Maybe it's a storage problem when paging space is allocated? Kurt Bremser AMOS Austria
Newton was wrong. There is no gravity. The Earth sucks. ________________________________ Von: Luc Andre [landre3...@gmail.com] Gesendet: Dienstag, 12. Mai 2015 12:28 An: users@httpd.apache.org Betreff: Re: [users@httpd] Random latency in reentrant calls (Bug 57916) [wd-vc] Yes, but I'm still very surprised that spinning a new process can take up to 2 seconds on a powerful server :-( On Tue, May 12, 2015 at 12:26 PM, Yann Ylavic <ylavic....@gmail.com<mailto:ylavic....@gmail.com>> wrote: So is it working as expected now? On Tue, May 12, 2015 at 12:07 PM, Luc Andre <landre3...@gmail.com<mailto:landre3...@gmail.com>> wrote: > My mistake, apache2.conf is overridden by /mods-enabled/mpm_prefork.conf > > sorry about that... > > > > > On Tue, May 12, 2015 at 12:03 PM, Luc Andre > <landre3...@gmail.com<mailto:landre3...@gmail.com>> wrote: >> >> php_sapi_name: apache2handler >> >> >> Server MPM: prefork >> >> I tried >> >> StartServers 20 >> MinSpareServers 20 >> MaxSpareServers 20 >> >> And after restarting apache still have the issue but only after waiting >> about a minute between 2 tries. >> >> Then I did a "ps -ef | grep apache" and I discovered that I have only 11 >> apache processes running ! >> >> So it seems that MinSpareServers and StartServers are ignored and the >> problem is really a child spin up issue. >> >> Regards, >> >> Luc >> >> >> >> >> >> >> On Tue, May 12, 2015 at 11:16 AM, Rainer Canavan >> <rainer.cana...@sevenval.com<mailto:rainer.cana...@sevenval.com>> wrote: >>> >>> >>> >>> 2015-05-12 10:03 GMT+02:00 Luc Andre >>> <landre3...@gmail.com<mailto:landre3...@gmail.com>>: >>>> >>>> Thanks for your reply. >>>> >>>> We did a test on a powerful server with >>>> >>>> StartServers 20 >>>> MinSpareServers 5 >>>> MaxSpareServers 20 >>>> >>>> And we still have the issue... >>> >>> >>> To ensure that you don't hit the child spin up issue, you'll have to set >>> MinSpareServers to a value equal to or greater than the number of processes >>> you need for your test, I'd recommend 20 in this case, just to be sure. Are >>> you sure that you're using the prefork mpm, and therefore those settings are >>> actually relevant? If you don't have a good reason to use prefork, you may >>> get better performance with worker or event (but be sure to tune the >>> associated settings, such as ThreadsPerChild appropriately) >>> >>> Additionally, you don't specify how your PHP is configured. If you're >>> using PHP-FPM, you need to ensure that pm.start_servers and >>> pm.min_spare_servers are large enough as well. >>> >>> rainer >> >> > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org<mailto:users-unsubscr...@httpd.apache.org> For additional commands, e-mail: users-h...@httpd.apache.org<mailto:users-h...@httpd.apache.org> AMOS Austria GmbH 1130 Wien, Hietzinger Kai 101-105 FN 365014k, Handelsgericht Wien UID: ATU 66614737 http://www.allianz.at ******************************************************** Dieses E-Mail und allfaellig daran angeschlossene Anhaenge enthalten Informationen, die vertraulich und ausschliesslich fuer den (die) bezeichneten Adressaten bestimmt sind. Wenn Sie nicht der genannte Adressat sind, darf dieses E-Mail samt allfaelliger Anhaenge von Ihnen weder anderen Personen zugaenglich gemacht noch in anderer Weise verwertet werden. Wenn Sie nicht der beabsichtigte Empfaenger sind, bitten wir Sie, dieses E-Mail und saemtliche angeschlossene Anhaenge zu loeschen. Please note: This email and any files transmitted with it is intended only for the named recipients and may contain confidential and/or privileged information. If you are not the intended recipient, please do not read, copy, use or disclose the contents of this communication to others and notify the sender immediately. Then please delete the email and any copies of it. Thank you. ********************************************************
