memory usage in C# (.NET) app is very high, until I call System.GC.Collect()

I've written an app that spins a few threads each of which read several MB of memory. Each thread then con开发者_如何学Cnects to the Internet and uploads the data. this occurs thousands of times and each upload takes some time

I'm seeing a situation where (verified with windbg/sos and !dumpheap) that the Byte[] are not getting collected automatically, causing 100/150MB of memory to be reported in task manager

if I call System.GC.Collect() i'm seeing a huge drop in memory, a drop of over 100MB

I dont like calling System.GC.Collect() and my PC has tons of free memory. however if anyone looks at TaskManager they're going to be concerned, thinking my app is leaking horribly.

tips?

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The runtime is taking advantage of a large amount of free memory to reduce the impact of the garbage collector on the performance of your application. The "problem" here is a general lack of understanding (e.g. your users) that when a system has more memory, it's ok to use it (otherwise what's the point?).

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Problem is, some users do check the memory and cpu usage, and reports your application is consuming too much even when there is no problem with their performance. I think they do this to show their boss/girlfriend/fellows how much they know about computers.

A carefully placed CG.Collect in your app will probably reduce this human (not computer) problem. I think you should do it.