[v1] xen/rcu: let rcu work better with core scheduling

[Xen-devel] [PATCH 0/2] xen/rcu: let rcu work better with core scheduling

Juergen Gross posted 2 patches 4 years, 2 months ago

Diff against v2 v3 v4 v5 v6 v7 v8
Download series mbox

Patches applied successfully (tree, apply log)
git fetch https://github.com/patchew-project/xen tags/patchew/20200217072006.20211-1-jgross@suse.com

There is a newer version of this series

xen/common/rcupdate.c      | 69 ++++++++++++++++++++++++++++++----------------
xen/include/xen/rcupdate.h |  2 +-
2 files changed, 46 insertions(+), 25 deletions(-)

Expand all Fold all

[Xen-devel] [PATCH 0/2] xen/rcu: let rcu work better with core scheduling

Posted by Juergen Gross 4 years, 2 months ago

Today the RCU handling in Xen is affecting scheduling in several ways.
It is raising sched softirqs without any real need and it requires
tasklets for rcu_barrier(), which interacts badly with core scheduling.

This small series repairs those issues.

Juergen Gross (2):
  xen/rcu: use rcu softirq for forcing quiescent state
  xen/rcu: don't use stop_machine_run() for rcu_barrier()

 xen/common/rcupdate.c      | 69 ++++++++++++++++++++++++++++++----------------
 xen/include/xen/rcupdate.h |  2 +-
 2 files changed, 46 insertions(+), 25 deletions(-)

-- 
2.16.4


_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel