Messages in this thread | | | Date | Sun, 21 Oct 2012 12:26:38 +0200 | From | Pavel Machek <> | Subject | Re: Initial report on F2FS filesystem performance |
| |
Hi!
> >> This is a brief summary of our initial filesystem performance study of f2fs against existing two filesystems in linux: EXT4, NILFS2, and f2fs. > >> > > > > Hmm, flashes are actually optimized for VFAT, right? Can you compare > > against that? > > > > Do you mean SD-cards? Because, as I can understand, "raw" flash (I mean NAND chip) hasn't any special filesystem-related optimization. Moreover, as I know, this optimization takes place in the begin of device (because FAT metadata is placed in the volume's begin). But if you have several partition on a device then you haven't any optimizations for second and next FAT partitions. So, in-place modified metadata of f2fs is placed in the begin of the volume also. > > Or, maybe, do you mean some another special optimization for VFAT? >
I meant SD-card, sorry. Compare factory-formatted VFAT on SD card with f2fs running on the same partition.
Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
| |