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2026-04-20 - 05:51
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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 rackaslot8.osadl.org (updated Mon Apr 20, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297972302275,18sleep10-21swapper/119:07:531
296852283256,17sleep20-21swapper/219:06:262
296392276213,19sleep00-21swapper/019:05:550
299202254231,15sleep30-21swapper/319:09:293
191972620,0sleep20-21swapper/222:45:412
257112610,0sleep20-21swapper/200:28:432
163302600,0sleep10-21swapper/122:25:131
272662560,0sleep20-21swapper/222:31:152
4612540,0sleep30-21swapper/322:54:543
259022540,0sleep00-21swapper/021:31:430
142812540,0sleep00-21swapper/021:45:000
129492540,0sleep00-21swapper/023:21:260
5912530,0sleep00-21swapper/022:54:590
319122230,0sleep30-21swapper/323:53:043
83542200,2sleep38214-21cstates19:30:133
99932170,0sleep30-21swapper/322:20:393
264652170,0sleep20-21swapper/221:32:082
87272150,0sleep00-21swapper/023:39:130
5322140,0sleep20-21swapper/222:54:582
322702130,0sleep20-21swapper/221:15:502
300659990,8cyclictest6181-21ssh00:35:591
16302290,0sleep30-21swapper/323:43:433
300729984,2cyclictest275-21systemd-journal23:16:203
300709980,5cyclictest16236-21cron22:45:012
300619986,2cyclictest25738-21seq21:12:120
300619984,3cyclictest8385-21df19:30:130
300619982,3cyclictest2425-21grep00:15:000
17590280,0sleep30-21swapper/321:26:403
7432270,1sleep37408-21munin-run20:40:003
300729975,2cyclictest34-21ksoftirqd/321:45:013
300729973,3cyclictest658-21snmpd20:33:113
300729973,3cyclictest31830-21users19:10:203
300729973,3cyclictest275-21systemd-journal19:52:053
300729973,2cyclictest275-21systemd-journal21:06:233
300709973,3cyclictest504-21dbus-daemon00:00:012
300709972,3cyclictest275-21systemd-journal21:54:052
300709971,3cyclictest16966-21apt19:50:022
300659973,3cyclictest658-21snmpd22:01:411
300659973,3cyclictest658-21snmpd22:01:411
300659973,3cyclictest658-21snmpd00:33:271
300659972,3cyclictest2374-21sshd22:16:111
300619973,3cyclictest8928-21ntpq22:20:190
300619973,3cyclictest658-21snmpd23:15:340
300619973,3cyclictest17467-21awk22:45:130
300619973,1cyclictest0-21swapper/023:48:480
300619970,5cyclictest275-21systemd-journal00:00:210
27252270,0sleep10-21swapper/122:11:441
1706270,0sleep10-21swapper/120:25:171
300729965,1cyclictest34-21ksoftirqd/320:05:013
300729963,3cyclictest0-21swapper/322:47:043
300729963,2cyclictest658-21snmpd20:56:483
300729963,2cyclictest658-21snmpd00:18:223
300729963,2cyclictest6264-21ssh21:59:403
300729963,2cyclictest5051-21taskset19:22:513
300729963,2cyclictest504-21dbus-daemon20:11:293
300729963,2cyclictest3537-21sh22:36:343
300729963,2cyclictest32700-21ssh21:35:353
300729963,2cyclictest275-21systemd-journal23:06:323
300729963,2cyclictest275-21systemd-journal00:14:563
300729963,2cyclictest1680-21tune2fs22:55:143
300729963,2cyclictest12358-21ssh22:03:013
300729963,2cyclictest12358-21ssh22:03:013
300729963,2cyclictest10129-21ssh21:22:193
300729963,1cyclictest0-21swapper/323:48:263
300729963,1cyclictest0-21swapper/322:40:023
300729963,1cyclictest0-21swapper/321:53:153
300729963,1cyclictest0-21swapper/300:30:563
300729962,3cyclictest658-21snmpd23:23:053
300729962,3cyclictest658-21snmpd22:25:513
300729962,3cyclictest658-21snmpd21:48:563
300729962,3cyclictest658-21snmpd20:50:243
300729962,3cyclictest658-21snmpd20:04:183
300729962,3cyclictest658-21snmpd19:56:033
300729962,3cyclictest658-21snmpd19:18:553
300729962,3cyclictest31559-21date22:15:023
300729962,3cyclictest275-21systemd-journal21:16:033
300729962,3cyclictest275-21systemd-journal00:28:423
300729962,3cyclictest2653-21cat23:55:123
300729962,3cyclictest2456-21awk20:25:213
300729962,3cyclictest17009-21cat22:05:203
300729962,3cyclictest11120-21df00:00:143
300729962,3cyclictest10517-21cat20:45:133
300729962,3cyclictest10143-21cat23:00:163
300729962,1cyclictest0-21swapper/300:20:033
300729960,5cyclictest8723-21sh23:39:123
300709966,0cyclictest0-21swapper/221:22:002
300709963,3cyclictest1567-21apt-get23:15:102
300709963,2cyclictest658-21snmpd22:13:302
300709963,2cyclictest658-21snmpd21:04:522
300709963,2cyclictest658-21snmpd19:25:552
300709963,2cyclictest658-21snmpd00:07:312
300709963,2cyclictest31603-21ssh23:33:092
300709963,2cyclictest23611-21ssh23:28:212
300709963,2cyclictest20870-21ssh21:48:432
300709963,2cyclictest18499-21ssh22:25:502
300709963,1cyclictest0-21swapper/222:00:302
300709963,1cyclictest0-21swapper/222:00:292
300709962,3cyclictest664-21awk22:15:182
300709962,3cyclictest658-21snmpd23:40:412
300709962,3cyclictest658-21snmpd23:35:172
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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