BitTorrent's file fragmentation problem
When BitTorrent receives a file, it gets the various chunks out of order, generally in a completely randomone. This presents the client with the problem of putting them inorder and in place.
I believe that historically there have been three approaches to dealwith this. The very first BitTorrent clients did it the simple way:they put every received block in its correct place by seeking to thatspot and writing the block out. The problem with this was horrible filefragmentation (resulting in terrible sequential read performance);
今日無feel
(開市:13,298;收市:12,915;低見12,676)
昨晚道指雖然升151點,但相信是少少技術性+少少妄想性樂觀的結果。
今天恒指頂多
敵友
什麼叫敵人?誰又是朋友?
喜歡搬弄是非和搞小動作的人走到任何地方都在樹敵,這其實是天性,世界上就是會有這樣的人種。然而有時候,朋友比敵人傷得你更深,你搞不清他們是不是故意的,但那種難過是會讓你感到交錯了
徵友廣告
- 1.8M
- 70Kg
- IT company Executive Director
- MBA, FHKIoD
- fashionable, artistic & professional
- Smoke and Drink.... but not playboy
- looking for long term life partner
- romantic type..
Where vi runs into its limits
Despite the fact that I use vi a fair bit , I feel that it has definite limits thatmake it not my favorite editor. For me, vi's main limits are two-fold.
First, it doesn't use graphics effectively, and I believe that itcan't; the core of vi, what makes it vi and not some other editor, isfundamentally screen oriented. You can make vi display graphicallyinstead of in a terminal window, but I don't think that you can
賭徒心態
因為短期在玩波幅,大市未見底,但又不敢“瞓身”沽期指;入貨又不是時候,所以在短炒、day trade。不過放心,我的exposure其實不大,有分數,有分寸。
昨天沽$740的期金在$7
料事如神
話說我有一位朋友在學車,上星期日我跟他吃飯。
他跟我說:喂,我學車師傅話最近收了個學生,是香港小姐,原來是你個"friend"!
我:系?那你叫你師傅小心上鏡。
他:下,學車都要夾新聞?有什麽好夾
精神崩潰
