* Added optional spinlock contention measurement feature. Enabled when

B_DEBUG_SPINLOCK_CONTENTION is defined to 1. It typedefs spinlock to a
  structure (thus breaking BeOS binary compatibility), containing a
  counter which is incremented whenever a thread has to wait for the
  spinlock.
* Added macros for spinlock initialization and access and changed
  code using spinlocks accordingly. This breaks compilation for BeOS --
  the macros should be defined in the respective compatibility wrappers.
* Added generic syscall to get the spinlock counters for the thread and
  the team spinlocks.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@25752 a95241bf-73f2-0310-859d-f6bbb57e9c96

This commit is contained in:

Ingo Weinhold

2008-06-02 02:04:12 +00:00

parent e78b56aaf7

commit 1c8de8581b

33 changed files with 179 additions and 44 deletions

									
										src/system/kernel/thread.cpp
									
		+1
		-1
	
												View File
												
				@@ -60,7 +60,7 @@ struct thread_key {

				};

				// global

				spinlock thread_spinlock = 0;

				spinlock thread_spinlock = B_SPINLOCK_INITIALIZER;

				// thread list

				static struct thread sIdleThreads[B_MAX_CPU_COUNT];