On Thu, Nov 5, 2015 at 1:19 AM, Piotr.Dalek@xxxxxxxxxxxxxx <Piotr.Dalek@xxxxxxxxxxxxxx> wrote: >> -----Original Message----- >> From: ceph-devel-owner@xxxxxxxxxxxxxxx [mailto:ceph-devel- >> owner@xxxxxxxxxxxxxxx] On Behalf Of ??? >> Sent: Wednesday, November 04, 2015 4:34 PM >> To: Gregory Farnum >> Cc: ceph-devel@xxxxxxxxxxxxxxx >> Subject: Re: ceph encoding optimization >> >> I agree with pg_stat_t (and friends) is a good first start. >> The eversion_t and utime_t are also good choice to start because they are >> used at many places. > > On Ceph Hackathon, Josh Durgin made initial steps in right direction in terms of pg_stat_t encoding and decoding optimization, with the endianness-awareness thing left out. Even in that state, performance improvements offered by this change were huge enough to make it worthwhile. I'm attaching the patch, but please note that this is prototype and based on mid-August state of code, so you might need to take that into account when applying the patch. Cool, it's exactly we want to see. > > > With best regards / Pozdrawiam > Piotr Dałek > -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
