Also, were the bottlenecks seen in pkg_delete and pkg_add, or does it appear to be distributed across the board?
The biggest time sink in pkg_add is writing each file to a temp dir then copying it to its final location. There are a couple of strategies for avoiding this (by writing the files directly to their final location), but it basically requires rewriting pkg_add from scratch. I prototyped this a long time ago and found about a 3x speedup. (Parts of that prototype eventually became libarchive.)
I haven't looked closely at pkg_delete, but I doubt there's much that can be done to speed it up; once you've examined the dependency information to determine what can be deleted, actually removing the files is a pretty straightforward operation. The two operations that people focus on performance issues have been index rebuilding (which requires inspecting every port in /usr/ports) and update (which requires inspecting every installed port). The modular Xorg is especially going to stress updates, since it greatly increases the number of ports on the average system. One useful tool: "truss" can include timing information that can give a lot of insight into where a program is really spending time. Tim Kientzle _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
