Re: [PATCH] oslat: Add command line option for bucket width

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On Tue, 2022-12-13 at 15:41 -0500, John Kacur wrote:


> One more thing that we just saw, if you run oslat without any options, 
> just the defaults you get 32 buckets with the highest one being 32us
> 
> But if you run
> oslat -W 500
> 
> You still get 32 buckets but since the width is half, then largest bucket
> is 32us
> 
> This increases the resolution of the buckets, but it puts all the overflow
> in the 16us buckets, wondering if we should double the number of buckets
> so that the largest one is still 32us ?
> 
> I realize you could do
> oslat -b 64  -W 500
> to achieve that, but perhaps the default is not good like this.

Sounds reasonable.

-Scott





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