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From: Yuval Shaia <yuval.shaia-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
To: Yanjun Zhu <yanjun.zhu-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
Cc: monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org,
	dledford-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	jgg-uk2M96/98Pc@public.gmane.org,
	linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCHv2 1/1] IB/rxe: remove unnecessary skb_clone
Date: Wed, 14 Feb 2018 12:36:30 +0200	[thread overview]
Message-ID: <20180214103630.GB4282@yuvallap> (raw)
In-Reply-To: <5779a11b-d0f2-3231-a63f-009b1f080fb8-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>

> > >   	}
> > > -	skb_copy = skb_clone(skb, GFP_ATOMIC);
> > > -	if (skb_copy)
> > > -		rxe_add_ref(qp); /* for the new SKB */
> > Are you sure we don't need this?
> From my stress tests and performance tests, it will get better performance
> to remove skb_clone.

My concern is only with the above ref count.

> And there is no memory leak.  The whole soft RoCE can work well.
> So I think removing this function is a good choice.
> 
> Zhu Yanjun
> > 
--
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  parent reply	other threads:[~2018-02-14 10:36 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-05  8:19 [PATCH 1/1] IB/rxe: remove unnecessary skb_clone in xmit Zhu Yanjun
     [not found] ` <1515140391-24752-1-git-send-email-yanjun.zhu-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2018-02-13  7:59   ` [PATCHv2 1/1] IB/rxe: remove unnecessary skb_clone Zhu Yanjun
     [not found]     ` <1518508786-3204-1-git-send-email-yanjun.zhu-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2018-02-13 11:21       ` Yuval Shaia
2018-02-14 10:30         ` Yanjun Zhu
     [not found]           ` <5779a11b-d0f2-3231-a63f-009b1f080fb8-QHcLZuEGTsvQT0dZR+AlfA@public.gmane.org>
2018-02-14 10:36             ` Yuval Shaia [this message]
2018-02-17  0:48               ` Yanjun Zhu
2018-02-18  8:12               ` Yonatan Cohen
2018-02-14 10:36         ` [PATCHv3 " Zhu Yanjun

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