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) 2.34.0.20200325-1
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 20201113 (experimental) 82990836679f1972141a2f93666bd6d39323a435
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 82990836679f1972141a2f93666bd6d39323a435
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
Filter

benzen.gcc-trunk.Ofast test results

Run Order Start Time Duration
Current 1605252889000.82990836679f1972141a2f93666bd6d39323a435 2020-11-13T11:11:06.253102 0:01:34.465482
Previous 1605632287000.a5f9c27bfc4417224e332392bb81a2d733b2b5bf 2020-11-17T23:23:56.891052 0:01:35.289410
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.472364


Tests Summary

Status Group # # (B)
Performance Regressions 3 13
Performance Improvements 3 11
Added Tests 3 3
Unchanged Tests 261 243
Total Tests 270

Performance Regressions - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr60243.c 2.67% 1.94 GB 1.99 GB - -5.27% -
random/empty.C 2.05% 18.25 MB 18.63 MB - 7.41% -

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp/elf/sections/text 42.98% 65.15 KB 93.15 KB - 2.07% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr60243.c -15.48% 98.624 83.355 - -28.88% -
random/pr26854-2.c -4.07% 53.457 51.280 - -10.06% -
random/pr12392.cpp -3.40% 58.527 56.536 - 45.50% -

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/pr12392.cpp 45.50% 38.857 56.536 - -3.40% -
random/pr36439.cpp 5.23% 33.160 34.896 - -0.89% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 142.12% 575.34 MB 1.36 GB - -0.04% -
random/pr29433.cpp 12.90% 330.88 MB 373.57 MB - -0.06% -
random/pr12392.cpp 12.88% 908.87 MB 1.00 GB - 0.12% -
random/empty.C 7.41% 17.34 MB 18.63 MB - 2.05% -
random/pr12850.cpp 3.56% 569.88 MB 590.15 MB - -0.35% -
random/empty.c 3.03% 16.24 MB 16.73 MB - -1.52% -
random/pr36291.cpp 3.03% 480.34 MB 494.89 MB - -0.58% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr26854-2.c/elf/sections/text 13.36% 323.69 KB 366.94 KB - -0.01% -
random/pr36439.cpp/elf/sections/text 4.81% 123.36 KB 129.30 KB - -0.19% -
random/pr26854-2.c/elf 3.12% 975.05 KB 1005.47 KB - -0.00% -
random/pr12850.cpp/elf/sections/text 2.07% 91.26 KB 93.15 KB - 42.98% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -42.91% 1.435 0.819 - 0.12% -
random/pr39326.c -31.10% 104.650 72.106 - 1.22% -
random/pr60243.c -28.88% 117.203 83.355 - -15.48% -
random/pr29433.cpp -14.15% 3.947 3.388 - -0.25% -
random/pr26854-2.c -10.06% 57.018 51.280 - -4.07% -
random/pr36291.cpp -3.53% 29.982 28.923 - -0.66% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr26854-2.c -16.94% 1.45 GB 1.20 GB - -0.05% -
random/pr60243.c -5.27% 2.10 GB 1.99 GB - 2.67% -
random/pr70614.c -2.21% 62.45 MB 61.06 MB - 1.72% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -25.43% 964.91 KB 719.54 KB - 0.00% -
random/pr39326.c/elf/sections/text -8.41% 339.86 KB 311.27 KB - 0.00% -

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


Report Time: 0.12s