On Tue, 15 Sep 2009, Joerg Sonnenberger wrote:
On Tue, Sep 15, 2009 at 11:27:32AM -0700, Paul Goyette wrote:Would hpet be a better choice for timecounter?Not really. It is an order of magnitude slower. The best approach would be to port the TSC sync code to the lapic timer, which is known to be fixed frequency and also phase coherent, I think.
Hmm, I'm not even sure what a lapic is, or if/how it differs from the ioapic mentioned in my dmesg! :)
I suspect that porting this would be well beyond my area of expertise. ------------------------------------------------------------------------- | Paul Goyette | PGP DSS Key fingerprint: | E-mail addresses: | | Customer Service | FA29 0E3B 35AF E8AE 6651 | paul at whooppee.com | | Network Engineer | 0786 F758 55DE 53BA 7731 | pgoyette at juniper.net | | Kernel Developer | | pgoyette at netbsd.org | -------------------------------------------------------------------------