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2026-08-03 - 06:50
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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 rack1slot1.osadl.org (updated Mon Aug 03, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262832211172,25sleep30-21swapper/319:08:263
263832203166,24sleep10-21swapper/119:09:461
260812200160,26sleep20-21swapper/219:05:492
242922200163,24sleep00-21swapper/019:05:060
139062800,0sleep10-21swapper/100:04:301
95832710,0sleep00-21swapper/021:40:140
54172640,1sleep35419-21timerwakeupswit23:50:223
123152170,1sleep312319-21fschecks_time19:45:153
2650199140,13cyclictest0-21swapper/222:30:192
2648499132,5cyclictest19133-21latency_hist21:09:590
26501991210,1cyclictest23029-21/usr/sbin/munin22:00:182
2650199120,11cyclictest0-21swapper/220:30:212
2648499119,1cyclictest9-21ksoftirqd/020:45:000
2648499111,5cyclictest20928-21perf20:04:590
2650199100,9cyclictest590-21apt-get23:00:112
2650199100,5cyclictest0-21swapper/220:35:122
5850290,0sleep10-21swapper/100:38:391
28031290,0sleep20-21swapper/222:51:142
265129992,6cyclictest13650irq/124-ahci[0021:30:013
265019998,1cyclictest28-21ksoftirqd/200:40:012
265019992,6cyclictest26475-21cyclictest21:49:232
264849993,1cyclictest30689-21ntp_states22:55:200
265129986,1cyclictest11301-21snmpd23:29:123
265129986,1cyclictest11301-21snmpd21:16:243
265129986,1cyclictest11301-21snmpd19:23:183
265129986,1cyclictest11301-21snmpd00:20:503
265129986,1cyclictest11301-21snmpd00:03:273
265129981,7cyclictest7356-21kworker/u8:100:34:513
265129981,7cyclictest28844-1kworker/u9:223:16:573
265019986,1cyclictest61650irq/122-eno122:06:132
265019986,1cyclictest61650irq/122-eno120:45:162
265019986,1cyclictest61650irq/122-eno100:35:002
265019986,1cyclictest1747-21ntpd22:45:582
265019986,1cyclictest11301-21snmpd21:12:452
265019981,6cyclictest0-21swapper/222:37:022
265019980,7cyclictest0-21swapper/200:01:562
265019980,2cyclictest0-21swapper/200:20:002
264849987,1cyclictest9-21ksoftirqd/021:16:350
264849987,1cyclictest16721-21ssh23:21:070
264849986,1cyclictest11301-21snmpd21:26:420
264849984,2cyclictest240-21systemd-journal20:40:000
264849983,4cyclictest0-21swapper/021:00:120
264849983,1cyclictest28770-21/usr/sbin/munin23:40:170
264849981,6cyclictest24021-21ssh22:45:210
264849980,7cyclictest22260-21ssh21:14:090
264849980,7cyclictest20533-21users22:40:210
265129976,1cyclictest35-21ksoftirqd/321:10:003
265129976,1cyclictest35-21ksoftirqd/321:00:003
265129976,1cyclictest35-21ksoftirqd/300:38:533
265129976,1cyclictest22631-21cat23:30:153
265129976,1cyclictest22563-21ntpq00:15:203
265129976,1cyclictest11301-21snmpd23:46:043
265129976,1cyclictest0-21swapper/320:05:553
265129975,1cyclictest20725-21ssh22:40:563
265129975,1cyclictest1660-21ssh21:30:133
265129975,1cyclictest11301-21snmpd23:07:543
265129974,2cyclictest571-21nscd00:11:443
265129974,1cyclictest240-21systemd-journal22:25:003
265129972,2cyclictest0-21swapper/322:45:113
265129970,4cyclictest14425-21aten2.4-expect00:05:143
265129970,3cyclictest23194-21aten2.4-expect22:00:133
265129970,2cyclictest0-21swapper/322:34:213
265129970,2cyclictest0-21swapper/320:00:223
265129970,1cyclictest1148-21/usr/sbin/munin22:15:123
265019976,1cyclictest61650irq/122-eno123:55:112
265019976,1cyclictest61650irq/122-eno123:52:362
265019976,1cyclictest61650irq/122-eno123:45:292
265019976,1cyclictest61650irq/122-eno123:10:022
265019976,1cyclictest61650irq/122-eno122:18:132
265019976,1cyclictest61650irq/122-eno122:10:202
265019976,1cyclictest61650irq/122-eno121:35:192
265019976,1cyclictest61650irq/122-eno121:30:142
265019976,0cyclictest61650irq/122-eno123:40:102
265019976,0cyclictest61650irq/122-eno123:35:112
265019976,0cyclictest61650irq/122-eno123:35:112
265019976,0cyclictest61650irq/122-eno123:20:132
265019976,0cyclictest61650irq/122-eno121:50:122
265019976,0cyclictest61650irq/122-eno121:20:132
265019975,1cyclictest11301-21snmpd19:29:302
265019975,1cyclictest11301-21snmpd00:26:352
265019974,2cyclictest583-21in:imuxsock21:00:002
265019973,3cyclictest9078-21cpuspeed_turbos21:40:122
265019972,2cyclictest26475-21cyclictest00:08:372
265019971,4cyclictest0-21swapper/223:05:202
265019970,6cyclictest25735-21latency_hist20:15:002
265019970,6cyclictest19138-21diskmemload23:15:162
265019970,4cyclictest0-21swapper/222:28:402
264899972,3cyclictest0-21swapper/123:40:111
264899970,1cyclictest0-21swapper/122:04:161
264899970,1cyclictest0-21swapper/120:04:581
264849976,1cyclictest4150-21ssh22:19:130
264849976,1cyclictest3625-1kworker/u9:222:26:320
264849976,1cyclictest19381-21ntpq23:25:180
264849976,1cyclictest11301-21snmpd22:54:330
264849976,1cyclictest11301-21snmpd00:39:400
264849975,1cyclictest7346-21latency_hist23:09:590
264849975,1cyclictest4320-21diskstats23:50:150
264849975,1cyclictest11301-21snmpd23:33:010
264849975,1cyclictest11301-21snmpd20:33:110
264849975,1cyclictest11301-21snmpd19:38:540
264849975,1cyclictest11301-21snmpd19:26:480
264849975,1cyclictest11301-21snmpd00:23:350
264849972,2cyclictest9713-21munin-run20:50:000
264849972,1cyclictest25238-21/usr/sbin/munin23:35:160
264849972,1cyclictest25238-21/usr/sbin/munin23:35:160
264849971,5cyclictest13513-21ssh21:45:190
264849971,2cyclictest0-21swapper/022:20:100
264849970,6cyclictest7838-21diskstats23:55:130
264849970,6cyclictest3563-21ssh21:30:400
264849970,6cyclictest32661-21perl00:30:150
264849970,6cyclictest24071-21ssh00:18:200
264849970,6cyclictest19499-21ssh00:10:200
264849970,6cyclictest14507-21ssh22:33:340
264849970,6cyclictest0-21swapper/022:35:110
264849970,6cyclictest0-21swapper/021:50:060
264849970,6cyclictest0-21swapper/019:51:120
264849970,6cyclictest0-21swapper/019:15:200
264849970,2cyclictest0-21swapper/020:10:110
264849970,2cyclictest0-21swapper/019:10:120
264849970,1cyclictest18614-21latency_hist20:00:000
264849970,1cyclictest14333-21ssh00:05:070
264849970,1cyclictest13551-21ssh23:17:190
264849970,1cyclictest1287-21ssh23:45:190
264849970,1cyclictest10793-21ssh00:00:020
264849970,1cyclictest10186-21ssh23:12:500
264849970,1cyclictest0-21swapper/023:03:530
264849970,1cyclictest0-21swapper/022:10:010
264849970,1cyclictest0-21swapper/021:35:190
264849970,1cyclictest0-21swapper/020:55:160
264849970,1cyclictest0-21swapper/020:50:210
264849970,1cyclictest0-21swapper/019:20:110
24330270,0sleep10-21swapper/122:45:371
3575260,1sleep10-21swapper/121:30:431
265129965,1cyclictest21121-21ssh21:55:283
265129965,1cyclictest18639-21ssh21:53:493
265129965,1cyclictest17550-21ssh22:37:073
265129965,1cyclictest1624-21ntpq20:30:193
265129965,1cyclictest11301-21snmpd23:35:403
265129965,1cyclictest11301-21snmpd23:35:403
265129965,0cyclictest19138-21diskmemload22:10:423
265129965,0cyclictest0-21swapper/323:00:073
265129964,1cyclictest35-21ksoftirqd/321:01:543
265129964,1cyclictest27662-21cat21:20:163
265129964,1cyclictest11301-21snmpd22:26:023
265129964,1cyclictest11301-21snmpd20:43:563
265129964,1cyclictest11301-21snmpd19:41:363
265129964,1cyclictest11096-21ntpq20:50:183
265129963,1cyclictest7318-21apt-get23:55:113
265129963,1cyclictest240-21systemd-journal20:25:003
265129962,3cyclictest26693-21apt-get19:10:123
265129962,0cyclictest19138-21diskmemload21:40:403
265129961,4cyclictest0-21swapper/322:50:103
265129961,2cyclictest9705-21perf20:50:003
265129961,2cyclictest0-21swapper/322:58:183
265129961,0cyclictest19138-21diskmemload00:27:263
265129960,4cyclictest0-21swapper/320:26:583
265129960,2cyclictest16003-21ps23:20:193
265129960,2cyclictest0-21swapper/323:13:583
265129960,2cyclictest0-21swapper/322:06:463
265129960,2cyclictest0-21swapper/321:45:213
265129960,2cyclictest0-21swapper/319:25:143
265129960,1cyclictest0-21swapper/323:40:143
265129960,1cyclictest0-21swapper/321:35:163
265019966,0cyclictest61650irq/122-eno123:31:312
265019966,0cyclictest61650irq/122-eno123:26:382
265019966,0cyclictest61650irq/122-eno122:55:142
265019966,0cyclictest61650irq/122-eno122:20:222
265019966,0cyclictest61650irq/122-eno120:25:132
265019966,0cyclictest61650irq/122-eno120:15:172
265019966,0cyclictest61650irq/122-eno119:54:462
265019966,0cyclictest61650irq/122-eno119:45:142
265019966,0cyclictest61650irq/122-eno119:16:152
265019966,0cyclictest61650irq/122-eno119:12:522
265019965,1cyclictest61650irq/122-eno121:25:232
265019965,1cyclictest61650irq/122-eno120:05:152
265019965,1cyclictest19657-21ssh00:10:242
265019964,1cyclictest61650irq/122-eno122:40:132
265019964,1cyclictest61650irq/122-eno121:15:112
265019964,1cyclictest61650irq/122-eno120:50:212
265019964,1cyclictest61650irq/122-eno100:20:122
265019964,1cyclictest1747-21ntpd21:05:582
265019964,1cyclictest11301-21snmpd20:43:112
265019964,1cyclictest11301-21snmpd19:31:382
265019962,2cyclictest19138-21diskmemload21:55:162
265019961,1cyclictest0-21swapper/219:55:132
265019960,6cyclictest0-21swapper/219:20:392
265019960,4cyclictest28824-21fschecks_time20:20:132
265019960,4cyclictest0-21swapper/221:00:122
265019960,1cyclictest0-21swapper/219:40:242
264899961,2cyclictest0-21swapper/120:25:171
264899960,6cyclictest0-21swapper/123:52:281
264899960,6cyclictest0-21swapper/123:32:551
264899960,6cyclictest0-21swapper/123:26:261
264899960,6cyclictest0-21swapper/123:07:181
264899960,6cyclictest0-21swapper/122:26:161
264899960,6cyclictest0-21swapper/121:47:141
264899960,6cyclictest0-21swapper/120:05:201
264899960,6cyclictest0-21swapper/119:44:061
264899960,6cyclictest0-21swapper/119:30:151
264899960,6cyclictest0-21swapper/100:24:231
264899960,6cyclictest0-21swapper/100:12:451
264899960,5cyclictest0-21swapper/122:34:081
264899960,5cyclictest0-21swapper/121:10:161
264899960,5cyclictest0-21swapper/121:00:031
264899960,5cyclictest0-21swapper/120:43:041
264899960,5cyclictest0-21swapper/119:25:331
264899960,4cyclictest0-21swapper/122:20:581
264899960,4cyclictest0-21swapper/121:43:521
264899960,4cyclictest0-21swapper/121:37:401
264899960,4cyclictest0-21swapper/100:27:171
264899960,3cyclictest0-21swapper/123:16:591
264899960,3cyclictest0-21swapper/119:15:011
264899960,3cyclictest0-21swapper/100:05:201
264899960,2cyclictest0-21swapper/121:22:001
264899960,1cyclictest0-21swapper/123:01:061
264899960,1cyclictest0-21swapper/122:05:401
264899960,1cyclictest0-21swapper/119:46:151
264849964,1cyclictest32687-21dump-pmu-power20:30:010
264849962,2cyclictest0-21swapper/022:00:180
264849960,6cyclictest0-21swapper/020:20:150
264849960,1cyclictest26726-21ssh21:20:050
264849960,1cyclictest0-21swapper/021:55:160
264849960,0cyclictest0-21swapper/022:06:300
264849960,0cyclictest0-21swapper/020:16:200
264849960,0cyclictest0-21swapper/019:45:460
264849960,0cyclictest0-21swapper/019:40:090
264849960,0cyclictest0-21swapper/000:25:120
265129955,0cyclictest0-21swapper/320:18:003
265129953,1cyclictest9099-21idleruntime-cro19:40:003
265129953,1cyclictest35-21ksoftirqd/319:30:303
265129952,1cyclictest548-21systemd-logind21:10:193
265129951,1cyclictest25606-21awk20:15:003
265129950,3cyclictest0-21swapper/320:35:213
265129950,2cyclictest240-21systemd-journal19:54:593
265129950,0cyclictest0-21swapper/319:15:013
265019955,0cyclictest61650irq/122-eno120:00:532
265019955,0cyclictest61650irq/122-eno119:35:072
264899955,0cyclictest0-21swapper/120:20:311
264899955,0cyclictest0-21swapper/119:52:251
264899954,1cyclictest0-21swapper/120:39:561
264899951,3cyclictest0-21swapper/123:35:111
264899951,3cyclictest0-21swapper/123:35:101
264899950,5cyclictest0-21swapper/121:51:371
264899950,5cyclictest0-21swapper/120:51:141
264899950,5cyclictest0-21swapper/120:48:291
264899950,5cyclictest0-21swapper/120:17:391
264899950,5cyclictest0-21swapper/119:55:151
264899950,5cyclictest0-21swapper/119:38:531
264899950,5cyclictest0-21swapper/119:21:421
264899950,4cyclictest0-21swapper/122:43:281
264899950,3cyclictest0-21swapper/123:47:311
264899950,3cyclictest0-21swapper/123:10:131
264899950,3cyclictest0-21swapper/122:59:431
264899950,3cyclictest0-21swapper/122:37:051
264899950,3cyclictest0-21swapper/122:15:111
264899950,3cyclictest0-21swapper/121:57:321
264899950,2cyclictest0-21swapper/123:21:481
264899950,2cyclictest0-21swapper/100:30:211
264899950,0cyclictest0-21swapper/100:15:231
264849950,5cyclictest0-21swapper/020:05:000
264849950,0cyclictest0-21swapper/019:30:140
265129941,2cyclictest16395-21apt-get19:55:133
264899944,0cyclictest0-21swapper/121:16:031
264899942,1cyclictest0-21swapper/120:55:121
264899942,1cyclictest0-21swapper/119:10:121
264899941,2cyclictest0-21swapper/120:10:111
264899940,4cyclictest0-21swapper/122:50:201
264899940,2cyclictest0-21swapper/121:25:281
264899940,1cyclictest0-21swapper/122:10:161
264899940,0cyclictest0-21swapper/123:55:191
264899940,0cyclictest0-21swapper/121:05:201
264899940,0cyclictest0-21swapper/120:32:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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