performance-testing

How to read Chrome Timeline?

怎甘沉沦 提交于 2019-12-24 05:49:22
问题 Google Chrome browser has a Timeline tab in the developer panel which shows how long it takes to render a page. But I do not understand why it shows 17s while the page completes rendering within 4s. The start and end points of the measurement seems to be off. Is there an explanation of this measurement behavior? 来源: https://stackoverflow.com/questions/23961458/how-to-read-chrome-timeline

Jmeter include controller relative path

荒凉一梦 提交于 2019-12-24 05:22:12
问题 We are using Jmeter-maven-plugin and created a maven project in eclipse. My test file (MainTest.jmx) is in src/test/jmeter folder, in this test we used "include controller" to reuse test fragments. These fragments are stored in src/test/jmeter/fragments. We tried following relative path in include controller ../fragments/FragmentA.jmx src/test/jmeter/fragments/FragmentA.jmx Tried propertiesUser option in pom.xml <propertiesUser> <fragments.directory>src/test/jmeter/fragments</fragments

send requests with multiple ip address to my application using apache-JMeter(IP Spoofing)

时间秒杀一切 提交于 2019-12-24 02:13:06
问题 Is there any way for IP Spoofing in jmeter.i have tried it by "CSV data set config".Is there any other way..please let me know.Thanks in advance. 回答1: Following steps will help you implement the IP Spoofing: Request for 6 static IP address (it depends on your requirement) from your IT team. Go to IPv4 properties, add the primary IP, Subnet mask, Gateway, DNS etc. Click on advanced button, in IP Address section add all the remaining IP address. Save all the 6 IP address in a CSV file Now open

Why is multiprocessing.Pool.map slower than builtin map?

拜拜、爱过 提交于 2019-12-24 01:25:39
问题 import multiprocessing import time from subprocess import call,STDOUT from glob import glob import sys def do_calculation(data): x = time.time() with open(data + '.classes.report','w') as f: call(["external script", data], stdout = f.fileno(), stderr=STDOUT) return 'apk: {data!s} time {tim!s}'.format(data = data ,tim = time.time()-x) def start_process(): print 'Starting', multiprocessing.current_process().name if __name__ == '__main__': inputs = glob('./*.dex') builtin_outputs = map(do

How to make Jmeter recognize “localhost” URL?

血红的双手。 提交于 2019-12-23 21:52:09
问题 How to do performance testing of localhost url which is accessible only to my computer? I am able to do performance testing using jmeter for live websites like google etc but jmeter is not able to detect local url. URL of application-192.168.121.20:8001 2. Output of View Results Tree listener- ALL failed http alerts Description of screenshot of HTTP Request sampler- added only server name i.e URL – 回答1: JMeter doesn't care whether application under test is local or remote, if you cannot hit

Measuring execution time ECLiPSe CLP (or Prolog)

醉酒当歌 提交于 2019-12-23 21:28:30
问题 How do I measure the execution time of a method in ECLiPSe CLP? Currently, I have this: measure_traditional(Difficulty,Selection,Choice):- statistics(runtime, _), time(solve_traditional(Difficulty,Selection,Choice,_)), time(solve_traditional(Difficulty,Selection,Choice,_)), time(solve_traditional(Difficulty,Selection,Choice,_)), time(solve_traditional(Difficulty,Selection,Choice,_)), time(solve_traditional(Difficulty,Selection,Choice,_)), time(solve_traditional(Difficulty,Selection,Choice,_))

Jmeter : How to increment a value inside the request

谁都会走 提交于 2019-12-23 12:44:28
问题 I have a sample request like a bellow { "schema": "urn:com.xyx9723.syodhnc:bulk.v1", "version": "7-06-26201", "msg": [ { "topic": "tags/kdhud/${ID}/sadknnf", "ids": [ { "_time": "2107-09-09 13:13:12", "id": "TID-2153656--00089312121" }, { "_time": "2107-09-09 13:13:12", "id": "TID-2153656-00089312122" }, { "_time": "2107-09-09 13:13:12", "id": "TID-2153656-00089312123" }, { "_time": "2107-09-09 13:13:12", "id": "TID-2153656-00089312124" } ] } ] } When it comes to real test I have to send

Does closing Scanner affect performance

人走茶凉 提交于 2019-12-23 12:42:48
问题 I was solving a competitive problem and in problem, I was taking user input using scanner. These are 2 code segments, one closing scanner and one without closing scanner. Closing scanner import java.util.Scanner; public class JImSelection { public static void main(String[] args) { Scanner scanner = new Scanner(System.in); int n = Integer.valueOf(scanner.nextLine()); while (n-- > 0) { double number = (Math.log(Long.valueOf(scanner.nextLine())) / Math.log(2)); System.out.println((int) number -

Unexpected lower access time in multiple process scenario as compared to single process scenario

余生长醉 提交于 2019-12-23 12:30:13
问题 I am accessing a shared library (shared array data structure)from program1 and find the access time to read all elements of that array. I got around 17000 ticks while only Program1 executed alone. Now when I execute program2 (having empty while loop to hold it from termination) in another tab first , then run program1 and measure the access time to read all elements of that array. To my surprise now I am getting 8000ticks as compared to previous scenario where only Program1 executing. It

What does the OProfile warning 'dropping hyperspace sample' mean?

最后都变了- 提交于 2019-12-23 12:28:44
问题 When using the statistical execution profiler OProfile to visualise a callgraph profile for my C application, it includes the following warning multiple times. The warning is rather cryptic to me: warning: dropping hyperspace sample at offset 1af9 >= 2be8 for binary /home/myuser/mybinary I'm using OProfile in a Xen virtualized environment like this: modprobe oprofile timer=1 opcontrol --no-vmlinux opcontrol --start (wait for profiling data to accumulate) opcontrol --stop opreport --session