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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) 12.0.0 20210510 (experimental) 66e5e0a08554c487f976e9e7bc0da1038769ae67
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 66e5e0a08554c487f976e9e7bc0da1038769ae67
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 1621327574000.66e5e0a08554c487f976e9e7bc0da1038769ae67 2021-05-18T18:08:11.350037 0:01:05.626921
Previous 1613573582000.07daf62d9a67845362be462a0cb68ef4a15f048e 2021-02-18T12:03:14.723062 0:01:35.041676
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785

Tests Summary

Status Group # # (B)
Performance Regressions 0 12
Performance Improvements 8 17
Added Tests 3 3
Unchanged Tests 259 238
Total Tests 270

Run-Over-Run Changes Detail

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36439.cpp -2.97% 35.528 34.471 - 6.04% -
random/pr39326.c -2.47% 101.669 99.160 - -7.31% -
random/pr36291.cpp -2.42% 29.066 28.362 - -1.69% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp/elf/sections/text -29.12% 131.32 KB 93.08 KB - 1.97% -
random/pr36262.c/elf/sections/text -5.21% 523.94 KB 496.67 KB - 0.47% -
random/pr38518.c/elf/sections/text -5.21% 523.94 KB 496.67 KB - 0.47% -
random/pr36262.c/elf -4.97% 548.92 KB 521.66 KB - 1.02% -
random/pr38518.c/elf -4.97% 548.92 KB 521.66 KB - 1.02% -

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/pr28071.c 116.08% 67.980 146.894 - -1.83% -
random/pr36439.cpp 6.04% 32.509 34.471 - -2.97% -
random/pr12850.cpp 3.11% 40.232 41.484 - -1.70% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 126.45% 572.54 MB 1.27 GB - -0.47% -
random/pr28071.c 75.21% 1.33 GB 2.33 GB - 0.01% -
random/pr29433.cpp 13.51% 330.98 MB 375.70 MB - -0.03% -
random/empty.C 9.49% 17.53 MB 19.19 MB - 1.11% -
random/empty.c 5.97% 16.43 MB 17.41 MB - 1.11% -
random/pr12850.cpp 4.41% 571.05 MB 596.22 MB - 0.28% -
random/pr36291.cpp 3.33% 482.21 MB 498.28 MB - -0.61% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr26854-2.c/elf/sections/text 7.15% 323.72 KB 346.88 KB - 1.56% -
random/pr36439.cpp/elf/sections/text 4.14% 123.16 KB 128.26 KB - -1.10% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -44.83% 1.422 0.784 - -1.43% -
random/pr60243.c -18.87% 120.115 97.447 - -0.51% -
random/pr26854-2.c -17.20% 58.105 48.114 - -0.88% -
random/pr29433.cpp -14.96% 3.938 3.349 - -0.65% -
random/pr12392.cpp -13.06% 39.689 34.504 - -1.67% -
random/pr36262.c -9.00% 34.404 31.306 - 0.12% -
random/pr38518.c -8.41% 34.036 31.174 - -0.06% -
random/pr39326.c -7.31% 106.985 99.160 - -2.47% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c -76.57% 2.91 GB 696.90 MB - 1.98% -
random/pr38518.c -76.54% 2.91 GB 698.01 MB - 1.74% -
random/pr26854-2.c -33.71% 1.45 GB 983.80 MB - 0.17% -
random/pr12392.cpp -13.38% 912.91 MB 790.76 MB - -0.07% -
random/pr60243.c -8.60% 2.11 GB 1.93 GB - 0.01% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -28.36% 964.88 KB 691.23 KB - -0.01% -
random/pr39326.c/elf/sections/text -8.95% 339.84 KB 309.42 KB - -0.03% -
random/pr28071.c/elf/sections/text -3.97% 810.08 KB 777.95 KB - 0.31% -
random/pr28071.c/elf -2.71% 1.28 MB 1.24 MB - 0.19% -

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