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From: Peter Korsgaard <peter@korsgaard.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 2/2] core/instrumentation: shave minutes off the build time
Date: Mon, 19 Mar 2018 17:53:15 +0100	[thread overview]
Message-ID: <87sh8wknwk.fsf@dell.be.48ers.dk> (raw)
In-Reply-To: <1521477052.10662.140.camel@impinj.com> (Trent Piepho's message of "Mon, 19 Mar 2018 16:30:52 +0000")

>>>>> "Trent" == Trent Piepho <tpiepho@impinj.com> writes:

Hi,

 > After fixing s/L/l/, here are the timings for a 15 minute build:

 > configure                510.29
 > build                    166.12
 > extract                   45.53
 > other                     43.88
 > hostinstall               35.43
 > check_host_rpath          33.37
 > check_bin_arch            28.30
 > targetinstall             23.37
 > stageinstall              15.97
 > step_pkg_size              9.49

 > Without ccache, the build step would be somewhat longer.

Looks good! (well, the configure step time is horrible).

 >> Now, we also change the way we handle symlinks. Previously, we would
 >> hash the file pointed to by the symlink. Now, we only look at the mtime
 >> of the symlink itself, which still detects modifications.

 > This patch also fixes a problem the previous system had w.r.t. broken
 > symlinks.  They did not show up as owned by any packages.  Now they are
 > owned by the package that creates the link.  It also means a package
 > that replaced a file which was linked to does not also appear,
 > incorrectly, to replace all the links as well.

Ahh, ok - Good.

-- 
Bye, Peter Korsgaard

      parent reply	other threads:[~2018-03-19 16:53 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-15 20:35 [Buildroot] [PATCH 0/2] core/instrumentation: optimisations Yann E. MORIN
2018-03-15 20:35 ` [Buildroot] [PATCH 1/2] core/intrumetnation: don't spawn to get seconds-since-EPOCH Yann E. MORIN
2018-03-17 11:54   ` Cam Hutchison
2018-03-18 16:16     ` Yann E. MORIN
2018-03-19 16:15       ` Trent Piepho
2018-03-15 20:35 ` [Buildroot] [PATCH 2/2] core/instrumentation: shave minutes off the build time Yann E. MORIN
2018-03-18 14:14   ` Peter Korsgaard
2018-03-18 16:15     ` Yann E. MORIN
2018-03-18 16:33       ` Peter Korsgaard
2018-03-22 16:41         ` Thomas De Schampheleire
2018-03-22 16:50           ` Thomas Petazzoni
2018-03-22 17:11             ` Thomas De Schampheleire
2018-03-22 17:25               ` Trent Piepho
2018-03-22 22:39             ` Peter Korsgaard
2018-03-23 22:39           ` Arnout Vandecappelle
2018-03-23 23:03             ` Thomas Petazzoni
2018-03-19 16:30   ` Trent Piepho
2018-03-19 16:50     ` Thomas Petazzoni
2018-03-19 20:04       ` Peter Korsgaard
2018-03-20 21:47         ` Trent Piepho
2018-03-19 16:53     ` Peter Korsgaard [this message]

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