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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) 2.34.0.20200325-1
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 20200819 (experimental) e6e01618e83bcd9eb3a2b27df30ed87106a748b4
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 e6e01618e83bcd9eb3a2b27df30ed87106a748b4
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 1597865770000.e6e01618e83bcd9eb3a2b27df30ed87106a748b4 2020-08-19T23:55:12.920036 0:01:33.318471
Previous 1597711681000.da7c2773e56c889f4f131b80d4b91f1adbae80a2 2020-08-18T07:26:27.747004 0:01:32.741084
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 2 13
Performance Improvements 2 25
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/pr36291.cpp 9.05% 21.328 23.258 - 6.52% -
random/pr26854-2.c 9.04% 13.761 15.004 - -20.72% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp -2.81% 29.010 28.195 - -24.86% -
random/pr69609.c -2.36% 21.601 21.091 - -31.49% -

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/pr36291.cpp 6.52% 21.835 23.258 - 9.05% -
random/pr36262.c 3.92% 4.517 4.694 - -0.45% -
random/pr36439.cpp 3.19% 23.116 23.854 - 0.34% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36291.cpp 10.75% 569.09 MB 630.29 MB - 0.02% -
random/empty.C 5.19% 17.60 MB 18.51 MB - 1.74% -
random/empty.c 3.86% 16.49 MB 17.12 MB - 0.39% -
random/pr12392.cpp 3.64% 705.73 MB 731.39 MB - -0.01% -
random/pr39326.c 3.33% 447.71 MB 462.63 MB - 0.06% -
random/pr29433.cpp 2.50% 1.92 GB 1.96 GB - 0.06% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp/elf/sections/text 9.83% 417.24 KB 458.25 KB - 0.00% -
random/pr36498.cpp/elf 6.89% 15.81 MB 16.90 MB - 0.00% -
random/pr36439.cpp/elf 6.78% 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 -31.49% 30.784 21.091 - -2.36% -
random/pr12392.cpp -24.86% 37.526 28.195 - -2.81% -
random/pr39326.c -22.22% 135.733 105.578 - 0.63% -
random/pr26854-2.c -20.72% 18.927 15.004 - 9.04% -
random/pr28071.c -20.35% 53.756 42.815 - -0.35% -
random/pr70614.c -13.40% 26.005 22.519 - 0.63% -
random/pr12850.cpp -13.07% 53.302 46.334 - 0.47% -
random/pr26854.c -10.33% 107.634 96.519 - -0.62% -
random/pr38518.c -4.79% 4.924 4.688 - -0.45% -
random/pr29433.cpp -3.61% 16.036 15.456 - 0.90% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -12.22% 933.04 MB 818.98 MB - 0.07% -
random/pr12850.cpp -10.11% 993.85 MB 893.34 MB - -0.01% -
random/pr26854-2.c -4.62% 365.98 MB 349.09 MB - 0.08% -
random/pr26854.c -4.50% 1.10 GB 1.05 GB - 0.02% -
random/pr69609.c -3.40% 526.51 MB 508.62 MB - 0.05% -
random/pr38518.c -2.33% 196.77 MB 192.19 MB - 0.10% -
random/pr36262.c -2.10% 196.75 MB 192.61 MB - 0.49% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf -39.46% 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: 0.13s