On Tue, Dec 20, 2016 at 11:22:46AM +0100, Andreas Boll wrote: > Package: libtool > Version: 2.4.6-2 > Severity: important > Tags: upstream fixed-upstream > Forwarded: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=20006 > > Dear Maintainer, > > libtool 2.4.6-0.1 has introduced a performance regression which results > in significant slowdown in compile time. Version 2.4.6-2 is still > affected. > > Especially buildds of slower arches like mips* and arm* suffer a lot > from this performance regression. Here are a few examples how mesa is > affected by this bug: > > [2016-02-07] Accepted libtool 2.4.6-0.1 (source amd64 all) into unstable > > mipsel: https://buildd.debian.org/status/logs.php?pkg=mesa&arch=mipsel > 11.1.1-2 (sid) Maybe-Successful 2016-01-15 19:04:32 mipsel-aql-02 > 50m > 11.1.2-1 (sid) Maybe-Successful 2016-02-11 14:30:46 mipsel-aql-02 > 1h 22m > > armhf: https://buildd.debian.org/status/logs.php?pkg=mesa&arch=armhf > 11.1.1-2 (sid) Maybe-Successful 2016-01-15 19:15:32 hoiby 34m > 11.1.2-1 (sid) Maybe-Successful 2016-02-11 12:39:21 hoiby 52m > > i386: https://buildd.debian.org/status/logs.php?pkg=mesa&arch=i386 > 11.1.1-2 (sid) Maybe-Successful 2016-01-15 18:20:15 x86-grnet-01 > 7m > 11.1.2-1 (sid) Maybe-Successful 2016-02-11 11:54:33 x86-grnet-01 > 10m > > x32: https://buildd.debian.org/status/logs.php?pkg=mesa&arch=x32 > 11.1.1-2 (sid) Maybe-Successful 2016-01-15 18:36:30 physik 17m > 11.1.2-1 (sid) Maybe-Successful 2016-02-11 12:36:45 physik 28m > > or systemd on x32: > https://buildd.debian.org/status/logs.php?pkg=systemd&arch=x32 > 228-6 (sid) Maybe-Successful 2016-02-04 12:42:54 physik 42m > 229-1 (sid) Maybe-Successful 2016-02-11 23:35:48 physik 1h 3m > > > This bug has been reported to upstream and has been fixed already [1]. > There's also a blog post about this issue [2]. > Unfortunately upstream hasn't released a new upstream release with those > fixes yet. > > Please cherry-pick the following three patches from upstream master > branch to mitigate the excessive sed forking: > > http://git.savannah.gnu.org/cgit/libtool.git/commit/?id=32f0df9835ac15ac17e04be57c368172c3ad1d19 > http://git.savannah.gnu.org/cgit/libtool.git/commit/?id=16dbc070d32e6d4601cb5878dfdf69f2e29c84e1 > http://git.savannah.gnu.org/cgit/libtool.git/commit/?id=9187e9a231e0a06cc29c336857e95f07f855b2c9 > > With those patches applied, libtool 2.4.6 still isn't as fast as 2.4.2 > was, but it's much better than the unpatched version. > > > Thanks, > Andreas > > [1] https://debbugs.gnu.org/cgi/bugreport.cgi?bug=20006 > [2] > https://harald.hoyer.xyz/2015/03/05/libtool-getting-rid-of-180000-sed-forks/
Hi, Friendly one year ping: I was hoping that there would be a new upstream release with those regression fixes included in the meantime. Unfortunately there still hasn't been any new release since 2015. Also the upstream git repository looks pretty silent [1]. So it doesn't look like that there'll be a new release anytime soon. Any chance to cherry-pick those patches and upload them to experimental or unstable? Thanks, Andreas [1] https://git.savannah.gnu.org/cgit/libtool.git/log/
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