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Java并发新构件之PriorityBlockingQueue
An unbounded blocking queue that uses the same ordering rules as class PriorityQueue and supplies blocking retrieval operations.?While this queue is logically unbounded, attempted additions may fa...
分类:编程语言   时间:2015-10-17 17:55:33    阅读次数:335
转: css的repaint和reflow
浏览器为了重新渲染部分或整个页面,重新计算页面元素位置和几何结构(geometries)的进程叫做 reflow。由于 reflow 是一种浏览器中的用户拦截(user-blocking)操作,所以了解如何减少 reflow 次数,及不同的文档属性(DOM 层级(DOM depth),CSS 效率,...
分类:Web程序   时间:2015-10-15 12:56:00    阅读次数:190
Oracle 死锁的检测查询及处理
-- 死锁查询语句SELECT bs.username "Blocking User", bs.username "DB User", ws.username "Waiting User", bs.SID "SID", ws.SID "WSID", bs.s...
分类:数据库   时间:2015-10-13 00:15:36    阅读次数:268
Task-based Asynchronous Operation in WCF z
Download source - 93.5 KBIntroductionThough performance blocking and sluggishness are the tailbacks for any application, we can easily overcome these ...
分类:其他好文   时间:2015-10-02 10:05:56    阅读次数:362
01_Tornado入门(异步和非堵塞)
Asynchronous and non-Blocking I/O Real-time web features require a long-lived mostly-idle connection per user. In a traditional synchronous web server, this implies devoting one thread to each user...
分类:其他好文   时间:2015-10-02 01:33:43    阅读次数:252
SQL Server blocking session
select * from sys.sysprocesses where blocked>0; 96被95block住了。 dbcc INPUTBUFFER(95) dbcc INPUTBUFFER(96)
分类:数据库   时间:2015-09-24 19:15:20    阅读次数:147
[转载] 网络IO模型
转载自http://blog.csdn.net/zhoudaxia/article/details/8974779同步(synchronous) IO和异步(asynchronous) IO,阻塞(blocking) IO和非阻塞(non-blocking)IO分别是什么,到底有什么区别?这个问题其...
分类:其他好文   时间:2015-09-16 18:02:53    阅读次数:277
sql server 查询阻塞的query的脚本
原文链接:http://blog.sqlauthority.com/2010/10/06/sql-server-quickest-way-to-identify-blocking-query-and-resolution-dirty-solution/SELECTdb.name DBName,tl....
分类:数据库   时间:2015-09-12 16:08:39    阅读次数:170
Async IO
I was recently reading aserieson “Write Sequential Non-Blocking IO Code With Fibers in NodeJS” byVenkatesh.Venki was essentially trying to emphasize t...
分类:其他好文   时间:2015-09-10 21:08:31    阅读次数:202
抓取锁的sql语句-第四次修改
--完成情况 变量V_BLOCKING_SID 用来动态抓取 产生锁的会话id,输出参数没有任何问题,但是执行报错 标识符无效!CREATE OR REPLACE PROCEDURE SOLVE_LOCK123ASV_SQL VARCHAR2(3000); --定义 v_sql 接受抓取锁的sql语...
分类:数据库   时间:2015-09-03 16:32:46    阅读次数:158
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