On 10.09.2013 16:13, Jim Jagielski wrote: > For completeness, a full, combined patch is: > > http://people.apache.org/~jim/patches/httpd-2.4-event-test.patch > > It requires a patch that knows about creating new files > when encountering /dev/null...
The code (plus r1410004) runs on eos (US incarnation of www.apache.org) since a few hours. It runs stably without noticable hickups. .4.7-dev-r1523261-skiplist: http://www.us.apache.org/server-status 2.4.6: http://www.eu.apache.org/server-status Currently usr cpu is 60% higher per request, sys cpu is 30% lower, total cpu is 27% higher. This might be due to differences in the request mix between the US and EU incarnation, hardware, config etc. are the same. I plan toswitch the versions between the two and do the comparison again. Note that I'm not talking about the CPU percentage value in server-status which is for the whole system. There the numbers differ a lot because eos also carries the wiki but that runs outside of the httpd processes. I'm only measuring the httpd process cpu time per request. Regards, Rainer > On Sep 10, 2013, at 9:52 AM, Jim Jagielski <j...@jagunet.com> wrote: > >> For the testing, we need: >> >> http://people.apache.org/~jim/patches/httpd-2.4-skiplist.patch >> http://people.apache.org/~jim/patches/httpd-2.4-podx.patch >> http://people.apache.org/~jim/patches/httpd-2.4-event.patch >> >> This includes all the performance/sync updates >> >> Can we get infra to test that out somewhere? >> >> On Sep 6, 2013, at 7:19 AM, Jim Jagielski <j...@jagunet.com> wrote: >> >>> >>> On Sep 5, 2013, at 5:46 PM, Rainer Jung <rainer.j...@kippdata.de> wrote: >>> >>>> On 05.09.2013 16:35, Jim Jagielski wrote: >>>>> BTW, the main diff between event in trunk and 2.4 is >>>>> the use of skiplist. My benchmarks show decreased latency >>>>> and a performance boost of ~5% (on avg). Can anyone confirm? >>>>> It would be nice to possibly get that in 2.4.7 as well. >>>> >>>> I can offer to negotiate with infra to run 2.4 head plus event patches >>>> for skiplist use on www.a.o EU if that helps collecting votes. >>>> >>>> I did the httpd updates on www.a.o during the last months and in >>>> previous years running non-released stuff there was a common practice, >>>> so I hope infra will trust our opinion on whether the code should be >>>> ready for prime time or not. >>>> >>>> If we want to see the code running there, I would appreciate a patch >>>> ready to apply to 2.4 event.c. I currently feel not in the position to >>>> judge, whether running that code on www.a.o actually is a good idea or >>>> not. Opinions? >>> >>> >>> Great idea. I can create the 2.4 patch. (and add it to STATUS) ;) >>> >> > -- kippdata informationstechnologie GmbH Tel: 0228 98549 -0 Bornheimer Str. 33a Fax: 0228 98549 -50 53111 Bonn www.kippdata.de HRB 8018 Amtsgericht Bonn / USt.-IdNr. DE 196 457 417 Geschäftsführer: Dr. Thomas Höfer, Rainer Jung, Sven Maurmann
