Re: Combine more operation within one system call: to do it, or not to do it?

From: Peter Wemm (peter_at_wemm.org)
Date: 09/20/05

  • Next message: Francisco Reyes: "Re: High load average mail server 5.3-RELEASE" 
    To: freebsd-arch@freebsd.org
Date: Mon, 19 Sep 2005 19:34:23 -0700

    On Monday 19 September 2005 02:42 am, Peter Jeremy wrote:
    > On Mon, 2005-Sep-19 11:37:22 +0800, Xin LI wrote:
    > >It seems that Microsoft has recently revised several of their APIs.
    >
    > I think this is a regular occurence as part of their ongoing efforts
    > to minimise backward and forward compatibility.
    >
    > > One example is their ConnectEx(), as found in documentation [1].
    >
    > Does this represent a measurable improvement in a real-world
    > situation?

    The other consideration is that our syscalls are generally pretty quick
    on most of our platforms. We don't normally context switch for a
    syscall - well, we save and restore registers, but that isn't too bad
    compared to the i386 tss and ldt etc switches for process context
    switches. 

    -- 
Peter Wemm - peter@wemm.org; peter@FreeBSD.org; peter@yahoo-inc.com
"All of this is for nothing if we don't go to the stars" - JMS/B5
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  • Next message: Francisco Reyes: "Re: High load average mail server 5.3-RELEASE"