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: 1455.455
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.83
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: 263729312 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 20191125 (experimental) 79f1c867581981b896bccbd7561ead4452dd792b
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 79f1c867581981b896bccbd7561ead4452dd792b
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 1574678185000.79f1c867581981b896bccbd7561ead4452dd792b 2019-11-25T13:22:03.689553 0:01:30.640304
Previous 1574122909000.baacd859bdd910315ec116a2baea2e32fc70df62 2019-11-19T07:29:52.737868 0:01:30.750813
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.472364


Tests Summary

Status Group # # (B)
Performance Regressions 15 4
Performance Improvements 7 11
Added Tests 3 3
Unchanged Tests 245 252
Total Tests 270

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr60243.c 8.76% 75.646 82.271 - -29.80% -
random/pr26854-2.c 7.54% 54.977 59.123 - 3.69% -
random/pr36262.c 3.92% 33.495 34.810 - 3.49% -

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp 47.88% 238.22 MB 352.29 MB - -1.47% -
random/pr12850.cpp 42.19% 400.82 MB 569.93 MB - 0.01% -
random/pr36291.cpp 40.95% 342.58 MB 482.86 MB - 0.53% -
random/pr36439.cpp 40.61% 318.88 MB 448.36 MB - -0.95% -
random/pr39326.c 18.03% 487.62 MB 575.54 MB - 0.03% -
random/pr60243.c 10.94% 1.83 GB 2.03 GB - -3.36% -
random/pr70614.c 9.25% 54.62 MB 59.67 MB - -4.44% -
random/pr29433.cpp 9.07% 303.88 MB 331.45 MB - 0.17% -
random/pr28071.c 8.13% 1.14 GB 1.23 GB - -6.46% -
random/pr12392.cpp 7.08% 780.89 MB 836.15 MB - -8.00% -
random/pr36262.c 2.14% 2.77 GB 2.82 GB - -1.84% -
random/pr38518.c 2.14% 2.76 GB 2.82 GB - -1.80% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp -11.90% 17.730 15.621 - -4.07% -
random/pr12392.cpp -8.48% 39.099 35.781 - -7.92% -
random/pr12850.cpp -7.96% 42.171 38.813 - -5.66% -
random/pr36439.cpp -7.62% 35.238 32.553 - -1.83% -
random/pr29433.cpp -5.19% 4.170 3.953 - 0.17% -
random/pr38518.c -4.65% 36.342 34.653 - 2.19% -
random/pr36291.cpp -4.56% 30.229 28.852 - -3.77% -

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/pr26854-2.c 3.69% 57.018 59.123 - 7.54% -
random/pr36262.c 3.49% 33.635 34.810 - 3.92% -
random/pr38518.c 2.19% 33.910 34.653 - -4.65% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.C 3.33% 17.34 MB 17.92 MB - 0.97% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -29.80% 117.203 82.271 - 8.76% -
random/pr12392.cpp -7.92% 38.857 35.781 - -8.48% -
random/pr12850.cpp -5.66% 41.140 38.813 - -7.96% -
random/pr36498.cpp -4.07% 16.283 15.621 - -11.90% -
random/pr36291.cpp -3.77% 29.982 28.852 - -4.56% -
random/pr28071.c -2.37% 68.825 67.196 - 0.95% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp -8.00% 908.87 MB 836.15 MB - 7.08% -
random/pr28071.c -6.46% 1.32 GB 1.23 GB - 8.13% -
random/pr26854-2.c -5.14% 1.45 GB 1.37 GB - -0.21% -
random/pr70614.c -4.44% 62.45 MB 59.67 MB - 9.25% -
random/pr60243.c -3.36% 2.10 GB 2.03 GB - 10.94% -

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


Report Time: 0.21s
Name Current %
random/empty.c 16.52 MB -
random/empty.C 17.92 MB -
random/pr12392.cpp 836.15 MB 7.08%
random/pr12850.cpp 569.93 MB 42.19%
random/pr26854-2.c 1.37 GB -
random/pr28071.c 1.23 GB 8.13%
random/pr29433.cpp 331.45 MB 9.07%
random/pr36262.c 2.82 GB 2.14%
random/pr36291.cpp 482.86 MB 40.95%
random/pr36439.cpp 448.36 MB 40.61%
random/pr36498.cpp 352.29 MB 47.88%
random/pr38518.c 2.82 GB 2.14%
random/pr39326.c 575.54 MB 18.03%
random/pr60243.c 2.03 GB 10.94%
random/pr70614.c 59.67 MB 9.25%
Geometric Mean 434.99 MB 14.67%