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Subject [Bug 63004] New: Java vs. HTTPclient4 very big response time difference, HTTPclient4 adding 30s to response time
Date Tue, 11 Dec 2018 19:32:34 GMT

            Bug ID: 63004
           Summary: Java vs. HTTPclient4 very big response time
                    difference, HTTPclient4 adding 30s to response time
           Product: JMeter
           Version: 5.0
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: HTTP
  Target Milestone: JMETER_5.1

im using Jmeter for 12 years now, but there are everything new strange bugs.

 I met strange problem with new HTTP application, which im testing, in browser
are response times from 2-20s for whole pages for all requests, this 1
problematic is 0-8s, in Jmeter for 1 request was response time almost always
30s+, in very few occasional iterations im getting fast response time 1-8s, but
when i get slow its always over (like some wait is added or something like
that) 30s, 30-38s. I run zillion of iterations, but i never got response
between 8s and 29s!, always 30+, or <8s.

  I kept, investigating and when i used Java client+RedirectAutomatically
option instead of HTTPclient4 is fine,i getting reasonable response times 0-8s.
Any other any other combinations, failing, i tried httpclient4 with
redirectAutomatically too, its the same, its still slow, +30s.. in 95% of
cases. Its not some application hicup or something its reproducable, whole day
long problem.

 I tried Jmeter 4/3.3 even Jmeter 3 with HTTP client3 and its accross multiple
of version, there is some bug.

  Its simple scripts, no timers, no cycles etc.. just requests, transaction
controller and lots of regular expression extractors and few results tree. Load
is 1 to 5 users. Java 1.8 64 bit 1.8 191.

 Im using OpenVPN for scripting, antivir is turn down, but condion for all
testing are the same.

  Application+data are not public, but i know that im doing, same scenario in
SilkPerformer is fast too.

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