.12 MB - 0.03% -
random/pr28071.c 15.45% 1.14 GB 1.31 GB - -0.17% -
random/pr70614.c 14.87% 54.55 MB 62.66 MB - 0.34% -
random/pr60243.c 10.90% 1.83 GB 2.03 GB - -3.38% -
random/pr29433.cpp 8.81% 304.13 MB 330.92 MB - 0.01% -
random/pr26854-2.c 5.12% 1.38 GB 1.45 GB - 0.16% -
random/pr36262.c 4.34% 2.77 GB 2.89 GB - 0.36% -
random/pr38518.c 4.33% 2.77 GB 2.89 GB - 0.43% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp -8.75% 42.982 39.221 - -4.66% -
random/pr36498.cpp -6.79% 16.598 15.470 - -4.99% -
random/pr12392.cpp -4.84% 39.937 38.005 - -2.19% -
random/pr36291.cpp -4.02% 30.061 28.853 - -3.77% -
random/pr38518.c -2.17% 33.482 32.755 - -3.41% -

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 4.42% 33.160 34.625 - -0.45% -
random/pr36262.c 2.26% 33.635 34.395 - -1.54% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.c 2.86% 16.24 MB 16.70 MB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -28.23% 117.203 84.112 - 11.74% -
random/pr36498.cpp -4.99% 16.283 15.470 - -6.79% -
random/pr12850.cpp -4.66% 41.140 39.221 - -8.75% -
random/pr36291.cpp -3.77% 29.982 28.853 - -4.02% -
random/pr38518.c -3.41% 33.910 32.755 - -2.17% -
random/pr28071.c -2.70% 68.825 66.970 - -0.47% -
random/pr12392.cpp -2.19% 38.857 38.005 - -4.84% -
random/pr39326.c -2.06% 104.650 102.496 - -0.86% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -3.38% 2.10 GB 2.03 GB - 10.90% -

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

Report Time: 0.11s
mem_bytes (bytes)
Name Current %
random/empty.c 16.70 MB -
random/empty.C 17.58 MB -
random/pr12392.cpp 909.12 MB 16.42%
random/pr12850.cpp 568.37 MB 41.99%
random/pr26854-2.c 1.45 GB 5.12%
random/pr28071.c 1.31 GB 15.45%
random/pr29433.cpp 330.92 MB 8.81%
random/pr36262.c 2.89 GB 4.34%
random/pr36291.cpp 479.28 MB 39.71%
random/pr36439.cpp 452.44 MB 43.86%
random/pr36498.cpp 355.59 MB 48.99%
random/pr38518.c 2.89 GB 4.33%
random/pr39326.c 575.78 MB 18.08%
random/pr60243.c 2.03 GB 10.90%
random/pr70614.c 62.66 MB 14.87%
Geometric Mean 443.63 MB 17.19%