Date: Sun, 11 Oct 2009 17:07:08 -0400 From: Mike Tancsa <mike@sentex.net> To: net.help@m2k.com.tw, "freebsd-performance" <freebsd-performance@freebsd.org> Subject: Re: Migrate large amount of small files Message-ID: <200910112106.n9BL6p7G074295@lava.sentex.ca> In-Reply-To: <1255189612.42461.net.help@m2k.com.tw> References: <1255189612.42461.net.help@m2k.com.tw>
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At 11:46 AM 10/10/2009, Ckcheng wrote:
>Hi all,
>Currently, I have a directory with over 5M small files (1~32K). Now,
>I want to transfer this directory to another machine and found
>that it's extremely slow and painful process. I tried the following
>method:
It might help if you mount all -onoatime as well as bump up
vfs.ufs.dirhash_maxmem to 4x the default size
---Mike
>1. rsync
>2. tar via ssh
>3. tar via nc
>(all take hours and hours to finish)
>
>None of them is able to give me a reasonable migration time. So, I'm
>here for asking help. Any suggestion is extremely welcomed. Thank you.
>
>Btw, here is brief information of my server. (both machines are the same)
>
>OS: FreeBSD 6.4-Stable 64Bit
>CPU: 2 x Xeon L5420 2.50GHz
>RAM: 2 x 2G ECC DDR2-667 (full buffered)
>DISK: Seagate Barracuda ES 16MB (SATA 300)
>Network: 1Gbps (Broadcom BCM5708)
>Filesystem: UFS2
>
>Regards,
>_______________________________________________
>freebsd-performance@freebsd.org mailing list
>http://lists.freebsd.org/mailman/listinfo/freebsd-performance
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--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Sentex Communications, mike@sentex.net
Providing Internet since 1994 www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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