On 16/01/15 19:37, William Cohen wrote:
On 01/16/2015 01:29 PM, Zoltan Kiss wrote:
On 16/01/15 15:38, William Cohen wrote:
On 01/16/2015 09:01 AM, Zoltan Kiss wrote:
Hi,
I'm using OProfile to check some suspicious behaviour of dpdk-pktgen,
and I can see something which troubles me. Either
Hi,
Another fun fact I forgot to mention: if I profile only this thread, and
then run opreport with cpu filtering, it only shows results on the right
cpu. So the wrong accounting only happens when I do system wide
profiling. But not just with this thread and function, other functions
appear a
On 01/16/2015 01:29 PM, Zoltan Kiss wrote:
>
>
> On 16/01/15 15:38, William Cohen wrote:
>> On 01/16/2015 09:01 AM, Zoltan Kiss wrote:
>>> Hi,
>>>
>>> I'm using OProfile to check some suspicious behaviour of dpdk-pktgen,
>>> and I can see something which troubles me. Either the scheduler lies
>>>
On 16/01/15 15:38, William Cohen wrote:
On 01/16/2015 09:01 AM, Zoltan Kiss wrote:
Hi,
I'm using OProfile to check some suspicious behaviour of dpdk-pktgen,
and I can see something which troubles me. Either the scheduler lies
about core affinity or Oprofile accounts some samples wrongly.
This
Hi,
On 16/01/15 15:38, William Cohen wrote:
On 01/16/2015 09:01 AM, Zoltan Kiss wrote:
Hi,
I'm using OProfile to check some suspicious behaviour of dpdk-pktgen,
and I can see something which troubles me. Either the scheduler lies
about core affinity or Oprofile accounts some samples wrongly.
T
On 01/16/2015 09:01 AM, Zoltan Kiss wrote:
> Hi,
>
> I'm using OProfile to check some suspicious behaviour of dpdk-pktgen,
> and I can see something which troubles me. Either the scheduler lies
> about core affinity or Oprofile accounts some samples wrongly.
> This userspace app runs in threads,
Hi,
> OK I read them and it seems that in order to change the scheduler, I have to
> write a C code and call the sched_set* functions. Please correct that if I am
> wrong.
>
> So in order to use my custom scheduler, I have to do the following steps.
>
> 1- Write my code using the APIs and sav
On Sun, Mar 23, 2014 at 7:27 AM, Mahmood Naderan wrote:
>
>
>
>
> On Sunday, March 23, 2014 6:35 PM, Mark Knecht wrote:
>>In terms of changing the scheduler I think that you possibly missed
>>reading Documentation/block/switching-sched.txt in the kernel's
>>documentation directory.
>>
>>HTH,
>>Ma
On Sunday, March 23, 2014 6:35 PM, Mark Knecht wrote:
>In terms of changing the scheduler I think that you possibly missed
>reading Documentation/block/switching-sched.txt in the kernel's
>documentation directory.
>
>HTH,
>Mark
That is IO scheduler. Can we use the same for threads/processes?
On Sun, Mar 23, 2014 at 4:01 AM, Mahmood Naderan wrote:
>
>
>
>
>
>
>>On Thursday, March 20, 2014 6:53 AM, Mike Galbraith
>> wrote:
>>
>>marge:~ # man -k setscheduler getscheduler
>>sched_setscheduler (2) - set and get scheduling policy/parameters
>>sched_setscheduler (3p) - set scheduling policy
>On Thursday, March 20, 2014 6:53 AM, Mike Galbraith
>wrote:
>
>marge:~ # man -k setscheduler getscheduler
>sched_setscheduler (2) - set and get scheduling policy/parameters
>sched_setscheduler (3p) - set scheduling policy and parameters (REALTIME)
>sched_getscheduler (2) - set and get sche
On Wed, 2014-03-19 at 13:01 -0700, Mahmood Naderan wrote:
>
> One more question. Is it possible to dynamically change the scheduling
> policy, e.g from fair to clock?
marge:~ # man -k setscheduler getscheduler
sched_setscheduler (2) - set and get scheduling policy/parameters
sched_setscheduler (3
On Wednesday, March 19, 2014 4:36 PM, Jack Carrozzo wrote:
>On Wed, Mar 19, 2014 at 7:34 AM, Mahmood Naderan wrote:
>
>>
>> [...]
>> Do you mean include/linux/sched.h ?
>> Where is he implementation then?
>
>Your kernel source is incomplete. You can fetch a vanilla kernel
>tarball from http:
On Wed, Mar 19, 2014 at 7:34 AM, Mahmood Naderan wrote:
>
> [...]
> Do you mean include/linux/sched.h ?
> Where is he implementation then?
Your kernel source is incomplete. You can fetch a vanilla kernel
tarball from http://kernel.org.
jackc@kdev0 ~ $ ls /usr/src/linux-2.6.10/kernel/|grep sched
>On Wednesday, March 19, 2014 3:57 PM, Mike Galbraith
> wrote:
>On Wed, 2014-03-19 at 02:57 -0700, Mahmood Naderan wrote:
>>
>> Hi
>> Maybe this is a noob question...
>> Where in the linux kernel source (2.6), the
>>
>> thread scheduler has been implemented? Searching
>>
>> the web shows
On Wed, 2014-03-19 at 02:57 -0700, Mahmood Naderan wrote:
>
> Hi
> Maybe this is a noob question...
> Where in the linux kernel source (2.6), the
>
> thread scheduler has been implemented? Searching
>
> the web shows that there should sched_fair.c but
>
> I can not find that in the source d
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