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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 20201120 (experimental) 11d39d4b278efb4a0134f495d698c2cd764c06e4
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 11d39d4b278efb4a0134f495d698c2cd764c06e4
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 1605896127000.11d39d4b278efb4a0134f495d698c2cd764c06e4 2020-11-21T08:19:16.507158 0:00:51.126484
Previous 1605300136000.97741d2b31cd0f640e153afd363e45391919e4a6 2020-11-14T09:28:00.010968 0:01:21.065423
Baseline 1543509871000.7db9606762e24d4a32ce052efdfdcf3139a23afb 2018-11-30T15:48:32.034939 0:01:11.029051

Tests Summary

Status Group # # (B)
Performance Regressions 1 22
Performance Improvements 17 15
Added Tests 3 3
Unchanged Tests 285 266
Total Tests 306

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr60243.c 3.93% 93.625 97.307 - -66.22% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr38518.c -76.29% 29.352 6.958 - -93.81% -
random/pr36262.c -76.21% 29.116 6.925 - -93.82% -
random/pr70614.c -31.11% 1.229 0.847 - -5.93% -
random/pr39326.c -11.92% 70.451 62.052 - -41.36% -
random/pr36439.cpp -6.61% 35.460 33.116 - 19.90% -
random/pr26854-2.c -6.54% 54.275 50.727 - 5.05% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c -87.42% 2.91 GB 375.47 MB - -87.27% -
random/pr38518.c -87.41% 2.91 GB 375.47 MB - -87.28% -
random/pr60243.c -2.63% 1.99 GB 1.94 GB - 15.44% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c/elf -79.36% 520.48 KB 107.44 KB - -78.67% -
random/pr38518.c/elf -79.36% 520.48 KB 107.44 KB - -78.67% -
random/pr36262.c/elf/sections/text -78.90% 495.49 KB 104.55 KB - -78.37% -
random/pr38518.c/elf/sections/text -78.90% 495.49 KB 104.55 KB - -78.37% -
random/pr36439.cpp/elf/sections/text -17.54% 129.54 KB 106.82 KB - 783.78% -
random/pr39326.c/elf/sections/text -4.29% 311.27 KB 297.91 KB - -9.76% -
random/pr36439.cpp/elf -4.11% 1.74 MB 1.67 MB - 6.14% -
random/pr39326.c/elf -2.32% 719.54 KB 702.87 KB - -26.43% -

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/pr12392.cpp 36.92% 37.649 51.547 - 1.67% -
random/pr12850.cpp 32.08% 31.575 41.705 - -0.66% -
random/pr36439.cpp 19.90% 27.621 33.116 - -6.61% -
random/pr29433.cpp 19.40% 2.994 3.575 - 0.41% -
random/pr26854-2.c 5.05% 48.289 50.727 - -6.54% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 106.65% 676.55 MB 1.37 GB - 0.19% -
random/pr12392.cpp 26.89% 808.50 MB 1.00 GB - 0.09% -
random/pr60243.c 15.44% 1.68 GB 1.94 GB - -2.63% -
random/pr29433.cpp 11.89% 334.67 MB 374.46 MB - 0.55% -
random/empty.C 6.55% 17.17 MB 18.29 MB - 1.76% -
random/pr12850.cpp 4.08% 568.06 MB 591.24 MB - 0.39% -
random/empty.c 3.90% 16.22 MB 16.85 MB - 0.47% -
random/pr70614.c 3.49% 60.69 MB 62.80 MB - -0.12% -
random/pr36291.cpp 3.31% 482.77 MB 498.77 MB - 0.72% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text 783.78% 12.09 KB 106.82 KB - -17.54% -
random/pr12850.cpp/elf/sections/text 89.76% 33.93 KB 64.38 KB - -1.34% -
random/pr26854-2.c/elf/sections/text 10.68% 326.09 KB 360.90 KB - -1.65% -
random/pr36439.cpp/elf 6.14% 1.57 MB 1.67 MB - -4.11% -
random/pr12392.cpp/elf/sections/text 4.46% 386.45 KB 403.70 KB - 0.00% -
random/pr29433.cpp/elf 2.96% 89.03 KB 91.66 KB - 0.00% -
random/pr12850.cpp/elf 2.71% 3.28 MB 3.37 MB - -0.21% -
random/pr26854-2.c/elf 2.26% 977.16 KB 999.20 KB - -0.62% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c -93.82% 112.092 6.925 - -76.21% -
random/pr38518.c -93.81% 112.422 6.958 - -76.29% -
random/pr60243.c -66.22% 288.096 97.307 - 3.93% -
random/pr39326.c -41.36% 105.821 62.052 - -11.92% -
random/pr70614.c -5.93% 0.900 0.847 - -31.11% -
random/pr36291.cpp -2.14% 31.195 30.527 - -1.27% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c -87.28% 2.88 GB 375.47 MB - -87.41% -
random/pr36262.c -87.27% 2.88 GB 375.47 MB - -87.42% -
random/pr26854-2.c -18.83% 1.47 GB 1.19 GB - -1.01% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c/elf -78.67% 503.58 KB 107.44 KB - -79.36% -
random/pr38518.c/elf -78.67% 503.58 KB 107.44 KB - -79.36% -
random/pr36262.c/elf/sections/text -78.37% 483.28 KB 104.55 KB - -78.90% -
random/pr38518.c/elf/sections/text -78.37% 483.28 KB 104.55 KB - -78.90% -
random/pr39326.c/elf -26.43% 955.34 KB 702.87 KB - -2.32% -
random/pr39326.c/elf/sections/text -9.76% 330.11 KB 297.91 KB - -4.29% -

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 18.29 MB -
random/empty.c 16.85 MB -
random/pr12392.cpp 1.00 GB -
random/pr12850.cpp 591.24 MB -
random/pr26854-2.c 1.19 GB -
random/pr29433.cpp 374.46 MB -
random/pr36262.c 375.47 MB -87.42%
random/pr36291.cpp 498.77 MB -
random/pr36439.cpp 451.89 MB -
random/pr38518.c 375.47 MB -87.41%
random/pr39326.c 1.37 GB -
random/pr60243.c 1.94 GB -2.63%
random/pr70614.c 62.80 MB -
Geometric Mean 326.12 MB -27.29%