Re: i_version changes

[Jean noel Cordenner <jean-noel.cordenner@bull.net>]

Peter Staubach a écrit :

>> Few month ago, I ran a FFSB test on a 2.6.23 kernel enabling or not 
>> the i_version flag.
>> http://bullopensource.org/ext4/20071116/ffsb-write.html
> 
> This is good information.
> 
> A couple of questions -- what is the "-I 256" option used for the ext4
> mkfs?
> 

This option force the inode size to 256Bytes instead of 128. The 
requirement is to have a 64bits i_version counter, therefore the ext4 
inode as to be extended to 256Bytes.

> What was the variance between the results of the 5 runs?  Is 2%
> significant or not?
> 

I didn't keep the raw results, but they were all very close to the 
average (less than 1% of the average).

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