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Date: Wed, 28 Mar 2018 20:03:48 +0300
From: Konstantin Osipov <kostja@tarantool.org>
Subject: Re: [commits] [tarantool] 03/04: bloom: optimize tuple bloom filter
 size
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To: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: tarantool-patches@freelists.org, commits@tarantool.org
List-ID: <tarantool-patches.dev.tarantool.org>

* Vladimir Davydov <vdavydov.dev@gmail.com> [18/03/28 14:50]:
> > 
> > In future, It would be nice to actually have stats about actual false
> > positive rates so that we know if the papers are BS or not.
> 
> We already have bloom.hit and bloom.miss stat counters in index.info()
> so we can calculate the false positive rate as
> 
>   bloom.miss / (bloom.hit + bloom.miss)

Do you have a test verifying that the formula works?

-- 
Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
http://tarantool.io - www.twitter.com/kostja_osipov