`getblk`函数通过`b_count == 0`找到空闲缓冲块(未被引用),但在获取锁(如`wait_on_buffer`)的过程中,其他进程可能抢占该缓冲块并修改`b_count`。例如: - 进程A释放缓冲块,`b_count`减到0。 - 进程B申请该缓冲块,但在调用`wait_on_buffer`等待锁时被阻塞。 - 进程C可能在此期间
EPD Says to Wait on Water Buffer Revisions; Supreme Court May Have Final Say about Land around Water BodiesByline: Walter C. Jones ATLANTA | The director of the Environmental Protection Division...Jones, Walter C
If this CommandBuffer is executed using Graphics.ExecuteCommandBufferAsync or ScriptableRenderContext.ExecuteCommandBufferAsyn then the queue on which the command buffer has been executed will wait.On platforms which do not support GraphicsFences, this call does nothing see: SystemInfo.supportsGraphics...
CommandBuffer.WaitOnGPUFence public void WaitOnGPUFence (Rendering.GPUFence fence, Rendering.SynchronisationStage stage); パラメーター fence The GPUFence that the GPU will be instructed to wait upon. stage On some platforms there is a significant gap between the vertex processing completing and...
The issue was first fixed in the following cumulative update of SQL Server. After you apply this hotfix, SQL Server takes the database offline when you hit the issue (instead of waiting indefinitely on WRITELOG or LOGBUFFER),...
A spike in "cursor: pin S wait on X" ,"library cache lock" or "latch: shared pool" waits may be seen. This is more likely to be seen in an OLTP environment where both shared pool and buffer cache are in demand. The problem will happen randomly and intermittently. In extreme ...
A method includes: determining, by a first device including a processor, information associated with one or more defined parameters; and generating a buffer wait time based on the information, wherein the information is associated with at least one of an entity for which buffering of content ...
The issue was first fixed in the following cumulative update of SQL Server. After you apply this hotfix, SQL Server takes the database offline when you hit the issue (instead of waiting indefinitely on WRITELOG or LOGBUFFER), the database can be brought back online without rest...
The issue was first fixed in the following cumulative update of SQL Server. After you apply this hotfix, SQL Server takes the database offline when you hit the issue (instead of waiting indefinitely on WRITELOG or LOGBUFFER),...