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From: Dan Carpenter <dan.carpenter-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Cc: gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
	devel-gWbeCf7V1WCQmaza687I9mD2FQJk+8+b@public.gmane.org,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org
Subject: Re: [PATCH v2 01/22] staging/rdma/hfi1: Fix regression in send performance
Date: Wed, 21 Oct 2015 16:18:06 +0300	[thread overview]
Message-ID: <20151021131530.GI7340@mwanda> (raw)
In-Reply-To: <1445307097-8244-2-git-send-email-ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>

On Mon, Oct 19, 2015 at 10:11:16PM -0400, ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org wrote:
> From: Mike Marciniszyn <mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> 
> This additional call is a regression from qib.  For small messages the progress
> routine always builds one and clears out the ahg state when the queue has gone
> to empty which is the predominant case for small messages.
> 
> Inline the routine to mitigate the call and move the routine to qp.h for scope
> reasons.
> 
> Reviewed-by: Dennis Dalessandro <dennis.dalessandro-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Mike Marciniszyn <mike.marciniszyn-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> Signed-off-by: Ira Weiny <ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
> ---

The whole point of this patch is to do:

> -	if (qp->s_sde)
> +	if (qp->s_sde && qp->s_ahgidx >= 0)

It was not at all clear from the changelog and it was difficult to tell
because we moved code around as well.

regards,
dan carpenter
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  parent reply	other threads:[~2015-10-21 13:18 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-10-20  2:11 [PATCH v2 00/22] staging/rdma/hfi1: Fix bugs and performance issues ira.weiny-ral2JQCrhuEAvxtiuMwx3w
     [not found] ` <1445307097-8244-1-git-send-email-ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-10-20  2:11   ` [PATCH v2 01/22] staging/rdma/hfi1: Fix regression in send performance ira.weiny-ral2JQCrhuEAvxtiuMwx3w
     [not found]     ` <1445307097-8244-2-git-send-email-ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-10-21 13:18       ` Dan Carpenter [this message]
2015-10-26  2:10         ` ira.weiny
2015-10-20  2:11   ` [PATCH v2 02/22] staging/rdma/hfi1: Fix code to reset ASIC CSRs on FLR ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 03/22] staging/rdma/hfi1: Extend the offline timeout ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 04/22] staging/rdma/hfi1: Prevent host software lock up ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 05/22] staging/rdma/hfi1: Remove QSFP_ENABLED from HFI capability mask ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 06/22] staging/rdma/hfi1: Add coalescing support for SDMA TX descriptors ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 07/22] staging/rdma/hfi1: Fix sparse error in sdma.h file ira.weiny-ral2JQCrhuEAvxtiuMwx3w
     [not found]     ` <1445307097-8244-8-git-send-email-ira.weiny-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2015-10-21 14:12       ` Dan Carpenter
2015-10-21 16:29         ` Weiny, Ira
2015-10-22 10:01           ` Dan Carpenter
2015-10-25  1:59             ` gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r
2015-10-20  2:11   ` [PATCH v2 08/22] staging/rdma/hfi1: close shared context security hole ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 09/22] staging/rdma/hfi1: Reset firmware instead of reloading Sbus ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 10/22] staging/rdma/hfi1: Add a schedule in send thread ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 11/22] staging/rdma/hfi1: Fix port bounce issues with 0.22 DC firmware ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 12/22] staging/rdma/hfi1: Prevent silent data corruption with user SDMA ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 13/22] staging/rdma/hfi1: Macro code clean up ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 14/22] staging/rdma/hfi1: Implement Expected Receive TID caching ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-22 10:41     ` Dan Carpenter
2015-10-22 23:18       ` ira.weiny
     [not found]         ` <20151022231819.GB4019-W4f6Xiosr+yv7QzWx2u06xL4W9x8LtSr@public.gmane.org>
2015-10-23  3:53           ` Dan Carpenter
2015-10-20  2:11   ` [PATCH v2 15/22] staging/rdma/hfi1: Allow tuning of SDMA interrupt rate ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-22 10:54     ` Dan Carpenter
2015-10-22 22:27       ` ira.weiny
2015-10-20  2:11   ` [PATCH v2 16/22] staging/rdma/hfi1: Add irqsaves in the packet processing path ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 17/22] staging/rdma/hfi1: Thread the receive interrupt ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 18/22] staging/rdma/hfi: modify workqueue for parallelism ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 19/22] staging/rdma/hfi1: Load SBus firmware once per ASIC ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 20/22] staging/rdma/hfi1: Add unit # to verbs txreq cache name ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 21/22] staging/rdma/hfi1: add additional rc traces ira.weiny-ral2JQCrhuEAvxtiuMwx3w
2015-10-20  2:11   ` [PATCH v2 22/22] staging/rdma/hfi1: Update driver version string to 0.9-294 ira.weiny-ral2JQCrhuEAvxtiuMwx3w

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