Your PC has been logging why it's slow the whole time and one command gives you the report. Why aren't you running it?

TopView PerfMon is a new system performance software program that will help you prevent system and application failures through early detection of abnormal system performance and device availability ...

sar (part of sysstat) will track most performance counters. It doesn't track applications, like Apache, as far as I know. You may be able to use Net-SNMP to track all the things you listed, but it ...