> On Jul 22, 2019, at 2:07 PM, Peter Zijlstra wrote:
>
> On Thu, Jul 18, 2019 at 10:41:10AM -0700, Nadav Amit wrote:
>> The current_task is supposed to be constant in each thread and therefore
>> does not need to be reread. There is already an attempt to cache it
>> using inline assembly, using
On Thu, Jul 18, 2019 at 10:41:10AM -0700, Nadav Amit wrote:
> The current_task is supposed to be constant in each thread and therefore
> does not need to be reread. There is already an attempt to cache it
> using inline assembly, using this_cpu_read_stable(), which hides the
> dependency on the
The current_task is supposed to be constant in each thread and therefore
does not need to be reread. There is already an attempt to cache it
using inline assembly, using this_cpu_read_stable(), which hides the
dependency on the read memory address.
However, this caching is not working very well.
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