Why? Do you evaluate Unix performance with and without file buffers?
wunder
Walter Underwood
wun...@wunderwood.org
http://observer.wunderwood.org/ (my blog)
On Aug 19, 2015, at 5:00 PM, Nagasharath <sharathrayap...@gmail.com> wrote:
> Trying to evaluate the performance of queries with and without cache
>
>
>
>> On 18-Aug-2015, at 11:30 am, Yonik Seeley <ysee...@gmail.com> wrote:
>>
>> On Tue, Aug 18, 2015 at 12:23 PM, naga sharathrayapati
>> <sharathrayap...@gmail.com> wrote:
>>> Is it possible to clear the cache through query?
>>>
>>> I need this for performance valuation.
>>
>> No, but you can prevent a query from being cached:
>> q={!cache=false}my query
>>
>> What are you trying to test the performance of exactly?
>> If you think queries will be highly unique, the best way of testing is
>> to make your test queries highly unique (for example, adding a random
>> number in the mix) so that the hit rate on the query cache won't be
>> unrealistically high.
>>
>> -Yonik
