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From: Hubertus Franke <frankeh@watson.ibm.com>
Reply-To: frankeh@watson.ibm.com
Organization: IBM Research
To: arjanv@redhat.com, Rusty Russell <rusty@rustcorp.com.au>
Subject: Re: furwocks: Fast Userspace Read/Write Locks
Date: Thu, 7 Mar 2002 10:33:32 -0500
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On Thursday 07 March 2002 07:50 am, Arjan van de Ven wrote:
> Rusty Russell wrote:
> > This is a userspace implementation of rwlocks on top of futexes.
>
> question: if rwlocks aren't actually slower in the fast path than
> futexes,
> would it make sense to only do the rw variant and in some userspace
> layer
> map "traditional" semaphores to write locks ?
> Saves half the implementation and testing....
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I m not in favor of that. The dominant lock will be mutexes.
-- 
-- Hubertus Franke  (frankeh@watson.ibm.com)
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