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From: chris@basementcode.com (Christopher Harvey)
To: kernelnewbies@lists.kernelnewbies.org
Subject: system timer interrupt targets for SMP platforms with local timer support
Date: Tue, 17 May 2011 15:11:18 -0500	[thread overview]
Message-ID: <900043e98cd6a6677ecdf54f42ea9923@basementcode.com> (raw)

 I'm having a hard time finding out by reading documentation and source 
 code if a system timer IRQ is supposed to be directed at all cores of a 
 processor or if just interrupting one core is enough.

 I know interrupting one core is enough without local timers, because an 
 IPI will be used to interrupt the other. These IPIs are not used with 
 local timers, so does the global timer need to send an IRQ at the same 
 time to both cores in that case?

 Thanks,
 -Chris

             reply	other threads:[~2011-05-17 20:11 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-17 20:11 Christopher Harvey [this message]
2011-05-17 22:28 ` system timer interrupt targets for SMP platforms with local timer support Mulyadi Santosa
2011-05-17 23:56   ` Christopher Harvey
2011-05-18 20:08     ` Mulyadi Santosa

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