Re: [tycho-user] Tycho build got slow

[Christian Soltenborn <csoltenborn@xxxxxx>]

Hi,

the problems reported in the bug you cited have become urgent at the
beginning of September, and seem to have been caused by switching to
tycho 0.13.0. Since I always was on tycho 0.13.0, and since the slow
down of my build did not start before September 24 (a build on September
23 was fine), my guess was that this is not related (I had seen that bug
when googling for my problem). Could it be that my build never was
"fine" and now even got worse? :-)

However, could you quickly give me some hints on how to run my build
under a profiler?

Cheers,
Christian


Am 25.09.2011 14:10, schrieb Igor Fedorenko:
> We are tracking this problem as bug 356888 [1]. It would be helpful if
> you could run your build under profiler and see where the time is spent.
> 
> [1] https://bugs.eclipse.org/bugs/show_bug.cgi?id=356888
> 
> -- 
> Regards,
> Igor
> 
> On 11-09-25 2:34 AM, Christian Soltenborn wrote:
>> Hi everybody,
>>
>> I'm noticing a performance change in my builds: I started using tycho
>> with version 0.13.0.SNAPSHOT, and switching to 0.13.0 did not bring any
>> performance changes as expected. Before, the tycho part of my build took
>> 29mins overall (and I'm not sure whether this is already slow - I always
>> felt it was, but didn't really care. My build consists of about 130
>> Eclipse plug-ins and features and results in a p2 repository of about
>> 21MB).
>>
>> However, with the build from 2011-9-24, 10am German time, my builds take
>> much longer: The tycho part now takes 64mins, and the resolving alone
>> takes 48mins (i.e., the part from starting maven up to the point where
>> the Reactor Build Order is announced).
>>
>> I'm using an explicit target platform within my tycho build. I noticed
>> that some eclipse plug-ins seemed to be downloaded for the first time in
>> the build mentioned above (see  log output below). This doesn't happen
>> any more now, but the build is still slow.
>>
>> As far as I know, Indigo SR1 is released these days. Is this what has
>> been downloaded in the mentioned build? Might this be related?
>>
>> Let me know if you need more info about my build, and whether I should
>> file a bug.
>>
>> Cheers,
>> Christian
>>
>>
>> Log output:
>>
>> [INFO] Resolving target platform for project MavenProject:
>> de.upb.dmm:de.gupro.gxl:1.0.0-SNAPSHOT @ C:\Program Files
>> (x86)\Jenkins\workspace\DMM-Tooling\de.gupro.gxl\pom.xml
>> [INFO] Downloading org.eclipse.osgi
>> [INFO] [INFO] Downloading org.eclipse.equinox.registry
>> Downloading org.eclipse.equinox.preferences
>> [INFO] Fetching download.php (0B of 1,24kB at 0B/s) from
>> http://www.eclipse.org/downloads/download.php?file=/eclipse/updates/3.7/R-3.7.1-201109091335&format=xml&countryCode=de&timeZone=1&format=xml
>>
>> [INFO] Fetching download.php (1,75kB of 1,24kB at 0B/s) from
>> http://www.eclipse.org/downloads/download.php?file=/eclipse/updates/3.7/R-3.7.1-201109091335&format=xml&countryCode=de&timeZone=1&format=xml
>>
>> [INFO] Fetching
>> org.eclipse.equinox.registry_3.5.101.R37x_v20110810-1611.jar.pack.gz (0B
>> of 66,67kB at 0B/s) from
>> http://linorg.usp.br/eclipse/eclipse/updates/3.7/R-3.7.1-201109091335/plugins/
>>
>> [INFO] 1 operation remaining.
>> [INFO] Fetching
>> org.eclipse.equinox.registry_3.5.101.R37x_v20110810-1611.jar.pack.gz
>> (2,62kB of 66,67kB at 0B/s) from
>> http://linorg.usp.br/eclipse/eclipse/updates/3.7/R-3.7.1-201109091335/plugins/
>>
>> [INFO] Fetching
>> org.eclipse.equinox.preferences_3.4.1.R37x_v20110725.jar.pack.gz (0B of
>> 43,58kB at 0B/s) from
>> http://linorg.usp.br/eclipse/eclipse/updates/3.7/R-3.7.1-201109091335/plugins/
>>
>> ...
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