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From: Tom Lane <tgl@sss.pgh.pa.us>
To: researcherhpc@gmail.com
cc: pgsql-bugs@lists.postgresql.org
Subject: Re: BUG #17307: Performance deviation between the multiple iterations
 (NOPM & TPM values).
In-reply-to: <17307-45aac4924bf83586@postgresql.org>
References: <17307-45aac4924bf83586@postgresql.org>
Comments: In-reply-to PG Bug reporting form <noreply@postgresql.org>
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Date: Thu, 02 Dec 2021 13:52:34 -0500
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PG Bug reporting form <noreply@postgresql.org> writes:
> NOPM values captured with HammerDB-v4.3 scripts (schema_tpcc.tcl and
> test_tpcc.tcl ) for multiple trails.
> The expected performance deviation between multiple trials should be less
> than 2% 

According to who?  Even if you'd provided an easily reproducible
example, I doubt we'd accept this as a bug.  Adding more sessions
does not have zero cost.

			regards, tom lane