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Re: Great performance difference importing a dump
Posted by: Leonardo Burchi
Date: November 27, 2013 03:37AM

Thank you Rick for your answer!
I'm sure there are no problem on the disk. I tried with all the virtual machines turned off and nothing change.
This is the output of show variables like '%buffer%' configuration for 5.6 mysql version:

+-------------------------------------+----------------+
| Variable_name | Value |
+-------------------------------------+----------------+
| bulk_insert_buffer_size | 8388608 |
| innodb_buffer_pool_dump_at_shutdown | OFF |
| innodb_buffer_pool_dump_now | OFF |
| innodb_buffer_pool_filename | ib_buffer_pool |
| innodb_buffer_pool_instances | 8 |
| innodb_buffer_pool_load_abort | OFF |
| innodb_buffer_pool_load_at_startup | OFF |
| innodb_buffer_pool_load_now | OFF |
| innodb_buffer_pool_size | 2147483648 |
| innodb_change_buffer_max_size | 25 |
| innodb_change_buffering | all |
| innodb_log_buffer_size | 8388608 |
| innodb_sort_buffer_size | 1048576 |
| join_buffer_size | 262144 |
| key_buffer_size | 1073741824 |
| myisam_sort_buffer_size | 8388608 |
| net_buffer_length | 16384 |
| preload_buffer_size | 32768 |
| read_buffer_size | 131072 |
| read_rnd_buffer_size | 262144 |
| sort_buffer_size | 2097152 |
| sql_buffer_result | OFF |
+-------------------------------------+----------------+
22 rows in set (0,00 sec)

The VM have 6 Gb of RAM configured

Thank you again!

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Re: Great performance difference importing a dump
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November 27, 2013 03:37AM


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