Adaptec 1542 Kernel tuning with 386/ix

Larry Snyder larry at nstar.uucp
Fri Jul 6 07:28:44 AEST 1990


pcg at cs.aber.ac.uk (Piercarlo Grandi) writes:


>But you don't teel us the crucial details -- did you read from the raw
>device, the block device, or from the filesystem? In the latter two
>cases, how did you defeat the read-aheading. or ensured it was used, and
>in the last ase, did you unmount/remount the filesystem before each read
>to be sure to defeat the caching?

File system and cache was cleared in all the benchmarks - I posted
the source code for others to see exactly what was going on.


-- 
      Larry Snyder, Northern Star Communications, Notre Dame, IN USA 
            uucp: iuvax!ndmath!nstar!larry  -or-  larry at nstar
 Public Access Unix Site (219) 289-3745 / lots of files & free PEP feeds!



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