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Posted to user@jmeter.apache.org by "Ramesh J.C" <rk...@cmcltd.com> on 2003/05/28 06:29:19 UTC
Response time for increasing load is fluctuating
Hai
Iam new user to jmeter. I used jmeter to load test the display of simple login page .There is no further processing involved .I gradually increased the number of threads in the thread group keeping the ramp up period 0 and loop count 1.I used 'aggregate report' as the listener.I stopped increasing the load when the report showed some error % .Now I plotted a line-graph with Number of threads on X-axis and the min ,max,and Avg on Y-axis.
The three curves in the line -graph are fluctuating ,its going up and falling down,there are lots of peaks in the graph .There are no additonal applications running on the server nor on client where jmeter is running and both server and client are on the same LAN.
Now why do the response time is fluctuating as the load is increasing?Is jmeter a good tool for load testing.Please clarify .
Rgds
Ramesh
Re: Response time for increasing load is fluctuating
Posted by "Ramesh J.C" <rk...@cmcltd.com>.
Thanks for the reply.If I give a loop count of 10 with the thread group 10
,then what will be the actual load on the system ,how should I plot the
graph ?should I give the number of users as 100(10*10) or just 10 with the
corresponding average response time.
----- Original Message -----
From: <ms...@apache.org>
To: <jm...@jakarta.apache.org>
Sent: Wednesday, May 28, 2003 5:56 PM
Subject: Re: Response time for increasing load is fluctuating
> A single loop through the test isn't going to give you steady, predictable
> results. Too many things can affect it - garbage collection in jmeter,
thread
> synchronization hicchups, daemon processes on your server, etc. And the
> min and max are going to be fairly random anyway. Try several more loops
to
> let the average settle down before repeating this experiment.
>
> -Mike
>
> On 28 May 2003 at 9:59, Ramesh J.C wrote:
>
> > Hai
> > Iam new user to jmeter. I used jmeter to load test the display of
simple
> login page .There is no further processing involved .I gradually
increased the
> number of threads in the thread group keeping the ramp up period 0 and
loop
> count 1.I used 'aggregate report' as the listener.I stopped increasing the
load
> when the report showed some error % .Now I plotted a line-graph with
Number
> of threads on X-axis and the min ,max,and Avg on Y-axis.
> > The three curves in the line -graph are fluctuating ,its going up and
falling
> down,there are lots of peaks in the graph .There are no additonal
applications
> running on the server nor on client where jmeter is running and both
server and
> client are on the same LAN.
> > Now why do the response time is fluctuating as the load is
increasing?Is
> jmeter a good tool for load testing.Please clarify .
> >
> > Rgds
> > Ramesh
> >
> >
>
>
>
> --
> Michael Stover
> mstover1@apache.org
> Yahoo IM: mstover_ya
> ICQ: 152975688
> AIM: mstover777
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>
>
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Re: Response time for increasing load is fluctuating
Posted by ms...@apache.org.
A single loop through the test isn't going to give you steady, predictable
results. Too many things can affect it - garbage collection in jmeter, thread
synchronization hicchups, daemon processes on your server, etc. And the
min and max are going to be fairly random anyway. Try several more loops to
let the average settle down before repeating this experiment.
-Mike
On 28 May 2003 at 9:59, Ramesh J.C wrote:
> Hai
> Iam new user to jmeter. I used jmeter to load test the display of simple
login page .There is no further processing involved .I gradually increased the
number of threads in the thread group keeping the ramp up period 0 and loop
count 1.I used 'aggregate report' as the listener.I stopped increasing the load
when the report showed some error % .Now I plotted a line-graph with Number
of threads on X-axis and the min ,max,and Avg on Y-axis.
> The three curves in the line -graph are fluctuating ,its going up and falling
down,there are lots of peaks in the graph .There are no additonal applications
running on the server nor on client where jmeter is running and both server and
client are on the same LAN.
> Now why do the response time is fluctuating as the load is increasing?Is
jmeter a good tool for load testing.Please clarify .
>
> Rgds
> Ramesh
>
>
--
Michael Stover
mstover1@apache.org
Yahoo IM: mstover_ya
ICQ: 152975688
AIM: mstover777
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