Bug 2419 - [Performance] Rootfs generation is inefficient (license checks)
Summary: [Performance] Rootfs generation is inefficient (license checks)
Status: VERIFIED FIXED
Alias: None
Product: Meta-yocto
Classification: Build System, Metadata & Runtime
Component: meta-yocto (show other bugs)
Version: 1.3
Hardware: x86 Multiple
: Medium normal
Target Milestone: 1.3 M1
Assignee: Beth Flanagan
QA Contact:
URL:
Whiteboard: (P1)(Covered by current QA test plan)...
Depends on:
Blocks:
 
Reported: 2012-05-04 13:27 UTC by Richard Purdie
Modified: 2012-06-20 13:04 UTC (History)
7 users (show)

See Also:
OS type for building Yocto: ---
Type of Regression: ---
Verified:
Documentation change: ---

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Description Richard Purdie 2012-05-04 13:27:50 UTC 
The license checks made at do_rootfs time are a fork bomb and extremely inefficient. We should remove the overhead of an exec call of "find" so many times in particular and use shell expansion instead or similar.
Comment 1 Beth Flanagan 2012-05-11 19:16:13 UTC 
This is going to be a rewrite of that function. I'm part way through it now.
Comment 2 Jiajun Xu 2012-05-21 08:12:59 UTC 
The feature could be covered by current QA performance testing.
Comment 5 Laurentiu Serban 2012-06-20 08:53:05 UTC 
The build time for core-image-sato improved to 95 minutes (previous was 110 minutes)
Comment 6 Beth Flanagan 2012-06-20 11:42:43 UTC 
(In reply to comment #5)
> The build time for core-image-sato improved to 95 minutes (previous was 110
> minutes)

do we know what the do_rootfs time was?
Comment 7 Laurentiu Serban 2012-06-20 13:04:25 UTC 
4 minutes 43 seconds for do_rootfs and do_build