英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：


请选择你想看的字典辞典：
单词字典翻译
spinlocks查看　spinlocks　在百度字典中的解释百度英翻中〔查看〕
spinlocks查看　spinlocks　在Google字典中的解释Google英翻中〔查看〕
spinlocks查看　spinlocks　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • spinlock - What exactly are spin-locks? - Stack Overflow
    Spinlocks don't cause preemption but wait in a loop ("spin") till the other core releases the lock This prevents the thread from losing its quantum, and it continues as soon as the lock gets released
  • When should one use a spinlock instead of mutex?
    When using spinlocks instead, threads get the chance to take advantage of their full runtime quantum (always only blocking for a very short time period, but then immediately continue their work), leading to much higher processing throughput
  • What is a spinlock in Linux? - Unix Linux Stack Exchange
    So spinlocks tend to be used in situations where they will remain held for a very short time, so that most attempts are expected to succeed on the first try, and those that need a wait don't wait long There is a good explanation of spinlocks and other concurrency mechanisms of the Linux kernel in Linux Device Drivers, chapter 5
  • c# - Spinlocks, How Useful Are They? - Stack Overflow
    It depends on what you're doing In general application code, you'll want to avoid spinlocks In low-level stuff where you'll only hold the lock for a couple of instructions, and latency is important, a spinlock mat be a better solution than a lock But those cases are rare, especially in the kind of applications where C# is typically used
  • c++ - Spinlock versus Semaphore - Stack Overflow
    Spinlock and semaphore differ mainly in four things: 1 What they are A spinlock is one possible implementation of a lock, namely one that is implemented by busy waiting ("spinning") A semaphore is a generalization of a lock (or, the other way around, a lock is a special case of a semaphore) Usually, but not necessarily, spinlocks are only valid within one process whereas semaphores can be
  • Difference between Mutex, Semaphore Spin Locks
    4) And now, talking about 'spinlocks', first some definitions: Critical Region= A region of memory shared by 2 or more processes Lock= A variable whose value allows or denies the entrance to a 'critical region' (It could be implemented as a simple 'boolean flag') Busy waiting= Continuosly testing of a variable until some value appears Finally:
  • Why spinlocks are used in interrupt handlers - Stack Overflow
    Semaphores cause tasks to sleep on contention, which is unacceptable for interrupt handlers Basically, for such a short and fast task (interrupt handling) the work carried out by the semaphore is overkill Also, spinlocks can't be held by more than one task
  • Guidelines for the use of critical sections and spinlocks to share . . .
    Spinlocks normally are not appropriate for single-processor systems because the condition that would break a process out of the spinlock can be obtained only by executing a different process Thus, busy-waiting on a lock that won't be released until the busy-wait finishes and the context is switched, makes no sense
  • Why are spin locks good choices in Linux Kernel Design instead of . . .
    7 I understand that Spinlocks are real waste in Linux Kernel Design I would like to know why is it like spin locks are good choices in Linux Kernel Design instead of something more common in userland code, such as semaphore or mutex?
  • Why are pthread spinlocks so much faster than mutexes?
    3 Why are pthread spinlocks so much faster than mutexes? Marco has described several good reasons for the specific performance difference you observed, but he didn't make one important observation: the relative timing of your spinlock version vs your mutex + cv version is meaningless because these are not equivalent to each other





中文字典-英文字典  2005-2009