On Mon, Oct 27, 2008 at 11:59 AM, seph <[EMAIL PROTECTED]> wrote: > Hi all, I've started looking at my opensolaris machines, trying to > understand they're memory use. I'm getting a lot of numbers, but not a > lot of explanation about what the numbers mean. Maybe someone here can > shed some light on it? > > I've got a pretty basic database server. Running opensolaris nevada > b96, and the postgres 8.3 included in that. Disk is all zfs, and the > data is stored on an external raid. 8gigs ram, 2gigs of disk swap. > > The myriad of memory use reporting tools confuse me a bit. I don't > understand why my kernel is using so much ram, or what the > difference between RAM Disk and Swap are. Or why I have so little free > memory. >
free memory is a relative thing these days given that many OSes will use it up as cache. Check this site out: http://www.solarisinternals.com/wiki/index.php/Solaris_Internals_and_Performance_FAQ Also, the book ( http://www.amazon.com/dp/0131482092?tag=solarisintern-20&camp=14573&creative=327641&linkCode=as1&creativeASIN=0131482092&adid=1V58E2ZE1GWADTEEHFME&;) has about 100 pages covering memory.
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