os: inputthread: remove the function AdjustThreadScheduling

We may want to use this later but git can easily bring back for us.

Signed-off-by: Fernando Carrijo <fcarrijo@yahoo.com.br>
Signed-off-by: Tiago Vignatti <tiago.vignatti@nokia.com>

1 files changed, 0 insertions, 38 deletions

diff --git a/os/inputthread.c b/os/inputthread.c
index 2e4628294..be2d9de7e 100644
--- a/os/inputthread.c
+++ b/os/inputthread.c
@@ -80,42 +80,6 @@ AddEnabledDeviceThreaded(int fd, void (*f)(void *), void *closure)
 }
 
 /*
- * Input events routed through another thread/process can have bad effects on
- * latency because we can't guarantee that it will get scheduled at the right
- * moment. Although this is hard to see happening with the current
- * implementation, we must design something to avoid it. One way to improve
- * the responsiveness is to give a high priority to the input thread and also
- * adjust the CPU scheduling.
- * A detailed discussion can be found here:
- *     http://vignatti.wordpress.com/2008/08/07/priorities-and-scheduling-hints-for-x-server-threads/
- *
- * TODO: incorporate this with cgroup, a feature which allows to limit the
- * amount of CPU time real-time processes and threads may consume.
- */
-#if 0
-static void
-AdjustThreadScheduling(int tid)
-{
-    struct  sched_param param;
-    int policy = SCHED_FIFO;
-
-
-    pthread_t p_tid = pthread_self();
-
-    param.sched_priority = sched_get_priority_max(policy);
-
-    if (pthread_setschedparam(p_tid, policy, &param) != 0)
-        perror("error setting thread scheduling");
-
-#ifdef THREAD_DEBUG
-    sched_getparam(tid, &param);
-    ErrorF("thread %d: policy: %d, priority: %d\n", tid,
-           sched_getscheduler(tid_generation), param.sched_priority);
-#endif
-}
-#endif
-
-/*
  * @return exit code for the child process which currently is none. The child
  * process exits only when the main thread (parent) send a signal or a
  * fatal error occurs.
@@ -130,8 +94,6 @@ WaitForInput(void* argument)
 
     tid_generation = syscall(__NR_gettid);
 
-    /* AdjustThreadScheduling(tid_generation); */
-
     FD_ZERO(&InputDevices);
 
     /* The "communication channel" between the input and main thread */