[jira] [Commented] (MESOS-3161) Document using the gold linker for faster development on linux.

["Deshi Xiao (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MESOS-3161?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15125885#comment-15125885 ] 

Deshi Xiao commented on MESOS-3161:
-----------------------------------

+1 on documents.

> Document using the gold linker for faster development on linux.
> ---------------------------------------------------------------
>
>                 Key: MESOS-3161
>                 URL: https://issues.apache.org/jira/browse/MESOS-3161
>             Project: Mesos
>          Issue Type: Improvement
>          Components: build, documentation
>            Reporter: Benjamin Mahler
>              Labels: newbie
>
> The [gold linker|https://en.wikipedia.org/wiki/Gold_(linker)] seems to provide a decent speedup (about ~20%) on a parallel build. From a quick test:
> {noformat: title=timings for make check -j24 GTEST_FILTER="" w/ 24 hyperthreaded cores}
> gold:
> real	7m18.526s
> user	81m21.213s
> sys	5m17.224s
> default ld:
> real	9m7.908s
> user	85m13.466s
> sys	5m52.199s
> {noformat}
> On CentOS 5 w/ devtoolset-2:
> {noformat}
> sudo /usr/sbin/alternatives --altdir /opt/rh/devtoolset-2/root/etc/alternatives --admindir /opt/rh/devtoolset-2/root/var/lib/alternatives --set ld /opt/rh/devtoolset-2/root/usr/bin/ld.gold
> {noformat}
> On Ubuntu:
> {noformat}
> sudo update-alternatives --install /usr/bin/ld ld /usr/bin/gold 1
> {noformat}
> Ideally we could this out on the website, with instructions for each OS.



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