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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) 2.32.0.20190909-8
Copyright (C) 2019 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 20200724 (experimental) b0e5ec934e7a7473275326e2aee58eaf252cdff1
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 b0e5ec934e7a7473275326e2aee58eaf252cdff1
glibc GNU C Library (GNU libc) stable release version 2.30 (git 0a8262a1b2).
Copyright (C) 2019 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 9.2.1 20190903 [gcc-9-branch revision 275330].
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) 2.32.0.20190909-8
options None
reason None
uname Linux benzen 5.3.6-1-default #1 SMP Sun Oct 13 07:19:36 UTC 2019 (519ea7b) 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 1595557636000.b0e5ec934e7a7473275326e2aee58eaf252cdff1 2020-07-24T07:29:08.194850 0:01:30.039819
Previous 1595471307000.5029d42c4014ce8c9771ba7b8280d5e7770b6dee 2020-07-23T07:29:19.249484 0:01:31.483508
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 3 14
Performance Improvements 4 19
Added Tests 3 3
Unchanged Tests 278 252
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp 3.93% 18.950 19.695 - 2.87% -
random/pr28071.c 2.58% 44.251 45.394 - -15.56% -
random/pr12392.cpp 2.42% 29.798 30.519 - -18.67% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c -14.45% 18.627 15.936 - -15.80% -
random/pr36439.cpp -4.13% 26.087 25.009 - 8.19% -
random/pr36291.cpp -3.00% 22.902 22.215 - 1.74% -
random/pr70614.c -2.26% 23.834 23.295 - -10.42% -

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/pr36262.c 9.64% 4.517 4.953 - 0.50% -
random/pr36439.cpp 8.19% 23.116 25.009 - -4.13% -
random/pr36498.cpp 2.87% 19.146 19.695 - 3.93% -
random/pr29433.cpp 2.76% 16.036 16.478 - 1.08% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp 7.84% 514.33 MB 554.68 MB - -0.03% -
random/empty.C 4.68% 17.60 MB 18.42 MB - 0.00% -
random/pr36291.cpp 4.64% 569.09 MB 595.50 MB - 0.00% -
random/pr12392.cpp 3.58% 705.73 MB 731.02 MB - 0.00% -
random/empty.c 3.44% 16.49 MB 17.05 MB - 0.00% -
random/pr39326.c 3.33% 447.71 MB 462.62 MB - -0.11% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp/elf/sections/text 9.83% 417.24 KB 458.26 KB - 0.00% -
random/pr36498.cpp/elf 6.74% 15.81 MB 16.88 MB - 0.00% -
random/pr36439.cpp/elf 6.71% 12.12 MB 12.93 MB - 0.00% -
random/pr29433.cpp/elf 2.28% 1.35 MB 1.38 MB - -0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr69609.c -26.48% 30.784 22.632 - -0.01% -
random/pr12392.cpp -18.67% 37.526 30.519 - 2.42% -
random/pr26854-2.c -15.80% 18.927 15.936 - -14.45% -
random/pr28071.c -15.56% 53.756 45.394 - 2.58% -
random/pr12850.cpp -10.44% 53.302 47.736 - 0.30% -
random/pr70614.c -10.42% 26.005 23.295 - -2.26% -
random/pr26854.c -2.56% 107.634 104.881 - -0.29% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -12.21% 933.04 MB 819.13 MB - 0.00% -
random/pr12850.cpp -8.30% 993.85 MB 911.36 MB - -0.01% -
random/pr69609.c -2.69% 526.51 MB 512.34 MB - 0.00% -
random/pr36262.c -2.10% 196.75 MB 192.61 MB - 0.00% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf -39.50% 15.64 MB 9.46 MB - -0.00% -
random/pr12850.cpp/elf/sections/text -20.62% 34.82 KB 27.64 KB - 0.00% -
random/pr12850.cpp/elf -17.75% 36.91 MB 30.36 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 -2.77% 318.56 KB 309.75 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

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