octave memory

[John W. Eaton]

On 11-Feb-2009, Miroslaw Kwasniak wrote:

| Current kernels have an entry /proc/*/status:
| 
| $ grep Vm /proc/`pidof octave-3.0.1`/status
| VmPeak:   419416 kB <- max allocated
| VmSize:   321288 kB
| VmLck:         0 kB
| VmHWM:    106716 kB <- max used (HWM = High Water Mark)
| VmRSS:    105828 kB 
| VmData:   253276 kB
| VmStk:       312 kB
| VmExe:         4 kB
| VmLib:     47508 kB
| VmPTE:       288 kB
| 
| I assume VmHWM is a true max usage when not swapped.
| 
| Below the same process listed by top:
| 
|   PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
| 18177 mirek     39  19  399m 103m  24m S  1.6  6.8  32:49.40 octave-3.0.1

So why isn't this information returned by the getrusage library
function?  I don't think Octave (and every other program that might
want this info) should have its own code for getting this info from
/proc (which doesn't seem portable anyway).  I thought that's what the
getrusage library function was for...

jwe