Heads up: e2fsprogs-1.42-WIP-0702 pushed to rawhide

Eric Sandeen sandeen at redhat.com
Wed Oct 5 15:42:37 UTC 2011

On 10/5/11 9:58 AM, Eric Sandeen wrote:
> On 10/4/11 6:53 PM, Ric Wheeler wrote:


>> Note that ext4 has a new feature that allows inodes to be initialized in the 
>> background, so you will see much quicker mkfs.ext4 times as well :)
> right; for large ext4 fs use (or testing), try 
> # mkfs.ext4 -E lazy_itable_init=1 /dev/blah
> this will cause it to skip inode table initialization, and speed up mkfs a LOT.
> It'll also keep sparse test images smaller.
> IMHO this should probably be made default above a certain size.
> The tradeoff is that inode table initialization happens in kernelspace, post-mount -
> with efforts made to do it in the background, and not impact other I/O too much.

Sorry, Lukas reminds me that this should already be the default mode, with a
new enough kernel and new enough e2fsprogs.  Rawhide should meet those criteria.


> -Eric
>> ric

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