Re: Pure polling mode for netdevices

2016-10-27 Thread Zach Brown
On Fri, Oct 21, 2016 at 11:41:46AM -0700, Eric Dumazet wrote: > On Fri, 2016-10-21 at 13:03 -0500, Zach Brown wrote: > > Is there a way to get NAPI to poll all the time? > > Or just any way to get netdevices to use only polling and no interrupts? > > > > We have some rt targets where the jitter ca

Re: Pure polling mode for netdevices

2016-10-21 Thread Eric Dumazet
On Fri, 2016-10-21 at 13:03 -0500, Zach Brown wrote: > Is there a way to get NAPI to poll all the time? > Or just any way to get netdevices to use only polling and no interrupts? > > We have some rt targets where the jitter can be improved by disabling > interrupts and using just polling. In these

Pure polling mode for netdevices

2016-10-21 Thread Zach Brown
Is there a way to get NAPI to poll all the time? Or just any way to get netdevices to use only polling and no interrupts? We have some rt targets where the jitter can be improved by disabling interrupts and using just polling. In these cases we're okay with the performance downsides that come with