Скачать или смотреть API to expose verbs object counters to application

In this video from the 2018 OpenFabrics Workshop, Jason Gunthorpe from Mellanox presents: API to expose verbs object counters to application.

"In this talk we would like to present verbs API which allows a user-space application to define, read counters activity and statistics regarding IB resources they have allocated.
Until today, each application had to spend CPU cycles to accumulate the amount of data transfers. Now, an application that creates a QP can request HW assistance to count the amount of traffic it sent or received.

There are many IB spec counter events which the application is not even exposed to, like rnr-retry attempts. Through this new verbs counters API an application will be able to collect real time statistics and can even change its behavior due to value it reads from the different counters.

We will present application use cases, the new libibverbs API, and different objects that can be queried."


Learn more: https://www.openfabrics.org/index.php...

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