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Message-ID: <544A029D.3080508@huawei.com> Date: Fri, 24 Oct 2014 15:41:17 +0800 From: "Zhangjie (HZ)" <zhangjie14@...wei.com> To: <kvm@...r.kernel.org>, Jason Wang <jasowang@...hat.com>, "Michael S. Tsirkin" <mst@...hat.com>, <linux-kernel@...r.kernel.org>, <netdev@...r.kernel.org>, <liuyongan@...wei.com>, <qinchuanyu@...wei.com> Subject: [QA-TCP] How to send tcp small packages immediately? Hi, I use netperf to test the performance of small tcp package, with TCP_NODELAY set : netperf -H 129.9.7.164 -l 100 -- -m 512 -D Among the packages I got by tcpdump, there is not only small packages, also lost of big ones (skb->len=65160). IP 129.9.7.186.60840 > 129.9.7.164.34607: tcp 65160 IP 129.9.7.164.34607 > 129.9.7.186.60840: tcp 0 IP 129.9.7.164.34607 > 129.9.7.186.60840: tcp 0 IP 129.9.7.164.34607 > 129.9.7.186.60840: tcp 0 IP 129.9.7.186.60840 > 129.9.7.164.34607: tcp 65160 IP 129.9.7.164.34607 > 129.9.7.186.60840: tcp 0 IP 129.9.7.164.34607 > 129.9.7.186.60840: tcp 0 IP 129.9.7.164.34607 > 129.9.7.186.60840: tcp 0 IP 129.9.7.186.60840 > 129.9.7.164.34607: tcp 80 IP 129.9.7.186.60840 > 129.9.7.164.34607: tcp 512 IP 129.9.7.186.60840 > 129.9.7.164.34607: tcp 512 SO, how to test small tcp packages? Including TCP_NODELAY, What else should be set? Thanks! -- Best Wishes! Zhang Jie -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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