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2026-04-15 - 11:57
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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 376 highest latencies:
System rack2slot0.osadl.org (updated Wed Apr 15, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2476921020,0sleep3391rcuc/322:52:263
222422840,2sleep31960399cyclictest22:57:473
261282750,0sleep10-21swapper/122:19:241
21752750,1sleep12174-21sshd21:41:241
77572740,1sleep1231rcuc/123:46:281
298932730,0sleep30-21swapper/321:38:173
26552580,0sleep30-21swapper/323:35:013
180672570,1sleep218068-21bash21:45:282
232612560,0sleep20-21swapper/223:39:322
204112560,0sleep00-21swapper/023:58:440
77772520,0sleep10-21swapper/122:39:591
210902520,0sleep30-21swapper/322:18:593
178302520,2sleep01958099cyclictest00:12:220
47932510,0sleep30-21swapper/322:45:133
216832510,0sleep00-21swapper/000:37:450
48042500,0sleep20-21swapper/221:33:232
294362500,0sleep30-21swapper/323:12:173
210612500,0sleep00-21swapper/022:49:240
290422490,0sleep1241ktimersoftd/123:12:151
253122490,0sleep1241ktimersoftd/122:27:371
316802480,0sleep231681-21grep22:17:062
12662480,0sleep10-21swapper/122:55:581
22312470,0sleep21959999cyclictest00:36:042
34182460,0sleep00-21swapper/022:00:480
290032450,0sleep30-21swapper/323:40:013
184702450,0sleep00-21swapper/000:15:150
1917624028,7sleep30-21swapper/319:06:213
194422269,6sleep00-21swapper/019:09:430
1910122311,7sleep20-21swapper/219:05:242
191792219,7sleep10-21swapper/119:06:231
273542200,0sleep0111rcuc/022:11:100
104482200,0sleep00-21swapper/021:14:340
153112180,2sleep01958099cyclictest23:41:340
262002170,0sleep10-21swapper/121:28:141
19603991714,2cyclictest660-21avahi-daemon00:19:233
84332160,0sleep10-21swapper/121:33:421
70692160,1sleep27065-21mailstats00:00:182
179022160,0sleep20-21swapper/200:23:332
165572160,0sleep10-21swapper/100:12:151
138862160,0sleep10-21swapper/123:33:101
236132150,0sleep10-21swapper/122:13:391
230292150,0sleep00-21swapper/021:23:560
20222150,1sleep22023-21bash22:42:132
105342150,0sleep20-21swapper/221:55:542
210512140,0sleep10-21swapper/100:37:421
179682140,0sleep20-21swapper/221:51:022
145012140,0sleep00-21swapper/023:33:130
208012130,0sleep00-21swapper/022:54:560
1958099130,1cyclictest0-21swapper/000:23:500
1958099130,0cyclictest0-21swapper/000:34:000
172422130,0sleep00-21swapper/022:35:130
310992120,2sleep31960399cyclictest21:32:443
1960399120,1cyclictest5584-21sshd00:28:033
1960399120,11cyclictest26873-21sshd00:02:033
1960399120,11cyclictest18176-21grep21:40:033
1960399120,11cyclictest0-21swapper/322:33:133
19599991211,0cyclictest21510-21lspci22:24:332
19599991210,1cyclictest29839-21lspci22:55:372
19599991210,1cyclictest17551-21lspci23:58:292
1959999120,11cyclictest1345-21sshd21:13:272
1959999120,11cyclictest1-21systemd22:03:262
1959999120,11cyclictest0-21swapper/221:43:562
1959199129,0cyclictest32342-21lspci00:24:491
19591991211,0cyclictest241ktimersoftd/123:26:291
19591991210,1cyclictest8679-21lspci23:43:491
1959199120,1cyclictest6432-21lspci22:06:391
1959199120,11cyclictest9636-21sshd22:40:081
1959199120,11cyclictest1-21systemd21:50:281
19580991210,1cyclictest18261-21bash00:09:400
19580991210,1cyclictest12685-21sshd22:29:200
1958099120,11cyclictest11786-21grepconf.sh21:58:500
156772120,0sleep2311rcuc/223:33:192
1960399110,10cyclictest0-21swapper/321:25:143
1960399110,10cyclictest0-21swapper/300:35:043
1960399110,0cyclictest0-21swapper/323:48:343
1960399110,0cyclictest0-21swapper/321:53:443
1959999110,10cyclictest0-21swapper/223:46:572
1959999110,10cyclictest0-21swapper/223:20:472
1959999110,0cyclictest30378-21sshd23:17:562
1959999110,0cyclictest0-21swapper/221:29:572
1959199119,1cyclictest0-21swapper/122:51:081
1959199110,1cyclictest31356-21bash22:47:281
1959199110,10cyclictest231rcuc/122:31:091
1959199110,10cyclictest0-21swapper/123:38:281
1959199110,10cyclictest0-21swapper/122:22:381
1959199110,10cyclictest0-21swapper/100:07:081
1958099110,10cyclictest0-21swapper/023:51:300
1958099110,10cyclictest0-21swapper/022:08:310
1958099110,0cyclictest0-21swapper/021:44:110
142392110,0sleep214167-21sshd21:22:492
224962100,0sleep10-21swapper/100:26:421
1960399109,0cyclictest0-21swapper/323:56:333
1960399109,0cyclictest0-21swapper/323:25:133
1960399109,0cyclictest0-21swapper/323:03:433
1960399109,0cyclictest0-21swapper/322:42:143
1960399109,0cyclictest0-21swapper/322:05:033
1960399100,0cyclictest0-21swapper/322:13:533
1960399100,0cyclictest0-21swapper/300:23:433
1959999109,0cyclictest0-21swapper/223:28:262
1959999109,0cyclictest0-21swapper/222:08:172
1959999109,0cyclictest0-21swapper/221:05:162
1959999109,0cyclictest0-21swapper/219:54:562
1959999108,1cyclictest7616-21sshd22:34:272
1959999100,1cyclictest18000-21ntpdc22:35:152
1959999100,0cyclictest131rcu_sched00:25:132
1959999100,0cyclictest0-21swapper/223:11:262
1959199109,0cyclictest0-21swapper/122:01:481
1959199109,0cyclictest0-21swapper/121:56:081
1959199109,0cyclictest0-21swapper/121:19:181
1959199108,1cyclictest26725-21lspci00:15:561
1959199100,0cyclictest0-21swapper/121:36:081
1959199100,0cyclictest0-21swapper/121:24:481
1959199100,0cyclictest0-21swapper/100:02:491
1958099109,0cyclictest0-21swapper/022:55:010
1958099109,0cyclictest0-21swapper/021:27:500
1958099108,1cyclictest9-21ksoftirqd/023:20:000
1958099108,1cyclictest9-21ksoftirqd/000:00:280
1958099108,1cyclictest10342-21sshd21:53:100
1958099108,1cyclictest0-21swapper/021:45:200
1958099100,1cyclictest17244-21ntp_states21:15:190
130032100,1sleep3699-21gdbus22:01:403
9607290,1sleep3391rcuc/321:58:393
196039998,0cyclictest0-21swapper/323:20:233
196039998,0cyclictest0-21swapper/322:27:533
196039998,0cyclictest0-21swapper/321:19:433
196039998,0cyclictest0-21swapper/319:28:233
196039998,0cyclictest0-21swapper/300:10:443
196039997,1cyclictest0-21swapper/323:17:333
196039996,2cyclictest660-21avahi-daemon23:39:343
195999998,0cyclictest707-21lspci23:51:252
195999998,0cyclictest0-21swapper/200:30:262
195999998,0cyclictest0-21swapper/200:18:362
195999997,1cyclictest674-21dbus-daemon22:52:462
195999997,1cyclictest4241-21grep23:40:352
195999991,1cyclictest0-21swapper/200:13:262
195999990,1cyclictest20119-21bash23:08:472
195999990,1cyclictest131rcu_sched22:45:102
195919998,0cyclictest8413-21lspci00:31:011
195919998,0cyclictest0-21swapper/123:19:081
195919998,0cyclictest0-21swapper/123:02:281
195919997,1cyclictest9678-21lspci23:05:061
195919996,1cyclictest25-21ksoftirqd/123:22:211
195919991,1cyclictest131rcu_sched21:45:351
195809998,0cyclictest0-21swapper/023:27:000
195809998,0cyclictest0-21swapper/023:03:300
195809998,0cyclictest0-21swapper/022:42:500
195809997,1cyclictest9-21ksoftirqd/023:45:170
195809997,1cyclictest4699-21sshd22:23:050
195809991,1cyclictest131rcu_sched23:36:570
195809990,1cyclictest131rcu_sched23:21:400
195809990,0cyclictest0-21swapper/020:01:100
196039986,1cyclictest2499-21lspci23:07:143
196039985,2cyclictest660-21avahi-daemon22:38:473
196039985,2cyclictest660-21avahi-daemon21:21:493
196039985,2cyclictest660-21avahi-daemon00:30:303
195999986,1cyclictest7588-21lspci23:04:562
195999986,1cyclictest6264-21lspci22:14:582
195999985,2cyclictest660-21avahi-daemon22:29:122
195999985,2cyclictest660-21avahi-daemon00:08:352
195999980,1cyclictest131rcu_sched21:36:492
195919986,1cyclictest674-21dbus-daemon21:12:171
195919986,1cyclictest623-17sedispatch23:54:081
195919980,0cyclictest131rcu_sched23:55:521
195809987,0cyclictest0-21swapper/022:34:410
195809987,0cyclictest0-21swapper/020:30:010
195809985,2cyclictest674-21dbus-daemon21:32:130
195809985,2cyclictest660-21avahi-daemon23:10:040
195809985,2cyclictest660-21avahi-daemon21:35:200
195809985,1cyclictest9-21ksoftirqd/023:09:140
195809984,1cyclictest9-21ksoftirqd/000:25:130
195809980,4cyclictest24392-21munin-run20:40:010
195809980,1cyclictest699-21gdbus22:18:470
196039976,0cyclictest0-21swapper/320:09:233
196039975,1cyclictest660-21avahi-daemon23:50:143
196039975,1cyclictest41-21ksoftirqd/300:07:383
196039974,2cyclictest660-21avahi-daemon22:21:103
196039974,2cyclictest660-21avahi-daemon21:45:243
196039974,2cyclictest660-21avahi-daemon21:10:213
195999975,1cyclictest30383-21kworker/u8:021:17:102
195999970,6cyclictest0-21swapper/219:30:462
195809976,0cyclictest0-21swapper/019:49:100
195809970,0cyclictest0-21swapper/019:23:400
15772270,0sleep0111rcuc/020:15:200
196039964,1cyclictest649-21polkitd21:09:543
196039964,1cyclictest1002-21snmpd20:23:523
196039963,2cyclictest1002-21snmpd20:33:073
196039963,2cyclictest1002-21snmpd20:13:123
196039963,2cyclictest1002-21snmpd20:13:123
195999965,0cyclictest0-21swapper/220:25:362
195999965,0cyclictest0-21swapper/220:00:572
195999965,0cyclictest0-21swapper/219:45:262
195999965,0cyclictest0-21swapper/219:22:472
195999963,2cyclictest1002-21snmpd20:44:132
195999963,2cyclictest1002-21snmpd19:55:452
195999960,5cyclictest0-21swapper/220:47:372
195999960,5cyclictest0-21swapper/220:30:062
195919965,0cyclictest0-21swapper/120:36:091
195919964,1cyclictest19477-21processes20:25:181
195919964,1cyclictest13336-21head20:10:171
195919964,1cyclictest13336-21head20:10:161
195919963,2cyclictest699-21gdbus21:09:461
195919963,2cyclictest1002-21snmpd20:51:581
195919963,2cyclictest1002-21snmpd20:31:341
195919960,5cyclictest0-21swapper/121:04:291
195919960,5cyclictest0-21swapper/119:32:181
195809964,1cyclictest4660-21sshd21:09:560
195809963,2cyclictest1002-21snmpd20:40:580
195809960,5cyclictest0-21swapper/020:11:010
195809960,5cyclictest0-21swapper/020:11:000
20271252,1sleep320430-21cat19:10:143
196039954,0cyclictest0-21swapper/319:20:243
196039953,1cyclictest7094-21cut19:55:153
196039953,1cyclictest699-21gdbus21:00:013
196039953,1cyclictest660-21avahi-daemon20:58:123
196039953,1cyclictest646-21lsmd19:51:113
196039953,1cyclictest19177-21missed_timers20:25:163
196039953,1cyclictest1002-21snmpd20:50:223
196039953,1cyclictest1002-21snmpd20:46:113
196039953,1cyclictest1002-21snmpd20:43:103
196039953,1cyclictest1002-21snmpd20:35:013
196039953,1cyclictest1002-21snmpd20:01:523
196039953,1cyclictest1002-21snmpd19:42:053
196039953,1cyclictest1002-21snmpd19:36:033
196039953,1cyclictest1002-21snmpd19:31:143
196039953,1cyclictest0-21swapper/319:15:173
196039952,2cyclictest15308-21ntpq20:15:173
196039952,2cyclictest1002-21snmpd19:45:033
195999954,0cyclictest0-21swapper/220:52:462
195999954,0cyclictest0-21swapper/220:36:072
195999953,1cyclictest576-21cat19:40:142
195999953,1cyclictest31221-21cat20:55:142
195999953,1cyclictest16966-21cat20:20:142
195999953,1cyclictest14933-21cat20:15:142
195999953,1cyclictest10859-21cat20:05:132
195999953,1cyclictest1082-21lldpd19:35:022
195999953,1cyclictest1002-21snmpd21:01:422
195999953,1cyclictest1002-21snmpd20:12:212
195999953,1cyclictest1002-21snmpd20:12:212
195999953,1cyclictest1002-21snmpd19:28:202
195999953,1cyclictest1002-21snmpd19:16:072
195999950,4cyclictest0-21swapper/219:11:572
195919953,1cyclictest674-21dbus-daemon20:49:591
195919953,1cyclictest646-21lsmd19:50:571
195919953,1cyclictest30984-21cat19:35:151
195919953,1cyclictest26912-21cat19:25:141
195919953,1cyclictest22808-21cat19:15:141
195919953,1cyclictest1088-21ntpd20:15:171
195919953,1cyclictest1002-21snmpd20:57:261
195919953,1cyclictest1002-21snmpd20:20:361
195919953,1cyclictest1002-21snmpd19:58:271
195919953,1cyclictest1002-21snmpd19:41:291
195919953,1cyclictest1002-21snmpd19:21:251
195919952,2cyclictest20112-21gltestperf19:10:131
195919952,2cyclictest12376-21cat20:10:001
195919952,2cyclictest1002-21snmpd20:00:481
195809953,1cyclictest6776-21cat19:55:130
195809953,1cyclictest22353-21/usr/sbin/munin19:15:140
195809953,1cyclictest21044-21cat20:30:120
195809953,1cyclictest1088-21ntpd19:25:170
195809953,1cyclictest1002-21snmpd20:24:150
195809953,1cyclictest1002-21snmpd20:08:570
195809953,1cyclictest1002-21snmpd19:31:350
195809953,1cyclictest1002-21snmpd19:11:020
195809952,2cyclictest674-21dbus-daemon20:50:000
195809952,2cyclictest1002-21snmpd20:56:460
195809952,2cyclictest1002-21snmpd19:51:450
195809952,2cyclictest1002-21snmpd19:38:290
195809951,1cyclictest121rcu_preempt21:04:590
195809950,2cyclictest28453-21latency_hist20:49:590
195919942,1cyclictest24896-21df_inode20:40:131
195919942,1cyclictest22122sleep119:45:101
195809944,0cyclictest30474-21kworker/0:119:40:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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