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: 39 bits physical, 48 bits virtual
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 4
Socket(s): 1
NUMA node(s): 1
Vendor ID: GenuineIntel
CPU family: 6
Model: 158
Model name: Intel(R) Core(TM) i5-7400 CPU @ 3.00GHz
Stepping: 9
CPU MHz: 2400.003
CPU max MHz: 3500.0000
CPU min MHz: 800.0000
BogoMIPS: 6000.00
L1d cache: 128 KiB
L1i cache: 128 KiB
L2 cache: 1 MiB
L3 cache: 6 MiB
NUMA node0 CPU(s): 0-3
Vulnerability Itlb multihit: KVM: Vulnerable
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 and seccomp
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
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
memory MemTotal: 8009880 kB

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.31
Copyright (C) 2018 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) 9.0.0 20190108 (experimental) b2d143e007e42fe2ec1fffbba781a921c3f8e2d1
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 b2d143e007e42fe2ec1fffbba781a921c3f8e2d1
glibc GNU C Library (GNU libc) stable release version 2.27 (git 3260f6ce87b7).
Copyright (C) 2018 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 8.1.1 20180614 [gcc-8-branch revision 261584].
libc ABIs: UNIQUE IFUNC
For bug reporting instructions, please see:
<http://bugs.opensuse.org>.
glibc_location /lib64/libc.so.6
ld GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.31
options None
reason None
uname Linux kaby 4.18.7-1-default #1 SMP PREEMPT Sun Sep 9 10:26:20 UTC 2018 (952d850) x86_64 x86_64 x86_64 GNU/Linux
Filter

kaby.gcc-trunk-honza.Ofast test results

Run Order Start Time Duration
Current 1547318663000.b2d143e007e42fe2ec1fffbba781a921c3f8e2d1 2019-01-13T11:53:51.459492 0:00:40.365779
Previous 1547232128000.59d37f533de89fbdd27a47ddaa344277c7783986 2019-01-12T13:13:12.609214 0:00:41.303506
Baseline 1543418663000.76774f4acec2ffd137338a13eb4e2ae30bb97daf 2018-11-29T01:03:57.564070 0:00:41.004426


Tests Summary

Status Group # # (B)
Performance Regressions 10 10
Performance Improvements 5 8
Added Tests 3 3
Unchanged Tests 288 285
Total Tests 306

Performance Regressions - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp 15.34% 13.671 15.768 - 15.26% -
random/pr12850.cpp 13.94% 31.015 35.338 - 24.38% -
random/pr36439.cpp 8.16% 26.636 28.811 - 18.57% -
random/pr28071.c 2.69% 67.879 69.707 - 3.90% -
random/pr69609.c 2.05% 158.552 161.803 - 4.73% -

Performance Regressions - size Δ Previous Current σ Δ (B) σ (B)
random/pr36498.cpp/elf/sections/text 15.17% 371.14 KB 427.46 KB - 11.52% -
random/pr36439.cpp/elf 8.21% 1.63 MB 1.76 MB - 11.74% -
random/pr12392.cpp/elf/sections/text 6.91% 355.49 KB 380.04 KB - -1.66% -
random/pr12850.cpp/elf 5.34% 3.42 MB 3.60 MB - 9.83% -
random/pr36498.cpp/elf 5.03% 1.59 MB 1.67 MB - 7.61% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/pr36439.cpp -4.94% 449.11 MB 426.94 MB - -6.06% -

Performance Improvements - size Δ Previous Current σ Δ (B) σ (B)
random/pr12850.cpp/elf/sections/text -26.94% 39.38 KB 28.77 KB - -15.20% -
random/pr36439.cpp/elf/sections/text -14.51% 6.52 KB 5.57 KB - -53.89% -
random/pr12392.cpp/elf -3.46% 1.10 MB 1.06 MB - -2.45% -
random/pr29433.cpp/elf -3.16% 91.54 KB 88.65 KB - -0.43% -

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/pr12850.cpp 24.38% 28.411 35.338 - 13.94% -
random/pr36439.cpp 18.57% 24.299 28.811 - 8.16% -
random/pr36498.cpp 15.26% 13.680 15.768 - 15.34% -
random/pr69609.c 4.73% 154.502 161.803 - 2.05% -
random/pr28071.c 3.90% 67.092 69.707 - 2.69% -
random/pr36262.c 2.28% 94.455 96.608 - 1.50% -

Performance Regressions - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf 11.74% 1.57 MB 1.76 MB - 8.21% -
random/pr36498.cpp/elf/sections/text 11.52% 383.31 KB 427.46 KB - 15.17% -
random/pr12850.cpp/elf 9.83% 3.28 MB 3.60 MB - 5.34% -
random/pr36498.cpp/elf 7.61% 1.55 MB 1.67 MB - 5.03% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp -8.49% 32.583 29.817 - 0.42% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp -7.45% 812.25 MB 751.72 MB - 0.94% -
random/pr36439.cpp -6.06% 454.50 MB 426.94 MB - -4.94% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr36439.cpp/elf/sections/text -53.89% 12.09 KB 5.57 KB - -14.51% -
random/pr12850.cpp/elf/sections/text -15.20% 33.93 KB 28.77 KB - -26.94% -
random/pr69609.c/elf -2.94% 1.32 MB 1.28 MB - 0.00% -
random/pr12392.cpp/elf -2.45% 1.09 MB 1.06 MB - -3.46% -
random/pr69609.c/elf/sections/text -2.37% 486.89 KB 475.37 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: 0.11s