Re: [Sbcl-help] --script question

[Nikodemus S. <nik...@ra...>]

On 5 April 2012 18:28, Eugene Tyurin <eu...@ty...> wrote:

> Is it possible to increase heap while using --script option?

Yes and no.

Strictly speaking, you can combine --dynamic-space-size with --script,
but on most operating systems shebang lines can only use a single
argument, so you can't do so in an actual #! script...

Some workarounds:

* Build SBCL with a bigger default dynamic space. (See INSTALL for details.)

* Save an SBCL executable with a bigger dynamic space:

    sbcl --dynamic-space-size 4Gb --no-userinit --no-sysinit

    (save-lisp-and-die "sbcl-big" :executable t :save-runtime-options t)

* Use trampoline script:

  sbcl4gb:

  #!/bin/sh
  exec sbcl --dynamic-space-size 4Gb $@

  Your script:

  $!/bin/sbcl4gb --script
  ...

> Recently my SBCL scripts started getting "Heap exhausted, game over" errors.

This is probably due to shrinking of the default dynamic space in last
November: the old default spaces were so big that it was relatively
easy to have a rogue SBCL process exceeding the physical memory and
have the whole system slow down due thrashing, or have the OOM killer
hit.

Cheers,

 -- Nikodemus