[nodejs] Question about cpu usage

On Wed, May 16, 2012 at 8:21 AM, marcucio wrote:

I have a question about cpu usage, I noticed that my server cpu usage
increases all day as the server is being used but it never goes back down
until I restart the node process. I am wondering if there are any general
reasons why this would happen. See the screen shot below, the cpu keeps
rising until I restart the process then it immediately drops:


<https://lh3.googleusercontent.com/-Ad_6mJyUuQE/T7PFVsbhOjI/AAAAAAAAGK8/epVWZWZA0K4/s1600/Screen+Shot+2012-05-16+at+11.18.13+AM.png>


Would memory usage (or memory leak) cause a cpu rise like this?

Any responses would be appreciated, thanks

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On Wednesday, May 16, 2012 11:21:25 PM UTC+8, marcucio wrote:

I have a question about cpu usage, I noticed that my server cpu usage
increases all day as the server is being used but it never goes back down
until I restart the node process. I am wondering if there are any general
reasons why this would happen. See the screen shot below, the cpu keeps
rising until I restart the process then it immediately drops:


<https://lh3.googleusercontent.com/-Ad_6mJyUuQE/T7PFVsbhOjI/AAAAAAAAGK8/epVWZWZA0K4/s1600/Screen+Shot+2012-05-16+at+11.18.13+AM.png>


Would memory usage (or memory leak) cause a cpu rise like this?

Any responses would be appreciated, thanks

On Thursday, May 17, 2012 6:37:21 AM UTC-4, darcy wrote:

in my experiences, if there are memleaks, the gc will use more and more
cpu time as the memory usage raise.

On Thu, May 17, 2012 at 10:28 AM, marcucio wrote:

Thanks for the replies, I'm thinking it is GC too, because I do cache a
lot of data, and my app's code is not executing any more than when the cpu
is much lower.

I will try to expire my data cache quicker to see if this fixes the issue.

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