support IUnit of Allocation Rate

[Marcus Hirt]

Hi Xin Liu,

Fixing this properly is probably a bit bigger. We'd probably want to have a
compound unit and add support for compound units in a general way.

Kind regards,
Marcus

On Mon, Mar 28, 2022 at 8:37 AM Liu, Xin <xxinliu at amazon.com> wrote:

> Hi, Developers,
>
> I am new for the codebase of Java mission control. I would like to add
> allocation Rate in Summary page(JMC-7301).
>
> I manage to extend aggregators ALLOC_INSIDE_TLAB_SUM and
> ALLOC_OUTSIDE_TLAB_SUM. The duration is known from TlabPage::visibleRange.
>
> The biggest challenge is to align with the new unit. IUnit of Allocation
> Rate is B/s. I haven't found similar IUnit like that. Is there a way to
> derive B/s from Memory?
>
> To display the correct unit of allocation rate, I create a new
> LinearKindOfQuantity "memory bandwidth". The only difference of it from
> memory is that its atom unit is B/s.
>
> Here is my attempt. sorry it looks awful. Any suggest to make it more
> elegant?
>
>
> https://github.com/navyxliu/jmc/commit/b3cd19b1b6bb5cb93241b4dbb8086a6305fe4023#diff-d740b28fe16b17f85bf34790e5afc60eb0d2f39d7827f894184713430d74131bR793
>
>
> thanks,
> --lx
>
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