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Changed SPINLOCK_PROFILE back to #if so that defining SPINLOC_PROFILE 0 turns

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off the profilign of spinlocks
This commit is contained in:
Mark Riddoch 2014-09-15 09:38:58 +01:00
parent bc320d1514
commit fb4f74ed61
2 changed files with 9 additions and 9 deletions
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14
server/core/spinlock.c
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@ -40,7 +40,7 @@ void
spinlock_init(SPINLOCK *lock)
{
lock->lock = 0;
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
lock->spins = 0;
lock->acquired = 0;
lock->waiting = 0;
@ -57,7 +57,7 @@ spinlock_init(SPINLOCK *lock)
void
spinlock_acquire(SPINLOCK *lock)
{
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
int spins = 0;
atomic_add(&(lock->waiting), 1);
@ -65,12 +65,12 @@ int spins = 0;
while (atomic_add(&(lock->lock), 1) != 0)
{
atomic_add(&(lock->lock), -1);
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
atomic_add(&(lock->spins), 1);
spins++;
#endif
}
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
if (spins)
{
lock->contended++;
@ -97,7 +97,7 @@ spinlock_acquire_nowait(SPINLOCK *lock)
atomic_add(&(lock->lock), -1);
return FALSE;
}
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
lock->acquired++;
lock->owner = THREAD_SHELF();
#endif
@ -112,7 +112,7 @@ spinlock_acquire_nowait(SPINLOCK *lock)
void
spinlock_release(SPINLOCK *lock)
{
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
if (lock->waiting > lock->max_waiting)
lock->max_waiting = lock->waiting;
#endif
@ -135,7 +135,7 @@ spinlock_release(SPINLOCK *lock)
void
spinlock_stats(SPINLOCK *lock, void (*reporter)(void *, char *, int), void *hdl)
{
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
reporter(hdl, "Spinlock acquired", lock->acquired);
if (lock->acquired)
{

4
server/include/spinlock.h
View File

@ -45,7 +45,7 @@
*/
typedef struct spinlock {
int lock; /*< Is the lock held? */
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
int spins; /*< Number of spins on this lock */
int maxspins; /*< Max no of spins to acquire lock */
int acquired; /*< No. of times lock was acquired */
@ -63,7 +63,7 @@ typedef struct spinlock {
#define FALSE false
#endif
#if defined(SPINLOCK_PROFILE)
#if SPINLOCK_PROFILE
#define SPINLOCK_INIT { 0, 0, 0, 0, 0, 0, 0, 0 }
#else
#define SPINLOCK_INIT { 0 }