From: Tom Lane <tgl@sss.pgh.pa.us>
To: Bob Jolliffe <bobjolliffe@gmail.com>
Cc: pgsql-performance@lists.postgresql.org
Subject: Re: How can sort performance be so different
Date: Tue, 29 Jan 2019 13:47:31 -0500
Message-ID: <14004.1548787651@sss.pgh.pa.us> (raw)
In-Reply-To: <CACd=f9feuR3BkZ65Noce_rc2b5R5GYin_9Gd9UaC_rhOBoch5g@mail.gmail.com>
References: <CACd=f9feuR3BkZ65Noce_rc2b5R5GYin_9Gd9UaC_rhOBoch5g@mail.gmail.com>
Bob Jolliffe <bobjolliffe@gmail.com> writes:
> I wonder what can cause such a massive discrepancy in the sort time.
Are you using the same locale (LC_COLLATE) setting on both machines?
Some locales sort way slower than C locale does. That's not enough
to explain a 1000X discrepancy --- I concur with the other opinions
that there's something wrong with your VPS --- but it might account
for something like 10X of it.
regards, tom lane
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To: pgsql-performance@postgresql.org
Cc: tgl@sss.pgh.pa.us, bobjolliffe@gmail.com, pgsql-performance@lists.postgresql.org
Subject: Re: How can sort performance be so different
In-Reply-To: <14004.1548787651@sss.pgh.pa.us>
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