Displaying 5 results from an estimated 5 matches for "csched_schedule".
2013 Mar 08
2
[PATCH v2 1/2] credit2: Fix erronous ASSERT
...on/sched_credit2.c
@@ -1544,31 +1544,24 @@ csched_runtime(const struct scheduler *ops, int cpu, struct csched_vcpu *snext)
}
}
- /*
- * snext is about to be scheduled; so:
- *
- * 1. if snext->credit were less than 0 when it was taken off the
- * runqueue, then csched_schedule() should have called
- * reset_credit(). So at this point snext->credit must be greater
- * than 0.
- *
- * 2. snext''s credit must be greater than or equal to anyone else
- * in the queue, so snext->credit - swait->credit must be greater
- * than or equal...
2011 Sep 01
4
[PATCH] xen,credit1: Add variable timeslice
...69,7 +1168,7 @@ csched_tick(void *_cpu)
*/
csched_runq_sort(prv, cpu);
- set_timer(&spc->ticker, NOW() + MILLISECS(CSCHED_MSECS_PER_TICK));
+ set_timer(&spc->ticker, NOW() + MICROSECS(prv->tick_period_us) );
}
static struct csched_vcpu *
@@ -1375,7 +1374,7 @@ csched_schedule(
* Return task to run next...
*/
ret.time = (is_idle_vcpu(snext->vcpu) ?
- -1 : MILLISECS(CSCHED_MSECS_PER_TSLICE));
+ -1 : MILLISECS(prv->tslice_ms));
ret.task = snext->vcpu;
CSCHED_VCPU_CHECK(ret.task);
@@ -1469,10 +1468,9 @@ csc...
2006 Jun 20
1
Re: [Xen-ia64-devel] Weekly benchmark results [ww24]
....
>
>(XEN) BUG at sched_credit.c:1075
>(XEN) die_if_kernel: bug check 0
>(XEN) d 0xf0000000041d00c8 domid 7
>(XEN) vcpu 0xf0000000041c0000 vcpu 0
>(XEN)
>(XEN) CPU 1
>(XEN) psr : 0000101008222018 ifs : 8000000000000a98 ip :
>[<f0000000040375a0>]
>(XEN) ip is at csched_schedule+0x970/0xf70
>(XEN) unat: 0000000000000000 pfs : 0000000000000a98 rsc : 0000000000000003
>(XEN) rnat: 0000121008226018 bsps: f00000000405a6c0 pr : 000000000001aaa9
>(XEN) ldrs: 0000000000000000 ccv : 0000000000000000 fpsr: 0009804c8a70033f
>(XEN) csd : 0000000000000000 ssd : 00000000000...
2010 Aug 19
1
Credit Scheduler code question
Hi,
I''m a PhD student trying to add some load balancing code to the credit
scheduler in order to fit some specific necessities. I''m trying to
understand the credit scheduler code and I don''t quite get in which part of
it a pcpu starts running a vcpu. I need to keep track of when a vpcu starts
running in a cpu and when it stops. Any hint on that?
I think that it would
2012 Dec 03
17
[PATCH 0 of 3] xen: sched_credit: fix tickling and add some tracing
Hello,
This small series deals with some weirdness in the mechanism with which the
credit scheduler choses what PCPU to tickle upon a VCPU wake-up. Details are
available in the changelog of the first patch.
The new approach has been extensively benchmarked and proved itself either
beneficial or harmless. That means it does not introduce any significant amount
of overhead and/or performances