On Thu, 2005-08-18 at 17:23 -0700, Sundar Narayanaswamy wrote:
> The SBC has two serial ports, ttyS0 and ttyS1 that are connected by the
> serial port cable. A program writes characters on ttyS0 while another
> program (with RealTime priority thread) reads the char from ttyS1 and
> echoes it back
Steve,
Thanks very much for your input. I applied the latest realtime-preempt
patch today (patch-2.6.13-rc6-rt9) on top of 2.6.13-rc6 kernel and I set
the high res timer to using TSC.
Anyways, I am not too concerned about the nanosleep test itself. I just
thought that would be a way to
Steven Rostedt wrote:
On Wed, 2005-08-17 at 19:38 -0700, Sundar Narayanaswamy wrote:
Hi,
I am trying to experiment using 2.6.12 kernel with the realtime-preempt
V0.7.51-38 patch to determine the kernel preemption latencies with the
CONFIG_PREEMPT_RT mode. The test program I wrote does the
Steven Rostedt wrote:
On Wed, 2005-08-17 at 19:38 -0700, Sundar Narayanaswamy wrote:
Hi,
I am trying to experiment using 2.6.12 kernel with the realtime-preempt
V0.7.51-38 patch to determine the kernel preemption latencies with the
CONFIG_PREEMPT_RT mode. The test program I wrote does the
Steve,
Thanks very much for your input. I applied the latest realtime-preempt
patch today (patch-2.6.13-rc6-rt9) on top of 2.6.13-rc6 kernel and I set
the high res timer to using TSC.
Anyways, I am not too concerned about the nanosleep test itself. I just
thought that would be a way to
On Thu, 2005-08-18 at 17:23 -0700, Sundar Narayanaswamy wrote:
The SBC has two serial ports, ttyS0 and ttyS1 that are connected by the
serial port cable. A program writes characters on ttyS0 while another
program (with RealTime priority thread) reads the char from ttyS1 and
echoes it back
On Wed, 2005-08-17 at 19:38 -0700, Sundar Narayanaswamy wrote:
> Hi,
> I am trying to experiment using 2.6.12 kernel with the realtime-preempt
> V0.7.51-38 patch to determine the kernel preemption latencies with the
> CONFIG_PREEMPT_RT mode. The test program I wrote does the following on
> a
Hi,
I am trying to experiment using 2.6.12 kernel with the realtime-preempt
V0.7.51-38 patch to determine the kernel preemption latencies with the
CONFIG_PREEMPT_RT mode. The test program I wrote does the following on
a thread with highest priority (99) and SCHED_FIFO policy to simulate
a real
Hi,
I am trying to experiment using 2.6.12 kernel with the realtime-preempt
V0.7.51-38 patch to determine the kernel preemption latencies with the
CONFIG_PREEMPT_RT mode. The test program I wrote does the following on
a thread with highest priority (99) and SCHED_FIFO policy to simulate
a real
On Wed, 2005-08-17 at 19:38 -0700, Sundar Narayanaswamy wrote:
Hi,
I am trying to experiment using 2.6.12 kernel with the realtime-preempt
V0.7.51-38 patch to determine the kernel preemption latencies with the
CONFIG_PREEMPT_RT mode. The test program I wrote does the following on
a thread
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