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From: Monica Puig-Pey <puigpeym@unican.es>
To: <linux-rt-users@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: I/O operations priority in RTOS
Date: Sat, 4 Jun 2011 14:03:46 +0200	[thread overview]
Message-ID: <4DEA1F22.6000603@unican.es> (raw)
In-Reply-To: <4DEA1BA9.7020303@unican.es>

Hello,
I'm studying how to develop drivers in a real time OS and how do they 
work. I'm using  Ubuntu 10.04 with the 2.6.31-11-rt patch installed.
I would like to know the priority when executing open(), read(), write() 
and close() operations.
In my example the thread which is using the driver runs with 10 RTPRIO, 
but I don't know what happens in kernel context with the priority when 
running the I/O operations.
Thank you for your help, I don't know where to learn about this.

Mónica
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WARNING: multiple messages have this Message-ID (diff)
From: Monica Puig-Pey <puigpeym@unican.es>
To: <linux-rt-users@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: I/O operations priority in RTOS
Date: Sat, 4 Jun 2011 14:03:46 +0200	[thread overview]
Message-ID: <4DEA1F22.6000603@unican.es> (raw)
In-Reply-To: <4DEA1BA9.7020303@unican.es>

Hello,
I'm studying how to develop drivers in a real time OS and how do they 
work. I'm using  Ubuntu 10.04 with the 2.6.31-11-rt patch installed.
I would like to know the priority when executing open(), read(), write() 
and close() operations.
In my example the thread which is using the driver runs with 10 RTPRIO, 
but I don't know what happens in kernel context with the priority when 
running the I/O operations.
Thank you for your help, I don't know where to learn about this.

Mónica

  reply	other threads:[~2011-06-04 12:03 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-06-04 11:48 One Interrupted Threads per Interrupt line? Monica Puig-Pey
2011-06-04 11:48 ` Monica Puig-Pey
2011-06-04 12:03 ` Monica Puig-Pey [this message]
2011-06-04 12:03   ` I/O operations priority in RTOS Monica Puig-Pey
2011-06-04 12:30   ` kernel threads in drivers using the RT patch Monica Puig-Pey
2011-06-04 12:30     ` Monica Puig-Pey
2011-06-06 11:47     ` Changing Kernel thread priorities Monica Puig-Pey
2011-06-06 11:54       ` Rolando Martins
2011-06-06 11:54         ` Rolando Martins
2011-06-06 11:58         ` Monica Puig-Pey
2011-06-06 11:58           ` Monica Puig-Pey
2011-06-06 16:49           ` Mark Hounschell
2011-06-06 16:49             ` Mark Hounschell
2011-06-07  8:40             ` Monica Puig-Pey
2011-06-07  8:40               ` Monica Puig-Pey
2011-06-07  9:14               ` Mark Hounschell
2011-06-07  9:14                 ` Mark Hounschell
2011-06-07  9:46                 ` Mark Hounschell
2011-06-07  9:46                   ` Mark Hounschell
2011-06-07 18:34                   ` Monica Puig-Pey
2011-06-07 18:55                     ` Mark Hounschell
2011-06-07 18:55                       ` Mark Hounschell
2011-06-10 10:12                       ` Monica Puig-Pey
2011-06-10 10:12                         ` Monica Puig-Pey
2011-06-06 18:20       ` Armin Steinhoff
2011-06-06 18:20         ` Armin Steinhoff
2011-06-04 23:42   ` I/O operations priority in RTOS Nicholas Mc Guire
2011-06-05  8:46     ` Armin Steinhoff
2011-06-05  9:25       ` Jan Kiszka
2011-06-05 22:39         ` Armin Steinhoff
2011-06-05 23:09           ` Jan Kiszka
2011-06-05  9:28       ` Nicholas Mc Guire
2011-06-05  9:44         ` Jan Kiszka
2011-06-05 22:29           ` Nicholas Mc Guire
2011-06-05 23:00             ` Jan Kiszka
2011-06-06  0:21               ` Nicholas Mc Guire
2011-06-06 20:35                 ` Jan Kiszka
2011-06-06  7:41           ` Armin Steinhoff
2011-06-06 20:48             ` Jan Kiszka
2011-06-05 22:32         ` Armin Steinhoff

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