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From Stuart Kenworthy <Stuart.Kenwor...@bjss.com>
Subject RE: Max times values are very High
Date Tue, 26 Sep 2017 21:44:35 GMT
You may also want to check if ipv6 dns queries are failing because the server or your proxy
does not allow them so some need to wait for the timeout before some transactions will continue?
You may need to permantly disable ipv6 to resolve the issue.

On 26 Sep 2017 21:30, Bob Small <bob.small@blackboard.com> wrote:

As well as traceroute (tracert) command line and see if the hops report errors to the end
point.



Bob Small<mailto:bob.small@blackboard.com>

QA Automation



Development

Blackboard Transact



T: 602.752.6301

blackboard.com/transact<https://blackboard.com/transact>



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From: Bo Bodnar [mailto:bbodnar@us.ibm.com]
Sent: Tuesday, September 26, 2017 12:02 PM
To: JMeter Users List <user@jmeter.apache.org>
Subject: Re: Max times values are very High



Now we've details as to the experiments. Perhaps, you're seeing network issues? I'd run something
like t-shark or wireshark on the computer running jmeter and see what it shows. Out network
guru has seen something like this happen very infrequently during controlled experiments.
The root cause was either a misconfigured switch or router in the core network. I've also
seen similar things with optic networks where the laser in the NIC begins to degrade; a symptom
is a burst of TCP timeouts.

BB

Bohdan L. Bodnar
Lead Performance Engineer
1-312-871-5163




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[Inactive hide details for Sumit Verma ---09/26/2017 01:48:24 PM---Hi Bob, Thanks for responding.]Sumit
Verma ---09/26/2017 01:48:24 PM---Hi Bob, Thanks for responding.

From: Sumit Verma <sumit.verma.328@gmail.com<mailto:sumit.verma.328@gmail.com>>
To: JMeter Users List <user@jmeter.apache.org<mailto:user@jmeter.apache.org>>
Date: 09/26/2017 01:48 PM
Subject: Re: Max times values are very High

________________________________



Hi Bob,

Thanks for responding.
We are using New Relic to monitor service timings. At service end, I could
not find any request with time > 800 ms. But at client(Jmeter) end, some
requests are surprisingly taking more than 10 seconds. Could it be
limitation of Jmeter?

Thanks,
Sumit

On Tue, Sep 26, 2017 at 9:45 PM, Bob Small <bob.small@blackboard.com<mailto:bob.small@blackboard.com>>
wrote:

> What is the socket timeout set for?  Is the service taking a very long
> time using queuing or a long time for data look up?  There could be many
> reasons for this, I would suggest working with development to track the
> long transaction time.  Also logs would help if you use spluk or kibana
> this may help diagnosis the issue.
>
> Bob Small
> QA Automation
>
> Development
> Blackboard Transact
>
> T: 602.752.6301
> blackboard.com/transact
>
>
>
> -----Original Message-----
> From: Sumit Verma [mailto:sumit.verma.328@gmail.com]
> Sent: Monday, September 25, 2017 11:35 PM
> To: user@jmeter.apache.org<mailto:user@jmeter.apache.org>
> Subject: Max times values are very High
>
> Hi,
>
> I have run a performance tests for my service. I can see response times at
> my service ends are well within 1 sec but in the Jmeter aggregate reports
> max time values are very high(more 60 secs).
>
> What could be the reasons for such high numbers?
>
> Thanks in Advance.
> Sumit Verma
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