Why is my IIS hosted site so slow on first load?

Why is my IIS hosted site so slow on first load?

An IIS or ASP.NET hang can cause your website to have slow page loads, timeouts, or 503 Service Unavailable errors. Hangs can be caused by blocked ASP.NET threads, bad configuration, or request queueing.

How do I speed up my website in IIS?

Apply IIS configuration options to improve IIS performance

1. Log only essential information or completely disable IIS logging.
2. Disable IIS ASP debugging in production environments.
3. Tune the value of the ASP Threads Per Processor Limit property.
4. Tune the value of the ASP Queue Length property.

Why is my asp net web application so slow?

There can be numerous reasons why . NET applications can be slow. These include incorrect memory sizing, GC pauses, code-level errors, excessive logging of exceptions, high usage of synchronized blocks, IIS server bottlenecks, and so on.

What is application initialization in IIS?

IIS Application Initialization allows website administrators to configure a web application to be pre-loaded as soon as the worker process starts, before the first request arrives. By pre-loading the application, the worker process is able to reduce the time it takes to respond to the first request.

How do I allocate more RAM to IIS?

You can increase this amount by opening the IIS manager (start->run->inetmgr), expanding the server node on the left pane, clicking on “Application Pools”, right clicking on the application pool running your application, selecting “Advanced Settings”, and changing the Private Memory Limit and Virtual Memory Limit in …

How do I limit my CPU usage on IIS?

IIS 8.5:

1. Open IIS Manager.
2. Expand the local server and click Application Pools.
3. Find the application pool you wish to limit and right click on it.
4. Click Advanced Settings.
5. Under the CPU section, set “Limit” to the amount of CPU you wish to be the maximum.
6. Set Limit Action to Throttle.
7. Click OK to apply.

How can I speed up my asp net web application?

Here are a few tips to improve the performance of your ASP.Net application.

1. Viewstate.
2. Avoid Session and Application Variables.
3. Use Caching.
4. Effectively use CSS and Script files.
5. Images sizes.
6. CSS based layout.
7. Avoid Round trips.
8. Validate using JavaScript.

How can I improve my .NET Web application performance?

10 tips that can improve the performance of . Net web applications

1. Avoid recursive functions and nested loops.
2. Avoid string concatenation in loops.
3. Do not forget to release resources.
4. Avoid instantiations inside loops.
5. If possible, avoid throwing exceptions.
6. Use caching to improve performance.

How many requests per second can IIS handle?

By default IIS 8.5 can handle 5000 concurrent requests as per MaxConcurrentRequestsPerCPU settings in aspnet. config.

How much RAM does IIS use?

A healthy IIS Server will consume approximately 300 – 600 MB, maybe 700 MB RAM when busy. When it uses more than 700 MB RAM, it’s telling you that: You have a lot of concurrent web users. The resources loaded on the web console are intensive.

Does IIS use multiple cores?

IIS will by default take advantage of a multi-core CPU. [If you want to set processor affinity, you need to explicitly configure this.]

How do you improve application performance?

How to Improve Application Performance

1. 5 Tips to Improve Application Performance.
2. Tip 1: Monitor all transactions for all users.
3. Tip 2: Monitor what you don’t control.
4. Tip 3: Understand the end user experience.
5. Tip 4: Incorporate APM into your change management processes.
6. Tip 5: Shift left with regards to APM.

What is caching in asp net?

Caching enables you to store data in memory for rapid access. When the data is accessed again, applications can get the data from the cache instead of retrieving it from the original source. This can improve performance and scalability.