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: 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: 1500.000
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.44
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: 263695408 kB

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 20191115 (experimental) fbbadf0018292a93d1d19dcf3c4f439b952abf86
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 fbbadf0018292a93d1d19dcf3c4f439b952abf86
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
Filter

benzen.gcc-trunk.Ofast test results

Run Order Start Time Duration
Current 1573788529000.fbbadf0018292a93d1d19dcf3c4f439b952abf86 2019-11-15T07:29:56.565928 0:01:29.373087
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 5 5
Performance Improvements 15 16
Added Tests 3 3
Unchanged Tests 247 246
Total Tests 270

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp 9.59% 39.221 42.982 - 4.48% -
random/pr36498.cpp 7.29% 15.470 16.598 - 1.93% -
random/pr12392.cpp 5.08% 38.005 39.937 - 2.78% -
random/pr36291.cpp 4.19% 28.853 30.061 - 0.26% -
random/pr38518.c 2.22% 32.755 33.482 - -1.26% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr60243.c -10.51% 84.112 75.275 - -35.77% -
random/pr29433.cpp -9.04% 3.956 3.599 - -8.82% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp -32.88% 355.59 MB 238.66 MB - -33.25% -
random/pr36439.cpp -30.49% 452.44 MB 314.50 MB - -30.52% -
random/pr12850.cpp -29.57% 568.37 MB 400.29 MB - -29.76% -
random/pr36291.cpp -28.42% 479.28 MB 343.05 MB - -28.58% -
random/pr39326.c -15.31% 575.78 MB 487.61 MB - -15.25% -
random/pr12392.cpp -14.11% 909.12 MB 780.88 MB - -14.08% -
random/pr28071.c -13.39% 1.31 GB 1.14 GB - -13.54% -
random/pr70614.c -12.95% 62.66 MB 54.55 MB - -12.65% -
random/pr60243.c -9.83% 2.03 GB 1.83 GB - -12.88% -
random/pr29433.cpp -8.10% 330.92 MB 304.13 MB - -8.09% -
random/pr26854-2.c -4.87% 1.45 GB 1.38 GB - -4.71% -
random/pr36262.c -4.16% 2.89 GB 2.77 GB - -3.81% -
random/pr38518.c -4.15% 2.89 GB 2.77 GB - -3.74% -

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

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp 4.88% 33.160 34.780 - 0.45% -
random/pr12850.cpp 4.48% 41.140 42.982 - 9.59% -
random/pr36262.c 3.85% 33.635 34.931 - 1.56% -
random/pr12392.cpp 2.78% 38.857 39.937 - 5.08% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.c 2.86% 16.24 MB 16.70 MB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -35.77% 117.203 75.275 - -10.51% -
random/pr29433.cpp -8.82% 3.947 3.599 - -9.04% -
random/pr28071.c -2.23% 68.825 67.287 - 0.47% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp -33.25% 357.54 MB 238.66 MB - -32.88% -
random/pr36439.cpp -30.52% 452.65 MB 314.50 MB - -30.49% -
random/pr12850.cpp -29.76% 569.88 MB 400.29 MB - -29.57% -
random/pr36291.cpp -28.58% 480.34 MB 343.05 MB - -28.42% -
random/pr39326.c -15.25% 575.34 MB 487.61 MB - -15.31% -
random/pr12392.cpp -14.08% 908.87 MB 780.88 MB - -14.11% -
random/pr28071.c -13.54% 1.32 GB 1.14 GB - -13.39% -
random/pr60243.c -12.88% 2.10 GB 1.83 GB - -9.83% -
random/pr70614.c -12.65% 62.45 MB 54.55 MB - -12.95% -
random/pr29433.cpp -8.09% 330.88 MB 304.13 MB - -8.10% -
random/pr26854-2.c -4.71% 1.45 GB 1.38 GB - -4.87% -
random/pr36262.c -3.81% 2.88 GB 2.77 GB - -4.16% -
random/pr38518.c -3.74% 2.88 GB 2.77 GB - -4.15% -

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


Report Time: 0.13s
Name Current %
random/empty.C 17.43 MB -
random/empty.c 16.70 MB -
random/pr12392.cpp 780.88 MB -14.11%
random/pr12850.cpp 400.29 MB -29.57%
random/pr26854-2.c 1.38 GB -4.87%
random/pr28071.c 1.14 GB -13.39%
random/pr29433.cpp 304.13 MB -8.10%
random/pr36262.c 2.77 GB -4.16%
random/pr36291.cpp 343.05 MB -28.42%
random/pr36439.cpp 314.50 MB -30.49%
random/pr36498.cpp 238.66 MB -32.88%
random/pr38518.c 2.77 GB -4.15%
random/pr39326.c 487.61 MB -15.31%
random/pr60243.c 1.83 GB -9.83%
random/pr70614.c 54.55 MB -12.95%
Geometric Mean 378.56 MB -14.67%