Skip to main content

Processing JMeter Results using awk

awk is Pattern scanning and processing language. Its name is derived from its authors “Aho, Weinberger, and Kernighan”.
Some of its features are:
  • Awk views a text file as records and fields
  • Awk has variables, conditionals and loops
  • Awk has arithmetic and string operators
  • Awk can generate formatted reports
Syntax:
awk '/search pattern1/ {Actions}
    
/search pattern2/ {Actions}' file
Herein :
  • search pattern is a regular expression.
  • Actions – statement (s) to be performed.
  • several patterns and actions can be used in Awk.
  • file is the Input file.
  • Single quotes around program avoids shell interpreting any special characters.


Let’s Consider following jmeter summary file -


summary +    41 in  15.4s =    2.7/s Avg:  2234 Min:   383 Max:  6974 Err: 0 (0.00%)
summary +    57 in  21.5s =    2.6/s Avg:  2548 Min:   618 Max:  4528 Err: 0 (0.00%)
summary =    98 in  32.5s =    3.0/s Avg:  2416 Min:   383 Max:  6974 Err: 0 (0.00%)
summary +   108 in  21.8s =    5.0/s Avg:  1291 Min:   229 Max:  6317 Err: 0 (0.00%)
summary =   206 in  52.5s =    3.9/s Avg:  1827 Min:   229 Max:  6974 Err: 0 (0.00%)


Let’s assume that we want to print lines where avg response time is more than 2500ms
awk '{if($9>2500){print $0}}' file.txt


Herein $9 is the the 9th field in log file and $0 denotes all of record


Hence we would get following output -
summary +    57 in  21.5s =    2.6/s Avg:  2548 Min:   618 Max:  4528 Err: 0 (0.00%)


Or printing the records with avg response time more than 2400ms


awk '{if($9>2400){print $0}}' file.txt


And we would get following output -


summary +    57 in  21.5s =    2.6/s Avg:  2548 Min:   618 Max:  4528 Err: 0 (0.00%)
summary =    98 in  32.5s =    3.0/s Avg:  2416 Min:   383 Max:  6974 Err: 0 (0.00%)


Find the total number of record in jmeter.log file -


wc file.txt | awk ‘{print $0}’


Consider that you are logging custom variables on Jmeter log file (i.e. email address etc) and now you want to figure out which email address caused higher latency. Can you guess how you can achieve it?

Popular posts from this blog

Distributed Load Testing with JMeter

Distributed Testing with JMeter When one JMeter client is not able to offer amount of threads required for load testing then distributed testing is used. In distributed testing - One instance of JMeter client can control number of JMeter instances and collect data from them Test plan does not need to be copied to each server, the client sends it to all servers note - JMeter will run all the threads on all the servers, hence 100 threads on 5 JMeter server would pump 500 threads in total. If many server instances are used, the client JMeter can become overloaded and so the client network connection. This has been improved in latest versions of JMeter by switching to Stripped modes, but you should always check that your client is not overloaded When Client (master) and Server (slave) nodes are on same network (no SSH required) Configure Client Node Herein client is referred as the machine controlling test execution on other JMeter nodes. This is also referred

Using chrome console to test xPath and css selectors

Note: If you are new to java and selenium then start with selenium java training videos .       Since the advent of selenium there have been many plugin to test xPath / css selectors but you don’t need any of them if you have chrome browser. Using Chrome console you can test both xPath and css selectors. Launch website to be tested in chrome browser and hit F-12 and you would see chrome console opened in lower pane of application - Hit escape key and console would open another pane to write element locators - And now you can start writing xPath or css selectors in chrome console and test them - The syntax for writing css id - $$(“ ”) And hit the enter key. If your expression is right then html snippet of the application element corresponding to the css selector would be displayed - If you mouse over the html snippet in chrome console then it would highlight the corresponding element in application - If you want to clean console of previously wri

Verify email confirmation using Selenium

Note: If you are new to java and selenium then start with selenium java training videos .     Email confirmation seems to be integral part of any registration process. I came across an application which lets you provide your email address. You can follow the sign up link in you mail and then complete the registration process. Lets consider we provide GMail address for it. Now if were to use only Selenium then we would have to follow following steps - Launch GMail using Selenium; Some how search for new mail in the list of available mails; Some how click on it; Parse the mail message; Get the registration link; Follow up with registration process What do you think of an approach in which you can