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From: Karel Zak <kzak@redhat.com>
To: Peter Cordes <peter@cordes.ca>
Cc: Aurelien LAJOIE <orel@melix.net>, util-linux@vger.kernel.org
Subject: Re: [PATCH v2] libuuid: improve uuid_unparse() performance
Date: Wed, 1 Apr 2020 12:05:56 +0200	[thread overview]
Message-ID: <20200401100556.ccc2p5mmtn7zqmxw@ws.net.home> (raw)
In-Reply-To: <20200401100005.tuamlrlrujfzr7yd@ws.net.home>

On Wed, Apr 01, 2020 at 12:00:09PM +0200, Karel Zak wrote:
> On Wed, Apr 01, 2020 at 06:34:06AM -0300, Peter Cordes wrote:
> > Or can we put the wrapper function in a .h so it can inline away?
> > That would bake the choice into applications that use libuuid, so you
> > couldn't change it just by rebuilding libuuid.  That's perhaps not
> > desirable; if applications wanted to have that choice baked in they
> > could have called the explicit upper or lower versions.
>  
>  Frankly, what we're trying to fix by the alias? It sounds like
>  premature optimization. The current solution works, maybe foo(bar())
>  is also optimized by compiler. I have doubts that use inline function 
>  in header or so makes a real sense.

BTW, would be better to make uuid_fmt() as inline function as we use
it in uuid_unparse_lower(), uuid_unparse_upper() and uuid_unparse()?

    Karel

-- 
 Karel Zak  <kzak@redhat.com>
 http://karelzak.blogspot.com


  reply	other threads:[~2020-04-01 10:06 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-26 14:38 [PATCH v2] libuuid: improve uuid_unparse() performance Aurelien LAJOIE
2020-03-31 13:30 ` Karel Zak
2020-04-01  8:31 ` Karel Zak
2020-04-01  9:34   ` Peter Cordes
2020-04-01 10:00     ` Karel Zak
2020-04-01 10:05       ` Karel Zak [this message]
2020-04-01 11:09         ` Peter Cordes

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