On Sun, Jan 1, 2012 at 11:13 AM, Laurence Tratt <lau...@tratt.net> wrote:
> On Sun, Jan 01, 2012 at 07:02:14PM +0200, Maciej Fijalkowski wrote: > > >> Here's an example (hopefully a decent one!): > >> > >> http://pastebin.com/51QpPD7C > > so for example here, tracing has taken 0.8s out of 2.5 total (a lot) + > 0.2s > > for the backend. If you can post some example I can probably look at > > traces. > > > > For example - is the loop iteration from above a good one? > > I don't know if it's a good one or not :) This is a real program executing > under the Converge JIT - the Converge compiler. If you have a checkout of > the > Converge VM and have built the VM with a JIT, you can recreate this by > doing: > > $ cd compiler > $ PYPYLOG=jit-summary:stats ../vm/converge convergec -o > Compiler/Code_Gen.cvb Compiler/Code_Gen.cv > > > Also, there were 16 loops aborted because trace run out for too long. > That > > might mean a lot of things. > > I'm going to assume this is because (at least as I've done things so far) > the > VM is effectively inlining all calls to RPython-level functions (in other > words, if the bytecode calls a builtin function, the latter is inlined). > It's > not clear to me whether this is entirely desireable - sometimes it might be > sensible, but often not. How does PyPy handle this? Does it have a blanket > "don't look inside builtin functions" for example? > > > Laurie > -- > Personal > http://tratt.net/laurie/ > The Converge programming language > http://convergepl.org/ > https://github.com/ltratt http://twitter.com/laurencetratt > _______________________________________________ > pypy-dev mailing list > pypy-dev@python.org > http://mail.python.org/mailman/listinfo/pypy-dev > Take a look at pypy/module/pypyjit/policy.py it shows the JITPolicy for which functions can be inlined. Alex -- "I disapprove of what you say, but I will defend to the death your right to say it." -- Evelyn Beatrice Hall (summarizing Voltaire) "The people's good is the highest law." -- Cicero
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