Suggestions on Avoiding syscall Overhead

Howard Su howard0su at
Sun Apr 22 23:39:59 UTC 2007

I'd like to give some feature requests on this. I think it will not
increase your work load so much however it will benifit the FreeBSD a

We can have 3 type of pages mapped into one process's address map.
1. System wide global readonly page which will help on these syscalls:
    help on importing sysenter as syscall entry point!!

2. Per process Readonly page. (change will still through standard syscall)
    help on the syscalls:
    getuid, geteuid, getpid,getgid, getegid, getpgrp,

3. As you planed, Read+Write Page


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