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Re: Inefficient ia64 system call implementation in glibc
- From: Andreas Schwab <schwab at suse dot de>
- To: "Jim Hull" <jim dot hull at hp dot com>
- Cc: "'GNU C Library'" <libc-alpha at sources dot redhat dot com>,"'linux ia64 kernel'" <linux-ia64 at vger dot kernel dot org>
- Date: Sat, 20 Sep 2003 15:01:26 +0200
- Subject: Re: Inefficient ia64 system call implementation in glibc
- References: <00f401c37f06$4af075f0$f463f40f@jh733133>
"Jim Hull" <jim.hull@hp.com> writes:
> But my real issue with the performance of this code is not with
> sign-extend or the scheduling these instructions, it's with the break
> instruction. I may be mistaken, but hasn't it been many months since
> David Mosberger implemented all the kernel infrastructure needed to
> support syscalls using the epc instruction?
It's only implemented in 2.6 so far.
Andreas.
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Andreas Schwab, SuSE Labs, schwab@suse.de
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