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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 20191212 (experimental) 92285a6be31a6563334031388f4642afa2da2065
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.
git_revision 92285a6be31a6563334031388f4642afa2da2065
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 1576135414000.92285a6be31a6563334031388f4642afa2da2065 2019-12-12T10:27:11.118441 0:01:33.188882
Previous 1576097975000.300dae5c80ddda7ab4fedffaa0bbf53887232a53 2019-12-11T23:32:30.298743 0:01:31.121857
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 1 8
Performance Improvements 3 16
Added Tests 3 3
Unchanged Tests 281 261
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr70614.c 6.25% 25.008 26.570 - 2.17% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr26854-2.c -17.11% 18.894 15.661 - -17.25% -
random/pr36439.cpp -4.22% 25.506 24.429 - 5.68% -
random/pr36291.cpp -2.81% 22.542 21.909 - 0.34% -

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 10.04% 4.517 4.971 - 0.33% -
random/pr36439.cpp 5.68% 23.116 24.429 - -4.22% -
random/pr36498.cpp 4.68% 19.146 20.043 - 0.08% -
random/pr70614.c 2.17% 26.005 26.570 - 6.25% -

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 8.70% 12.12 MB 13.17 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 -27.67% 30.784 22.266 - -0.04% -
random/pr28071.c -17.64% 53.756 44.271 - -1.53% -
random/pr26854-2.c -17.25% 18.927 15.661 - -17.11% -
random/pr12392.cpp -16.68% 37.526 31.267 - -0.70% -
random/pr12850.cpp -8.40% 53.302 48.827 - 0.80% -
random/pr26854.c -4.40% 107.634 102.898 - -0.38% -
random/pr39326.c -2.36% 135.733 132.535 - 1.57% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -11.70% 933.04 MB 823.88 MB - -0.04% -
random/pr12850.cpp -8.55% 993.85 MB 908.86 MB - 0.01% -
random/pr36439.cpp -4.48% 530.39 MB 506.61 MB - 0.00% -
random/pr36498.cpp -2.26% 514.33 MB 502.69 MB - 0.00% -
random/pr69609.c -2.13% 526.51 MB 515.30 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 405.12 KB - 0.00% -

Added Tests - size
random/empty.C/elf/sections/text
random/empty.c/elf/sections/text
random/pr36439.cpp/elf/sections/text

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