In practice, I haven't yet proven that any of my devices actually do benefit from a max GB/cdb greater than 0.000065536 while an fs is mounted ...
You mean, 64 KByte/request? I'm curious what the relevant number is for IDE or SATA... and how disk and page caching affect it.
Things like MKFS (and badblocks) certainly like to issue much bigger requests.
If we make that easy for me to prove, then we will have created a volunteer to work towards making the whitelisting more automagic.
Assuming max_sectors is changeable through sysfs, the experiment would be just to measure elapsed time while doing various common tasks. There are lots of benchmarks available.
- Dave
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