On Sun, Sep 5, 2010 at 10:12 PM, Joshua Judson Rosen <roz...@geekspace.com> wrote: >> X reports a resident size of 40 MB, although how much of >> that (if any) might actually be video card RAM I dunno. > > I bet none of it is video-card RAM; a significant (not necessarily > majority, but significant) portion of the RAM `used by X', though, > is shared libraries that are also used by other processes--and those > are basically `gratis' since you'd be using them regardless.
I'm approaching the limits of my understanding now, but: I note that several of the shared libraries you list are specific to the X server, and thus aren't shared by any other process. I've never used memstat before, but the manual page states that it reports "virtual memory". I was looking at the "RSS" (resident segment size) column of ps. Virtual size can include things which aren't main RAM. It would appear that memstat breaks out memory-mapped files, but how does it treat things like pages swapped to disk? (I wouldn't expect RSS to include RAM mapped from the video card, but I didn't know that for sure, hence my qualification earlier.) -- Ben _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
