On 5/30/12 11:27 PM, Andrey Zonov wrote:
Hi,
I have long running process for which `ps -o usertime -p $pid' shows
always the same time - 6190:07.65, `ps -o cputime -p $pid' for the same
process continue to grow and now it's 21538:53.61. It looks like
overflow in resource usage code or something.
Hello,
I have written a bus device driver
which itself is a pci driver. Child devices
may allocate resources from my bus device.
My bus device does the usual
management of resources through
the children's ivars.
My question is this:
The bus device mallocs the
children's ivars in bus_add_child
a
Sorry to hijack this thread, but just recently I've stumbled upon this Linux
tool:
http://lwn.net/Articles/353295/
perf sched latency seems to be particularly convenient and useful. The idea to
track time between a point when a thread is waken up and a point when the thread
actually run was qui
On Thu, May 31, 2012 at 8:33 AM, Andriy Gapon wrote:
> In this vein it might make sense to enable KTR and KTR_SCHED in GENERIC.
KTR_SCHED comes with a performance hit. Besides, with the DTrace
sched provider that I committed this month (and MFC'ed yesterday) you
can collect schedgraph data with
on 31/05/2012 15:48 Ryan Stone said the following:
> On Thu, May 31, 2012 at 8:33 AM, Andriy Gapon wrote:
>> In this vein it might make sense to enable KTR and KTR_SCHED in GENERIC.
>
> KTR_SCHED comes with a performance hit.
Yep, I realize that. But I hope that it is not too huge for typical u
On Thu, May 31, 2012 at 8:48 AM, Ryan Stone wrote:
> KTR_SCHED comes with a performance hit. Besides, with the DTrace
> sched provider that I committed this month (and MFC'ed yesterday) you
> can collect schedgraph data with a D script.
I suppose it would have been helpful to provide a link to t
Hi,
That's cool and one of the things I'm using this to investigate.
However, I'm still seeing weird TSC behaviour, which I'd like to
finish trying to root cause before moving onto bigger and weirder
things.
I'm not sure how feasible it'd be to "make" KTR work with power saving
modes enabled on
Ryan Stone wrote:
> On Thu, May 31, 2012 at 8:33 AM, Andriy Gapon wrote:
> > In this vein it might make sense to enable KTR and KTR_SCHED in GENERIC.
>
> KTR_SCHED comes with a performance hit. Besides, with the DTrace
> sched provider that I committed this month (and MFC'ed yesterday) you
> c
On Wednesday, May 30, 2012 3:56:02 pm Mark Felder wrote:
> On Wed, 30 May 2012 12:17:07 -0500, John Baldwin wrote:
>
> >
> > Humm, can you test it with 2 CPUs?
> >
>
> We primarily only run with 1 CPU. We have seen it crash on multiple CPU
> VMs. Also, Dane Foster appeared to have been using m
So when this hang happens, there never is a real panic. It just sits in a
state which I describe as like being in a deadlock. How would I go about
getting a crashdump if it never panics? Is it possible to do the dump over
a network or something because I don't believe it can write through the
On Wednesday, May 30, 2012 6:02:15 pm Adrian Chadd wrote:
> Hi,
>
> I've re-run the test with powerd and sleep state stuff disabled - lo
> and behold, UDP tests are now up around 240-250MBit, what I'd expect
> for this 2 stream 11n device.
>
> So why is it that I lose roughly 80MBit of throughput
On 05/31/12 01:02, Adrian Chadd wrote:
I've re-run the test with powerd and sleep state stuff disabled - lo
and behold, UDP tests are now up around 240-250MBit, what I'd expect
for this 2 stream 11n device.
So why is it that I lose roughly 80MBit of throughput with powerd and
C2/C3 enabled, when
On Thursday, May 31, 2012 11:11:11 am Mark Felder wrote:
> So when this hang happens, there never is a real panic. It just sits in a
> state which I describe as like being in a deadlock. How would I go about
> getting a crashdump if it never panics? Is it possible to do the dump over
> a netw
On Thursday, May 31, 2012 4:19:46 am Norbert Koch wrote:
> Hello,
>
> I have written a bus device driver
> which itself is a pci driver. Child devices
> may allocate resources from my bus device.
>
> My bus device does the usual
> management of resources through
> the children's ivars.
>
> My qu
On May 31, 2012, at 9:54 AM, John Baldwin wrote:
> On Thursday, May 31, 2012 4:19:46 am Norbert Koch wrote:
>> Hello,
>>
>> I have written a bus device driver
>> which itself is a pci driver. Child devices
>> may allocate resources from my bus device.
>>
>> My bus device does the usual
>> manag
Hello-
The first ever "C Conference" is happening August 28th, 2012 in San
Diego, CA. The target audience are people who implement systems in C.
Whether that be new languages, libraries, kernels, daemons or games.
A reverse call for papers is up and closes June 7th. Submit talks you
would like to
On Thursday, May 31, 2012 12:15:48 pm Warner Losh wrote:
>
> On May 31, 2012, at 9:54 AM, John Baldwin wrote:
>
> > On Thursday, May 31, 2012 4:19:46 am Norbert Koch wrote:
> >> Hello,
> >>
> >> I have written a bus device driver
> >> which itself is a pci driver. Child devices
> >> may allocate
On 31 May 2012 07:55, John Baldwin wrote:
> On Wednesday, May 30, 2012 6:02:15 pm Adrian Chadd wrote:
>> Hi,
>>
>> I've re-run the test with powerd and sleep state stuff disabled - lo
>> and behold, UDP tests are now up around 240-250MBit, what I'd expect
>> for this 2 stream 11n device.
>>
>> So
Hi,
Would you please file a PR with all of your work? :-)
Thanks,
Adrian
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