Fields

hardware None
os_version None

Parameters

cpu Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 48 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 128
On-line CPU(s) list: 0-127
Vendor ID: AuthenticAMD
Model name: AMD EPYC 7702 64-Core Processor
CPU family: 23
Model: 49
Thread(s) per core: 2
Core(s) per socket: 64
Socket(s): 1
Stepping: 0
Frequency boost: enabled
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.37
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 rapl 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 v_spec_ctrl umip rdpid overflow_recov succor smca
Virtualization: AMD-V
L1d cache: 2 MiB (64 instances)
L1i cache: 2 MiB (64 instances)
L2 cache: 32 MiB (64 instances)
L3 cache: 256 MiB (16 instances)
NUMA node(s): 1
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
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
memory MemTotal: 263689116 kB

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) 10.2.1 20210302 0babbc4c67b9cfa346a24f62ef3f15566fe5cdf7
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 0babbc4c67b9cfa346a24f62ef3f15566fe5cdf7
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
Filter

benzen.gcc-10.Ofast test results

Run Order Start Time Duration
Current 1614644236000.0babbc4c67b9cfa346a24f62ef3f15566fe5cdf7 2021-03-02T04:19:42.562696 0:01:37.274912
Previous 1609460222000.a2a11f74d181ac1088c7d73f9815dfce19725f80 2021-01-01T05:51:04.897214 0:01:37.051181
Baseline 1590812319000.6632f2920f08f5b45ffd1ada7006d4591ef9b172 2020-05-30T09:54:31.708717 0:01:35.679834


Tests Summary

Status Group # # (B)
Performance Regressions 0 3
Performance Improvements 7 11
Added Tests 3 3
Unchanged Tests 260 253
Total Tests 270

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c -7.54% 35.629 32.942 - -5.22% -
random/pr38518.c -6.28% 35.362 33.141 - -0.60% -
random/pr28071.c -5.03% 88.357 83.914 - 0.17% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c -76.99% 2.81 GB 662.38 MB - -77.00% -
random/pr38518.c -76.99% 2.81 GB 662.39 MB - -76.99% -
random/pr12392.cpp -40.00% 833.00 MB 499.79 MB - -39.97% -
random/pr26854-2.c -29.72% 1.38 GB 990.39 MB - -29.83% -

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

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 4.72% 106.622 111.657 - -1.05% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.c 2.84% 16.51 MB 16.98 MB - 0.93% -
random/pr39326.c 2.30% 575.89 MB 589.15 MB - 0.24% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -44.39% 1.483 0.825 - -1.46% -
random/pr29433.cpp -21.40% 3.987 3.134 - 0.51% -
random/pr36262.c -5.22% 34.756 32.942 - -7.54% -
random/pr12850.cpp -5.05% 41.757 39.648 - 0.28% -
random/pr26854-2.c -2.98% 56.118 54.447 - -1.10% -
random/pr36291.cpp -2.30% 28.906 28.241 - 0.63% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c -77.00% 2.81 GB 662.38 MB - -76.99% -
random/pr38518.c -76.99% 2.81 GB 662.39 MB - -76.99% -
random/pr12392.cpp -39.97% 832.63 MB 499.79 MB - -40.00% -
random/pr26854-2.c -29.83% 1.38 GB 990.39 MB - -29.72% -
random/pr12850.cpp -2.17% 582.23 MB 569.59 MB - -1.93% -

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
Name Current %
random/empty.C 18.12 MB -
random/empty.c 16.98 MB -
random/pr12392.cpp 499.79 MB -40.00%
random/pr12850.cpp 569.59 MB -
random/pr26854-2.c 990.39 MB -29.72%
random/pr28071.c 1.23 GB -
random/pr29433.cpp 333.11 MB -
random/pr36262.c 662.38 MB -76.99%
random/pr36291.cpp 479.84 MB -
random/pr36439.cpp 454.43 MB -
random/pr38518.c 662.39 MB -76.99%
random/pr39326.c 589.15 MB -
random/pr60243.c 2.03 GB -
random/pr70614.c 59.50 MB -
Geometric Mean 337.90 MB -23.73%