🚀 go-pugleaf

In article <408nqk$hjf@aimnet1.aimnet.com>,
Yu-Ping Cheng <ycheng@advansys.com> wrote:
>Most operating systems like UNIX will allocate all unused memory for cache.
>Hence, sometimes the system will 4M+ of cache. Now, if you have 1M of cache
>on your controller, you have ZERO chance of finding data in the controller
>after missing the data in the OS.

I wonder if this ZERO chance is actually true, as far as I understand it,
sone of the caching controllers have pretty elaborate caching schemes
implemented on an onboard CPU, I suppose you assume that they only
implement a 'most recently accessed' caching scheme wich would justify
your ZERO change statement.

Any comments whether this is true, and perhaps any numbers to show how
efficient a disk controller cache is during 'normal' linux work???

>Y.P. Cheng,   ycheng@advansys.com
>"We will be successful, because we won't accept failure."