用于非Web应用程序的日志分析器

I have been searching for some kind of tool to analyse log files that are in custom format (my own format for my own program for example). There are many tools that are designed for web-traffic log analysing, but I haven't found suitable tools for custom log files. I'd be happy to find one where I can collect for example all the timestamps and draw conclusions or graphs based on that. For example show TPS (transactions per second).I have been searching for some kind of tool to