From: Tristan <9p-st@imu.li>
To: 9fans@9fans.net
Subject: Re: [9fans] usb slowness
Date: Wed, 7 Mar 2012 00:50:37 -0500 [thread overview]
Message-ID: <2579b9.87e726c6.np4k.mx@tumtum.plumbweb.net> (raw)
In-Reply-To: <2579b9.4d6b93e5.B75p.mx@tumtum.plumbweb.net>
a little reading later.
the usb mass storage bulk only spec stipulates that only one request may
be active at a time.
wince.
so, bigger buffer? yup, 32k reads double the speed again. 64k reads
aren't quite right, something clips it's tail. now i'm up to ~11 MB/s.
except that it crashes the pc and olpc kernels. kw does fine though (for
now!). changing devmnt seem unlikely to be very safe without checking
on every fileserver in case it now happily assumes 8k (plus headers) is
enough for anything.
anybody messed with devmnt's Msgsize successfully?
enjoy,
tristan
--
All original matter is hereby placed immediately under the public domain.
next prev parent reply other threads:[~2012-03-07 5:50 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-04 1:56 Tristan
2012-03-05 15:46 ` erik quanstrom
2012-03-05 16:05 ` Richard Miller
2012-03-05 16:14 ` erik quanstrom
2012-03-05 16:20 ` Richard Miller
2012-03-06 13:19 ` Tristan
2012-03-06 15:36 ` Tristan
2012-03-06 16:10 ` Richard Miller
2012-03-06 18:55 ` erik quanstrom
2012-03-06 22:22 ` Tristan
2012-03-07 5:50 ` Tristan [this message]
2012-03-07 5:53 ` Tristan
2012-03-07 9:31 ` Charles Forsyth
2012-03-10 3:13 ` [9fans] donehead changed before ack Tristan
2012-03-10 12:33 ` erik quanstrom
2012-03-10 15:14 ` Tristan
2012-03-07 15:27 ` [9fans] usb slowness Richard Miller
2012-03-05 15:56 ` Richard Miller
2012-03-06 0:01 ` Tristan
2012-03-06 10:39 ` Richard Miller
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