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Date:      Sun, 13 May 2007 16:03:46 -0700
From:      Alfred Perlstein <alfred@freebsd.org>
To:        Ivan Voras <ivoras@fer.hr>
Cc:        freebsd-arch@freebsd.org
Subject:   Re: HEADS DOWN
Message-ID:  <20070513230346.GD21795@elvis.mu.org>
In-Reply-To: <464798C2.8030307@fer.hr>
References:  <20070512153532.GQ21795@elvis.mu.org> <63984.1178992555@critter.freebsd.dk> <f25m78$ik$2@sea.gmane.org> <20070513215442.GZ21795@elvis.mu.org> <46478C9A.9050807@fer.hr> <20070513225031.GC21795@elvis.mu.org> <464798C2.8030307@fer.hr>

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* Ivan Voras <ivoras@fer.hr> [070513 16:02] wrote:
> Alfred Perlstein wrote:
> > * Ivan Voras <ivoras@fer.hr> [070513 15:12] wrote:
> 
> >> Even if it's forbidden by POSIX or other standards, FreeBSD isn't
> >> popular enough to be one of the systems that don't support it.
> > 
> > I don't know about that, for the longest time Linux's "fsync"
> > call was async because it was "faster", I'd not like to compete
> > on those terms.  Worse is not better.
> 
> Of course not, but I dragged out an example where the implementation
> could handle a situation, but chose not to (any that only in certain
> cases) in the name of standards compliance.  I consider this wrong
> because the "lenient" behaviour is a superset of required one, and in
> any case the choice shouldn't be made based on uid.
> 
> In short, "beware of arbitrary standards' compliance" :)

I agree, but I don't see a way to do this without pessimizing
malloc/free performance.  I should have a look at what glibc
does to see how it impacts them.



-- 
- Alfred Perlstein



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