-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 04/19/2011 06:01 AM, Robert Collins wrote: > Some -very- good news. > > With the combination of performance work and the reconfigured > appservers we've now reduced our 99th percentile to 1.59 seconds > (measured on sunday). When I started as TA 10 months back our 99th > percentile was 2.24 seconds. This is slow and tedious work, but > immensely valuable to our users. I'm really happy with the progress > we've made - we're 50% of the way to having a 1 second 99th > percentile.
This is really great news. I'm curious how this works with your in-DC queuing? At least, from what I remember in the past, your stats did not take that into account. It is really nice to see that both the high-end (timeout reduced to 10s) and the low end (99th percentile at 1.59s) is getting better. It will certainly be interesting to see if/when you switch from "how can we make this terrible query less than 10s" to "how can we make these fast 2s queries faster (<1s)". ... > > We're down to 316 timeouts - 0.004% of requests, so, with an exception > for Question:+index (which could spike by 200 timeouts a day) the hard > timeout has been dropped to 10 seconds. > > If it looks good - and it may - we'll drop to 9 seconds later this > week; meeting Francis challenge for the Epic and leaving only 4 > seconds to go to reach my long term timeout of 5 seconds. > > Of course, we're going to need better and better code and schemas to > continue improving things, but we're in pretty good shape! > > -Rob Do we know how many exceptions we have at 10s, and how many exceptions we would need at 5s? John =:-> -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk2tWVYACgkQJdeBCYSNAAMnEwCfaOgAYQT3WvSSjieP77t3Q2YC lOsAoK/EXB17+z6ihJ8DTdGfJ0fAw7Y6 =hbHt -----END PGP SIGNATURE----- _______________________________________________ Mailing list: https://launchpad.net/~launchpad-dev Post to : [email protected] Unsubscribe : https://launchpad.net/~launchpad-dev More help : https://help.launchpad.net/ListHelp
