Comments on: Current Problems With Ubuntu Hardy http://blog.charcoalphile.com/2008/05/26/current-problems-with-ubuntu-hardy/ On Databases, Recovery, Tech Thu, 09 Sep 2010 08:30:37 +0000 http://wordpress.org/?v=2.2.1 By: admin http://blog.charcoalphile.com/2008/05/26/current-problems-with-ubuntu-hardy/#comment-456 admin Mon, 26 May 2008 22:19:06 +0000 http://blog.charcoalphile.com/2008/05/26/current-problems-with-ubuntu-hardy/#comment-456 I'm using ReiserFS. In addition, I ran all my tests with nothing running, except for GNOME. Performance is literally 10x slower in some areas, compared to Feisty. I’m using ReiserFS. In addition, I ran all my tests with nothing running, except for GNOME. Performance is literally 10x slower in some areas, compared to Feisty.

]]> By: Ian Eure http://blog.charcoalphile.com/2008/05/26/current-problems-with-ubuntu-hardy/#comment-455 Ian Eure Mon, 26 May 2008 22:12:51 +0000 http://blog.charcoalphile.com/2008/05/26/current-problems-with-ubuntu-hardy/#comment-455 The Firefox problem is a Firefox problem. See http://digg.com/linux_unix/Firefox_3_has_system_killing_performance_problem_for_Linux In short, FF3 uses SQLite to store it's bookmarks, history, etc. SQLite calls fsync() to flush buffers to disk to avoid DB corruption. These happen extremely often, which causes heavy I/O congestion. Ext3 exacerbates the issue. You might find that your DB performance increases if you quit Firefox. A seq scan will hit disk, and Firefox is there tying up your I/O. The Firefox problem is a Firefox problem. See http://digg.com/linux_unix/Firefox_3_has_system_killing_performance_problem_for_Linux

In short, FF3 uses SQLite to store it’s bookmarks, history, etc. SQLite calls fsync() to flush buffers to disk to avoid DB corruption. These happen extremely often, which causes heavy I/O congestion. Ext3 exacerbates the issue.

You might find that your DB performance increases if you quit Firefox. A seq scan will hit disk, and Firefox is there tying up your I/O.

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