logic/pipeline: attempt adjust thread priority

Calling QThread::setPriority twice in a succession
means:

1. if you can, set high priority
  a) if not allowed, highest won't work either
  b) if allowed, see below
2. if you can, set highest priority
  a) if highest is allowed, happy happy joy joy
  b) if not, at least high priority is successful

Note that we don't have any return value from
QThread::setPriority().

1 files changed, 4 insertions, 0 deletions

diff --git a/logic/pipeline.cpp b/logic/pipeline.cpp
index e506b7cf..6a01b272 100644
--- a/logic/pipeline.cpp
+++ b/logic/pipeline.cpp
@@ -277,6 +277,7 @@ bool maybe_nan(const char* text, const char* fun, int line, const xs&... vals)
 #   define nan_check(...) (void)(__VA_ARGS__)
 #endif
 
+
 bool pipeline::maybe_enable_center_on_tracking_started()
 {
     if (!tracking_started)
@@ -546,6 +547,9 @@ void pipeline::run()
     const MMRESULT mmres = timeBeginPeriod(1);
 #endif
 
+    setPriority(QThread::HighPriority);
+    setPriority(QThread::HighestPriority);
+
     {
         static const char* const posechannels[6] = { "TX", "TY", "TZ", "Yaw", "Pitch", "Roll" };
         static const char* const datachannels[5] = { "dt", "raw", "corrected", "filtered", "mapped" };