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Clean up some of the threading code

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Justine Tunney 2022-09-08 11:54:56 -07:00
parent 0547eabcd6
commit 9f963dc597
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GPG key ID: BE714B4575D6E328
62 changed files with 175 additions and 582 deletions
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15
libc/intrin/pthread_mutex_lock.c
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@ -24,7 +24,6 @@
#include "libc/intrin/atomic.h"
#include "libc/intrin/futex.internal.h"
#include "libc/intrin/pthread.h"
#include "libc/intrin/spinlock.h"
#include "libc/linux/futex.h"
#include "libc/nexgen32e/threaded.h"
#include "libc/sysv/consts/futex.h"
@ -85,20 +84,6 @@ static int pthread_mutex_lock_spin(pthread_mutex_t *mutex, int expect,
* // do work...
* pthread_mutex_unlock(&lock);
*
* Microbenchmarks for single-threaded lock + unlock:
*
* pthread_spinlock_t : 12c ( 4ns)
* PTHREAD_MUTEX_NORMAL : 37c ( 12ns)
* PTHREAD_MUTEX_RECURSIVE : 22c ( 7ns)
* PTHREAD_MUTEX_ERRORCHECK : 27c ( 9ns)
*
* Microbenchmarks for multi-threaded lock + unlock:
*
* pthread_spinlock_t : 2,396c (774ns)
* PTHREAD_MUTEX_NORMAL : 535c (173ns)
* PTHREAD_MUTEX_RECURSIVE : 1,045c (338ns)
* PTHREAD_MUTEX_ERRORCHECK : 917c (296ns)
*
* @return 0 on success, or error number on failure
* @see pthread_spin_lock()
*/