I know, but it can not allocate all the cache memory, so you will fail sometimes if the memory has not been reclaimed. 在 2012-02-17 15:13:18，"Wang Chao" <wangchao19890207@gmail.com> 写道：
On 02/16/12 at 09:33pm, 黄小伟 wrote:
I know this, but I want to reclaim dynamically. Say in a shout time, several seconds. Why do want to do that? Does it have a bad influence on performance? Kernel will reclaim these cache itself when your machine runs out of mm.
在 2012-02-16 21:21:11，"Manish Katiyar" <mkatiyar@gmail.com> 写道：
2012/2/16 黄小伟 <jingle2422@163.com>:
Hi I encounter a problem recentely. My system supports USB strorage and other network applications. But after I put a file to usb storage, it will consume some many momory. (buffer + cache). And these buffered memory can not be reclaimed(use free command). So I want to know how to reclaim the buffer memory in a short time.
Google for ./sys/vm/drop_caches
-- Thanks - Manish
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-- Thanks, Chao Wang
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