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Machine Info

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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: 1482.030
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.49
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: 263729316 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 20191113 (experimental) 00bb511c162e8853b26943bd14212f69324d1f65
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 00bb511c162e8853b26943bd14212f69324d1f65
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 1573604185000.00bb511c162e8853b26943bd14212f69324d1f65 2019-11-13T07:30:28.838286 0:01:32.058789
Previous 1573534649000.219d7929fd76e41598ad761b0aac33c941dfb3d6 2019-11-12T09:35:01.495905 0:01:29.444120
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.472364

Tests Summary

Status Group # # (B)
Performance Regressions 9 4
Performance Improvements 15 15
Added Tests 3 3
Unchanged Tests 243 248
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp 7.80% 15.470 16.677 - 2.41% -
random/pr12850.cpp 7.30% 39.221 42.085 - 2.30% -
random/pr29433.cpp 5.10% 3.956 4.158 - 5.35% -
random/pr36291.cpp 4.36% 28.853 30.110 - 0.43% -
random/pr12392.cpp 3.73% 38.005 39.422 - 1.45% -
random/pr36439.cpp 3.32% 34.625 35.774 - 7.88% -
random/pr38518.c 3.14% 32.755 33.785 - -0.37% -
random/pr39326.c 2.55% 102.496 105.114 - 0.44% -
random/pr26854-2.c 2.31% 56.327 57.627 - 1.07% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr60243.c -7.59% 84.112 77.730 - -33.68% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp -33.17% 355.59 MB 237.64 MB - -33.53% -
random/pr36439.cpp -30.61% 452.44 MB 313.95 MB - -30.64% -
random/pr12850.cpp -29.84% 568.37 MB 398.74 MB - -30.03% -
random/pr36291.cpp -28.57% 479.28 MB 342.34 MB - -28.73% -
random/pr39326.c -15.26% 575.78 MB 487.91 MB - -15.20% -
random/pr12392.cpp -14.07% 909.12 MB 781.21 MB - -14.05% -
random/pr70614.c -13.66% 62.66 MB 54.10 MB - -13.37% -
random/pr28071.c -13.44% 1.31 GB 1.14 GB - -13.59% -
random/pr60243.c -9.85% 2.03 GB 1.83 GB - -12.90% -
random/pr29433.cpp -8.16% 330.92 MB 303.93 MB - -8.15% -
random/pr26854-2.c -4.87% 1.45 GB 1.38 GB - -4.72% -
random/pr36262.c -4.16% 2.89 GB 2.77 GB - -3.81% -
random/pr38518.c -4.12% 2.89 GB 2.77 GB - -3.71% -
random/empty.c -2.67% 16.70 MB 16.26 MB - 0.12% -

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/pr36439.cpp 7.88% 33.160 35.774 - 3.32% -
random/pr29433.cpp 5.35% 3.947 4.158 - 5.10% -
random/pr36498.cpp 2.41% 16.283 16.677 - 7.80% -
random/pr12850.cpp 2.30% 41.140 42.085 - 7.30% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -33.68% 117.203 77.730 - -7.59% -
random/pr28071.c -3.39% 68.825 66.489 - -0.72% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp -33.53% 357.54 MB 237.64 MB - -33.17% -
random/pr36439.cpp -30.64% 452.65 MB 313.95 MB - -30.61% -
random/pr12850.cpp -30.03% 569.88 MB 398.74 MB - -29.84% -
random/pr36291.cpp -28.73% 480.34 MB 342.34 MB - -28.57% -
random/pr39326.c -15.20% 575.34 MB 487.91 MB - -15.26% -
random/pr12392.cpp -14.05% 908.87 MB 781.21 MB - -14.07% -
random/pr28071.c -13.59% 1.32 GB 1.14 GB - -13.44% -
random/pr70614.c -13.37% 62.45 MB 54.10 MB - -13.66% -
random/pr60243.c -12.90% 2.10 GB 1.83 GB - -9.85% -
random/pr29433.cpp -8.15% 330.88 MB 303.93 MB - -8.16% -
random/pr26854-2.c -4.72% 1.45 GB 1.38 GB - -4.87% -
random/pr36262.c -3.81% 2.88 GB 2.77 GB - -4.16% -
random/pr38518.c -3.71% 2.88 GB 2.77 GB - -4.12% -

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

Report Time: 0.09s
mem_bytes (bytes)
Name Current %
random/empty.c 16.26 MB -2.67%
random/empty.C 17.48 MB -
random/pr12392.cpp 781.21 MB -14.07%
random/pr12850.cpp 398.74 MB -29.84%
random/pr26854-2.c 1.38 GB -4.87%
random/pr28071.c 1.14 GB -13.44%
random/pr29433.cpp 303.93 MB -8.16%
random/pr36262.c 2.77 GB -4.16%
random/pr36291.cpp 342.34 MB -28.57%
random/pr36439.cpp 313.95 MB -30.61%
random/pr36498.cpp 237.64 MB -33.17%
random/pr38518.c 2.77 GB -4.12%
random/pr39326.c 487.91 MB -15.26%
random/pr60243.c 1.83 GB -9.85%
random/pr70614.c 54.10 MB -13.66%
Geometric Mean 377.44 MB -14.92%