On Tue, May 12, 2009 at 03:49:30PM +0300, Alexander Shishkin wrote: > > So, what Andreas explained yesterday also applies to the internal log > case. I see. Would you say it's possible to prevent this, for instance > somehow say, by means checksums as Andreas suggested? > It's *possible*, but it's not a trivial amount of work; it requires both kernel and userspace changes, though. > It's an mmc and it (mkfs) runs almost two times faster without zeroing > the journal. The only thing I'm worried about is the time that it > takes for mke2fs -j to complete. I've done some caching trickery to > unix_io.c which I'm going to post here separately, but most of the > time seems to be taken by the journal. But why do you care about the time it akes for mke2fs -j to complete? How much time is it taking? Normally mke2fs isn't one of those programs which gets run all the time.... - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html