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SubjectRe: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs in flight
On Thu, Nov 10, 2016 at 10:51:13AM -0500, James Simmons wrote:
> From: Gregoire Pichon <gregoire.pichon@bull.net>
>
> This patch is the main client part of a new feature that supports
> multiple modify metadata RPCs in parallel. Its goal is to improve
> metadata operations performance of a single client, while maintening
> the consistency of MDT reply reconstruction and MDT recovery
> mechanisms.
>
> It allows to manage the number of modify RPCs in flight within
> the client obd structure and to assign a virtual index (the tag) to
> each modify RPC to help server side cleaning of reply data.
>
> The mdc component uses this feature to send multiple modify RPCs
> in parallel.

Is this a new feature? Why should we take this now and not just wait
until the code is out of staging?

thanks,

greg k-h

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