摘要：
Page Hits： CPU reads a word of virtual memory which is cached in DRAM. Page Faults（缺页）： 流程： 术语： Virtual memory systems use a different terminology fro 阅读全文
摘要：
Synchronizing Flows to Avoid Nasty Concurrency Bugs an example code: void handler(int sig) { pid_t pid; while ((pid = waitpid(-1, NULL, 0)) > 0) /* Re 阅读全文