Namely:
1. get rid of cpumask_weight() in hot paths, in Credit2;
2. checking whether prev==next in context_switch() is pointless.
Regards,
Dario
---
Dario Faggioli (2):
xen: credit2: avoid using cpumask_weight() in hot-paths
xen: sched: we never get into context_switch() with prev==next
xen/arch/arm/domain.c | 3 +--
xen/arch/x86/domain.c | 22 ++++++++--------------
xen/common/sched_credit2.c | 21 ++++++++++++++++-----
3 files changed, 25 insertions(+), 21 deletions(-)
--
Dario Faggioli, Ph.D
http://about.me/dario.faggioli
Virtualization Software Engineer
SUSE Labs, SUSE https://www.suse.com/
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<<This happens because _I_ choose it to happen!>> (Raistlin Majere)
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