Re: new benchmark btrfs 0.19 vs. ext4

On Tue, Jul 7, 2009 at 17:06, Morten P.D. Stevens wrote: > Hi Brian, > > thanks for the chart. > > Here are the results visually for all: > > http://www2.win-professional.com/images2/btrfs01.png > > http://www2.win-professional.com/images2/btrfs02.png What are the units? Are those measuring throu

RE: new benchmark btrfs 0.19 vs. ext4

Hi Brian, thanks for the chart. Here are the results visually for all: http://www2.win-professional.com/images2/btrfs01.png http://www2.win-professional.com/images2/btrfs02.png -Original Message- From: Brian Neu [mailto:proclivit...@yahoo.com] Sent: Tuesday, July 07, 2009 4:16 AM To

Ghost file.

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 I mentioned a ghost file. Here is the dump (less than 65M): http://dev.mccme.ru/~raskin/btrfs.dump ghost file is: 885dj1l4788pymp3bk2f3dz52ggcvw4v-empty/garbage-1/mwave.h.tmp-31838-1822528541 It has a name, but stat fails (so no inode, I guess). Also

[PATCH] btrfs: async block group caching v6

This patch moves the caching of the block group off to a kthread in order to allow people to allocate sooner. Instead of blocking up behind the caching mutex, we instead kick of the caching kthread, and then attempt to make an allocation. If we cannot, we wait on the block groups caching waitqueu

[PATCH] speed up snapshot dropping v2

This patch contains two changes to avoid unnecessary tree block reads during snapshot dropping. First, check tree block's reference count and flags before reading the tree block. if reference count > 1 and there is no need to update backrefs, we can avoid reading the tree block. Second, save when s

[PATCH] relocate file extents in in clusters

Relocate file extents in clusters instead of one by one, so we can make better use of readahead. Signed-off-by: Yan Zheng --- diff -urp 1/fs/btrfs/relocation.c 2/fs/btrfs/relocation.c --- 1/fs/btrfs/relocation.c 2009-07-03 08:08:34.160847023 +0800 +++ 2/fs/btrfs/relocation.c 2009-07-07 1

[PATCH] speed up snapshot dropping

This patch contains two changes to avoid unnecessary tree block reads during snapshot dropping. First, check tree block's reference count and flags before reading the tree block. if reference count > 1 and there is no need to update backrefs, we can avoid reading the tree block. Second, save when s