From: "\"Zhou, Wenjian/周文剑\"" <zhouwj-fnst@cn.fujitsu.com>
To: kexec@lists.infradead.org
Subject: Re: [PATCH v1 0/5] makedumpfile: --split: assign fair I/O workloads in appropriate time
Date: Tue, 7 Oct 2014 10:49:25 +0800 [thread overview]
Message-ID: <543354B5.4030109@cn.fujitsu.com> (raw)
In-Reply-To: <1411974387-10839-1-git-send-email-zhouwj-fnst@cn.fujitsu.com>
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
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next prev parent reply other threads:[~2014-10-07 2:51 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-29 7:06 [PATCH v1 0/5] makedumpfile: --split: assign fair I/O workloads in appropriate time Zhou Wenjian
2014-09-29 7:06 ` [PATCH v1 1/5] makedumpfile: Add support for block Zhou Wenjian
2014-10-10 8:11 ` Atsushi Kumagai
2014-09-29 7:06 ` [PATCH v1 2/5] makedumpfile: Add tools for reading and writing from block table Zhou Wenjian
2014-09-29 7:06 ` [PATCH v1 3/5] makedumpfile: Add module of generating table Zhou Wenjian
2014-10-10 8:12 ` Atsushi Kumagai
2014-09-29 7:06 ` [PATCH v1 4/5] makedumpfile: Add module of calculating start_pfn and end_pfn in each dumpfile Zhou Wenjian
2014-09-29 7:06 ` [PATCH v1 5/5] makedumpfile: Add support for --block-size Zhou Wenjian
2014-10-10 8:11 ` Atsushi Kumagai
2014-10-07 2:49 ` "Zhou, Wenjian/周文剑" [this message]
2014-10-10 4:12 ` [PATCH v1 0/5] makedumpfile: --split: assign fair I/O workloads in appropriate time "Zhou, Wenjian/周文剑"
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