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From: Tom Zanussi <zanussi@us.ibm.com>
To: Gianni Tedesco <gianni@scaramanga.co.uk>
Cc: Tom Zanussi <zanussi@us.ibm.com>,
	linux-kernel@vger.kernel.org, karim@opersys.com,
	bob@watson.ibm.com
Subject: Re: [RFC][PATCH 0/5] relayfs
Date: Tue, 15 Jul 2003 11:01:28 -0500	[thread overview]
Message-ID: <16148.9560.602996.872584@gargle.gargle.HOWL> (raw)
In-Reply-To: <1058282847.375.3.camel@sherbert>

Gianni Tedesco writes:
 > On Tue, 2003-07-15 at 16:15, Tom Zanussi wrote:
 > > The following 5 patches implement relayfs, adding a dynamic channel
 > > resizing capability to the previously posted version.
 > > 
 > > relayfs is a filesystem designed to provide an efficient mechanism for
 > > tools and facilities to relay large amounts of data from kernel space
 > > to user space.  Full details can be found in Documentation/filesystems/
 > > relayfs.txt.  The current version can always be found at
 > > http://www.opersys.com/relayfs.
 > 
 > Could this be used to replace mmap() packet socket, how does it compare?

I think so - you could send high volumes of packet traffic to a bulk
relayfs channel and read it from the mmap'ed relayfs file in user
space.  The Linux Trace Toolkit does the same thing with large volumes
of trace data - you could look at that code as an example
(http://www.opersys.com/relayfs/ltt-on-relayfs.html).

Tom


 > 
 > -- 
 > // Gianni Tedesco (gianni at scaramanga dot co dot uk)
 > lynx --source www.scaramanga.co.uk/gianni-at-ecsc.asc | gpg --import
 > 8646BE7D: 6D9F 2287 870E A2C9 8F60 3A3C 91B5 7669 8646 BE7D
 > 

-- 
Regards,

Tom Zanussi <zanussi@us.ibm.com>
IBM Linux Technology Center/RAS


  reply	other threads:[~2003-07-15 15:47 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-07-15 15:15 [RFC][PATCH 0/5] relayfs Tom Zanussi
2003-07-15 15:27 ` Gianni Tedesco
2003-07-15 16:01   ` Tom Zanussi [this message]
2003-07-15 16:40     ` Gianni Tedesco
2003-07-15 17:01       ` Tom Zanussi
2003-07-15 18:45       ` Tom Zanussi
2003-07-16 21:55 ` [PATCH] relayfs Stephen Hemminger
2003-07-16 22:27   ` [PATCH] relay_open const filename Stephen Hemminger
2003-07-18 21:11   ` [PATCH] relayfs Tom Zanussi

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