Re: Testing with 4000 disks

[Jakob Oestergaard]

On Fri, Apr 04, 2003 at 01:55:05PM -0800, Badari Pulavarty wrote:
> Okay !! I just made all my filesystem except root ext2.
> (I couldn't boot when I configed out ext3 - mounting
> root failed).
> 
> Anyway, problem seem to have gone away..
> Machine is really slow while trying to do IO on
> all 4000 filesystems. It is slowly creating processes.
> System is 100% busy. (so far, it created 461 processes 
> out of 4000). But we are not running out of lowmem and 
> inode caches seems to be reasonable..
> 
> So, it must be some leak in ext3..
> 

Or bad things happening because you have hundreds of processes all
updating the same physical journal...

You mounted rw, and reading a file causes a write due to atime updates.

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