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When I monitor my computer's memory usage in Resource Manager, I see that I constantly get between 60 and 100 hard faults.

Is this normal?

Or is that hard fault graph ideally supposed to be flat at 0?

I run Windows 7 and I have 4GB RAM.

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I see that I constantly get between 60 and 100 hard faults. Do you mean spikes between 60 and 100 or is the graph between 60 and 100 all the time? –  Dennis Jul 26 '12 at 12:41

2 Answers 2

up vote 5 down vote accepted

I suppose that it can be normal considering the amount of RAM you have.

The more RAM you have, the fewer hard faults you should see.

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Thanks Pieter :) So more RAM sounds like a good idea? Think Hard faults is the deciding factor? –  willem Jul 26 '12 at 12:29
    
More memory is a good idea. What you might be seeing is programs starting up which is causing you to see spikes in your graph. –  PieterG Jul 26 '12 at 12:37
2  
I figured out what was going wrong. 60-100 HF/s was abnormal. Some stray SoapUI java processes were running and was absolutely chewing my memory. HF/s now averages between 0 and 5. MUUUUCH better. –  willem Jul 27 '12 at 8:04
    
Probably need a slightly more nuanced answer -- if you're trying to do a lot with a little RAM, certainly you might have a ton of hard faults, but as willem notes, that "normal" isn't "optimal". I'm going to guess that if you're at 100 faults/sec hours after booting, you need more memory -- or you need to stop trying to do what you're doing on that box. –  ruffin Nov 7 '12 at 13:57

On my 2009 laptop with 3GB of RAM there are usually 0-20 hard faults per/sec while playing a game, processing a video, etc. It could be that certain kinds of RAM like ECC or certain brand qualities.

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