RHEL Kernel Performance Optimization, Characterization ... - Red Hat

Tuning Network Apps Messages/sec Disable cpuspeed, selinux, auditd, irqbalanceManual binding IRQs w/ multiple nics●echo values > /proc/irq/XXX or use “TUNA”●Intel ixgb IRQs send/recv to cpu socket w/ shared cacheUse Taskset ­c to start applications on●1 cpu per socket – good for BW intensive app Shield cpus for critical apps●Move all existing processes off of the core(s) to cpu0 Pairs of cpus on the same socket – shared 2nd level cache Keep user apps on cpus separate from Network apps