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2023-06-06 - 18:19

x86 Intel Xeon E5-2650Lv2 @1700 MHz, Linux 6.1.19-rt8 (Profile)

Latency plot of system in rack #6, slot #0
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Up99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rack6slot0.osadl.org (updated Tue Jun 06, 2023 13:02:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166199243240,2cyclictest0-21swapper/2512:15:2618
166199243240,2cyclictest0-21swapper/2512:15:2518
166199243240,2cyclictest0-21swapper/2512:15:2518
1655992151,208cyclictest0-21swapper/2112:20:2514
1655992151,208cyclictest0-21swapper/2112:20:2414
165599205165,34cyclictest0-21swapper/2111:06:5114
165599205165,34cyclictest0-21swapper/2111:06:5014
165599205165,34cyclictest0-21swapper/2111:06:5014
164399204172,30cyclictest0-21swapper/1108:45:403
164399204172,30cyclictest0-21swapper/1108:45:403
164399204172,28cyclictest0-21swapper/1110:54:423
164399204172,28cyclictest0-21swapper/1110:54:423
164399204172,28cyclictest0-21swapper/1110:54:423
164399203173,23cyclictest0-21swapper/1112:25:183
164399203173,23cyclictest0-21swapper/1112:25:183
164399202117,82cyclictest18940-21CPU3
164399202117,82cyclictest18940-21CPU3
164399202117,82cyclictest18940-21CPU3
164399200141,53cyclictest0-21swapper/1109:19:553
164399200141,53cyclictest0-21swapper/1109:19:553
164399200141,53cyclictest0-21swapper/1109:19:553
163399200184,10cyclictest11189-21CPU1
163399200184,10cyclictest11189-21CPU1
163399200184,10cyclictest11189-21CPU1
1655991980,78cyclictest0-21swapper/2109:25:1314
1655991980,78cyclictest0-21swapper/2109:25:1314
1655991980,78cyclictest0-21swapper/2109:25:1314
1655991961,108cyclictest3889-21qemu-system-x8607:25:2714
1655991961,108cyclictest3889-21qemu-system-x8607:25:2714
164399196125,64cyclictest0-21swapper/1112:35:213
164399196125,64cyclictest0-21swapper/1112:35:213
164399196125,64cyclictest0-21swapper/1112:35:213
164399195159,33cyclictest0-21swapper/1109:11:383
164399195159,33cyclictest0-21swapper/1109:11:383
164399195159,33cyclictest0-21swapper/1109:11:383
164399194125,65cyclictest11080-21CPU3
164399194125,65cyclictest11080-21CPU3
166399192188,2cyclictest0-21swapper/2709:47:5720
166399192188,2cyclictest0-21swapper/2709:47:5720
166399192188,2cyclictest0-21swapper/2709:47:5720
164399192169,21cyclictest0-21swapper/1112:30:373
164399192169,21cyclictest0-21swapper/1112:30:373
167499191149,33cyclictest0-21swapper/3409:23:5028
167499191149,33cyclictest0-21swapper/3409:23:5028
167499191149,33cyclictest0-21swapper/3409:23:4928
163699191179,11cyclictest0-21swapper/412:29:4134
163699191179,11cyclictest0-21swapper/412:29:4134
165599190164,23cyclictest0-21swapper/2109:34:2014
165599190164,23cyclictest0-21swapper/2109:34:2014
165699188174,11cyclictest0-21swapper/2210:45:5515
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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