Well done Michael! As I indicated earlier in my post, many issues with slow application performance these days are due to waiting for either unanswered queries or getting wrong answers. The quick check of raw throughput (your 10MB transfer in a *blip* proved that) can help you concentrate on the real problem. If you were using a wireshark to look at you application flow you would have seen the IPv6 query going out (but not getting an answer) and then a followup with a working IPv4 query and then a quick response.
Regards, Martin martinvisse...@gmail.com On Sat, Feb 21, 2009 at 4:41 PM, Kyle <k...@attitia.com> wrote: > ........... O....K!!! > > That is indeed what it does Michael, when it doesn't timeout. I had > previously read up on F'Fox and turned on the various turbocharging options, > but hadn't thought of ipv6. > > So I changed "network.dns.disableIPv6" to true on the hosts behind the > switch and Wow! That's a bit more like what I might expect. > > ipv6 has always been a bit of a black box I've tried to avoid as long as > possible. Guess I need to start reading up on it. Or disabling it! > > Allow me here to thank each and every one of you that have put up with my > ignorance to assist in debugging this issue. > > I'm not convinced that's all there is to it just yet. For instance, the > Linux box is still an order of magnitude faster to load a page, > network.dns.disableIPv6 is true by default in T'Bird on the hosts which > still timeout on initial connection and all hosts are only using the linux > box itself as name server. > > But where we are now will go a long way to dispersing aggravation in the > local browsing community. > > Thanks again. > > ipv6 ..... mumble, groan, must read ..... pain in th..... mumble, groan, > ipv6 > > ------------------------------------------------------------------------ > Kind Regards > > Kyle > > > > Michael Chesterton wrote: > >> >> >> Does it sit there for 11 seconds, then load all of a sudden, or does it >> start loading right from >> the start? >> >> I'm wondering if firefox is doing IPv6 lookups and failing. If you want to >> test, disable IPv6 in firefox (about:config) or use the same nameservers as >> the linux router >> >> -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html > -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
