RE: Protect syscache from bloating with negative cache entries - Mailing list pgsql-hackers

From Tsunakawa, Takayuki
Subject RE: Protect syscache from bloating with negative cache entries
Date
Msg-id 0A3221C70F24FB45833433255569204D1FB93A16@G01JPEXMBYT05
Whole thread Raw
In response to Re: Protect syscache from bloating with negative cache entries  ("bruce@momjian.us" <bruce@momjian.us>)
Responses Re: Protect syscache from bloating with negative cache entries  (Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>)
List pgsql-hackers
From: bruce@momjian.us [mailto:bruce@momjian.us]
> On Mon, Feb 4, 2019 at 08:23:39AM +0000, Tsunakawa, Takayuki wrote:
> > Horiguchi-san, Bruce, all, So, why don't we make
> > syscache_memory_target the upper limit on the total size of all
> > catcaches, and rethink the past LRU management?
> 
> I was going to say that our experience with LRU has been that the
> overhead is not worth the value, but that was in shared resource cases,
> which this is not.

That's good news!  Then, let's proceed with the approach involving LRU, Horiguchi-san, Ideriha-san.


Regards
Takayuki Tsunakawa





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