Re: Horrible btrfs performance on cold cache

2010-10-11 Thread Calvin Walton
On Mon, 2010-10-11 at 03:30 +0300, Felipe Contreras wrote: Hi, I use btrfs on most of my volumes on my laptop, and I've always felt booting was very slow, but definitely sure is slow, is starting up Google Chrome: encrypted ext4: ~20s btrfs: ~2:11s I have tried different things to

Re: Horrible btrfs performance on cold cache

2010-10-11 Thread Chester
I think I read/heard somewhere that snapshots can cause pretty bad fragmentation, because it causes your system to write changes to files to random locations on the disk, leaving the original inodes intact.. For that reason, I have replaced the directories ~/.config/chromium , /var , /usr/portage

Re: Horrible btrfs performance on cold cache

2010-10-11 Thread Felipe Contreras
On Mon, Oct 11, 2010 at 7:23 PM, Chester somethingsome2...@gmail.com wrote: I think I read/heard somewhere that snapshots can cause pretty bad fragmentation But I'm not using snapshots. -- Felipe Contreras -- To unsubscribe from this list: send the line unsubscribe linux-btrfs in the body of

Re: Horrible btrfs performance on cold cache

2010-10-11 Thread Felipe Contreras
On Mon, Oct 11, 2010 at 6:46 PM, Calvin Walton calvin.wal...@gmail.com wrote: On Mon, 2010-10-11 at 03:30 +0300, Felipe Contreras wrote: I use btrfs on most of my volumes on my laptop, and I've always felt booting was very slow, but definitely sure is slow, is starting up Google Chrome:

Horrible btrfs performance on cold cache

2010-10-10 Thread Felipe Contreras
Hi, I use btrfs on most of my volumes on my laptop, and I've always felt booting was very slow, but definitely sure is slow, is starting up Google Chrome: encrypted ext4: ~20s btrfs: ~2:11s I have tried different things to find out exactly what is the issue, but haven't quite found it yet.