After Andres's excellent talk at PGConf we tried benchmarking
effective_io_concurrency on some of our servers and found that those which
have a number of NVME storage volumes could not fill the I/O queue even at
the maximum setting (1000).

Before we start benchmarking patched versions of PostgreSQL to bump this
setting up to ever higher values, I am wondering if anyone has done this
yet and if so if you would be willing to share results.

Best Regards,
Chris Travers
Database Administrator

Tel: +49 162 9037 210 | Skype: einhverfr | www.adjust.com
Saarbrücker Straße 37a, 10405 Berlin

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