gstripe performance scaling with many disks

[Ivan Voras]

Ivan Voras wrote:

> I'll take a shot at this: Since maximum kernel reads are still limited
> to 128 KB/s, by adding more drives you're making individual requests
> shorter. I.e. with one drive, it gets 128 KB requests, with two, each
> gets 64 KB, with 16, each gets 8 KB. So network & kernel latency becomes
> visible.

Btw. if I'm right, you should be able to observe this with gstat and/or
iostat. If you don't see it, then it's possible I'm wrong :)


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