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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 20211127 (experimental) 23bca17d831567ffe5fcf9a2189df513a884b3a0
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 23bca17d831567ffe5fcf9a2189df513a884b3a0
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 1638010597000.23bca17d831567ffe5fcf9a2189df513a884b3a0 2021-11-28T08:52:36.247324 0:01:25.855058
Previous 1638009508000.67b183fac7b08067fdd3c09abd3efd2691083395 2021-11-27T23:08:50.663931 0:01:27.026174
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785

Tests Summary

Status Group # # (B)
Performance Regressions 4 22
Performance Improvements 6 13
Added Tests 2 2
Unchanged Tests 258 233
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp 7.60% 547.18 MB 588.74 MB - -35.51% -
random/pr36439.cpp 2.62% 447.70 MB 459.43 MB - -0.07% -

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp/elf/sections/text 8.47% 417.42 KB 452.76 KB - 10.47% -
random/pr12392.cpp/elf 5.15% 1.07 MB 1.13 MB - 2.81% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp -3.63% 44.549 42.932 - 6.71% -
random/pr36439.cpp -2.91% 40.139 38.971 - 19.88% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr70614.c -2.88% 64.21 MB 62.37 MB - 0.43% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp/elf/sections/text -45.71% 172.33 KB 93.57 KB - 2.50% -
random/pr29433.cpp/elf/sections/text -5.88% 153.00 B 144.00 B - 0.00% -
random/pr12850.cpp/elf -2.75% 3.55 MB 3.45 MB - 0.33% -

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

Run-Over-Baseline Changes Detail

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp 106.44% 39.689 81.933 - 1.26% -
random/pr36439.cpp 19.88% 32.509 38.971 - -2.91% -
random/pr38518.c 19.20% 34.036 40.571 - -0.44% -
random/pr36262.c 17.29% 34.404 40.353 - -1.03% -
random/pr12850.cpp 6.71% 40.232 42.932 - -3.63% -
random/pr36291.cpp 5.09% 28.849 30.316 - -0.42% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 134.02% 572.54 MB 1.31 GB - 0.01% -
random/empty.c 11.49% 16.43 MB 18.31 MB - 0.00% -
random/pr29433.cpp 10.56% 330.98 MB 365.94 MB - 0.01% -
random/empty.C 9.52% 17.53 MB 19.20 MB - 0.00% -
random/pr12850.cpp 4.74% 571.05 MB 598.09 MB - -0.48% -
random/pr36291.cpp 2.86% 482.21 MB 496.00 MB - -0.28% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text 20.43% 123.16 KB 148.32 KB - -1.86% -
random/pr12392.cpp/elf/sections/text 10.47% 409.86 KB 452.76 KB - 8.47% -
random/pr26854-2.c/elf/sections/text 8.85% 323.72 KB 352.37 KB - 0.00% -
random/pr36262.c/elf 8.52% 516.41 KB 560.43 KB - 0.00% -
random/pr38518.c/elf 8.52% 516.41 KB 560.43 KB - 0.00% -
random/pr36262.c/elf/sections/text 5.54% 494.35 KB 521.75 KB - 0.00% -
random/pr38518.c/elf/sections/text 5.54% 494.35 KB 521.75 KB - 0.00% -
random/pr36439.cpp/elf 5.11% 1.74 MB 1.83 MB - -0.12% -
random/pr12392.cpp/elf 2.81% 1.10 MB 1.13 MB - 5.15% -
random/pr12850.cpp/elf/sections/text 2.50% 91.29 KB 93.57 KB - -45.71% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -34.23% 1.422 0.935 - -0.12% -
random/pr29433.cpp -16.45% 3.938 3.290 - -0.48% -
random/pr60243.c -15.88% 120.115 101.043 - 0.74% -
random/pr26854-2.c -12.63% 58.105 50.765 - -1.26% -
random/pr39326.c -2.31% 106.985 104.517 - -0.19% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c -76.34% 2.91 GB 703.86 MB - -0.05% -
random/pr36262.c -76.29% 2.91 GB 705.28 MB - 0.18% -
random/pr12392.cpp -35.51% 912.91 MB 588.74 MB - 7.60% -
random/pr26854-2.c -34.06% 1.45 GB 978.70 MB - 0.08% -
random/pr60243.c -5.74% 2.11 GB 1.99 GB - 0.78% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -27.53% 964.88 KB 699.27 KB - 0.00% -
random/pr39326.c/elf/sections/text -8.19% 339.84 KB 312.02 KB - 0.00% -
random/pr29433.cpp/elf -5.14% 91.50 KB 86.80 KB - -0.64% -

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

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