In message <20100322233607.gb1...@garage.freebsd.pl>, Pawel Jakub Dawidek write s:
>A class is suppose to interact with other classes only via GEOM, so I >think it should be safe to choose g_up/g_down threads for each class >individually, for example: > > /dev/ad0s1a (DEV) > | > g_up_0 + g_down_0 > | > ad0s1a (BSD) > | > g_up_1 + g_down_1 > | > ad0s1 (MBR) > | > g_up_2 + g_down_2 > | > ad0 (DISK) Uhm, that way you get _more_ context switches than today, today g_down will typically push the requests all the way down through the stack without a context switch. (Similar for g_up) -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
