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From "Benjamin Bannier (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MESOS-4271) Consider replacing libtool with dolt to speed up build
Date Tue, 12 Jan 2016 13:17:39 GMT

     [ https://issues.apache.org/jira/browse/MESOS-4271?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Benjamin Bannier updated MESOS-4271:
------------------------------------
    Sprint:   (was: Mesosphere Sprint 26)

> Consider replacing libtool with dolt to speed up build
> ------------------------------------------------------
>
>                 Key: MESOS-4271
>                 URL: https://issues.apache.org/jira/browse/MESOS-4271
>             Project: Mesos
>          Issue Type: Improvement
>            Reporter: Benjamin Bannier
>            Assignee: Benjamin Bannier
>            Priority: Minor
>              Labels: build, mesosphere
>
> Mesos uses a pretty standard autotools setup for the build so that {{libtool}} is used
extensively to abstract away the aspects of library creation (both compiling source files,
and creating the libraries). For some versions of {{libtool}} its invocation can add considerably
to the overall build time.
> Dolt provides a much more condensed implementation of {{libtool}}'s functionality for
modern platforms (<100 locs vs ~10 klocs), so that it can run much faster. We should investigate
whether activating dolt makes sense.
> I tested dolt under OS X 10.10.5. I first primed ccache and then rebuilt mesos-related
objects,
> {code}
> ./configure --disable-python --disable-java  # benchmark mostly C & C++ file compile
and link
> make check GTEST_FILTER=''                   # prime ccache
> make mostlyclean                             # remove most mesos objects and libs
> make -jN check GTEST_FILTER=''               # rebuild
> {code}
> ||                    |  user [s]     | real [s]        | sys [s]    ||
> | make -j10 (dolt)    |  42.8±0.1 |  54.3±0.2 |  34.1±0.2 |
> | make -j10 (libtool) |  65.6±0.3 | 148.7±1.1 | 108.5±1.0 |
> | make -j1 (dolt)     |  76.9±0.3 |  45.5±0.1 |  27.1±0.1 |
> | make -j1 (libtool)  | 168.2±2.3 |  97.5±1.5 |  75.8±1.3 |



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