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Re: [PATCH] PERF(kernel): Cleanup power events V2

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On 10/26/2010 12:10 AM, Ingo Molnar wrote:
+
+	TP_STRUCT__entry(
+		__field(	u32,		state		)
+		__field(	u32,		cpu_id		)
Trace entries can carry a cpu_id of the current processor already. Can this cpu_id
ever be different from that CPU id?

yes

esp cpu frequency you can change cross cpu....

originally we did not have this in the API but Thomas added it for that reason some time ago.

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