Tracing allocators of virtual memory and main memory

Valdis.Kletnieks at vt.edu Valdis.Kletnieks at vt.edu
Wed Mar 11 21:54:53 EDT 2015


On Thu, 12 Mar 2015 07:09:32 +0530, SAHIL said:

> Yeah right, pidstat which read /proc gives me VSZ ans RSS but i need to
> backtrace when VSZ/RSS is high which indicates process is allocating memory
> which it is not even using.

Do you mean pages it isn't *currently* using, or has *never* used?

Also, note that VSZ refers to the virtual size, which may include
pages currently out on swap, while RSS refers to actually resident pages.

And then there's the other great bugaboo, shared pages that are mapped by more
than one process.

What exactly are you trying to do?
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