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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) 2.32.0.20190909-8
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) 10.0.0 20200102 (experimental) d94865c614190c74a93e2ab5bb8ca9c20ad16505
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 d94865c614190c74a93e2ab5bb8ca9c20ad16505
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 1577956500000.d94865c614190c74a93e2ab5bb8ca9c20ad16505 2020-01-02T12:45:28.659226 0:01:34.067746
Previous 1578010592000.f192d7aeee7d336ce04f881f6d22efdd54a72f50 2020-01-03T10:39:11.992625 0:01:31.181910
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 5 8
Performance Improvements 3 13
Added Tests 3 3
Unchanged Tests 277 264
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c 20.56% 15.641 18.857 - -0.37% -
random/pr12392.cpp 12.64% 31.416 35.387 - -5.70% -
random/pr69609.c 3.90% 22.266 23.135 - -24.85% -
random/pr12850.cpp 3.82% 47.724 49.545 - -7.05% -
random/pr39326.c 2.94% 129.011 132.808 - -2.16% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c -8.48% 4.963 4.542 - 0.56% -
random/pr29433.cpp -6.73% 16.127 15.041 - -6.20% -
random/pr70614.c -2.65% 26.538 25.835 - -0.65% -

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 5.91% 23.116 24.482 - 0.11% -
random/pr36498.cpp 4.26% 19.146 19.961 - -0.43% -
random/pr36291.cpp 3.23% 21.835 22.539 - 0.06% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/empty.C 2.73% 17.60 MB 18.08 MB - 0.00% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36498.cpp/elf/sections/text 9.87% 417.24 KB 458.41 KB - 0.00% -
random/pr36498.cpp/elf 8.97% 15.81 MB 17.23 MB - 0.00% -
random/pr36439.cpp/elf 8.79% 12.12 MB 13.18 MB - 0.00% -
random/pr29433.cpp/elf 2.78% 1.35 MB 1.39 MB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr69609.c -24.85% 30.784 23.135 - 3.90% -
random/pr28071.c -18.32% 53.756 43.910 - -0.07% -
random/pr12850.cpp -7.05% 53.302 49.545 - 3.82% -
random/pr29433.cpp -6.20% 16.036 15.041 - -6.73% -
random/pr12392.cpp -5.70% 37.526 35.387 - 12.64% -
random/pr39326.c -2.16% 135.733 132.808 - 2.94% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -11.67% 933.04 MB 824.16 MB - 0.07% -
random/pr12850.cpp -8.55% 993.85 MB 908.91 MB - 0.01% -
random/pr36439.cpp -4.42% 530.39 MB 506.95 MB - 0.00% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp/elf/sections/text -21.14% 34.82 KB 27.46 KB - 0.00% -
random/pr12850.cpp/elf -13.44% 36.91 MB 31.95 MB - -0.00% -
random/pr69609.c/elf -9.64% 1.73 MB 1.57 MB - 0.00% -
random/pr69609.c/elf/sections/text -7.00% 435.59 KB 405.09 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: 0.16s