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* enquiry about defrag
@ 2012-09-09  0:03 ching
  2012-09-09  0:30 ` Jan Steffens
  2012-09-11 11:12 ` ching
  0 siblings, 2 replies; 14+ messages in thread
From: ching @ 2012-09-09  0:03 UTC (permalink / raw)
  To: linux-btrfs

Hi all,

i am new on btrfs, i am testing KVM on btrfs (host: kernel x86-64 3.5.3), the performance is reasonable.

I have two question on defrag, can someone help me?

1. According to btrfs wiki, defragment a COW file will produce two unrelated files.

    Does it apply to the "autodefrag" mount option?

2. Is there any command for the fragmentation status of a file/dir ? e.g. fragment size, number of fragments.

^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2012-09-11 23:33 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-09-09  0:03 enquiry about defrag ching
2012-09-09  0:30 ` Jan Steffens
2012-09-09  7:49   ` ching
2012-09-09  9:11     ` Fajar A. Nugraha
2012-09-09 12:05       ` ching
2012-09-10 12:19         ` ching
2012-09-10 13:10           ` Liu Bo
2012-09-10 23:21             ` ching
2012-09-11  1:28               ` Li Zefan
2012-09-11 11:12                 ` ching
2012-09-10  9:23   ` Alex Lyakas
2012-09-11 11:12 ` ching
2012-09-11 11:45   ` David Sterba
2012-09-11 23:33     ` ching

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