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From: "Ming Lei" <lei.ming@attbi.com>
To: <linux-kernel@vger.kernel.org>
Subject: Linux 2.4 scheduler is RTOS-alike?
Date: Thu, 22 May 2003 10:59:31 -0700	[thread overview]
Message-ID: <000701c3208b$e59201c0$0305a8c0@arch.sel.sony.com> (raw)
In-Reply-To: <20030514205949.GA3945@kroah.com>


this question is regarding linux kernel 2.4.7-2.4.20.
linux 2.4 kernel does support real time sheduler. If using FIFO real time
schedule policy, would the case that higher priority thread starve the lower
priority thread happen?  Similarly, let's say an example: if I have higher
prioority thread A and lower priority thread B, thread A is running without
any wait or blocking, is there a possiblity that 2.4 scheduler may want to
switch to thread B? Why?

If I want to instrument the 2.4 kernel to print out the message for every
thread context switch, where should I put the trace point?



  parent reply	other threads:[~2003-05-22 17:45 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-05-14 20:20 [PATCH][ATM] add reference counting to atm_dev chas williams
2003-05-14 20:36 ` David S. Miller
2003-05-14 22:16   ` chas williams
2003-05-15  4:30     ` David S. Miller
2003-05-15 14:39       ` chas williams
2003-05-15 20:10         ` David S. Miller
2003-05-15 20:20           ` chas williams
2003-05-16  0:14             ` David S. Miller
2003-05-16 16:05               ` chas williams
2003-05-16 20:44                 ` David S. Miller
2003-05-16  0:19             ` David S. Miller
2003-05-14 20:59 ` Greg KH
2003-05-14 21:02   ` David S. Miller
2003-05-14 21:57     ` Greg KH
2003-05-14 22:21   ` chas williams
2003-05-15  5:20     ` Greg KH
2003-05-15 14:32       ` chas williams
2003-05-15 19:09         ` Greg KH
2003-05-15 19:17           ` chas williams
2003-05-20 12:25             ` Duncan Sands
2003-05-16  0:12         ` David S. Miller
2003-05-16 14:40         ` Duncan Sands
2003-05-16 15:39           ` chas williams
2003-05-16 18:48             ` Francois Romieu
2003-05-22 17:59   ` Ming Lei [this message]
2003-05-22 20:01   ` Linux 2.4 scheduler is RTOS-alike? Ming Lei
2003-05-22 20:37     ` Elladan
2003-05-22 20:47     ` Elladan

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