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Date:      Thu, 7 Mar 2002 00:51:06 -0800
From:      Alfred Perlstein <bright@mu.org>
To:        Dimitar Peikov <mitko@rila.bg>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: Swapping performance
Message-ID:  <20020307085106.GB26621@elvis.mu.org>
In-Reply-To: <20020307104518.0f73740b.mitko@rila.bg>
References:  <20020307104518.0f73740b.mitko@rila.bg>

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* Dimitar Peikov <mitko@rila.bg> [020307 00:45] wrote:
> I start some performance tests on -stable and on SuSE 7.1 / 2.4.17. I
> don't comment about 'bzero' performance, but when RAM is over, Linux
> is much faster. I have no idea what is the algorithm of swapping but it seems that the granularity of swapping pieces is the key or the importance of swapping memory blocks of certain task. Ooo I forgot to say that the both machines have the same hardware, IBM 300PL, 256 RAM and no other tasks running. I had to run these tests to choose the fastest platform for building our software indexes, which requires a lot of math and memory operations.
> 
> --- with bzero ---
> Linux$ time ./malloc_test

Could you explain what "malloc_test" actually does and/or share the
code?

-- 
-Alfred Perlstein [alfred@freebsd.org]
'Instead of asking why a piece of software is using "1970s technology,"
 start asking why software is ignoring 30 years of accumulated wisdom.'
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