On 12/5/19 3:32 AM, Srikar Dronamraju wrote:
> With commit 247f2f6f3c70 ("sched/core: Don't schedule threads on pre-empted
> vCPUs"), scheduler avoids preempted vCPUs to schedule tasks on wakeup.
> This leads to wrong choice of CPU, which in-turn leads to larger wakeup
> latencies. Eventually, it
Hi,
On 12/5/19 2:02 PM, Srikar Dronamraju wrote:
> With commit 247f2f6f3c70 ("sched/core: Don't schedule threads on pre-empted
> vCPUs"), scheduler avoids preempted vCPUs to schedule tasks on wakeup.
> This leads to wrong choice of CPU, which in-turn leads to larger wakeup
> latencies.
* Srikar Dronamraju [2019-12-05 14:02:17]:
> With commit 247f2f6f3c70 ("sched/core: Don't schedule threads on pre-empted
> vCPUs"), scheduler avoids preempted vCPUs to schedule tasks on wakeup.
> This leads to wrong choice of CPU, which in-turn leads to larger wakeup
> latencies. Eventually, it
On Thu, Dec 05, 2019 at 02:02:17PM +0530 Srikar Dronamraju wrote:
> With commit 247f2f6f3c70 ("sched/core: Don't schedule threads on pre-empted
> vCPUs"), scheduler avoids preempted vCPUs to schedule tasks on wakeup.
> This leads to wrong choice of CPU, which in-turn leads to larger wakeup
>
With commit 247f2f6f3c70 ("sched/core: Don't schedule threads on pre-empted
vCPUs"), scheduler avoids preempted vCPUs to schedule tasks on wakeup.
This leads to wrong choice of CPU, which in-turn leads to larger wakeup
latencies. Eventually, it leads to performance regression in latency
sensitive
