The load-testing tag is for issues relating to the setting up or running of load tests.
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How to perform this load test in web server? [duplicate]
How do one perform a 20-user download and upload simultaneously load test to the system to determine the server bandwidth requirement.
-2
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1answer
54 views
Tools to measure production web server load? [closed]
I see plenty of tools to stress test a web site, I'm curious how loaded our web servers really are. How many queries can IIS 7.5 handle on Windows Server 2008 R2 - how close am I to maxing out a ...
2
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1answer
87 views
Why are 32-bit application pools more efficient in IIS? [closed]
I've been running load tests with two different ASP.NET web applications in IIS. The tests are run with 5,10,25, and 250 user agents. Tested on a box with 8 GB RAM, Windows 7 Ultimate x64. The same ...
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36 views
Load Testing Result Parameters
An enterprise application consisting of php, perl and a database is load tested. Php is running on httpd as a module, and database is on MySQL. Os is RHEL 5.5 and the load is simulated using Jmeter.
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2answers
124 views
How to test a site with multiple concurrent users from various IPs (load test)?
I need to test a site and how it handles several connections simultaneously. Each user must:
Connect from a different IP address
Simulate a browsing user --> (open a few pages, click a few buttons)
...
2
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2answers
61 views
Does mysql connection error count ever flush or will the host eventually get blocked?
During performance testing of our application I found that under extreme loads one problem that can occur is the occasional mysql connection error (i.e. at this stage I don't believe it is fair to ...
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0answers
55 views
Monitoring “Request Wait Time” in PerfMon
A website I'm load testing is adding requests to the iis request queue. I can see the queue size getting bigger using the relevant performance counter:
\ASP.NET\Requests Queued
However I'm trying ...
2
votes
2answers
75 views
When load testing, is network 'distance' a factor?
I have a server application running on EC2 behind a Elastic Load Balancer.
I have tested this using Blazemeter - a jMeter based load testing service that also runs on EC2 based infrastructure. The ...
2
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2answers
166 views
CPU, Memory, Network, IO resources are under utilized when I tried various JMeter load testing
I am trying to assess the performance of my web server which has Linux and Apache. I tried load testing using JMeter, and gradually increased the number of requests and recorded the response time as ...
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2answers
135 views
Load/stress testing methodology. What to expect and how to interpret results?
We have this new client for whom we're reviewing our server infrastructure.
I know pretty well the web API because I've helped building it and now I'm on my own maintaining and pushing it forward, so ...
0
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1answer
90 views
Load testing nginx inside AWS
I'm trying to load test nginx running on AWS. I need to try to optimise it to handle 1Gbps of inbound traffic.
Currently I've got it to peak at 85Mbit/s by running nginx on an m1.large with 4 other ...
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0answers
47 views
nginx+mysql5 loadtesting configuration strangeness
i am trying to setup a new server running on debian6 and trying to make it work smooth under load. i ve used a wordpress site as a test object, and tried the configurations on http://blitz.io. when i ...
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0answers
98 views
Stress testing Django app - how to improve throughput?
I'm having my first attempt at stress testing a simple django web app running from gunicorn and nginx which I’ve put on a small 256MB Rackspace Cloud server.
Using httperf, I increase the number of ...
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0answers
22 views
Scriptable framework to surf a webpage and display flash content on ec2
Here's my problem: I have a flash application which i need to load test. (Does a couple of connections and other stuff, hard to loadtest)
The easiest way to do this would probably spawn many ( 100 - ...
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0answers
38 views
Configure SilkPerformer to work with Fiddler
Does anyone know how to capture a Silk Performer HTTP request, using Fiddler?
We can't seem to capture this information no matter what we try (it seems like it ignores all proxy settings).
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1answer
62 views
Windows Memory being freed before limit is hit during a load test
I'm running a load test on a .NET web application over a LAN. The server hosting the web app is a VM, Windows Server 2008 R2, with 2 GB of RAM and a 3GB limit for virtual memory. No other web ...
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1answer
151 views
How to calculate server requirement [duplicate]
Possible Duplicate:
How do you do Load Testing and Capacity Planning for Web Sites
How to calculate server requirement. We have a small website, now in that website we are going to conduct ...
2
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1answer
119 views
ab Failed Requests
I've built a simple apache + django + mod_wsgi webapp that I am testing on my local machine.
I've started load testing it using ab - and I am seeing a few failed requests.
ab -n 500 -c 100 ...
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1answer
160 views
SonicWALL SRA blocks load test as a DoS attack
I am evaluating the Web Application Firewall (WAF) service on a SonicWALL SRA virtual appliance. When I try to load test the protected website, SonicWALL blocks my requests with this error: "Reset ...
-1
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1answer
401 views
Estimating Concurrent Users for Web Applications - the 10%/10% rule of thumb [closed]
I know that there is no substitute for knowing your application intimately and testing but I've always used the "10% rule" as a rule of thumb when it comes to estimating concurrent users.
e.g.
Of ...
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0answers
119 views
Permission denied running WCAT remotely on EC2
I've been trying to configure a WCAT controller and several WCAT clients in EC2 for load testing a web application.
I have wcat successfully running from localhost and executing a scenario without ...
2
votes
2answers
364 views
Automated Load/Stress testing via a continuous integration server
My company currently has stress tests that are run manually through JMeter. We also use TeamCity for automation of JUnit testing.
It's become clear that we need to automate our stress testing as well ...
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0answers
99 views
Performance and Resilience testing DNS servers
We are going to run a DNS server in our company and we want to test it before we allow our users make DNS requests using the server. I want to be able to simulate huge load on the DNS server and I ...
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1answer
107 views
What hardware factors may be considered bottlenecks on a Hyper-V virtual server during load testing? [closed]
Our organization is load testing our application using virtual servers via Hyper-V to see what the user load can be using fair equipment on a single box setup.
The developer group questioned the ...
5
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3answers
470 views
Virtualbox HTTP load testing, host CPU overload issues
I'm doing HTTP load testing benchmarks (using Apache Benchmark and Siege) on a small Java EE 1.7.0 / Tomcat 7.0.26 application running on a Debian Squeeze 6.0.4 x64 virtualized with Virtualbox 4.1.8. ...
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3answers
1k views
Load testing sites behind an EC2 load balancer with ApacheBench
When ever I try to load test a site that is load balanced on EC2 I get the following message:
ab -n 20 -c 20 http://www.somesite.com/
Benchmarking www.somesite.com (be patient)...Send request ...
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3answers
602 views
Interpreting SQLIO test results
I've been running a series of load tests on a dedicated DB SAN from a pre-production cluster (Dell R710 connecting to a dedicated RAID10 SAN over 2 gigabit ethernet connections), and I'm not sure if ...
9
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1answer
744 views
How do you do Load Testing and Capacity Planning for Databases
This is a Canonical Question about Capacity Planning for Databases.
Related:
Can you help me with my capacity planning?
How do you do Load Testing and Capacity Planning for Web ...
29
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3answers
3k views
How do you do Load Testing and Capacity Planning for Web Sites
This is a Canonical Question about Capacity Planning for Web Sites.
Related:
Can you help me with my capacity planning?
How do you do Load Testing and Capacity Planning for ...
0
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1answer
96 views
Large amount of traffic incoming. Preparation tips
Looking for any tips on improving performance on the server level as my client will be getting some heavy traffic in the next few days.
Using a 1and1 cloud vps and increased the memory pretty high on ...
4
votes
1answer
119 views
How can I safely estimate the max # of users based on a load test measurement like max hits/second?
In my specific case, I am working with websites, however the question is more general than that. What I’m looking for (I think) is something like a formula.
The situation is that I’ve already done ...
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1answer
374 views
How to Benchmark an x86 Router?
How would one go about objectively benchmarking different x86 server for their potential as x86 routers?
One idea I had is to setup two subnets, 10.0.0.0/24 and 10.0.1.0/24, on opposite sides of a ...
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3answers
334 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?
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1answer
124 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
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2answers
82 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
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2answers
345 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
765 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
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1answer
261 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
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1answer
173 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.
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1answer
120 views
My new site (just launched) is under very heavy traffic / load at the moment. What can I do? [closed]
I'm panicking! :)
I'm hosted on GoDaddy (I know, I know...), economy web hosting. Any help would be wonderful. The site is pretty slow at the moment (an image rating site).
EDIT: My images are being ...
3
votes
3answers
388 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
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1answer
179 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
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1answer
190 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
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3answers
439 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
316 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) ...
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4answers
96 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
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3answers
567 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
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2answers
261 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
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1answer
112 views
Firewall perfomance test
What tools you can recomend for firewall and/or VPN perfomance testing (TCP & UDP traffic) ?
iperf?
2
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2answers
874 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 ...
