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Re: Sometimes bottle takes a lot of time

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On Sunday 23 Aug 2015 01:13 CEST, Chris Angelico wrote:

> 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).

How do I see if there is an open socket?

But in principal I have found the problem. (Not the reason.) The
problem is Firefox. (So it is not bottle and also not AngularJS.) When
using Chrome there is no problem. Not even when I do 15 times a
refresh. With Firefox there is this problem. Even when I restart it.

So I have found the problem and it is certainly not a Python problem.
I should post it on the Firefox, but if there will be an use-full
reply … I have been reading it for a long time. And when someone
mentioned that Firefox used to much CPU or memory the replies where in
my opinion not very helpful.

It even happens with Firefox in safe-mode. Less often and not two
times, but max one time.

Well, first some sleep and then trying to get something useful from
the Firefox mailing-list. ;-)

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

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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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