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List:       packet-writing
Subject:    Dynamic read-speed setting
From:       Johnathan Hicks <thetech () folkwolf ! NET>
Date:       2002-05-10 3:20:10
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Would it be possible to dynamically set the read speed depending on the type
of reads that are to be done? For example when doing long reads (reading a
"large" number of blocks) pump the read speed up to full drive capability.
When doing things that have short R/W cycles like writing a bunch of small
files, reduce the read speed to the write speed or close to the write speed.
Maybe even a step in the middle too. I know that the current 1.5:1 read:write
ratio is a sort of compromise between read speed and spindle spinup/spindown
time, but I am curious as to the feasibility of doing this.

--John

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