Two Methods Two methods to support threads o User threads VS.Kernel threads O Kernel Threads Supported by the Kernel,usually may be slower then user thread Examples Windows XP/2000 ★Solaris ★Linux Tru64 UNIX(formerly Digital UNIX) ★Mac OS X 口18走卡11月00 陈话兰xlanchen@ustc.edu:cn http/staff.u0117401 Operating System操作系统原理斐 March29,201910/44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Two Methods Two methods to support threads User threads VS. Kernel threads 2 Kernel Threads ▶ Supported by the Kernel, usually may be slower then user thread ▶ Examples ⋆ Windows XP/2000 ⋆ Solaris ⋆ Linux ⋆ Tru64 UNIX (formerly Digital UNIX) ⋆ Mac OS X 陈香兰 xlanchen@ustc.edu.cn http://staff.ustc.edu.cn/~xlanchen (Computer Application Laboratory, CS, USTC @ Hefei Embedded System Laboratory, CS, USTC @ Suzhou) 0117401: Operating System 操作系统原理与设计 March 29, 2019 10 / 44