Bug 666

Summary: Packaging takes an extremely long time
Product: [Build System, Metadata & Runtime] Meta-yocto Reporter: Joshua Lock - Disabled <josh>
Component: meta-yoctoAssignee: Richard Purdie <richard.purdie>
Status: VERIFIED FIXED QA Contact:
Severity: normal    
Priority: High CC: poky.bs.watcher, poky.watcher, sgw
Version: unspecified   
Target Milestone: 1.0 M4   
Hardware: x86   
OS: Multiple   
Whiteboard:
OS type for building Yocto: --- Type of Regression: ---
Verified: Documentation change: ---

Description Joshua Lock - Disabled 2011-01-20 07:55:31 UTC 
As pointed out by Gary on the Poky ML, packaging takes an extremely long time:

"Here's what I mean.  Building for my kernel and timing the
various steps, e.g.
   % time bitbake virtual/kernel -c compile

My kernel:
   compile            1m49s
   deploy             0m16s
   populate_sysroot   0m38s
   package           23m20s"
https://lists.yoctoproject.org/pipermail/poky/2011-January/002635.html

This performance impact may have been introduced by recent changes to the package.bbclass to use the rpmdeps command to discover per-file dependencies.
http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=54e3a82d9c14f3071db4a4f78312c0e31534696c
Comment 1 Joshua Lock - Disabled 2011-01-20 09:19:04 UTC 
A second theory is that the bitbake package/server split is causing a lot of context switches for the messages, during package creation - particularly for large packages like the the kernel. See: https://lists.yoctoproject.org/pipermail/poky/2011-January/002638.html
Comment 2 Richard Purdie 2011-02-01 09:57:45 UTC 
This was traced to the server end of the worker communication pipe using small buffers. We've increased the size of the pipe and performance improved dramatically.
Comment 3 Joshua Lock - Disabled 2011-07-25 08:27:04 UTC 
Verify fixed