taken from wine HQ: http://www.winehq.com/?issue=186#NetBSD mmap Improvements
"On NetBSD (upcoming 1.6.2, and 1.7/2.0-current), there is a new extension flag MAP_TRYFIXED that essentially simulates current Linux mmap behavior: try the mmap() hint first, without clobbering mapped pages, even if the hint falls within traditionally "protected" malloc heap space. If the fixed mapping fails, the block is still mapped at a relocated address, as if mmap were called with no flags set. With this patch, mmapping PE files on NetBSD becomes an order of magnitude faster, as the vfork()-and-mincore() silly walk is avoided altogether. I've implemented the patch as forward-looking, allowing other platforms to add MAP_TRYFIXED to gain the same benefit. (This mmap flag name does not appear to be used in any divergent fashion on any other platform, per my research when picking the flag's name.) " __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
