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Zaurus 中文论坛 Forum Index » pdaXrom & debain & openBSD

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关于swap与pdaxrom系统中软件运行速度的疑问?
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geely



Joined: 13 Feb 2008
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PostPosted: 2008-Apr-02 Wed, am8:46 Reply with quote
 Post subject: 关于swap与pdaxrom系统中软件运行速度的疑问?

看过很多关于pdaxrom的优化文章,里面都提到了在ext2/3格式的SD卡上开swap文件,可以提高系统的速度并缓解内存小的压力。我原来一直用CACKO的,也是开了swap文件的,因为每次启动都是自动加载swapfile,所以到没有什么感觉。
这几天装了pdaxrom,按照优化文章设置了32M的swapfile,swapon后开始安装软件。装了abiword后,运行发现超级缓慢!?没有几分钟根本看不得软件的界面。开始以为是版本的问题,换了几个版本均无效。正准备放弃,无意中发现如果不开swapfile,abiword就正常了,几秒中就可以使用了。
晕啊!怎么会这样呢?
反复尝试了几次,无论上在终端里手动加载swapfile还是用powerctrl自动加载swapfile,总之只要swapfile启用了,abiword就会超级缓慢。其他软件如FBreader、Notecase等等无论是否加载swapfile到貌似一切正常。
请指教这是什么原因呢?感觉很没有道理,呵呵!

btw:软件是装置/mnt/card,需要的lib都是装在主内存里了。

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btest



Joined: 22 Nov 2007
Posts: 175

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PostPosted: 2008-Apr-02 Wed, am9:32 Reply with quote
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我想你是把swapfile建在SD卡上吧,读写SD的速度是很慢的。
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ccpaging



Joined: 07 Dec 2006
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PostPosted: 2008-Apr-02 Wed, pm4:37 Reply with quote
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可能是同时读程序文件和读写swap,造成速度慢。
尽量把abiword放到NAND里边试试。

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