Comments on: Performance tip of the day http://weblog.savanne.be/153-performance-tip-of-the-day Tue, 07 Feb 2012 17:19:43 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: Andrew Conkling http://weblog.savanne.be/153-performance-tip-of-the-day#comment-15256 Andrew Conkling Fri, 30 Jan 2009 01:14:17 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-15256 Marius: Jeremy's tip about it running this command with Firefox running still is sorta valid; it won't optimize Firefox's databases, but it won't harm them either. So if you're setting up a cron job, it will do its thing on whichever databases are available. It's not the kind of thing you'd need to run every day, so just make sure you have Firefox (or your other apps) closed at least sometimes. ;) Also, this wouldn't pick up any sqlite databases that don't end in ".sqlite", so there could be further gains to be made here. For example, I ran this on Banshee's database (~/.config/banshee-1/banshee.db) and found a decent performance gain in the application. Marius: Jeremy’s tip about it running this command with Firefox running still is sorta valid; it won’t optimize Firefox’s databases, but it won’t harm them either.

So if you’re setting up a cron job, it will do its thing on whichever databases are available. It’s not the kind of thing you’d need to run every day, so just make sure you have Firefox (or your other apps) closed at least sometimes. ;)

Also, this wouldn’t pick up any sqlite databases that don’t end in “.sqlite”, so there could be further gains to be made here. For example, I ran this on Banshee’s database (~/.config/banshee-1/banshee.db) and found a decent performance gain in the application.

]]> By: Marius Scurtescu http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14633 Marius Scurtescu Fri, 09 Jan 2009 17:51:21 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14633 @Jeremy Not sure about sqlite having correct locking and database semantics, but you definitely get an error if Firefox is running: "SQL error: database is locked". Got that on both Linux and Mac OS X. @Jeremy

Not sure about sqlite having correct locking and database semantics, but you definitely get an error if Firefox is running: “SQL error: database is locked”.

Got that on both Linux and Mac OS X.

]]> By: SchAmane http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14590 SchAmane Thu, 08 Jan 2009 12:26:47 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14590 WOW, thanks for this tip! WOW, thanks for this tip!

]]> By: Bill http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14542 Bill Wed, 07 Jan 2009 15:15:01 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14542 There should be an addon that does this once a month or so, as a stopgap before it's added into Firefox (or Gecko) proper. There should be an addon that does this once a month or so, as a stopgap before it’s added into Firefox (or Gecko) proper.

]]> By: Pacho Ramos http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14540 Pacho Ramos Wed, 07 Jan 2009 13:34:56 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14540 OK, thanks for the info :-) OK, thanks for the info :-)

]]> By: Jeremy http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14539 Jeremy Wed, 07 Jan 2009 12:24:17 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14539 sqlite has correct locking and database semantics, so you should be able to do this with firefox running. sqlite has correct locking and database semantics, so you should be able to do this with firefox running.

]]> By: Pacho Ramos http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14537 Pacho Ramos Wed, 07 Jan 2009 09:49:10 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14537 To Richard Rebel: About adding it to a cron job, Should script check if any firefox instance is running? Would it break "something" if it's run while firefox is running? Thanks for information To Richard Rebel:

About adding it to a cron job, Should script check if any firefox instance is running? Would it break “something” if it’s run while firefox is running?

Thanks for information

]]> By: Lee Willis http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14536 Lee Willis Wed, 07 Jan 2009 09:18:09 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14536 On Windows you'll probably have to install sqlite3 (http://www.sqlite.org/download.html) Then (Assuming that the binary is in your Windows path) you can change to the Mozilla Profile directory C:Documents and Settings<Your Windows Username>Application DataMozillaFirefoxProfiles<random digits>.default/ and run: sqlite3 places.sqlite "VACUUM;" Replacing places.sqlite with the file you want to compact - sorry I'm not familiar enough with Windows scripting to work out how to automatically do it for every file - for me the only large sqlite files were: - places.sqlite - urlclassifier2.sqlite On Windows you’ll probably have to install sqlite3 (http://www.sqlite.org/download.html)

Then (Assuming that the binary is in your Windows path) you can change to the Mozilla Profile directory

C:Documents and SettingsApplication DataMozillaFirefoxProfiles.default/

and run:

sqlite3 places.sqlite “VACUUM;”

Replacing places.sqlite with the file you want to compact – sorry I’m not familiar enough with Windows scripting to work out how to automatically do it for every file – for me the only large sqlite files were:
- places.sqlite
- urlclassifier2.sqlite

]]> By: jshare http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14534 jshare Wed, 07 Jan 2009 06:28:09 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14534 For windows: * get sqlite3 from here: * http://www.sqlite.org/sqlite-3_6_7.zip * http://www.sqlite.org/sqlitedll-3_6_7.zip * unzip them both into c:windowssystem32 * cd to your profile directory (there may be an easier way to specify this from the commandline, but I don't know cmd globbing that well) * for %f in (*sqlite) do sqlite3 %f "VACUUM;" * note: quotes instead of apostrophes For windows:
* get sqlite3 from here:
* http://www.sqlite.org/sqlite-3_6_7.zip
* http://www.sqlite.org/sqlitedll-3_6_7.zip
* unzip them both into c:windowssystem32
* cd to your profile directory (there may be an easier way to specify this from the commandline, but I don’t know cmd globbing that well)
* for %f in (*sqlite) do sqlite3 %f “VACUUM;”
* note: quotes instead of apostrophes

]]> By: Derek A. Muenzel, Sr. http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14533 Derek A. Muenzel, Sr. Wed, 07 Jan 2009 05:43:03 +0000 http://weblog.savanne.be/153-performance-tip-of-the-day#comment-14533 Not a complete windows HOWTO but this will get you there: 1) Download the Precompiled Binaries For Windows http://www.sqlite.org/download.html. 2) I extracted the file to C:bin. 3) Change into the directory containing the .sqlite files. Example: cd C:Documents and SettingsrootApplication DateMozillaFirefoxl89ueo7d.default 4) Get a before shot: dir *.sqlite 5) Run the VACUUM: for %f in (*.sqlite) do C:binsqlite3.exe %f "VACUUM;" 6) Get an after shot: dir *sqlite My results: BEFORE 11/25/2008 01:39 PM 7,168 content-prefs.sqlite 01/04/2009 08:15 PM 178,176 cookies.sqlite 01/06/2009 11:54 PM 744,448 downloads.sqlite 01/06/2009 11:54 PM 576,512 formhistory.sqlite 01/02/2009 05:14 PM 191,488 kongregate.sqlite 11/03/2008 02:37 PM 2,048 permissions.sqlite 01/06/2009 11:54 PM 50,679,808 places.sqlite 08/06/2008 01:11 PM 2,048 search.sqlite 12/30/2008 05:43 PM 4,096 webappsstore.sqlite AFTER 01/07/2009 12:38 AM 7,168 content-prefs.sqlite 01/07/2009 12:38 AM 99,328 cookies.sqlite 01/07/2009 12:38 AM 389,120 downloads.sqlite 01/07/2009 12:38 AM 558,080 formhistory.sqlite 01/07/2009 12:38 AM 186,368 kongregate.sqlite 01/07/2009 12:38 AM 2,048 permissions.sqlite 01/07/2009 12:39 AM 42,889,216 places.sqlite 01/07/2009 12:39 AM 2,048 search.sqlite 01/07/2009 12:39 AM 2,048 webappsstore.sqlite Not a complete windows HOWTO but this will get you there:

1) Download the Precompiled Binaries For Windows http://www.sqlite.org/download.html.

2) I extracted the file to C:bin.

3) Change into the directory containing the .sqlite files. Example: cd C:Documents and SettingsrootApplication DateMozillaFirefoxl89ueo7d.default

4) Get a before shot: dir *.sqlite

5) Run the VACUUM: for %f in (*.sqlite) do C:binsqlite3.exe %f “VACUUM;”

6) Get an after shot: dir *sqlite

My results:
BEFORE
11/25/2008 01:39 PM 7,168 content-prefs.sqlite
01/04/2009 08:15 PM 178,176 cookies.sqlite
01/06/2009 11:54 PM 744,448 downloads.sqlite
01/06/2009 11:54 PM 576,512 formhistory.sqlite
01/02/2009 05:14 PM 191,488 kongregate.sqlite
11/03/2008 02:37 PM 2,048 permissions.sqlite
01/06/2009 11:54 PM 50,679,808 places.sqlite
08/06/2008 01:11 PM 2,048 search.sqlite
12/30/2008 05:43 PM 4,096 webappsstore.sqlite

AFTER
01/07/2009 12:38 AM 7,168 content-prefs.sqlite
01/07/2009 12:38 AM 99,328 cookies.sqlite
01/07/2009 12:38 AM 389,120 downloads.sqlite
01/07/2009 12:38 AM 558,080 formhistory.sqlite
01/07/2009 12:38 AM 186,368 kongregate.sqlite
01/07/2009 12:38 AM 2,048 permissions.sqlite
01/07/2009 12:39 AM 42,889,216 places.sqlite
01/07/2009 12:39 AM 2,048 search.sqlite
01/07/2009 12:39 AM 2,048 webappsstore.sqlite

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