Thread (6 messages) 6 messages, 4 authors, 2012-02-21

How to clean up buffer or cache momory?

From: 黄小伟 <hidden>
Date: 2012-02-21 13:20:25

I know, but it can not allocate all the cache memory, so you will fail sometimes if the memory has not been reclaimed.





? 2012-02-17 15:13:18?"Wang Chao" [off-list ref] ???
On 02/16/12 at 09:33pm, ??? wrote:
quoted
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.
quoted




? 2012-02-16 21:21:11?"Manish Katiyar" [off-list ref] ???
quoted
2012/2/16 ??? [off-list ref]:
quoted
 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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quoted
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-- 
Thanks,
Chao Wang

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