Date: Mon, 11 Jun 2012 08:28:49 -0600 (MDT) From: Warren Block <wblock@wonkity.com> To: Robert Huff <roberthuff@rcn.com> Cc: questions@freebsd.org Subject: Re: speed of "dump" Message-ID: <alpine.BSF.2.00.1206110827304.82724@wonkity.com> In-Reply-To: <20437.57631.776197.982243@jerusalem.litteratus.org> References: <201206110559.q5B5x0Vu096317@jerusalem.litteratus.org> <20437.57631.776197.982243@jerusalem.litteratus.org>
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On Mon, 11 Jun 2012, Robert Huff wrote: > > Another thread, which I seem to have lost, was talking about > dump and sizing its cache. > Per my promise, appended is the log of this morning's level 0 dump, > using C=32. THe system is -CURRENT from March, using AMD Phemon II > x4/3ghz and SATA 3gbit drives (one internal, one external.). > > DUMP: finished in 1746 seconds, throughput 19568 KBytes/sec Are you using -b64 ? That can make a serious throughput improvement over smaller values.
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