File Read Cache - How to purge?

[Steve Holden]

Hrvoje Niksic wrote:
> Nick Craig-Wood <nick at craig-wood.com> writes:
> 
>> If you are running linux > 2.6.18 then you can use
>> /proc/sys/vm/drop_caches for exactly that purpose.
>>
>>   http://www.linuxinsight.com/proc_sys_vm_drop_caches.html
> 
> That URL claims that you need to run "sync" before dropping the cache,
> and so do other resources.  I wonder if that means that dropping the
> cache is unsafe on a running system.

Good grief. Just let the operating system do its job, for Pete's sake, 
and go find something else to obsess about.

regards
  Steve
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