Linux memory fragmentation

Posted by Raghu on Server Fault See other posts from Server Fault or by Raghu
Published on 2010-04-16T09:03:04Z Indexed on 2010/04/17 4:44 UTC
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linux-kernel

Hi all,

Is there a way to detect memory fragmentation on linux ? This is because on some long running servers I have noticed performance degradation and only after I restart process I see better performance. I noticed it more when using linux huge page support -- are huge pages in linux more prone to fragmentation ?

I have looked at /proc/buddyinfo in particular. I want to know whether there are any better ways(not just CLI commands per se, any program or theoretical background would do) to look at it.

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