Efficient data transfer through zero copy 1、The read() call causes a context switch (see Figure 2) from user mode to kernel mode. Internally a sys_read() (or equivalent) is issued to read the data from the file. The first copy (see Figure 1) is perf
Abstract Copy detection in Digital Libraries may provide the necessary guarantees for publishers and newsfeed ser¬vices to o~er valuable on-line data. We consider the case for a registration server that maintains regis¬tered documents against which
