[HACKERS] Anyone have experience benchmarking very high effective_io_concurrencyon NVME's?

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От Chris Travers
Тема [HACKERS] Anyone have experience benchmarking very high effective_io_concurrencyon NVME's?
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Msg-id CAN-RpxCAHy7fhT2fjtRorK-aFr0WVusQ4SfN-DuRt_m-GGpeoQ@mail.gmail.com
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Ответы [HACKERS] Re: Anyone have experience benchmarking very high effective_io_concurrencyon NVME's?  (Greg Stark <stark@mit.edu>)
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Hi;

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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