From mboxrd@z Thu Jan  1 00:00:00 1970
From: anupam.kapoor@gmail.com (Anupam Kapoor)
Date: Fri, 20 Nov 2015 14:10:59 +0530
Subject: viability of supporting interrupts in user space driver?
In-Reply-To: <alpine.LFD.2.20.1511200236040.21896@localhost>
References: <alpine.LFD.2.20.1511200236040.21896@localhost>
Message-ID: <871tblhxlw.fsf@fatcat.parallelwireless>
To: kernelnewbies@lists.kernelnewbies.org
List-Id: kernelnewbies.lists.kernelnewbies.org


>>>>> [2015-11-20T13:08:46+0530]: "Robert P. J. Day" (robert-pj-day):
,----[ robert-pj-day ]
| some colleagues are considering implementing some user space drivers
| that need to recognize and process interrupts. i'm aware of the
| possibilities -- UIO, for example -- but other than the technical
| possibility of doing that, can anyone provide feedback on the
| viability or benchmarking of that?
|
| is there an example someone can point at that demonstrates the
| goodness or not of such an approach? has anyone out there done this,
| and lived to regret it in terms of performance? thanks.
`----
well, dpdk folks seem to be doing just that for quite a while, and seem
to be doing not too shabby in that space.

--
kind regards
anupam