Fields

hardware None
os_version None

Parameters

cpu Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 39 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Vendor ID: GenuineIntel
Model name: Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
CPU family: 6
Model: 158
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
Stepping: 9
CPU max MHz: 3500.0000
CPU min MHz: 800.0000
BogoMIPS: 6000.00
Flags: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single pti ssbd ibrs ibpb stibp fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp md_clear flush_l1d arch_capabilities
L1d cache: 128 KiB (4 instances)
L1i cache: 128 KiB (4 instances)
L2 cache: 1 MiB (4 instances)
L3 cache: 6 MiB (1 instance)
NUMA node(s): 1
NUMA node0 CPU(s): 0-3
Vulnerability Itlb multihit: KVM: Mitigation: VMX unsupported
Vulnerability L1tf: Mitigation; PTE Inversion
Vulnerability Mds: Mitigation; Clear CPU buffers; SMT disabled
Vulnerability Meltdown: Mitigation; PTI
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 generic retpoline, IBPB conditional, IBRS_FW, STIBP disabled, RSB filling
Vulnerability Srbds: Mitigation; Microcode
Vulnerability Tsx async abort: Not affected
memory MemTotal: 8000340 kB

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.36.1.20210326-4
Copyright (C) 2021 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) 9.4.1 20210829 2b294bb48c12ad8bc22e6146df8a01baacab44f9
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 2b294bb48c12ad8bc22e6146df8a01baacab44f9
glibc GNU C Library (GNU libc) release release version 2.33 (git 9826b03b74).
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.
Configured for x86_64-suse-linux.
Compiled by GNU CC version 11.1.1 20210510 [revision 23855a176609fe8dda6abaf2b21846b4517966eb].
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) 2.36.1.20210326-4
options None
reason None
uname Linux kaby 5.12.9-1-default #1 SMP Thu Jun 3 07:44:58 UTC 2021 (f17eb01) x86_64 x86_64 x86_64 GNU/Linux
Filter

kaby.gcc-9.Ofast test results

Run Order Start Time Duration
Current 1630196363000.2b294bb48c12ad8bc22e6146df8a01baacab44f9 2021-08-30T00:40:16.137966 0:00:47.241755
Previous 1619310000000.c49b480add251aa7542ec943b3444214c3434b43 2021-04-25T14:02:32.849483 0:00:46.963512
Baseline 1558452270000.fa41d44ab166f41187f077993530849fb191c56a 2019-05-22T01:27:37.555357 0:00:42.011234


Tests Summary

Status Group # # (B)
Performance Regressions 0 3
Performance Improvements 7 11
Added Tests 3 3
Unchanged Tests 296 289
Total Tests 306

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr38518.c -55.92% 2.91 GB 1.28 GB - -56.00% -
random/pr36262.c -55.86% 2.91 GB 1.29 GB - -55.90% -
random/pr28071.c -26.10% 1.33 GB 1007.28 MB - -37.01% -
random/pr12392.cpp -22.30% 761.12 MB 591.43 MB - -21.67% -
random/pr26854-2.c -15.38% 1.46 GB 1.23 GB - -15.39% -
random/pr39326.c -14.43% 694.47 MB 594.24 MB - 1.09% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr29433.cpp/elf -4.45% 88.57 KB 84.62 KB - -4.45% -

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

Performance Regressions - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp 2.83% 28.462 29.267 - -0.15% -
random/pr38518.c 2.42% 77.675 79.554 - -0.73% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp 3.22% 435.18 MB 449.20 MB - 0.13% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c -22.89% 111.892 86.280 - 1.83% -
random/pr28071.c -5.38% 68.722 65.026 - 0.37% -
random/pr36291.cpp -3.24% 27.809 26.907 - 0.57% -
random/pr26854-2.c -2.67% 41.000 39.907 - 1.01% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr38518.c -56.00% 2.92 GB 1.28 GB - -55.92% -
random/pr36262.c -55.90% 2.91 GB 1.29 GB - -55.86% -
random/pr28071.c -37.01% 1.56 GB 1007.28 MB - -26.10% -
random/pr12392.cpp -21.67% 755.02 MB 591.43 MB - -22.30% -
random/pr26854-2.c -15.39% 1.46 GB 1.23 GB - -15.38% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr29433.cpp/elf -4.45% 88.57 KB 84.62 KB - -4.45% -
random/pr39326.c/elf/sections/text -2.39% 352.52 KB 344.08 KB - 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: 0.10s
Name Current %
random/empty.C 17.11 MB -
random/empty.c 15.74 MB -
random/pr12392.cpp 591.43 MB -22.30%
random/pr12850.cpp 566.52 MB -
random/pr26854-2.c 1.23 GB -15.38%
random/pr28071.c 1007.28 MB -26.10%
random/pr29433.cpp 335.08 MB -
random/pr36262.c 1.29 GB -55.86%
random/pr36291.cpp 477.64 MB -
random/pr36439.cpp 449.20 MB -
random/pr38518.c 1.28 GB -55.92%
random/pr39326.c 594.24 MB -14.43%
random/pr70614.c 60.78 MB -
Geometric Mean 328.36 MB -17.67%