The load-testing tag is for issues relating to the setting up or running of load tests.

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2
votes
3answers
671 views

Is there a service that simulates high traffic using data from log files?

I need to test a saas service load by sending 1000s requests/sec from multiple remote sources. The urls need to be from my access log. Is there a service that does that?
0
votes
1answer
151 views

how to simulate load on multiple app servers when nginx balances load according to IP

I use httperf from external server to stress test my app (on scalr/EC2). However nginx is configured to distribute load according to IP address of the source (so each app server will receive all the ...
0
votes
2answers
105 views

load testing based on access log recording [duplicate]

Possible Duplicate: Tools for load-testing HTTP servers? I need to load test a saas system to find capacity+bottlenecks. My preferred method is to record a few 100,000s or millions of real ...
1
vote
2answers
1k views

Stress Testing / Load Testing Proxy services / web servers

What are the best load testing tools for stress testing web servers and proxy services such as NAT. Some metrics to consider include throughput. hits per second. machine load.
2
votes
1answer
2k views

Inefficient CPU usage by Tomcat

I am using tomcat to convert pdf to png. I was using Jmeter to load/throughput test the app using a Intel(R) Xeon(R) CPU X5550 @ 2.67GHz server which has 16 hyper-threaded cores. Tomcat6 had 2gigs of ...
1
vote
1answer
413 views

How to test HTTP Requests/sec + CPU + RAM usage?

Trying to evaluate the requirements of my Web application, I wanted to put it under load and at the same time check how it scales on memory and CPU. But running AB/HTTPerf and htop/"pidstat -C" in a ...
1
vote
1answer
195 views

Test PHP script load on Debian server

Anyone maybe know is there Linux (debian) tool for testing PHP application performance? I want to check in witch places my PHP/MySQL script need optimization.
3
votes
3answers
745 views

Apache/Tomcat Parameters

I have a Medium server on EC2. I don't know that much about Apache or Tomcat - they are up and running, but other than that I don't have advanced knowledge of how to tinker. I know that I can set the ...
1
vote
1answer
235 views

Tool to replay access.log files with cookies?

Is there any tool that will replay combined access.log-style (or any other format) files back and preserve the cookies? We need to load test our application with real user accesses but we really need ...
0
votes
1answer
249 views

How to replay access logs in the presence of timing problem?

I'd like to replay the IIS or Tomcat access logs to do load testing. The access logs contain only Get request, so the session data/post data is not a problem here. However two timing problem is ...
0
votes
3answers
852 views

How do I check how many users can a server handle before going online? [duplicate]

Possible Duplicate: How do you do Load Testing and Capacity Planning for Web Sites I'm moving a site from shared hosting to a VPS, which I have set up. I've made a change to my hosts file ...
1
vote
4answers
600 views

Stress test a server for simultaneous connection

I am trying to figure out a practical way to stress test a server for 300 to 600 simultaneous connections. Any advice? Thank you everyone for the help. To be more specific (sorry I wasn't before) ...
0
votes
4answers
124 views

Network testing: looking for any test daemon and client combination to measure firewall load with 500..2000 incoming connections

I need to measure IPTables/inline Snort impact on performance, so need to put my test server under a good load. Unfortunately, no hardware traffic generator is available, thus connections must be ...
2
votes
3answers
874 views

stress test video streaming [closed]

is there a way to stress test video streaming? Basically simulating a high number of people simultaneously streaming a video? This is an amazon 'cloud' service that will be enabled for my site.
1
vote
2answers
464 views

Are there any tools for load / stress testing that can simulate image, video and audio uploads to Amazon EC2?

As part of my web application users can upload photos, audio and video files from a Flash SWF to my EC2 based upload server. I want to find a tool that I can use to stress test the EC2 instance (which ...
0
votes
1answer
117 views

Firewall perfomance test

What tools you can recomend for firewall and/or VPN perfomance testing (TCP & UDP traffic) ? iperf?
2
votes
2answers
1k views

Coldfusion 8 Application Crashes Under Heavy Load

We have a CF8 app that runs for 20-25 minutes before crashing under heavy load ~ 1200 users. This load is generated by our load testing tool: 1200 users ramped up in 5 mins (approx behavior of our ...
3
votes
2answers
1k views

Nginx / uWsgi / Django site can handle more traffic with rewrite URL

I'm running a Django app, using uWsgi behind Nginx. I've been doing some performance tuning and load testing using ApacheBench and have discovered something unexpected which I wonder if someone could ...
7
votes
4answers
17k views

How to generate CPU load on Linux server

I would like to test fake load on the server, I'm looking for some burn-in or benchmark command line utility that would generate CPU load on the system. I would like to be able to burn-in only CPU ...
2
votes
3answers
827 views

How do you know what number of page views per second is an acceptable amount for your server?

Apache's AB tool allows us to test our server to see how many pages per second a server can handle. The results are obviously is going to vary based on the specs of the server hardware and software ...
1
vote
2answers
582 views

Advice for simulating a high load on a web application — realistic httperf parameters

I have already selected httperf as the load testing tool to use. I'm trying to figure out some realistic parameters to use, and if I need to use multiple machines to create more simultaneous ...
1
vote
2answers
2k views

How to determine approximate maximum number of requests?

I'm building a quite simple web application, and need to get some rough understanding of how much load my server can take. Of course, this depends on a whole lot of factors, but I just need a rough ...
2
votes
2answers
262 views

Globally-distributed load testing service providers

We are looking for a third-party service providers to load-test our website infrastructure, preferably across multiple geos. Any recommendations? We have done internal load testing with Load Runner ...
0
votes
1answer
409 views

httperf repeat wsesslog

For httperf with a wsesslog is there a way to repeat the activity in the script without wrapping it in a shell loop? If I do httperf --server=test.foo.com --wsesslog=20,0,foo.wsesslog I get 20 ...
1
vote
7answers
517 views

Can anyone please recommend any good Load Testing software? [closed]

Can anyone please recommend any good Load Testing software? I have a website which updates scores every minute via ajax calls and need a load testing software which supports ajax calls (javascript) ...
3
votes
1answer
2k views

Tips for benchmarking and load testing web server?

I'm trying to benchmark and load test various web server setups (mod_php vs php as fastcgi, max/min worker/thread configuration, and so on). I'm starting with ab, but would be interested in other ...
1
vote
2answers
1k views

How to calculate server bandwidth / load estimates?

What's either a good rule of thumb or a method to estimate load on a Windows server for a php application? How do I estimate bandwidth required for 1000 users on the site, or 10,000?
2
votes
1answer
456 views

How to interpret ab result?

I am using ab to load test my server. As I increase the concurrency number from 1, the requests per sec. goes up. I also see time per request (mean) goes up, while time per request (mean across all ...
1
vote
2answers
174 views

Load and performance testing for webapps with JavaScript support

Years ago I used OpenSTA to perform load and performance tests for web applications. I remember that it offered great recording possibilities which enabled us to quickly create new test scripts. ...
2
votes
4answers
1k views

Linux testing - CPU & disk

I am a bit rusty lately. What is the standard way to test CPU and disk I/O these days?
0
votes
1answer
200 views

Request bursting from web application Load Tests

I'm migrating our web and database hosting to a new environment on all new machines. I've recently performed a Load Test using WAPT to generate load from multiple distributed clients. The server has ...
0
votes
1answer
2k views

ApacheBench result to a file

I would like to save ApacheBench (ab) tool on linux to a file. When I run it with -v 2 it displays some results in my ssh window. How to move these data into a file and make sure that it will not ...
1
vote
0answers
87 views

Is there anyway way to speed up Exchange 2007's Load Generator tool?

I'm running Load Generator to test our new deployment before going live and the initialization process has been running for two days and is only at 25% for ~58000 user test. Does anyone know of a way ...
6
votes
4answers
6k views

How can I replay Apache access logs back at my servers to do real world load testing?

I looked at http://serverfault.com/questions/2107/tools-for-load-testing-http-servers but I couldn't see how to replay my own existing logs in any of those tools. I have a bug that only occurs under ...
2
votes
1answer
295 views

Recommendations for Java Web Server [closed]

I am currently using DBCP for connection pooling since it is more or less provided with tomcat and easy to setup. I am thinking about migrating to Glassfish or Jetty and haven't yet determined which ...
1
vote
3answers
654 views

Is there any way to test how many users an application can handle? [duplicate]

Possible Duplicate: How do you do Load Testing and Capacity Planning for Web Sites I am developing an PHP MYSQL application running on a Linux server I was wondering whether there is any ...
0
votes
5answers
4k views

How many simultaneous requests would you expect a webserver to handle

I know there is no straight answer to this question - depends on specs etc. But what is the order of magnitude of simultaneous requests you'd expect a server to handle? Currently, our server starts to ...
1
vote
3answers
309 views

Network load tester app

I'm looking for an app that I can run to test available bandwidth (and error rate) over a LAN. I'm thinking of a pair of programs that run on two computers and send a big known block of data from one ...
1
vote
1answer
873 views

How can I Load Test an application that lives on a terminal server

I have an application that lives on a Windows 2008 Terminal Server. Is there a way I can simulate a bunch of users, 100 for example, logging into the server, and then launching an executable? The ...
2
votes
3answers
1k views

Can I simulate concurrent wireless connections for load testing?

Our office internet typically has about 25-30 computers connected. For an upcoming event, we will have to support about 100 connections, mostly via wireless, for a few days. I'd really like to test ...
3
votes
1answer
893 views

Tools for load-testing a videoserver

I'm looking for a tool capable of setting up multiple RTSP streaming sessions and keeping them alive for a configurable amount of time. Ideally this should not be videoserver specific and as ...
0
votes
1answer
98 views

program to emulate web browsing

I develop Web cache application for video content. I need to test it with sites like Youtube. Are there any applications which can be used to emulate random browsing of Youtube so I can stress-load my ...
2
votes
2answers
4k views

Throttle down CPU speed of VMWare image

Is it possible to throttle down the CPU speed of a VMWare image so that i can simulate a slow computer and test how my software works on a slow machine? Or is there any other way to do this? Im using ...
0
votes
3answers
2k views

Load Test ESXi Server

I've setup a a pre-production ESXi server and I'd like to do some load testing on the guest operating systems I have on it. Specificly what I'm interested in is Disk access, will the guest OS's be ...
2
votes
4answers
6k views

MySQL load/stress testing

I am going to do load testing on mysql server, could someone recommend good metrics to concentrate on? Any automated way(read software) of getting/tracking them? Thank you!
0
votes
1answer
1k views

Web Capability Analysis Tool (WCAT) - No Output XML

I have WCAT 6.3 running fine up until the point where it is supposed to generate the log.xml file. In the cmd window, I just see the last Cooldown update, like so: ...
3
votes
5answers
1k views

Stress testing a hosted IIS server

I have a hosted environment that is migrating to some new hardware. I need to stress this new implementation remotely. Is there a quick and clean way to do this? I don't need anything fancy, just ...
5
votes
1answer
2k views

Load-testing tools for Active Directory?

Are there any tools out there that can torture-test and measure AD performance? We're looking at a fairly major expansion of our environment (think tens of thousands of computers) that will throw lots ...
37
votes
7answers
50k views

How can I monitor hard disk load on linux

Is there a good command line utility to monitor hard disk load on linux? Something like top but then monitoring disk activity i.s.o. cpu usage. More specifically, I suspect that for some (heavy load) ...
1
vote
2answers
833 views

mass mail/load test/newsletter from Domino/Lotus Notes system

I need to generate a few thousand mails in Lotus Notes (with attachment) in order to test an extension to the Domino router I wrote. How can I do that? It may not be mails that are send into Domino ...