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2026-08-23 - 01:24
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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 Sun Aug 23, 2026 00:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
280162210158,26sleep30-21swapper/319:09:083
279722210172,25sleep10-21swapper/119:08:341
278432201161,26sleep20-21swapper/219:06:532
277792198161,23sleep00-21swapper/019:06:040
83462630,0sleep10-21swapper/123:09:161
126322610,1sleep121-21ksoftirqd/121:40:431
24852580,0sleep20-21swapper/221:27:242
2817499190,15cyclictest0-21swapper/121:14:591
40872140,0sleep30-21swapper/319:25:133
28179991210,1cyclictest28-21ksoftirqd/219:30:002
2817499120,1cyclictest0-21swapper/122:30:191
2817999119,1cyclictest28-21ksoftirqd/220:39:592
2818399108,1cyclictest35-21ksoftirqd/320:14:593
2817999109,1cyclictest28-21ksoftirqd/222:20:142
2817999108,1cyclictest28-21ksoftirqd/220:10:002
2817999108,1cyclictest28-21ksoftirqd/219:20:002
2817999100,10cyclictest0-21swapper/200:20:462
2817999100,1cyclictest0-21swapper/223:50:102
2817999100,0cyclictest27507-21apt-get20:15:112
2817499100,2cyclictest0-21swapper/122:00:201
2816799101,4cyclictest11610-21/usr/sbin/munin00:00:000
281839997,1cyclictest35-21ksoftirqd/319:55:003
281839990,3cyclictest0-21swapper/322:20:113
281799999,0cyclictest28-21ksoftirqd/223:25:012
281799998,1cyclictest28-21ksoftirqd/222:05:002
281799998,1cyclictest28-21ksoftirqd/200:15:002
281799997,1cyclictest28-21ksoftirqd/223:05:142
281799997,1cyclictest28-21ksoftirqd/200:15:132
281799997,1cyclictest21239-21diskmemload00:30:142
281799990,6cyclictest0-21swapper/220:00:132
281749991,2cyclictest0-21swapper/119:15:181
281749990,6cyclictest0-21swapper/100:12:211
281749990,5cyclictest0-21swapper/123:55:251
281679992,6cyclictest1621-21wc22:59:590
281679992,3cyclictest3534-21latency_hist19:24:590
281679990,4cyclictest4145-21apt-get00:35:120
281679990,4cyclictest1171-21cat19:20:000
281839986,1cyclictest11301-21snmpd21:54:083
281839986,1cyclictest11301-21snmpd20:20:003
281839986,1cyclictest11301-21snmpd20:01:183
281839986,1cyclictest11301-21snmpd19:37:113
281839980,7cyclictest5171-21latency_hist23:05:003
281839980,2cyclictest0-21swapper/323:05:133
281799988,0cyclictest28-21ksoftirqd/221:15:192
281799987,1cyclictest28-21ksoftirqd/222:54:462
281799987,0cyclictest0-21swapper/223:34:572
281799986,1cyclictest28-21ksoftirqd/223:55:112
281799986,1cyclictest11301-21snmpd23:10:222
281799986,1cyclictest11301-21snmpd21:47:412
281799984,2cyclictest61650irq/122-eno123:01:482
281799983,3cyclictest20308-21apt-get22:40:142
281799980,6cyclictest2232-1kworker/2:2H23:15:162
281799980,6cyclictest2232-1kworker/2:2H23:15:162
281749980,2cyclictest0-21swapper/123:24:301
281679986,1cyclictest11301-21snmpd22:19:360
281679984,2cyclictest240-21systemd-journal22:55:000
281679982,2cyclictest7723-21expr21:35:140
281679981,1cyclictest0-21swapper/020:58:520
281679980,7cyclictest31511-21ntp_states23:40:180
281679980,7cyclictest31175-21ssh21:22:170
6118270,0sleep10-21swapper/100:36:001
281839977,0cyclictest35-21ksoftirqd/321:58:523
281839976,1cyclictest21239-21diskmemload00:19:313
281839975,1cyclictest28943-21ssh23:36:383
281839975,1cyclictest11301-21snmpd23:19:413
281839975,1cyclictest11301-21snmpd23:19:413
281839975,1cyclictest11301-21snmpd22:19:453
281839975,1cyclictest11301-21snmpd21:31:503
281839975,1cyclictest11301-21snmpd21:29:023
281839975,1cyclictest11301-21snmpd21:06:253
281839975,1cyclictest11301-21snmpd20:40:163
281839975,1cyclictest11301-21snmpd19:55:513
281839975,1cyclictest11301-21snmpd00:07:453
281839973,3cyclictest4537-21apt-get20:35:123
281839972,4cyclictest16552-21apt-get21:00:133
281839972,3cyclictest21239-21diskmemload21:46:273
281839971,3cyclictest27276-21apt-get22:50:133
281839971,3cyclictest21239-21diskmemload00:30:063
281839970,6cyclictest31256-21ssh21:22:303
281839970,6cyclictest21239-21diskmemload00:27:433
281839970,5cyclictest21239-21diskmemload23:56:493
281839970,4cyclictest11301-21snmpd22:03:303
281839970,4cyclictest0-21swapper/323:10:263
281839970,4cyclictest0-21swapper/321:10:133
281839970,3cyclictest0-21swapper/323:44:193
281799976,1cyclictest61650irq/122-eno122:29:372
281799976,1cyclictest61650irq/122-eno120:10:172
281799976,1cyclictest28-21ksoftirqd/221:10:012
281799976,0cyclictest61650irq/122-eno123:35:102
281799975,1cyclictest61650irq/122-eno123:25:112
281799975,1cyclictest61650irq/122-eno121:55:142
281799975,1cyclictest61650irq/122-eno121:40:192
281799975,1cyclictest61650irq/122-eno121:30:282
281799975,1cyclictest61650irq/122-eno121:10:162
281799975,1cyclictest61650irq/122-eno120:20:122
281799975,1cyclictest23750-21ssh22:45:072
281799975,1cyclictest12745-21ntpq20:50:152
281799975,1cyclictest11905-21/usr/sbin/munin00:00:172
281799975,1cyclictest11301-21snmpd20:25:272
281799973,3cyclictest324-21cron00:30:002
281799971,6cyclictest61650irq/122-eno119:23:072
281799971,1cyclictest0-21swapper/219:12:402
281799970,3cyclictest0-21swapper/222:35:122
281799970,3cyclictest0-21swapper/222:35:122
281799970,2cyclictest0-21swapper/222:15:112
281749971,6cyclictest0-21swapper/121:38:381
281749970,7cyclictest0-21swapper/119:14:331
281749970,6cyclictest0-21swapper/120:01:111
281749970,5cyclictest0-21swapper/121:15:161
281749970,4cyclictest0-21swapper/121:55:121
281749970,1cyclictest0-21swapper/123:00:141
281679976,1cyclictest6582-21ntpq23:05:200
281679976,1cyclictest6304-21/usr/sbin/munin22:20:110
281679976,1cyclictest30223-21ssh22:06:060
281679976,1cyclictest28157-21cyclictest00:25:180
281679975,1cyclictest25033-21readlink21:15:010
281679975,1cyclictest22990-21users21:55:200
281679975,1cyclictest22888-21df_inode00:15:140
281679975,1cyclictest1957-21runrttasks21:25:510
281679975,1cyclictest11301-21snmpd23:39:350
281679975,1cyclictest11301-21snmpd21:41:260
281679975,1cyclictest11301-21snmpd21:07:000
281679975,1cyclictest11301-21snmpd20:36:370
281679975,1cyclictest11301-21snmpd19:37:490
281679975,1cyclictest11301-21snmpd19:14:270
281679974,1cyclictest240-21systemd-journal20:35:000
281679973,3cyclictest9-21ksoftirqd/020:09:440
281679973,1cyclictest31702-21/usr/sbin/munin22:10:130
281679971,6cyclictest25817-21ssh22:00:170
281679971,6cyclictest0-21swapper/000:11:570
281679970,6cyclictest8636-21ssh23:10:010
281679970,6cyclictest3038-21ssh00:32:190
281679970,6cyclictest26057-21irqstats20:10:160
281679970,6cyclictest21300-21ssh23:25:210
281679970,6cyclictest21239-21diskmemload23:50:130
281679970,6cyclictest21239-21diskmemload22:45:180
281679970,6cyclictest18236-21df_inode21:50:120
281679970,6cyclictest16106-21ssh21:45:390
281679970,6cyclictest0-21swapper/020:40:140
281679970,6cyclictest0-21swapper/000:20:140
281679970,1cyclictest9914-21ssh22:25:130
281679970,1cyclictest4016-21cpuspeed_turbos19:25:140
281679970,1cyclictest26090-21ssh23:33:430
281679970,1cyclictest22635-21ssh22:42:120
281679970,1cyclictest14547-21ssh23:16:390
281679970,1cyclictest14547-21ssh23:16:380
281679970,1cyclictest0-21swapper/023:00:180
281679970,1cyclictest0-21swapper/022:32:570
281839965,1cyclictest8142-21cat21:35:173
281839965,1cyclictest4218-21ssh23:48:443
281839965,1cyclictest32617-21ssh22:55:293
281839965,1cyclictest26341-21ntpq21:15:193
281839965,1cyclictest2501-21ntpq19:20:173
281839965,1cyclictest21759-21ssh22:40:233
281839965,1cyclictest21239-21diskmemload00:23:433
281839965,1cyclictest1463-21ssh22:11:413
281839965,1cyclictest13561-21sshd20:52:553
281839965,1cyclictest13180-21ssh21:42:303
281839965,1cyclictest12891-21ssh22:29:373
281839965,1cyclictest11301-21snmpd20:19:183
281839964,1cyclictest31419-21apt-get19:15:123
281839964,1cyclictest25186-21systemctl22:45:193
281839964,1cyclictest11301-21snmpd20:56:073
281839964,1cyclictest11301-21snmpd00:35:313
281839964,1cyclictest11301-21snmpd00:00:063
281839962,3cyclictest21239-21diskmemload23:32:153
281839961,3cyclictest6082-21apt-get19:30:123
281839961,2cyclictest21239-21diskmemload22:33:193
281839960,3cyclictest6122-21/usr/sbin/munin23:50:193
281839960,3cyclictest0-21swapper/322:07:583
281839960,2cyclictest0-21swapper/323:21:043
281839960,0cyclictest0-21swapper/323:27:173
281799966,0cyclictest61650irq/122-eno122:55:122
281799966,0cyclictest61650irq/122-eno122:30:312
281799966,0cyclictest61650irq/122-eno122:10:322
281799966,0cyclictest61650irq/122-eno122:05:132
281799966,0cyclictest61650irq/122-eno121:21:102
281799966,0cyclictest61650irq/122-eno120:55:132
281799966,0cyclictest61650irq/122-eno120:45:222
281799966,0cyclictest61650irq/122-eno120:30:532
281799966,0cyclictest61650irq/122-eno119:39:072
281799966,0cyclictest61650irq/122-eno100:05:012
281799965,1cyclictest61650irq/122-eno123:40:122
281799965,1cyclictest61650irq/122-eno121:51:202
281799965,1cyclictest61650irq/122-eno119:55:122
281799965,1cyclictest61650irq/122-eno100:35:152
281799965,1cyclictest11943-21ntpq19:40:172
281799965,1cyclictest11301-21snmpd23:45:102
281799965,0cyclictest61650irq/122-eno119:30:122
281799964,1cyclictest61650irq/122-eno121:35:142
281799964,1cyclictest61650irq/122-eno120:40:132
281799960,6cyclictest0-21swapper/219:52:172
281799960,6cyclictest0-21swapper/219:46:382
281749964,1cyclictest2121-21chrt22:13:481
281749963,2cyclictest0-21swapper/120:25:001
281749962,3cyclictest0-21swapper/100:15:181
281749961,2cyclictest0-21swapper/100:24:101
281749960,6cyclictest0-21swapper/123:27:201
281749960,6cyclictest0-21swapper/122:36:371
281749960,6cyclictest0-21swapper/122:36:361
281749960,6cyclictest0-21swapper/122:23:271
281749960,6cyclictest0-21swapper/120:36:251
281749960,6cyclictest0-21swapper/100:01:361
281749960,5cyclictest0-21swapper/121:30:121
281749960,5cyclictest0-21swapper/120:57:341
281749960,5cyclictest0-21swapper/119:46:291
281749960,4cyclictest0-21swapper/100:25:361
281749960,3cyclictest0-21swapper/123:34:361
281749960,1cyclictest0-21swapper/123:50:211
281749960,1cyclictest0-21swapper/123:40:051
281749960,1cyclictest0-21swapper/121:29:311
281749960,1cyclictest0-21swapper/119:57:511
281749960,1cyclictest0-21swapper/100:34:281
281679965,1cyclictest2221-21ssh23:45:140
281679965,1cyclictest21465-21ssh21:10:070
281679964,1cyclictest9-21ksoftirqd/020:25:120
281679964,1cyclictest16679-21ntp_states19:50:180
281679964,1cyclictest11301-21snmpd20:46:430
281679963,2cyclictest11301-21snmpd20:22:380
281679960,6cyclictest0-21swapper/022:35:120
281679960,6cyclictest0-21swapper/022:35:120
281679960,6cyclictest0-21swapper/000:00:090
281679960,5cyclictest28431-21uname20:15:160
281679960,3cyclictest0-21swapper/019:40:110
281679960,1cyclictest3671-21ssh21:30:120
281679960,1cyclictest0-21swapper/020:50:110
281679960,0cyclictest21239-21diskmemload00:05:150
281679960,0cyclictest0-21swapper/023:20:120
281839953,1cyclictest28362-21seq19:10:053
281839953,1cyclictest14326-21ntp_states19:45:183
281839952,1cyclictest21239-21diskmemload22:35:183
281839952,1cyclictest21239-21diskmemload22:35:183
281839952,0cyclictest21239-21diskmemload00:10:153
281839951,1cyclictest0-21swapper/320:30:113
281839950,5cyclictest0-21swapper/319:43:023
281839950,4cyclictest11014-21seq20:45:243
281839950,0cyclictest0-21swapper/320:08:263
281799952,2cyclictest16855-21cut21:00:152
281749955,0cyclictest0-21swapper/123:10:421
281749951,2cyclictest0-21swapper/122:05:201
281749950,5cyclictest0-21swapper/123:45:471
281749950,5cyclictest0-21swapper/122:16:141
281749950,5cyclictest0-21swapper/120:47:041
281749950,4cyclictest0-21swapper/122:52:531
281749950,4cyclictest0-21swapper/122:45:011
281749950,4cyclictest0-21swapper/121:20:151
281749950,4cyclictest0-21swapper/120:15:211
281749950,2cyclictest0-21swapper/120:55:001
281749950,0cyclictest0-21swapper/120:40:131
281679951,0cyclictest0-21swapper/019:30:170
281679950,5cyclictest0-21swapper/021:00:140
281679950,5cyclictest0-21swapper/019:55:050
281679950,4cyclictest14326-21ntp_states19:45:180
281679950,1cyclictest21522-21needreboot20:00:180
281839940,1cyclictest872-21cat20:25:163
281749942,1cyclictest3732-21chrt19:25:121
281749942,1cyclictest0-21swapper/122:45:101
281749941,1cyclictest0-21swapper/120:10:131
281749941,1cyclictest0-21swapper/119:55:011
281749940,4cyclictest0-21swapper/123:15:191
281749940,4cyclictest0-21swapper/123:15:191
281749940,4cyclictest0-21swapper/119:36:231
281749940,3cyclictest0-21swapper/122:57:321
281749940,3cyclictest0-21swapper/121:50:231
281749940,2cyclictest0-21swapper/123:35:041
281749940,2cyclictest0-21swapper/121:45:591
281749940,2cyclictest0-21swapper/120:05:131
281749940,2cyclictest0-21swapper/119:20:111
281749940,2cyclictest0-21swapper/100:05:211
281749940,1cyclictest0-21swapper/122:29:371
281749940,0cyclictest0-21swapper/121:09:541
281749940,0cyclictest0-21swapper/120:30:181
281749931,1cyclictest0-21swapper/120:25:111
281749931,1cyclictest0-21swapper/119:40:101
281749931,1cyclictest0-21swapper/119:30:111
281749930,0cyclictest0-21swapper/121:00:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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