Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756649AbZFILU3 (ORCPT ); Tue, 9 Jun 2009 07:20:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754973AbZFILUQ (ORCPT ); Tue, 9 Jun 2009 07:20:16 -0400 Received: from khc.piap.pl ([195.187.100.11]:57000 "EHLO khc.piap.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754222AbZFILUP (ORCPT ); Tue, 9 Jun 2009 07:20:15 -0400 To: Michael Tokarev Cc: Eric Dumazet , Linux-kernel , netdev Subject: Re: [Security, resend] Instant crash with rtl8169 and large packets References: <4A2D1147.8020101@msgid.tls.msk.ru> <4A2D1FE4.5030100@gmail.com> <4A2D25F6.9080300@msgid.tls.msk.ru> <4A2D2906.6090002@gmail.com> <4A2D301D.9040301@msgid.tls.msk.ru> <4A2D3568.6010901@gmail.com> <4A2D3BC6.3040904@msgid.tls.msk.ru> <4A2D4AA7.6020204@gmail.com> <4A2D6D0C.6060206@msgid.tls.msk.ru> <4A2D7FFE.9070701@cosmosbay.com> <4A2D825B.6090409@msgid.tls.msk.ru> From: Krzysztof Halasa Date: Tue, 09 Jun 2009 13:20:14 +0200 In-Reply-To: <4A2D825B.6090409@msgid.tls.msk.ru> (Michael Tokarev's message of "Tue\, 09 Jun 2009 01\:27\:55 +0400") Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 729 Lines: 16 Michael Tokarev writes: > Well, the performance is quite good -- 935Mb/sec according to iperf > for TCP. With UDP I got 1.05Gb/sec, but CPU usage is 100% during > all test time (for TCP test the CPU is in use for less than 5%). BTW you may want to try pktgen for TX bandwidth tests (a kernel module). In "clone" mode a slow IXP425 (ARM XScale) 533 MHz + Intel's 82541xx E1000 chip are able to transmit 1500-byte packets at full gigabit speed. -- Krzysztof Halasa -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/