Maoni Stephens

@maoni0

loves working on dotnet GC and other perf stuff; avid zoo-goer; wannabe hiphop dancer. old blog devblogs.microsoft.com/dotnet/author/…

Redmond, WA

maoni0.medium.com

Joined April 2019

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7,987 Followers

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Maoni Stephens
@maoni0
Sep 8, 2020
A Thread - a guideline doc for memory performance analysis for #dotnet #dotnetcore For the past few weekends I've been working on a (long) document that aims to help you with finding efficient approaches to mem perf problems. github.com/Maoni0/mem-doc…
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Maoni Stephens
@maoni0
Sep 24, 2025
hi folks! it’s been quite a while since I had time to write a blog post. with the upcoming .NET 10 release, I’m finally sharing more details on DATAS and tuning tips you might find useful. check it out here:
Preparing for the .NET 10 GC
From maoni0.medium.com
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Maoni Stephens
@maoni0
Feb 15, 2024
recently we worked with a team that specified only the provider name in dotnet-trace without keywords/level. dotnet-trace will include ALL keywords on VERBOSE level. this can easily degrade perf. DotNETRuntime provider will also induce GCs (due to the GCHeapCollect keyword).
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Maoni Stephens
@maoni0
Feb 12, 2024
profiling tip - if you upgrade to a newer version of a product and observe perf regression, make sure to grab some perf traces before you revert (if you revert all usage and can't easily get traces later). without comparative traces the investigation will be much harder
Maoni Stephens
@maoni0
Feb 12, 2024
if you use PerfView, have you noticed the GCTriggeredStacks cmd arg? to see callstacks for induced GCs, use this lightweight commandline - PerfView /GCCollectOnly /GCTriggeredStacks /nogui collect (this is less verbose than what mem-doc currently shows)
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