Hi, On 7/12/05, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote: > Andrew Morton wrote: > > OK, please let us know how it goes. > > It went very well. I could find no problems at all. > I've updated my script to use the new method, so please merge smaps :) > http://www.pixelbeat.org/scripts/ps_mem.py > > Usually the shared mem reported by /proc/$$/statm > is the same as summing all the shared values in in /proc/$$/smaps > but there can be large discrepancies.
Have you checked how the statm shared is calculated? I guess it does something like: shared = mm->rss - mm->anon_rss But in smaps output you can have anonymous area like: b6e0e000-b6e13000 rw-p Size: 20 KB Rss: 4 KB Shared_Clean: 0 KB Shared_Dirty: 4 KB Private_Clean: 0 KB Private_Dirty: 0 KB Look that it presents 4 KB of shared value in area considered anonymous. ANDREW: anon_rss is the rss for anonymous area, right? > In the real world you can see this with a newly started apache. > On my system statm reported that apache was using 35MB, > whereas smaps reported the correct amount of 11MB. How dou you know that 11MB is the correct shared value and the 35MB is the wrong value? BR, Mauricio Lin. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
