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2026-07-14 - 15:21
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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 Tue Jul 14, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127842218158,27sleep30-21swapper/307:07:193
128162210159,25sleep00-21swapper/007:07:440
128382200160,26sleep20-21swapper/207:08:032
128372200161,26sleep10-21swapper/107:08:011
254332160,0sleep00-21swapper/012:32:490
160812130,0sleep00-21swapper/011:35:180
1308299130,12cyclictest0-21swapper/211:04:132
13091991110,1cyclictest35-21ksoftirqd/312:40:003
1308299119,1cyclictest28-21ksoftirqd/211:10:002
1308299119,1cyclictest28-21ksoftirqd/208:00:002
1308299110,10cyclictest0-21swapper/210:27:012
1307599110,10cyclictest0-21swapper/109:35:131
1307399113,4cyclictest24892-21latency_hist10:20:000
13073991110,1cyclictest9-21ksoftirqd/010:50:000
1309199109,1cyclictest35-21ksoftirqd/310:40:003
13091991010,0cyclictest35-21ksoftirqd/310:45:013
1308299109,1cyclictest28-21ksoftirqd/210:38:292
1308299109,1cyclictest28-21ksoftirqd/210:20:012
1308299109,1cyclictest28-21ksoftirqd/207:50:002
1308299108,1cyclictest28-21ksoftirqd/210:45:002
1308299100,1cyclictest0-21swapper/212:34:462
1307399109,1cyclictest9-21ksoftirqd/012:30:010
1307399103,6cyclictest4246-21kworker/u8:211:20:130
130919998,1cyclictest35-21ksoftirqd/309:45:013
130919997,1cyclictest35-21ksoftirqd/311:50:013
130919997,1cyclictest35-21ksoftirqd/311:40:133
130919997,1cyclictest35-21ksoftirqd/311:31:443
130919991,7cyclictest1982-21sendmail-mta11:58:103
130919990,1cyclictest0-21swapper/312:10:123
130829998,1cyclictest28-21ksoftirqd/209:35:142
130829998,1cyclictest28-21ksoftirqd/207:20:002
130829997,1cyclictest28-21ksoftirqd/208:25:002
130829997,1cyclictest28-21ksoftirqd/207:35:002
130829990,8cyclictest0-21swapper/210:30:382
1889280,0sleep10-21swapper/109:46:501
130919986,1cyclictest35-21ksoftirqd/309:00:113
130919985,1cyclictest240-21systemd-journal07:38:003
130919983,3cyclictest13789-1kworker/u9:210:50:173
130919980,1cyclictest0-21swapper/308:15:123
130829988,0cyclictest28-21ksoftirqd/209:55:212
130829986,1cyclictest61650irq/122-eno112:11:212
130829986,1cyclictest61650irq/122-eno111:50:212
130829986,1cyclictest61650irq/122-eno110:57:552
130829986,1cyclictest28-21ksoftirqd/211:20:142
130829986,1cyclictest28-21ksoftirqd/209:00:002
130829986,1cyclictest28-21ksoftirqd/208:30:002
130829986,1cyclictest28-21ksoftirqd/208:20:002
130829985,2cyclictest5721-21diskmemload11:15:162
130829982,5cyclictest185872sleep212:24:032
130829980,7cyclictest15631-21munin-node11:45:052
130829980,5cyclictest19267-21python10:10:192
130759980,4cyclictest0-21swapper/109:40:211
130759980,4cyclictest0-21swapper/107:45:131
130739987,1cyclictest9-21ksoftirqd/007:34:160
130739987,1cyclictest4652-21ssh12:05:060
130739984,0cyclictest0-21swapper/009:15:140
130739982,3cyclictest15442-21latency_hist07:15:000
130739981,6cyclictest20081-21ssh10:11:460
130739981,1cyclictest9618-21ssh10:42:040
130739980,7cyclictest1463-21ssh09:45:350
130739980,4cyclictest3888-21munin-run11:20:000
130739980,4cyclictest15350-21perf12:20:000
130739980,3cyclictest0-21swapper/010:05:140
130739980,3cyclictest0-21swapper/007:45:130
130739980,2cyclictest0-21swapper/009:25:130
130739980,1cyclictest31388-21ssh09:43:580
8695270,0sleep10-21swapper/109:13:371
130919976,1cyclictest35-21ksoftirqd/312:00:153
130919976,1cyclictest35-21ksoftirqd/310:25:013
130919976,1cyclictest35-21ksoftirqd/310:15:153
130919976,1cyclictest35-21ksoftirqd/310:05:003
130919976,1cyclictest35-21ksoftirqd/308:55:003
130919976,1cyclictest1307-21cat07:50:173
130919975,2cyclictest0-21swapper/312:32:443
130919975,1cyclictest6880-21/usr/sbin/munin09:55:203
130919975,1cyclictest4156-21cat09:50:143
130919975,1cyclictest17682-21ssh11:37:503
130919972,3cyclictest5721-21diskmemload10:30:173
130919971,4cyclictest0-21swapper/310:57:183
130919970,6cyclictest5721-21diskmemload09:10:113
130919970,6cyclictest0-21swapper/312:23:063
130829976,1cyclictest61650irq/122-eno111:30:462
130829976,1cyclictest61650irq/122-eno110:50:102
130829976,1cyclictest61650irq/122-eno110:20:112
130829976,1cyclictest61650irq/122-eno109:48:472
130829976,1cyclictest61650irq/122-eno109:27:272
130829976,1cyclictest61650irq/122-eno109:15:492
130829976,1cyclictest28-21ksoftirqd/208:40:002
130829976,1cyclictest11734-21ntpq10:00:182
130829976,0cyclictest61650irq/122-eno111:37:452
130829975,1cyclictest3972-21ssh09:50:142
130829975,1cyclictest28-21ksoftirqd/212:35:132
130829975,1cyclictest28-21ksoftirqd/208:40:122
130829975,1cyclictest28-21ksoftirqd/208:15:002
130829975,1cyclictest28-21ksoftirqd/207:35:152
130829975,1cyclictest28-21ksoftirqd/207:22:172
130829975,1cyclictest20920-21ssh11:41:362
130829974,1cyclictest240-21systemd-journal08:05:022
130829974,1cyclictest0-21swapper/212:15:232
130829972,2cyclictest693-21runrttasks10:45:552
130829970,4cyclictest6064-21basename09:10:112
130759971,4cyclictest0-21swapper/112:30:111
130759971,3cyclictest0-21swapper/108:25:141
130759970,4cyclictest0-21swapper/111:15:041
130759970,4cyclictest0-21swapper/111:10:141
130759970,2cyclictest0-21swapper/112:17:281
130739975,1cyclictest28742-21ssh11:09:140
130739975,1cyclictest27694-1kworker/u9:110:25:130
130739972,4cyclictest9-21ksoftirqd/012:00:210
130739971,6cyclictest9009-21ssh12:10:160
130739970,7cyclictest27239-21ssh10:21:210
130739970,6cyclictest8327-21ssh09:12:340
130739970,6cyclictest5721-21diskmemload09:51:040
130739970,6cyclictest27213-21memory11:50:170
130739970,6cyclictest24696-21ssh11:46:250
130739970,6cyclictest2315-21ssh10:32:040
130739970,6cyclictest21020-21sed07:25:000
130739970,6cyclictest20617-21ssh10:56:440
130739970,6cyclictest18479-21ssh12:23:420
130739970,6cyclictest14739-21/usr/sbin/munin10:50:170
130739970,6cyclictest11432-1kworker/u9:211:30:100
130739970,6cyclictest0-21swapper/008:40:130
130739970,1cyclictest5721-21diskmemload09:58:510
130739970,1cyclictest31010-21/usr/sbin/munin11:55:190
130739970,1cyclictest29574-21ssh12:39:220
130739970,1cyclictest24733-21ssh11:03:060
130739970,1cyclictest240-21systemd-journal10:35:030
130739970,1cyclictest22919-21ssh09:30:460
130739970,1cyclictest21965-21irqstats07:25:170
130739970,1cyclictest21127-21ssh11:42:120
130739970,1cyclictest0-21swapper/009:38:240
130739970,1cyclictest0-21swapper/009:05:130
130919965,1cyclictest5417-21sshd09:06:163
130919965,1cyclictest5086-21cat11:20:183
130919965,1cyclictest35-21ksoftirqd/312:15:003
130919965,1cyclictest35-21ksoftirqd/311:50:003
130919965,1cyclictest35-21ksoftirqd/308:35:003
130919965,1cyclictest35-21ksoftirqd/308:25:013
130919965,1cyclictest2804-21ssh11:16:523
130919965,1cyclictest27850-21ssh11:06:333
130919965,1cyclictest26079-21sshd08:44:163
130919965,1cyclictest16770-21ssh10:07:453
130919965,1cyclictest10435-21ssh11:27:523
130919965,1cyclictest10435-21ssh11:27:523
130919964,1cyclictest35-21ksoftirqd/308:30:003
130919964,1cyclictest35-21ksoftirqd/307:15:013
130919964,1cyclictest23851-21ssh11:00:263
130919964,1cyclictest21267-21ssh12:26:123
130919963,2cyclictest25664-21irqstats09:35:163
130919963,1cyclictest5721-21diskmemload10:26:083
130919962,2cyclictest5721-21diskmemload09:20:473
130919962,2cyclictest240-21systemd-journal07:11:003
130919962,1cyclictest5721-21diskmemload09:30:183
130919961,3cyclictest5721-21diskmemload11:10:023
130919961,3cyclictest0-21swapper/309:45:093
130919961,3cyclictest0-21swapper/307:25:133
130919961,2cyclictest240-21systemd-journal07:43:463
130919961,1cyclictest18155-21/usr/sbin/munin10:10:123
130919961,1cyclictest0-21swapper/309:28:343
130919960,6cyclictest0-21swapper/308:58:213
130919960,4cyclictest0-21swapper/309:16:333
130919960,1cyclictest240-21systemd-journal07:24:553
130919960,1cyclictest0-21swapper/312:05:123
130829966,0cyclictest61650irq/122-eno112:25:102
130829966,0cyclictest61650irq/122-eno112:00:322
130829966,0cyclictest61650irq/122-eno110:05:122
130829966,0cyclictest61650irq/122-eno109:40:592
130829966,0cyclictest61650irq/122-eno108:45:132
130829965,1cyclictest61650irq/122-eno112:06:102
130829965,1cyclictest61650irq/122-eno111:55:152
130829965,1cyclictest28-21ksoftirqd/211:25:002
130829965,1cyclictest28-21ksoftirqd/211:25:002
130829965,1cyclictest28-21ksoftirqd/209:05:012
130829964,1cyclictest61650irq/122-eno107:40:132
130829963,2cyclictest693-21runrttasks08:01:112
130829963,1cyclictest240-21systemd-journal08:30:012
130829961,4cyclictest1040-21apt-get09:00:112
130829961,3cyclictest22076-21sh09:30:172
130829960,5cyclictest13515-21aten_r1power_po09:20:122
130829960,4cyclictest29449-21aten_r1power_vo11:10:122
130759962,2cyclictest0-21swapper/111:53:491
130759961,3cyclictest0-21swapper/111:28:051
130759961,3cyclictest0-21swapper/111:28:051
130759961,3cyclictest0-21swapper/110:25:121
130759960,6cyclictest0-21swapper/107:30:151
130759960,5cyclictest0-21swapper/109:55:161
130759960,4cyclictest0-21swapper/110:30:211
130759960,4cyclictest0-21swapper/108:15:181
130759960,3cyclictest0-21swapper/112:20:061
130759960,3cyclictest0-21swapper/112:05:161
130759960,3cyclictest0-21swapper/111:05:111
130759960,3cyclictest0-21swapper/110:39:411
130759960,2cyclictest0-21swapper/108:10:111
130739965,1cyclictest9-21ksoftirqd/008:05:310
130739965,1cyclictest18119-21ntpq08:25:190
130739962,1cyclictest5721-21diskmemload09:20:160
130739961,2cyclictest0-21swapper/008:00:100
130739961,1cyclictest20374-21/usr/sbin/munin08:30:180
130739960,6cyclictest11840-21sshd08:13:250
130739960,6cyclictest0-21swapper/011:10:150
130739960,6cyclictest0-21swapper/010:01:530
130739960,6cyclictest0-21swapper/008:47:350
130739960,6cyclictest0-21swapper/008:17:450
130739960,6cyclictest0-21swapper/007:41:300
130739960,0cyclictest0-21swapper/011:25:130
130739960,0cyclictest0-21swapper/011:25:120
130739960,0cyclictest0-21swapper/008:50:350
130739960,0cyclictest0-21swapper/008:35:090
6222250,0sleep10-21swapper/111:21:101
130919954,1cyclictest35-21ksoftirqd/308:45:113
130919953,1cyclictest3572-21sed07:55:153
130919953,1cyclictest35-21ksoftirqd/308:00:163
130919953,1cyclictest22401-21grep08:35:133
130919952,1cyclictest240-21systemd-journal10:40:333
130919952,1cyclictest240-21systemd-journal07:35:003
130919951,2cyclictest7502-21/usr/sbin/munin08:05:113
130919951,1cyclictest240-21systemd-journal07:45:153
130829955,0cyclictest61650irq/122-eno107:51:552
130829955,0cyclictest61650irq/122-eno107:25:222
130829954,1cyclictest61650irq/122-eno108:50:112
130829950,0cyclictest0-21swapper/207:10:132
130759955,0cyclictest0-21swapper/112:10:211
130759955,0cyclictest0-21swapper/109:28:311
130759955,0cyclictest0-21swapper/108:20:111
130759952,3cyclictest0-21swapper/110:20:111
130759952,1cyclictest244242sleep110:18:531
130759951,3cyclictest0-21swapper/109:50:101
130759950,5cyclictest0-21swapper/111:55:171
130759950,5cyclictest0-21swapper/110:00:151
130759950,5cyclictest0-21swapper/107:15:191
130759950,4cyclictest0-21swapper/110:06:071
130759950,3cyclictest0-21swapper/112:35:131
130759950,3cyclictest0-21swapper/110:55:131
130759950,3cyclictest0-21swapper/110:47:081
130759950,2cyclictest0-21swapper/111:05:001
130759950,2cyclictest0-21swapper/110:40:411
130759950,2cyclictest0-21swapper/109:32:161
130759950,2cyclictest0-21swapper/107:55:181
130759950,1cyclictest0-21swapper/110:52:151
130759950,0cyclictest0-21swapper/111:40:581
130759950,0cyclictest0-21swapper/110:13:291
130759950,0cyclictest0-21swapper/109:24:221
130739954,1cyclictest15631-21munin-node07:15:010
130739950,5cyclictest0-21swapper/008:20:180
130739950,5cyclictest0-21swapper/007:55:120
130739950,4cyclictest381-21/usr/sbin/munin07:50:130
130739950,0cyclictest0-21swapper/009:03:320
130739950,0cyclictest0-21swapper/008:55:150
25529240,0sleep10-21swapper/108:40:211
130919940,2cyclictest10364-21df_inode08:10:143
130759944,0cyclictest0-21swapper/112:00:501
130759943,0cyclictest0-21swapper/109:15:111
130759942,1cyclictest2208-21chrt07:50:551
130759941,2cyclictest0-21swapper/108:35:091
130759941,1cyclictest0-21swapper/108:50:141
130759940,3cyclictest0-21swapper/109:05:161
130759940,2cyclictest0-21swapper/112:25:121
130759940,2cyclictest0-21swapper/107:45:001
130759940,1cyclictest0-21swapper/111:49:071
130759940,1cyclictest0-21swapper/111:36:141
130759940,1cyclictest0-21swapper/108:55:121
130759940,1cyclictest0-21swapper/108:30:151
130759940,1cyclictest0-21swapper/108:00:101
130759940,0cyclictest0-21swapper/111:30:211
130739940,4cyclictest0-21swapper/007:35:030
130759931,1cyclictest0-21swapper/109:00:111
130759931,1cyclictest0-21swapper/107:35:121
130759931,1cyclictest0-21swapper/107:20:121
130759930,3cyclictest0-21swapper/107:25:221
130759930,2cyclictest0-21swapper/108:05:151
130759930,1cyclictest0-21swapper/108:45:111
130759930,0cyclictest0-21swapper/107:10:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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