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Message-ID: <20140208165732.GB22359@glanzmann.de> Date: Sat, 8 Feb 2014 17:57:32 +0100 From: Thomas Glanzmann <thomas@...nzmann.de> To: Eric Dumazet <eric.dumazet@...il.com> Cc: John Ogness <john.ogness@...utronix.de>, Eric Dumazet <edumazet@...gle.com>, "David S. Miller" <davem@...emloft.net>, "Nicholas A. Bellinger" <nab@...ux-iscsi.org>, target-devel <target-devel@...r.kernel.org>, Linux Network Development <netdev@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org> Subject: Re: REGRESSION f54b311142a92ea2e42598e347b84e1655caf8e3 tcp auto corking slows down iSCSI file system creation by factor of 70 [WAS: 4 TB VMFS creation takes 15 minutes vs 26 seconds] Hello Eric, > Note : We did some patches in the MSG_MORE logic for sendpage(), but > in your case I do not think its related > (git grep -n MSG_SENDPAGE_NOTLAST ) if you are curious thank you for the pointer. The iSCSI target code actually uses sendpage whenever it can. Cheers, Thomas -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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