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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: 43 bits physical, 48 bits virtual
CPU(s): 12
On-line CPU(s) list: 0-11
Thread(s) per core: 2
Core(s) per socket: 6
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 23
Model: 1
Model name: AMD Ryzen 5 1600 Six-Core Processor
Stepping: 1
Frequency boost: enabled
CPU MHz: 2800.000
CPU max MHz: 3200.0000
CPU min MHz: 1550.0000
BogoMIPS: 6387.74
Virtualization: AMD-V
L1d cache: 192 KiB
L1i cache: 384 KiB
L2 cache: 3 MiB
L3 cache: 16 MiB
NUMA node0 CPU(s): 0-11
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, STIBP disabled, 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 skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate ssbd vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca sme sev
memory MemTotal: 16285268 kB
Run Info

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 20210217 (experimental) 07daf62d9a67845362be462a0cb68ef4a15f048e
Copyright (C) 2021 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 07daf62d9a67845362be462a0cb68ef4a15f048e
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 zenith 5.7.9-1-default #1 SMP Thu Jul 16 09:40:08 UTC 2020 (a010166) x86_64 x86_64 x86_64 GNU/Linux
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zenith.gcc-trunk-honza.Ofast test results

Run Order Start Time Duration
Current 1613573582000.07daf62d9a67845362be462a0cb68ef4a15f048e 2021-02-17T21:29:48.463197 0:01:19.987102
Previous 1611830210000.38e966646ef2907fa00b159bbe35040c69b14d1b 2021-01-28T18:27:46.196888 0:01:20.098737
Baseline 1543509871000.7db9606762e24d4a32ce052efdfdcf3139a23afb 2018-11-30T15:48:32.034939 0:01:11.029051

Tests Summary

Status Group # # (B)
Performance Regressions 2 22
Performance Improvements 10 12
Added Tests 3 3
Unchanged Tests 291 269
Total Tests 306

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr29433.cpp 9.20% 3.264 3.564 - 19.02% -
random/pr36439.cpp 3.14% 36.085 37.218 - 34.75% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp -42.62% 49.987 28.684 - -23.81% -
random/pr70614.c -26.59% 1.152 0.846 - -6.06% -
random/pr38518.c -9.88% 28.089 25.313 - -77.48% -
random/pr36262.c -9.58% 28.228 25.524 - -77.23% -
random/pr26854-2.c -7.79% 54.367 50.132 - 3.82% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr38518.c -77.25% 2.93 GB 683.43 MB - -76.85% -
random/pr36262.c -77.24% 2.93 GB 683.85 MB - -76.82% -
random/pr26854-2.c -34.40% 1.46 GB 980.16 MB - -34.75% -
random/pr12392.cpp -9.89% 878.34 MB 791.45 MB - -2.11% -
random/pr70614.c -2.05% 62.31 MB 61.04 MB - 0.57% -

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/pr12850.cpp 35.54% 31.575 42.797 - 0.82% -
random/pr36439.cpp 34.75% 27.621 37.218 - 3.14% -
random/pr29433.cpp 19.02% 2.994 3.564 - 9.20% -
random/pr26854-2.c 3.82% 48.289 50.132 - -7.79% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 92.67% 676.55 MB 1.27 GB - -0.63% -
random/pr60243.c 14.71% 1.68 GB 1.92 GB - -0.88% -
random/pr29433.cpp 12.34% 334.67 MB 375.96 MB - 0.63% -
random/empty.C 8.17% 17.17 MB 18.57 MB - 0.42% -
random/pr12850.cpp 4.43% 568.06 MB 593.22 MB - -0.01% -
random/empty.c 3.97% 16.22 MB 16.86 MB - 0.44% -
random/pr36291.cpp 2.86% 482.77 MB 496.59 MB - -0.07% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text 973.04% 12.09 KB 129.70 KB - 0.00% -
random/pr12850.cpp/elf/sections/text 287.05% 33.93 KB 131.32 KB - 0.00% -
random/pr36439.cpp/elf 10.20% 1.57 MB 1.74 MB - 0.00% -
random/pr36262.c/elf 9.00% 503.58 KB 548.92 KB - 0.04% -
random/pr38518.c/elf 9.00% 503.58 KB 548.92 KB - 0.04% -
random/pr36262.c/elf/sections/text 8.41% 483.28 KB 523.94 KB - 0.05% -
random/pr38518.c/elf/sections/text 8.41% 483.28 KB 523.94 KB - 0.05% -
random/pr12850.cpp/elf 5.65% 3.28 MB 3.47 MB - 0.00% -
random/pr26854-2.c/elf/sections/text 4.74% 326.09 KB 341.55 KB - -1.54% -
random/pr12392.cpp/elf/sections/text 4.19% 386.45 KB 402.65 KB - 0.00% -
random/pr29433.cpp/elf 2.96% 89.03 KB 91.66 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c -77.48% 112.422 25.313 - -9.88% -
random/pr36262.c -77.23% 112.092 25.524 - -9.58% -
random/pr60243.c -67.71% 288.096 93.024 - 1.22% -
random/pr12392.cpp -23.81% 37.649 28.684 - -42.62% -
random/pr39326.c -9.03% 105.821 96.268 - -1.29% -
random/pr70614.c -6.06% 0.900 0.846 - -26.59% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c -76.85% 2.88 GB 683.43 MB - -77.25% -
random/pr36262.c -76.82% 2.88 GB 683.85 MB - -77.24% -
random/pr26854-2.c -34.75% 1.47 GB 980.16 MB - -34.40% -
random/pr12392.cpp -2.11% 808.50 MB 791.45 MB - -9.89% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -27.64% 955.34 KB 691.32 KB - -0.13% -
random/pr39326.c/elf/sections/text -6.24% 330.11 KB 309.52 KB - -0.03% -

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 18.57 MB -
random/empty.c 16.86 MB -
random/pr12392.cpp 791.45 MB -9.89%
random/pr12850.cpp 593.22 MB -
random/pr26854-2.c 980.16 MB -34.40%
random/pr29433.cpp 375.96 MB -
random/pr36262.c 683.85 MB -77.24%
random/pr36291.cpp 496.59 MB -
random/pr36439.cpp 447.41 MB -
random/pr38518.c 683.43 MB -77.25%
random/pr39326.c 1.27 GB -
random/pr60243.c 1.92 GB -
random/pr70614.c 61.04 MB -2.05%
Geometric Mean 342.17 MB -23.68%