On Jul 26, 2005, at 9:59 AM, Gustave T. Stresen-Reuter wrote:
One way to improve the speed of htdig on mac os x is to take advantage of the AltiVec processor. I don't know anything about how to do this, but in reading some documentation I ran across a document says that "Existing C code written for serial execution" can take advantage of the AltiVec processor.
I'm not sure there's really a lot that can happen here. Neal can contradict me, but the last time I did benchmarking/profiling on the code, most of the slowdown during indexing was in the database code, and a large part of that was I/O bound.
Furthermore, AltiVec really shines doing floating-point processing, e.g. matrix multiplication. There's very, very little of that in ht:// Dig.
I think for future development (i.e., 4.0) multi-threading the indexing would probably help *MUCH* more than adding AltiVec or SSE processor-specific optimizations which mostly help with floating- point ops.
And of course, moving to a different database backend would probably help immensely too.
Cheers, -Geoff ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click _______________________________________________ ht://Dig Developer mailing list: htdig-dev@lists.sourceforge.net List information (subscribe/unsubscribe, etc.) https://lists.sourceforge.net/lists/listinfo/htdig-dev
