Date: Mon, 19 Sep 2005 19:34:23 -0700 From: Peter Wemm <peter@wemm.org> To: freebsd-arch@freebsd.org Cc: Peter Jeremy <PeterJeremy@optushome.com.au>, freebsd-performance@freebsd.org, Xin LI <delphij@frontfree.net> Subject: Re: Combine more operation within one system call: to do it, or not to do it? Message-ID: <200509191934.23991.peter@wemm.org> In-Reply-To: <20050919094234.GG40237@cirb503493.alcatel.com.au> References: <1127101042.788.30.camel@spirit> <20050919094234.GG40237@cirb503493.alcatel.com.au>
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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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