由买买提看人间百态

boards

本页内容为未名空间相应帖子的节选和存档,一周内的贴子最多显示50字,超过一周显示500字 访问原贴
Java版 - 怎么能又快又不占用很大MEMORY?
相关主题
JDBC用完了oracle的large pool (memory),怎么办?PHP
treemap和hashma p的问题为什么结果是3?
Answer to "Is this a Bug or not? "java memory management?
Answer 2 to "Is this a Bug or not? "[转载] 问一个关于速度的问题
Re: 怎么用simulate CGI 'POST' in "https" protocol?out of memory
Re: EJB - INTERVIEW QUESTIONS (Do you have answers, weblogic?)Re: Out of memory, Java heap space 的问题怎么解决? (转载)
Help!! a cookie question问个系统问题 (转载)
java/J2EE interview questions and answers ebook帮我了解一下64bit JVM
相关话题的讨论汇总
话题: memory话题: 占用话题: 很大话题: external话题: sort
进入Java版参与讨论
1 (共1页)
G*********a
发帖数: 1080
1
如果有个很大的数据N,需要进行数据间逐一对比?
一定要做个数据库了吧?
g*****g
发帖数: 34805
2
N * N comparison? If you want to be fast, database is never your friend.
An external sort?

【在 G*********a 的大作中提到】
: 如果有个很大的数据N,需要进行数据间逐一对比?
: 一定要做个数据库了吧?

G*********a
发帖数: 1080
3
thanks for answering me, can u give me an example of external sort? i am
googling for it now. i am not a programmer expert, hehe.

【在 g*****g 的大作中提到】
: N * N comparison? If you want to be fast, database is never your friend.
: An external sort?

1 (共1页)
进入Java版参与讨论
相关主题
帮我了解一下64bit JVMRe: 怎么用simulate CGI 'POST' in "https" protocol?
求教有没有好的查memory leak的工具?Re: EJB - INTERVIEW QUESTIONS (Do you have answers, weblogic?)
Eclipse taking 420MB memory!Help!! a cookie question
64bit java's performance really sucksjava/J2EE interview questions and answers ebook
JDBC用完了oracle的large pool (memory),怎么办?PHP
treemap和hashma p的问题为什么结果是3?
Answer to "Is this a Bug or not? "java memory management?
Answer 2 to "Is this a Bug or not? "[转载] 问一个关于速度的问题
相关话题的讨论汇总
话题: memory话题: 占用话题: 很大话题: external话题: sort