* Cap related correction and enhancement of credit scheduler
@ 2013-10-14 5:29 Juergen Gross
2013-10-14 5:29 ` [PATCH 1/2] unpause parked vcpu before destroying it Juergen Gross
2013-10-14 5:29 ` [PATCH 2/2] Add cap value to credit scheduler debug info Juergen Gross
0 siblings, 2 replies; 5+ messages in thread
From: Juergen Gross @ 2013-10-14 5:29 UTC (permalink / raw)
To: xen-devel, george.dunlap
This patc series corrects an error in the credit scheduler realted to capped
out domains. Additionally the cap value of vcpus is added to the diagnostic
info printed by the scheduler's key handler.
[PATCH 1/2] unpause parked vcpu before destroying it
[PATCH 2/2] Add cap value to credit scheduler debug info
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH 1/2] unpause parked vcpu before destroying it
2013-10-14 5:29 Cap related correction and enhancement of credit scheduler Juergen Gross
@ 2013-10-14 5:29 ` Juergen Gross
2013-10-14 9:46 ` George Dunlap
2013-10-14 5:29 ` [PATCH 2/2] Add cap value to credit scheduler debug info Juergen Gross
1 sibling, 1 reply; 5+ messages in thread
From: Juergen Gross @ 2013-10-14 5:29 UTC (permalink / raw)
To: xen-devel, george.dunlap; +Cc: Juergen Gross
A capped out vcpu must be unpaused in case of moving it to another cpupool,
otherwise it will be paused forever.
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
---
xen/common/sched_credit.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c
index 3d6ea7a..2dd5ed7 100644
--- a/xen/common/sched_credit.c
+++ b/xen/common/sched_credit.c
@@ -929,6 +929,12 @@ csched_vcpu_remove(const struct scheduler *ops, struct vcpu *vc)
SCHED_STAT_CRANK(vcpu_destroy);
+ if ( test_and_clear_bit(CSCHED_FLAG_VCPU_PARKED, &svc->flags) )
+ {
+ SCHED_STAT_CRANK(vcpu_unpark);
+ vcpu_unpause(svc->vcpu);
+ }
+
if ( __vcpu_on_runq(svc) )
__runq_remove(svc);
--
1.7.10.4
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH 2/2] Add cap value to credit scheduler debug info
2013-10-14 5:29 Cap related correction and enhancement of credit scheduler Juergen Gross
2013-10-14 5:29 ` [PATCH 1/2] unpause parked vcpu before destroying it Juergen Gross
@ 2013-10-14 5:29 ` Juergen Gross
2013-10-14 9:47 ` George Dunlap
1 sibling, 1 reply; 5+ messages in thread
From: Juergen Gross @ 2013-10-14 5:29 UTC (permalink / raw)
To: xen-devel, george.dunlap; +Cc: Juergen Gross
Currently only the weight is the only scheduling parameter printed for
domains in the credit scheduler key handler. Add the cap value to be
printed as well.
Signed-off-by: Juergen Gross <juergen.gross@ts.fujitsu.com>
---
xen/common/sched_credit.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/xen/common/sched_credit.c b/xen/common/sched_credit.c
index 2dd5ed7..c737611 100644
--- a/xen/common/sched_credit.c
+++ b/xen/common/sched_credit.c
@@ -1747,7 +1747,8 @@ csched_dump_vcpu(struct csched_vcpu *svc)
if ( sdom )
{
- printk(" credit=%i [w=%u]", atomic_read(&svc->credit), sdom->weight);
+ printk(" credit=%i [w=%u,cap=%u]", atomic_read(&svc->credit),
+ sdom->weight, sdom->cap);
#ifdef CSCHED_STATS
printk(" (%d+%u) {a/i=%u/%u m=%u+%u (k=%u)}",
svc->stats.credit_last,
--
1.7.10.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
end of thread, other threads:[~2013-10-14 9:47 UTC | newest]
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2013-10-14 5:29 Cap related correction and enhancement of credit scheduler Juergen Gross
2013-10-14 5:29 ` [PATCH 1/2] unpause parked vcpu before destroying it Juergen Gross
2013-10-14 9:46 ` George Dunlap
2013-10-14 5:29 ` [PATCH 2/2] Add cap value to credit scheduler debug info Juergen Gross
2013-10-14 9:47 ` George Dunlap
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