获取或设置已颁发令牌的最大缓存时间。
同样，如果您把缓存时间放进数据库中，那么您就可以在运行时更改缓存时间。
Also, if you put the cache time data into a database, you can then change the cache time at run time.
一旦模板是动态〔应该不难理解〕的，哪些文档你加了缓存，缓存时间多长都是很重要的。
Since templates are dynamic, it is important to be careful what you are caching and for how long.
在接下来的页面上，输入提要标题和描述，以及其他属性，例如公共或私有访问、搜索关键词标签或缓存时间。
On the next page, enter the feed title and description along with other properties, like public or private access, any search keyword tags, or cache times.
注：世界各地内的图像缓存时间最长可达4个小时，所以如果需要更新现有图像，请记住这一点。
Note: Images may be cached worldwide for up to 4 hours. If updating an existing image, please keep this in mind.
使用EPPS，您可以定义默认的缓存时间，也可以为单独的对象定义特定的缓存时间，根据业务逻辑需求来选择缓存。
With the EPPS, you can define a default cache time and specific cache times for individual objects, to meet caching requirements based on business logic.
如果您使用上面的机制，该portlet在缓存时间内将一直返回相同的内容。该内容只有在缓存数据过期的时候才会被更新。
If you used the mechanism above, the portlet would always return the same content during the cache time, and the content would only be updated whenever the cache data expires.
在考虑预加载时，节省试图重新创建缓存的时间和精力将是一个设计目标。
Saving yourself the time and effort in trying to recreate the cache should be a design goal when preloading is being considered.
该变量用于指定在服务器移除用户条目之前，它们留在缓存中的时间长度。
This variable is used to specify the length of time that user entries remain in the cache before the server removes them.
浏览器缓存—浏览器会缓存DNS记录一段时间。
Browser cache - The browser caches DNS records for some time.
缓存api的设计目的是为了将数据缓存较长的一段时间，或者缓存至满足某些条件时，但每请求缓存则意味着只将数据缓存为该请求的持续时间。
Whereas the cache API is designed to cache data for a long period or until some condition is met, per-request caching simply means caching the data for the duration of the request.
通过在DML更新前清除会话缓存，我们将时间缩短到了4分钟，全部都是将数据加载到会话缓存中花费的时间。
By clearing the session cache before DML update, we cut the time to about 4 minutes, all of which is needed by the data loading into the session cache.
填充新缓存导致的启动时间开销(在本文后面讨论)并不显著，因为每个类只需在定义时重新定位到缓存中。
Startup time overhead to populate a new cache (which I discuss later in this article) is not significant, as each class simply needs to be relocated into the cache as it is defined.
该变量用于设置清除缓存的时间间隔；默认值为60。
This variable is used to set the time interval for cache cleaning; the default value is 60.
对于我使用的任何网站，它是我确保存在的一项内容，因为性能影响很大（很多时候有了操作码缓存，响应时间可减少一半）。
For any website I work with, it's the one thing I make sure is present, since the performance impact is huge (many times with response times half of what they are without an opcode cache).
设置缓存元素的超时时间，以秒为单位。
Sets the expiration timeout in seconds of the cached elements.
这是从近缓存中检索对象所需的时间。
This is the time that it takes to retrieve an object from the near cache.
会创建一个新的缓存，所以这次运行显示了填充新缓存所花费的时间。
A new cache is created, so this run shows you the time it takes to populate the new cache.
我们已经利用HTTP缓存节约了带宽和计算时间！
We have saved bandwidth and computation cycles by taking advantage of HTTP caching!
JSR 168规范定义了一个通用缓存过期时间值，Portlet可以在呈现期间随时自行进行设置。
The JSR 168 specification defines a general cache expiration time value that a portlet may set itself at any time during rendering.
它比write - through缓存具有更快的响应时间，后者对缓存的更新会导致对数据库的及时更新。
This scenario also has faster response times than the write-through caching scenario where an update to the cache results in an immediate update to the database.
expires——远程缓存的缓存过期时间(以秒为单位)，只针对未经身份验证的用户。
Public.expires — the cache expiration time (in seconds) for remote caches and for unauthenticated pages only.
Tr是从远缓存中检索对象所用的时间。
Tr is the retrieval time for an object in the remote cache. This is dependent on.
Timeout：必须将项目从缓存中逐出的时间值(以毫秒为单位)。
Timeout: The value (measured in milliseconds) after which an item has to be evicted from cache.
您可以选择Resume 以恢复AlphabloxCubeCaching服务，并指定刷新多维数据集缓存的时间和频率，如图11 所示。
You can select to Resume the Alphablox Cube Caching service and specify how often and when to refresh the cube cache, as shown in Figure 11.
清单5显示了在呈现时发布缓存过期时间和缓存作用域的标准Portlet的片段。
Listing 5 shows a fragment of a standard portlet that publishes the cache expiration time and cache scope at render time.
计算过程通常就是对缓存作用域和缓存过期时间均使用最小值，以确保以下事项。
The general idea for the calculation is to use the minimum for both cache scope and cache expiration time to make sure that.
文件系统驱动程序更新适当的元数据，但是没有时间将其缓存中的数据刷新到磁盘的新块中。
The filesystem driver updated the appropriate metadata, but didn't have time to flush the data from its caches to the new blocks on disk.
文件系统驱动程序更新适当的元数据，但是没有时间将其缓存中的数据刷新到磁盘的新块中。
The filesystem driver updated the appropriate metadata, but didn't have time to flush the data from its caches to the new blocks on disk.
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