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Machine Info

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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: 3992.35
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 Mmio stale data: Not affected
Vulnerability Retbleed: Mitigation; untrained return thunk; SMT enabled with STIBP protection
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; Retpolines, IBPB conditional, STIBP always-on, RSB filling, PBRSB-eIBRS Not affected
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
memory MemTotal: 263696376 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 20210517 (experimental) ce81282261c6c77883b17d0ebfbbe337bed76457
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 ce81282261c6c77883b17d0ebfbbe337bed76457
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.O_g test results

Run Order Start Time Duration
Current 1621268317000.ce81282261c6c77883b17d0ebfbbe337bed76457 2021-05-17T20:01:15.505932 0:01:24.760993
Previous 1620866496000.94de7e225c1fda079052c3f0725c926437d56c94 2021-05-13T07:27:58.904988 0:01:34.733772
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 2 7
Performance Improvements 2 31
Added Tests 3 3
Unchanged Tests 281 247
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c 9.23% 13.638 14.897 - -21.29% -
random/pr39326.c 2.66% 102.496 105.220 - -22.48% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c -19.49% 4.882 3.930 - -12.99% -
random/pr36291.cpp -5.42% 22.098 20.900 - -4.28% -

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 10.21% 23.116 25.476 - -0.11% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.C 9.57% 17.60 MB 19.28 MB - 0.63% -
random/pr36291.cpp 7.83% 569.09 MB 613.67 MB - 0.04% -
random/empty.c 6.11% 16.49 MB 17.50 MB - -1.08% -
random/pr29433.cpp 3.26% 1.92 GB 1.98 GB - 0.01% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c/elf/sections/text 3.34% 105.04 KB 108.56 KB - 0.00% -
random/pr38518.c/elf/sections/text 3.34% 105.04 KB 108.56 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -97.54% 26.005 0.639 - 1.48% -
random/pr69609.c -29.14% 30.784 21.813 - -0.36% -
random/pr28071.c -27.69% 53.756 38.871 - 1.02% -
random/pr39326.c -22.48% 135.733 105.220 - 2.66% -
random/pr26854-2.c -21.29% 18.927 14.897 - 9.23% -
random/pr38518.c -19.96% 4.924 3.941 - 0.10% -
random/pr12392.cpp -19.78% 37.526 30.104 - 0.18% -
random/pr36262.c -12.99% 4.517 3.930 - -19.49% -
random/pr29433.cpp -8.15% 16.036 14.729 - -0.13% -
random/pr12850.cpp -8.09% 53.302 48.990 - -0.03% -
random/pr26854.c -4.99% 107.634 102.261 - 0.13% -
random/pr36291.cpp -4.28% 21.835 20.900 - -5.42% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -12.95% 933.04 MB 812.21 MB - -0.01% -
random/pr12850.cpp -12.88% 993.85 MB 865.89 MB - 0.05% -
random/pr26854.c -7.45% 1.10 GB 1.02 GB - -0.03% -
random/pr12392.cpp -5.30% 705.73 MB 668.29 MB - 0.02% -
random/pr39326.c -4.33% 447.71 MB 428.34 MB - -0.04% -
random/pr69609.c -4.27% 526.51 MB 504.01 MB - -0.02% -
random/pr38518.c -2.90% 196.77 MB 191.06 MB - -0.03% -
random/pr36262.c -2.85% 196.75 MB 191.14 MB - -0.03% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf -51.59% 15.64 MB 7.57 MB - 0.00% -
random/pr12850.cpp/elf -37.41% 36.91 MB 23.10 MB - -0.00% -
random/pr36439.cpp/elf -30.07% 12.12 MB 8.47 MB - 0.00% -
random/pr36291.cpp/elf -23.29% 11.94 MB 9.16 MB - 0.00% -
random/pr12850.cpp/elf/sections/text -20.27% 34.82 KB 27.76 KB - 0.00% -
random/pr69609.c/elf -9.31% 1.73 MB 1.57 MB - 0.00% -
random/pr69609.c/elf/sections/text -7.28% 435.59 KB 403.89 KB - 0.00% -
random/pr29433.cpp/elf -6.81% 1.35 MB 1.26 MB - 0.00% -
random/pr39326.c/elf -5.55% 1.46 MB 1.38 MB - 0.00% -
random/pr26854-2.c/elf/sections/text -2.84% 318.56 KB 309.51 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: 0.29s