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Linux and Mysql Tuning Getting the most from your hardware
The Ubiquitous “About Me” ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Your Mileage May Vary ,[object Object],[object Object],[object Object]
What to measure? ,[object Object],[object Object]
Measure YOUR application ,[object Object],[object Object]
Talk outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Why? ,[object Object],[object Object],[object Object],[object Object]
IO Scheduler Tuning ,[object Object],[object Object],[object Object],[object Object]
VM on ESX with no-cache RAID1 ,[object Object],[object Object],Switch to NoOP Switch to  NoOP
VM on ESX no-cache RAID1 ,[object Object],[object Object],Switch to CFQ
Lots of IO where ordering doesn't matter ,[object Object],[object Object],Switch to NoOP Switch to NoOP
But it saves CPU, right? ,[object Object],Policy switched
Innodb Thread Concurrency ,[object Object],[object Object],[object Object],[object Object]
Test! Benchmark first, then real life ,[object Object],[object Object],[object Object]
Results will vary with # users ,[object Object]
My results, not yours ,[object Object],[object Object],[object Object]
More InnoDB threads – more efficient use of CPU 8 Innodb threads 4 Innodb Threads 16 Innodb Threads ∞   Innodb Threads
Swapping ,[object Object],[object Object],[object Object]
Disable swap? ,[object Object],[object Object],[object Object]
Easy things first ,[object Object],[object Object],[object Object]
NUMA factors ,[object Object],[object Object],[object Object],[object Object]
Numa, II ,[object Object],[object Object],[object Object],[object Object],[object Object]
HugePages ,[object Object],[object Object],[object Object],[object Object]
HugePages ,[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object]
That's it! ,[object Object],[object Object],[object Object],[object Object]

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Mysql talk

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  • 17. More InnoDB threads – more efficient use of CPU 8 Innodb threads 4 Innodb Threads 16 Innodb Threads ∞ Innodb Threads
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