public inbox for [email protected]
help / color / mirror / Atom feedFrom: Anton A. Melnikov <[email protected]>
To: [email protected] <[email protected]>
Subject: Some performance degradation in REL_16 vs REL_15
Date: Thu, 12 Oct 2023 11:00:22 +0300
Message-ID: <[email protected]> (raw)
Greetengs!
Found that simple test pgbench -c20 -T20 -j8 gives approximately
for REL_15_STABLE at 5143f76: 336+-1 TPS
and
for REL_16_STABLE at 4ac7635f: 324+-1 TPS
The performance drop is approximately 3,5% while the corrected standard deviation is only 0.3%.
See the raw_data.txt attached.
How do you think, is there any cause for concern here?
And is it worth spending time bisecting for the commit where this degradation may have occurred?
Would be glad for any comments and concerns.
With the best regards,
--
Anton A. Melnikov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company
REL_15_STABLE at 5143f76, TPS
336.639765
334.376801
334.963121
336.23666
335.698673
REL_16_STABLE at 4ac7635f, TPS
324.373695
323.168622
323.728652
325.799901
324.81759
Attachments:
[text/plain] raw_data.txt (171B, ../[email protected]/2-raw_data.txt)
download | inline:
REL_15_STABLE at 5143f76, TPS
336.639765
334.376801
334.963121
336.23666
335.698673
REL_16_STABLE at 4ac7635f, TPS
324.373695
323.168622
323.728652
325.799901
324.81759
view thread (2+ messages)
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected]
Subject: Re: Some performance degradation in REL_16 vs REL_15
In-Reply-To: <[email protected]>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox