下面是一个简单的示例代码，用于比较std::atomic_load和std::atomic_store与std::lock_guardstd::mutex之间的性能开销：
”`cpp
#include
std::atomic
// 使用 std::atomic_load 和 std::atomic_store 进行并发访问 void atomicAccess() {
for (int i = 0; i < 100000; ++i)
{
int value = std::atomic_load(&sharedData, std::memory_order_relaxed);
std::this_thread::yield(); // 模拟其他线程操作
value += 1;
std::atomic_store(&sharedData, value, std::memory_order_relaxed);
}
}
// 使用 std::lock_guardstd::mutex 进行并发访问 void mutexAccess() {
for (int i = 0; i < 100000; ++i)
{
std::lock_guard<std::mutex> lock(mutex);
int value = sharedData;
std::this_thread::yield(); // 模拟其他线程操作
value += 1;
sharedData = value;
}
}
int main() {
auto startAtomic = std::chrono::high_resolution_clock().now();
atomicAccess();
auto endAtomic = std::chrono::high_resolution_clock().now();
auto startMutex = std::chrono:<br/><br/><br/><font size=1 color=#CCCCCC>内容由零声教学AI助手提供，问题来源于学员提问</font>
![/data # iw --debug dev wlan0 connect -w "lucky-5g" auth open key 0:1234567890
Usage: iw [options] dev connect [-w] [] [] [auth open|shared] [key 0:abcde d:1:6162636465] [mfp:req/opt/no]
Join the network with ...](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162239148267954.png)
![驱动代码
void kalRxTaskletSchedule(struct GLUE_INFO *pr)
{
static unsigned int num = 0;
tasklet_hi_schedule(&pr->rRxTask[(num++)%NR_CPUS]);
// tasklet_hi_schedule(&pr->rRxTask);
DBGLOG(HAL, ERROR,](https://linuxcpp.0voice.com/zb_users/upload/2023/05/202305162226144313964.png)
