jacobs_tuuri_performance

InnoDB Designing Applications and Configuring for Best Performance Heikki Tuuri CEO Innobase Oy Vice President, Development Oracle Corporation 1 InnoDB

Today’s Topics ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Application Design and Performance ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Proper application design is the most important part of performance tuning

Application Design and Performance ,[object Object],[object Object],[object Object],[object Object],[object Object],Proper application design is the most important part of performance tuning

Basic InnoDB Configuration ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Analyzing InnoDB Performance Problems ,[object Object],[object Object],[object Object],[object Object],[object Object]

CPU or Disk-Bound Workload? ,[object Object],[object Object],[object Object],[object Object],CPU usage < 70 % suggests a disk-bound workload

Save CPU Time ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Reduce Disk Access Bottleneck ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Make Your InnoDB Tables Smaller ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Smaller tables use fewer disk blocks, thus requiring less i/o

Reduce Transaction Commit Disk I/O ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spread Disk I/O to Several Disks ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Store InnoDB data on multiple physical disk drives

Avoid O/S Double Buffering ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Devote physical RAM to InnoDB, not the o/s file cache!

Avoid Slow O/S File Flushing ,[object Object],[object Object],[object Object],[object Object]

Avoid “Thread Thrashing” in High Concurrency Environments ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Limit the number of threads executing inside InnoDB at once

Avoid Transaction Deadlocks ,[object Object],[object Object],[object Object],Design and configure to reduce the likelihood of deadlocks, which lower throughput if they occur frequently

Avoid Transaction Deadlocks (2) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Design and configure to reduce the likelihood of deadlocks, which lower throughput if they occur frequently

Avoid Transaction Deadlocks (3) ,[object Object],[object Object],[object Object],Design and configure to reduce the likelihood of deadlocks, which lower throughput if they occur frequently SET AUTOCOMMIT=0; LOCK TABLES t1 WRITE, t2 READ, ...; <INSERTs, UPDATEs, DELETEs> …; UNLOCK TABLES; COMMIT;

Speed up Table Imports to InnoDB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Pre-process your data and know whether it is valid before loading

Avoid Big Deletes or Rollbacks ,[object Object],[object Object],[object Object],[object Object],[object Object]

Summary: InnoDB Performance Tuning ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

A Q & Q U E S T I O N S A N S W E R S

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