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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: 1550.000
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) 12.0.0 20210510 (experimental) 66e5e0a08554c487f976e9e7bc0da1038769ae67
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 66e5e0a08554c487f976e9e7bc0da1038769ae67
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 1621327574000.66e5e0a08554c487f976e9e7bc0da1038769ae67 2021-05-19T02:18:08.078030 0:00:53.792167
Previous 1621188953000.ea21f32198432a490dd490696322838d94b3d3b2 2021-05-17T04:09:02.128571 0:00:51.015652
Baseline 1543509871000.7db9606762e24d4a32ce052efdfdcf3139a23afb 2018-11-30T15:48:32.034939 0:01:11.029051

Tests Summary

Status Group # # (B)
Performance Regressions 14 22
Performance Improvements 5 12
Added Tests 3 3
Unchanged Tests 284 269
Total Tests 306

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c 220.30% 7.874 25.220 - -77.50% -
random/pr38518.c 212.40% 8.051 25.151 - -77.63% -
random/pr29433.cpp 9.09% 3.240 3.535 - 18.04% -

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr38518.c 198.01% 234.35 MB 698.40 MB - -76.34% -
random/pr36262.c 197.92% 234.28 MB 697.95 MB - -76.34% -

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c/elf 387.35% 107.04 KB 521.66 KB - 3.59% -
random/pr38518.c/elf 387.35% 107.04 KB 521.66 KB - 3.59% -
random/pr36262.c/elf/sections/text 376.86% 104.15 KB 496.67 KB - 2.77% -
random/pr38518.c/elf/sections/text 376.86% 104.15 KB 496.67 KB - 2.77% -
random/pr36439.cpp/elf/sections/text 20.27% 106.65 KB 128.26 KB - 961.19% -
random/pr26854-2.c/elf/sections/text 11.22% 311.88 KB 346.88 KB - 6.38% -
random/pr36439.cpp/elf 4.24% 1.67 MB 1.74 MB - 10.52% -
random/pr26854-2.c/elf 3.71% 950.20 KB 985.46 KB - 0.85% -
random/pr39326.c/elf/sections/text 2.74% 301.17 KB 309.42 KB - -6.27% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c -5.21% 51.914 49.211 - 1.91% -
random/pr36291.cpp -4.14% 31.053 29.766 - -4.58% -
random/pr70614.c -2.77% 1.168 1.135 - 26.13% -
random/pr12850.cpp -2.44% 42.606 41.567 - 31.64% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp/elf/sections/text -27.77% 128.87 KB 93.08 KB - 174.36% -

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 31.64% 31.575 41.567 - -2.44% -
random/pr70614.c 26.13% 0.900 1.135 - -2.77% -
random/pr36439.cpp 24.48% 27.621 34.383 - 0.51% -
random/pr29433.cpp 18.04% 2.994 3.535 - 9.09% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 91.75% 676.55 MB 1.27 GB - -0.14% -
random/pr60243.c 14.84% 1.68 GB 1.93 GB - -0.04% -
random/pr29433.cpp 12.16% 334.67 MB 375.36 MB - 0.16% -
random/empty.C 9.67% 17.17 MB 18.83 MB - 0.00% -
random/pr12850.cpp 5.07% 568.06 MB 596.86 MB - -0.17% -
random/empty.c 4.31% 16.22 MB 16.92 MB - 0.00% -
random/pr36291.cpp 2.80% 482.77 MB 496.30 MB - 0.17% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text 961.19% 12.09 KB 128.26 KB - 20.27% -
random/pr12850.cpp/elf/sections/text 174.36% 33.93 KB 93.08 KB - -27.77% -
random/pr36439.cpp/elf 10.52% 1.57 MB 1.74 MB - 4.24% -
random/pr26854-2.c/elf/sections/text 6.38% 326.09 KB 346.88 KB - 11.22% -
random/pr12392.cpp/elf/sections/text 4.70% 386.45 KB 404.62 KB - 0.00% -
random/pr12850.cpp/elf 4.35% 3.28 MB 3.42 MB - -0.65% -
random/pr36262.c/elf 3.59% 503.58 KB 521.66 KB - 387.35% -
random/pr38518.c/elf 3.59% 503.58 KB 521.66 KB - 387.35% -
random/pr29433.cpp/elf 3.11% 89.03 KB 91.80 KB - 0.00% -
random/pr36262.c/elf/sections/text 2.77% 483.28 KB 496.67 KB - 376.86% -
random/pr38518.c/elf/sections/text 2.77% 483.28 KB 496.67 KB - 376.86% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c -77.63% 112.422 25.151 - 212.40% -
random/pr36262.c -77.50% 112.092 25.220 - 220.30% -
random/pr60243.c -66.21% 288.096 97.359 - 0.33% -
random/pr12392.cpp -24.84% 37.649 28.296 - -0.82% -
random/pr39326.c -4.82% 105.821 100.719 - 1.98% -
random/pr36291.cpp -4.58% 31.195 29.766 - -4.14% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c -76.34% 2.88 GB 697.95 MB - 197.92% -
random/pr38518.c -76.34% 2.88 GB 698.40 MB - 198.01% -
random/pr26854-2.c -34.71% 1.47 GB 980.69 MB - 0.08% -
random/pr12392.cpp -2.23% 808.50 MB 790.49 MB - -0.13% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -27.65% 955.34 KB 691.23 KB - 1.63% -
random/pr39326.c/elf/sections/text -6.27% 330.11 KB 309.42 KB - 2.74% -

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

Report Time: 0.14s
mem_bytes (bytes)
Name Current %
random/empty.C 18.83 MB -
random/empty.c 16.92 MB -
random/pr12392.cpp 790.49 MB -
random/pr12850.cpp 596.86 MB -
random/pr26854-2.c 980.69 MB -
random/pr29433.cpp 375.36 MB -
random/pr36262.c 697.95 MB 197.92%
random/pr36291.cpp 496.30 MB -
random/pr36439.cpp 452.31 MB -
random/pr38518.c 698.40 MB 198.01%
random/pr39326.c 1.27 GB -
random/pr60243.c 1.93 GB -
random/pr70614.c 61.58 MB -
Geometric Mean 344.24 MB 18.33%