Re: gaussian distribution pgbench
| От | Fabien COELHO |
|---|---|
| Тема | Re: gaussian distribution pgbench |
| Дата | |
| Msg-id | alpine.DEB.2.10.1403140758320.4831@sto обсуждение исходный текст |
| Ответ на | Re: gaussian distribution pgbench (KONDO Mitsumasa <kondo.mitsumasa@lab.ntt.co.jp>) |
| Список | pgsql-hackers |
> Well, when we set '--gaussian=NUM' or '--exponential=NUM' on command line, we > can see access probability of top N records in result of final output. This > out put is under following, Indeed. I had forgotten this point. This is a significant information that I would not like to loose. > This feature helps user to understand bias of distribution for tuning > threshold parameter. > If this feature is nothing, it is difficult to understand distribution of > access pattern, and it cannot realized on custom script. Because range of > distribution (min, max, and SQL pattern) are unknown on custom script. So I > think present UI is not bad and should not change. Ok. I agree with this argument. -- Fabien.
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