I'm looking for suggestions on SA log analyzers. We have sysstat running on all of our RHEL3 and 4 boxes, with the SAR log generation disabled, and we've been using KSAR (a java app) to analyze the SA logs and generate reports on demand.

The only downside to KSAR is that sometimes it doesn't parse I/O stats very well, and can't report them. CPU, Mem usage, Network usage, is all there. Other than that, it's fantastic. Makes nice reports (PDF) too.

Does anyone else have any suggestions? Must be free and must be able to generate nice reports. Thanks in advance.