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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: 1497.197
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.84
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: 263696144 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 20200911 (experimental) 848e74bea1e8031925d3efe2d85b555a3cf8db38
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 848e74bea1e8031925d3efe2d85b555a3cf8db38
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.O_g test results

Run Order Start Time Duration
Current 1599790418000.848e74bea1e8031925d3efe2d85b555a3cf8db38 2020-09-11T07:24:57.706157 0:01:33.008805
Previous 1599696988000.80f86e78ac0b8a54e2ad208782a583d53f397aa3 2020-09-10T07:25:07.366784 0:01:30.222973
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 5 10
Performance Improvements 4 26
Added Tests 3 3
Unchanged Tests 276 249
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c 9.21% 13.806 15.077 - -20.34% -
random/pr12392.cpp 5.03% 28.231 29.651 - -20.99% -
random/pr70614.c 4.40% 22.694 23.692 - -8.89% -
random/pr36439.cpp 4.06% 23.830 24.798 - 7.28% -
random/pr12850.cpp 2.03% 46.338 47.280 - -11.30% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36291.cpp -4.28% 22.194 21.245 - -2.70% -
random/pr38518.c -3.59% 4.900 4.725 - -4.05% -
random/pr28071.c -2.81% 44.657 43.400 - -19.26% -
random/pr69609.c -2.08% 21.617 21.167 - -31.24% -

Added Tests - size
random/empty.c/elf/sections/text
random/empty.C/elf/sections/text
random/pr36439.cpp/elf/sections/text

Run-Over-Baseline Changes Detail

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp 7.28% 23.116 24.798 - 4.06% -
random/pr36262.c 4.44% 4.517 4.717 - -0.09% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36291.cpp 11.14% 569.09 MB 632.48 MB - 0.29% -
random/empty.C 4.44% 17.60 MB 18.38 MB - 0.68% -
random/empty.c 3.55% 16.49 MB 17.07 MB - -1.42% -
random/pr12392.cpp 3.52% 705.73 MB 730.60 MB - -0.02% -
random/pr39326.c 3.45% 447.71 MB 463.16 MB - 0.00% -
random/pr29433.cpp 2.48% 1.92 GB 1.96 GB - -0.00% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf 6.79% 12.12 MB 12.94 MB - 0.00% -
random/pr29433.cpp/elf 2.81% 1.35 MB 1.39 MB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr69609.c -31.24% 30.784 21.167 - -2.08% -
random/pr39326.c -23.10% 135.733 104.384 - -0.27% -
random/pr12392.cpp -20.99% 37.526 29.651 - 5.03% -
random/pr26854-2.c -20.34% 18.927 15.077 - 9.21% -
random/pr28071.c -19.26% 53.756 43.400 - -2.81% -
random/pr12850.cpp -11.30% 53.302 47.280 - 2.03% -
random/pr26854.c -9.55% 107.634 97.352 - 0.38% -
random/pr70614.c -8.89% 26.005 23.692 - 4.40% -
random/pr29433.cpp -5.11% 16.036 15.216 - -0.42% -
random/pr38518.c -4.05% 4.924 4.725 - -3.59% -
random/pr36291.cpp -2.70% 21.835 21.245 - -4.28% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -12.30% 933.04 MB 818.25 MB - -0.01% -
random/pr12850.cpp -10.11% 993.85 MB 893.39 MB - -0.03% -
random/pr26854.c -4.61% 1.10 GB 1.05 GB - -0.01% -
random/pr26854-2.c -4.56% 365.98 MB 349.30 MB - 0.00% -
random/pr69609.c -3.77% 526.51 MB 506.67 MB - -0.19% -
random/pr38518.c -2.21% 196.77 MB 192.42 MB - -0.03% -
random/pr36262.c -2.10% 196.75 MB 192.61 MB - 0.15% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf -39.47% 15.64 MB 9.47 MB - 0.00% -
random/pr12850.cpp/elf/sections/text -20.14% 34.82 KB 27.80 KB - 0.00% -
random/pr12850.cpp/elf -17.69% 36.91 MB 30.38 MB - 0.00% -
random/pr69609.c/elf -9.71% 1.73 MB 1.57 MB - 0.00% -
random/pr69609.c/elf/sections/text -7.06% 435.59 KB 404.83 KB - 0.00% -
random/pr39326.c/elf -5.44% 1.46 MB 1.38 MB - 0.00% -
random/pr26854-2.c/elf/sections/text -2.79% 318.56 KB 309.68 KB - 0.00% -
random/pr28071.c/elf/sections/text -2.59% 662.44 KB 645.28 KB - 0.00% -

Added Tests - size
random/empty.c/elf/sections/text
random/empty.C/elf/sections/text
random/pr36439.cpp/elf/sections/text

Report Time: 0.11s