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2026-03-21 - 04:19
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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 Sat Mar 21, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237242314283,21sleep10-21swapper/119:08:171
236722306277,19sleep20-21swapper/219:07:392
238112262231,20sleep00-21swapper/019:09:240
238092254225,20sleep30-21swapper/319:09:243
10752640,0sleep30-21swapper/300:18:363
295262590,0sleep00-21swapper/000:15:310
138822560,0sleep10-21swapper/123:27:081
65482550,0sleep00-21swapper/022:43:470
288542550,0sleep20-21swapper/221:38:372
252242540,0sleep10-21swapper/100:13:371
251302540,0sleep30-21swapper/319:10:153
212892200,1sleep3331rcuc/300:10:353
294492180,0sleep10-21swapper/122:37:511
89592160,0sleep10-21swapper/100:03:481
89592160,0sleep10-21swapper/100:03:481
278812160,0sleep20-21swapper/200:34:482
119222140,0sleep334-21ksoftirqd/321:28:053
277752120,0sleep00-21swapper/021:37:430
239689992,4cyclictest16462-21basename22:50:012
239639996,2cyclictest22-21ksoftirqd/119:25:011
239639992,4cyclictest1044-21munin-run19:30:011
16725290,0sleep00-21swapper/000:08:280
11309290,0sleep10-21swapper/122:26:341
31005280,0sleep20-21swapper/223:57:032
239719986,1cyclictest0-21swapper/300:36:363
239599983,3cyclictest275-21systemd-journal21:42:110
23984270,0sleep10-21swapper/122:15:091
239719974,2cyclictest11525-21ssh22:26:483
239719973,3cyclictest674-21lldpd21:51:353
239719973,3cyclictest658-21snmpd19:55:113
239719973,1cyclictest0-21swapper/323:26:543
239719973,1cyclictest0-21swapper/323:07:493
239719972,3cyclictest275-21systemd-journal21:12:103
239689973,3cyclictest275-21systemd-journal23:49:312
239639973,3cyclictest658-21snmpd20:53:551
239639973,3cyclictest275-21systemd-journal21:56:361
239639973,3cyclictest275-21systemd-journal21:51:461
239639973,3cyclictest275-21systemd-journal00:08:441
239639973,2cyclictest275-21systemd-journal00:20:011
239599976,1cyclictest12-21ksoftirqd/022:20:020
239599973,3cyclictest658-21snmpd20:38:100
239599973,3cyclictest275-21systemd-journal23:41:500
239599973,3cyclictest275-21systemd-journal19:39:450
239599973,2cyclictest275-21systemd-journal00:30:450
239599973,1cyclictest0-21swapper/023:22:070
239599972,3cyclictest22469-21turbostat21:35:000
239599970,4cyclictest19838-21turbostat00:29:590
23648270,0sleep00-21swapper/022:34:420
21637270,0sleep00-21swapper/021:54:090
14387270,0sleep30-21swapper/300:25:483
14074270,0sleep20-21swapper/223:27:172
7269260,1sleep0131rcuc/021:45:120
622260,0sleep20-21swapper/222:20:132
239719966,0cyclictest0-21swapper/323:15:533
239719966,0cyclictest0-21swapper/322:49:403
239719963,2cyclictest674-21lldpd23:56:363
239719963,2cyclictest663-21runrttasks23:00:203
239719963,2cyclictest5303-21tune2fs20:50:123
239719963,2cyclictest3787-21sh22:41:403
239719963,2cyclictest3650-21ssh23:20:373
239719963,2cyclictest32135-21ssh22:59:303
239719963,2cyclictest30825-21ssh23:37:103
239719963,2cyclictest2911-21sshd19:31:013
239719963,2cyclictest2784-21ssh22:21:123
239719963,2cyclictest275-21systemd-journal23:10:013
239719963,2cyclictest275-21systemd-journal19:15:593
239719963,2cyclictest25244-21ssh21:35:453
239719963,2cyclictest18011-21find20:05:193
239719963,2cyclictest1-21systemd22:32:173
239719963,1cyclictest0-21swapper/300:21:053
239719962,3cyclictest658-21snmpd23:52:403
239719962,3cyclictest658-21snmpd21:03:083
239719962,3cyclictest658-21snmpd20:35:493
239719962,3cyclictest658-21snmpd19:28:503
239719962,3cyclictest658-21snmpd19:20:473
239719962,3cyclictest658-21snmpd00:06:283
239719962,3cyclictest24987-21cat20:20:213
239719962,3cyclictest23533-21expr21:55:133
239719962,3cyclictest19412-21expr20:10:123
239719962,3cyclictest17861-21cut22:50:173
239719962,3cyclictest10552-21expr19:50:133
239719962,1cyclictest0-21swapper/323:46:053
239719962,1cyclictest0-21swapper/323:31:003
239719962,1cyclictest0-21swapper/322:11:343
239719961,4cyclictest23292-21turbostat20:20:013
239719960,6cyclictest0-21swapper/322:17:553
239719960,6cyclictest0-21swapper/321:41:563
239719960,6cyclictest0-21swapper/321:21:143
239719960,5cyclictest23845-21sensors_temp21:15:183
239719960,4cyclictest5135-21sshd19:36:023
239719960,0cyclictest0-21swapper/323:44:313
239719960,0cyclictest0-21swapper/300:33:063
239689966,0cyclictest0-21swapper/222:35:402
239689966,0cyclictest0-21swapper/222:16:102
239689963,2cyclictest9260-21ssh00:04:022
239689963,2cyclictest9260-21ssh00:04:022
239689963,2cyclictest7358-21ssh23:23:302
239689963,2cyclictest7039-21df_inode21:25:112
239689963,2cyclictest658-21snmpd23:37:162
239689963,2cyclictest658-21snmpd00:25:532
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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