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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
Byte Order: Little Endian
Address sizes: 48 bits physical, 48 bits virtual
CPU(s): 128
On-line CPU(s) list: 0-127
Thread(s) per core: 2
Core(s) per socket: 64
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 23
Model: 49
Model name: AMD EPYC 7702 64-Core Processor
Stepping: 0
Frequency boost: enabled
CPU MHz: 1500.000
CPU max MHz: 2000.0000
CPU min MHz: 1500.0000
BogoMIPS: 3992.68
Virtualization: AMD-V
L1d cache: 2 MiB
L1i cache: 2 MiB
L2 cache: 32 MiB
L3 cache: 256 MiB
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 and seccomp
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
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 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 umip rdpid overflow_recov succor smca
memory MemTotal: 263695408 kB
Run Info

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.35.1.20201112-1
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 20210217 (experimental) 07daf62d9a67845362be462a0cb68ef4a15f048e
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 07daf62d9a67845362be462a0cb68ef4a15f048e
glibc GNU C Library (GNU libc) release release version 2.32 (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 10.2.1 20201202 [revision e563687cf9d3d1278f45aaebd03e0f66531076c9].
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) 2.35.1.20201112-1
options None
reason None
uname Linux benzen 5.10.7-1-default #1 SMP Wed Jan 13 06:08:43 UTC 2021 (1c33a89) x86_64 x86_64 x86_64 GNU/Linux
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benzen.gcc-trunk-honza.Ofast test results

Run Order Start Time Duration
Current 1613573582000.07daf62d9a67845362be462a0cb68ef4a15f048e 2021-02-18T12:03:14.723062 0:01:35.041676
Previous 1611830210000.38e966646ef2907fa00b159bbe35040c69b14d1b 2021-01-28T23:44:11.085129 0:01:35.657985
Baseline 1571915009000.6f4da220ebfa0c3a3db02109dcb371da27516a3b 2019-10-25T18:03:45.968290 0:01:31.225785

Tests Summary

Status Group # # (B)
Performance Regressions 1 17
Performance Improvements 8 18
Added Tests 7 3
Unchanged Tests 254 232
Total Tests 270

Run-Over-Run Changes Detail

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr39326.c 3.33% 98.395 101.669 - -4.97% -

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp -40.74% 59.207 35.089 - -11.59% -
random/pr26854-2.c -8.91% 53.287 48.542 - -16.46% -
random/pr38518.c -8.48% 34.083 31.193 - -8.35% -
random/pr36262.c -8.33% 34.109 31.267 - -9.12% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36262.c -77.27% 2.94 GB 683.36 MB - -77.03% -
random/pr38518.c -77.18% 2.94 GB 686.07 MB - -76.94% -
random/pr26854-2.c -34.32% 1.46 GB 982.16 MB - -33.82% -
random/pr12392.cpp -9.86% 877.91 MB 791.31 MB - -13.32% -

Added Tests - compile_time
random/pr28071.c

Added Tests - mem_bytes
random/pr28071.c

Added Tests - size
random/empty.C/elf/sections/text
random/empty.c/elf/sections/text
random/pr28071.c/elf
random/pr28071.c/elf/sections/text
random/pr29433.cpp/elf/sections/text

Run-Over-Baseline Changes Detail

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c 120.12% 67.980 149.638 - 0.00% -
random/pr36439.cpp 9.29% 32.509 35.528 - -0.25% -
random/pr12850.cpp 4.89% 40.232 42.202 - -0.20% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c 127.51% 572.54 MB 1.27 GB - -0.64% -
random/pr28071.c 75.18% 1.33 GB 2.33 GB - 0.00% -
random/pr29433.cpp 13.54% 330.98 MB 375.81 MB - 0.05% -
random/empty.C 8.29% 17.53 MB 18.98 MB - 0.68% -
random/empty.c 4.80% 16.43 MB 17.21 MB - 0.00% -
random/pr12850.cpp 4.12% 571.05 MB 594.56 MB - -0.18% -
random/pr36291.cpp 3.97% 482.21 MB 501.36 MB - 0.00% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12850.cpp/elf/sections/text 43.85% 91.29 KB 131.32 KB - 0.00% -
random/pr36262.c/elf 6.29% 516.41 KB 548.92 KB - 0.04% -
random/pr38518.c/elf 6.29% 516.41 KB 548.92 KB - 0.04% -
random/pr36262.c/elf/sections/text 5.99% 494.35 KB 523.94 KB - 0.05% -
random/pr38518.c/elf/sections/text 5.99% 494.35 KB 523.94 KB - 0.05% -
random/pr26854-2.c/elf/sections/text 5.51% 323.72 KB 341.55 KB - -1.54% -
random/pr36439.cpp/elf/sections/text 5.31% 123.16 KB 129.70 KB - 0.00% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr70614.c -44.04% 1.422 0.796 - -1.58% -
random/pr60243.c -18.46% 120.115 97.946 - 0.03% -
random/pr26854-2.c -16.46% 58.105 48.542 - -8.91% -
random/pr29433.cpp -14.40% 3.938 3.371 - -0.79% -
random/pr12392.cpp -11.59% 39.689 35.089 - -40.74% -
random/pr36262.c -9.12% 34.404 31.267 - -8.33% -
random/pr38518.c -8.35% 34.036 31.193 - -8.48% -
random/pr39326.c -4.97% 106.985 101.669 - 3.33% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36262.c -77.03% 2.91 GB 683.36 MB - -77.27% -
random/pr38518.c -76.94% 2.91 GB 686.07 MB - -77.18% -
random/pr26854-2.c -33.82% 1.45 GB 982.16 MB - -34.32% -
random/pr12392.cpp -13.32% 912.91 MB 791.31 MB - -9.86% -
random/pr60243.c -8.61% 2.11 GB 1.93 GB - -0.80% -
random/pr36439.cpp -2.46% 459.73 MB 448.44 MB - -0.38% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c/elf -28.35% 964.88 KB 691.32 KB - -0.13% -
random/pr39326.c/elf/sections/text -8.92% 339.84 KB 309.52 KB - -0.03% -
random/pr28071.c/elf/sections/text -4.26% 810.08 KB 775.57 KB - 0.00% -
random/pr28071.c/elf -2.89% 1.28 MB 1.24 MB - 0.00% -

Added Tests - size
random/empty.C/elf/sections/text
random/empty.c/elf/sections/text
random/pr29433.cpp/elf/sections/text

Report Time: 0.08s
mem_bytes (bytes)
Name Current %
random/empty.C 18.98 MB -
random/empty.c 17.21 MB -
random/pr12392.cpp 791.31 MB -9.86%
random/pr12850.cpp 594.56 MB -
random/pr26854-2.c 982.16 MB -34.32%
random/pr28071.c 2.33 GB -
random/pr29433.cpp 375.81 MB -
random/pr36262.c 683.36 MB -77.27%
random/pr36291.cpp 501.36 MB -
random/pr36439.cpp 448.44 MB -
random/pr38518.c 686.07 MB -77.18%
random/pr39326.c 1.27 GB -
random/pr60243.c 1.93 GB -
random/pr70614.c 61.47 MB -
Geometric Mean 395.08 MB -12.26%