Re: Example of BTRFS uglyssima performance : Bitcoin

2012-12-04 Thread Sander
Swâmi Petaramesh wrote (ao): But I've been using pretty *anything over LUKS/LVM for years, and I've never notice it cause any (noticeable to the point of becoming annoying) system slowdown, whatever tasks I may have processed in such setups (including servers, big databases, compilations, NAS,

various problems converting to RAID1

2012-12-04 Thread Piotr Pawłow
Hello, On saturday I added another disk to my BTRFS filesystem. I started a rebalance to convert it from m:DUP/d:single to m:RAID1/d:RAID1. I quickly noticed it started filling my logs with: btrfs: block rsv returned -28, and slowpath warnings from use_block_rsv+0x198/0x1a0 [btrfs]

Re: basic questions regarding some btrfs features

2012-12-04 Thread Aastha Mehta
Thanks a lot for the explanation. Regards, Aastha. On 3 December 2012 13:02, Hugo Mills h...@carfax.org.uk wrote: On Mon, Dec 03, 2012 at 10:52:41AM +0100, Aastha Mehta wrote: On 2 December 2012 23:46, Hugo Mills h...@carfax.org.uk wrote: On Sun, Dec 02, 2012 at 11:17:26PM +0100, Aastha

Mounted compress-force=zlib, compresses when files copied in, but not when written directly by application

2012-12-04 Thread Thorn Roby
I am trying to use a btrfs filesystem (Oracle Linux 6.3 X86_64, UEK kernel) with data RAID0 and metadata RAID1, mounted as follows: /dev/sda3 on /data type btrfs (rw,noatime,compress-force=zlib,noacl) dmesg shows btrfs: force zlib compression btrfs: disk space caching is enabled My

Re: Mounted compress-force=zlib, compresses when files copied in, but not when written directly by application

2012-12-04 Thread Liu Bo
On Tue, Dec 04, 2012 at 07:44:16PM +, Thorn Roby wrote: I am trying to use a btrfs filesystem (Oracle Linux 6.3 X86_64, UEK kernel) with data RAID0 and metadata RAID1, mounted as follows: /dev/sda3 on /data type btrfs (rw,noatime,compress-force=zlib,noacl) dmesg shows btrfs: