diff options
| author |   Mike Marciniszyn <mike.marciniszyn@intel.com> | 2016-05-12 10:23:28 -0700 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2016-05-13 19:39:17 -0400 |
| commit | cdbff5042d69bbe3f9840bea03863c93f93c88fa (patch) | |
| tree | 1abddfb43165a33c44229f3b8de91d714ce3f63c /drivers/infiniband/sw/rdmavt/cq.c | |
| parent | IB/hfi1: Fix hfi_rcvhdr tracepoint (diff) | |
| download | linux-dev-cdbff5042d69bbe3f9840bea03863c93f93c88fa.tar.xz linux-dev-cdbff5042d69bbe3f9840bea03863c93f93c88fa.zip | |
IB/rdmavt: Increase CQ callback thread priority
The priority of the send engines is higher than the CQ completion
thread potentially causing completions to be starved for very
fast interfaces.
Change the CQ kthread to match the send engine threads to minimize
this delay for ULP completion processing.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/sw/rdmavt/cq.c')
| -rw-r--r-- | drivers/infiniband/sw/rdmavt/cq.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rdmavt/cq.c b/drivers/infiniband/sw/rdmavt/cq.c index b1ffc8b4a6c0..6ca6fa80dd6e 100644 --- a/drivers/infiniband/sw/rdmavt/cq.c +++ b/drivers/infiniband/sw/rdmavt/cq.c @@ -525,6 +525,7 @@ int rvt_driver_cq_init(struct rvt_dev_info *rdi) return PTR_ERR(task); } + set_user_nice(task, MIN_NICE); cpu = cpumask_first(cpumask_of_node(rdi->dparms.node)); kthread_bind(task, cpu); wake_up_process(task); |