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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
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: 3992.40
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 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; Full AMD retpoline, IBPB conditional, IBRS_FW, STIBP conditional, RSB filling
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
memory MemTotal: 263689112 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 20200618 (experimental) aff95ee7cc2c046d69ff6f79990930fb22e0e808
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 aff95ee7cc2c046d69ff6f79990930fb22e0e808
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 1592439397000.aff95ee7cc2c046d69ff6f79990930fb22e0e808 2020-06-18T07:29:10.708723 0:01:33.911483
Previous 1592185395000.54cdb2f5a5b01a482d7cbce30e7b738558eecf59 2020-06-15T07:28:57.998933 0:01:32.938168
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 5 10
Performance Improvements 2 17
Added Tests 3 3
Unchanged Tests 278 258
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854.c 5.12% 103.682 108.986 - 1.26% -
random/pr39326.c 4.13% 132.557 138.035 - 1.70% -
random/pr69609.c 3.74% 22.450 23.290 - -24.34% -
random/pr12850.cpp 2.65% 47.444 48.702 - -8.63% -
random/pr26854-2.c 2.30% 18.592 19.020 - 0.49% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36439.cpp -4.54% 25.709 24.542 - 6.17% -
random/pr38518.c -2.20% 5.061 4.950 - 0.53% -

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 10.19% 4.517 4.977 - -0.24% -
random/pr36439.cpp 6.17% 23.116 24.542 - -4.54% -
random/pr36498.cpp 3.06% 19.146 19.733 - 0.08% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp 7.80% 514.33 MB 554.45 MB - -0.02% -
random/empty.C 3.93% 17.60 MB 18.29 MB - 0.00% -
random/pr39326.c 3.27% 447.71 MB 462.33 MB - -0.13% -
random/empty.c 3.03% 16.49 MB 16.99 MB - 0.76% -

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/pr36439.cpp/elf 8.40% 12.12 MB 13.13 MB - -0.00% -
random/pr36498.cpp/elf 6.74% 15.81 MB 16.88 MB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr69609.c -24.34% 30.784 23.290 - 3.74% -
random/pr28071.c -17.77% 53.756 44.203 - -1.88% -
random/pr12392.cpp -17.02% 37.526 31.139 - -0.13% -
random/pr12850.cpp -8.63% 53.302 48.702 - 2.65% -
random/pr70614.c -7.18% 26.005 24.139 - -1.28% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -12.18% 933.04 MB 819.36 MB - 0.14% -
random/pr12850.cpp -10.45% 993.85 MB 890.00 MB - -0.01% -
random/pr36439.cpp -3.95% 530.39 MB 509.45 MB - 0.15% -
random/pr12392.cpp -2.31% 705.73 MB 689.42 MB - -0.03% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp/elf/sections/text -20.75% 34.82 KB 27.59 KB - -0.13% -
random/pr12850.cpp/elf -17.80% 36.91 MB 30.34 MB - 0.01% -
random/pr69609.c/elf -9.71% 1.73 MB 1.57 MB - 0.00% -
random/pr69609.c/elf/sections/text -7.07% 435.59 KB 404.79 KB - 0.00% -
random/pr12392.cpp/elf -6.23% 15.64 MB 14.66 MB - -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

Report Time: 0.12s