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SubjectRe: [PATCH v2] KVM: LAPIC: Loose fluctuation filter for auto tune lapic_timer_advance_ns
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On 26/09/19 02:54, Wanpeng Li wrote:
> -#define LAPIC_TIMER_ADVANCE_ADJUST_MIN 100
> -#define LAPIC_TIMER_ADVANCE_ADJUST_MAX 5000
> -#define LAPIC_TIMER_ADVANCE_ADJUST_INIT 1000
> +#define LAPIC_TIMER_ADVANCE_EXPIRE_MIN 100
> +#define LAPIC_TIMER_ADVANCE_EXPIRE_MAX 10000
> +#define LAPIC_TIMER_ADVANCE_NS_INIT 1000
> +#define LAPIC_TIMER_ADVANCE_NS_MAX 5000

I think the old #define value is good. What about:

-#define LAPIC_TIMER_ADVANCE_ADJUST_MIN 100
-#define LAPIC_TIMER_ADVANCE_ADJUST_MAX 5000
-#define LAPIC_TIMER_ADVANCE_ADJUST_INIT 1000
+#define LAPIC_TIMER_ADVANCE_ADJUST_MIN 100 /* clock cycles */
+#define LAPIC_TIMER_ADVANCE_ADJUST_MAX 10000 /* clock cycles */
+#define LAPIC_TIMER_ADVANCE_NS_INIT 1000
+#define LAPIC_TIMER_ADVANCE_NS_MAX 5000

?

Thanks,

Paolo

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