From: Arnout Vandecappelle <arnout@mind.be>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 7/7] automatically set PARALLEL_JOBS when BR2_JLEVEL is 0
Date: Thu, 14 Jun 2012 01:27:05 +0200 [thread overview]
Message-ID: <4FD921C9.4020302@mind.be> (raw)
In-Reply-To: <1339466983-19786-8-git-send-email-ntl@pobox.com>
On 06/12/12 04:09, Nathan Lynch wrote:
> When BR2_JLEVEL is 0, set PARALLEL_JOBS to the number of CPUs
> detected. This allows one to more or less fully utilize the host
> system without manually tuning the configuration.
In my experience, you need 2 times the number of CPUs to fully utilize
the processor because most compilations have long iowait latencies.
Otherwise, looks good.
Regards,
Arnout
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286540
Essensium/Mind http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium BE 872 984 063 RPR Leuven
LinkedIn profile: http://www.linkedin.com/in/arnoutvandecappelle
GPG fingerprint: 7CB5 E4CC 6C2E EFD4 6E3D A754 F963 ECAB 2450 2F1F
next prev parent reply other threads:[~2012-06-13 23:27 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-12 2:09 [Buildroot] [PATCH 0/7] automatically determine job concurrency Nathan Lynch
2012-06-12 2:09 ` [Buildroot] [PATCH 1/7] introduce PARALLEL_JOBS build system variable Nathan Lynch
2012-06-12 2:09 ` [Buildroot] [PATCH 2/7] boost: change uses of BR2_JLEVEL to PARALLEL_JOBS Nathan Lynch
2012-06-12 2:09 ` [Buildroot] [PATCH 3/7] cmake: change use " Nathan Lynch
2012-06-12 2:09 ` [Buildroot] [PATCH 4/7] midori: " Nathan Lynch
2012-06-12 2:09 ` [Buildroot] [PATCH 5/7] qt: " Nathan Lynch
2012-06-12 2:09 ` [Buildroot] [PATCH 6/7] toolchain/crosstool-ng: " Nathan Lynch
2012-06-12 2:09 ` [Buildroot] [PATCH 7/7] automatically set PARALLEL_JOBS when BR2_JLEVEL is 0 Nathan Lynch
2012-06-13 23:27 ` Arnout Vandecappelle [this message]
2012-06-13 23:44 ` Nathan Lynch
2012-06-14 6:07 ` Peter Korsgaard
2012-06-14 6:16 ` Nathan Lynch
2012-06-14 8:56 ` Peter Korsgaard
2012-06-14 8:33 ` Richard Braun
2012-06-14 15:02 ` [Buildroot] [PATCHv2 " Nathan Lynch
2012-06-14 18:09 ` Baruch Siach
2012-06-16 19:37 ` [Buildroot] [PATCHv3 " Nathan Lynch
2012-06-24 9:13 ` [Buildroot] [PATCH 0/7] automatically determine job concurrency Peter Korsgaard
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