[Haskell-cafe] GHC 7.0.1 developer challenges

Mathieu Boespflug mboes at tweag.net
Mon Dec 13 16:17:43 CET 2010

Hi John,

Why don't you use ulimit for this job?

$ ulimit -m 32M; ./cpsa



On Fri, Dec 10, 2010 at 12:51 PM, John D. Ramsdell <ramsdell0 at gmail.com> wrote:
> Please excuse the grammar errors in my last post.  I was very tired.
> The name of the package that supplies the free function on Linux is
> procps, not procpc.  It's hosted on SourceForge.  To compile my
> program, do the following:
> $ mv memfree.txt memfree.l
> $ make LDLIBS=-ll memfree
> John
> On Thu, Dec 9, 2010 at 11:36 PM, John D. Ramsdell <ramsdell0 at gmail.com> wrote:
>> I found out how to compute a good memory limit for the GHC runtime on
>> Linux systems.  One opens /proc/meminfo, and sums the free memory with
>> the reclaimable memory.  The memory allocated to file buffers and the
>> disk cache are reclaimable, and can be added to the memory of a
>> growing GHC process.  Once you get beyond that memory size, thrashing
>> is in your futures.
>> I have enclosed a short lex program that computes the limit.  It's
>> basically what is done by the procpc program called free, except that
>> I printed only the number of interest to a GHC runtime.
>> John
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