Hello Ian,

  I'm  also  facing same problem, just updated to esxi 5 update1, will
  see if it changes anything.
  It  really  looks  like an esxi problem but I did not experienced it
  with FreeBSD 8
  Here is the output of requested commands:


sysctl kern.timecounter
kern.timecounter.tick: 1
kern.timecounter.choice: TSC(-100) i8254(0) ACPI-fast(900) HPET(950) dummy(-1000000)
kern.timecounter.hardware: HPET
kern.timecounter.stepwarnings: 0
kern.timecounter.tc.HPET.mask: 4294967295
kern.timecounter.tc.HPET.counter: 1217640570
kern.timecounter.tc.HPET.frequency: 14318180
kern.timecounter.tc.HPET.quality: 950
kern.timecounter.tc.ACPI-fast.mask: 16777215
kern.timecounter.tc.ACPI-fast.counter: 708780
kern.timecounter.tc.ACPI-fast.frequency: 3579545
kern.timecounter.tc.ACPI-fast.quality: 900
kern.timecounter.tc.i8254.mask: 65535
kern.timecounter.tc.i8254.counter: 14912
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.i8254.quality: 0
kern.timecounter.tc.TSC.mask: 4294967295
kern.timecounter.tc.TSC.counter: 1849391829
kern.timecounter.tc.TSC.frequency: 3411483000
kern.timecounter.tc.TSC.quality: -100
kern.timecounter.smp_tsc: 0
kern.timecounter.invariant_tsc: 1

sysctl kern.eventtimer
kern.eventtimer.choice: LAPIC(600) i8254(100) RTC(0)
kern.eventtimer.et.LAPIC.flags: 7
kern.eventtimer.et.LAPIC.frequency: 33000086
kern.eventtimer.et.LAPIC.quality: 600
kern.eventtimer.et.i8254.flags: 1
kern.eventtimer.et.i8254.frequency: 1193182
kern.eventtimer.et.i8254.quality: 100
kern.eventtimer.et.RTC.flags: 17
kern.eventtimer.et.RTC.frequency: 32768
kern.eventtimer.et.RTC.quality: 0
kern.eventtimer.periodic: 0
kern.eventtimer.timer: LAPIC
kern.eventtimer.idletick: 0
kern.eventtimer.singlemul: 4

vmstat -i
interrupt                          total       rate
irq1: atkbd0                         192          0
irq15: ata1                           17          0
irq18: em0                       3519101          2
cpu0:timer                      92428991         63
irq256: mpt0                     1887875          1
cpu2:timer                      29982105         20
cpu1:timer                      46249642         31
cpu3:timer                      15983874         10
cpu6:timer                       4721414          3
cpu7:timer                       4554357          3
cpu4:timer                       8397088          5
cpu5:timer                       6163947          4
Total                          213888603        146

----- near 10 sec later -----

sysctl kern.timecounter
kern.timecounter.tick: 1
kern.timecounter.choice: TSC(-100) i8254(0) ACPI-fast(900) HPET(950) dummy(-1000000)
kern.timecounter.hardware: HPET
kern.timecounter.stepwarnings: 0
kern.timecounter.tc.HPET.mask: 4294967295
kern.timecounter.tc.HPET.counter: 1217640570
kern.timecounter.tc.HPET.frequency: 14318180
kern.timecounter.tc.HPET.quality: 950
kern.timecounter.tc.ACPI-fast.mask: 16777215
kern.timecounter.tc.ACPI-fast.counter: 802778
kern.timecounter.tc.ACPI-fast.frequency: 3579545
kern.timecounter.tc.ACPI-fast.quality: 900
kern.timecounter.tc.i8254.mask: 65535
kern.timecounter.tc.i8254.counter: 24402
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.i8254.quality: 0
kern.timecounter.tc.TSC.mask: 4294967295
kern.timecounter.tc.TSC.counter: 3853372129
kern.timecounter.tc.TSC.frequency: 3411483000
kern.timecounter.tc.TSC.quality: -100
kern.timecounter.smp_tsc: 0
kern.timecounter.invariant_tsc: 1

sysctl kern.eventtimer
kern.eventtimer.choice: LAPIC(600) i8254(100) RTC(0)
kern.eventtimer.et.LAPIC.flags: 7
kern.eventtimer.et.LAPIC.frequency: 33000086
kern.eventtimer.et.LAPIC.quality: 600
kern.eventtimer.et.i8254.flags: 1
kern.eventtimer.et.i8254.frequency: 1193182
kern.eventtimer.et.i8254.quality: 100
kern.eventtimer.et.RTC.flags: 17
kern.eventtimer.et.RTC.frequency: 32768
kern.eventtimer.et.RTC.quality: 0
kern.eventtimer.periodic: 0
kern.eventtimer.timer: LAPIC
kern.eventtimer.idletick: 0
kern.eventtimer.singlemul: 4

vmstat -i
interrupt                          total       rate
irq1: atkbd0                         192          0
irq15: ata1                           17          0
irq18: em0                       3519133          2
cpu0:timer                      92429487         63
irq256: mpt0                     1887875          1
cpu2:timer                      29983186         20
cpu1:timer                      46250719         31
cpu3:timer                      15983969         10
cpu6:timer                       4721451          3
cpu7:timer                       4554394          3
cpu4:timer                       8397125          5
cpu5:timer                       6164274          4
Total                          213891822        146


--
Best regards,
Mike                          mailto:mike@tkac...

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