You are correct deepak , I had redirects in the first sampler. Observerd
the HTTP redirection status code in the view results listener. After
removing that sampler i had latency being shown correctly.
Again , why is the latency shown 0 for redirects as even the redirects
traverse across the internet and it takes time for Jmeter to get them
process them.
Thanks
Jatin
Deepak Shetty wrote:
Hi
I tested against www.google.com and I dont see a zero latency. did you
verify with View Results Tree that you are indeed getting Google's home page
(no redirects/errors or anything)? are you seeing this behavior for all
external sites?
The elapsed time = latency +( time from 1st byte to last byte received).
Any combination of value is possible , with elapsed time always greater than
latency.
regards
deepak
On Sat, Jan 9, 2010 at 10:11 PM, Jatin <[email protected]> wrote:
I was testing from my home laptop. My internet speed is 256 kbps. I
recorded the home page of google.com and was replaying it which had 9
samplers to access all the contents of the home page. I am confused on one
point , the Elapsed time is mostly above 400ms for the first sampler where
as the latency for this sampler is always 0 no matter how many times i loop.
Both Elapsed time and latency have one thing in common which is that both
take into account the delay happening because of the response getting from
across the internet, then how come latency is 0 all the time while the
elapsed time is more than 400ms for most of the time.
Thanks
Jatin
Deepak Shetty wrote:
if you are testing this out within your intranet , its possible you could
see extremely low or zero values.
regards
deepak
On Sat, Jan 9, 2010 at 2:59 AM, Jatin <[email protected]> wrote:
Hi all
I had a recorded script that will access the home page of a site. The
listener that i was using was a graph results listener. I wanted to save
the
results in a csv file for only two variables namely: latency and Elapsed
time. So in the configure dialog only selected these two parameters and
obtained a csv file.
My test plan organization was comprised of 9 HTTP samplers in one thread
group with all the samplers put into a loop controller looping forever.
For
all the tests that were looping in the controller i noticed that for the
first sampler the latency was always 0 even though the elapsed time was
around 400ms but not less than that. Is the latency value correct since
for
both these parameters the response has to be fetched from the server and
there could be delay in receiving the response. Please let me know if i
am
missing something here.
Some test run samples are as below :
459,0
140,137
63,40
179,134
137,137
120,120
53,39
40,40
113,113
275,0
157,154
62,40
540,144
149,148
33,33
53,38
37,37
113,113
470,0
159,155
62,39
178,133
176,176
120,120
54,39
38,37
113,113
Thanks
Jatin
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