Some keep a copy of the data in all applications — both memory and swap space.
有些变体保留所有应用程序中的数据副本——同时包括内存和交换空间中的应用程序。
Otherwise, it's just storing in memory a duplicate copy of the POST data, which isn't needed.
否则，它仅在内存中存储POST数据的一个副本，而这没有必要。
After analyzing the test data, it concludes that the performance of Ethernet adapter driver is improved by both optimizing the memory copy and adopting the zero copy technique.
通过测试数据分析得出优化内存拷贝和使用零拷贝技术都能提高网卡驱动程序的性能。
A better solution is a two-pass scan of the buffer: the first pass simply computes the length of the new buffer, after which we allocate the memory and copy the data with the required replacements.
一个更好的解决办法是对内存区的两段扫描：第一段只是计算新内存区的长度，随后我们分配内存和拷贝带有需要的替换的数据。
When the CPU reads data from main memory, a copy of this data is stored in the cache memory.
当CPU从主内存中读取数据时，一份数据拷贝将被存储在高速缓存中。
To reduce the times of memory data is copied the one time copy technique is adopted;
采用了一次拷贝技术来减少数据包在内存中被拷贝的次数；
Threads can have their own copy of data for variables, and the thread copy can be different from the "main" memory.
每个线程可以有它自己的变量拷贝，而这个变量拷贝值可以和“主”内存区域里存放的不同。
After the data has been verified, a copy scratchpad command will transfer the data to the secure memory.
数据被校验确认后，发出复制暂存器命令，以便将数据传送到存储器。
Now using "zero copy" to improve this process: When the net card will catch the data packet later directly to write about the sharing memory, such treating processes reduced at least duplication.
利用“零存储”技术对传统的抓包过程进行改进：当网卡抓到数据包以后直接写到共享内存，这样的一个处理过程减少了至少一次复制。
Absrtact: in traditional data capture system, the date's copy in the memory spents huge expenses, which seriously affects the system's performance.
摘要：在传统的数据包捕获系统中，数据在内存中的拷贝花费了巨大的开销，严重影响了捕包系统的性能。
Absrtact: in traditional data capture system, the date's copy in the memory spents huge expenses, which seriously affects the system's performance.
摘要：在传统的数据包捕获系统中，数据在内存中的拷贝花费了巨大的开销，严重影响了捕包系统的性能。
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