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

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0
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2answers
140 views

Tuning high-raffic nginx and wordpress server

I have been conducting load-tests (via blitz.io) as I attempt to tune server performance on a pool of servers running php 5.5, wordpress 3.9.1, and nginx 1.6.2. My confusion arises when I overload a ...
3
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0answers
67 views

Odd performance fluctation with php-fpm and nginx

I'm running a load test against a web service. It's a php application running on php-fpm and nginx, with fastcgi. There is a MySQL backend being used for small reads only. Invariably, I'm seeing a ...
0
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2answers
54 views

Tools for replaying _all_ HTTP traffic [closed]

I intend to log all production HTTP requests to be able to do load testing and analysis on that data later on. The log replaying software I have seen so far only seem capable of replaying GETs. Are ...
0
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0answers
31 views

How to profile how much memory my tomcat server needs?

I'm running a tomcat server on my own for the first time and I was shocked by how much memory Java apps need compared to apps in other languages. Since I am paying a web host, I want to determine how ...
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0answers
36 views

How to estimate server load?

I know a time of some cryptographic operation - let's say, for instance, it takes 0.4598s to perform a cryptographic action. I have a Intel Xeon 3.00GHz CPU (multi-core). How can I calculate (I skip ...
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0answers
35 views

stress testing a QOS switch

I need to test a network Switch that has QOS capabilities. I need to simulate a large network (preferably up to or exceeding 100 devices), and I need to do it as a live test. My requirements are: • ...
0
votes
1answer
48 views

How do I interpret this Load Test result?

We used BlazeMeter to evaluate our site's capability to handle load. I set up a simple script that logs in (using a special page which ensures each load test user has a different account), visits ...
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0answers
40 views

Improving siege results on nginx

My server has Nginx and I've been testing it with siege. top was showing the server wasn't even breaking a sweat with 150 connections from siege -c150 -d10 -t180S http://foo.com However, there were ...
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0answers
78 views

X520-DA2 10GbE PCIe NIC on Ubuntu 12.04 doesn't respond correct ARP information for a traffic tester

I'm trying to configure stand-alone test network to examine a server that has two 10GbE ports PCIe NIC. But I couldn't get any ARP responses of those 10GbE ports. To execute my test, it's necessary to ...
2
votes
1answer
205 views

High Mysql Connections

Having a challenge discovering why results are as they are. Perhaps missing something obvious. Sorry this isn't very specific. But if anyone has an pointers on areas to focus on that would be very ...
1
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0answers
149 views

How to get what IP Address Ranges used by Visual Studio Online Load Testing Agents?

I need to setup IP Whitelisting in an environment that I need to run some Visual Studio Online Load Tests on. I was able to find some documentation as to what IP Addresses Visual Studio Online ...
0
votes
1answer
102 views

Diameter traffic generator [closed]

I am in a hunt for a Diameter protocol simulator / traffic generator. It needs to be robust, actively maintained, well documented and portable (Solaris and Linux OS is expected). The goal is to ...
1
vote
1answer
84 views

Increase bandwidth per connection on a server

Requirement: I am load testing Rabbit MQ by generating a large number of requests/sec to the server (Server config: 8 core, 16GB). To achieve the above, I am generating load from a client machine at ...
2
votes
1answer
336 views

HAProxy max out at ~10,700 connections

I am stress testing ejabberd with Tsung. My EC2 instances setup as follows: Tsung : c3.xlarge ejabberd : c3.2xlarge HAProxy : t1.mirco When I let Tsung talk to the ejabberd instance directly, I ...
0
votes
1answer
100 views

how to benchmark an ubuntu webserver using Jmeter and create a test report.?

I have an ubuntu webserver(LAMP) running a clients website.I have already created a test plan with jmeter, what i would like to know is how would we benchmark the server with Jmter and create a test ...
0
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2answers
2k views

HAProxy configuration for RabbitMQ

I have an API that sends messages to RabbitMQ. I have a high availability RabbitMQ cluster behind HAProxy. When I load test my API I start seeing lots of this: Recovering from a network failure... ...
1
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0answers
52 views

emulate shared hosting load

I want to emulate some shared-hosting activity in testing environment. Is particularly interested I/O performance. Need to emulate: many sql queries, http queries, and some additional activity, ...
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0answers
842 views

Load testing HTTPS with Siege (open auth)

I am trying to load test our new website with siege. It is currently behind basic auth. I have edited my .siegerc file to include the right username and password (I've checked many times that it is ...
0
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0answers
130 views

How do I interpret this 'siege' load test results?

I'm performing some stress tests to a server with siege (v3.0.0), and I want to get back the following information: Number of requests that returned a status code < 400 Number of requests that ...
0
votes
2answers
103 views

How long/how hard should I stress test CPU and memory before declaring it OK?

One of our Dell PowerEdge LCDs was showing "CPU 2 machine check error", but I couldn't find anything in the logs regarding MCE or "Hardware Error." I cleared the message, but I wanted to run the ...
0
votes
1answer
135 views

Simple tool to test Amazon EC2 instance throughput?

I'm looking for a way to test the bandwidth throughput of a c3.8xlarge instance. I have two c3.8xlarge instances set up, so I imagine I could use the other to simulate the traffic. What's the ...
1
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2answers
50 views

How to limit disk performance?

I am load-testing a web application and studying the impact of some config tweaks (related to disk i/o) on the overall app performance, i.e. the amount of users that can be handled simultaneously. ...
1
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1answer
305 views

Continuous hits to the server with Jmeter

I have 100 threads in JMeter which I want to hit a server 12 times in a loop. But each time 100 threads will run and pause for 5 seconds and then resume hitting the servers for next 100 times. Here ...
0
votes
1answer
410 views

How can I determine Breaking point of my Web application using JMeter?

How can I determine Breaking point of my Web application using JMeter? I have executed the JMeter Testplan with different concurrent users load. EX. 300 users(0% error), 400 users(7% error in a ...
0
votes
1answer
83 views

Load Testing a Security/Gateway Appliance

In a couple weeks I will load testing a security/gateway appliance. We're a small residential college, and that "residential" means the traffic moving through the appliance is a bit like the Wild ...
4
votes
1answer
1k 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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2answers
2k 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
562 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 ...
1
vote
1answer
503 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
92 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
votes
2answers
433 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 ...
0
votes
2answers
213 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
414 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
55 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 ...
1
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0answers
252 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 ...
1
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0answers
87 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).
0
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1answer
74 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 ...
2
votes
1answer
233 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 ...
0
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1answer
298 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 ...
2
votes
2answers
964 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 ...
-4
votes
1answer
136 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
votes
3answers
807 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. ...
3
votes
3answers
2k 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 ...
0
votes
3answers
1k 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 ...
17
votes
1answer
2k 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 ...
54
votes
3answers
11k 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
110 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
176 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 ...
1
vote
1answer
512 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 ...
2
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3answers
669 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?