Recent Blog Posts
Fixing W3WP.exe memory leaks is easier than you think
Apr 5, 2022 by mvolo
Memory leaks can be causing poor website performance, and blowing out your cloud hosting costs.You can now easily reduce memory usage and fix memory leaks, check out our Diagnose w3wp.exe memory us...
Async await hangs in ASP.NET Core, MVC and WebAPI
Mar 8, 2022 by mvolo
Debugging async hangs in ASP.NET core, MVC and WebAPI apps can be extra hard!To help, we added async task support to LeanSentry hang diagnostics. Check out the Diagnose async hangs in ASP.NET Core,...
You may be massively overpaying for your CPUs
Feb 23, 2022 by mvolo
You could be throwing away 50-80% of your cloud instance CPU power, due to common .NET CPU overheads.Learn more about these and how to remove them to save on your cloud costs in our W3wp high CPU g...
New guide to IIS and asp.net hangs
Feb 8, 2022 by mvolo
To commemorate over 10 years of LeanSentry Hang diagnostics, we wrote an updated guide to resolving IIS and ASP.NET hangs.Get the step-by-step guide at Diagnose IIS website hangs.[Read more]
The master guide to proactive IIS monitoring
Jan 11, 2022 by mvolo
Tired of monitoring dozens of metrics that produce no actionable value, and then still struggling with website outages?After 10 years of solving IIS performance problems at LeanSentry, we've develo...
Why high w3wp CPU usage causes your website to choke
Dec 7, 2021 by mvolo
High CPU usage in the IIS worker process can cause poor IIS website performance ... even if the processor is not completely overloaded.This can lead to high CPU hangs, 503 queue full outages, and h...
Lower cloud costs 2x with this IIS application pool recycling strategy
Nov 17, 2021 by mvolo
Reduce your cloud hosting costs 2x or more with a measured memory-based recycling strategy.Check out our full guide to reduce IIS worker process memory usage with LeanSentry memory diagnostics.For...
10 precision commands to recycle IIS application pools
Nov 10, 2021 by mvolo
10 nifty commands I use to find and recycle specific IIS apppools, instead of hammering the server with an IISRESET.See the right way to recycle application pools at our Restarting IIS expert guide...
Optimizing the IIS thread pool
Sep 13, 2021 by mvolo
Tune the IIS thread pool to improve website RPS, and resolve 503 Queue Full errors.Check out the full guide at https://www.leansentry.com/guide/iis-aspnet-hangs/iis-thread-pool.[Read more]