对于空闲块，该图还显示块的大小(单位为MB)。
For free chunks, the figure also shows the size of the chunk (in MB).
每当发生空间扩展时，需要更新关于空闲块的信息。
Whenever a space extension takes place, it is necessary to update the information about the free chunks.
图2显示包含3个原始设备的一组原始设备，这3个原始设备都既包括空闲块，又包含正在使用的块。
Figure 2 shows a sample set of three raw devices that contain both free chunks and chunks that are in use.
SQL存储过程在free_chunks表中搜索匹配的空闲块，并将该信息用于ADDchunk函数调用。
The SQL stored procedure searches for a matching free chunk in the free_chunks table and USES this information for the ADD chunk function call.
它是处理磁盘上的文件系统的基础，因为它定义文件系统的管理参数(例如，块的总数、空闲块和根索引节点)。
It provides the basis for dealing with the on-disk file system, as it defines the file system's managing parameters (for example, total number of blocks, free blocks, root index node).
RAWDEVSIZE程序分析可用原始设备，并将空闲块的偏移量、大小和路径信息存储到一个名为free_chunks的数据库表中。
The RAWDEVSIZE program analyzes available raw devices and stores the offset, size, and path information of free blocks into a database table named free_chunks.
最起码当我减少看电视剧的时间后它为我节省出一大块空闲时间。
当一个过程等待一个块设备数据请求完成时，它会增加 I/O等待时间，而所有空闲都会变成等待时间。
When a process waits for a block device data request to complete, it incurs I/O wait time, and all idle time becomes wait time.
将包含该分页的物理内存块标记为空闲，并为其它的分页做好重用的准备。
The physical memory block that contains the page is marked as free and ready for reuse for additional pages.
首先，删除空闲树中(大于或等于请求的块大小的)地址最低的节点。
First, the node from the free tree with the lowest address (which is greater than or equal to the requested block size) is removed.
在大部分系统中，malloc和free都不是可重入的，因为它们使用静态数据结构来记录哪些内存块是空闲的。
On most systems, malloc and free are not reentrant, because they use a static data structure that records which memory blocks are free.
endPoint记录最后一个内存块中第一个空闲字节的偏移位置。
The endPoint records the first free byte's offset location into the last memory block.
如清单6所示，df命令为您显示每个可用卷上已使用的块的总数，以及空闲空间的百分比。
As shown in Listing 6, the df command shows you the total number of blocks used on each available volume and the percentage of free space.
当从空闲池分配块时，首先使用以下公式把请求的字节数转换为bucket数组索引。
A block is allocated from the free pool by first converting the requested bytes to an index in the bucket array, using the following equation.
当DB 2碰到对mdc表的INSERT操作时，它寻找一个空闲的块。
When DB2 encounters an INSERT on an MDC table, it looks for a free block.
当把内存块返回给空闲池时，像分配时一样计算bucket索引。
When a block of memory is returned to the free pool, the bucket index is calculated just like it is done with allocation.
当选择其中一个space时，将显示该db - space的属性(dbspace号、名称、所有者、类型、块号、页大小和空闲空间)。
When one of the Spaces is selected, the properties of that DB-Space (dbspace number, name, owner, type, number of chunks, page size, total size, and free size) are displayed.
如果该分页没有经过修改，那么分页替换守护进程可以简单地将物理内存块标记为空闲，这样一来，就可以将该物理内存块重用于另一个分页。
If the page is unmodified, the page replacement daemon can simply mark the physical memory block as free, and the physical memory block can then be re-used for another page.
分配程序不能将空闲空间拼合为更大的内存块。
如果重新分配的块小于原来的块，那么把它分割开，多余的块返回给空闲树，请求的块返回给调用者。
If the size of the reallocated block is smaller than the original block, the block is split and the extra block is returned to the free tree with the required size block being returned to the caller.
把一些小的空闲内存结合成一个大的块。
Shuffle memory contents to place all free memory together in one large block.
看看你那边有什么能在这空闲的几个月里一块儿玩的运动队吧。
See what's in your area and what you can join for the few months you're free.
可以查看当前磁盘块的使用情况：哪些块空闲，哪些块被哪些文件占用。
You can view the current usage of disk blocks: which blocks free, which blocks are occupied by which files.
然后由操作系统处理，操作系统可能会寻找一块空闲内存，为它建立一个新的PTE，映射到被请求的虚拟地址。
The operating system then handles the situation, perhaps by trying to find a spare frame of ram and set up a new PTE to map it to the requested virtual address.
然后由操作系统处理，操作系统可能会寻找一块空闲内存，为它建立一个新的PTE，映射到被请求的虚拟地址。
The operating system then handles the situation, perhaps by trying to find a spare frame of ram and set up a new PTE to map it to the requested virtual address.
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