1、os_unfair_lock
//
// HHLockViewController.m
// MideaTechnologyStack
//
// Created by huocy on 2021/9/3.
//
#import "HHLockViewController.h"
#import
#import
#import
#import
@interface HHLockViewController ()
///os_unfair_lock
@property (nonatomic)os_unfair_lock unfair_lock;
@property (nonatomic,strong) NSLock *lock;
///信号量
@property (nonatomic) dispatch_semaphore_t semaphore;
@property (nonatomic) pthread_mutex_t mutex;
@property (nonatomic,strong) NSMutableArray *times;
@end
@implementation HHLockViewController
{
NSMutableArray *_synchronizedArray;
NSMutableArray *_lockArray;
NSMutableArray *_os_unfair_lockArray;
NSMutableArray *_semaphoreArray;
NSMutableArray *_pthreadArray;
NSMutableArray *_mutexArray;
NSMutableArray *_conditionLockArray;
NSMutableArray *_recursiveLockArray;
NSMutableArray *_spinLockUnlockArray;
}
- (instancetype)init{
if (self = [super init]) {
_synchronizedArray = [NSMutableArray array];
_lockArray = [NSMutableArray array];
_os_unfair_lockArray = [NSMutableArray array];
_semaphoreArray = [NSMutableArray array];
_pthreadArray = [NSMutableArray array];
_mutexArray = [NSMutableArray array];
_conditionLockArray = [NSMutableArray array];
_recursiveLockArray = [NSMutableArray array];
_spinLockUnlockArray = [NSMutableArray array];
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
//信号量初始化
self.semaphore = dispatch_semaphore_create(1);
//苹果废弃的自旋锁
loopsLock = OS_SPINLOCK_INIT;
//苹果替代原有废弃的自旋锁
self.unfair_lock = OS_UNFAIR_LOCK_INIT;
//NSLock
self.lock = [[NSLock alloc] init];
//phtread
pthread_mutex_init (&_mutex, NULL);
//1、 os_unfair_lock
[self os_unfair_lock];
//2、NS_lock
[self NS_lock];
//3、信号量
[self dispatch_semaphore_t];
//4 、synchronized
[self synchronized];
//5、 p_thread
[self p_thread];
//6 、OSSpinLock
[self OSSPinLockS];
}
///os_unfair_lock
-(void)os_unfair_lock{
CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent();
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_os_unfair_lock];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s1 时间 == %f ms",_cmd,linkTime);
});
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_os_unfair_lock];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s2 时间 == %f ms",_cmd,linkTime);
});
}
- (HHLockModel *)taskNS_os_unfair_lock{
os_unfair_lock_lock(&_unfair_lock);
HHLockModel *model = [[HHLockModel alloc] init];
model.lockName = @"taskNS_os_unfair_lock";
[_os_unfair_lockArray addObject:model];
os_unfair_lock_unlock(&_unfair_lock);
return model;
}
打印结果
2021-09-06 18:37:23.878622+0800 [57682:24014145] os_unfair_lock1 时间 == 0.000302 ms
2021-09-06 18:37:23.878689+0800 [57682:24014334] os_unfair_lock2 时间 == 0.000311 ms
2、NSLock
///lock
-(void)NS_lock{
CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent();
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_lock];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s1 时间 == %f ms",_cmd,linkTime);
});
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_lock];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s2 时间 == %f ms",_cmd,linkTime);
});
}
- (HHLockModel *)taskNS_lock{
[self.lock lock];
HHLockModel *model = [[HHLockModel alloc] init];
model.lockName = @"NSLock";
[_lockArray addObject:model];
[self.lock unlock];
return model;
}
打印结果
2021-09-06 18:37:23.878446+0800 [57682:24014330] NS_lock1 时间 == 0.000142 ms
2021-09-06 18:37:23.878495+0800 [57682:24014331] NS_lock2 时间 == 0.000186 ms
3、dispatch_semaphore_t
///GCD信号量
-(void)dispatch_semaphore_t{
CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent();
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_dispatch_semaphore_signal];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s1 时间 == %f ms",_cmd,linkTime);
});
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_dispatch_semaphore_signal];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s2 时间 == %f ms",_cmd,linkTime);
});
}
- (HHLockModel *)taskNS_dispatch_semaphore_signal{
dispatch_semaphore_wait(self.semaphore, DISPATCH_TIME_FOREVER);
HHLockModel *model = [[HHLockModel alloc] init];
model.lockName = @"dispatch_semaphore_t";
[_semaphoreArray addObject:model];
dispatch_semaphore_signal(self.semaphore);
return model;
}
打印结果
2021-09-06 18:37:23.878551+0800 [57682:24014332] dispatch_semaphore_t1 时间 == 0.000235 ms
2021-09-06 18:37:23.878604+0800 [57682:24014333] dispatch_semaphore_t2 时间 == 0.000261 mss
4、synchronized
//@synchronized
-(void)synchronized{
NSMutableArray *array = [NSMutableArray array];
CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent();
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
id obj = [self taskSynchronized];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s1 时间 == %f ms",_cmd,linkTime);
_times[3] = @(linkTime *1000000);
[barChart updateChartData:_times];
});
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
id obj = [self taskSynchronized];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s2 时间 == %f ms",_cmd,linkTime);
});
}
- (HHLockModel *)taskSynchronized{
@synchronized (self) {
HHLockModel *model = [[HHLockModel alloc] init];
model.lockName = @"@synchronized";
[_synchronizedArray addObject:model];
return model;
}
}
打印结果
2021-09-06 18:37:23.878376+0800 [57682:24014322] synchronized1 时间 == 0.000083 ms
2021-09-06 18:37:23.878396+0800 [57682:24014145] synchronized2 时间 == 0.000112 ms
5、p_thread
-(void)p_thread{
NSMutableArray *array = [NSMutableArray array];
CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent();
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_pthreadLock];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s1 时间 == %f ms",_cmd,linkTime);
_times[4] = @(linkTime * 1000000);
dispatch_async(dispatch_get_main_queue(), ^{
[barChart updateChartData:_times];
});
});
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_pthreadLock];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s2 时间 == %f ms",_cmd,linkTime);
});
}
- (HHLockModel *)taskNS_pthreadLock{
pthread_mutex_lock(&_mutex); /*获取互斥锁*/
HHLockModel *model = [[HHLockModel alloc] init];
model.lockName = @"p_thread";
pthread_mutex_unlock(&_mutex);
return model;
}
打印结果
2021-09-06 18:37:23.878653+0800 [57682:24014330] p_thread2 时间 == 0.000327 ms
2021-09-06 18:37:23.878667+0800 [57682:24014331] p_thread1 时间 == 0.000332 ms
6、OSSPinLock
-(void)OSSPinLockS{
NSMutableArray *array = [NSMutableArray array];
CFAbsoluteTime startTime = CFAbsoluteTimeGetCurrent();
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_OSSPinLockS];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s1 时间 == %f ms",_cmd,linkTime);
});
dispatch_async(dispatch_get_global_queue(0,0), ^{
for (int i = 0 ; i<100; i++) {
[self taskNS_OSSPinLockS];
}
CFAbsoluteTime linkTime = (CFAbsoluteTimeGetCurrent() - startTime);
NSLog(@"%s2 时间 == %f ms",_cmd,linkTime);
});
}
- (HHLockModel *)taskNS_OSSPinLockS{
OSSpinLockLock(&loopsLock);
HHLockModel *model = [[HHLockModel alloc] init];
model.lockName = @"OSSPinLockS";
[_os_unfair_lockArray addObject:model];
OSSpinLockUnlock(&loopsLock);
return model;
}
打印结果
2021-09-06 18:37:23.878775+0800 [57682:24014332] OSSpinLockUnlock2 OSSPinLockS 时间 == 0.000432 ms
2021-09-06 18:37:23.878775+0800 [57682:24014337] OSSpinLockUnlock1 OSSPinLockS 时间 == 0.000423 ms
end 总结
2021-09-06 18:37:23.878376+0800 [57682:24014322] synchronized1 时间 == 0.000083 ms
2021-09-06 18:37:23.878396+0800 [57682:24014145] synchronized2 时间 == 0.000112 ms
2021-09-06 18:37:23.878446+0800 [57682:24014330] NS_lock1 时间 == 0.000142 ms
2021-09-06 18:37:23.878495+0800 [57682:24014331] NS_lock2 时间 == 0.000186 ms
2021-09-06 18:37:23.878551+0800 [57682:24014332] dispatch_semaphore_t1 时间 == 0.000235 ms
2021-09-06 18:37:23.878604+0800 [57682:24014333] dispatch_semaphore_t2 时间 == 0.000261 ms
2021-09-06 18:37:23.878622+0800 [57682:24014145] os_unfair_lock1 时间 == 0.000302 ms
2021-09-06 18:37:23.878653+0800 [57682:24014330] p_thread2 时间 == 0.000327 ms
2021-09-06 18:37:23.878667+0800 [57682:24014331] p_thread1 时间 == 0.000332 ms
2021-09-06 18:37:23.878689+0800 [57682:24014334] os_unfair_lock2 时间 == 0.000311 ms
2021-09-06 18:37:23.878775+0800 [57682:24014332] OSSpinLockUnlock2 OSSPinLockS 时间 == 0.000432 ms
2021-09-06 18:37:23.878775+0800 [57682:24014337] OSSpinLockUnlock1 OSSPinLockS 时间 == 0.000423 ms