Help me collect less garbage!

[Rewbs]

Hi,

My C# app is running much slower than expected (about 3x slower than Java equivalent).

Profiling with the AQTime profiler has revealed that the CLR is collected garbage from heaps Gen0, Gen1 and Gen2 every few second! I assume that this is what is slowing it down.

How can I remedy this? I imagine that increasing the heap size would be a solution, but I don't know how to do this.

Any help would be geat.
Best regards,
Robin.

 

[chiph]

It goes against good software design principles, but you could rewrite the functions that get called all the time to use fewer local variables.

Chip H.

 

[Rewbs]

Isn't there a way I could just convince the CLR to allocate more memory to the heap? This would surely help as less GC would be required.

Cheers,
Robin

 

[neilkonitzer]

If you're taking a performance hit by the garbage collector, then you may want to consider manually releasing your objects rather than relying on the garbage collector to take care of it for you. This would save yourself a lot of the overhead that is used by the garbage collector when it searches for releasable objects. Also, you'd save yourself the performance hit when the garbage collector actually performs the release process.

Here's an excellent resource that would be worth several minutes of your time.

http://msdn.microsoft.com/msdnmag/issues/1100/GCI/GCI.asp

Neil Konitzer
Freisoft

http://www.freisoft.com