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Message-ID: <504223.55411.qm@web32613.mail.mud.yahoo.com> Date: Thu, 30 Aug 2007 03:26:22 -0700 (PDT) From: Martin Knoblauch <spamtrap@...bisoft.de> To: Robert Hancock <hancockr@...w.ca>, Jens Axboe <jens.axboe@...cle.com> Cc: Martin Knoblauch <spamtrap@...bisoft.de>, linux-kernel@...r.kernel.org, Peter zijlstra <a.p.zijlstra@...llo.nl>, mingo@...hat.com Subject: Re: Understanding I/O behaviour - next try --- Robert Hancock <hancockr@...w.ca> wrote: > > I saw a bulletin from HP recently that sugggested disabling the > write-back cache on some Smart Array controllers as a workaround > because > it reduced performance in applications that did large bulk writes. > Presumably they are planning on releasing some updated firmware that > fixes this eventually.. > > -- > Robert Hancock Saskatoon, SK, Canada > To email, remove "nospam" from hancockr@...pamshaw.ca > Home Page: http://www.roberthancock.com/ > Robert, just checked it out. At least with the "6i", you do not want to disable the WBC :-) Performance really goes down the toilet for all cases. Do you still have a pointer to that bulletin? Cheers Martin ------------------------------------------------------ Martin Knoblauch email: k n o b i AT knobisoft DOT de www: http://www.knobisoft.de - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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