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From: Sam R. <samruohola@yahoo.com>
To: David Rowley <david.rowley@2ndquadrant.com>
Cc: Sergei Kornilov <sk@zsrv.org>
Cc: pgsql-performance@lists.postgresql.org <pgsql-performance@lists.postgresql.org>
Subject: Re: To keep indexes in memory, is large enough effective_cache_size enough?
Date: Wed, 19 Sep 2018 11:06:53 +0000 (UTC)
Message-ID: <1303501281.5352660.1537355213227@mail.yahoo.com> (raw)
In-Reply-To: <926456011.7484910.1537354876717@mail.yahoo.com>
References: <1321418371.5650982.1537346138600.ref@mail.yahoo.com>
	<1321418371.5650982.1537346138600@mail.yahoo.com>
	<5456011537348252@sas1-fed4e4c8a570.qloud-c.yandex.net>
	<1476619436.6435500.1537348704720@mail.yahoo.com>
	<CAKJS1f_rMSNu2atjj09f6i-GGOavqxKy8F_J5pO2qHDa8+4Mgw@mail.gmail.com>
	<926456011.7484910.1537354876717@mail.yahoo.com>

Size of the index of one huge table has been e.g. 16-20 GB (after REINDEX). 

Size of such an index is quite big.
  
BR Samuli

    On Wednesday, September 19, 2018 2:01 PM, Sam R. <samruohola@yahoo.com> wrote:
 

 Hi!
Thanks for all of the comments!
David wrote:> if you mention 
> how muchRAM the server has and how big the data is now
Let's say for example:
RAM: 64 GB
Data: 500 GB - 1.5 TB, for example. 
( RAM: Less would of course be better, e.g. 32 GB, but we could maybe go for an even little bit bigger value than 64 GB, if needed to. )
BR Sam

    On Wednesday, September 19, 2018 1:11 PM, David Rowley <david.rowley@2ndquadrant.com> wrote:
 
...
 



   

   

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