UISIMULATOR: Trying to make it snappy for everyone. Remove forced thread yield in switch_thread which starves threads that call it alot especially on fast 64-bit machines (which could yield _alot_ of time away). I suspect that was a way to get I/O to run better before having an I/O thread...and it did help before that addition. No longer needed it seems and the OS seems to handle scheduling without hints just fine.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14685 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 1 insertions, 8 deletions

diff --git a/uisimulator/sdl/thread-sdl.c b/uisimulator/sdl/thread-sdl.c
index ea8bb39360..0bd7d2534e 100644
--- a/uisimulator/sdl/thread-sdl.c
+++ b/uisimulator/sdl/thread-sdl.c
@@ -225,17 +225,10 @@ void thread_sdl_unlock(void)
 
 void switch_thread(bool save_context, struct thread_entry **blocked_list)
 {
-    static int counter = 0;
     struct thread_entry *current = running;
 
     SDL_UnlockMutex(m);
-
-    if (counter++ >= 50)
-    {
-        SDL_Delay(0);
-        counter = 0;
-    }
-
+    /* Any other thread waiting already will get it first */
     SDL_LockMutex(m);
     running = current;