Con Kolivas returns with a new scheduler

Posted Sep 3, 2009 5:02 UTC (Thu) by k8to (guest, #15413)
In reply to: Con Kolivas returns with a new scheduler by smadu2
Parent article: Con Kolivas returns with a new scheduler

Please don't complain about that which you don't understand.

The Sound and Graphics have arguable unpleasantries (though all platforms do).

The scheduler isn't optimal for some workloads, but it's also not bad. Compare it to the windows or Mac scheduler both of which regularly do really unpleasant things for both server and workstation workloads.

The filesytems are 100% fine.

Con Kolivas returns with a new scheduler

Posted Sep 3, 2009 10:17 UTC (Thu) by Cato (guest, #7643) [Link] (1 responses)

I don't agree the filesystems are currently 100% fine - I've lost a lot of data on ext3, most likely due to the default use of write caching in the drive (not a filesystem issue but the default is dangerous for use with most filesystems) combined with a lack of journal checksumming (added in ext4). Also, until btrfs is stable, we won't have disk block level checksums, as in ZFS, which is the one thing that really makes me want to use OpenSolaris.

See http://lwn.net/Articles/350072/ and in particular the link to the University of Wisconsin paper linked within the thread - they looked at reiserfs, ext3 and JFS, and how they cope with disk failures.

Con Kolivas returns with a new scheduler

Posted Sep 3, 2009 11:53 UTC (Thu) by hppnq (guest, #14462) [Link]

From what I've read about your problems with filesystem X eating your data on platform Y, you are likely to be a victim on any combination of X and Y.

Just make proper backups and do not assume that any filesystem is going to keep your data, especially if you stress it enough.

Con Kolivas returns with a new scheduler

Posted Sep 3, 2009 17:02 UTC (Thu) by smadu2 (guest, #54943) [Link]

OK.