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From: Enrico Weigelt <weigelt@metux.de>
To: linux kernel list <linux-kernel@vger.kernel.org>
Subject: Re: high latency NFS
Date: Thu, 31 Jul 2008 20:06:00 +0200	[thread overview]
Message-ID: <20080731180600.GA8732@nibiru.local> (raw)
In-Reply-To: <200807241311.31457.shuey@purdue.edu>

* Michael Shuey <shuey@purdue.edu> wrote:
> I'm currently toying with Linux's NFS, to see just how fast it can go in a 
> high-latency environment.  Right now, I'm simulating a 100ms delay between 
> client and server with netem (just 100ms on the outbound packets from the 
> client, rather than 50ms each way).  Oddly enough, I'm running into 
> performance problems. :-)

NFS is *very bad* for latent links.
Try 9p with an little metadata-caching proxy in the middle ;-P

cu
-- 
---------------------------------------------------------------------
 Enrico Weigelt    ==   metux IT service - http://www.metux.de/
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 Please visit the OpenSource QM Taskforce:
 	http://wiki.metux.de/public/OpenSource_QM_Taskforce
 Patches / Fixes for a lot dozens of packages in dozens of versions:
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      parent reply	other threads:[~2008-07-31 18:06 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-07-24 17:11 high latency NFS Michael Shuey
     [not found] ` <200807241311.31457.shuey-olO2ZdjDehc3uPMLIKxrzw@public.gmane.org>
2008-07-30 19:21   ` J. Bruce Fields
2008-07-30 19:21     ` J. Bruce Fields
2008-07-30 21:40     ` Shehjar Tikoo
2008-07-30 21:40       ` Shehjar Tikoo
2008-07-31  2:35       ` Michael Shuey
     [not found]         ` <200807302235.50068.shuey-olO2ZdjDehc3uPMLIKxrzw@public.gmane.org>
2008-07-31  3:15           ` J. Bruce Fields
2008-07-31  3:15             ` J. Bruce Fields
2008-07-31  7:03             ` Neil Brown
2008-07-31  7:03               ` Neil Brown
     [not found]               ` <18577.25513.494821.481623-wvvUuzkyo1EYVZTmpyfIwg@public.gmane.org>
2008-08-01  7:23                 ` Dave Chinner
2008-08-01  7:23                   ` Dave Chinner
2008-08-01 19:15                   ` J. Bruce Fields
2008-08-01 19:15                     ` J. Bruce Fields
2008-08-04  0:32                     ` Dave Chinner
2008-08-04  0:32                       ` Dave Chinner
2008-08-04  1:11                       ` J. Bruce Fields
2008-08-04  1:11                         ` J. Bruce Fields
2008-08-04  2:14                         ` Dave Chinner
2008-08-04  2:14                           ` Dave Chinner
2008-08-04  9:18                         ` Bernd Schubert
2008-08-04  9:18                           ` Bernd Schubert
     [not found]                           ` <200808041118.19743.bs-PKu+Ek1N2UGzQB+pC5nmwQ@public.gmane.org>
2008-08-04  9:25                             ` Greg Banks
2008-08-04  9:25                               ` Greg Banks
2008-08-04  1:29                       ` NeilBrown
2008-08-04  1:29                         ` NeilBrown
     [not found]                         ` <52873.192.168.1.70.1217813385.squirrel-eq65iwfR9nKIECXXMXunQA@public.gmane.org>
2008-08-04  6:42                           ` Greg Banks
2008-08-04  6:42                             ` Greg Banks
     [not found]                             ` <4896A4EE.9030706-cP1dWloDopni96+mSzHFpQC/G2K4zDHf@public.gmane.org>
2008-08-04 19:07                               ` J. Bruce Fields
2008-08-04 19:07                                 ` J. Bruce Fields
2008-08-05 10:51                                 ` Greg Banks
2008-08-05 10:51                                   ` Greg Banks
2008-08-01 19:23                   ` J. Bruce Fields
2008-08-01 19:23                     ` J. Bruce Fields
2008-08-04  0:38                     ` Dave Chinner
2008-08-04  0:38                       ` Dave Chinner
2008-08-04  8:04     ` Greg Banks
2008-08-04  8:04       ` Greg Banks
2008-07-31  0:07 ` Lee Revell
2008-07-31 18:06 ` Enrico Weigelt [this message]

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