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Date:      Fri, 11 Oct 1996 02:26:18 +0900
From:      Hidetoshi Shimokawa <simokawa@sat.t.u-tokyo.ac.jp>
To:        henrich@crh.cl.msu.edu
Cc:        dfr@render.com, lite2@freebsd.org
Subject:   Re: Delayed write patch
Message-ID:  <10038.844968378@sat.t.u-tokyo.ac.jp>
In-Reply-To: Your message of "Thu, 10 Oct 1996 10:29:58 -0400 (EDT)"
References:  <199610101429.KAA00237@crh.cl.msu.edu>

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>I did more performance tests with the v2 UDP, as per usual all were not good.
>I did notice that the system was being locked out during the tests, but not
>solid, I.e. after a few seconds my other transactions (to different NFS hosts)
>would make it out and back.
>
>I then switched the TCP v3, this didnt help at first?  After about the third
>test everything starting running extremely well, however I do not believe the
>results.  After completing my tests I attempted to unmount the sun, no such
>luck "device busy".  It took a reboot (which reported "Unabl to unmount") to
>clear that up.
>
>Next test, after the clean boot.  CP the netscape binary to the partition, that
>worked fine.  However, when I then did an rm on the netscape binary, my system
>locked up dead solid.
>
>I think im going to back out those patches :)

Are you using NQNFS?
Did you try "sysctl -w vfs.nfs.dwrite=0" ?


>-Crh
>
>       Charles Henrich     Michigan State University     henrich@msu.edu
>
>                         http://pilot.msu.edu/~henrich

/\ Hidetoshi Shimokawa
\/  simokawa@sat.t.u-tokyo.ac.jp
PGP public key: finger -l simokawa@sat.t.u-tokyo.ac.jp



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