> Subject: Re: [dpdk-dev] [PATCH v5 09/10] eal: add EAL argument for setting > thread priority > > External email: Use caution opening links or attachments > > > On Mon, 29 Mar 2021 15:40:39 -0700 > Narcisa Ana Maria Vasile <navas...@linux.microsoft.com> wrote: > > > From: Narcisa Vasile <navas...@microsoft.com> > > > > Allow the user to choose the thread priority through an EAL command > > line argument. > > > > The user can select the thread priority to be either 'normal' > > or 'critical': > > --thread-prio normal > > --thread-prio realtime > > > > Signed-off-by: Narcisa Vasile <navas...@microsoft.com> > > The discussion internally was that this was intended to resolve issues on > Windows. > So it makes sense for Windows, but it is not something that we want to have > on Linux. > Could you make this Windows only, and add update the documentation > please. > > I just don't want Linux users discovering it, trying it, then reporting more > bugs.
Windows needs it from performance aspects. However if we're keeping this option for Windows a warning like the one below from MSDN [1] should be added to docu: " A thread with a base priority level above 11 interferes with the normal operation of the operating system. Using REALTIME_PRIORITY_CLASS may cause disk caches to not flush, cause the mouse to stop responding, and so on. " [1] - https://docs.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-setthreadpriority
