i'm using this example https://github.com/named-data-ndnSIM/ndnSIM/blob/master/apps/ndn-consumer-pcon.cpp
i want to retreive the simulation time , to assign it to a variable if it's possible because i need to divide the simulation period into two and use a loop for , exactly in the Ondata method :
and finally display results with simulation time , how can proceed
Thanks
i used Simulator::Now() but it doesn't work
Related
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
Im using influxfb to save the result of my jmeter test.
bellow is the part of code in JSR223 Listener where im in need of your help.
result = new StringBuilder();
result.append("Thro_5,")
.append("label=")
.append(escapeValue(sampleResult.getSampleLabel()))
result.append("count=")
count=sampleResult.getSampleCount();
result.append(count)
result.append(",duration=")
dur1=sampleResult.getStartTime();
result.append(sampleResult.getEndTime()-sampleResult.getStartTime())
*****here code to write data to influxdb*****
I'm trying this code in which i want to know the total duration sample has taken till now to calculate throughput.
a=sampleResult.getEndTime()-sampleResult.getStartTime()
.append(",throughput_=")
.append(totalSamplecount/(a/1000))
Last line in the above code , i.e sampleResult.getStartTime() ,it should be the starting time of a sample in the first loop.
If i have 3 samples in my test ,having loop count 3 ,i want to save the starting time of each sample in the first iteration and use that value in the calculation of throughput of each samples.
Then while i'm in 3rd loop i want to know the total duration it has taken so far from the first iteration.And totalsamplecount/duration
As far as i know sampleResult holds the result of current sample.
I'm stuck in 2 points:
in saving the start time of each samples and use it later for each iteration to calculate the duration.
In saving the total count of individual samples executed till now.
How can I get current time in 24 hours format in JMeter.
I tried ${__time(hh:mm a,)} but it results in AM/PM format.
As per How to Use JMeter Functions guide JMeter's __time() function output can be controlled via SimpleDateFormat class patterns.
Looking into JavaDoc:
you don't need a letter
you need to use capital H for 0-24 hours or lowercase k for 1-23 hours
So change function to ${__time(HH:mm,)} and that should be it
In Apache JMeter 5.2, current time can be captured in User defined variable and then used in Rest payloads as following screenshot:
expression - ${__timeShift(yyyy-MM-dd'T'HH:mm:ss'.000+05:30',,PT0S,,)}
output - "2020-06-06T18:10:59.000+05:30"
Here, date and time format can be changed as per the need.
Once current date and time is captured in user defined variable then it can be used as "${now-date-time}" in REST requests.
It could also be possible that we face a scenario where there should be gap of, let's say, 1second between start time and end time while constructing request. In such case, following expressions can help:
now-date-time : ${__timeShift(yyyy-MM-dd'T'HH:mm:ss'.000+05:30',,PT0S,,)}
now-date-time-plus-one-second : ${__timeShift(yyyy-MM-dd'T'HH:mm:ss'.000+05:30',,PT1S,,)}
Following example better explains it:
I'm trying to write a simple program that could perform some tasks at specified time.
Here's what I have:
If (TimeOfDay = "06:12:50") Then
MsgBox(TimeOfDay)
End If
If (TimeOfDay = "06:13:58") Then
MsgBox(TimeOfDay)
End If
This code is placed inside Timer1_Tick, I set time interval - 1000 and it works OK, I get TimeOfDay value in MsgBox when current time is equal to my specified time.
But what should I do to make it work dynamically? For example: I want to type TIME value via TextBox and pass it to Timer1_Tick I need to do it as many times as I want so everytime current time matches with my specified hour,minute,second it would work, but I don't know where I have to put my code, because if I place code in while loop and in Time_Ticker1 it runs while loop every second and UI crashes immediately.
Thank you in advance for your help!
Have you considered setting a Windows Scheduled event of MSG to yourself using the AT command line? The operating system timer/scheduler, dialog, storage and queue are already there and the MSG can optionally be dismissed if there is no one to receive it within a set amount of time. Example to send the time at 06:12:15 run the following into a command shell.
AT 06:12:15 msg %USERNAME% It is 06:12:15 am
How can I execute a function every 20us for example?
I aim to log the busy/free state on a CSMA channel using ns3::CsmaChannel::IsBusy (is that the best way to do it?) I have to call it at regular time interval to log each returned value and time.
You can use
simulator:: schedule function
to schedule function on a regular time interval
Simulator:: Schedule (Seconds(20.0), &function name, parameter1, parameter 2)
This is the syntax for scheduling an event for every 20 seconds