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Re: Sometimes bottle takes a lot of time

References (1 earlier) <mailman.11.1440229764.17298.python-list@python.org> <87a8tjo8oz.fsf@Equus.decebal.nl> <mailman.14.1440257612.17298.python-list@python.org> <87pp2fmc9z.fsf@Equus.decebal.nl> <87lhd3m3t0.fsf@Equus.decebal.nl>
Date 2015-08-23 09:13 +1000
Subject Re: Sometimes bottle takes a lot of time
From Chris Angelico <rosuav@gmail.com>
Newsgroups comp.lang.python
Message-ID <mailman.18.1440285202.17298.python-list@python.org> (permalink)

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On Sun, Aug 23, 2015 at 7:06 AM, Cecil Westerhof <Cecil@decebal.nl> wrote:
> I have included the output as attachment. It is clear that bottle is
> not the problem: fetching all the data takes at most 0.017 seconds.
>

Something to consider: You could be running into some weird
interaction of caches. Try blowing your OS and browser caches, and see
what the timings are like then. Also, if you can recreate the
six-second delay, I'd want to know what's happening during that time -
is there an open socket between the browser and the server? Is
anything pegging the CPU? Is the disk heavily active? Finding any sort
of saturation would help to pin down the cause of the delay. Do you
have any network mounts in your file system, and could they be
delaying some stat() call somewhere? Six seconds is a lot, but I do
recall running into problems occasionally when I had a NETBIOS/NETBEUI
mount on one of my boxes (Linux couldn't safely cache stuff, and the
remote system was misconfigured as regards caching, I think - the
upshot was terrible performance in certain situations, all of it spent
waiting on the network).

ChrisA

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Thread

Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-21 23:22 +0200
  Sometimes bottle takes a lot of time gst <g.starck@gmail.com> - 2015-08-21 14:55 -0700
    Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-22 13:34 +0200
  Re: Sometimes bottle takes a lot of time Peter Otten <__peter__@web.de> - 2015-08-22 09:49 +0200
    Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-22 13:37 +0200
      Re: Sometimes bottle takes a lot of time Michael Torrie <torriem@gmail.com> - 2015-08-22 09:33 -0600
        Re: Sometimes bottle takes a lot of time Rustom Mody <rustompmody@gmail.com> - 2015-08-22 09:13 -0700
        Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-22 20:03 +0200
          Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-22 23:06 +0200
            Re: Sometimes bottle takes a lot of time Chris Angelico <rosuav@gmail.com> - 2015-08-23 09:13 +1000
              Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-23 02:51 +0200
                Re: Sometimes bottle takes a lot of time Chris Angelico <rosuav@gmail.com> - 2015-08-23 11:05 +1000
                Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-23 14:45 +0200
  Re: Sometimes bottle takes a lot of time Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-22 11:41 +0200
    Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-22 13:28 +0200
      Re: Sometimes bottle takes a lot of time Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-22 14:09 +0200
        Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-22 15:09 +0200
          Re: Sometimes bottle takes a lot of time Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-22 15:51 +0200
            Re: Sometimes bottle takes a lot of time Christian Gollwitzer <auriocus@gmx.de> - 2015-08-22 16:15 +0200
              Re: Sometimes bottle takes a lot of time Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-23 16:05 +0200
                Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-23 17:20 +0200
                Re: Sometimes bottle takes a lot of time MRAB <python@mrabarnett.plus.com> - 2015-08-23 16:44 +0100
                Re: Sometimes bottle takes a lot of time Cecil Westerhof <Cecil@decebal.nl> - 2015-08-23 18:15 +0200
                Re: Sometimes bottle takes a lot of time Michael Torrie <torriem@gmail.com> - 2015-08-23 10:47 -0600
                Re: Sometimes bottle takes a lot of time Johannes Bauer <dfnsonfsduifb@gmx.de> - 2015-08-23 22:55 +0200
                Re: Sometimes bottle takes a lot of time Ben Finney <ben+python@benfinney.id.au> - 2015-08-24 10:01 +1000

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