May be something like http://github.com/facebook/flashcache/blob/master/doc/flashcache-doc.txt will be interesting for you. On Tue, Jun 8, 2010 at 11:31 AM, Mario <mgiammarco@xxxxxxxxx> wrote: > Bill Davidsen <davidsen <at> tmr.com> writes: > > >> Actually playing with that now. I got an Intel SATA 40GB SSD, and I am >> trying various combinations of things to put on it. One thing which I >> hoped would benefit was to put a f/s journal on SSD and then use the >> option to push all through the journal (data=journal) in hopes that it >> would then free the RAM needed for cache and thus speed operation. >> >> > > Probably it is due to two things: > > 1) to see advantages you have to test in a server situation where a > lot of thread are writing AND others are reading. So in this case > writes to hard disk can be delayed a lot to give less latency to reads. > 2) A lot of tuning is due to force linux to keep data on journal > as long as it can. > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- Best regards, [COOLCOLD-RIPN] -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
