[Info-vax] How do I assign a disk to a CPU?

[Stephen Hoffman]

On 2020-10-17 09:26:33 +0000, Richard Brodie said:

> On Saturday, 17 October 2020 at 04:47:44 UTC+1, Edgar Ulloa wrote:
> 
>> I really thought that using another cpu would have a better performance 
>> on the disk that has more io.
> 
> It might. It's just that levelling out the interrupt load between CPUs 
> doesn't really help until the primary is maxed out servicing I/O.

A fast HDD does ~150 to ~200 IOPS.

A recent SSD does ~100,000, and some models variously more.

Sometimes much more.

There can be activity clogging the primary.

But that's probably not (strictly) HDD interrupt activity.


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