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diff --git a/2005/flow-accounting-ols2005/OLS2005/prasad/prasad-abstract.tex b/2005/flow-accounting-ols2005/OLS2005/prasad/prasad-abstract.tex new file mode 100644 index 0000000..8d51265 --- /dev/null +++ b/2005/flow-accounting-ols2005/OLS2005/prasad/prasad-abstract.tex @@ -0,0 +1,30 @@ + +% Registration Locating system problems using dynamic +% instrumentation +% Vara Prasad (varap@us.ibm.com) + +It is often difficult to diagnose complex +problems without multiple rebuilds and +reboots. Even in a simple setup, the problem +can touch various layers of the application +and operating system. Diagnosis is even more +difficult in complex, multi-tiered systems. As +Linux is deployed in these environments, it is +becoming more important to have facilities to +locate and identify such problems. + +Using the kprobes infrastructure, SystemTAP is +being developed to dynamically instrument the +kernel and user applications. SystemTAP +instrumentation incurs low overhead when +enabled, and zero overhead when disabled. +SystemTAP provides facilities to define +instrumentation points in a high-level +language, and to aggregate and analyze the +instrumentation data. Details of the SystemTAP +architecture and implementation are presented, +along with examples of solving problems in the +production environments. + + + |