Re: [armedbear-devel] Lazy allocation of LispStackFrames

On 8/19/13 12:05 AM, Erik Huelsmann wrote:

[…]

The difference is too big to attribute solely to a different jvm version or other memory settings.

Thanks!

[… Dmitry Nadezhin contributes:]

    LispStackFrame object are allocated on every
    LispThread.execute(...) .
    However, they are seldom (to inspect stack trace).
    This patch delays allocation of LispStackFrame objects until
    they are requested.

    Raw information about stack frames is stored in stack.
    Stack is an Object[] array ( more precisely a list of 8 MB
    Object[] arrays ).

[…]

Committed with a few (mostly cosmetic changes) in [r14579][1].

@Dmitry: Thanks for the substantial patch of the stack abstraction! It makes it quite clear how to proceed with transcribing local variable information, which is something that has always bugged me about our SLIME sophistication.

[1]: http://lisp.not.org/trac/armedbear/changeset/14579