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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) 2.35.1.20201112-1
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 20210127 (experimental) 38e966646ef2907fa00b159bbe35040c69b14d1b
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 38e966646ef2907fa00b159bbe35040c69b14d1b
glibc GNU C Library (GNU libc) release release version 2.32 (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 10.2.1 20201202 [revision e563687cf9d3d1278f45aaebd03e0f66531076c9].
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) 2.35.1.20201112-1
options None
reason None
uname Linux benzen 5.10.7-1-default #1 SMP Wed Jan 13 06:08:43 UTC 2021 (1c33a89) 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 1611830210000.38e966646ef2907fa00b159bbe35040c69b14d1b 2021-01-28T23:44:11.085129 0:01:35.657985
Previous 1607347034000.8dcfa368fb66c61a86010871c70d3aa3b08e10e9 2020-12-08T01:25:56.494153 0:01:34.905697
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785

Tests Summary

Status Group # # (B)
Performance Regressions 6 16
Performance Improvements 5 10
Added Tests 3 3
Unchanged Tests 256 241
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr39326.c 38.57% 71.005 98.395 - -8.03% -

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c 25.23% 1.17 GB 1.46 GB - 0.75% -

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c/elf/sections/text 5.69% 495.49 KB 523.69 KB - 5.94% -
random/pr38518.c/elf/sections/text 5.69% 495.49 KB 523.69 KB - 5.94% -
random/pr36262.c/elf 5.42% 520.48 KB 548.69 KB - 6.25% -
random/pr38518.c/elf 5.42% 520.48 KB 548.69 KB - 6.25% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp -14.31% 1.00 GB 877.91 MB - -3.83% -
random/pr39326.c -5.86% 1.36 GB 1.28 GB - 128.98% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c/elf/sections/text -9.71% 384.21 KB 346.90 KB - 7.16% -
random/pr39326.c/elf -3.79% 719.43 KB 692.19 KB - -28.26% -
random/pr26854-2.c/elf -3.64% 1022.65 KB 985.41 KB - 1.06% -

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/pr12392.cpp 49.18% 39.689 59.207 - -0.21% -
random/pr36439.cpp 9.56% 32.509 35.617 - 0.03% -
random/pr12850.cpp 5.11% 40.232 42.287 - 0.01% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 128.98% 572.54 MB 1.28 GB - -5.86% -
random/pr29433.cpp 13.48% 330.98 MB 375.61 MB - 0.20% -
random/empty.C 7.56% 17.53 MB 18.85 MB - 1.20% -
random/empty.c 4.80% 16.43 MB 17.21 MB - -0.20% -
random/pr12850.cpp 4.30% 571.05 MB 595.61 MB - 0.23% -
random/pr36291.cpp 3.97% 482.21 MB 501.34 MB - 0.79% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp/elf/sections/text 43.85% 91.29 KB 131.32 KB - -0.21% -
random/pr26854-2.c/elf/sections/text 7.16% 323.72 KB 346.90 KB - -9.71% -
random/pr36262.c/elf 6.25% 516.41 KB 548.69 KB - 5.42% -
random/pr38518.c/elf 6.25% 516.41 KB 548.69 KB - 5.42% -
random/pr36262.c/elf/sections/text 5.94% 494.35 KB 523.69 KB - 5.69% -
random/pr38518.c/elf/sections/text 5.94% 494.35 KB 523.69 KB - 5.69% -
random/pr36439.cpp/elf/sections/text 5.31% 123.16 KB 129.70 KB - 0.08% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -43.14% 1.422 0.808 - -0.56% -
random/pr60243.c -18.48% 120.115 97.919 - 0.14% -
random/pr29433.cpp -13.72% 3.938 3.398 - -0.08% -
random/pr26854-2.c -8.29% 58.105 53.287 - 1.65% -
random/pr39326.c -8.03% 106.985 98.395 - 38.57% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c -7.87% 2.11 GB 1.94 GB - 0.36% -
random/pr12392.cpp -3.83% 912.91 MB 877.91 MB - -14.31% -
random/pr36439.cpp -2.09% 459.73 MB 450.13 MB - 1.23% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -28.26% 964.88 KB 692.19 KB - -3.79% -
random/pr39326.c/elf/sections/text -8.90% 339.84 KB 309.61 KB - -0.48% -

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

Report Time: 0.08s