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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 20200803 (experimental) 7031087cd7d6cd07d18797b0cac90dc048103ed1
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 7031087cd7d6cd07d18797b0cac90dc048103ed1
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 1596413779000.7031087cd7d6cd07d18797b0cac90dc048103ed1 2020-08-03T07:26:00.526182 0:01:32.686003
Previous 1596510555000.265d817b1eb4644c7a9613ad6920315d98e2e0a4 2020-08-04T07:26:17.929363 0:01:30.789159
Baseline 1572221826000.75b6f9367845fc92fd4ebbc8d7b9156e044a9fc8 2019-10-28T07:00:49.454426 0:01:29.339731

Tests Summary

Status Group # # (B)
Performance Regressions 3 12
Performance Improvements 4 26
Added Tests 3 3
Unchanged Tests 278 247
Total Tests 288

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr29433.cpp 6.09% 15.256 16.186 - 0.93% -
random/pr36291.cpp 4.25% 21.221 22.123 - 1.32% -
random/pr69609.c 2.53% 21.039 21.571 - -29.93% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c -13.11% 4.910 4.267 - -5.55% -
random/pr39326.c -3.57% 105.448 101.686 - -25.08% -
random/pr70614.c -2.52% 23.133 22.549 - -13.29% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/empty.C -3.10% 18.77 MB 18.18 MB - 3.33% -

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 2.95% 23.116 23.798 - 0.17% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36291.cpp 10.85% 569.09 MB 630.81 MB - 0.12% -
random/pr36498.cpp 7.91% 514.33 MB 555.02 MB - -0.07% -
random/empty.c 4.22% 16.49 MB 17.18 MB - 1.29% -
random/pr12392.cpp 3.60% 705.73 MB 731.13 MB - -0.02% -
random/pr39326.c 3.37% 447.71 MB 462.80 MB - 0.06% -
random/empty.C 3.33% 17.60 MB 18.18 MB - -3.10% -
random/pr29433.cpp 2.48% 1.92 GB 1.96 GB - 0.04% -

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 6.73% 12.12 MB 12.93 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 -29.93% 30.784 21.571 - 2.53% -
random/pr26854-2.c -27.25% 18.927 13.769 - -0.56% -
random/pr39326.c -25.08% 135.733 101.686 - -3.57% -
random/pr12392.cpp -22.82% 37.526 28.964 - 0.08% -
random/pr28071.c -18.74% 53.756 43.683 - 1.72% -
random/pr12850.cpp -13.32% 53.302 46.204 - 0.14% -
random/pr70614.c -13.29% 26.005 22.549 - -2.52% -
random/pr26854.c -9.40% 107.634 97.514 - 0.80% -
random/pr36262.c -5.55% 4.517 4.267 - -13.11% -
random/pr38518.c -4.44% 4.924 4.706 - -0.63% -
random/pr36498.cpp -2.26% 19.146 18.713 - -0.30% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -12.16% 933.04 MB 819.54 MB - 0.17% -
random/pr12850.cpp -6.82% 993.85 MB 926.11 MB - 0.02% -
random/pr26854.c -5.26% 1.10 GB 1.04 GB - -0.77% -
random/pr26854-2.c -4.30% 365.98 MB 350.26 MB - 0.06% -
random/pr69609.c -4.05% 526.51 MB 505.17 MB - -0.60% -
random/pr36262.c -2.34% 196.75 MB 192.14 MB - 0.01% -
random/pr38518.c -2.33% 196.77 MB 192.19 MB - 0.13% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf -39.47% 15.64 MB 9.47 MB - 0.00% -
random/pr12850.cpp/elf/sections/text -20.62% 34.82 KB 27.64 KB - 0.00% -
random/pr12850.cpp/elf -17.70% 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 -2.77% 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: 0.21s