Re: Abysmal Performance

2011-06-22 Thread Henning Rohlfs
On Tue, 21 Jun 2011 11:24:11 -0400, Calvin Walton wrote: On Mon, 2011-06-20 at 23:51 +0200, Henning Rohlfs wrote: Hello, I've migrated my system to btrfs (raid1) a few months ago. Since then the performance has been pretty bad, but recently it's gotten unbearable: a simple sync called

Re: Abysmal Performance

2011-06-21 Thread Henning Rohlfs
On Mon, 20 Jun 2011 20:12:16 -0400, Josef Bacik wrote: On 06/20/2011 05:51 PM, Henning Rohlfs wrote: Hello, I've migrated my system to btrfs (raid1) a few months ago. Since then the performance has been pretty bad, but recently it's gotten unbearable: a simple sync called while the system

Re: Abysmal Performance

2011-06-21 Thread Henning Rohlfs
On Tue, 21 Jun 2011 10:00:59 +0200, Sander wrote: Henning Rohlfs wrote (ao): - space_cache was enabled, but it seemed to make the problem worse. It's no longer in the mount options. space_cache is a one time mount option which enabled space_cache. Not supplying it anymore as a mount option

Re: Abysmal Performance

2011-06-21 Thread Henning Rohlfs
On Tue, 21 Jun 2011 11:18:30 -0400, Josef Bacik wrote: On 06/21/2011 05:26 AM, Henning Rohlfs wrote: On Tue, 21 Jun 2011 10:00:59 +0200, Sander wrote: Henning Rohlfs wrote (ao): - space_cache was enabled, but it seemed to make the problem worse. It's no longer in the mount options

Abysmal Performance

2011-06-20 Thread Henning Rohlfs
Hello, I've migrated my system to btrfs (raid1) a few months ago. Since then the performance has been pretty bad, but recently it's gotten unbearable: a simple sync called while the system is idle can take 20 up to 60 seconds. Creating or deleting files often has several seconds latency,

raid1 write performanc

2011-01-24 Thread Henning Rohlfs
Hello, I recently migrated my system to btrfs on two drives (spinning) configured as raid1. When writing to this filesystem, the system shows some weird behaviour: it starts off with writing to both drives simultaneously for a few seconds, but after that it starts writing to the drives one