How to clean up buffer or cache momory?

[黄小伟]

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 at 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 at gmail.com> 写道：
>> >2012/2/16 黄小伟 <jingle2422 at 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
>> >
>> >_______________________________________________
>> >Kernelnewbies mailing list
>> >Kernelnewbies at kernelnewbies.org
>> >http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
>> _______________________________________________
>> Kernelnewbies mailing list
>> Kernelnewbies at kernelnewbies.org
>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>
>
>-- 
>Thanks,
>Chao Wang
>
>_______________________________________________
>Kernelnewbies mailing list
>Kernelnewbies at kernelnewbies.org
>http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20120221/605a7db7/attachment.html