Using LINUX MINT along with XAMPP seems to be a perfect combination.
As I am monitoring most of relevant aspects from different fields (PHP, apache, MySQL, disks, network amm.) there is a question from my side regarding interrupts: cat /proc/interrupts Why so many RES rescheduling interrupts ?
I am complaining about poor responsetime or slowdowns just the high numbers make me thinking.
What is the actual output for RES? Rescheduling interrupts occur frequently due to scheduling priority issues. Example: my Scientific Linux 6 (RHEL 6 clone) after 11 days uptime has 400-500K RES events for each of 8 cores - about 4M in total. There are about 3x as many function call interrupts (CAL), and a fair number more TLB shootdowns (TLB). So, without some real numbers, there isn't much we can say about whether or not your system is performing abnormally. In sum, please post the following information:
2. full output of the "cat /proc/interrupts" command
Well, if performance is not impacted, then probably this is not an issue. As they say, if it ain't broke, don't try to fix it! :-) Honestly, scheduling interrupts are largely dependent upon the schedulers you are using, and load factors that I cannot know about.
Interesting, I understand that schedulers i.e. crontab and time driven MySQL procedures are contributing to that kind of activities. Mostly I am using this PC for development and testing. Running php scricts again and again.
As I am expecting less workload in production I don't feel concerned about it at all. And you are right, don't touch/break it unless there would be a reason to react.