Nothing wrong with 100% CPU usage. It just means that the kernel was able to
soak the CPU with work ... which is good. Maxing out your performance on a RAM
disk at 75% CPU usage means your system has a problem somewhere.
As for performance though, I'd be interested in seeing the actual numbers from
the ramdisk test to check against my 10k RPM disk stats.
"Austad, Jay" wrote:
> I did some benchmarking using a standard 7200 RPM disk and a 128MB ramdisk.
> The machine was not using any swap, so there was no chance of the ramdisk
> accidentally making it to disk.
>
> In short, performance on it sucked. The throughput was about 10% less than
> IDE, but seeks/sec were 5-10 times more. However, the CPU was maxed at 100%
> during tests to the ramdisk.
