Comments - Aria System Variables: aria_block_size
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I tried reducing aria_block_size to 2048 but performance improvements were negligible. So I guess that using PAGE format, as Ian said, explains the very noticeable drop in performance compared to MyISAM.
Just for the fun of it, I'll give it a try with DYNAMIC format, but that does mean that the tables won't be crash free.
I read that Aria 2.5 will focus on performance improvements. Any chance that full tables scans will be addressed, if that's even possible?
Yes, only PAGE format tables (with TRANSACTIONAL=1, which is not the default) are crash safe. There's not much activity with Aria development at the moment, so I'm not sure when full scan performance will be looked at.