RHEL Kernel Performance Optimization, Characterization ... - Red Hat
RHEL Kernel Performance Optimization, Characterization ... - Red Hat
RHEL Kernel Performance Optimization, Characterization ... - Red Hat
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Profiling Tools: SystemTapTechnology: Kprobes:●●●In current 2.6 kernels●Upstream 2.6.12, backported to <strong>RHEL</strong>4 kernel<strong>Kernel</strong> instrumentation without recompile/rebootUses software int and trap handler for instrumentationDebug information:●●●Provides map between executable and source codeGenerated as part of RPM buildsAvailable at: ftp://ftp.redhat.comSafety: Instrumentation scripting language:●●●No dynamic memory allocation or assembly/C codeTypes and type conversions limitedRestrict access through pointersScript compiler checks:●Infinite loops and recursion – Invalid variable access