about pagein , pageout in linux

nagendrar · 08-12-2009, 05:47 AM

please tell about pagein,pageout.
How can i get these values in linux? Is there any command for this?

Please give the suggestions.

ThanQ,
Nagendra R

MensaWater · 08-12-2009, 07:40 AM

You can get it with "sar -B" if you've installed the sysstat package. If you're running collection then running "sar -B" will show you today's history. If you want to see what is happening now you can do something like "sar -B 5 5".

Type "man sar" for more information. If you don't have sar you can get it by installing the sysstat package.

csy33delight · 12-19-2009, 11:34 PM

I am running Debian on an NSLU2 which has very little RAM and using flash for virtual memory. vmstat shows 0 pagein/pageouts per second which is good. Is there anyway to show the number of pagein/pageouts per day? Since last boot?

csy33delight · 12-20-2009, 12:40 AM

I answered my own question: vmstat -s shows the number of pages swapped in and pages out since last boot.