Paul E. McKenney wrote:
> On Wed, Jan 30, 2008 at 11:45:01AM +0100, Wolfgang Grandegger wrote:
>> Paul E. McKenney wrote:
>>> On Wed, Jan 30, 2008 at 09:18:49AM +0100, Wolfgang Grandegger wrote:
Paul E. McKenney wrote:
> On Tue, Jan 29, 2008 at 02:38:04PM +0100, Wolfgang Grandegger wrote:
Hi,
On Wed, Jan 30, 2008 at 02:57:16AM -0800, Paul E. McKenney wrote:
..
> > Yes, I used "$ cyclictest -n -t1 -p80 -i1000" to measure the latency. So
> > far, I have not done other tests. Any recommendation?
> > As no-rt load I used "while ls; do ls /bin; done" in one telnet window
> > and "wh
On Wed, Jan 30, 2008 at 11:45:01AM +0100, Wolfgang Grandegger wrote:
> Paul E. McKenney wrote:
> > On Wed, Jan 30, 2008 at 09:18:49AM +0100, Wolfgang Grandegger wrote:
> >> Paul E. McKenney wrote:
> >>> On Tue, Jan 29, 2008 at 02:38:04PM +0100, Wolfgang Grandegger wrote:
> Luotao Fu wrote:
> >
Paul E. McKenney wrote:
> On Wed, Jan 30, 2008 at 09:18:49AM +0100, Wolfgang Grandegger wrote:
>> Paul E. McKenney wrote:
>>> On Tue, Jan 29, 2008 at 02:38:04PM +0100, Wolfgang Grandegger wrote:
Luotao Fu wrote:
> Hi,
>
> Wolfgang Grandegger wrote:
> ..
>> Do you st
On Wed, Jan 30, 2008 at 09:18:49AM +0100, Wolfgang Grandegger wrote:
> Paul E. McKenney wrote:
> > On Tue, Jan 29, 2008 at 02:38:04PM +0100, Wolfgang Grandegger wrote:
> >> Luotao Fu wrote:
> >>> Hi,
> >>>
> >>> Wolfgang Grandegger wrote:
> >>> ..
> Do you still get high latencies with
Paul E. McKenney wrote:
> On Tue, Jan 29, 2008 at 02:38:04PM +0100, Wolfgang Grandegger wrote:
>> Luotao Fu wrote:
>>> Hi,
>>>
>>> Wolfgang Grandegger wrote:
>>> ..
Do you still get high latencies with:
CONFIG_PREEMPT_RCU_BOOST=y
CONFIG_RCU_TRACE=y
CONFIG_NO_H
On Tue, Jan 29, 2008 at 02:38:04PM +0100, Wolfgang Grandegger wrote:
> Luotao Fu wrote:
> > Hi,
> >
> > Wolfgang Grandegger wrote:
> > ..
> >> Do you still get high latencies with:
> >>
> >> CONFIG_PREEMPT_RCU_BOOST=y
> >> CONFIG_RCU_TRACE=y
> >> CONFIG_NO_HZ is not set
> >>
> >> Wit
Luotao Fu wrote:
> Hi,
>
> Wolfgang Grandegger wrote:
> ..
>> Do you still get high latencies with:
>>
>> CONFIG_PREEMPT_RCU_BOOST=y
>> CONFIG_RCU_TRACE=y
>> CONFIG_NO_HZ is not set
>>
>> With this setting I have not yet realized latencies > 150us. Could you
>> please give it a try?
Hi,
Wolfgang Grandegger wrote:
..
> Do you still get high latencies with:
>
> CONFIG_PREEMPT_RCU_BOOST=y
> CONFIG_RCU_TRACE=y
> CONFIG_NO_HZ is not set
>
> With this setting I have not yet realized latencies > 150us. Could you
> please give it a try? If I change one of the parameter