Date: Thu, 1 May 1997 17:26:29 +0800 (WST) From: Adrian Chadd <adrian@obiwan.psinet.net.au> To: hackers@freebsd.org Subject: IDE IO blocks? Message-ID: <Pine.BSF.3.95q.970501172058.514B-100000@obiwan.psinet.net.au>
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Hi. I'm running -current built as of about a week or two ago, and I'm fiddling with some audio applications that read data off my 1.2gb IDE HDD. However I've noticed that whenever there is any other hard drive activity the system seems to be blocking on it (giving this nice crackling, doing something like a find . in / kinda shows this up nicely :). I first thought it might be pausing cause its not reading-ahead (and so other disk accesses would cause it to wait a little bit, giving the crackling), but when playing the same file twice (the file being cached I assume) it still crackles. System - P133, 48mb RAM, so its not lack of CPU / RAM. :) Each file is about 4-8 mb in size (mpeg layer 3 encoded for those interested). Am I right? Completely wrong? I can't afford SCSI just yet. Thanks, -- Adrian Chadd | UNIX, MS-DOS and Windows ... <adrian@psinet.net.au> | (also known as the Good, the bad and the | ugly..)
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