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Re: InnoDB CPU Spikes
Posted by: Sabari girish Viswanathan
Date: March 31, 2009 02:31AM

Thanks Rick.

Few basic questions
1. What is the difference between the values of the explain keyword "Using where; Using index" and "Using where; Using filesort".

2. Is using index better than using filesort?

3. Can I use a MEMORY engine for the raw table? Would this reduce the CPU spikes? I would use an event and move the recs from the Memory Table to an InnoDB table for persistence.

4. Summary Table is the best option but I stuck because for the report I need to show how many unique transactions per user happened in hourly basis and daily basis. This in effect means that I am doing a 1M scan per hour and 24M scan for a day and thats where I am confused about the implementation. Please help.

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Re: InnoDB CPU Spikes
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