On Sat 07 May 2011 20:27, l...@gnu.org (Ludovic Courtès) writes: >> * libguile/vm-engine.c (vm_engine): Cache the scm_i_thread* instead of >> the dynstate, so we can use the thread for ticks. > > What effect does it have on performance? Registers are scarce on x86...
I did this because there were several million __tls_getaddr calls when compiling psyntax.scm, which presumably are more expensive than either a cached memory ref or a register. In any case it's not more local vars than before... But that's not your question. Answer: I'm pretty sure it's an improvement, but it would be good to see numbers :) Andy -- http://wingolog.org/
