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2026-06-20 - 12:22
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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 rack1slot1.osadl.org (updated Sat Jun 20, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288632233159,26sleep30-21swapper/319:05:593
289942208175,21sleep00-21swapper/019:07:410
290262201163,24sleep20-21swapper/219:08:072
289952199158,27sleep10-21swapper/119:07:421
236462590,0sleep00-21swapper/022:38:110
32112180,0sleep30-21swapper/322:55:003
86032140,0sleep00-21swapper/020:40:120
29268991414,0cyclictest0-21swapper/322:51:283
147442130,0sleep00-21swapper/023:10:110
29268991211,1cyclictest35-21ksoftirqd/322:30:013
2925299120,6cyclictest0-21swapper/123:31:471
2925099119,1cyclictest9-21ksoftirqd/000:15:000
2926199108,1cyclictest28-21ksoftirqd/223:28:302
29261991010,0cyclictest0-21swapper/222:57:412
2925299100,5cyclictest0-21swapper/122:10:111
2925299100,5cyclictest0-21swapper/122:10:111
2925099109,1cyclictest9-21ksoftirqd/022:55:000
2925099102,4cyclictest4315-21perf00:25:000
2925099100,5cyclictest5587-21grep22:15:000
2925099100,5cyclictest5587-21grep22:15:000
2925099100,4cyclictest0-21swapper/019:10:100
292689998,1cyclictest35-21ksoftirqd/321:15:003
292689990,7cyclictest22307-21diskmemload22:21:043
292619997,1cyclictest16714-21cron22:34:552
292619993,4cyclictest0-21swapper/221:35:182
292619990,8cyclictest0-21swapper/219:45:152
292619990,6cyclictest0-21swapper/222:00:112
292619990,1cyclictest0-21swapper/220:25:112
292509992,6cyclictest30593-21chrt22:47:040
292509991,5cyclictest0-21swapper/020:15:150
292509990,6cyclictest0-21swapper/022:42:440
292509990,4cyclictest20003-21latency_hist21:05:000
292689988,0cyclictest35-21ksoftirqd/322:30:113
292689987,1cyclictest1029-21snmpd22:04:283
292689986,1cyclictest1029-21snmpd20:23:173
292689986,1cyclictest1029-21snmpd19:28:183
292689981,4cyclictest22307-21diskmemload23:31:313
292619986,1cyclictest61650irq/122-eno123:40:002
292619986,1cyclictest61650irq/122-eno123:30:112
292619985,1cyclictest240-21systemd-journal19:20:002
292619981,6cyclictest1029-21snmpd21:33:362
292509986,1cyclictest31117-21ssh21:20:160
292509986,1cyclictest13127-21grep19:40:180
292509986,1cyclictest1029-21snmpd23:47:130
292509986,1cyclictest1029-21snmpd22:59:450
292509986,1cyclictest1029-21snmpd19:59:310
292509986,1cyclictest1029-21snmpd19:28:000
292509986,1cyclictest1029-21snmpd19:17:060
292509984,2cyclictest548-21systemd-logind00:25:190
292509983,1cyclictest0-21swapper/020:50:150
292509982,4cyclictest22307-21diskmemload23:05:280
292509982,2cyclictest22307-21diskmemload23:41:240
292509982,0cyclictest22307-21diskmemload23:31:470
292509981,1cyclictest14713-21ssh00:38:320
292509980,7cyclictest7970-21ssh22:15:480
292509980,7cyclictest3585-21ssh23:39:400
292509980,7cyclictest22945-21ssh21:53:470
292509980,3cyclictest0-21swapper/020:55:120
292509980,1cyclictest0-21swapper/000:08:280
28475280,1sleep10-21swapper/100:12:291
292689977,0cyclictest35-21ksoftirqd/300:03:513
292689976,1cyclictest6936-21cat22:15:143
292689976,1cyclictest35-21ksoftirqd/319:40:013
292689976,1cyclictest15902-21cat23:55:163
292689976,1cyclictest1029-21snmpd23:46:313
292689976,1cyclictest1029-21snmpd22:39:353
292689976,1cyclictest1029-21snmpd20:44:393
292689976,1cyclictest1029-21snmpd00:13:203
292689975,1cyclictest1029-21snmpd20:03:503
292689975,1cyclictest1029-21snmpd19:24:543
292689974,2cyclictest1-21systemd23:04:083
292689973,1cyclictest22307-21diskmemload23:39:193
292689972,2cyclictest21195-21ntp_states21:50:183
292689970,5cyclictest0-21swapper/323:41:283
292689970,5cyclictest0-21swapper/300:39:193
292689970,3cyclictest17630-21dump-pmu-power23:15:003
292689970,3cyclictest0-21swapper/321:28:023
292689970,2cyclictest0-21swapper/322:10:113
292689970,2cyclictest0-21swapper/322:10:113
292689970,1cyclictest240-21systemd-journal20:09:553
292689970,1cyclictest0-21swapper/323:20:113
292689970,1cyclictest0-21swapper/321:30:103
292619976,1cyclictest61650irq/122-eno123:10:522
292619976,1cyclictest61650irq/122-eno122:16:042
292619976,1cyclictest61650irq/122-eno119:50:112
292619976,1cyclictest61650irq/122-eno100:10:562
292619976,1cyclictest61650irq/122-eno100:05:122
292619976,1cyclictest1029-21snmpd23:46:072
292619976,0cyclictest61650irq/122-eno122:45:202
292619971,4cyclictest23784-21runrttasks22:38:362
292619971,1cyclictest22307-21diskmemload21:20:122
292619970,6cyclictest0-21swapper/223:43:372
292619970,6cyclictest0-21swapper/223:15:482
292619970,4cyclictest337-21awk20:20:202
292619970,1cyclictest0-21swapper/222:50:152
292619970,1cyclictest0-21swapper/222:44:362
292529971,3cyclictest0-21swapper/119:15:171
292529970,7cyclictest0-21swapper/122:04:281
292529970,7cyclictest0-21swapper/100:03:511
292529970,6cyclictest0-21swapper/123:55:161
292529970,5cyclictest0-21swapper/121:55:571
292529970,5cyclictest0-21swapper/121:39:351
292529970,4cyclictest0-21swapper/121:20:031
292529970,4cyclictest0-21swapper/120:20:121
292529970,3cyclictest0-21swapper/121:41:511
292529970,2cyclictest0-21swapper/123:10:091
292529970,1cyclictest0-21swapper/123:25:151
292509975,1cyclictest4926-21ssh21:29:520
292509975,1cyclictest16338-21/usr/sbin/munin21:45:120
292509975,1cyclictest1029-21snmpd19:20:120
292509971,5cyclictest5247-21/usr/sbin/munin21:30:140
292509971,4cyclictest0-21swapper/023:50:120
292509970,6cyclictest693-21runrttasks21:39:520
292509970,6cyclictest30340-21perl00:15:140
292509970,6cyclictest29246-21ssh22:00:450
292509970,6cyclictest24600-21ssh21:11:330
292509970,6cyclictest22727-21/usr/sbin/munin20:00:180
292509970,6cyclictest16766-21users23:55:220
292509970,6cyclictest13884-21ntp_states21:40:170
292509970,6cyclictest0-21swapper/023:20:120
292509970,6cyclictest0-21swapper/023:00:120
292509970,2cyclictest0-21swapper/000:30:190
292509970,1cyclictest28353-21ssh23:28:430
292509970,1cyclictest27926-21ssh21:15:280
292509970,1cyclictest240-21systemd-journal23:20:000
292509970,1cyclictest22307-21diskmemload00:00:350
292509970,1cyclictest15390-21ssh22:26:040
292509970,1cyclictest1108-21ssh22:07:400
292509970,1cyclictest0-21swapper/019:45:120
292689965,1cyclictest30542-21cat00:15:163
292689965,1cyclictest2732-21ssh00:20:293
292689965,1cyclictest26342-21cat23:25:173
292689965,1cyclictest24515-21ssh22:40:023
292689965,1cyclictest10885-21ssh21:35:343
292689965,1cyclictest1029-21snmpd20:59:273
292689965,1cyclictest1029-21snmpd19:34:223
292689965,1cyclictest1029-21snmpd19:34:223
292689965,1cyclictest1029-21snmpd00:25:033
292689964,1cyclictest1029-21snmpd19:54:403
292689963,1cyclictest13650irq/124-ahci[0020:50:003
292689963,0cyclictest22307-21diskmemload21:20:453
292689962,2cyclictest22307-21diskmemload23:08:253
292689961,3cyclictest22307-21diskmemload22:05:033
292689961,3cyclictest0-21swapper/319:45:183
292689961,2cyclictest240-21systemd-journal20:19:483
292689961,0cyclictest22307-21diskmemload21:45:443
292689960,4cyclictest29977-21kworker/u8:121:42:593
292689960,3cyclictest0-21swapper/300:30:193
292689960,2cyclictest0-21swapper/322:45:113
292689960,1cyclictest0-21swapper/321:55:183
292689960,0cyclictest22307-21diskmemload23:16:323
292689960,0cyclictest22307-21diskmemload21:15:193
292689960,0cyclictest0-21swapper/300:06:093
292619966,0cyclictest61650irq/122-eno123:50:172
292619966,0cyclictest61650irq/122-eno123:20:172
292619966,0cyclictest61650irq/122-eno123:05:362
292619966,0cyclictest61650irq/122-eno123:00:132
292619966,0cyclictest61650irq/122-eno122:25:462
292619966,0cyclictest61650irq/122-eno122:21:572
292619966,0cyclictest61650irq/122-eno122:11:262
292619966,0cyclictest61650irq/122-eno122:11:262
292619966,0cyclictest61650irq/122-eno122:05:182
292619966,0cyclictest61650irq/122-eno121:55:122
292619966,0cyclictest61650irq/122-eno121:50:092
292619966,0cyclictest61650irq/122-eno121:40:172
292619966,0cyclictest61650irq/122-eno121:25:132
292619966,0cyclictest61650irq/122-eno120:47:012
292619966,0cyclictest61650irq/122-eno120:40:032
292619966,0cyclictest61650irq/122-eno120:33:362
292619966,0cyclictest61650irq/122-eno120:15:182
292619966,0cyclictest61650irq/122-eno120:08:072
292619966,0cyclictest61650irq/122-eno119:40:412
292619966,0cyclictest61650irq/122-eno119:35:092
292619966,0cyclictest61650irq/122-eno119:30:112
292619966,0cyclictest61650irq/122-eno119:30:112
292619966,0cyclictest61650irq/122-eno119:26:112
292619966,0cyclictest61650irq/122-eno119:20:152
292619966,0cyclictest61650irq/122-eno100:35:092
292619966,0cyclictest61650irq/122-eno100:30:202
292619966,0cyclictest61650irq/122-eno100:26:512
292619966,0cyclictest61650irq/122-eno100:21:042
292619966,0cyclictest61650irq/122-eno100:16:192
292619965,1cyclictest61650irq/122-eno123:55:182
292619965,1cyclictest1029-21snmpd19:10:032
292619964,1cyclictest1029-21snmpd21:10:212
292619963,2cyclictest17594-21munin-run21:00:002
292619963,2cyclictest1029-21snmpd21:00:002
292619960,6cyclictest0-21swapper/221:45:342
292619960,5cyclictest21022-21taskset19:59:312
292619960,5cyclictest0-21swapper/220:11:532
292619960,4cyclictest0-21swapper/200:00:192
292619960,3cyclictest0-21swapper/221:15:182
292619960,1cyclictest0-21swapper/220:50:142
292529961,3cyclictest0-21swapper/122:38:151
292529961,2cyclictest0-21swapper/122:30:151
292529961,2cyclictest0-21swapper/121:05:191
292529961,2cyclictest0-21swapper/119:55:141
292529960,6cyclictest0-21swapper/123:46:321
292529960,6cyclictest0-21swapper/122:59:511
292529960,6cyclictest0-21swapper/121:50:111
292529960,6cyclictest0-21swapper/120:44:391
292529960,6cyclictest0-21swapper/119:28:181
292529960,5cyclictest0-21swapper/122:15:141
292529960,5cyclictest0-21swapper/100:25:021
292529960,4cyclictest0-21swapper/122:54:331
292529960,4cyclictest0-21swapper/122:23:221
292529960,4cyclictest0-21swapper/122:06:531
292529960,4cyclictest0-21swapper/121:14:581
292529960,3cyclictest0-21swapper/100:35:111
292529960,1cyclictest0-21swapper/123:20:111
292529960,1cyclictest0-21swapper/100:24:091
292509964,1cyclictest9669-21ssh22:20:030
292509964,1cyclictest10751-21/usr/sbin/munin20:45:210
292509964,1cyclictest1029-21snmpd19:33:570
292509964,1cyclictest1029-21snmpd19:33:570
292509960,5cyclictest0-21swapper/020:35:110
292509960,3cyclictest0-21swapper/022:30:020
292509960,1cyclictest26208-21ssh21:57:390
292509960,1cyclictest2075-21gltestperf20:25:140
292509960,1cyclictest0-21swapper/021:05:220
292509960,1cyclictest0-21swapper/019:35:110
292509960,0cyclictest0-21swapper/020:33:070
292689955,0cyclictest35-21ksoftirqd/320:35:103
292689955,0cyclictest0-21swapper/321:02:113
292689954,1cyclictest1029-21snmpd21:06:063
292689954,1cyclictest1029-21snmpd20:31:263
292689952,1cyclictest548-21systemd-logind20:50:173
292689952,1cyclictest3048-21/usr/sbin/munin20:25:213
292689951,3cyclictest0-21swapper/320:10:153
292689950,3cyclictest0-21swapper/323:50:103
292689950,2cyclictest31603-21perf19:15:003
292689950,0cyclictest0-21swapper/319:44:133
292689950,0cyclictest0-21swapper/319:15:103
292619955,0cyclictest61650irq/122-eno120:35:122
292619955,0cyclictest61650irq/122-eno120:01:292
292619950,3cyclictest548-21systemd-logind21:05:212
292529955,0cyclictest0-21swapper/100:30:511
292529954,1cyclictest0-21swapper/120:05:111
292529951,4cyclictest0-21swapper/119:36:141
292529951,2cyclictest0-21swapper/122:25:121
292529951,2cyclictest0-21swapper/119:10:181
292529950,5cyclictest0-21swapper/120:59:271
292529950,5cyclictest0-21swapper/119:34:221
292529950,5cyclictest0-21swapper/119:34:221
292529950,5cyclictest0-21swapper/119:24:541
292529950,5cyclictest0-21swapper/100:15:161
292529950,4cyclictest0-21swapper/123:40:041
292529950,4cyclictest0-21swapper/123:15:141
292529950,4cyclictest0-21swapper/123:06:311
292529950,3cyclictest0-21swapper/123:03:081
292529950,3cyclictest0-21swapper/121:30:361
292529950,3cyclictest0-21swapper/121:25:411
292529950,2cyclictest0-21swapper/123:50:461
292529950,2cyclictest0-21swapper/123:35:111
292529950,2cyclictest0-21swapper/121:15:181
292529950,2cyclictest0-21swapper/120:00:181
292529950,2cyclictest0-21swapper/119:50:001
292529950,1cyclictest0-21swapper/122:48:221
292529950,1cyclictest0-21swapper/122:40:531
292529950,1cyclictest0-21swapper/100:08:021
292509953,1cyclictest24085-21/usr/sbin/munin20:05:170
292509950,4cyclictest31381-21/usr/sbin/munin20:20:120
292509950,4cyclictest26640-21/usr/sbin/munin20:10:120
292509950,4cyclictest16599-21/usr/sbin/munin19:50:120
292689943,1cyclictest19502-21cut19:55:143
292529942,1cyclictest0-21swapper/120:50:121
292529941,1cyclictest7831-21taskset20:36:091
292529941,1cyclictest0-21swapper/121:05:001
292529941,1cyclictest0-21swapper/120:30:111
292529941,1cyclictest0-21swapper/119:50:111
292529940,2cyclictest0-21swapper/121:45:001
292529940,2cyclictest0-21swapper/120:45:161
292529940,1cyclictest0-21swapper/120:10:121
292529940,0cyclictest0-21swapper/120:19:071
292529930,1cyclictest0-21swapper/120:25:011
292529930,0cyclictest0-21swapper/119:40:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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