"David E. Cross" <cro...@cs.rpi.edu> writes:

> Looking through the exception.s it appears that on entry to the
> kernel an MP lock is obtained...  I thought we had splX(); to
> protect concurancy in the kernel.

Can someone explain to me why is SYSCALL_LOCK necessary ? It certainly
seems to hurt system call performance on a MP machine.

Also, is there any data on lock contention in FreeBSD ? Is anyone
working on decomposing some of the giant locks ?

        -Arun


To Unsubscribe: send mail to majord...@freebsd.org
with "unsubscribe freebsd-hackers" in the body of the message

Reply via email to