In nested virtualization, choosing the smaller value for the
time slice between the MAX_SCHEDULE and the budget will cause
high host CPU usage.
Signed-off-by: Tianyang Chen <tianyangp...@gmail.com>
---
xen/common/sched_rt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/xen/common/sched_rt.c b/xen/common/sched_rt.c
index 4372486..9da3f35 100644
--- a/xen/common/sched_rt.c
+++ b/xen/common/sched_rt.c
@@ -889,7 +889,7 @@ rt_schedule(const struct scheduler *ops, s_time_t now,
bool_t tasklet_work_sched
}
}
- ret.time = MIN(snext->budget, MAX_SCHEDULE); /* sched quantum */
+ ret.time = MAX_SCHEDULE; /*should be used in nested virtualization*/
ret.task = snext->vcpu;
/* TRACE */
--
1.7.9.5
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