On Sat, 16 Jun 2007 21:53:06 -0700 Tim Kientzle <[EMAIL PROTECTED]> wrote:
> > 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've also seen a 3x speedup by using my reimplementation of pkg_add using my package management library, libpkg (http://libpkg.berlios.de). It is not production ready yet as if it fails partway through an installation it won't clean up and installed files. > 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. I ran a quick test on installing and removing a single package with both the cvs and my own version of pkg_delete. I got a small but significant speed improvement with my implementation. The difference was too small to be noticeable by a human though (from 0.11s to 0.07s). Andrew -- Andrew Turner http://fubar.geek.nz/blog/ _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
