Date: Fri, 10 Jun 2005 11:44:48 -0300 (EST) From: <scuba@centroin.com.br> To: Dmitry Mityugov <dmitry.mityugov@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: mismatch results with disk performance Message-ID: <Pine.BSI.4.33.0506101141590.11087-100000@hypselo.centroin.com.br> In-Reply-To: <b7052e1e0506092349275a3418@mail.gmail.com>
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Dmitry, =09Which is the chipset of your motherboard? =09I suspect it=B4s a problem with ICH5 drivers. =09Whith windowz OS they perform identical. - Marcelo Souza On Fri, 10 Jun 2005, Dmitry Mityugov wrote: |On 6/9/05, scuba@centroin.com.br <scuba@centroin.com.br> wrote: |> Dmitry, |> |> Both situations have the same result, an Slave IDE HDD on primar= y |> controller, or a master HDD on the 2nd IDE controler, works much more |> slow, testing with 'dd'. |> I couldn't see that with diskinfo. | |I can't reproduce this. On a dual Xeon server with 2 PATA Seagate |disks attached as masters to both IDE channels and a PATA CD-ROM as a |slave on the 1st channel, reading them with dd procuces this: | |%dd if=3D/dev/ad0 of=3D/dev/null bs=3D1m count=3D20 |20+0 records in |20+0 records out |20971520 bytes transferred in 0.378772 secs (55367171 bytes/secs) |%dd if=3D/dev/ad2 of=3D/dev/null bs=3D1m count=3D20 |20+0 records in |20+0 records out |20971520 bytes transferred in 0.364243 secs (57575625 bytes/secs) | |Please let me know if there is anything else I shall try to reproduce |the problem. | |-- |Dmitry | |"We live less by imagination than despite it" - Rockwell Kent, "N by E" |_______________________________________________ |freebsd-questions@freebsd.org mailing list |http://lists.freebsd.org/mailman/listinfo/freebsd-questions |To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.or= g" | - Marcelo
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