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: 1495.035
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.84
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: 263696144 kB

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 20201010 (experimental) afec2114520b6e7c5762f5e791f9f33d660b597e
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 afec2114520b6e7c5762f5e791f9f33d660b597e
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 benzen 5.7.9-1-default #1 SMP Thu Jul 16 09:40:08 UTC 2020 (a010166) x86_64 x86_64 x86_64 GNU/Linux
Filter

benzen.gcc-trunk-honza.Ofast test results

Run Order Start Time Duration
Current 1602359301000.afec2114520b6e7c5762f5e791f9f33d660b597e 2020-10-10T23:14:33.132184 0:01:32.122683
Previous 1601747302000.75f27a872e94cbe2e661d58d527d42140ea30424 2020-10-03T22:57:55.587757 0:01:33.433446
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785


Tests Summary

Status Group # # (B)
Performance Regressions 7 16
Performance Improvements 5 9
Added Tests 3 3
Unchanged Tests 255 242
Total Tests 270

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp 62.31% 35.075 56.930 - 43.44% -
random/pr36262.c 5.85% 33.499 35.459 - 3.07% -
random/pr38518.c 5.65% 33.788 35.696 - 4.88% -
random/pr70614.c 3.14% 1.398 1.442 - 1.41% -

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp 23.06% 835.29 MB 1.00 GB - 12.60% -

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr36439.cpp/elf/sections/text 4.08% 124.31 KB 129.39 KB - 5.06% -
random/pr26854-2.c/elf/sections/text 2.57% 330.85 KB 339.37 KB - 4.83% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr39326.c -3.81% 69.524 66.876 - -37.49% -
random/pr29433.cpp -2.12% 4.184 4.096 - 4.00% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr39326.c -11.41% 1.27 GB 1.13 GB - 101.79% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr39326.c/elf/sections/text -4.29% 329.27 KB 315.13 KB - -7.27% -
random/pr39326.c/elf -2.51% 741.73 KB 723.10 KB - -25.06% -

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/pr12392.cpp 43.44% 39.689 56.930 - 62.31% -
random/pr28071.c 7.89% 67.980 73.347 - 0.77% -
random/pr36439.cpp 5.02% 32.509 34.141 - 0.41% -
random/pr38518.c 4.88% 34.036 35.696 - 5.65% -
random/pr29433.cpp 4.00% 3.938 4.096 - -2.12% -
random/pr36262.c 3.07% 34.404 35.459 - 5.85% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 101.79% 572.54 MB 1.13 GB - -11.41% -
random/pr29433.cpp 14.21% 330.98 MB 378.02 MB - 0.07% -
random/pr12392.cpp 12.60% 912.91 MB 1.00 GB - 23.06% -
random/pr12850.cpp 4.45% 571.05 MB 596.44 MB - -0.31% -
random/empty.C 4.28% 17.53 MB 18.28 MB - 0.11% -
random/pr36291.cpp 3.79% 482.21 MB 500.49 MB - -0.22% -
random/empty.c 2.50% 16.43 MB 16.84 MB - 0.07% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text 5.06% 123.16 KB 129.39 KB - 4.08% -
random/pr26854-2.c/elf/sections/text 4.83% 323.72 KB 339.37 KB - 2.57% -
random/pr12850.cpp/elf/sections/text 2.52% 91.29 KB 93.58 KB - 1.03% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c -37.49% 106.985 66.876 - -3.81% -
random/pr60243.c -29.14% 120.115 85.113 - 1.65% -
random/pr26854-2.c -6.12% 58.105 54.551 - -0.56% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -7.30% 1.33 GB 1.23 GB - -0.01% -
random/pr26854-2.c -6.95% 1.45 GB 1.35 GB - -1.99% -
random/pr60243.c -5.35% 2.11 GB 2.00 GB - -0.02% -
random/pr70614.c -3.40% 62.10 MB 59.99 MB - -0.93% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -25.06% 964.88 KB 723.10 KB - -2.51% -
random/pr39326.c/elf/sections/text -7.27% 339.84 KB 315.13 KB - -4.29% -

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


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