From: John Floren <john@jfloren.net>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Help with two small shared file servers
Date: Wed, 17 Aug 2011 22:48:26 -0700 [thread overview]
Message-ID: <CAL4LZygoKQZoTvof4F_fBQhxqsQZb2r+FR_nkgf=YbU94WvoBQ@mail.gmail.com> (raw)
In-Reply-To: <c1b4d83fe61d09d96e7d4c20453abb3d@brasstown.quanstro.net>
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On Aug 17, 2011 10:40 PM, "erik quanstrom" <quanstro@quanstro.net> wrote:
> > slower than transferring via HTTP. When I tested 9P vs. HTTP over
> > connections with 25 ms latency (50ms RTT), I saw a 4x slowdown versus
> > HTTP. Even at 15 ms RTT, transfers took twice as long.
>
> did you do testing at regular lan latencies? what i see on my networks
> is usually <= 30µs.
>
> - erik
>
I induced latencies similar to those found on the Internet. My tests at LAN
speeds (500us in my sub-optimal setup) had 9P at essentially the same
transfer rate as HTTP. My work was motivated by the observation that
transferring files to and from sources is just deathly slow, and that while
fcp does a good job helping that, it is just a patch covering a deeper
issue.
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next prev parent reply other threads:[~2011-08-18 5:48 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-17 10:09 Aram Hăvărneanu
2011-08-17 14:11 ` Anthony Sorace
2011-08-17 14:32 ` John Floren
2011-08-17 15:39 ` erik quanstrom
[not found] ` <CAL4LZyiEk35Kfq_wezUaEvJWsYX3ONeordrD7sQjFr+45fQiWg@mail.gmail.c>
2011-08-18 5:34 ` erik quanstrom
2011-08-18 5:48 ` John Floren [this message]
[not found] ` <CAL4LZygoKQZoTvof4F_fBQhxqsQZb2r+FR_nkgf=YbU94WvoBQ@mail.gmail.c>
2011-08-18 13:26 ` erik quanstrom
2011-08-18 14:21 ` Lucio De Re
2011-08-19 8:15 ` cinap_lenrek
2011-08-17 21:00 ` Bakul Shah
2011-08-17 21:19 ` John Floren
2011-08-17 21:22 ` Skip Tavakkolian
2011-08-18 5:29 ` erik quanstrom
2011-08-18 5:47 ` Tristan Plumb
2011-08-18 6:25 ` Bakul Shah
2011-08-30 21:40 ` Ethan Grammatikidis
[not found] <CAEAzY3_Vx8WW1Oumt0t1_Ay6LtpTFFonpwMD+=0DYCM-yxXaeA@mail.gmail.c>
2011-08-17 15:42 ` erik quanstrom
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