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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) 2.34.0.20200325-1
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 20201120 (experimental) 5a5e53fdb29042bbfc662eba9960d04e906cd553
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 5a5e53fdb29042bbfc662eba9960d04e906cd553
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
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benzen.gcc-trunk-honza.Ofast test results

Run Order Start Time Duration
Current 1606154402000.5a5e53fdb29042bbfc662eba9960d04e906cd553 2020-11-23T22:56:45.363849 0:01:35.067716
Previous 1605896737000.a0917becd66182eee6eb6a7a150e38f0463b765d 2020-11-21T17:26:27.433119 0:01:34.691763
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785

Tests Summary

Status Group # # (B)
Performance Regressions 1 13
Performance Improvements 0 10
Added Tests 3 3
Unchanged Tests 266 244
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp/elf/sections/text 40.54% 65.13 KB 91.54 KB - 0.27% -

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 42.81% 39.689 56.678 - -0.66% -
random/pr36439.cpp 7.87% 32.509 35.068 - 0.22% -
random/pr12850.cpp 2.69% 40.232 41.313 - -1.75% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 143.54% 572.54 MB 1.36 GB - 0.05% -
random/pr29433.cpp 12.86% 330.98 MB 373.56 MB - -0.05% -
random/pr12392.cpp 12.40% 912.91 MB 1.00 GB - 0.11% -
random/empty.C 5.93% 17.53 MB 18.57 MB - 0.00% -
random/empty.c 4.59% 16.43 MB 17.18 MB - 0.00% -
random/pr12850.cpp 3.47% 571.05 MB 590.86 MB - -0.19% -
random/pr36291.cpp 2.72% 482.21 MB 495.30 MB - -0.67% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr26854-2.c/elf/sections/text 13.36% 323.72 KB 366.97 KB - 0.00% -
random/pr36439.cpp/elf/sections/text 4.87% 123.16 KB 129.16 KB - -0.25% -
random/pr26854-2.c/elf 3.12% 975.09 KB 1005.50 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -42.38% 1.422 0.819 - 0.73% -
random/pr39326.c -32.52% 106.985 72.195 - -0.17% -
random/pr60243.c -18.31% 120.115 98.126 - -0.66% -
random/pr29433.cpp -14.17% 3.938 3.380 - -0.13% -
random/pr26854-2.c -11.75% 58.105 51.279 - 1.13% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr26854-2.c -16.91% 1.45 GB 1.20 GB - -0.04% -
random/pr60243.c -8.21% 2.11 GB 1.94 GB - -0.01% -
random/pr36439.cpp -2.35% 459.73 MB 448.95 MB - -0.47% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -25.44% 964.88 KB 719.43 KB - 0.00% -
random/pr39326.c/elf/sections/text -8.46% 339.84 KB 311.11 KB - 0.00% -

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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