摘要:
Per CPU Variables A CPU should not access the elements of the array corresponding to other CPU. 每个CPU拥有该变量的独立副本 无需加锁 - 由于每个CPU只操作自己的副本,因此读写自己的副本时不会产生竞 阅读全文
摘要:
cat /proc/cpuinfo check all processors ps -eaF the PSR shows process is runing on processor number preemption user space Under Linux, user-space progr 阅读全文
摘要:
he Global Descriptor Table (GDT) is a binary data structure specific to the IA-32 and x86-64 architectures. It contains entries telling the CPU about 阅读全文