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2026-07-21 - 02:42
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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 21, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225772235160,25sleep20-21swapper/219:08:512
223622210172,24sleep00-21swapper/019:06:040
224562200161,26sleep30-21swapper/319:07:153
223682199163,23sleep10-21swapper/119:06:081
21452180,0sleep10-21swapper/120:40:131
2275799140,1cyclictest0-21swapper/222:35:122
22748991211,1cyclictest9-21ksoftirqd/022:50:150
22748991211,1cyclictest9-21ksoftirqd/000:25:000
22748991210,1cyclictest9-21ksoftirqd/023:05:000
2274899119,1cyclictest9-21ksoftirqd/022:25:000
2274899119,1cyclictest9-21ksoftirqd/020:00:010
22748991111,0cyclictest9-21ksoftirqd/023:07:100
22748991110,1cyclictest9-21ksoftirqd/023:55:120
22748991110,1cyclictest9-21ksoftirqd/022:50:000
22748991110,1cyclictest9-21ksoftirqd/022:05:130
22748991110,1cyclictest9-21ksoftirqd/019:40:000
2276599107,2cyclictest0-21swapper/321:48:423
2275799109,0cyclictest0-21swapper/222:55:122
2274899109,1cyclictest9-21ksoftirqd/000:35:140
2274899108,1cyclictest9-21ksoftirqd/022:55:160
2274899108,1cyclictest9-21ksoftirqd/019:25:170
2274899108,1cyclictest9-21ksoftirqd/000:10:140
22748991010,0cyclictest9-21ksoftirqd/023:15:160
2274899100,7cyclictest29784-21python19:20:200
2274899100,6cyclictest240-21systemd-journal20:40:000
227659998,1cyclictest35-21ksoftirqd/320:05:133
227659990,5cyclictest0-21swapper/321:40:083
227579999,0cyclictest28-21ksoftirqd/200:16:572
227579999,0cyclictest28-21ksoftirqd/200:16:562
227579998,1cyclictest28-21ksoftirqd/223:27:072
227579998,1cyclictest28-21ksoftirqd/200:01:552
227579991,7cyclictest11792-21cron22:35:002
227579990,6cyclictest1429-21/usr/sbin/munin23:05:182
227579990,5cyclictest0-21swapper/221:16:322
227489999,0cyclictest9-21ksoftirqd/023:50:160
227489999,0cyclictest9-21ksoftirqd/021:50:160
227489998,1cyclictest9-21ksoftirqd/019:19:590
227489998,1cyclictest9-21ksoftirqd/000:35:000
227489997,1cyclictest9-21ksoftirqd/021:15:150
227489997,1cyclictest9-21ksoftirqd/021:12:260
227489990,8cyclictest0-21swapper/019:10:100
22667290,1sleep30-21swapper/321:19:193
227659986,1cyclictest35-21ksoftirqd/321:00:013
227659986,1cyclictest20817-21cat20:10:163
227659984,2cyclictest693-21runrttasks22:37:573
227659984,2cyclictest15803-21diskmemload22:41:193
227659984,0cyclictest15803-21diskmemload22:13:343
227659980,3cyclictest0-21swapper/322:21:083
227659980,2cyclictest30615-21/usr/sbin/munin21:30:173
227659980,0cyclictest0-21swapper/323:10:173
227579987,1cyclictest28-21ksoftirqd/219:55:102
227579987,1cyclictest250612sleep219:15:012
227579986,1cyclictest61650irq/122-eno122:15:132
227579986,1cyclictest61650irq/122-eno122:05:122
227579983,3cyclictest693-21runrttasks22:48:212
227579983,2cyclictest240-21systemd-journal21:40:552
227579981,5cyclictest28-21ksoftirqd/223:38:012
227579980,7cyclictest0-21swapper/222:25:012
227579980,6cyclictest0-21swapper/223:57:292
227539981,4cyclictest25148-21taskset22:06:021
227539980,5cyclictest0-21swapper/123:00:141
227489988,0cyclictest9-21ksoftirqd/023:45:200
227489988,0cyclictest9-21ksoftirqd/022:25:140
227489987,1cyclictest9-21ksoftirqd/022:30:110
227489987,1cyclictest9-21ksoftirqd/022:00:120
227489987,1cyclictest9-21ksoftirqd/021:20:180
227489987,1cyclictest9-21ksoftirqd/000:25:220
227489986,1cyclictest9-21ksoftirqd/020:29:590
227489983,1cyclictest19340-21munin-run22:00:010
227489980,4cyclictest11338-21/usr/sbin/munin00:05:090
21626280,1sleep10-21swapper/121:16:171
14125280,0sleep00-21swapper/022:35:350
227659975,1cyclictest561-21nscd22:18:183
227659975,1cyclictest35-21ksoftirqd/319:55:003
227659975,1cyclictest24416-21ssh23:35:273
227659975,1cyclictest18123-21ssh21:11:483
227659975,1cyclictest14271-21ssh00:08:583
227659973,1cyclictest12029-21apt-get23:20:123
227659972,2cyclictest240-21systemd-journal22:00:013
227659971,4cyclictest0-21swapper/322:00:113
227659970,4cyclictest32267-21sh23:47:583
227659970,4cyclictest0-21swapper/323:40:153
227659970,3cyclictest25690-21apt-get00:25:113
227659970,1cyclictest5435-21ntp_kernel_pll_23:55:163
227659970,1cyclictest28209-21grep22:55:213
227659970,1cyclictest0-21swapper/322:05:113
227659970,1cyclictest0-21swapper/300:31:103
227579976,1cyclictest61650irq/122-eno123:48:532
227579976,1cyclictest61650irq/122-eno123:20:052
227579976,1cyclictest61650irq/122-eno123:02:382
227579976,1cyclictest61650irq/122-eno122:40:122
227579976,1cyclictest61650irq/122-eno121:30:162
227579976,1cyclictest61650irq/122-eno121:20:292
227579976,1cyclictest61650irq/122-eno121:10:142
227579976,1cyclictest61650irq/122-eno120:45:152
227579975,1cyclictest61650irq/122-eno121:40:012
227579975,1cyclictest26692-21apt-get22:10:122
227579974,2cyclictest583-21in:imuxsock20:39:592
227579973,2cyclictest240-21systemd-journal21:10:012
227579973,1cyclictest0-21swapper/219:30:202
227579971,5cyclictest25307-21kworker/2:222:51:542
227579971,4cyclictest15803-21diskmemload00:26:252
227579970,6cyclictest28995-21ssh21:26:092
227579970,3cyclictest0-21swapper/223:30:192
227539970,6cyclictest0-21swapper/120:25:161
227539970,4cyclictest0-21swapper/123:55:171
227539970,4cyclictest0-21swapper/122:53:011
227539970,3cyclictest0-21swapper/100:32:281
227489977,0cyclictest9-21ksoftirqd/023:30:190
227489977,0cyclictest9-21ksoftirqd/022:40:010
227489976,1cyclictest9-21ksoftirqd/021:25:150
227489976,1cyclictest9-21ksoftirqd/020:02:140
227489976,1cyclictest9-21ksoftirqd/000:15:150
227489976,1cyclictest9-21ksoftirqd/000:15:140
227489975,1cyclictest9-21ksoftirqd/023:35:140
227489975,1cyclictest11150-21ssh21:46:280
227489974,1cyclictest0-21swapper/019:49:380
227489973,1cyclictest23468-21ntp_states20:15:190
227489972,4cyclictest31225-21fschecks_count21:30:160
227489971,5cyclictest733-21sshd20:55:140
227489970,6cyclictest2651-21gltestperf20:40:130
227489970,6cyclictest15803-21diskmemload21:36:190
227489970,6cyclictest11750-21cat21:00:130
227489970,6cyclictest0-21swapper/020:05:160
227489970,4cyclictest2843-21perf19:34:590
227489970,1cyclictest7924-21ssh21:42:260
227489970,1cyclictest539-21ssh22:18:360
227489970,1cyclictest29053-21ssh22:12:130
227489970,1cyclictest22072-21perf20:14:590
227489970,1cyclictest15550-21apt-get23:25:110
18363270,1sleep20-21swapper/221:56:592
8634260,0sleep10-21swapper/121:44:421
706260,4sleep10-21swapper/120:35:211
227659965,1cyclictest8724-21cat00:00:153
227659965,1cyclictest25030-21ssh21:20:253
227659965,1cyclictest10795-21ssh23:17:043
227659965,1cyclictest10434-21ssh22:30:393
227659964,1cyclictest12721-21ssh21:50:133
227659963,1cyclictest240-21systemd-journal22:25:573
227659963,1cyclictest13650irq/124-ahci[0020:24:553
227659962,2cyclictest23244-21/usr/sbin/munin22:50:213
227659962,2cyclictest15803-21diskmemload23:06:403
227659962,0cyclictest15803-21diskmemload00:15:403
227659962,0cyclictest15803-21diskmemload00:15:403
227659961,4cyclictest760-21/usr/sbin/munin23:50:183
227659961,4cyclictest0-21swapper/321:00:103
227659961,3cyclictest15803-21diskmemload00:39:293
227659961,3cyclictest0-21swapper/321:38:333
227659960,3cyclictest15615-21aten2.4-expect23:25:133
227659960,3cyclictest0-21swapper/322:45:143
227659960,3cyclictest0-21swapper/321:25:153
227659960,2cyclictest0-21swapper/300:14:553
227659960,1cyclictest0-21swapper/320:30:203
227659960,1cyclictest0-21swapper/319:45:203
227579966,0cyclictest61650irq/122-eno123:42:462
227579966,0cyclictest61650irq/122-eno123:10:132
227579966,0cyclictest61650irq/122-eno121:50:032
227579966,0cyclictest61650irq/122-eno121:45:012
227579966,0cyclictest61650irq/122-eno120:25:172
227579966,0cyclictest61650irq/122-eno120:20:162
227579966,0cyclictest61650irq/122-eno120:10:222
227579966,0cyclictest61650irq/122-eno120:00:012
227579966,0cyclictest61650irq/122-eno119:13:002
227579966,0cyclictest61650irq/122-eno100:35:152
227579965,1cyclictest61650irq/122-eno122:20:122
227579965,1cyclictest61650irq/122-eno122:00:322
227579965,1cyclictest61650irq/122-eno119:45:002
227579965,1cyclictest61650irq/122-eno100:21:172
227579965,1cyclictest28-21ksoftirqd/219:35:142
227579965,1cyclictest28-21ksoftirqd/200:30:032
227579965,1cyclictest2635-21ssh23:50:362
227579964,1cyclictest61650irq/122-eno100:05:132
227579964,1cyclictest32543-21sshd19:26:142
227579964,1cyclictest29523-21ntpq19:20:172
227579964,1cyclictest28-21ksoftirqd/220:59:232
227579963,1cyclictest16293-21systemctl00:10:202
227579961,1cyclictest0-21swapper/219:50:132
227579960,6cyclictest0-21swapper/221:00:152
227579960,4cyclictest6909-21/usr/sbin/munin19:40:192
227579960,3cyclictest0-21swapper/223:15:132
227539961,1cyclictest0-21swapper/123:53:551
227539960,6cyclictest0-21swapper/123:28:421
227539960,6cyclictest0-21swapper/123:14:471
227539960,6cyclictest0-21swapper/121:14:221
227539960,6cyclictest0-21swapper/121:03:091
227539960,5cyclictest0-21swapper/100:12:291
227539960,4cyclictest0-21swapper/122:22:421
227539960,4cyclictest0-21swapper/121:46:341
227539960,3cyclictest0-21swapper/123:15:121
227539960,3cyclictest0-21swapper/122:56:401
227539960,2cyclictest0-21swapper/123:40:161
227539960,2cyclictest0-21swapper/122:35:111
227539960,1cyclictest0-21swapper/100:25:011
227539960,0cyclictest0-21swapper/123:20:031
227489965,1cyclictest9-21ksoftirqd/023:40:160
227489965,1cyclictest9-21ksoftirqd/019:50:150
227489965,1cyclictest9-21ksoftirqd/019:40:160
227489964,1cyclictest5469-21ssh23:10:140
227489964,1cyclictest14098-21ssh23:21:180
227489963,2cyclictest31106-21grep20:30:190
227489960,6cyclictest0-21swapper/021:05:180
227489960,5cyclictest0-21swapper/000:00:110
227489960,2cyclictest0-21swapper/020:50:120
3743250,0sleep10-21swapper/121:35:281
227659955,0cyclictest1268-21kworker/3:020:18:223
227659955,0cyclictest0-21swapper/320:25:293
227659953,1cyclictest35-21ksoftirqd/319:45:003
227659953,1cyclictest35-21ksoftirqd/319:31:393
227659953,1cyclictest31942-21/usr/sbin/munin20:35:183
227659951,3cyclictest6929-21cstates20:50:143
227659951,2cyclictest22955-21apt-get19:10:113
227659951,1cyclictest693-21runrttasks21:05:383
227659951,1cyclictest3791-21taskset20:42:173
227659951,1cyclictest31504-21grep19:25:173
227659951,1cyclictest26446-21expr19:15:143
227659951,1cyclictest0-21swapper/323:30:163
227659950,5cyclictest0-21swapper/319:35:063
227659950,2cyclictest0-21swapper/300:20:113
227659950,1cyclictest17448-21latency_hist20:05:003
227659950,1cyclictest0-21swapper/323:00:133
227659950,1cyclictest0-21swapper/319:55:123
227579955,0cyclictest61650irq/122-eno120:30:122
227579955,0cyclictest61650irq/122-eno120:15:502
227579955,0cyclictest61650irq/122-eno120:05:162
227579953,1cyclictest61650irq/122-eno120:40:102
227579951,2cyclictest0-21swapper/220:50:112
227539955,0cyclictest21-21ksoftirqd/119:49:151
227539955,0cyclictest0-21swapper/123:45:111
227539955,0cyclictest0-21swapper/123:37:361
227539955,0cyclictest0-21swapper/121:26:011
227539952,2cyclictest0-21swapper/122:49:241
227539951,4cyclictest0-21swapper/120:51:581
227539951,4cyclictest0-21swapper/119:11:121
227539951,3cyclictest0-21swapper/122:10:201
227539951,2cyclictest0-21swapper/122:27:051
227539950,5cyclictest0-21swapper/120:18:221
227539950,5cyclictest0-21swapper/119:44:501
227539950,5cyclictest0-21swapper/119:35:151
227539950,3cyclictest0-21swapper/123:30:221
227539950,2cyclictest0-21swapper/122:40:011
227539950,2cyclictest0-21swapper/122:15:121
227539950,2cyclictest0-21swapper/121:31:211
227539950,2cyclictest0-21swapper/121:20:131
227539950,2cyclictest0-21swapper/100:37:591
227539950,2cyclictest0-21swapper/100:09:231
227539950,0cyclictest0-21swapper/121:50:381
227489954,1cyclictest9-21ksoftirqd/020:20:000
227489950,4cyclictest4245-21/usr/sbin/munin20:45:130
227659942,1cyclictest4262-21aten_r1power_cu20:45:113
227659942,0cyclictest28378-21apt-get19:20:113
227539943,1cyclictest61892sleep120:47:531
227539942,1cyclictest259922sleep119:15:071
227539941,1cyclictest0-21swapper/121:05:121
227539940,4cyclictest0-21swapper/119:33:381
227539940,3cyclictest0-21swapper/120:20:011
227539940,3cyclictest0-21swapper/119:25:171
227539940,3cyclictest0-21swapper/100:16:121
227539940,3cyclictest0-21swapper/100:16:111
227539940,2cyclictest0-21swapper/122:31:261
227539940,2cyclictest0-21swapper/122:00:261
227539940,2cyclictest0-21swapper/100:21:431
227539940,1cyclictest0-21swapper/121:56:221
227539940,1cyclictest0-21swapper/120:10:201
227539940,1cyclictest0-21swapper/100:00:411
227539940,0cyclictest0-21swapper/123:05:121
227539940,0cyclictest0-21swapper/120:55:211
227539931,1cyclictest0-21swapper/120:05:131
227539931,1cyclictest0-21swapper/120:00:111
227539931,1cyclictest0-21swapper/119:50:121
227539931,1cyclictest0-21swapper/119:20:131
227539930,1cyclictest0-21swapper/120:30:091
227539930,1cyclictest0-21swapper/119:55:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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