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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 20210104 (experimental) f262a3518877ccce9ed41b2e152c3a3564727bd6
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 f262a3518877ccce9ed41b2e152c3a3564727bd6
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 1609778274000.f262a3518877ccce9ed41b2e152c3a3564727bd6 2021-01-04T23:00:59.126343 0:01:35.746774
Previous 1609346535000.0696141107d61483f38482b941549959a0d7f613 2020-12-30T20:56:49.476825 0:01:36.439199
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 2 11
Performance Improvements 0 24
Added Tests 3 3
Unchanged Tests 283 250
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c 8.78% 13.619 14.814 - -21.73% -
random/pr70614.c 2.37% 21.260 21.765 - -16.31% -

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 9.39% 23.116 25.287 - 0.24% -
random/pr36262.c 5.84% 4.517 4.781 - 0.10% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.C 8.46% 17.60 MB 19.09 MB - -0.33% -
random/pr36291.cpp 8.34% 569.09 MB 616.54 MB - -0.09% -
random/empty.c 6.68% 16.49 MB 17.59 MB - 1.08% -
random/pr29433.cpp 3.09% 1.92 GB 1.97 GB - -0.01% -
random/pr70614.c 2.98% 55.26 MB 56.91 MB - -0.31% -
random/pr39326.c 2.93% 447.71 MB 460.84 MB - 0.05% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf 5.01% 12.12 MB 12.72 MB - -0.03% -
random/pr36262.c/elf/sections/text 4.38% 105.04 KB 109.64 KB - 0.00% -
random/pr38518.c/elf/sections/text 4.38% 105.04 KB 109.64 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr69609.c -29.86% 30.784 21.591 - -0.59% -
random/pr39326.c -22.62% 135.733 105.034 - -1.11% -
random/pr26854-2.c -21.73% 18.927 14.814 - 8.78% -
random/pr38518.c -21.13% 4.924 3.883 - 0.21% -
random/pr12392.cpp -17.23% 37.526 31.060 - -0.23% -
random/pr28071.c -17.12% 53.756 44.552 - 0.18% -
random/pr70614.c -16.31% 26.005 21.765 - 2.37% -
random/pr12850.cpp -10.35% 53.302 47.788 - 0.17% -
random/pr26854.c -8.10% 107.634 98.920 - 1.23% -
random/pr29433.cpp -7.92% 16.036 14.767 - -1.92% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp -13.64% 993.85 MB 858.25 MB - -0.43% -
random/pr28071.c -12.75% 933.04 MB 814.10 MB - -0.01% -
random/pr26854.c -6.33% 1.10 GB 1.03 GB - 0.07% -
random/pr69609.c -4.00% 526.51 MB 505.45 MB - -0.02% -
random/pr26854-2.c -2.92% 365.98 MB 355.28 MB - 0.00% -
random/pr36262.c -2.56% 196.75 MB 191.71 MB - -0.13% -
random/pr36439.cpp -2.01% 530.39 MB 519.74 MB - -0.26% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf -41.08% 15.64 MB 9.21 MB - -0.00% -
random/pr12850.cpp/elf/sections/text -20.22% 34.82 KB 27.78 KB - 0.00% -
random/pr12850.cpp/elf -18.66% 36.91 MB 30.02 MB - -0.00% -
random/pr69609.c/elf -9.82% 1.73 MB 1.56 MB - 0.00% -
random/pr69609.c/elf/sections/text -7.36% 435.59 KB 403.53 KB - 0.00% -
random/pr39326.c/elf -5.34% 1.46 MB 1.38 MB - 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: 0.15s