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Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
Posted by: Sudarshan m
Date: January 29, 2020 04:02AM

we have around 24GB RAM with 4 DB instance, default key_buffer_size is 512M but we have tried till 2GB also. 5.7 we had 512M.

| Key_read_requests | 323102202 |
| Key_reads | 805495 |
| Key_write_requests | 32230358 |
| Key_writes | 2323853

so Key_read_requests / Key_reads =323102202/ 805495 =401

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why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
January 28, 2020 12:09PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Edwin Desouza
January 28, 2020 03:42PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
January 29, 2020 04:05AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Peter Brawley
January 28, 2020 06:42PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
January 29, 2020 04:02AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
January 31, 2020 04:10AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Peter Brawley
January 31, 2020 10:15AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Edwin Desouza
January 31, 2020 11:41AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
February 03, 2020 05:01AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Peter Brawley
February 03, 2020 11:00AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
February 06, 2020 05:01AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Peter Brawley
February 06, 2020 06:50AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
February 03, 2020 04:54AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Frederic Descamps
February 03, 2020 12:35PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
February 06, 2020 04:32AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Frederic Descamps
February 06, 2020 11:56PM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Edwin Desouza
February 07, 2020 12:03AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Sudarshan m
February 10, 2020 09:09AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Peter Brawley
February 10, 2020 09:45AM
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Edwin Desouza
February 10, 2020 06:16PM
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Sudarshan m
February 11, 2020 04:13AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Edwin Desouza
February 11, 2020 11:14AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Edwin Desouza
February 11, 2020 11:16AM
Re: why MySql 8.0.17 Select query performance is slower than Mysql 5.7.26?
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Peter Brawley
February 11, 2020 12:45PM


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