Klemens Hemm wrote:
> is there a way to permanently change the default heap and stack sizes
> for a compiled program, without doing all the time the +RTS -K.. -H.. > thing on the
>command line ?
There is a C-hook which is called after the defaults have been set, but
before they are actually used. Example (for -K1M -H20M):
#include "rtsdefs.h"
void defaultsHook (void) {
RTSflags.GcFlags.stksSize = 1000002 / sizeof(W_);
RTSflags.GcFlags.heapSize = 20000002 / sizeof(W_);
}
Using powers of two causes bad cache behaviour on direct-mapped caches,
so be careful. Compile the function above with your favourite C-compiler
and link it with your application.
For the curious people: Have a look at fptools/ghc/runtime/main/RtsFlags.lc
("Use the source, Luke!" :-)
[ AFAK, this is not in the info files. Probably this should be added. ]
--
Sven Panne Tel.: +49/89/2178-2235
LMU, Institut fuer Informatik FAX : +49/89/2178-2211
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