Am 25.04.2017 um 23:29 schrieb Jim Weill: > I have been experiencing a problem with web pages refusing to load for > more than 60 seconds in some cases since updating to the newest version > of the 52.x track. My office internet is a 1Gbps incoming line, of > which I usually get no less than 10Mbps when there is high traffic on > the line. > > I am finding that such disparate sites as google, facebook, and other > high-reliability sites sit and spin at random times throughout the day. > If I open a command line and ping that site, I get a ping time of 3-10ms > and very little deviation from the time on a continuous ping (i.e. no > single ping taking more than the time specified, or nslookup errors, > etc). Yet the site sits and spins for far too long before eventually > loading correctly. Is there a preference I have set wrong that's causing > this, or is this behavior also being noticed by anyone else on this > release track?
We had very slow page loads over https with some uplink proxies behind our Squid proxy, specially when those uplink proxies broke up https. This happened with both FF ESR versions, 45 and 52. Speed improved significantly after we disabled pipelining for these cases, setting network.http.pipelining to false. Seems that some commercial firewalls use proxy software that has issues with pipelining. Maybe FF or Squid do something unusual in these cases, although our Squid only forwards the https connection with CONNECT to the uplink proxy. As our clusters store home dirs on CephFS, we also had problems with the excessive use of fsync() calls in the Firefox configuration interface. fsync() is slow on network mounts. With a simple preloaded wrapper lib we enforced the use of fdatasync() instead of fsync(), this improved reaction time from several seconds (!) per key pressed to a fraction of a second. Interestingly, this also seems to improve page loading time, probably related to history storage in sqlite databases, which also use fsync(). Finally, some customer DNS forwarders do not support EDNS, switching EDNS off in our internal DNS forwarder also improved loading complex pages with their many DNS lookups. Hope this helps... Amon Ott -- Dr. Amon Ott m-privacy GmbH Tel: +49 30 24342334 Werner-Voß-Damm 62 Fax: +49 30 99296856 12101 Berlin http://www.m-privacy.de Amtsgericht Charlottenburg, HRB 84946 Geschäftsführer: Dipl.-Kfm. Holger Maczkowsky, Roman Maczkowsky GnuPG-Key-ID: 0x2DD3A649 _______________________________________________ Enterprise mailing list Enterprise@mozilla.org https://mail.mozilla.org/listinfo/enterprise To unsubscribe from this list, please visit https://mail.mozilla.org/listinfo/enterprise or send an email to enterprise-requ...@mozilla.org with a subject of "unsubscribe"
