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2026-03-31 - 07:20
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot7.osadl.org (updated Tue Mar 31, 2026 00:44:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
322629912464,53cyclictest300-21rs:main0
32262991063,30cyclictest10812-21unin-run23:54:110
32262991054,9cyclictest0-21swapper/022:29:250
32262991045,9cyclictest0-21swapper/022:04:270
32262991023,32cyclictest19734-21cstates23:14:240
32262991022,32cyclictest87-21kswapd019:04:140
32262991013,34cyclictest19608-21sh21:24:410
32262991004,8cyclictest0-21swapper/020:49:210
32262991004,8cyclictest0-21swapper/020:49:210
32262991004,89cyclictest0-21swapper/020:29:230
32262991004,85cyclictest18879-21latency_hist21:24:130
32262991003,8cyclictest0-21swapper/019:39:260
32262991003,8cyclictest0-21swapper/019:39:260
32262991003,28cyclictest14493-21ssh23:59:430
32262991003,28cyclictest14493-21ssh23:59:430
32262991002,93cyclictest0-21swapper/000:24:240
3226299994,67cyclictest5028-21runrttasks22:49:320
3226299993,27cyclictest990-21ssh23:37:190
3226299983,11cyclictest0-21swapper/020:19:240
3226299974,8cyclictest0-21swapper/022:34:210
3226299974,7cyclictest0-21swapper/023:54:210
3226299974,7cyclictest0-21swapper/023:54:210
32262999743,47cyclictest0-21swapper/021:59:390
32262999743,47cyclictest0-21swapper/021:59:390
32262999742,47cyclictest0-21swapper/019:34:100
3226299973,8cyclictest0-21swapper/023:04:220
3226299972,27cyclictest5547-21taskset23:44:400
3226299964,84cyclictest0-21swapper/023:19:230
3226299964,84cyclictest0-21swapper/023:19:230
3226299964,80cyclictest16518-21ssh22:14:210
3226299964,80cyclictest16518-21ssh22:14:210
3226299955,8cyclictest0-21swapper/021:44:240
3226299954,9cyclictest0-21swapper/021:39:240
3226299954,9cyclictest0-21swapper/021:39:240
3226299954,9cyclictest0-21swapper/020:44:230
3226299954,9cyclictest0-21swapper/020:44:230
3226299954,83cyclictest7065-21ssh21:04:270
3226299944,9cyclictest0-21swapper/019:14:210
3226299944,78cyclictest0-21swapper/000:09:250
3226299943,33cyclictest13388-21modprobe23:04:090
3226299943,33cyclictest13388-21modprobe23:04:090
3226299943,27cyclictest22525-21taskset20:11:200
3226299943,26cyclictest14120-21awk22:09:390
3226299942,13cyclictest4790-21ssh21:54:410
3226299937,77cyclictest0-21swapper/020:59:280
3226299937,77cyclictest0-21swapper/020:59:280
3226299937,77cyclictest0-21swapper/020:59:280
3226299935,8cyclictest0-21swapper/019:54:220
3226299934,29cyclictest19726-21fschecks_count22:19:320
3226299933,9cyclictest0-21swapper/019:44:220
3226299933,9cyclictest0-21swapper/019:44:220
3226299933,33cyclictest352-21runrttasks21:36:550
3226299933,32cyclictest22405-21/usr/sbin/munin22:24:320
3226299933,32cyclictest22405-21/usr/sbin/munin22:24:320
3226299933,32cyclictest16869-21sh23:09:310
3226299933,32cyclictest16869-21sh23:09:310
32277999262,23cyclictest23025-21kworker/u17:2+events_unbound20:19:092
3226299924,8cyclictest0-21swapper/020:39:240
3226299924,8cyclictest0-21swapper/020:39:240
3226299923,24cyclictest793-21ssh22:42:090
32269999167,18cyclictest16852-21fschecks_count23:09:311
32269999167,18cyclictest16852-21fschecks_count23:09:311
3226299914,31cyclictest2172-21sh23:39:310
3226299914,31cyclictest2172-21sh23:39:310
3226299914,28cyclictest2248-21sh00:34:120
3226299913,9cyclictest0-21swapper/019:49:220
3226299913,30cyclictest23988-21head20:14:460
3226299913,26cyclictest20458-21/usr/sbin/munin20:04:430
32262999132,51cyclictest1429-21acpi21:49:220
3226299913,22cyclictest6818-21latency_hist21:04:120
3226299912,31cyclictest23783-21ssh00:14:430
3226299912,31cyclictest23783-21ssh00:14:430
3226299904,30cyclictest87-21kswapd022:44:260
3226299904,30cyclictest87-21kswapd022:44:260
3226299904,25cyclictest11060-21unixbench_multi21:09:490
3226299903,30cyclictest26690-21/usr/sbin/munin00:19:420
3226299903,27cyclictest5541-21grep19:19:320
3226299903,11cyclictest0-21swapper/019:09:250
3226299903,11cyclictest0-21swapper/019:09:250
3226299902,30cyclictest13018-21/usr/sbin/munin21:14:390
3226299902,29cyclictest8694-21/usr/sbin/munin22:54:450
3226299902,29cyclictest18451-21grep19:59:320
3226299902,26cyclictest22983-21unixbench_multi21:29:470
3226299902,26cyclictest22983-21unixbench_multi21:29:470
32269998968,12cyclictest0-21swapper/123:34:391
3226299895,73cyclictest0-21swapper/020:34:230
3226299893,27cyclictest25502-21/usr/sbin/munin23:24:260
3226299886,10cyclictest0-21swapper/023:29:350
3226299886,10cyclictest0-21swapper/023:29:350
3226299884,31cyclictest7886-21vmstat19:24:490
3226299883,28cyclictest19913-21ssh00:09:120
3226299883,28cyclictest11479-21munin-plugin-st19:39:100
32262998736,43cyclictest0-21swapper/019:04:360
32269998662,17cyclictest3541-21apt-key20:54:141
32269998662,17cyclictest3541-21apt-key20:54:141
32269998646,33cyclictest0-21swapper/100:04:251
3227799853,54cyclictest8121-21apt-get23:49:402
32269998567,11cyclictest0-21swapper/119:34:321
32277998462,14cyclictest2952-21systemd-journal22:01:342
32277998462,14cyclictest2952-21systemd-journal22:01:342
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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