System call overhead 系统调用的开销
You must also consider the overhead of system call tracing.
您还需要考虑系统调用跟踪本身的开销。
Each interaction with the rest of the system invokes one or more system calls, and each call adds overhead.
与系统的其他部分之间的每个交互操作都会调用一个或多个系统调用，并且每次调用都会增加系统开销。
D-BUS is a lightweight yet powerful remote procedure call system with minimal overhead costs for the applications that wish to use it.
D - BUS是一个轻量级但是很强大的远程过程调用系统，为希望使用它的应用程序带来最小的开销代价。
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