From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from [59.151.112.132] (helo=heian.cn.fujitsu.com) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XbKsX-0000cd-O8 for kexec@lists.infradead.org; Tue, 07 Oct 2014 02:51:58 +0000 Received: from G08CNEXCHPEKD01.g08.fujitsu.local (localhost.localdomain [127.0.0.1]) by edo.cn.fujitsu.com (8.14.3/8.13.1) with ESMTP id s972pX4I025085 for ; Tue, 7 Oct 2014 10:51:33 +0800 Message-ID: <543354B5.4030109@cn.fujitsu.com> Date: Tue, 7 Oct 2014 10:49:25 +0800 From: =?UTF-8?B?Ilpob3UsIFdlbmppYW4v5ZGo5paH5YmRIg==?= MIME-Version: 1.0 Subject: Re: [PATCH v1 0/5] makedumpfile: --split: assign fair I/O workloads in appropriate time References: <1411974387-10839-1-git-send-email-zhouwj-fnst@cn.fujitsu.com> In-Reply-To: <1411974387-10839-1-git-send-email-zhouwj-fnst@cn.fujitsu.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "kexec" Errors-To: kexec-bounces+dwmw2=infradead.org@lists.infradead.org To: kexec@lists.infradead.org ping ... On 09/29/2014 03:06 PM, Zhou Wenjian wrote: > The issue is discussed at http://lists.infradead.org/pipermail/kexec/2014-March/011289.html > > This patch implements the idea of 2-pass algorhythm with smaller memory to manage block table. > Exactly the algorhythm is still 3-pass,but the time of second pass is much shorter. > The tables below show the performence with different size of cyclic-buffer and block. > The test is executed on the machine having 128G memory. > > the value is total time (including first pass and second pass). > the value in brackets is the time of second pass. > sec > cyclic-buffer 1 2 4 8 16 32 64 > block-size > 1M 4.74(0.00) 4.22(0.01) 3.94(0.01) 3.78(0.02) 3.71(0.03) 3.73(0.07) 3.74(0.10) > 2M 4.74(0.00) 4.19(0.00) 3.94(0.01) 3.80(0.03) 3.71(0.03) 3.72(0.07) 3.72(0.09) > 4M 4.73(0.00) 4.21(0.01) 3.95(0.01) 3.78(0.02) 3.70(0.02) 3.73(0.08) 3.73(0.10) > 8M 4.73(0.00) 4.19(0.00) 3.94(0.01) 3.83(0.02) 3.73(0.03) 3.72(0.07) 3.74(0.10) > 16M 4.74(0.01) 4.21(0.00) 3.94(0.01) 3.76(0.01) 3.73(0.03) 3.73(0.08) 3.74(0.10) > 32M 4.72(0.00) 4.20(0.02) 3.92(0.01) 3.77(0.02) 3.71(0.02) 3.70(0.06) 3.74(0.10) > 64M 4.74(0.01) 4.20(0.00) 3.95(0.01) 3.78(0.02) 3.70(0.02) 3.71(0.07) 3.72(0.09) > 128M 4.73(0.01) 4.20(0.00) 3.94(0.01) 3.78(0.02) 3.76(0.03) 3.72(0.08) 3.74(0.09) > 256M 4.75(0.02) 4.22(0.02) 3.96(0.03) 3.78(0.02) 3.70(0.03) 3.70(0.07) 3.74(0.11) > 512M 4.77(0.04) 4.21(0.03) 3.97(0.04) 3.79(0.03) 3.73(0.04) 3.75(0.09) 3.82(0.13) > 1G 4.82(0.09) 4.26(0.07) 4.00(0.08) 3.83(0.07) 3.76(0.08) 3.73(0.08) 3.76(0.12) > 2G 8.26(3.54) 7.34(3.14) 6.86(2.93) 6.56(2.80) 6.44(2.76) 6.45(2.79) 6.42(2.80) > > the performence of 3-pass algorhythm > origin 8.25(3.54) 7.26(3.11) 6.80(2.91) 6.52(2.80) 6.39(2.76) 6.40(2.78) 6.45(2.85) > > sec > cyclic-buffer 128 256 512 1024 2048 4096 8192 > block-size > 1M 3.83(0.21) 3.94(0.33) 4.16(0.54) 4.61(0.99) 7.03(3.41) 8.73(5.11) 8.69(5.08) > 2M 3.86(0.21) 3.92(0.32) 4.16(0.54) 4.64(0.98) 7.02(3.41) 8.71(5.09) 8.72(5.09) > 4M 3.82(0.21) 3.95(0.32) 4.18(0.55) 4.62(0.99) 7.05(3.44) 8.70(5.09) 8.68(5.07) > 8M 3.82(0.21) 3.95(0.33) 4.17(0.54) 4.58(0.97) 7.03(3.41) 8.79(5.16) 8.71(5.09) > 16M 3.83(0.21) 3.93(0.31) 4.15(0.54) 4.60(0.98) 7.06(3.43) 8.76(5.13) 8.73(5.10) > 32M 3.84(0.22) 3.93(0.32) 4.15(0.54) 4.61(0.98) 7.00(3.40) 8.69(5.08) 8.75(5.13) > 64M 3.84(0.21) 3.94(0.33) 4.15(0.54) 4.60(0.98) 7.04(3.42) 8.74(5.10) 8.80(5.16) > 128M 3.85(0.22) 3.97(0.33) 4.16(0.54) 4.60(0.98) 7.07(3.44) 8.68(5.07) 8.69(5.07) > 256M 3.84(0.21) 3.94(0.33) 4.16(0.55) 4.64(1.00) 7.02(3.41) 8.74(5.11) 8.73(5.11) > 512M 3.85(0.24) 3.97(0.34) 4.17(0.56) 4.61(0.99) 7.05(3.44) 8.73(5.11) 8.75(5.13) > 1G 3.85(0.22) 3.96(0.35) 4.18(0.56) 4.65(1.00) 7.06(3.44) 8.76(5.12) 8.72(5.11) > 2G 6.53(2.91) 6.86(3.25) 7.54(3.92) 8.95(5.31) 10.60(6.97) 14.08(10.47) 14.32(10.60) > > the performence of 3-pass algorhythm > origin 6.64(3.05) 6.81(3.24) 7.51(3.93) 8.86(5.30) 10.51(6.94) 13.92(10.36) 14.11(10.55) > > Zhou Wenjian (5): > Add support for block > Add tools for reading and writing from block table > Add module of generating table > Add module of calculating start_pfn and end_pfn in each dumpfile > Add support for --block-size > > makedumpfile.8 | 16 ++++ > makedumpfile.c | 245 ++++++++++++++++++++++++++++++++++++++++++++++++++++++- > makedumpfile.h | 15 ++++ > 3 files changed, 271 insertions(+), 5 deletions(-) > > _______________________________________________ > kexec mailing list > kexec@lists.infradead.org > http://lists.infradead.org/mailman/listinfo/kexec _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec