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2023-05-31 - 07:23

x86 Intel Core i7-950 @3.06 GHz, Linux 2.6.33.7.2-rt30-32 (Profile)

Latency plot of system in rack #b, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: ondemand
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot5.osadl.org (updated Wed May 31, 2023 00:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2291822827sleep20-21swapper19:39:132
1518622827sleep20-21swapper18:25:182
1239422827sleep20-21swapper19:21:522
1494022727sleep30-21swapper21:28:143
399622626sleep40-21swapper22:08:094
3100022625sleep20-21swapper19:54:582
2520122625sleep30-21swapper21:44:553
2320122625sleep30-21swapper19:43:063
1936922623sleep4572-21md0_raid123:34:124
1458322625sleep30-21swapper23:28:193
2783522525sleep60-21swapper22:52:206
2352622525sleep70-21swapper20:43:297
1249422521sleep70-21swapper18:20:117
952122423sleep20-21swapper19:14:082
928222423sleep20-21swapper20:13:542
908522423sleep20-21swapper21:14:132
908422423sleep10-21swapper21:14:121
885822423sleep20-21swapper22:14:072
883522423sleep20-21swapper23:16:412
681322423sleep20-21swapper19:08:482
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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