`top` process memory usage: SIZE vs RES
jesse at wingnet.net
Fri Sep 12 07:00:22 PDT 2003
Dan Nelson wrote:
> In the last episode (Sep 11), Jesse Guardiani said:
>> 1.) Where is my Free memory going? I can't account for it
>> in the SIZE and RES columns of the various processes.
>> These are relatively constant.
> Disk cache.
I thought it might be something like that. My large test
messages are being written to disk over and over and over
as the message travels down the pipline. Makes a great case
for installing a RAM disk. :)
>> 2.) What, exactly, is RES? `man top` describes it as this:
>> "RES is the current amount of resident memory", but does
>> that mean RES is included in SIZE? Or does that mean that
>> RES should be counted in addition to SIZE?
> RES the amount of SIZE that it currently in core
OK. To clarify, you mean core kernel memory here?
If so, how is that significant? Why should I care?
In other words, why would I ever want to know that?
Jesse Guardiani, Systems Administrator
WingNET Internet Services,
P.O. Box 2605 // Cleveland, TN 37320-2605
423-559-LINK (v) 423-559-5145 (f)
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