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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: 1496.355
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
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 20200107 (experimental) 3b6f08b506915cc9e1d0f9f598dba2acd1928fef
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 3b6f08b506915cc9e1d0f9f598dba2acd1928fef
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 1578364696000.3b6f08b506915cc9e1d0f9f598dba2acd1928fef 2020-01-07T07:28:03.089359 0:01:32.026749
Previous 1578330640000.a6b8833f34a5c8799cc5a3282fdde0c1777a8dca 2020-01-06T19:49:35.463377 0:01:33.792750
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.472364

Tests Summary

Status Group # # (B)
Performance Regressions 6 6
Performance Improvements 13 21
Added Tests 2 2
Unchanged Tests 249 241
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr38518.c 2.53% 33.586 34.436 - 1.55% -
random/pr26854-2.c 2.47% 55.389 56.759 - -0.45% -

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr36439.cpp/elf 11.56% 1.74 MB 1.95 MB - 9.96% -
random/pr12850.cpp/elf/sections/text 9.90% 91.66 KB 100.74 KB - 10.39% -
random/pr36439.cpp/elf/sections/text 7.78% 122.95 KB 132.51 KB - 7.42% -
random/pr29433.cpp/elf 2.90% 91.47 KB 94.12 KB - 2.86% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp -46.38% 36.120 19.368 - -50.16% -
random/pr36439.cpp -8.14% 32.660 30.003 - -9.52% -
random/pr28071.c -4.77% 67.389 64.174 - -6.76% -
random/pr36262.c -3.07% 34.711 33.645 - 0.03% -
random/pr36498.cpp -2.99% 15.599 15.133 - -7.06% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr28071.c -56.79% 1.23 GB 545.00 MB - -59.58% -
random/pr12392.cpp -41.20% 835.29 MB 491.17 MB - -45.96% -
random/pr36439.cpp -11.42% 447.51 MB 396.40 MB - -12.43% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr28071.c/elf/sections/text -37.48% 810.08 KB 506.47 KB - -37.48% -
random/pr12392.cpp/elf/sections/text -26.76% 410.40 KB 300.56 KB - -26.87% -
random/pr12392.cpp/elf -10.37% 1.10 MB 1005.59 KB - -10.42% -
random/pr28071.c/elf -4.44% 1.28 MB 1.22 MB - -4.44% -
random/pr36498.cpp/elf/sections/text -2.38% 413.63 KB 403.80 KB - -3.00% -

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

Run-Over-Baseline Changes Detail

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c 2.01% 1.435 1.464 - 0.11% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.C 3.15% 17.34 MB 17.89 MB - 0.00% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp/elf/sections/text 10.39% 91.26 KB 100.74 KB - 9.90% -
random/pr36439.cpp/elf 9.96% 1.77 MB 1.95 MB - 11.56% -
random/pr36439.cpp/elf/sections/text 7.42% 123.36 KB 132.51 KB - 7.78% -
random/pr29433.cpp/elf 2.86% 91.50 KB 94.12 KB - 2.90% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp -50.16% 38.857 19.368 - -46.38% -
random/pr60243.c -29.57% 117.203 82.549 - -0.00% -
random/pr36439.cpp -9.52% 33.160 30.003 - -8.14% -
random/pr36498.cpp -7.06% 16.283 15.133 - -2.99% -
random/pr28071.c -6.76% 68.825 64.174 - -4.77% -
random/pr12850.cpp -4.14% 41.140 39.438 - 0.70% -
random/pr36291.cpp -3.89% 29.982 28.814 - -0.40% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -59.58% 1.32 GB 545.00 MB - -56.79% -
random/pr12392.cpp -45.96% 908.87 MB 491.17 MB - -41.20% -
random/pr36439.cpp -12.43% 452.65 MB 396.40 MB - -11.42% -
random/pr26854-2.c -5.17% 1.45 GB 1.37 GB - -0.00% -
random/pr60243.c -3.44% 2.10 GB 2.03 GB - -0.02% -
random/pr36498.cpp -2.68% 357.54 MB 347.95 MB - -1.38% -
random/pr36262.c -2.29% 2.88 GB 2.81 GB - -0.09% -
random/pr70614.c -2.24% 62.45 MB 61.05 MB - 0.00% -
random/pr38518.c -2.23% 2.88 GB 2.81 GB - -0.14% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c/elf/sections/text -37.48% 810.08 KB 506.47 KB - -37.48% -
random/pr12392.cpp/elf/sections/text -26.87% 411.00 KB 300.56 KB - -26.76% -
random/pr12392.cpp/elf -10.42% 1.10 MB 1005.59 KB - -10.37% -
random/pr28071.c/elf -4.44% 1.28 MB 1.22 MB - -4.44% -
random/pr36498.cpp/elf/sections/text -3.00% 416.30 KB 403.80 KB - -2.38% -

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

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