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Re: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs in flight

From Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups linux.kernel
Subject Re: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs in flight
Date 2016-11-14 16:20 +0100
Message-ID <sDrd7-eg-9@gated-at.bofh.it> (permalink)
References <sBZVD-8ak-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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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Re: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs in  flight Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-11-14 16:20 +0100
  Re: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs  in flight James Simmons <jsimmons@infradead.org> - 2016-11-14 18:00 +0100
    Re: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs in  flight Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-11-14 18:30 +0100
      Re: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs  in flight James Simmons <jsimmons@infradead.org> - 2016-11-14 18:30 +0100
        Re: [PATCH v4] staging: lustre: mdc: manage number of modify RPCs in  flight Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2016-11-15 11:10 +0100

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