2014-05-08 (목), 12:43 -0700, Paul Ni: > On 6 May 2014 17:04, Jaegeuk Kim <jaegeuk....@samsung.com> wrote: > > > > Hi, > > > > 2014-05-04 (일), 23:59 +0000, Paul Ni: > > > Is it possible to set an arbitrary segment size? I'm trying to set it > > > to 1.5MiB to make it align with erase blocks on flash chips in my EVO > > > 840 SSD. > > > > Impossible. The hard-coded segment size is fixed to manange the whole FS > > metadata. > > If you want to adjust the underlying FTL layout, you can change the > > section and zone sizes. > > Thanks, > > [...]
> Is there any other way to avoid unaligned writes to erase blocks on > TLC flash based SSDs? As far as I know, all TLC flash memory has erase > blocks sizes in multiples of 3. If you want to align more precisely to the storage, you can configure the section size in multiples of 3. For example, mkfs.f2fs -s 3 $DEV -> this configures the sections consisting of 3 segments, 6MB. Thanks, -- Jaegeuk Kim Samsung ------------------------------------------------------------------------------ Is your legacy SCM system holding you back? Join Perforce May 7 to find out: • 3 signs your SCM is hindering your productivity • Requirements for releasing software faster • Expert tips and advice for migrating your SCM now http://p.sf.net/sfu/perforce _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
