Re: [PATCH 2/2] x86/mwait-idle: Customize IceLake server support

2020-10-14 Thread Jan Beulich
On 13.10.2020 05:02, Igor Druzhinin wrote: > From: Chen Yu > > On ICX platform, the C1E auto-promotion is enabled by default. > As a result, the CPU might fall into C1E more offen than previous > platforms. So disable C1E auto-promotion and expose C1E as a separate > idle state. > > Beside C1 an

[PATCH 2/2] x86/mwait-idle: Customize IceLake server support

2020-10-12 Thread Igor Druzhinin
From: Chen Yu On ICX platform, the C1E auto-promotion is enabled by default. As a result, the CPU might fall into C1E more offen than previous platforms. So disable C1E auto-promotion and expose C1E as a separate idle state. Beside C1 and C1E, the exit latency of C6 was measured by a dedicated t