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2026-04-06 - 12:42
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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
Characteristics of the highest latencies:
System rack2slot0.osadl.org (updated Mon Apr 06, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
145002710,0sleep20-21swapper/222:09:442
175712620,0sleep00-21swapper/000:08:090
282362590,0sleep30-21swapper/321:31:523
223492580,1sleep3401ktimersoftd/323:08:343
285332550,0sleep328531-21sshd21:15:473
12642550,0sleep10-21swapper/100:09:391
62412540,1sleep031653-21kworker/0:423:25:160
283302540,0sleep20-21swapper/223:36:272
180632540,0sleep10-21swapper/122:31:181
286892530,1sleep01-21systemd22:10:580
24602530,0sleep20-21swapper/223:46:002
149072520,1sleep30-21swapper/322:58:433
30112510,0sleep00-21swapper/022:05:330
261282510,0sleep20-21swapper/221:55:422
248522510,0sleep10-21swapper/121:15:201
256912500,0sleep325687-21bash21:40:373
81862490,0sleep10-21swapper/122:24:131
42502490,0sleep30-21swapper/323:03:483
42502490,0sleep30-21swapper/323:03:483
22522410,1sleep1241ktimersoftd/123:18:521
22522410,1sleep1241ktimersoftd/123:18:521
252872380,0sleep10-21swapper/122:44:191
2711523012,7sleep30-21swapper/319:07:383
2698622515,6sleep10-21swapper/119:05:591
2719322311,7sleep20-21swapper/219:08:372
234512230,0sleep123454-21bash23:26:571
42192220,0sleep30-21swapper/322:23:523
2703222211,7sleep00-21swapper/019:06:350
280552180,1sleep2674-21dbus-daemon23:18:142
280552180,1sleep2674-21dbus-daemon23:18:132
236682180,1sleep323662-21lspci23:14:493
27440991716,0cyclictest6441-21lspci22:11:553
241452170,1sleep1674-21dbus-daemon21:52:331
8432160,1sleep2833-21sshd22:48:092
284422160,0sleep20-21swapper/223:33:312
27432991615,0cyclictest7088-21lspci00:04:192
244452160,1sleep324444-21grepconf.sh23:27:033
30602150,0sleep10-21swapper/122:35:591
27432991515,0cyclictest527-40kipmi021:27:202
27432991514,0cyclictest321ktimersoftd/200:05:062
246002150,0sleep10-21swapper/121:55:331
92232140,0sleep20-21swapper/222:58:102
8842140,0sleep10-21swapper/122:51:131
27432991413,0cyclictest321ktimersoftd/222:18:312
220812140,0sleep00-21swapper/022:37:490
207082140,0sleep10-21swapper/122:56:091
146012140,0sleep30-21swapper/322:43:173
27440991312,0cyclictest9068-21lspci23:22:313
27440991311,1cyclictest6094-21lspci00:07:073
27432991311,1cyclictest699-21gdbus22:51:162
27432991311,1cyclictest321ktimersoftd/222:35:562
2743299130,0cyclictest32118-21kworker/u8:122:23:562
2742399130,12cyclictest29621-21lspci23:12:191
2742399130,12cyclictest0-21swapper/122:11:391
2744099129,2cyclictest0-21swapper/300:37:463
27440991211,0cyclictest0-21swapper/300:27:263
2744099120,1cyclictest649-21polkitd22:28:463
2743299129,2cyclictest1-21systemd00:11:262
2743299125,1cyclictest33-21ksoftirqd/221:42:492
2743299124,1cyclictest33-21ksoftirqd/223:00:322
2743299124,1cyclictest33-21ksoftirqd/223:00:312
2743299124,1cyclictest33-21ksoftirqd/221:46:562
2743299124,1cyclictest33-21ksoftirqd/221:46:552
2743299123,3cyclictest33-21ksoftirqd/222:44:282
27432991212,0cyclictest321ktimersoftd/220:40:092
2743299120,1cyclictest642-21systemd-logind21:35:372
2743299120,1cyclictest642-21systemd-logind21:35:362
2743299120,1cyclictest1073-21nfsd22:29:062
2743299120,11cyclictest15692-21sshd00:22:372
2743299120,11cyclictest1-21systemd23:27:062
2742399120,11cyclictest5520-21sshd00:24:391
27419991210,1cyclictest698-21gdbus23:46:020
27419991210,1cyclictest17902-21sshd23:23:220
2741999120,11cyclictest31763-21grep23:57:430
2741999120,11cyclictest19471-21sshd22:56:020
2741999120,11cyclictest1-21systemd21:58:220
2741999120,11cyclictest0-21swapper/000:31:120
2741999120,11cyclictest0-21swapper/000:24:030
177512120,1sleep317734-21sshd23:41:303
160622120,0sleep10-21swapper/100:25:291
115212120,1sleep2674-21dbus-daemon00:19:212
35992110,0sleep10-21swapper/123:58:061
27440991110,0cyclictest26130-21lspci22:07:463
2744099110,10cyclictest75750irq/24-eno1-rx-21:54:063
2744099110,10cyclictest0-21swapper/323:54:163
2744099110,10cyclictest0-21swapper/300:03:063
2743299119,1cyclictest33-21ksoftirqd/200:25:302
2743299113,1cyclictest33-21ksoftirqd/221:21:442
2743299112,3cyclictest33-21ksoftirqd/223:09:142
2743299111,1cyclictest33-21ksoftirqd/222:11:002
2743299111,1cyclictest131rcu_sched21:20:012
27432991110,0cyclictest0-21swapper/221:52:262
2743299110,1cyclictest121rcu_preempt23:50:042
2743299110,10cyclictest0-21swapper/223:57:262
2743299110,10cyclictest0-21swapper/221:33:362
2743299110,0cyclictest25219-21sshd00:38:062
2743299110,0cyclictest0-21swapper/222:34:162
2742399119,1cyclictest22992-21grepconf.sh23:05:281
27423991110,0cyclictest0-21swapper/100:36:581
2742399110,10cyclictest0-21swapper/121:42:281
2741999119,1cyclictest22562-21lspci23:50:520
27419991110,0cyclictest0-21swapper/023:19:220
27419991110,0cyclictest0-21swapper/023:19:220
27419991110,0cyclictest0-21swapper/021:45:130
27419991110,0cyclictest0-21swapper/021:45:120
2741999110,10cyclictest0-21swapper/021:16:520
2744099109,0cyclictest0-21swapper/323:59:063
2744099109,0cyclictest0-21swapper/323:38:563
2744099109,0cyclictest0-21swapper/322:37:063
2744099109,0cyclictest0-21swapper/322:33:563
2744099109,0cyclictest0-21swapper/321:10:463
2744099100,9cyclictest0-21swapper/320:20:263
2743299109,1cyclictest321ktimersoftd/219:56:592
2743299108,1cyclictest33-21ksoftirqd/223:20:362
2743299104,3cyclictest33-21ksoftirqd/200:30:122
2743299101,2cyclictest33-21ksoftirqd/223:40:532
27432991010,0cyclictest321ktimersoftd/220:24:152
2743299100,9cyclictest0-21swapper/219:27:452
2743299100,1cyclictest121rcu_preempt22:01:132
2743299100,0cyclictest121rcu_preempt23:11:262
2742399109,0cyclictest0-21swapper/123:31:391
2742399109,0cyclictest0-21swapper/123:23:081
2742399108,1cyclictest0-21swapper/121:20:481
2742399100,0cyclictest0-21swapper/123:53:281
2741999109,0cyclictest0-21swapper/022:25:530
2741999109,0cyclictest0-21swapper/022:04:230
2741999109,0cyclictest0-21swapper/021:51:120
2741999109,0cyclictest0-21swapper/021:32:230
2741999109,0cyclictest0-21swapper/021:27:320
2741999100,0cyclictest0-21swapper/023:08:320
2741999100,0cyclictest0-21swapper/022:50:230
2741999100,0cyclictest0-21swapper/022:16:420
2741999100,0cyclictest0-21swapper/000:36:230
274409997,1cyclictest26265-21sshd21:23:363
274409991,1cyclictest131rcu_sched22:53:573
274409991,0cyclictest131rcu_sched22:49:063
274329999,0cyclictest321ktimersoftd/221:06:552
274329999,0cyclictest321ktimersoftd/221:04:142
274329999,0cyclictest321ktimersoftd/219:24:112
274329998,0cyclictest0-21swapper/220:53:472
274329991,1cyclictest33-21ksoftirqd/221:11:442
274239998,0cyclictest0-21swapper/122:02:281
274239998,0cyclictest0-21swapper/100:17:281
274239997,1cyclictest10265-21lspci23:46:441
274239990,3cyclictest642-21systemd-logind00:33:191
274199998,0cyclictest0-21swapper/023:31:530
274199998,0cyclictest0-21swapper/022:20:420
274199997,1cyclictest674-21dbus-daemon22:34:120
274199996,2cyclictest674-21dbus-daemon23:41:250
274199991,4cyclictest674-21dbus-daemon22:49:590
274409987,0cyclictest0-21swapper/322:02:063
274409987,0cyclictest0-21swapper/321:56:073
274409986,1cyclictest674-21dbus-daemon23:19:573
274409986,1cyclictest674-21dbus-daemon23:19:563
274409986,1cyclictest41-21ksoftirqd/321:35:283
274409986,1cyclictest41-21ksoftirqd/321:35:273
274409986,1cyclictest41-21ksoftirqd/320:20:003
274409985,2cyclictest660-21avahi-daemon23:48:313
274409985,2cyclictest660-21avahi-daemon21:47:423
274409985,2cyclictest660-21avahi-daemon21:47:423
274409985,2cyclictest660-21avahi-daemon00:33:433
274409985,2cyclictest660-21avahi-daemon00:20:593
274409985,2cyclictest660-21avahi-daemon00:15:423
274409985,2cyclictest660-21avahi-daemon00:10:083
274329988,0cyclictest321ktimersoftd/220:55:322
274329988,0cyclictest321ktimersoftd/220:36:282
274329988,0cyclictest321ktimersoftd/220:25:362
274329988,0cyclictest321ktimersoftd/219:16:102
274329987,0cyclictest0-21swapper/220:15:462
274329987,0cyclictest0-21swapper/220:02:472
274329980,7cyclictest1637-21kworker/2:219:35:222
274239987,0cyclictest0-21swapper/123:40:581
274239987,0cyclictest0-21swapper/123:00:391
274239987,0cyclictest0-21swapper/123:00:381
274239987,0cyclictest0-21swapper/121:31:391
274239987,0cyclictest0-21swapper/121:26:481
274239985,2cyclictest660-21avahi-daemon22:19:341
274239985,2cyclictest660-21avahi-daemon22:06:551
274239985,2cyclictest660-21avahi-daemon21:47:471
274239985,2cyclictest660-21avahi-daemon21:47:461
274239984,3cyclictest674-21dbus-daemon22:29:481
274239984,3cyclictest660-21avahi-daemon00:14:571
274239981,1cyclictest10867-21sshd21:36:231
274239981,1cyclictest10867-21sshd21:36:231
274199987,0cyclictest0-21swapper/000:26:020
274199986,1cyclictest3420-21grep21:20:390
274199986,1cyclictest0-21swapper/000:18:520
274199985,2cyclictest674-21dbus-daemon23:39:580
274199985,2cyclictest660-21avahi-daemon23:02:440
274199985,2cyclictest660-21avahi-daemon23:02:440
274199985,2cyclictest660-21avahi-daemon21:35:510
274199985,2cyclictest660-21avahi-daemon21:35:510
274199984,3cyclictest649-21polkitd23:11:560
274199980,4cyclictest1655-21munin-run19:25:000
274409974,2cyclictest660-21avahi-daemon23:30:333
274409974,2cyclictest660-21avahi-daemon21:25:263
274409974,1cyclictest41-21ksoftirqd/322:15:173
274329977,0cyclictest321ktimersoftd/220:46:302
274329977,0cyclictest321ktimersoftd/220:30:272
274329977,0cyclictest321ktimersoftd/219:53:382
274329970,1cyclictest29395-21latency_hist19:15:012
274239975,1cyclictest660-21avahi-daemon21:11:371
274239974,2cyclictest660-21avahi-daemon22:47:321
274239973,3cyclictest674-21dbus-daemon23:36:371
274239973,3cyclictest12008-21sshd00:01:471
274199976,1cyclictest19384-21lspci22:40:350
274199976,0cyclictest0-21swapper/020:35:020
274199975,1cyclictest663-21ModemManager21:40:240
274199975,1cyclictest660-21avahi-daemon00:11:170
274199975,1cyclictest642-21systemd-logind00:02:590
274199974,2cyclictest699-21gdbus21:10:560
274409964,1cyclictest404-21grep19:20:143
274409963,2cyclictest1002-21snmpd20:57:363
274409963,2cyclictest1002-21snmpd20:54:133
274409963,2cyclictest1002-21snmpd20:45:423
274409963,2cyclictest1002-21snmpd20:36:383
274409963,2cyclictest1002-21snmpd19:48:283
274409963,2cyclictest1002-21snmpd19:39:233
274409963,2cyclictest1002-21snmpd19:31:253
274409960,5cyclictest0-21swapper/319:40:263
274329965,0cyclictest0-21swapper/220:14:162
274329965,0cyclictest0-21swapper/220:08:262
274329965,0cyclictest0-21swapper/219:34:052
274329960,5cyclictest0-21swapper/219:42:362
274239964,1cyclictest674-21dbus-daemon20:25:001
274239963,2cyclictest1002-21snmpd20:25:441
274239962,1cyclictest0-21swapper/120:17:271
274239960,5cyclictest0-21swapper/121:06:091
274199965,0cyclictest0-21swapper/020:00:020
274199965,0cyclictest0-21swapper/019:31:220
274199965,0cyclictest0-21swapper/019:11:420
274199964,1cyclictest674-21dbus-daemon21:09:580
274199964,1cyclictest649-21polkitd19:30:010
274199963,2cyclictest699-21gdbus19:45:000
274199960,5cyclictest28157-21munin-run20:30:000
274199960,5cyclictest0-21swapper/020:53:220
274199960,5cyclictest0-21swapper/020:18:030
274409954,0cyclictest0-21swapper/319:58:063
274409953,1cyclictest459-21cat20:40:123
274409953,1cyclictest41-21ksoftirqd/319:15:013
274409953,1cyclictest1705-21sendmail20:25:293
274409953,1cyclictest1002-21snmpd21:05:123
274409953,1cyclictest1002-21snmpd21:00:273
274409953,1cyclictest1002-21snmpd20:30:383
274409953,1cyclictest1002-21snmpd20:05:563
274409953,1cyclictest1002-21snmpd19:51:583
274409953,1cyclictest1002-21snmpd19:29:343
274409953,1cyclictest1002-21snmpd19:17:123
274409950,4cyclictest20553-21gltestperf20:10:123
274329952,2cyclictest1002-21snmpd19:46:012
274239953,1cyclictest649-21polkitd20:45:001
274239953,1cyclictest6464-21cat19:35:131
274239953,1cyclictest4666-21cat20:50:141
274239953,1cyclictest28088-21cat19:10:131
274239953,1cyclictest18690-21cat20:05:131
274239953,1cyclictest16488-21gltestperf20:00:121
274239953,1cyclictest1636-21kworker/1:019:32:171
274239953,1cyclictest1002-21snmpd21:00:451
274239953,1cyclictest1002-21snmpd20:41:011
274239953,1cyclictest1002-21snmpd19:55:011
274239953,1cyclictest1002-21snmpd19:51:081
274239953,1cyclictest1002-21snmpd19:49:041
274239953,1cyclictest1002-21snmpd19:44:371
274239953,1cyclictest1002-21snmpd19:22:401
274239953,1cyclictest1002-21snmpd19:15:271
274239950,4cyclictest0-21swapper/120:13:181
274239950,1cyclictest30422-21/usr/sbin/munin20:35:161
274199954,0cyclictest0-21swapper/019:37:420
274199953,1cyclictest649-21polkitd19:55:010
274199953,1cyclictest646-21lsmd20:11:150
274199953,1cyclictest28870-21cat20:30:120
274199953,1cyclictest24795-21cat20:20:120
274199953,1cyclictest1082-21lldpd21:01:090
274199953,1cyclictest10501-21cat19:45:130
274199953,1cyclictest1002-21snmpd20:55:030
274199953,1cyclictest1002-21snmpd19:55:040
274199953,1cyclictest1002-21snmpd19:18:570
274199952,2cyclictest1002-21snmpd20:40:340
274199950,4cyclictest3557-21sshd20:45:270
274199950,0cyclictest0-21swapper/020:09:120
274409942,1cyclictest16615-21if_eno220:00:133
274239942,1cyclictest6354-21grep20:55:101
274239942,1cyclictest28494-21tr20:30:101
274239942,1cyclictest2113-21expr19:25:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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