Yes. On Thu, Apr 23, 2015 at 11:35 AM, Deneau, Tom <tom.deneau@xxxxxxx> wrote: >> -----Original Message----- >> From: Gregory Farnum [mailto:greg@xxxxxxxxxxx] >> Sent: Thursday, April 23, 2015 12:37 PM >> To: Deneau, Tom >> Cc: ceph-devel >> Subject: Re: ceph tell osd bench >> >> On Thu, Apr 23, 2015 at 6:58 AM, Deneau, Tom <tom.deneau@xxxxxxx> wrote: >> > While running ceph tell osd bench and playing around with the total_bytes >> and block_size parameters, >> > I have noticed that if the total_bytes written is less than about 0.5G, the >> bytes/sec is much higher. >> > Why is that? >> >> It's probably only writing the data into the journal at that size. I'm >> a bit surprised because I thought the osd bench took care to only >> provide stable numbers, but maybe it's just using well-chosen defaults >> and at half a gig you're running well below them. >> -Greg > > so is an osd write (as used by tell osd bench) considered complete when > it is written to the journal? > > -- Tom > -- 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
