On Thu, 7 Dec 2017 01:27:03 +
"Su, David W" wrote:
> >And spin_lock() turns into a mutex in PREEMPT_RT, which means it can
> >sleep. You can't sleep in hard interrupt context. This will eventually
> >crash the kernel.
>
> Steve, thanks for your review and comment.
>
On Thu, 7 Dec 2017 01:27:03 +
"Su, David W" wrote:
> >And spin_lock() turns into a mutex in PREEMPT_RT, which means it can
> >sleep. You can't sleep in hard interrupt context. This will eventually
> >crash the kernel.
>
> Steve, thanks for your review and comment.
>
> I can think of 2
From: Steven Rostedt [mailto:rost...@goodmis.org]
Sent: Thursday, November 30, 2017 6:09 PM
>
>On Thu, 30 Nov 2017 17:05:35 -0800
>David Su wrote:
>
>> Setting MSI/MSI-X ISR to be non-threaded will result in shorter and more
>> deterministic IRQ delivery latencies to VFIO
From: Steven Rostedt [mailto:rost...@goodmis.org]
Sent: Thursday, November 30, 2017 6:09 PM
>
>On Thu, 30 Nov 2017 17:05:35 -0800
>David Su wrote:
>
>> Setting MSI/MSI-X ISR to be non-threaded will result in shorter and more
>> deterministic IRQ delivery latencies to VFIO applications, because
>>
On Thu, 30 Nov 2017 17:05:35 -0800
David Su wrote:
> Setting MSI/MSI-X ISR to be non-threaded will result in shorter and more
> deterministic IRQ delivery latencies to VFIO applications, because
> context switches to the ISR thread are eliminated. This is important
> for
On Thu, 30 Nov 2017 17:05:35 -0800
David Su wrote:
> Setting MSI/MSI-X ISR to be non-threaded will result in shorter and more
> deterministic IRQ delivery latencies to VFIO applications, because
> context switches to the ISR thread are eliminated. This is important
> for applications with low
Setting MSI/MSI-X ISR to be non-threaded will result in shorter and more
deterministic IRQ delivery latencies to VFIO applications, because
context switches to the ISR thread are eliminated. This is important
for applications with low latency requirement running in virtual
machines on RT Linux
Setting MSI/MSI-X ISR to be non-threaded will result in shorter and more
deterministic IRQ delivery latencies to VFIO applications, because
context switches to the ISR thread are eliminated. This is important
for applications with low latency requirement running in virtual
machines on RT Linux
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