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Bug 235542 - portage-2.2_rc8 --jobs reverts back to compiling 1 package at a time whenever it hits mpfr.
Summary: portage-2.2_rc8 --jobs reverts back to compiling 1 package at a time whenever...
Alias: None
Product: Portage Development
Classification: Unclassified
Component: Core - Dependencies (show other bugs)
Hardware: AMD64 Linux
: High normal (vote)
Assignee: Portage team
Keywords: InVCS
Depends on:
Blocks: 210077
  Show dependency tree
Reported: 2008-08-23 16:16 UTC by Jon Duby
Modified: 2008-08-23 18:04 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

more parallellization (more_parallellization.patch,1.84 KB, patch)
2008-08-23 16:46 UTC, Zac Medico
Details | Diff

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Description Jon Duby 2008-08-23 16:16:35 UTC
I think the summary basically says it all. I have been playing around with the new version of portage, and I absolutely love the new --jobs feature that it provides. Just awesome. However something happens that causes it to revert back to compiling 1 package at a time whenever it gets to mpfr. For example, when doing an "emerge -e world" It will go down the list and compile as many packages in parallel as possible, until it gets to mpfr.Then after that it reverts back to compiling in serial again. I've verified this like 6 times on 4 different computers. It does it on old installations, and new installations,.I've tried rc6, rc7, and now rc8, and in all cases the problem persists. Seeing as how I've got over 700 packages installed, and mpfr is only about number 60, most of the packages still compile in serial due to this bug.

Reproducible: Always

Steps to Reproduce:
1.emerge -e world or
2.emerge -e system or
3.pull something in that uses mpfr as a dependency

Actual Results:  
mpfr causes portage to revert back to compiling one package at a time.

Expected Results:  
Portage should continue to compile as many packages in parallel as is possible
Comment 1 Zac Medico gentoo-dev 2008-08-23 16:46:54 UTC
Created attachment 163655 [details, diff]
more parallellization

This patch has been in svn for awhile and it's well tested.
Comment 2 Jon Duby 2008-08-23 17:35:31 UTC
Silly question... How do apply that patch? Can I add an epatch line to the ebuild? Sorry I'm not a programmer. I know next to nothing about these things.
Comment 3 Zac Medico gentoo-dev 2008-08-23 17:52:10 UTC
If the patch is saved as /tmp/more_parallellization.patch, then it can be applied as follows:

patch /usr/lib/portage/pym/_emerge/ /tmp/more_parallellization.patch
Comment 4 Jon Duby 2008-08-23 18:04:24 UTC
OK, I applied the patch and it seems to have done the trick. Problem is now solved.

Thank you so much for your patience with me. I'll mark this bug as solved.