On Thu, Aug 27, 2009 at 10:19 PM, Alan Burlison<[email protected]> wrote: > Peter Tribble wrote: > >> What I'm seeing is a lag in accessing a page. Basically, for every page >> I view there's a brief pause (maybe 1 or 2s, enough to be noticeable) >> before the page starts to load. > > One of the things we know about is that the download of the various > javascript files is serialised by Firefox, and because there are quite a lot > of them (11 on the page you mention), it slows the overall load. There's a > workaround for this but it hasn't yet been deployed on hub. That should help > some.
That's fine, but I see the delay in wget just getting the one file as well. And that sort of serialised download would slow page display - it ought to start downloading something and even display the page title pretty quickly, and I'm not even seeing that. Quick snoop: 1 0.00000 voyager -> hub.opensolaris.org HTTP GET /bin/view/Main/getting_started_developers HTTP/1.1 2 0.16974 hub.opensolaris.org -> voyager HTTP R port=33179 3 3.94342 hub.opensolaris.org -> voyager HTTP HTTP/1.1 200 OK 4 0.00078 hub.opensolaris.org -> voyager HTTP (body) 5 0.00047 hub.opensolaris.org -> voyager HTTP (body) 6 0.00001 voyager -> hub.opensolaris.org HTTP C port=33179 7 0.00241 hub.opensolaris.org -> voyager HTTP (body) 8 0.00017 hub.opensolaris.org -> voyager HTTP (body) 9 0.05614 voyager -> hub.opensolaris.org HTTP C port=33179 10 0.11759 hub.opensolaris.org -> voyager HTTP (body) 11 0.00034 hub.opensolaris.org -> voyager HTTP (body) 12 0.00001 voyager -> hub.opensolaris.org HTTP C port=33179 13 0.00001 hub.opensolaris.org -> voyager HTTP (body) 14 0.05180 hub.opensolaris.org -> voyager HTTP (body) 15 0.00002 voyager -> hub.opensolaris.org HTTP C port=33179 16 0.00015 hub.opensolaris.org -> voyager HTTP (body) 17 0.05007 voyager -> hub.opensolaris.org HTTP C port=33179 18 0.08535 hub.opensolaris.org -> voyager HTTP (body) 19 0.00033 hub.opensolaris.org -> voyager HTTP (body) 20 0.00001 voyager -> hub.opensolaris.org HTTP C port=33179 21 0.00000 hub.opensolaris.org -> voyager HTTP (body) 22 0.05449 voyager -> hub.opensolaris.org HTTP C port=33179 Ouch. 4s between packets 2 and 3. It's not the overall time, it's that initial pause. -- -Peter Tribble http://www.petertribble.co.uk/ - http://ptribble.blogspot.com/
hub.snoop
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