[Date Index] [Thread Index] [Author Index]
Re: Odd memory behavior, and uncontrollable memory growth
Hi, set the $HistoryLength=0; may help you. Regards Jens nafod40 wrote: > > Hola, > > We are writing code where semi-complicated functions get run thousands > of times in packages. when we do this, we are getting memory use growth > that eventually drives the system to virtual memory, and severe speed > penalties. > > I have been trying to gain an understanding of this process, and came up > with the following odd example that makes no sense to me. Can someone > explain? > > a=MemoryInUse; > (q=tempFunk;1); > d=MemoryInUse; > d-a > > The memory bumps up by 1080 bytes per iteration. It climbs, but slowly. > I figure that is justified by the In and Out storage. Now one small > change... > > a=MemoryInUse; > (q=tempFunk;); > d=MemoryInUse; > d-a > > Now the memory jumps by 80,000 bytes per iteration! All I did was remove > the "1" from within the parentheses. What's up with that? I tried this... > > a=MemoryInUse; > (q=tempFunk;); > q=1; > d=MemoryInUse; > d-a > > To force the clearing of 'q', still it jumps by leaps and bounds. Any > ideas why?