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de9c357284
Only add innodb_async_reads/writes_total_count here. For all other counters, writing reproducible tests is rather tricky.
24 lines
1,019 B
Text
24 lines
1,019 B
Text
SET @save_pct= @@GLOBAL.innodb_max_dirty_pages_pct;
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SET @save_pct_lwm= @@GLOBAL.innodb_max_dirty_pages_pct_lwm;
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SET GLOBAL innodb_max_dirty_pages_pct_lwm=0.0;
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SET GLOBAL innodb_max_dirty_pages_pct=0.0;
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SET GLOBAL innodb_max_dirty_pages_pct=90.0;
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select variable_value into @innodb_async_writes_total_count_before
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from information_schema.global_status
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where variable_name='innodb_async_writes_total_count';
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CREATE TABLE t ENGINE=InnoDB SELECT * FROM seq_1_to_10000;
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SELECT variable_value>0 FROM information_schema.global_status
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WHERE variable_name = 'INNODB_BUFFER_POOL_PAGES_DIRTY';
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variable_value>0
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1
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SET GLOBAL innodb_max_dirty_pages_pct=0.0;
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select (cast(variable_value as unsigned) >
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cast(@innodb_async_writes_total_count_before as unsigned))
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as innodb_async_writes_grow
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from information_schema.global_status
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where variable_name='innodb_async_writes_total_count';
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innodb_async_writes_grow
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1
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DROP TABLE t;
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SET GLOBAL innodb_max_dirty_pages_pct = @save_pct;
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SET GLOBAL innodb_max_dirty_pages_pct_lwm = @save_pct_lwm;
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