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winchell
2008 Jun 05
2
[PATCH 1/2] Migrate tsc values during migration
Migrate the last TSC values for more accurate timekeeping during live
migration
Signed-off-by: Dave Winchell <dwinchell@virtualiron.com>
Signed-off-by: Ben Guthro <bguthro@virtualiron.com>
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2008 Jun 13
16
Isolation and time
...ore skew?)
If the load on other domains canNOT affect time skew
on domain A, testing for time skew becomes a lot
easier. (Use sched-credit instead of launching multiple
domains.)
Comments? My preliminary testing has been inconclusive.
Dan
-----Original Message-----
From: Dave Winchell [mailto:dwinchell@virtualiron.com]
Sent: Thursday, June 12, 2008 4:14 PM
To: dan.magenheimer@oracle.com
Cc: Dave Winchell
Subject: RE: xen hpet patch
Dan,
Usually forcing "out-of-context" is more stressful.
I think doing it with real domains under load is more realistic.
However, the scheduling thing ma...
2008 Jul 01
25
Guest TSC and Xen (Intel and AMD feedback please)
Various versions of Linux under various circumstances select
TSC as the primary clocksource for the kernel. This is
especially true for uniprocessor kernels, but also in some
cases for multiprocessor kernels. In most cases, this
is because a processor bit (tsc_invariant? constant_tsc?)
is passed through directly from the hardware via Xen and
tested by the hvm guest and the result implies that