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Date:      Mon, 14 Jul 2014 21:23:22 +0200
From:      Joerg Sonnenberger <joerg@britannica.bec.de>
To:        svn-src-all@freebsd.org
Subject:   Re: svn commit: r268566 - head/usr.bin/users
Message-ID:  <20140714192322.GA23366@britannica.bec.de>
In-Reply-To: <20140712195452.N3279@besplex.bde.org>
References:  <201407120747.s6C7lpYE020200@svn.freebsd.org> <20140712195452.N3279@besplex.bde.org>

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On Sat, Jul 12, 2014 at 09:34:28PM +1000, Bruce Evans wrote:
> Run time:
> C++ sort() was twice as slow as qsort() for sorting 1 million dummy
> users in the allocation tests.  About 8 seconds instead of 4, except
> when compiled with -g -O0 it was 15 seconds instead of 4.

I find that claim strange and not reproducable. In my tests, std::sort
tends to be significant faster than qsort. Attached is a small test
program that for me is twice as fast for sorting integers...

Joerg



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