Doubt on echo 1 >> /proc/sys/vm/drop_caches
Abhishek Rane
abhishekrane at gmail.com
Sat Dec 22 06:54:08 UTC 2007
Thanks a lot guys that info was really helpful..The blog was also
great.. :-)
Cheers,
Abhishek
Jon Stanley wrote:
> On 12/21/07, Gijs <info at boer-software-en-webservices.nl> wrote:
>
>
>> And yes, it is safe to do.
>>
>
> Safe, but not recommended. I can't see any real-world use for this.
> The only practical use of which I'm aware is if you are doing I/O
> benchmarking and you want to test the actual speed of the I/O, as
> opposed to the efficacy of the pagecache. On a normal system, the
> pagecache dramatically increases performance by not having to go to
> disk for filesystem data or metadata, depending on what cache you're
> looking at.
>
> For a detailed explanation of the values, check out my blog at
> http://jons-thoughts.blogspot.com/2007/09/tip-of-day-dropcaches.html
>
>
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