This document discusses high performance extensible logging (HPEL) in WebSphere Application Server v8. HPEL improves log and trace performance by storing data in binary format repositories instead of text files. It describes HPEL configuration options for logs, traces, and text logs. Administrators can view and export HPEL data using the administration console or logviewer command line tool. The author is a WebSphere consultant who helps clients with administration, troubleshooting and architecture.