NetBSD Problem Report #57611
From martin@aprisoft.de Fri Sep 8 17:28:09 2023
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Date: Fri, 8 Sep 2023 19:27:59 +0200 (CEST)
From: martin@NetBSD.org
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To: gnats-bugs@NetBSD.org
Subject: ATF test runs on non-MULTIPROCESSOR machines take way too long
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>Number: 57611
>Category: toolchain
>Synopsis: ATF test runs on non-MULTIPROCESSOR machines take way too long
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: toolchain-manager
>State: open
>Class: change-request
>Submitter-Id: net
>Arrival-Date: Fri Sep 08 17:30:00 +0000 2023
>Originator: Martin Husemann
>Release: NetBSD 10.99.8
>Organization:
The NetBSD Foundation, Inc.
>Environment:
System: NetBSD martins.aprisoft.de 10.99.8 NetBSD 10.99.8 (GENERIC) #192: Thu Sep 7 19:20:26 CEST 2023 martin@martins.aprisoft.de:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
Full ATF test runs are extremely slow on real hardware even with CPUs of GHz
clock rate if there is only a single CPU. Most part of this is spent in
ipsec tests. Multiprocessor machines, even with slower CPUs, finish the
run way faster.
For example my evbarmv5 tests at https://www.netbsd.org/~martin/evbarm-atf
take ~6.5h for one run now (single core 1200.000 MHz ARM9E-S V5TE).
Compare a dual cpu sparc64 machine with slightly slower cpu (but beter
caches): https://www.netbsd.org/~martin/sparc64-atf/ which needs
like 3.5h (UltraSPARC-IIIi @ 1002 MHz).
Nearly sounds like our ATF tests would be CPU bound, but that is by far
not the case.
>How-To-Repeat:
s/a
>Fix:
Use atf vars to reduce the default number of tests or skip especially heavy
weight ones?
Check number of CPUs in heavy rump multi-host tests and simplify or skip?
(Contact us)
$NetBSD: query-full-pr,v 1.47 2022/09/11 19:34:41 kim Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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