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cosmopolitan/tool/plinko
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Justine Tunney 69f4152f38 Always initialize thread local storage 
We had previously not enabled TLS in MODE=tiny in order to keep the
smallest example programs (e.g. life.com) just 16kb in size. But it
was error prone doing that, so now we just always enable it because
this change uses hacks to ensure it won't increase life.com's size.

This change also fixes a bug on NetBSD, where signal handlers would
break thread local storage if SA_SIGINFO was being used. This looks
like it might be a bug in NetBSD, but it's got a simple workaround.
2022-07-19 00:21:46 -07:00
..
lib Fix some plinko documentation 2022-06-10 03:28:24 -07:00
plinko.c Always initialize thread local storage 2022-07-19 00:21:46 -07:00
plinko.mk Make more fixes and improvements 2022-06-13 11:02:13 -07:00
README.txt Add LISP interpreter 2022-04-07 20:30:22 -07:00

README.txt 

DESCRIPTION

  plinko is a simple lisp interpreter that takes advantage of advanced
  operating system features irrespective of their practicality such as
  using the nsa instruction popcount for mark sweep garbage collection
  overcommit memory, segment registers, and other dirty hacks that the
  popular interpreters cannot do; this lets plinko gain a considerable
  performance edge while retaining an event greater edge in simplicity

  We hope you find these sources informative, eductional, and possibly
  useful too. Lisp source code, written in its dialect is included too
  under //tool/plinko/lib and unit tests which clarify their usage can
  be found in //test/tool/plinko.

BENCHMARK

  binary trees (n=21)

    - sbcl:     200 ms (native jit;  simulated arithmetic)
    - plinko:   400 ms (interpreted; simulated arithmetic)
    - python3:  800 ms (interpreted;    native arithmetic)
    - racket:  1200 ms (interpreted; simulated arithmetic)

AUTHOR

  Justine Alexandra Roberts Tunney <jtunney@gmail.com>

LICENSE

  ISC

SEE ALSO

  SectorLISP
  SectorLambda