Re: [PATCH] KVM: x86: reduce default value of halt_poll_ns parameter

2016-03-30 Thread Paolo Bonzini
On 29/03/2016 19:16, David Matlack wrote: > On Tue, Mar 29, 2016 at 8:57 AM, Paolo Bonzini wrote: >> >> Windows lets applications choose the frequency of the timer tick, >> and in Windows 10 the maximum rate was changed from 1024 Hz to >> 2048 Hz. Unfortunately, because of the way the Windows A

Re: [PATCH] KVM: x86: reduce default value of halt_poll_ns parameter

2016-03-29 Thread David Matlack
On Tue, Mar 29, 2016 at 8:57 AM, Paolo Bonzini wrote: > > Windows lets applications choose the frequency of the timer tick, > and in Windows 10 the maximum rate was changed from 1024 Hz to > 2048 Hz. Unfortunately, because of the way the Windows API > works, most applications who need a higher ra

[PATCH] KVM: x86: reduce default value of halt_poll_ns parameter

2016-03-29 Thread Paolo Bonzini
Windows lets applications choose the frequency of the timer tick, and in Windows 10 the maximum rate was changed from 1024 Hz to 2048 Hz. Unfortunately, because of the way the Windows API works, most applications who need a higher rate than the default 64 Hz will just do timeGetDevCaps(&tc, si