vmstat questions

Morgan Wesström freebsd-questions at pp.dyndns.biz
Mon Jun 1 08:55:49 UTC 2009

Hi. This is my "vmstat -i" from my newly installed 7.2-RELEASE-amd64:

# vmstat -i
interrupt                          total       rate
irq4: sio0                          1105          0
irq17: em1 uhci1+               10921807        182
irq19: uhci3++                   8196905        136
cpu0: timer                    117164643       1956
irq256: em0                      7346687        122
irq257: re0                       166625          2
cpu1: timer                    117164471       1956
Total                          260962243       4358

For a long time I've tried to find out what the + and ++ means. Can
anyone shed some light on that?

Also, where did my atapcis on irq19 go? I'm pretty sure I had them
listed there in 7.0-RELEASE.

dmesg snip:

uhci3: <Intel 82801H (ICH8) USB controller USB-B> port 0xd480-0xd49f irq
19 at device 29.1 on pci0
atapci2: <Intel ICH8 SATA300 controller> port
irq 19 at device 31.2 on pci0
atapci3: <Intel ICH8 SATA300 controller> port
irq 19 at device 31.5 on pci0


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