Re: Testing ext4 persistent preallocation patches for 64 bit features

2007-02-07 Thread Mingming Cao
On Wed, 2007-02-07 at 13:18 +0530, Amit K. Arora wrote: I plan to test the persistent preallocation patches on a huge sparse device, to know if 32 bit physical block numbers (upto 48bit) behave as expected. Thanks! I have following questions for this and will appreciate suggestions here:

Re: Testing ext4 persistent preallocation patches for 64 bit features

2007-02-07 Thread Suparna Bhattacharya
On Wed, Feb 07, 2007 at 12:25:50AM -0800, Mingming Cao wrote: On Wed, 2007-02-07 at 13:18 +0530, Amit K. Arora wrote: I plan to test the persistent preallocation patches on a huge sparse device, to know if 32 bit physical block numbers (upto 48bit) behave as expected. Thanks! I have

Re: Testing ext4 persistent preallocation patches for 64 bit features

2007-02-07 Thread Andreas Dilger
On Feb 07, 2007 16:06 +0530, Suparna Bhattacharya wrote: On Wed, Feb 07, 2007 at 12:25:50AM -0800, Mingming Cao wrote: - disable preallocation if the filesystem free blocks is under some low watermarks, to save space for near future real block allocation? A policy decision like this is

Testing ext4 persistent preallocation patches for 64 bit features

2007-02-06 Thread Amit K. Arora
I plan to test the persistent preallocation patches on a huge sparse device, to know if 32 bit physical block numbers (upto 48bit) behave as expected. I have following questions for this and will appreciate suggestions here: a) What should be the sparse device size which I should use for testing?