bugSynaptic - Bugs: bug #30755, synaptic slow: description...


bug #30755: synaptic slow: description search, first install, sub view change

Submitter:  None
Submitted:  Thu 12 Aug 2010 01:21:24 AM UTC
Category:  None Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open
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Thu 12 Aug 2010 05:43:37 PM UTC, comment #1: 

Thanks a lot for your patch.

Could you please redo it with diff -u (or bzr diff) ? Or can you mail me the files that you modified and I will do the diff myself. The changes sound very interessting!

Michael Vogt <mvogt>
Group administrator
Thu 12 Aug 2010 01:21:24 AM UTC, original submission:  

Synaptic package manager is really slow application,
I wrote path which solves several problems like:
- slow search in descriptions and maintainers
- slow sub view change
- slow first instalation "Reading database..."

I've added:

  • background preload after openCache:

    -preload maintainers and descriptions (sort orders on file and offset) (time 900ms; 300ms if not first run)
    -preload /var/lib/dpkg/info/*.list files needed by dpkg (time 10s with nice -19; 300ms if not first run)

        -first search "name and description" (time from 12s to 200ms)
        -first "Reading database...": few times faster

  • remove unnecessary refreshView after subview list click

    Gain: click on static subview list loads package list immediately (not after 300ms-400ms)

I did not really test my code (various environments etc).

My changes are in path, I've worked on synaptic 0.63.1ubuntu7 sources.



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Attach Files:

Attached Files
file #21472:  pathlong.diff added by mvogt (23KiB - text/plain - patch from Kamil with diff -u (many thanks))
file #21200:  path.diff added by None (14KiB - text/x-patch)


Depends on the following items: None found

Items that depend on this one: None found


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  • -email is unavailable- added by mvogt (Posted a comment)

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    Follow 2 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2010-09-16 mvogt Attached File- Added pathlong.diff, #21472
    2010-08-12 None Attached File- Added path.diff, #21200

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