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| /freebsd-11-stable/sys/x86/x86/ | ||
| H A D | tsc.c | diff 221214 Fri Apr 29 16:29:33 MDT 2011 jkim Detect VMware guest and set the TSC frequency as reported by the hypervisor. VMware products virtualize TSC and it run at fixed frequency in so-called "apparent time". Although virtualized i8254 also runs in apparent time, TSC calibration always gives slightly off frequency because of the complicated timer emulation and lost-tick correction mechanism. |
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