On Fri, 2009-05-29 at 18:09 +0300, Artem Bityutskiy wrote: > From: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx> > Subject: [PATCH 2/2] UBIFS: start using hrtimers > > UBIFS uses timers for write-buffer write-back. It is not > crucial for us to write-back exactly on time. We are fine > to write-back a little earlier or later. And this means > we may optimize UBIFS timer so that it could be groped > with a close timer event, so that the CPU would not be > waken up just to do the write back. This is optimization > to lessen power consumption, which is important in > embedded devices UBIFS is used for. > > hrtimers have a nice feature: they are effectively range > timers, and we may defind the soft and hard limits for > it. Standard timers do not have these feature. They may > only be made deferrable, but this means there is effectively > no hard limit. So, we will better use hrtimers. > > Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx> > --- Seems sane enough from a hrtimer POV, but isn't this already functionality that the VFS/pdflush provide? -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
