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2026-09-18 - 01:48
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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 Fri Sep 18, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272602212149,22sleep30-21swapper/319:07:153
273242202158,30sleep00-21swapper/019:08:050
274032200163,24sleep20-21swapper/219:09:072
272312198161,24sleep10-21swapper/119:06:531
40492580,0sleep10-21swapper/123:50:171
315452220,0sleep10-21swapper/122:55:211
27588991818,0cyclictest35-21ksoftirqd/322:50:143
27567991413,1cyclictest9-21ksoftirqd/019:15:000
2758199130,12cyclictest14935-21/usr/sbin/munin23:20:202
27567991312,1cyclictest9-21ksoftirqd/000:25:120
27567991311,1cyclictest9-21ksoftirqd/000:05:220
27567991211,1cyclictest9-21ksoftirqd/023:35:170
27567991211,1cyclictest9-21ksoftirqd/023:35:170
27567991211,1cyclictest9-21ksoftirqd/022:30:150
27567991211,1cyclictest9-21ksoftirqd/022:05:000
27567991210,1cyclictest9-21ksoftirqd/021:05:000
27567991210,1cyclictest9-21ksoftirqd/000:10:190
27588991111,0cyclictest35-21ksoftirqd/300:05:003
27588991110,1cyclictest35-21ksoftirqd/320:20:013
27588991110,1cyclictest35-21ksoftirqd/319:45:003
2758199111,9cyclictest29919-21munin-node22:32:372
2757599110,11cyclictest0-21swapper/120:45:121
2756799119,1cyclictest9-21ksoftirqd/021:45:060
2756799119,1cyclictest9-21ksoftirqd/000:00:230
27567991111,0cyclictest9-21ksoftirqd/020:50:200
27567991110,1cyclictest9-21ksoftirqd/023:30:000
27567991110,1cyclictest9-21ksoftirqd/023:05:110
27567991110,1cyclictest9-21ksoftirqd/022:10:100
27567991110,1cyclictest9-21ksoftirqd/019:20:010
2758899109,1cyclictest35-21ksoftirqd/300:30:183
2758899108,1cyclictest35-21ksoftirqd/323:40:153
27588991010,0cyclictest35-21ksoftirqd/322:20:123
2758899100,1cyclictest31290-21latency_hist21:25:003
2756799109,1cyclictest9-21ksoftirqd/023:15:200
2756799109,1cyclictest9-21ksoftirqd/021:20:130
2756799109,1cyclictest9-21ksoftirqd/020:25:110
2756799108,1cyclictest9-21ksoftirqd/020:15:110
27567991010,0cyclictest9-21ksoftirqd/023:55:150
27567991010,0cyclictest9-21ksoftirqd/021:19:430
231042100,0sleep020628-21diskmemload21:12:080
275889998,1cyclictest35-21ksoftirqd/323:55:153
275889998,1cyclictest35-21ksoftirqd/323:35:213
275889998,1cyclictest35-21ksoftirqd/323:35:213
275889998,1cyclictest35-21ksoftirqd/321:40:163
275889998,1cyclictest35-21ksoftirqd/300:35:153
275889998,1cyclictest35-21ksoftirqd/300:30:013
275889998,0cyclictest20628-21diskmemload22:46:423
275889997,1cyclictest35-21ksoftirqd/321:25:133
275889997,1cyclictest35-21ksoftirqd/300:20:153
275819990,4cyclictest0-21swapper/200:15:122
275819990,1cyclictest0-21swapper/220:30:112
275759995,4cyclictest21-21ksoftirqd/121:18:471
275759990,2cyclictest0-21swapper/121:00:121
275679998,1cyclictest9-21ksoftirqd/023:45:120
275679998,1cyclictest9-21ksoftirqd/023:20:160
275679998,1cyclictest9-21ksoftirqd/022:35:120
275679998,1cyclictest9-21ksoftirqd/022:09:310
275679998,1cyclictest9-21ksoftirqd/021:50:130
275679998,1cyclictest9-21ksoftirqd/019:25:120
275679997,1cyclictest9-21ksoftirqd/022:20:150
275889988,0cyclictest35-21ksoftirqd/323:50:153
275889988,0cyclictest35-21ksoftirqd/321:10:163
275889987,1cyclictest35-21ksoftirqd/323:15:163
275889987,1cyclictest35-21ksoftirqd/322:25:183
275889987,1cyclictest35-21ksoftirqd/319:10:113
275889987,0cyclictest35-21ksoftirqd/321:33:433
275889986,1cyclictest35-21ksoftirqd/319:55:003
275889982,3cyclictest24746-21apt-get20:10:113
275889981,5cyclictest23923-21apt-get22:00:123
275819986,1cyclictest61650irq/122-eno123:34:002
275819986,1cyclictest61650irq/122-eno123:00:002
275819986,1cyclictest61650irq/122-eno121:32:442
275819986,1cyclictest61650irq/122-eno121:25:172
275819986,1cyclictest61650irq/122-eno119:40:142
275819986,1cyclictest61650irq/122-eno100:25:012
275819986,1cyclictest61650irq/122-eno100:10:192
275819986,1cyclictest11301-21snmpd20:49:182
275819984,3cyclictest25320-21apt-get23:35:102
275819984,3cyclictest25320-21apt-get23:35:102
275819984,1cyclictest61650irq/122-eno100:08:142
275819984,0cyclictest20628-21diskmemload22:10:192
275819981,6cyclictest0-21swapper/222:42:002
275759988,0cyclictest21-21ksoftirqd/122:29:461
275759986,1cyclictest111rcu_preempt00:20:191
275759984,0cyclictest56-21kworker/1:100:06:431
275759981,1cyclictest0-21swapper/120:17:111
275679988,0cyclictest9-21ksoftirqd/022:55:150
275679988,0cyclictest9-21ksoftirqd/021:40:210
275679988,0cyclictest9-21ksoftirqd/021:30:130
275679988,0cyclictest9-21ksoftirqd/000:35:180
275679987,1cyclictest9-21ksoftirqd/023:50:140
275679987,1cyclictest9-21ksoftirqd/023:40:120
275679987,1cyclictest9-21ksoftirqd/023:30:210
275679987,1cyclictest9-21ksoftirqd/023:15:000
275679987,1cyclictest9-21ksoftirqd/021:05:110
275679987,1cyclictest9-21ksoftirqd/021:05:110
275679987,1cyclictest20950-21ssh21:55:150
275679986,1cyclictest9-21ksoftirqd/021:25:140
275679986,1cyclictest11301-21snmpd19:51:040
275679986,1cyclictest11301-21snmpd19:39:450
275679986,1cyclictest11301-21snmpd19:23:060
275679986,1cyclictest11301-21snmpd00:17:100
275679985,1cyclictest240-21systemd-journal22:50:000
275679980,4cyclictest29720-21ssh22:55:000
275889977,0cyclictest35-21ksoftirqd/300:05:153
275889976,1cyclictest35-21ksoftirqd/319:25:003
275889976,1cyclictest19300-21unixbench_multi19:55:203
275889975,1cyclictest35-21ksoftirqd/319:30:133
275889975,1cyclictest11301-21snmpd22:55:343
275889975,1cyclictest11301-21snmpd19:24:363
275889973,2cyclictest240-21systemd-journal22:35:003
275889972,2cyclictest693-21runrttasks23:02:153
275889972,1cyclictest0-21swapper/322:35:143
275889971,4cyclictest0-21swapper/322:13:233
275889971,3cyclictest0-21swapper/322:40:153
275889970,5cyclictest341rcuc/323:10:003
275889970,4cyclictest0-21swapper/322:05:113
275889970,3cyclictest31914-21/usr/sbin/munin19:15:163
275889970,1cyclictest4018-21latency_hist20:35:003
275889970,1cyclictest0-21swapper/322:15:123
275819977,0cyclictest0-21swapper/222:15:522
275819976,1cyclictest61650irq/122-eno123:58:472
275819976,1cyclictest61650irq/122-eno123:10:162
275819976,1cyclictest61650irq/122-eno121:35:112
275819976,1cyclictest61650irq/122-eno121:05:142
275819976,1cyclictest61650irq/122-eno121:05:142
275819976,1cyclictest61650irq/122-eno120:40:122
275819976,1cyclictest61650irq/122-eno119:30:162
275819976,1cyclictest61650irq/122-eno100:20:092
275819976,1cyclictest61650irq/122-eno100:04:262
275819975,1cyclictest61650irq/122-eno123:25:182
275819975,1cyclictest61650irq/122-eno122:50:122
275819975,1cyclictest61650irq/122-eno122:05:132
275819975,1cyclictest61650irq/122-eno122:00:132
275819975,1cyclictest29487-21apt-get20:20:102
275819975,1cyclictest27683-21systemctl21:20:012
275819975,1cyclictest11301-21snmpd23:15:142
275819975,1cyclictest11301-21snmpd21:22:572
275819973,2cyclictest240-21systemd-journal20:15:012
275819971,6cyclictest0-21swapper/200:32:582
275819971,3cyclictest30264-21sed19:15:012
275819970,6cyclictest61650irq/122-eno122:48:292
275819970,6cyclictest0-21swapper/219:27:182
275819970,6cyclictest0-21swapper/219:24:462
275819970,4cyclictest0-21swapper/223:50:162
275819970,3cyclictest0-21swapper/221:55:122
275819970,2cyclictest0-21swapper/220:05:122
275759977,0cyclictest21-21ksoftirqd/119:10:121
275759974,3cyclictest0-21swapper/119:38:021
275759973,4cyclictest21-21ksoftirqd/121:41:101
275759971,6cyclictest0-21swapper/120:28:141
275759971,4cyclictest56-21kworker/1:123:45:591
275759971,3cyclictest0-21swapper/120:35:151
275759971,1cyclictest0-21swapper/119:24:571
275759970,7cyclictest0-21swapper/123:08:371
275759970,7cyclictest0-21swapper/123:00:221
275759970,6cyclictest0-21swapper/123:10:151
275759970,5cyclictest0-21swapper/121:05:121
275759970,5cyclictest0-21swapper/121:05:121
275759970,4cyclictest0-21swapper/123:19:561
275759970,3cyclictest0-21swapper/100:12:491
275759970,2cyclictest0-21swapper/122:05:111
275759970,2cyclictest0-21swapper/119:30:111
275759970,2cyclictest0-21swapper/119:25:121
275759970,1cyclictest111rcu_preempt20:55:111
275679977,0cyclictest9-21ksoftirqd/022:40:150
275679976,1cyclictest9-21ksoftirqd/020:30:130
275679976,1cyclictest9-21ksoftirqd/019:45:110
275679976,1cyclictest11301-21snmpd00:20:100
275679975,1cyclictest11301-21snmpd22:15:090
275679970,7cyclictest0-21swapper/020:05:190
275679970,6cyclictest30716-21ls20:20:170
275679970,6cyclictest20628-21diskmemload22:25:040
275679970,1cyclictest0-21swapper/020:03:160
275679970,1cyclictest0-21swapper/000:30:110
19773270,0sleep30-21swapper/321:53:493
275889965,1cyclictest9852-21ssh23:10:403
275889965,1cyclictest7470-21ntpq21:35:163
275889965,1cyclictest35-21ksoftirqd/320:05:153
275889965,1cyclictest26724-21ssh21:17:133
275889965,1cyclictest19503-21ssh00:11:173
275889965,1cyclictest16958-21ssh23:21:113
275889965,1cyclictest11301-21snmpd20:24:393
275889965,1cyclictest11301-21snmpd19:46:043
275889964,1cyclictest35-21ksoftirqd/323:30:173
275889964,1cyclictest35-21ksoftirqd/320:55:003
275889964,1cyclictest35-21ksoftirqd/300:15:163
275889963,2cyclictest18407-21apt-get23:25:113
275889962,3cyclictest22167-21perf20:05:003
275889961,3cyclictest4334-21apt-get20:35:123
275889961,3cyclictest20628-21diskmemload21:55:143
275889961,2cyclictest343-21taskset23:45:133
275889961,2cyclictest11301-21snmpd21:46:213
275889960,1cyclictest240-21systemd-journal20:44:553
275819966,0cyclictest61650irq/122-eno123:40:012
275819966,0cyclictest61650irq/122-eno123:05:122
275819966,0cyclictest61650irq/122-eno123:00:182
275819966,0cyclictest61650irq/122-eno122:25:062
275819966,0cyclictest61650irq/122-eno121:40:132
275819966,0cyclictest61650irq/122-eno120:25:212
275819966,0cyclictest61650irq/122-eno119:15:162
275819965,1cyclictest61650irq/122-eno121:10:152
275819965,1cyclictest26603-21sshd20:11:482
275819964,1cyclictest61650irq/122-eno121:45:192
275819964,1cyclictest61650irq/122-eno120:55:132
275819964,1cyclictest61650irq/122-eno120:35:142
275819963,2cyclictest22147-21cron20:05:002
275819961,4cyclictest16144-21apt-get21:00:122
275819961,4cyclictest16101-21apt-get22:35:142
275819961,2cyclictest0-21swapper/220:50:122
275819961,1cyclictest0-21swapper/221:50:092
275819960,2cyclictest0-21swapper/223:45:112
275819960,2cyclictest0-21swapper/222:20:122
275759966,0cyclictest0-21swapper/122:19:201
275759962,4cyclictest0-21swapper/121:25:381
275759962,2cyclictest0-21swapper/122:50:151
275759962,1cyclictest0-21swapper/122:40:121
275759962,1cyclictest0-21swapper/122:30:241
275759961,3cyclictest0-21swapper/121:50:141
275759961,3cyclictest0-21swapper/100:03:261
275759960,6cyclictest0-21swapper/122:38:321
275759960,6cyclictest0-21swapper/122:04:351
275759960,6cyclictest0-21swapper/120:21:081
275759960,6cyclictest0-21swapper/119:16:361
275759960,5cyclictest0-21swapper/123:40:201
275759960,5cyclictest0-21swapper/123:30:171
275759960,5cyclictest0-21swapper/120:02:491
275759960,5cyclictest0-21swapper/119:52:101
275759960,3cyclictest0-21swapper/122:46:371
275759960,3cyclictest0-21swapper/121:38:491
275759960,3cyclictest0-21swapper/121:11:241
275759960,3cyclictest0-21swapper/100:17:221
275759960,2cyclictest0-21swapper/123:26:531
275759960,2cyclictest0-21swapper/122:24:431
275759960,2cyclictest0-21swapper/121:30:101
275759960,2cyclictest0-21swapper/120:30:191
275759960,2cyclictest0-21swapper/100:26:561
275679965,1cyclictest9-21ksoftirqd/020:13:040
275679965,1cyclictest6465-21munin-run20:40:000
275679965,1cyclictest2227-21ntpq23:00:200
275679965,1cyclictest12210-21/usr/sbin/munin19:40:200
275679965,1cyclictest11301-21snmpd19:31:390
275679960,5cyclictest15188-21/usr/sbin/munin20:55:190
275679960,0cyclictest0-21swapper/021:35:200
275679960,0cyclictest0-21swapper/019:55:110
15702260,1sleep10-21swapper/121:46:501
275889955,0cyclictest35-21ksoftirqd/320:25:133
275889954,1cyclictest35-21ksoftirqd/321:05:193
275889954,1cyclictest35-21ksoftirqd/321:05:193
275889954,1cyclictest11301-21snmpd20:49:063
275889953,1cyclictest17590-21/usr/sbin/munin21:00:203
275819955,0cyclictest61650irq/122-eno119:52:542
275819955,0cyclictest61650irq/122-eno119:45:152
275819953,1cyclictest18466-21hddtemp_smartct19:55:142
275819950,2cyclictest0-21swapper/200:35:122
275819950,1cyclictest0-21swapper/219:35:112
275759955,0cyclictest0-21swapper/119:40:111
275759951,3cyclictest0-21swapper/100:36:351
275759951,2cyclictest111rcu_preempt19:45:201
275759951,2cyclictest0-21swapper/100:32:421
275759950,4cyclictest0-21swapper/120:50:151
275759950,3cyclictest0-21swapper/123:55:131
275759950,2cyclictest0-21swapper/123:20:381
275759950,2cyclictest0-21swapper/122:10:131
275759950,1cyclictest0-21swapper/121:57:221
275759950,1cyclictest0-21swapper/121:20:531
275759950,0cyclictest0-21swapper/123:36:541
275759950,0cyclictest0-21swapper/123:36:541
275679952,1cyclictest0-21swapper/020:40:180
275679950,1cyclictest0-21swapper/020:45:210
275889943,1cyclictest35-21ksoftirqd/320:55:063
275889942,1cyclictest8565-21expr19:35:133
275759940,4cyclictest0-21swapper/120:13:311
275759940,4cyclictest0-21swapper/120:05:161
275759940,2cyclictest0-21swapper/119:55:141
275759940,1cyclictest0-21swapper/120:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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