Date: Tue, 10 Mar 2020 16:38:33 +1100 From: Peter Jeremy <peter@rulingia.com> To: Theron <theron.tarigo@gmail.com> Cc: FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: System clock is slow Message-ID: <20200310053833.GD3091@server.rulingia.com> In-Reply-To: <989cd36a-e015-940a-dfe2-851c6fdf4734@gmail.com> References: <989cd36a-e015-940a-dfe2-851c6fdf4734@gmail.com>
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[-- Attachment #1 --] On 2020-Mar-09 19:59:09 -0400, Theron <theron.tarigo@gmail.com> wrote: >Since switching from 12.1-RELEASE to CURRENT I've noticed timing >problems with audio applications. It turns out that the problem is not >with the audio drivers, but with the system clock driver, which now >reports passage of time 0.3% too slow. Although I discovered this only >recently, it's been broken since r352684 made on Sept. 25. Has anyone >else noticed? Note that r352684 was MFC'd to both 11-stable (r353007) and 12-stable (r353006) in early October and I don't recall seeing any adverse reports before this. Are you running NTP? If so, is NTP maintaining lock and what is the reported PLL frequency (ntpq -c kerni)? What does "sysctl kern.timecounter" report and have you tried using any of the alternative timecounters listed in kern.timecounter.choice? Are you overclocking your CPU (or doing anything else non-standard)? -- Peter Jeremy [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEE7rKYbDBnHnTmXCJ+FqWXoOSiCzQFAl5nJ9NfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldEVF QjI5ODZDMzA2NzFFNzRFNjVDMjI3RTE2QTU5N0EwRTRBMjBCMzQACgkQFqWXoOSi CzQGqg//TYmdlVgaxpZT35Ck8XhLYvqtJA1taUVLe6jaQntsoRiE2aQmEpp2UlN2 QU4YKqv7WngZc0n0m7drS/4mqeYXKOhaDJQEvBYf9q/iDJDQrzqAz2Wv7vGM/TUL vJ5SWBu3Z/Vz3mJwcd1MCF4lcCbE8jiAu+dZFkDVhjyx+oGV27DmadBUo1ZtJtPn kgeawlctXNI3Mfof2ZhNOrdGWIouNL+kmKQRCM6AeJXBtECXNgqYM5sGU+F9v0E3 CbpgTGaVv8vIXoiq7bvfvUeoVigYgNrSUd5IELDSAXRbZV7RPDhlL9w9OWu0TuJg i8PpX4CFGMeOA944WFLeBYbrNkCftkWOaR0JWsgLLfq/dMekvt/piW3Rag03LeAi mrn7ai6ao63zw9gZnSd/9PGg1nRr0Dp3x7Dm984LAeH5nlpQE+cgx8JpX+TAaKvo ZDfHWqlZra3RCQ71w46F3nS8VJm4wVzDzvdsyN4C5UpALuCpgUQFEXFREZ6Uzdpo yqWH7XLnUNQcfpDh8u5P8FdyoHNK3yxi0Mrd1OGTAR2NvOwZPJihCmIxe+vld272 0yqq9oojwRrDf4dOJM15LLB8WN9qFMP7bc+gqcP+gdi9kl5hWTKKWqlDYluFKzUb aYG9a3oJDSO9EWzTdLH4UPI2ZGFzsuFUv2m0S1fC4IuRjx7t22Q= =i4Cr -----END PGP SIGNATURE-----
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