On 07/20/2015 05:49 PM, Frederic Weisbecker wrote:
On Mon, Jul 20, 2015 at 05:22:12PM -0400, Chris Metcalf wrote:
On 07/11/2015 10:30 AM, Frederic Weisbecker wrote:
On Fri, Jul 10, 2015 at 03:05:02PM -0400, Chris Metcalf wrote:
The tilegx chips typically don't do cpu offlining anyway,
On 07/11/2015 10:30 AM, Frederic Weisbecker wrote:
On Fri, Jul 10, 2015 at 03:05:02PM -0400, Chris Metcalf wrote:
The tilegx chips typically don't do cpu offlining anyway, since
we've never really found a usecase, so whatever you boot with
you always have available. We do have sup
> On Jul 11, 2015, at 10:44 AM, Frederic Weisbecker wrote:
>
>> On Fri, Jul 10, 2015 at 03:37:25PM -0400, Chris Metcalf wrote:
>> Normally the tilegx networking shim sends irqs to all the cores
>> to distribute the load of processing incoming-packet interrupts,
&
under a #ifdef CONFIG_NO_HZ_FULL
check, given that are stubbed tick_nohz_full_enabled() defined above.
True for the "if" clause, but the "housekeeping_mask" variable is only defined
under CONFIG_NO_HZ_FULL.
--
Chris Metcalf, EZChip Semiconductor
http://www.ezchip.com
--
To u
the set of cores we use
to only the online housekeeping cores.
To make client code easier to read, we introduce a new nohz_full
accessor, housekeeping_cpumask(), which returns a pointer to the
housekeeping_mask if nohz_full is enabled, and otherwise returns
the cpu_possible_mask.
Signed-off-by: Chr
On 07/10/2015 02:24 PM, Frederic Weisbecker wrote:
On Fri, Jul 10, 2015 at 01:33:44PM -0400, Chris Metcalf wrote:
In nohz_full mode, by default distribute networking shim
interrupts across the housekeeping cores, not all the cores.
I can't really tell, I have no idea what this driver doe
In nohz_full mode, by default distribute networking shim
interrupts across the housekeeping cores, not all the cores.
Signed-off-by: Chris Metcalf
---
The alternate approaches to this might be:
1. "#define housekeeping_mask cpu_online_mask" in the non-nohz_full
arm in ,
se; if you
specify "#define FOO" it implicitly defines it to the empty
string. Regardless, it doesn't matter what value it is
defined to if the only uses are "#ifdef", as is true here.
--
Chris Metcalf, EZChip Semiconductor
http://www.ezchip.com
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