Re: [Ocfs2-users] A Billion Files on OCFS2 -- Best Practices?

2012-02-02 Thread Mark Hampton
It does seem to be a little bit faster (maybe 10%) with usrquota, grpquota and metaecc disabled. The good news is that performance stayed pretty steady right through to the end of the test. Performance dropped considerably from ~2500 to ~1500 files per second over the first 500,000 inodes, but

Re: [Ocfs2-users] A Billion Files on OCFS2 -- Best Practices?

2012-02-01 Thread Mark
One more thing. When I straced one of the application processes (these are the processes that create the files) I saw this: % time seconds usecs/callcalls errors syscall --- -- -- -- --- 68.94 3.002017 11127154open 18.93

Re: [Ocfs2-users] A Billion Files on OCFS2 -- Best Practices?

2012-02-01 Thread Sunil Mushran
On 02/01/2012 07:02 AM, Mark wrote: One more thing. When I straced one of the application processes (these are the processes that create the files) I saw this: % time seconds usecs/callcalls errors syscall --- -- -- -- --- 68.94 3.002017

Re: [Ocfs2-users] A Billion Files on OCFS2 -- Best Practices?

2012-02-01 Thread Sunil Mushran
debugfs.ocfs2 -R stats /dev/mapper/... I want to see the features enabled. The main issue with large metdata is the fsck timing. The recently tagged 1.8 release of the tools has much better fsck performance. On 02/01/2012 05:25 AM, Mark Hampton wrote: We have an application that has many

Re: [Ocfs2-users] A Billion Files on OCFS2 -- Best Practices?

2012-02-01 Thread Mark Hampton
Here's what I got from debugfs.ocfs2 -R stats. I have to type it out manually, so I'm only including the features lines: Feature Compat: 3 backup-super strict-journal-super Feature Incompat: 16208 sparse extended-slotmap inline-data metaecc xattr indexed-dirs refcount discontig-bg Feature RO

Re: [Ocfs2-users] A Billion Files on OCFS2 -- Best Practices?

2012-02-01 Thread Sunil Mushran
On 02/01/2012 10:24 AM, Mark Hampton wrote: Here's what I got from debugfs.ocfs2 -R stats. I have to type it out manually, so I'm only including the features lines: Feature Compat: 3 backup-super strict-journal-super Feature Incompat: 16208 sparse extended-slotmap inline-data metaecc

Re: [Ocfs2-users] A Billion Files on OCFS2 -- Best Practices?

2012-02-01 Thread Mark Hampton
On Wed, Feb 1, 2012 at 1:27 PM, Sunil Mushran sunil.mush...@oracle.comwrote: On 02/01/2012 10:24 AM, Mark Hampton wrote: Here's what I got from debugfs.ocfs2 -R stats. I have to type it out manually, so I'm only including the features lines: Feature Compat: 3 backup-super