This bug was fixed in the package unity-lens-applications -
6.10.0-0ubuntu1
---------------
unity-lens-applications (6.10.0-0ubuntu1) quantal-proposed; urgency=low
* New upstream release.
- Dash - 'More suggestions' icons in App Lens are too large (LP: #1052513)
- The look of price on 'Buy' button in the preview is inconsistent with
other lenses (LP: #1061630)
- Lots of IO during startup (LP: #1066816)
-- Lukasz 'sil2100' Zemczak <[email protected]> Tue, 16 Oct 2012
13:47:18 +0200
** Changed in: unity-lens-applications (Ubuntu Quantal)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1066816
Title:
Lots of IO during startup
Status in Unity Applications Lens:
Fix Committed
Status in unity-lens-applications 6.0 series:
Fix Committed
Status in “unity-lens-applications” package in Ubuntu:
Fix Released
Status in “unity-lens-applications” source package in Quantal:
Fix Released
Bug description:
[Impact]
Applications lens often loads very slowly, this is partially caused by
doing lots of IO reading from the Software center's databases.
[Test Case]
There's no easy way to test this, with the fix, apps lens should start
up to 15% faster, but this is hardware specific. Therefore the testing
needs to ensure the applications lens can still be used as it used to
before the fix.
[Regression potential]
- Previewing applications doesn't work
- Application rating is not displayed in the previews (or always shows 0
reviews).
=====================
Original description:
When the system is starting up and lenses are launched, apps lens
spends lots of time doing IO - opening the software center's xapian
databases plus the ratings database.
Since the ratings filter was removed from apps lens, we now need the
ratings database only when creating previews - therefore the ratings
database is ideal candidate for lazy initialization (only when a
preview is requested), which will improve the bad IO situation.
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