Hello everybody, i want to use the multithread core to read/write the shared memory, and all the thread should know the info of the shared memory. normally, we use the spin_lock,or read_lock, write_lock, but when we test the performance of our programm,we found that the lock result a very bad performance. so i need your help, if you have some experiences about this. every thread should konw the info of shared memory, but if we use signal, we still have to use the lock to make sure that one thread to write the memory . Thank you very much. sorry of my poor english. sno ___________________________________________________________ 进入雅虎游戏嘉年华,赢取液晶显示器! http://cn.mail.yahoo.com/promo/carnival07/ - To unsubscribe from this list: send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html