In the parallel network server, Process pool often been used to avoid the cost of system from create and delete a Process. It work as this: The server create some processes, all the processes accepted to get jucture, because there are no request, all the processes sleep. When n request come, all the processes will be waken up, but only n processes will response this request, other processes sleep again, this phenomenon is called "Stampeding". This phenomenon bring a problem: because there are so many processes wake up at the same time, it needs more cost of system to schedule these processes. At the same time, if the processes in the process pool is too few to the number of request, additional processes should be created, and this needs much cost of system. So it need to control the num of processes in the process pool, if it small than a number then some process should be created, and if it large than a number then some processes should be deleted.-_-

• 555555555555555 (3) xwbsw 2007-10-07 14:29:53
• Re:题目改了 怎么不说一声??!! (0) ichoyb 2007-10-07 16:03:37
• 正式赛能不能用标准英语写题目描述啊？读题读的快崩溃了…… (970) ShadowWalker 2007-10-07 16:31:35
  • 终于明白你们什么意思了…… (0) frkstyc 2007-10-07 16:37:45
  • ^-^ (0) sharang 2007-10-07 16:41:35
    • aiai....不能这样的…… (0) frkstyc 2007-10-07 16:42:34
  • 其实在自己国家比赛用本国语言比较好，没必要非得弄英文。 (0) dujialun 2007-10-07 16:59:21
    • 搞清楚了，这个不是中国的比赛 (0) frkstyc 2007-10-07 17:17:10
  • Re:正式赛能不能用标准英语写题目描述啊？读题读的快崩溃了…… (19) woodfish 2007-10-07 19:14:04
    • hehe.. (23) frkstyc 2007-10-07 19:16:26
    • ........................... (23) crazyb0y 2007-10-07 19:18:36
• Re:尤其是G题，太强了。 (970) nwmstu 2007-10-08 00:08:28
• ＪＬＵ　的　Ｇ　题.... 无语中... (89) nwmstu 2007-10-08 00:11:34