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Posted to user@jmeter.apache.org by Sumit Verma <su...@gmail.com> on 2017/09/26 06:34:33 UTC
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
RE: Max times values are very High
Posted by Bob Small <bo...@blackboard.com>.
As well as traceroute (tracert) command line and see if the hops report errors to the end point.
Bob Small<ma...@blackboard.com>
QA Automation
Development
Blackboard Transact
T: 602.752.6301
blackboard.com/transact<https://blackboard.com/transact>
[BbTS-logo-email]<https://blackboard.com/transact>
From: Bo Bodnar [mailto:bbodnar@us.ibm.com]
Sent: Tuesday, September 26, 2017 12:02 PM
To: JMeter Users List <us...@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
________________________________
E-mail: bbodnar@us.ibm.com<ma...@us.ibm.com>
222 South Riverside Plaza
Chicago, IL 60606
United States
[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 <su...@gmail.com>>
To: JMeter Users List <us...@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 <bo...@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<ma...@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
> This email and any attachments may contain confidential and proprietary
> information of Blackboard that is for the sole use of the intended
> recipient. If you are not the intended recipient, disclosure, copying,
> re-distribution or other use of any of this information is strictly
> prohibited. Please immediately notify the sender and delete this
> transmission if you received this email in error.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org<ma...@jmeter.apache.org>
> For additional commands, e-mail: user-help@jmeter.apache.org<ma...@jmeter.apache.org>
>
This email and any attachments may contain confidential and proprietary information of Blackboard that is for the sole use of the intended recipient. If you are not the intended recipient, disclosure, copying, re-distribution or other use of any of this information is strictly prohibited. Please immediately notify the sender and delete this transmission if you received this email in error.
Re: Max times values are very High
Posted by Bo Bodnar <bb...@us.ibm.com>.
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
E-mail: bbodnar@us.ibm.com 222 South Riverside Plaza
Chicago, IL 60606
United States
From: Sumit Verma <su...@gmail.com>
To: JMeter Users List <us...@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 <bo...@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
> 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
> This email and any attachments may contain confidential and proprietary
> information of Blackboard that is for the sole use of the intended
> recipient. If you are not the intended recipient, disclosure, copying,
> re-distribution or other use of any of this information is strictly
> prohibited. Please immediately notify the sender and delete this
> transmission if you received this email in error.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
> For additional commands, e-mail: user-help@jmeter.apache.org
>
Re: Max times values are very High
Posted by Sumit Verma <su...@gmail.com>.
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 <bo...@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
> 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
> This email and any attachments may contain confidential and proprietary
> information of Blackboard that is for the sole use of the intended
> recipient. If you are not the intended recipient, disclosure, copying,
> re-distribution or other use of any of this information is strictly
> prohibited. Please immediately notify the sender and delete this
> transmission if you received this email in error.
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@jmeter.apache.org
> For additional commands, e-mail: user-help@jmeter.apache.org
>
RE: Max times values are very High
Posted by Bob Small <bo...@blackboard.com>.
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
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
This email and any attachments may contain confidential and proprietary information of Blackboard that is for the sole use of the intended recipient. If you are not the intended recipient, disclosure, copying, re-distribution or other use of any of this information is strictly prohibited. Please immediately notify the sender and delete this transmission if you received this email in error.
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