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Machine Info

Fields

hardware None
os_version None

Parameters

cpu Architecture: aarch64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 80
On-line CPU(s) list: 0-79
Vendor ID: ARM
Model name: Neoverse-N1
Model: 1
Thread(s) per core: 1
Core(s) per socket: 80
Socket(s): 1
Stepping: r3p1
Frequency boost: disabled
CPU max MHz: 3000.0000
CPU min MHz: 1000.0000
BogoMIPS: 50.00
Flags: fp asimd evtstrm aes pmull sha1 sha2 crc32 atomics fphp asimdhp cpuid asimdrdm lrcpc dcpop asimddp ssbs
L1d cache: 5 MiB (80 instances)
L1i cache: 5 MiB (80 instances)
L2 cache: 80 MiB (80 instances)
NUMA node(s): 1
NUMA node0 CPU(s): 0-79
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: Not affected
Vulnerability Spec store bypass: Mitigation; Speculative Store Bypass disabled via prctl
Vulnerability Spectre v1: Mitigation; __user pointer sanitization
Vulnerability Spectre v2: Mitigation; CSV2, BHB
Vulnerability Srbds: Not affected
Vulnerability Tsx async abort: Not affected
memory MemTotal: 65264004 kB
Run Info

Fields

NameValue

Parameters

NameValue
as GNU assembler (GNU Binutils; openSUSE Tumbleweed) 2.39.0.20220810-1
Copyright (C) 2022 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 `aarch64-suse-linux'.
gcc gcc (GCC) 14.0.0 20230526 (experimental) 4fb66b2329319e9b47e89200d613b6f741a114fc
Copyright (C) 2023 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 4fb66b2329319e9b47e89200d613b6f741a114fc
glibc GNU C Library (GNU libc) stable release version 2.36 (git c804cd1c00).
Copyright (C) 2022 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 aarch64-suse-linux.
Compiled by GNU CC version 12.1.1 20220812 [revision 6b7d570a5001bb79e34c0d1626a8c7f55386dac7].
libc ABIs: UNIQUE ABSOLUTE
Minimum supported kernel: 3.7.0
For bug reporting instructions, please see:
<http://bugs.opensuse.org>.
glibc_location /lib64/libc.so.6
ld GNU ld (GNU Binutils; openSUSE Tumbleweed) 2.39.0.20220810-1
options None
reason None
uname Linux lnt-altra.arch.suse.cz 5.19.2-1-default #1 SMP PREEMPT_DYNAMIC Thu Aug 18 05:06:49 UTC 2022 (6c252ef) aarch64 aarch64 aarch64 GNU/Linux
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lnt-altra.gcc-trunk.Ofast test results

Run Order Start Time Duration
Current 1685065578000.4fb66b2329319e9b47e89200d613b6f741a114fc 2023-05-26T05:44:16.388756 0:00:36.859868
Previous 1685004513000.0d1e0d7433c2c625d67c58fca435b0ffeab8c8ba 2023-05-25T13:10:40.392341 0:00:37.025410
Baseline 1645583061000.2f0c93326f4695ee69cc566fb6f1e91b53219604 2022-02-23T06:28:25.686703 0:00:38.164755

Tests Summary

Status Group # # (B)
Performance Regressions 0 8
Performance Improvements 2 14
Added Tests 3 3
Unchanged Tests 229 209
Total Tests 234

Run-Over-Run Changes Detail

Performance Improvements - compile_time Δ Previous Current σ Δ (B) σ (B)
random/pr12392.cpp -2.44% 82.633 80.618 - -28.34% -

Performance Improvements - mem_bytes Δ Previous Current σ Δ (B) σ (B)
random/empty.c -2.02% 21.49 MB 21.05 MB - 7.16% -

Added Tests - size
random/empty.C/elf/sections/text
random/empty.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/pr60243.c 9.18% 85.776 93.648 - -0.12% -
random/pr36439.cpp 4.22% 41.979 43.751 - 1.03% -
random/pr12850.cpp 2.63% 47.271 48.513 - 0.06% -

Performance Regressions - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr60243.c 13.29% 2.10 GB 2.38 GB - -0.01% -
random/empty.C 7.63% 21.51 MB 23.15 MB - 0.30% -
random/empty.c 7.16% 19.65 MB 21.05 MB - -2.02% -
random/pr12850.cpp 4.07% 628.74 MB 654.32 MB - 0.03% -
random/pr36439.cpp 3.39% 490.07 MB 506.70 MB - 0.03% -

Performance Improvements - compile_time Δ (B) Baseline Current σ (B) Δ σ
random/pr28071.c -36.46% 114.119 72.517 - 0.57% -
random/pr36262.c -33.00% 57.078 38.240 - 1.13% -
random/pr38518.c -32.95% 56.972 38.200 - 0.82% -
random/pr12392.cpp -28.34% 112.506 80.618 - -2.44% -
random/pr39326.c -11.43% 125.913 111.522 - -1.19% -
random/pr70614.c -6.70% 1.229 1.146 - 0.56% -
random/pr26854-2.c -5.19% 74.457 70.594 - 0.80% -
random/pr29433.cpp -4.60% 3.274 3.123 - -0.39% -

Performance Improvements - mem_bytes Δ (B) Baseline Current σ (B) Δ σ
random/pr39326.c -27.23% 1009.80 MB 734.84 MB - 0.32% -
random/pr29433.cpp -7.58% 378.46 MB 349.79 MB - -0.38% -
random/pr12392.cpp -5.28% 577.61 MB 547.12 MB - 0.03% -

Performance Improvements - size Δ (B) Baseline Current σ (B) Δ σ
random/pr12392.cpp/elf/sections/text -19.69% 476.20 KB 382.45 KB - 0.00% -
random/pr12392.cpp/elf -9.22% 983.49 KB 892.78 KB - 0.00% -
random/pr29433.cpp/elf -3.64% 96.12 KB 92.62 KB - 0.00% -

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

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