From: Erik W. <ome...@us...> - 2000-11-29 10:05:49
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CVSROOT: /cvsroot/gstreamer Module name: gstreamer Changes by: omegahacker 00/11/29 02:05:48 Modified files: gst : cothreads.c Log message: Rearranged cothread_switch a bit to move all the code for error conditions to the end, using goto's to get there. This has the presumed advantage of consolidating all the normally run code into one chunk, reducing jumps (and the associated penalties in any modern processor) and limiting cache- line usage. It may be instructive to look at the generated assembly for this revision and the previous, to see if gcc is smart enough to do this for us anyway. If you want to turn off some of the checks (they are all checks for NULL pointers, if you're curious) for a speed gain, disable the #define of COTHREAD_PARANOID at the top. |