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linux命令--top命令&free命令
top命令是用来查看系统性能的工具,能够实时显示各个进程的状况,包括进程ID、内存占用率、CPU占用率等。 top?-?23:12:04?up?79?days,??8:14,??1?user,??load?average:?0.00,?0.01,?0.05 Tasks:...
分类:系统相关   时间:2015-10-10 23:12:06    阅读次数:441
zoj 3819 Average Score
Average ScoreTime Limit: 2 Seconds Memory Limit: 65536 KBBob is a freshman in Marjar University. He is clever and diligent. However, he is not good a....
分类:其他好文   时间:2015-10-08 20:02:05    阅读次数:275
ZOJ3819 ACM-ICPC 2014 亚洲区域赛的比赛现场牡丹江司A称号 Average Score 注册标题
Average ScoreTime Limit:2 Seconds Memory Limit:131072 KBBob is a freshman in Marjar University. He is clever and diligent. However, he is not good at ...
分类:其他好文   时间:2015-10-05 20:39:41    阅读次数:184
Linux常用性能检测命令解释
1、uptime[root@smgsim02 ~]# uptime15:08:15 up 98 days, 4:19, 2 users, load average: 0.07, 0.29, 0.14当前时间 系统运行至今的时间 多少用户登录当前系统 分别是1分钟,5分钟,15分钟前至今的负载情况lo...
分类:系统相关   时间:2015-09-29 13:00:49    阅读次数:276
数字信号处理1-Moving Average Filter
大多数人对滤波器的了解,只是认为,滤波器就是对信号进行分离,比如滤除信号中低频或者高频的成分,实际上这种理解是狭义的,广义上的滤波器除了包括上面的功能以外,还包括对信号的整形,而前者是频域滤波器,后者为时域滤波器。本文所提到的Moving Average Filter实际上就是一种时域滤波器。由滤波...
分类:其他好文   时间:2015-09-26 17:19:43    阅读次数:395
poj 2388 Who's in the Middle
DescriptionFJ is surveying his herd to find the most average cow. He wants to know how much milk this 'median' cow gives: half of the cows give as muc...
分类:其他好文   时间:2015-09-26 17:12:17    阅读次数:189
二维数组的平均值求法
1 package com.shuzu; 2 3 public class Average { 4 public static void main(String[] args) { 5 int[][] a = {{2,3},{6,7},{8,20,20}}; 6 ...
分类:编程语言   时间:2015-09-24 10:46:14    阅读次数:199
谨记于心
“For most things in life, the range between best and average is 30% or so. The best airplane flight, the best meal, they may be 30% better than your average one. What I saw with Woz was somebody w...
分类:其他好文   时间:2015-09-21 19:51:30    阅读次数:280
好评与差评的rank:Wilson lower bound
好评与差评的rank:Wilson lower boundsite:http://www.evanmiller.org/how-not-to-sort-by-average-rating.htmlByEvan MillerFebruary 6, 2009(Changes)PROBLEM: You a...
分类:其他好文   时间:2015-09-18 15:28:41    阅读次数:230
SQL SERVER 可以提供性能的语法
SELECT avg_user_impact AS average_improvement_percentage, avg_total_user_cost AS average_cost_of_query_without_missing_index, 'CREATE INDEX ix_' + [.....
分类:数据库   时间:2015-09-18 11:56:24    阅读次数:212
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