Currently, I need to run SIPp scenario to simulate a large of call for loading test.
In the script of the caller, after receiving 200 OK message and before sending BYE message, I need to pause a duration to simulate for call duration as follows:
Caller:
Invite ------------->
...
200 OK <----------
ACK -------------->
pause milliseconds="xxx"
BYE -------------->
I need to generate random value for XXX to simulate for the different call durations which is similar to real calls.
I tried to generate random values in .csv file and get these values into caller script, but it's not successful. I get an error like this:
"Pause milliseconds, ... is not a floating point number!"
How can I generate a random value in a SIPp script?
From the SIPp reference document, which you may find a useful document for your future SIPp needs:
<pause distribution=> Indicates which statistical distribution to use
to determine the length of the pause. Without
GSL, you may use uniform or fixed. With
GSL, normal, exponential, gamma, lambda,
lognormal, negbin, (negative binomial), pareto,
and weibull are available. Depending on the
distribution you select, you must also supply
distribution specific parameters.
The following examples show the various types
of distributed pauses:
• <pause distribution="fixed" value="1000" /> pauses for 1
second.
• <pause distribution="uniform" min="2000" max="5000"/> pauses
between 2 and 5 seconds.
The remaining distributions require GSL. In
general the parameter names were chosen to
be as consistent with Wikipedia's distribution
description pages.
• <pause distribution="normal" mean="60000" stdev="15000"/> provides a normal pause with a mean of
60 seconds (i.e. 60,000 ms) and a standard
deviation of 15 seconds. The mean and
standard deviation are specified as integer
milliseconds.
Related
I am wondering about power automate flow and I issues I had.
I am trying to set up initialize variables for checking time (european standard time) in my rules.
Expression looks like this -
startOfHour(convertFromUtc(triggerOutputs()?['body/receivedDateTime'],'Central European Standard Time','t'), 't')
Under variables I have condition which (True/Not) like this -
YES - time is greater than 22:30 PM
NO - time is less than 8:00 AM
If condition is true, my e-mail is forwarded to another outlook mailbox.
If not, nothing happened.
But this flow doesn't work :D
Can you help me resolve it ?
Thanks a lot !
First part prtscrn
Second part prtscrn
Given the information provided, I suggest the following:
Get the current time.
Convert it to the desired time zone. You can use the built in function to avoid calculation errors.
Convert only hour and minute to Integer. For example, 14:33 would be 1433.
Compare integers. This is: if time is greater than 2230 and less than 830, then forward email.
The flow might look like this:
I have state change duration data between my object state in milliseconds.I am sending this data to graphite. I want to create a single stat panel which show me the percentage of the duration less than 20 seconds. How can I create it? Any idea or any similar scenario example will be useful.
myProjectName.FromStateToState.duration 10000ms
myProjectName.FromStateToState.duration 15000ms
myProjectName.FromStateToState.duration 21000ms
myProjectName.FromStateToState.duration 25000ms
myProjectName.FromStateToState.duration 30000ms
Assume for above scenario I expect my percentage should be %40. Because I have 5 duration data and 2 of them is less than 20 seconds. I am using Graphite as data source and Grafana as visualizing.
Temporary Solution
Because I couldn't get enough attention and any answer, I will add my temprorary solution to here. If I learn exact solution in the future I will post as an answer too.
Basically I created two counter like counterSuccess and counterFail. If state change duration is less than 20 seconds increase counterSuccess otherwise increase counterFail. Then get percentage of the success rate via following basic formula counterSuccess/(counterSuccess + counterFail).
Graphite commands at Grafana Panel:
A : sumSeries(myProjectName.FromStateToState.counterSuccess.count)
B : sumSeries(myProjectName.FromStateToState.counterFail.count)
C : sumSeries(#A, #B)
D : divideSeries(#A,#C)
I defined a single stat at grafana to show it as single percentage;
i want to control my sampler execution by using a random variable . I have a sequence of hits login,welcome,Bla,log out . i want the log out to be performed for 6/10 requests and let others do not login(so to speak 6 requests will perform the whole sequence including log out, 4 of them will perform will not perform log out ).How to achieve the same in JMETER
I have added a random variable rand and set it between 1-10 at the beginning of the thread group .Then just above Logout sampler i placed an IF controller were i check ${rand}>4 . How ever i always get all sequence executed . Please suggest what am i doing wrong
Your approach is a little bit weird, my expectation is that the problem is in the following areas:
Your IF Controller condition is wrong (check jmeter.log file for any suspicious entries)
Your random variable setting is wrong, i.e. it has the same value for all virtual users (threads) so they will either be executed all or none
So I would recommend using Throughput Controller or Switch Controller in order to set up this 60/40 distribution.
See Running JMeter Samplers with Defined Percentage Probability article for more details.
Random Variable in Jmeter is saved in long format be default so
${rand} > 4 won't work. You need to change
Condition to ${rand} > 4.0
or change Random Variable Output format to 00 (2 digits)
see Manual
This was accomplished by creating a combination of config element- random variable and an IF controller
1) a random variable was created with Minim and maxim value to meet above condition
2) and IF controller was able to check ${myrand}>4;
This had derived the desired result - thank you all
I want to test a rate-limiting app with Ruby where I define different behavior based on the number of requests per second.
For example, if I see 300 request per second or more, I want it to respond with a block.
But how would I test this by generating 300 requests per second in Ruby? I understand there are hard limitations based on CPU for example, but if I kept the number well below that limitation, how would I still send something that both exceeds the threshold and stays below?
Just looping N-times doesn't guarantee me the throughput.
The quick and dirty way is to spin up 300 threads that each do one request per second. The more elegant way is to use something like Eventmachine to create requests at the required rate. With the right non-blocking HTTP library it can easily generate that level of activity.
You also might try these tools:
ab the Apache benchmarking tool, common many systems. It's very good at abusing your system.
Seige for load testing.
How about a minimal homebrew solution:
OPS_PER_SECOND = 300
count = 0
duration = 10
start = Time.now
while true
elapsed = Time.now - start
break if elapsed >= duration
delay = (count - (elapsed / OPS_PER_SECOND)) / OPS_PER_SECOND
sleep(delay) if delay > 0
do_request
count += 1
end
I need to collect event logs from Windows those are logged before 10 seconds. Using pull subscription I could collect already saved logs before execution of program and saving logs while program is running. I tried with the code available on MSDN:
Subscribing to Events
"I need to start to collect the event logged 10 seconds ago". Here I think I need to set value for LPWSTR pwsQuery to achieve that.
L"*[System/Level= 2]" gives the events with level equal to 2.
L"*[System/EventID= 4624]" gives events with eventID is 4624.
L"*[System/Level < 1]" gives events with level < 2.
Like that I need to set the value for pwsQuery to get event logged near 10 seconds. Can I do in the same way as above? If so how? If not what are the other ways to do it?
EvtSubscribe() gives you new events as they happen. You need to use EvtQuery() to get existing events that have already been logged.
The Consuming Events documentation shows a sample query that retrieves events beginning at a specific time:
// The following query selects all events from the channel or log file where the severity level is
// less than or equal to 3 and the event occurred in the last 24 hour period.
XPath Query: *[System[(Level <= 3) and TimeCreated[timediff(#SystemTime) <= 86400000]]]
So, you can use TimeCreated[timediff(#SystemTime) <= 10000] to get events in the last 10 seconds.
The TimeCreated element is documented here:
TimeCreated (SystemPropertiesType) Element
The timediff() function is described on the Consuming Events documentation:
The timediff function is supported. The function computes the difference between the second argument and the first argument. One of the arguments must be a literal number. The arguments must use FILETIME representation. The result is the number of milliseconds between the two times. The result is positive if the second argument represents a later time; otherwise, it is negative. When the second argument is not provided, the current system time is used.