LKML Archive on lore.kernel.org
help / color / mirror / Atom feed
* Can Linux kernel handle unsynced TSC?
@ 2008-02-29  8:55 Zhao Forrest
  2008-02-29 10:43 ` Peter Zijlstra
  0 siblings, 1 reply; 4+ messages in thread
From: Zhao Forrest @ 2008-02-29  8:55 UTC (permalink / raw)
  To: linux-kernel; +Cc: kvm-devel

Sorry for reposting it.

For example,
1 rdtsc() is invoked on CPU0
2 process is migrated to CPU1, and rdtsc() is invoked on CPU1
3 if TSC on CPU1 is slower than TSC on CPU0, can kernel guarantee
that the second rdtsc() doesn't return a value smaller than the one
returned by the first rdtsc()?

Thanks,
Forrest

^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2008-02-29 14:27 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-02-29  8:55 Can Linux kernel handle unsynced TSC? Zhao Forrest
2008-02-29 10:43 ` Peter Zijlstra
2008-02-29 14:20   ` Zhao Forrest
2008-02-29 14:27     ` Peter Zijlstra

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).