Date: Tue, 08 Jul 2003 23:50:35 -0700 From: Terry Lambert <tlambert2@mindspring.com> To: John Baldwin <jhb@FreeBSD.org> Cc: FreeBSD current users <current@FreeBSD.ORG> Subject: Re: SMP and setrunnable()- scheduler 4bsd Message-ID: <3F0BBB3B.EF2F5687@mindspring.com> References: <XFMail.20030708183742.jhb@FreeBSD.org>
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John Baldwin wrote: > This is why HLT is not enabled in SMP by default (or at least was, > it may be turned on now). Given that the clock interrupts are > effectively broadcast to all CPU's one way or another for all > arch's (that I know of), you will never halt more than the interval > between clock ticks on any CPU. I thought that there was either a SPARC or Alpha box where Poul had to mess with the divider because they were delivered round robin, instead? -- Terry
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