Author: Antonio Cuni <anto.c...@gmail.com> Branch: extradoc Changeset: r3741:61764a7842bd Date: 2011-06-19 18:42 +0200 http://bitbucket.org/pypy/extradoc/changeset/61764a7842bd/
Log: more slides diff --git a/talk/ep2011/training/src/count.py b/talk/ep2011/training/src/count.py new file mode 100644 --- /dev/null +++ b/talk/ep2011/training/src/count.py @@ -0,0 +1,23 @@ +import sys +import time + +def count_mult_of_5(N): + mult = 0 + not_mult = 0 + for i in range(N): + if i % 5 == 0: + mult += 1 + else: + not_mult += 1 + return mult, not_mult + +def main(): + N = int(sys.argv[1]) + start = time.clock() + count = count_mult_of_5(N) + end = time.clock() + print 'count: ', count + print 'time:', end-start, 'secs' + +if __name__ == '__main__': + main() diff --git a/talk/ep2011/training/talk.rst b/talk/ep2011/training/talk.rst --- a/talk/ep2011/training/talk.rst +++ b/talk/ep2011/training/talk.rst @@ -25,6 +25,23 @@ * That's it! + - (modulo details) + +Challenge +--------- + +* ``html_fibo.py`` + +* HTML list of fibonacci numbers + +* (the most complicate ever) + +* run it on CPython + +* run it on PyPy + +* fix it! + Refcounting vs generational GC (1) ---------------------------------- @@ -81,12 +98,6 @@ * ``finally`` inside generators -Challenge ---------- - -- Find the bug! - -XXX write me :-( How the JIT works @@ -98,11 +109,15 @@ PYPYLOG -------- +|small| + * ``PYPYLOG=categories:logfile pypy program.py`` +|end_small| + * categories: - - gc + - gc-minor, gc-major - jit-log-noopt, jit-log-opt @@ -110,12 +125,48 @@ - jit-backend-counts -* ``PYPYLOG=jit-log-opt:log.pypylog pypy foo.py`` -XXX: write foo.py +Inspecting the JIT log +----------------------- + +|scriptsize| +|example<| |scriptsize| ``count.py`` |end_scriptsize| |>| + +.. sourcecode:: python + + def count_mult_of_5(N): + mult = 0 + not_mult = 0 + for i in range(N): + if i % 5 == 0: + mult += 1 + else: + not_mult += 1 + return mult, not_mult + +|end_example| +|end_scriptsize| + +|small| + +* ``PYPYLOG=jit-log-opt:mylog pypy count.py 2000`` + +* ``PYPYLOG=jit-log-opt:mylog pypy count.py 10000`` + +|end_small| The jitviewer ------------- -- ``jitviewer.py log.pypylog`` +|scriptsize| + +* ``PYPYLOG=jit-log-opt,jit-backend-counts:mylog pypy count.py 2000`` + +* ``PYPYLOG=jit-log-opt,jit-backend-counts:mylog pypy count.py 10000`` + +* ``jitviewer.py log.pypylog`` + +* Look at the (missing) bridge! + +|end_scriptsize| _______________________________________________ pypy-commit mailing list pypy-commit@python.org http://mail.python.org/mailman/listinfo/pypy-commit
