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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) 2.31
Copyright (C) 2018 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 20190428 (experimental) c5beaef0c93b10f92836aadfcaf18cdab6a00abe
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 c5beaef0c93b10f92836aadfcaf18cdab6a00abe
glibc GNU C Library (GNU libc) stable release version 2.27 (git 3260f6ce87b7).
Copyright (C) 2018 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 8.1.1 20180614 [gcc-8-branch revision 261584].
libc ABIs: UNIQUE IFUNC
For bug reporting instructions, please see:
<http://bugs.opensuse.org>.
glibc_location /lib64/libc.so.6
ld GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.31
options None
reason None
uname Linux zenith 4.18.7-1-default #1 SMP PREEMPT Sun Sep 9 10:26:20 UTC 2018 (952d850) x86_64 x86_64 x86_64 GNU/Linux
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zenith.gcc-trunk.Ofast test results

Run Order Start Time Duration
Current 1556410580000.c5beaef0c93b10f92836aadfcaf18cdab6a00abe 2019-04-28T07:54:02.484502 0:01:14.145532
Previous 1556654257000.ff8e40efb69248d66881fd3dd1e19d50eb3d6228 2019-05-01T00:44:06.803813 0:01:10.569492
Baseline 1543348665000.9b92780c8a3bee3cb13440f477cc2a6aef2ce191 2018-11-27T23:34:44.160312 0:01:14.615416

Tests Summary

Status Group # # (B)
Performance Regressions 5 13
Performance Improvements 2 12
Added Tests 3 3
Unchanged Tests 296 278
Total Tests 306

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr29433.cpp 21.04% 2.995 3.625 - 20.64% -
random/pr36291.cpp 5.05% 30.940 32.502 - 4.77% -
random/pr12850.cpp 3.93% 40.193 41.773 - 32.28% -
random/pr39326.c 2.96% 104.606 107.706 - 4.10% -
random/pr36498.cpp 2.76% 18.505 19.015 - 25.21% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c -2.98% 48.956 47.495 - -2.00% -
random/pr36262.c -2.46% 98.535 96.114 - -15.08% -

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 32.28% 31.580 41.773 - 3.93% -
random/pr36498.cpp 25.21% 15.187 19.015 - 2.76% -
random/pr29433.cpp 20.64% 3.004 3.625 - 21.04% -
random/pr36439.cpp 16.31% 27.756 32.283 - -0.39% -
random/pr36291.cpp 4.77% 31.021 32.502 - 5.05% -
random/pr39326.c 4.10% 103.467 107.706 - 2.96% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr44563.c 5.21% 1.31 GB 1.38 GB - 0.12% -
random/pr39326.c 2.65% 676.54 MB 694.48 MB - -0.01% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp/elf/sections/text 21.39% 383.31 KB 465.30 KB - 0.00% -
random/pr36439.cpp/elf 11.87% 1.57 MB 1.76 MB - 0.00% -
random/pr36498.cpp/elf 10.35% 1.55 MB 1.71 MB - 0.01% -
random/pr12850.cpp/elf 9.34% 3.28 MB 3.59 MB - 0.00% -
random/pr39326.c/elf/sections/text 3.96% 330.11 KB 343.19 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -16.15% 290.828 243.853 - -1.31% -
random/pr36262.c -15.08% 113.184 96.114 - -2.46% -
random/pr38518.c -14.72% 112.600 96.025 - -1.97% -
random/pr12392.cpp -9.31% 37.423 33.937 - 0.05% -
random/pr70614.c -4.59% 0.901 0.859 - -0.49% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp -6.54% 808.32 MB 755.49 MB - -0.22% -
random/pr36439.cpp -3.84% 453.24 MB 435.83 MB - -0.04% -
random/pr36498.cpp -3.07% 385.14 MB 373.32 MB - 0.06% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text -54.28% 12.09 KB 5.53 KB - 0.00% -
random/pr12850.cpp/elf/sections/text -17.82% 33.93 KB 27.88 KB - 0.11% -
random/pr69609.c/elf -2.92% 1.32 MB 1.28 MB - 0.00% -
random/pr69609.c/elf/sections/text -2.33% 486.89 KB 475.53 KB - 0.00% -

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