Mine was (probably unnecessarily) more complicated than that. :( It was fun though to watch the logical disk IO decrease and the physical drive IO increase until they met in the middle of the chart. ;) On 9/15/05, Kevin Closson <kevinc@xxxxxxxxxxxxx> wrote: > >>> > >>>It isn't too difficult to write a simulation that will > >>>render the cache useless. > > actually quite easy. create a file that is 100 fold > larger than cache and do completely random 4KB transfers. > > smoked > > -- Jared Still Certifiable Oracle DBA and Part Time Perl Evangelist 11+ years of trying to appear to know what I'm doing. -- //www.freelists.org/webpage/oracle-l