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2026-03-15 - 13:53
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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 Sun Mar 15, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
197512285259,17sleep20-21swapper/219:05:332
199762273243,19sleep00-21swapper/019:08:130
200552262230,21sleep10-21swapper/119:09:141
198202256226,20sleep30-21swapper/319:06:283
54832670,0sleep30-21swapper/300:21:493
103102630,0sleep00-21swapper/000:05:150
141002590,0sleep10-21swapper/120:05:121
117842560,0sleep10-21swapper/100:05:491
133332540,0sleep10-21swapper/123:08:231
264892200,0sleep20-21swapper/223:15:452
118392170,0sleep30-21swapper/322:09:223
2023099150,6cyclictest41991ssh23:22:133
167752150,2sleep228-21ksoftirqd/200:28:552
327602140,0sleep10-21swapper/119:35:121
318182140,0sleep00-21swapper/022:01:100
305102140,0sleep110362-21diskmemload22:00:201
2023099142,9cyclictest6380-21df_inode22:25:143
2023099140,9cyclictest23724-21expr22:55:113
2023099140,9cyclictest1900-21ssh22:03:063
2023099140,11cyclictest29069-21uname21:40:153
2023099140,11cyclictest25671-21ssh00:34:263
2023099140,11cyclictest19120-21seq22:13:363
2023099140,10cyclictest23092-21ssh21:36:213
20226991413,1cyclictest28-21ksoftirqd/200:00:002
252192130,0sleep10-21swapper/100:14:501
2023099131,9cyclictest12332-21ssh00:06:143
2023099130,9cyclictest22491-21ssh00:12:443
2023099130,8cyclictest3528-21rm00:00:463
2023099130,8cyclictest32534-21basename20:45:143
2023099130,8cyclictest31692-21rm00:37:403
2023099130,8cyclictest25742-21threads23:15:233
2023099130,8cyclictest23356-21ssh23:53:543
2023099130,7cyclictest26336-21sh21:58:203
2023099130,10cyclictest31845-21chrt21:22:243
2023099130,10cyclictest28290-21ssh00:15:493
2023099130,10cyclictest28197-21ssh23:56:153
2023099130,10cyclictest25620-21ssh22:16:593
2023099130,10cyclictest23803-21expr19:15:153
2023099130,10cyclictest23280-21basename20:25:153
2023099130,10cyclictest21227-21ssh22:53:493
2023099130,10cyclictest21059-21basename19:10:153
2023099130,10cyclictest14258-21ssh00:27:003
2023099130,10cyclictest13880-21ssh21:30:523
2023099130,10cyclictest13595-21ssh23:47:443
2023099130,10cyclictest1230-21ssh22:41:173
2023099126,5cyclictest34-21ksoftirqd/319:55:003
2023099121,10cyclictest1717-21apt20:50:123
2023099120,9cyclictest9098-21ssh22:45:483
2023099120,9cyclictest5757-21ssh21:45:193
2023099120,9cyclictest5360-21ssh21:25:373
2023099120,9cyclictest499-21ssh23:40:103
2023099120,9cyclictest32112-21ssh22:20:353
2023099120,9cyclictest21674-21ssh21:15:563
2023099120,9cyclictest16811-21ssh22:30:573
2023099120,9cyclictest13489-21ssh23:28:013
2023099120,9cyclictest10630-21chrt19:56:283
2023099120,8cyclictest19768-21ssh23:31:283
2023099120,7cyclictest31394-21ssh23:00:083
2023099120,7cyclictest25425-21sh22:36:163
2023099120,7cyclictest17497-21ls23:10:203
2023099120,7cyclictest15566-21ssh21:51:223
2023099120,7cyclictest13190-21ssh21:10:483
2023099120,7cyclictest12759-21ssh23:07:563
2023099120,6cyclictest25551-21cat23:35:163
2022699129,2cyclictest28-21ksoftirqd/223:40:002
2022699129,2cyclictest28-21ksoftirqd/222:40:012
20226991211,1cyclictest28-21ksoftirqd/222:35:012
262522110,0sleep10-21swapper/123:55:161
2023099111,9cyclictest8394-21apt-get21:05:103
2023099110,7cyclictest30277-21grep19:30:143
2023099110,6cyclictest4762-21missed_timers20:55:163
2023099110,10cyclictest24878-21apt-get20:30:123
2023099110,10cyclictest20436-21apt-get20:20:113
2023099110,10cyclictest18188-21apt-get20:15:123
2022699118,2cyclictest28-21ksoftirqd/222:10:022
2022699112,1cyclictest141rcu_preempt21:45:012
20226991110,1cyclictest28-21ksoftirqd/221:20:012
20226991110,1cyclictest28-21ksoftirqd/221:15:012
2023099100,9cyclictest0-21swapper/321:00:113
2023099100,9cyclictest0-21swapper/320:05:103
2023099100,6cyclictest25506-21/usr/sbin/munin19:20:133
2022699109,1cyclictest28-21ksoftirqd/219:15:002
2022699108,1cyclictest28-21ksoftirqd/223:05:002
202309992,6cyclictest658-21snmpd19:25:063
202309990,8cyclictest4539-21seq19:45:133
202309990,8cyclictest29103-21cron20:40:013
202309990,8cyclictest16997-21awk20:10:173
202309990,8cyclictest0-21swapper/320:40:123
202309990,8cyclictest0-21swapper/320:00:113
202309990,6cyclictest1685-21taskset19:35:583
202269998,1cyclictest28-21ksoftirqd/223:10:012
202269998,1cyclictest28-21ksoftirqd/222:45:012
202269998,1cyclictest28-21ksoftirqd/222:00:012
202269998,1cyclictest28-21ksoftirqd/221:00:002
202269998,1cyclictest28-21ksoftirqd/219:30:012
202269998,1cyclictest28-21ksoftirqd/200:34:592
202269997,2cyclictest28-21ksoftirqd/223:55:002
202269997,2cyclictest28-21ksoftirqd/222:20:022
202269997,2cyclictest28-21ksoftirqd/200:15:012
202269996,2cyclictest28-21ksoftirqd/220:40:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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