TUNING WEBLOGIC SERVER

Core Server JDBC Tuning JVM Tuning OS Tuning TOPICS

Core Server Enable Native IO Tuning Chunk size also reduces the socket reads/writes Set a smaller chunk size for high frequency small payload workloads Set the chunk size at both client and server side to increase the performance Tune the chunk size to match the network MTU size and operating system memory page size for better performance Ensure that chunk size is multiple of 8 as well as MTU size Chunks are pooled to prevent allocation cost (- Dweblogic.utils.io.chunkpoolsize=n) By default it is 512, you should set a large pool size to accomodate workloads with many concurrent clients.

JDBC Tuning JDBC Tuning: Use Oracle thin driver Disable Shrink frequency in Production make it as 0 Disable Test connections on Reserve and Test Frequency parameters Enable Row prefetching Use statement caching Pinned to thread enabling improves the perforrmance

JVM To see a detailed behaviour og GC, use the – verboseGC option Set –Xms equal to –Xmx to avoid the need to grow heap For optimum performance, set –Xmn to be one fourth of the value of –Xmx -Xmn = New Generation Size, -Xms= Initial Total Java Heap, -Xmx = Maximum Total Java Heap

OS Tuning Contact your OS Administrator

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