Excerpts from Andy Lutomirski's message of July 14, 2020 10:46 pm:
>
>
>> On Jul 13, 2020, at 11:31 PM, Nicholas Piggin wrote:
>>
>> Excerpts from Nicholas Piggin's message of July 14, 2020 3:04 pm:
>>> Excerpts from Andy Lutomirski's message of July 14, 2020 4:18 am:
> On Jul 13,
Excerpts from Andy Lutomirski's message of July 14, 2020 10:46 pm:
>
>
>> On Jul 13, 2020, at 11:31 PM, Nicholas Piggin wrote:
>>
>> Excerpts from Nicholas Piggin's message of July 14, 2020 3:04 pm:
>>> Excerpts from Andy Lutomirski's message of July 14, 2020 4:18 am:
> On Jul 13,
On Tue, Jul 14, 2020 at 05:46:05AM -0700, Andy Lutomirski wrote:
> x86 has this exact problem. At least no more than 64*8 CPUs share the cache
> line :)
I've seen patches for a 'sparse' bitmap to solve related problems.
It's basically the same code, except it multiplies everything (size,
> On Jul 13, 2020, at 11:31 PM, Nicholas Piggin wrote:
>
> Excerpts from Nicholas Piggin's message of July 14, 2020 3:04 pm:
>> Excerpts from Andy Lutomirski's message of July 14, 2020 4:18 am:
>>>
On Jul 13, 2020, at 9:48 AM, Nicholas Piggin wrote:
Excerpts from Andy
Excerpts from Nicholas Piggin's message of July 14, 2020 3:04 pm:
> Excerpts from Andy Lutomirski's message of July 14, 2020 4:18 am:
>>
>>> On Jul 13, 2020, at 9:48 AM, Nicholas Piggin wrote:
>>>
>>> Excerpts from Andy Lutomirski's message of July 14, 2020 1:59 am:
> On Thu, Jul 9, 2020
Excerpts from Andy Lutomirski's message of July 14, 2020 4:18 am:
>
>> On Jul 13, 2020, at 9:48 AM, Nicholas Piggin wrote:
>>
>> Excerpts from Andy Lutomirski's message of July 14, 2020 1:59 am:
On Thu, Jul 9, 2020 at 6:57 PM Nicholas Piggin wrote:
On big systems, the mm
> On Jul 13, 2020, at 9:48 AM, Nicholas Piggin wrote:
>
> Excerpts from Andy Lutomirski's message of July 14, 2020 1:59 am:
>>> On Thu, Jul 9, 2020 at 6:57 PM Nicholas Piggin wrote:
>>>
>>> On big systems, the mm refcount can become highly contented when doing
>>> a lot of context switching
Excerpts from Andy Lutomirski's message of July 14, 2020 1:59 am:
> On Thu, Jul 9, 2020 at 6:57 PM Nicholas Piggin wrote:
>>
>> On big systems, the mm refcount can become highly contented when doing
>> a lot of context switching with threaded applications (particularly
>> switching between the
On Thu, Jul 9, 2020 at 6:57 PM Nicholas Piggin wrote:
>
> On big systems, the mm refcount can become highly contented when doing
> a lot of context switching with threaded applications (particularly
> switching between the idle thread and an application thread).
>
> Abandoning lazy tlb slows
Excerpts from Peter Zijlstra's message of July 10, 2020 7:35 pm:
> On Fri, Jul 10, 2020 at 11:56:46AM +1000, Nicholas Piggin wrote:
>> On big systems, the mm refcount can become highly contented when doing
>> a lot of context switching with threaded applications (particularly
>> switching between
On Fri, Jul 10, 2020 at 11:56:46AM +1000, Nicholas Piggin wrote:
> On big systems, the mm refcount can become highly contented when doing
> a lot of context switching with threaded applications (particularly
> switching between the idle thread and an application thread).
>
> Abandoning lazy tlb
On big systems, the mm refcount can become highly contented when doing
a lot of context switching with threaded applications (particularly
switching between the idle thread and an application thread).
Abandoning lazy tlb slows switching down quite a bit in the important
user->idle->user cases, so
12 matches
Mail list logo