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2026-09-19 - 08:12
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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 Sat Sep 19, 2026 00:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
196512216152,21sleep20-21swapper/219:06:172
198732212157,24sleep30-21swapper/319:09:123
197022200161,25sleep10-21swapper/119:06:571
196492198159,26sleep00-21swapper/019:06:150
97272710,0sleep10-21swapper/119:55:111
97272710,0sleep10-21swapper/119:55:111
20034991414,0cyclictest35-21ksoftirqd/322:09:553
303102120,0sleep10-21swapper/119:30:001
20034991211,1cyclictest35-21ksoftirqd/322:15:123
2002799120,11cyclictest0-21swapper/223:53:472
2001599120,12cyclictest0-21swapper/020:45:120
2003499119,1cyclictest35-21ksoftirqd/323:40:163
20034991111,0cyclictest35-21ksoftirqd/322:30:183
20034991110,0cyclictest35-21ksoftirqd/323:29:593
20027991110,1cyclictest0-21swapper/223:35:162
2002799110,5cyclictest61650irq/122-eno100:01:002
256922100,0sleep30-21swapper/322:12:193
2003499109,1cyclictest35-21ksoftirqd/323:37:303
2003499109,1cyclictest35-21ksoftirqd/323:00:183
2003499109,1cyclictest35-21ksoftirqd/321:30:173
2003499109,1cyclictest35-21ksoftirqd/320:15:003
2003499109,1cyclictest35-21ksoftirqd/300:20:113
2003499109,1cyclictest35-21ksoftirqd/300:00:203
2003499109,0cyclictest35-21ksoftirqd/323:45:203
20034991010,0cyclictest35-21ksoftirqd/323:24:483
20034991010,0cyclictest35-21ksoftirqd/322:25:133
2002799100,4cyclictest0-21swapper/220:15:112
200349999,0cyclictest35-21ksoftirqd/323:55:213
200349999,0cyclictest35-21ksoftirqd/323:33:453
200349999,0cyclictest35-21ksoftirqd/323:10:143
200349999,0cyclictest35-21ksoftirqd/322:58:483
200349999,0cyclictest35-21ksoftirqd/322:20:103
200349998,1cyclictest35-21ksoftirqd/300:35:133
200349998,1cyclictest35-21ksoftirqd/300:05:153
200349990,6cyclictest16385-21/usr/sbin/munin22:00:163
200279990,6cyclictest31883-21irqstats20:40:152
200279990,5cyclictest11301-21snmpd21:28:272
200279990,0cyclictest0-21swapper/220:52:462
200159992,6cyclictest2277-21perf21:40:000
200159990,8cyclictest23961-21apt-get21:25:090
200159990,6cyclictest13439-21ssh21:10:140
32449280,0sleep20-21swapper/222:21:352
200349988,0cyclictest35-21ksoftirqd/323:08:133
200349988,0cyclictest35-21ksoftirqd/300:12:383
200349987,1cyclictest35-21ksoftirqd/323:50:133
200349987,1cyclictest35-21ksoftirqd/322:50:103
200349986,2cyclictest3814-21ntp_offset19:40:163
200349986,1cyclictest35-21ksoftirqd/322:40:183
200349986,1cyclictest11301-21snmpd21:48:013
200349986,1cyclictest11301-21snmpd20:49:323
200349986,1cyclictest11301-21snmpd20:01:293
200349984,1cyclictest240-21systemd-journal22:46:583
200349982,5cyclictest26247-21/usr/sbin/munin20:30:163
200279986,1cyclictest61650irq/122-eno123:40:142
200279986,1cyclictest61650irq/122-eno122:10:182
200279986,1cyclictest310-21cat23:55:172
200279980,7cyclictest7365-21apt-get19:50:102
200279980,7cyclictest0-21swapper/200:15:132
200239981,3cyclictest0-21swapper/123:10:121
200239980,5cyclictest0-21swapper/123:16:241
200239980,5cyclictest0-21swapper/100:05:191
200239980,4cyclictest0-21swapper/100:00:111
200159986,1cyclictest11301-21snmpd21:42:240
200159985,1cyclictest9-21ksoftirqd/021:05:000
200159984,2cyclictest240-21systemd-journal20:20:000
200159984,2cyclictest240-21systemd-journal00:10:000
200159983,2cyclictest240-21systemd-journal22:20:000
200159980,7cyclictest15005-21ssh21:56:250
200159980,5cyclictest14111-21apt-get23:30:110
200159980,4cyclictest22177-21ssh22:55:100
200159980,1cyclictest9960-21sort19:55:120
200159980,1cyclictest9960-21sort19:55:120
9140270,0sleep00-21swapper/021:50:020
200349977,0cyclictest35-21ksoftirqd/322:35:343
200349976,1cyclictest35-21ksoftirqd/320:55:133
200349976,1cyclictest35-21ksoftirqd/300:15:143
200349975,1cyclictest22563-21ssh21:21:433
200349975,1cyclictest1668-21ssh21:38:153
200349975,1cyclictest11301-21snmpd21:11:153
200349975,1cyclictest11301-21snmpd19:37:063
200349975,1cyclictest11301-21snmpd19:25:083
200349972,4cyclictest12682-21diskmemload21:55:103
200349972,2cyclictest240-21systemd-journal00:25:583
200349970,4cyclictest5161-21runrttasks21:43:153
200349970,4cyclictest0-21swapper/321:52:033
200279976,1cyclictest61650irq/122-eno123:10:022
200279976,1cyclictest61650irq/122-eno123:09:122
200279976,1cyclictest61650irq/122-eno122:19:382
200279976,1cyclictest61650irq/122-eno122:05:182
200279976,1cyclictest61650irq/122-eno121:42:052
200279976,1cyclictest61650irq/122-eno121:20:102
200279976,1cyclictest61650irq/122-eno100:20:112
200279976,0cyclictest61650irq/122-eno100:35:152
200279976,0cyclictest61650irq/122-eno100:05:142
200279975,2cyclictest28-21ksoftirqd/221:36:402
200279975,1cyclictest61650irq/122-eno123:00:112
200279975,1cyclictest61650irq/122-eno121:30:122
200279975,1cyclictest61650irq/122-eno121:05:132
200279975,1cyclictest28-21ksoftirqd/221:05:002
200279975,1cyclictest28-21ksoftirqd/219:20:102
200279975,1cyclictest11301-21snmpd21:48:372
200279975,1cyclictest11301-21snmpd19:31:182
200279973,3cyclictest61650irq/122-eno122:40:252
200279973,2cyclictest240-21systemd-journal19:40:002
200279972,4cyclictest2879-21munin-node19:12:142
200279971,6cyclictest0-21swapper/223:26:242
200279971,4cyclictest22574-21munin-node20:39:322
200279970,3cyclictest0-21swapper/223:22:042
200279970,1cyclictest0-21swapper/200:25:122
200239971,6cyclictest0-21swapper/122:11:101
200239970,6cyclictest0-21swapper/122:35:111
200239970,4cyclictest0-21swapper/121:20:141
200159976,1cyclictest9-21ksoftirqd/019:10:100
200159976,1cyclictest23066-1kworker/u9:123:49:290
200159976,1cyclictest17292-21cat22:00:150
200159976,1cyclictest14051-1kworker/u9:023:37:430
200159975,1cyclictest9-21ksoftirqd/020:50:130
200159975,1cyclictest11301-21snmpd21:49:340
200159975,1cyclictest11301-21snmpd21:06:080
200159975,1cyclictest11301-21snmpd20:26:260
200159974,3cyclictest609-21ntp_kernel_pll_23:55:180
200159973,1cyclictest240-21systemd-journal20:05:000
200159972,3cyclictest12682-21diskmemload22:13:030
200159972,2cyclictest16637-21apt-get21:15:100
200159971,1cyclictest0-21swapper/022:22:520
200159971,0cyclictest12682-21diskmemload00:37:520
200159970,6cyclictest5509-21ssh23:15:310
200159970,6cyclictest25838-21ssh23:00:120
200159970,6cyclictest23024-21grep23:40:210
200159970,6cyclictest22630-21ssh21:21:550
200159970,6cyclictest17594-21ssh00:20:130
200159970,6cyclictest12682-21diskmemload23:05:510
200159970,6cyclictest12682-21diskmemload22:47:080
200159970,6cyclictest0-21swapper/022:30:110
200159970,6cyclictest0-21swapper/022:25:140
200159970,6cyclictest0-21swapper/019:30:110
200159970,6cyclictest0-21swapper/000:10:160
200159970,1cyclictest30456-21ssh23:51:150
200159970,1cyclictest25807-21ssh00:30:230
200159970,1cyclictest22063-21ssh22:06:460
200159970,1cyclictest2112-21ssh23:10:460
200159970,1cyclictest12789-21ssh23:26:330
200159970,1cyclictest12682-21diskmemload22:41:260
200159970,1cyclictest0-21swapper/022:51:510
200159970,1cyclictest0-21swapper/019:20:180
200159970,1cyclictest0-21swapper/000:00:170
10057270,0sleep012682-21diskmemload22:35:230
200349966,0cyclictest35-21ksoftirqd/323:15:173
200349966,0cyclictest35-21ksoftirqd/319:30:123
200349965,1cyclictest35-21ksoftirqd/321:15:113
200349965,1cyclictest35-21ksoftirqd/320:15:133
200349965,1cyclictest35-21ksoftirqd/319:20:183
200349965,1cyclictest35-21ksoftirqd/319:15:013
200349965,1cyclictest29765-21ntpq20:35:183
200349965,1cyclictest26249-21ssh21:26:503
200349965,1cyclictest25852-21ssh00:30:323
200349965,1cyclictest11301-21snmpd20:23:433
200349965,0cyclictest35-21ksoftirqd/321:00:123
200349964,1cyclictest35-21ksoftirqd/319:50:123
200349964,1cyclictest35-21ksoftirqd/319:15:003
200349964,1cyclictest11301-21snmpd20:42:113
200279966,0cyclictest61650irq/122-eno123:45:402
200279966,0cyclictest61650irq/122-eno123:18:322
200279966,0cyclictest61650irq/122-eno122:56:202
200279966,0cyclictest61650irq/122-eno122:45:242
200279966,0cyclictest61650irq/122-eno122:30:502
200279966,0cyclictest61650irq/122-eno122:25:332
200279966,0cyclictest61650irq/122-eno121:55:042
200279966,0cyclictest61650irq/122-eno121:50:012
200279966,0cyclictest61650irq/122-eno121:10:162
200279966,0cyclictest61650irq/122-eno120:55:182
200279966,0cyclictest61650irq/122-eno120:20:552
200279966,0cyclictest61650irq/122-eno120:10:142
200279966,0cyclictest61650irq/122-eno119:59:352
200279966,0cyclictest61650irq/122-eno119:59:352
200279966,0cyclictest61650irq/122-eno119:40:122
200279966,0cyclictest61650irq/122-eno100:10:072
200279965,1cyclictest61650irq/122-eno123:30:112
200279965,1cyclictest61650irq/122-eno121:15:102
200279965,1cyclictest61650irq/122-eno119:45:572
200279965,1cyclictest12984-21cat20:00:152
200279965,1cyclictest11301-21snmpd20:30:042
200279965,1cyclictest11301-21snmpd20:26:402
200279965,0cyclictest61650irq/122-eno122:50:002
200279962,3cyclictest16905-21diskstats22:00:132
200279961,3cyclictest8270-21apt-get22:35:112
200279960,6cyclictest0-21swapper/219:25:232
200279960,0cyclictest0-21swapper/200:30:052
200239964,1cyclictest0-21swapper/119:40:101
200239963,0cyclictest313262sleep123:06:391
200239962,4cyclictest0-21swapper/121:40:201
200239962,2cyclictest0-21swapper/121:31:211
200239961,3cyclictest0-21swapper/122:20:101
200239961,3cyclictest0-21swapper/120:10:121
200239960,6cyclictest0-21swapper/123:33:161
200239960,6cyclictest0-21swapper/123:26:111
200239960,6cyclictest0-21swapper/123:02:061
200239960,6cyclictest0-21swapper/122:48:031
200239960,6cyclictest0-21swapper/121:45:011
200239960,6cyclictest0-21swapper/121:05:191
200239960,6cyclictest0-21swapper/120:19:551
200239960,6cyclictest0-21swapper/119:52:061
200239960,6cyclictest0-21swapper/119:35:541
200239960,6cyclictest0-21swapper/100:30:381
200239960,5cyclictest0-21swapper/122:25:011
200239960,5cyclictest0-21swapper/100:12:381
200239960,4cyclictest152402sleep100:15:411
200239960,4cyclictest0-21swapper/123:52:521
200239960,4cyclictest0-21swapper/122:56:541
200239960,4cyclictest0-21swapper/100:20:441
200239960,2cyclictest0-21swapper/123:55:411
200239960,1cyclictest0-21swapper/123:43:461
200239960,1cyclictest0-21swapper/120:32:011
200159965,1cyclictest9-21ksoftirqd/020:20:090
200159965,1cyclictest5138-21telnet19:45:120
200159965,1cyclictest16864-21aten2.4-expect20:10:130
200159964,1cyclictest31946-21wc20:40:150
200159960,6cyclictest0-21swapper/020:35:150
200159960,6cyclictest0-21swapper/019:54:300
200159960,6cyclictest0-21swapper/019:35:580
200159960,6cyclictest0-21swapper/019:25:160
200159960,6cyclictest0-21swapper/019:15:150
200159960,5cyclictest12682-21diskmemload00:15:170
200159960,1cyclictest28325-21tune2fs21:30:130
200159960,1cyclictest12682-21diskmemload23:20:060
200159960,0cyclictest0-21swapper/020:58:260
200159960,0cyclictest0-21swapper/020:05:110
200159960,0cyclictest0-21swapper/000:25:020
200349955,0cyclictest35-21ksoftirqd/320:50:133
200349955,0cyclictest35-21ksoftirqd/320:05:133
200349954,1cyclictest35-21ksoftirqd/321:05:133
200349954,1cyclictest11301-21snmpd20:25:313
200349953,1cyclictest11592-21chrt19:56:573
200349953,1cyclictest11592-21chrt19:56:573
200349950,4cyclictest5562-21cut19:45:143
200279954,1cyclictest28-21ksoftirqd/220:45:002
200279952,2cyclictest15235-21head20:05:142
200239955,0cyclictest0-21swapper/122:44:501
200239955,0cyclictest0-21swapper/122:07:121
200239954,1cyclictest0-21swapper/100:35:201
200239950,5cyclictest0-21swapper/123:48:341
200239950,5cyclictest0-21swapper/122:16:041
200239950,5cyclictest0-21swapper/121:57:091
200239950,5cyclictest0-21swapper/121:25:151
200239950,5cyclictest0-21swapper/121:11:241
200239950,5cyclictest0-21swapper/120:57:441
200239950,5cyclictest0-21swapper/120:04:421
200239950,5cyclictest0-21swapper/119:19:541
200239950,4cyclictest0-21swapper/120:50:111
200239950,4cyclictest0-21swapper/119:30:181
200239950,3cyclictest0-21swapper/121:00:101
200239950,3cyclictest0-21swapper/100:25:031
200239950,2cyclictest0-21swapper/122:02:571
200239950,2cyclictest0-21swapper/121:54:051
200239950,2cyclictest0-21swapper/121:15:141
200159951,2cyclictest0-21swapper/019:40:100
200159950,5cyclictest0-21swapper/020:30:560
200279940,1cyclictest23025-21apt19:15:012
200239943,1cyclictest32755-21chrt20:40:441
200239941,2cyclictest0-21swapper/119:20:101
200239940,4cyclictest0-21swapper/121:36:391
200239940,4cyclictest0-21swapper/120:38:151
200239940,4cyclictest0-21swapper/120:25:181
200239940,3cyclictest0-21swapper/123:35:071
200239940,3cyclictest0-21swapper/122:52:041
200239940,3cyclictest0-21swapper/122:31:411
200239940,2cyclictest0-21swapper/120:45:211
200239940,1cyclictest0-21swapper/123:22:251
200239931,1cyclictest0-21swapper/120:20:111
200239931,1cyclictest0-21swapper/119:45:131
200239930,3cyclictest0-21swapper/120:05:191
200239930,0cyclictest0-21swapper/119:10:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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