Questions tagged [load-testing]
The load-testing tag is for issues relating to the setting up or running of load tests.
168
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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 ...
CommunityBot
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1
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87
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jmeter finding max sustainable throughput
I would like to use Jmeter to keep sending requests at the maximum sustainable interval - where the number of running threads (displayed before the / sign in the top right corner) stay constant e.g. 2....
- 101
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1
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453
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Laravel, nginx, Docker, PHP - Load Test, Very Unsatisfactory Results
We are creating two servers in Hetzner (https://www.hetzner.com/cloud).
Parmeters of both:
CPX51 - vCPU 16 AMD, RAM 32 GB.
On one server with Ubuntu 22.04 we install Docker and run the PHP application ...
- 561
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151
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Load test (single client vs thousands of clients)
Hello Serverfault community,
I am currently working on a .NET Web API that utilizes MS SQL as its backend to process data and return straightforward results. To ensure the API's performance and ...
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5
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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 databases?
What are some ...
- 2,558
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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 sample,...
CommunityBot
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1
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How can do Load Test against WebSocket?
We will have to do a load test for the first time. To tell the truth, I don't know exactly what to look for and how to do it. I have also researched resources on this subject but I could not obtain ...
CommunityBot
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High response time on Azure Web App
I have developed a RESTful api that I deployed on Azure Web App. While performing the load test using JMeter, I see that the response time is huge i.e ~18secs. This response time appalls me because ...
CommunityBot
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2
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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 ...
CommunityBot
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2
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1
answer
2k
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Jmeter distributed testing over ssh tunnel
While configuring jmeter distributed testing i faced a problem of remote connection to servers which are behind NAT.
Node with jmeter client has external ip, all servers are in different LANs behind ...
CommunityBot
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0
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1
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46
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Stress Test Interpretation
I ran a basic stress test and am having trouble interpreting the results.
Setup
Super simple node.js API (returns a string for a GET request) deployed on heroku's free tier
Increased RPS until I ...
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892
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Running out of TCP ports in linux(Red hat) while doing load test
I'm doing load test for 30000TPS(transaction per second) using gatling, I facing the following error
i.n.c.u.Errors$NativeIoException: newSocketStream(..) failed: 99128 (99.43%)
Too many open ...
- 8,757
0
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1
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713
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Very low memory usage during heavy load test
I have a wordpress website wich I did a heavy load test on. As you can see below the CPU usage is of course high but at the same time the RAM usage never goes higher than 0,4%. The load test doesn't ...
- 263
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Assume platform performance based on Nginx - ngx_http_stub_status_module
Nginx is placed in front of a microservice architecture on which we don't have any insight. We retrieve the metrics exposed by the http stub status and would like to compute an indicator of the ...
- 33.3k
0
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2
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56
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Purpose of Selenium in load testing
What is the role of Selenium in load testing a webpage if it cannot generate 200 or 300 requests?
I understand, the client side automation can be done. But how do I test my web application for a real ...
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0
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857
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What matters when optimizing a nginx server for audio/video streaming?
I am looking for opinions and resources. Serving rtmp, dash, hal with nginx-rtmp-module. Test streaming from another machine with ffmpeg, but will probably use OBS later on.
Which nginx settings ...
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5
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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
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3
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383
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Lightweight Linux tools for on-demand performance monitoring during load testing?
I'm tasked with testing out ProxySQL on a couple of Tomcat test servers, comparing its performance and resource utilization with the current Apache DBCP connection pooling. I've got a rough load ...
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2
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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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228
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Load Testing CPU utilization that occurred while executing at the system level
Is there a way to load test CPU utilization at the kernel level?
Output for sar
09:00:01 AM CPU %usr %nice %sys %iowait %steal %irq %soft %guest %gnice %idle
...
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worker_connections are not enough while have idle workers
I try to increase number of concurrent connections my server can handle.
$uname -a
Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.36-1+deb8u2 (2016-10-19) x86_64 GNU/Linux
$ulimit -Sn
65536
$ulimit ...
CommunityBot
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1
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423
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Linux server not allowing more than 2048 concurrent connections
I tried to do load test on MQTT from my MACOS, and was able to successfully achieve more than 12k connections till my bandwidth got exhausted.
I tried to do the same test on GCP machine and it gave me ...
- 121
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1
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171
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How can I isolate resources from a VM in VMware-Esxi to do load testing? [closed]
We have some web services running on a VM in VMWare-ESXi. We would like to see how the system behaves under certain amount of users. How can we configure the VM to provide accurate results without ...
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570
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How do I load test my http server on azure without getting IP banned automatically
I have an Ubuntu Server VM running on Microsoft Azure and I need to do some custom load testing. I've written a Python script that makes the necessary requests. The issue is that I know Azure will ...
- 561
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1
answer
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"Too many open files" Apache error even with increased ulimit and sysctl
I'm load testing an Amazon Linux EC2 instance running Apache (event MPM) and PHP-FPM using Locust. When I run my load test with 200 users (~28 requests per second), everything is fine. When I boost ...
CommunityBot
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2
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1
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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 "http://...
CommunityBot
- 1
1
vote
0
answers
52
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Sever User Capacity for 3 hours
The non-profit I work for is planning to host an online virtual tel-a-thon later this month.
At MAX, we plan to have 1200 people access our landing page at the same time to watch the livestream event.
...
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1
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794
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Nginx socket reverse proxy got 503 responses on concurrent requests
I am using Nginx as a reverse proxy for my PHP base WebSocket application and I try to load test the WebSocket server with Nginx reverse proxy. And I got 503 errors when concurrent users reach around ...
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760
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Mirror the live HTTP requests on another server from tail'ed apache access log to confirm it can handle the load
I have an apache HTTP server, which is in production use. I have installed another server, which should do the same as this server, but I would like to do some simple load testing. The apache http ...
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64
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What is this kind of continuous traffic generation against production called?
Traffic to our service is not entirely predictable. To help keep the service slightly over-provisioned and to provide advance warning of any degradation resulting from an increase in traffic, we ...
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0
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How to improve performance of Nginx for high PHP processing load?
I wonder how I could improve the performance of my server?
It is configured with Ubuntu 18.04 (LTS), 4 GB RAM, 100 GB SSD, 2 CPU, with Nginx 1.14.0 and PHP 7.2-fpm to handle running and serving a site ...
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9
answers
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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) ...
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701
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How can I variably stress test a server with Ubuntu?
I need to stress test a group of servers but is there a way to stress test a normal Ubuntu instance that doesn't just whack the CPU percentage up to 100%. Something that holds the CPU at 60% for ...
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How can I ensure that server can handle the load of new users to email marketing tool?
My situation is that I have just taken over a web team who host all of their clients websites using a server provided by Clook
The websites have a functionality where the client's customers can sign ...
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How to fix the error "SSLHandshakeException" when load testing Google Cloud Load balancer with an HTTPS?
When I perform a load testing to my website over HTTPS, I received multiples errors related with SSL Handshake when I simulate a high amount of concurrent users (>500 / sec).
Here are the errors that ...
google-cloud-platform
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1
answer
56
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How many people can a normal laptop server serve? [closed]
I'm just trying to play around with my laptop by hosting a small WordPress blog on that. I wonder how many people it can serve at once.
About the network, I've tested on Speedtest.net and got this ...
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2
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354
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How Do I Analyse Results of Load Testing to Determine Hardware Requirements
When running load tests for an application server, the average results are as follows for 1.25 concurrent users.
I calculated 1.25 concurrent users by taking a peak hour of visitors (5 visitors) for ...
- 561
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0
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55
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Configurable Stateful Traffic Generator Advice
I need a traffic generator tool which I should be able to configure followings;
Number of Packets
Number of Sessions
Number of TCP, UDP packets
Average number of packets in a session
Average packet ...
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1
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240
views
Can a load stress test (for example with Loader.io) cause a Denial of Service?
I want to test the performance of my server using Loader.io service, but I'm worried about the impact.
From what I understand the site will load stress my server making multiple requests, what is the ...
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41
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Need to correlate ps and load average
Let's say that I have 4 CPUs. In that case, load average should not go beyond 4 for better performance, it means only 4 threads can be run at a time (i.e., only 4 should be in R status in ps output). ...
- 269
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186
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Things to consider about AWS EC2 instance types for horizontal scaling
I'm going to scale an application for 100,000 users. The application was hosted in NodeJS. I have created docker images for my application and also using AWS ALB etc. My application is small and my ...
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1
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89
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Soak test failing on AWS RDS MySQL
I have a MySQL database in AWS RDS. It is an r4.large machine with 16GB ram. I have been testing its load capacity and find out that upto 18 concurrent users, the app works fine. Then we decided to do ...
- 2,558
0
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1
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92
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Wordpress apache benchamrk CPU usage
I'm on a VPS, 4vCPU 4GB RAM.
During this apache benchmark test:
ab -k -n 10000 -c 3 -l URL
I get:
Server Load 3.393066 (4 CPUs)
Memory Used 35% (1,358,560 of 3,881,408)
Swap Used 23.7% (...
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1
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Not understanding metrics of k6
I have load tested my server with k6 and I have some doubts about the results I have obtained.
/\ |‾‾| /‾‾/ /‾/
/\ / \ | |_/ / / /
/ \/ \ | | / ...
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Testing Concurrent Users using Jmeter
If I have to load test an app for 40,000 users per hour with each user's average spent time of one minute then what should be my test approach?
Will running a test for 666 Threads/Users (40000/60=...
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JMETER: Which requests to load
The question is about load testing a web application, in order to find out server capacity (I should answer the question: For how many users using my web application, the server can handle the ...
- 99.6k
2
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1
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5k
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How to use "Set weight" in HAProxy
Hi I have configured an HAProxy server in haproxy.cfg to balance the traffic flow between two servers, say
server web1 10.10.10.10 weight 50
server web2 10.10.10.11 weight 50
For testing purpose we ...
CommunityBot
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0
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2k
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Nginx epoll_wait() issue under load test with Load Balancer
I'm using JMeter CLI to load tests our micro services (Nginx+PHP-FPM+Laravel).
Micro services are all under an AWS Application Load Balancer which performs a health-check.
For that micro service, ...
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4k
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Load Testing Scenario for upload/download file to/from sftp server using winscp client on Azure
We have Azure (Microsoft cloud), we have installed winscp to upload and download files to SFTP server but performance is too much low, it takes more than enough time to upload and download 50-100 MB ...
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Servers crash with 3000 concurrent clients - how to config it right? PHP & Apache
I've 4 web servers, 2 database servers (read & write), Redis and a load balancer. I'm using PHP 7.0 & Apache2 & MySQL 5.7, however when I do load tests with 3000 users which surf at the ...
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