King David's Rock
Since December 2016
Within 60 seconds of using Prefix I discovered a nested loop that was performing over 100 DB calls that I was completely unaware of. This was after 3 different senior devs had already attempted to optimize the exact code in question for performance. I was instantly sold on the product.
Quick to discover problem areas in running code. Free. Quick to install. New features being added rapidly.
Sometimes it's a little confusing when the prefix icon appears in the system toolbar (on windows) if prefix is really running and taking up a lot of resources or if it's just in a sort-of idle mode.
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Recommendations to others considering Stackify Prefix
If you are doing absolutely any kind of performance troubleshooting (pretty much every .net dev, ever) you should check this out. There's no reason not to and huge upside. Takes 5 minutes to download and get running and you can stop banging your head against a wall immediately.