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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: 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: 3992.68
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
Run Info

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.36.1.20210326-4
Copyright (C) 2021 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) 12.0.0 20210826 (experimental) 9e55cc83b4a8e9dc3b0e3ebd38fb84fba9a71862
Copyright (C) 2021 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 9e55cc83b4a8e9dc3b0e3ebd38fb84fba9a71862
glibc GNU C Library (GNU libc) release release version 2.33 (git 9826b03b74).
Copyright (C) 2021 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 11.1.1 20210510 [revision 23855a176609fe8dda6abaf2b21846b4517966eb].
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) 2.36.1.20210326-4
options None
reason None
uname Linux benzen 5.12.9-1-default #1 SMP Thu Jun 3 07:44:58 UTC 2021 (f17eb01) x86_64 x86_64 x86_64 GNU/Linux
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benzen.gcc-trunk-honza.Ofast test results

Run Order Start Time Duration
Current 1629990147000.9e55cc83b4a8e9dc3b0e3ebd38fb84fba9a71862 2021-08-27T10:09:12.147542 0:01:23.837471
Previous 1628949797000.18f1dc73f03bae1dce8304cbb50cb7b7cb3a9078 2021-08-15T19:27:51.955964 0:01:24.885611
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785

Tests Summary

Status Group # # (B)
Performance Regressions 1 17
Performance Improvements 1 14
Added Tests 3 3
Unchanged Tests 265 236
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr39326.c 2.12% 104.693 106.911 - -0.07% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/empty.C -2.74% 19.55 MB 19.02 MB - 8.51% -

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 16.31% 32.509 37.811 - 0.47% -
random/pr12850.cpp 7.11% 40.232 43.092 - -0.11% -
random/pr36291.cpp 3.64% 28.849 29.900 - 0.37% -
random/pr38518.c 2.30% 34.036 34.818 - 0.20% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 129.47% 572.54 MB 1.28 GB - -0.05% -
random/pr29433.cpp 10.66% 330.98 MB 366.25 MB - 0.04% -
random/empty.C 8.51% 17.53 MB 19.02 MB - -2.74% -
random/empty.c 6.63% 16.43 MB 17.52 MB - 0.22% -
random/pr12850.cpp 4.90% 571.05 MB 599.01 MB - -0.17% -
random/pr36291.cpp 3.74% 482.21 MB 500.23 MB - -0.11% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp/elf/sections/text 44.26% 91.29 KB 131.69 KB - 0.01% -
random/pr36439.cpp/elf/sections/text 18.45% 123.16 KB 145.88 KB - 0.00% -
random/pr26854-2.c/elf/sections/text 7.23% 323.72 KB 347.13 KB - 1.89% -
random/pr36262.c/elf 6.49% 516.41 KB 549.95 KB - 0.05% -
random/pr38518.c/elf 6.49% 516.41 KB 549.95 KB - 0.05% -
random/pr36262.c/elf/sections/text 3.53% 494.35 KB 511.81 KB - 0.03% -
random/pr38518.c/elf/sections/text 3.53% 494.35 KB 511.81 KB - 0.03% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -41.76% 1.422 0.828 - 0.59% -
random/pr60243.c -17.61% 120.115 98.961 - -0.85% -
random/pr29433.cpp -15.64% 3.938 3.322 - 0.08% -
random/pr26854-2.c -13.27% 58.105 50.392 - -0.21% -
random/pr12392.cpp -12.86% 39.689 34.586 - -0.30% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c -76.33% 2.91 GB 704.10 MB - 0.42% -
random/pr36262.c -76.33% 2.91 GB 704.13 MB - 0.62% -
random/pr12392.cpp -42.59% 912.91 MB 524.11 MB - 0.37% -
random/pr26854-2.c -33.51% 1.45 GB 986.83 MB - -0.07% -
random/pr60243.c -7.17% 2.11 GB 1.96 GB - 1.50% -
random/pr36439.cpp -2.88% 459.73 MB 446.49 MB - 0.12% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -28.58% 964.88 KB 689.12 KB - 0.00% -
random/pr39326.c/elf/sections/text -9.53% 339.84 KB 307.45 KB - 0.00% -
random/pr29433.cpp/elf -4.28% 91.50 KB 87.59 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: 0.09s