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2026-08-02 - 03:07
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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack1slot2.osadl.org (updated Sun Aug 02, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
834724435,0sleep20-21swapper/219:25:052
858224334,0sleep10-21swapper/119:27:521
862523228,0sleep30-21swapper/319:28:183
849722918,0sleep00-21swapper/019:26:510
8767991414,0cyclictest24830-21sensors23:59:321
87689998,0cyclictest83050irq/26-0000:00:00:36:122
87679970,0cyclictest14470-21fschecks_time21:44:231
149970,0migration/027137-21kthreadcore20:24:280
87679966,0cyclictest0-21swapper/123:34:251
87669960,0cyclictest0-21swapper/022:51:550
87669960,0cyclictest0-21swapper/021:14:100
339960,0migration/36560-21sh21:57:313
339960,0migration/34741-21timerandwakeup20:29:383
339960,0migration/331516-21sh23:44:333
339960,0migration/328291-21sh23:05:003
339960,0migration/322275-21munin-node00:54:383
339960,0migration/320958-21sh00:36:093
339960,0migration/319807-21sh23:00:043
339960,0migration/314906-21sh00:52:533
339960,0migration/314906-21sh00:52:533
29815060,0irq/29-eth0-tx-27315-21munin-node20:49:370
29815060,0irq/29-eth0-tx-16394-21munin-node20:19:240
29805060,0irq/28-eth0-rx-6314-21runrttasks00:04:313
29805060,0irq/28-eth0-rx-22771-21ssh23:39:353
29805060,0irq/28-eth0-rx-20354-21ssh00:19:203
29805060,0irq/28-eth0-rx-20051-21turbostat21:29:103
29805060,0irq/28-eth0-rx-0-21swapper/322:21:023
149960,0migration/031545-21gltestperf19:44:230
149960,0migration/017234-21kthreadcore23:19:280
87689955,0cyclictest83050irq/26-0000:00:23:53:142
87689955,0cyclictest0-21swapper/223:21:442
87689955,0cyclictest0-21swapper/200:44:402
87679955,0cyclictest0-21swapper/123:19:361
87679955,0cyclictest0-21swapper/123:12:501
87679955,0cyclictest0-21swapper/122:52:291
87679955,0cyclictest0-21swapper/122:27:351
87679955,0cyclictest0-21swapper/122:11:011
87679955,0cyclictest0-21swapper/121:32:141
87679950,0cyclictest0-21swapper/123:30:011
87679950,0cyclictest0-21swapper/100:50:341
87679950,0cyclictest0-21swapper/100:50:341
87669955,0cyclictest0-21swapper/023:43:560
87669955,0cyclictest0-21swapper/023:03:540
87669952,0cyclictest22289-21sadc21:49:100
87669950,0cyclictest0-21swapper/023:16:400
87669950,0cyclictest0-21swapper/021:57:030
87669950,0cyclictest0-21swapper/021:44:070
339950,0migration/39280-21aten_r1power_fr20:14:213
339950,0migration/38924-21kthreadcore23:14:283
339950,0migration/37564-21aten_r1power_vo21:59:213
339950,0migration/36415-21munin-node21:39:273
339950,0migration/35955-21taskset00:46:423
339950,0migration/33934-21kthreadcore20:54:253
339950,0migration/330518-21taskset21:11:393
339950,0migration/330277-21taskset21:52:263
339950,0migration/328392-21kthreadcore23:24:303
339950,0migration/327222-21taskset21:30:513
339950,0migration/320244-21fschecks_count22:44:253
339950,0migration/319477-21taskset19:56:563
339950,0migration/319242-21fschecks_time23:59:243
339950,0migration/318521-21kthreadcore22:04:293
339950,0migration/318291-21kthreadcore21:44:273
339950,0migration/318105-21cpuspeed_turbos22:24:233
339950,0migration/317391-21idleruntime20:19:243
339950,0migration/316932-21munin-node21:04:243
339950,0migration/312693-21kthreadcore20:59:303
339950,0migration/31177-21kthreadcore21:14:273
339950,0migration/310450-21sh22:38:053
329950,0watchdog/38845-21perl23:34:253
329950,0watchdog/329428-21memory20:24:293
329950,0watchdog/318637-21cut19:34:293
329950,0watchdog/31302-21perl22:14:253
329950,0watchdog/310819-21runrttasks00:11:583
29815050,0irq/29-eth0-tx-8292-21grep21:39:282
29815050,0irq/29-eth0-tx-3985-21munin-node23:09:332
29815050,0irq/29-eth0-tx-22950-21kthreadcore22:44:292
29815050,0irq/29-eth0-tx-22278-21munin-node00:39:332
29815050,0irq/29-eth0-tx-21809-21df23:04:232
29815050,0irq/29-eth0-tx-21574-21irqcore21:29:270
29815050,0irq/29-eth0-tx-15774-21ssh23:37:262
29815050,0irq/29-eth0-tx-13660-21ssh23:16:482
29815050,0irq/29-eth0-tx-12972-21munin-node22:59:312
29815050,0irq/29-eth0-tx-0-21swapper/223:59:222
29815050,0irq/29-eth0-tx-0-21swapper/222:40:102
29815050,0irq/29-eth0-tx-0-21swapper/222:23:112
29815050,0irq/29-eth0-tx-0-21swapper/222:00:092
29815050,0irq/29-eth0-tx-0-21swapper/221:47:392
29815050,0irq/29-eth0-tx-0-21swapper/221:31:442
29815050,0irq/29-eth0-tx-0-21swapper/020:34:330
29815050,0irq/29-eth0-tx-0-21swapper/020:33:590
29805050,0irq/28-eth0-rx-2869-21switchtime21:34:373
29805050,0irq/28-eth0-rx-22930-21fschecks_time00:39:243
29805050,0irq/28-eth0-rx-18167-21ssh22:40:383
29805050,0irq/28-eth0-rx-0-21swapper/323:58:593
29805050,0irq/28-eth0-rx-0-21swapper/323:29:203
29805050,0irq/28-eth0-rx-0-21swapper/322:29:383
29805050,0irq/28-eth0-rx-0-21swapper/322:09:273
29805050,0irq/28-eth0-rx-0-21swapper/320:44:273
259950,0migration/27060-21sh00:49:152
259950,0migration/27060-21sh00:49:152
259950,0migration/232658-21sendmail_mailst22:29:322
259950,0migration/212189-21cpuspeed_turbos00:14:252
259950,0migration/210034-21sh22:36:532
249950,0watchdog/229031-21cut00:04:302
249950,0watchdog/224605-21ssh22:24:532
19150,0ktimersoftd/10-21swapper/121:59:401
179950,0migration/1513-21latency00:04:311
179950,0migration/121365-21munin-node00:19:281
179950,0migration/121255-21kthreadcore00:54:301
179950,0migration/120824-21taskset00:35:461
179950,0migration/11804-21kthreadcore00:44:281
179950,0migration/117466-21fschecks_time23:39:271
149950,0migration/07464-21kthreadcore22:54:300
149950,0migration/07017-21latency_hist00:49:110
149950,0migration/07017-21latency_hist00:49:110
149950,0migration/06767-21irqcore19:49:240
149950,0migration/06432-21kthreadcore00:09:280
149950,0migration/0549-21aten_r1power_en22:14:230
149950,0migration/03227-21fschecks_time22:34:240
149950,0migration/030731-21kthreadcore22:29:290
149950,0migration/030284-21taskset19:43:090
149950,0migration/029834-21kthreadcore20:04:270
149950,0migration/029009-21sh00:39:430
149950,0migration/028767-21kthreadcore23:44:280
149950,0migration/026862-21timerandwakeup00:19:400
149950,0migration/025427-21kthreadcore21:09:280
149950,0migration/025347-21kthreadcore21:49:250
149950,0migration/02434-21kthreadcore23:09:290
149950,0migration/022586-21kthreadcore20:44:270
149950,0migration/022567-21kthreadcore23:59:280
149950,0migration/019693-21kthreadcore22:24:280
149950,0migration/01848-21latency_hist20:09:090
149950,0migration/016335-21kthreadcore00:34:290
149950,0migration/016211-21kthreadcore20:39:280
149950,0migration/015737-21taskset19:31:250
149950,0migration/012340-21kthreadcore23:54:290
87689944,0cyclictest83050irq/26-0000:00:00:30:482
87689943,0cyclictest3571-21lldpd21:34:142
87689943,0cyclictest3524-21snmpd23:29:172
87689943,0cyclictest3524-21snmpd22:54:172
87689943,0cyclictest3524-21snmpd21:19:162
87689943,0cyclictest3524-21snmpd21:13:162
87689943,0cyclictest3524-21snmpd20:59:162
87689943,0cyclictest3524-21snmpd20:49:312
87689943,0cyclictest3524-21snmpd20:47:312
87689943,0cyclictest3524-21snmpd20:34:162
87689943,0cyclictest3524-21snmpd20:15:162
87689943,0cyclictest31838-21awk20:29:282
87689943,0cyclictest3005-21awk20:09:262
87689943,0cyclictest17867-21awk23:39:302
87689943,0cyclictest1758-21awk22:14:282
87689943,0cyclictest14130-21awk21:24:262
87689943,0cyclictest13767-21awk19:54:252
87679943,0cyclictest3664-21awk22:34:261
87679943,0cyclictest3571-21lldpd23:24:171
87679943,0cyclictest3571-21lldpd22:57:161
87679943,0cyclictest3571-21lldpd22:23:141
87679943,0cyclictest3571-21lldpd22:05:441
87679943,0cyclictest3571-21lldpd21:41:441
87679943,0cyclictest3571-21lldpd20:18:141
87679943,0cyclictest3571-21lldpd00:31:461
87679943,0cyclictest3571-21lldpd00:11:461
87679943,0cyclictest24689-21awk20:24:251
87679943,0cyclictest17459-21awk20:19:251
87679943,0cyclictest11078-21awk23:54:271
87669944,0cyclictest0-21swapper/023:31:290
87669943,0cyclictest9150-21sadc20:59:100
87669943,0cyclictest8599-21awk21:59:250
87669943,0cyclictest4893-21munin-run21:39:100
87669943,0cyclictest3571-21lldpd23:27:160
87669943,0cyclictest3571-21lldpd22:10:140
87669943,0cyclictest3571-21lldpd21:07:440
87669943,0cyclictest3571-21lldpd19:38:140
87669943,0cyclictest3571-21lldpd00:30:160
87669943,0cyclictest30128-21awk00:24:310
87669943,0cyclictest13752-21awk19:54:250
339940,0migration/37806-21kthreadcore20:34:303
339940,0migration/35842-21kthreadcore20:09:293
339940,0migration/311832-21diskmemload00:14:173
339940,0migration/311032-21kthreadcore19:49:263
329940,0watchdog/30-21swapper/300:29:263
29815040,0irq/29-eth0-tx-0-21swapper/223:44:232
29815040,0irq/29-eth0-tx-0-21swapper/223:25:252
29815040,0irq/29-eth0-tx-0-21swapper/222:49:122
29815040,0irq/29-eth0-tx-0-21swapper/222:09:282
29815040,0irq/29-eth0-tx-0-21swapper/221:49:372
29815040,0irq/29-eth0-tx-0-21swapper/200:54:152
29815040,0irq/29-eth0-tx-0-21swapper/200:24:322
29815040,0irq/29-eth0-tx-0-21swapper/200:19:322
29815040,0irq/29-eth0-tx-0-21swapper/200:09:172
29805040,0irq/28-eth0-rx-2920-21kthreadcore23:09:293
29805040,0irq/28-eth0-rx-11850-21ntpq21:19:303
29805040,0irq/28-eth0-rx-0-21swapper/323:49:293
29805040,0irq/28-eth0-rx-0-21swapper/323:19:243
29805040,0irq/28-eth0-rx-0-21swapper/322:55:033
29805040,0irq/28-eth0-rx-0-21swapper/322:49:133
29805040,0irq/28-eth0-rx-0-21swapper/319:39:223
29805040,0irq/28-eth0-rx-0-21swapper/300:24:333
259940,0migration/29044-21kthreadcore19:49:262
259940,0migration/2695-21kthreadcore19:44:272
259940,0migration/26190-21kthreadcore20:54:262
259940,0migration/231300-21aten_r1power_po21:54:232
259940,0migration/23043-21kthreadcore21:14:282
259940,0migration/226928-21latency_hist20:04:092
259940,0migration/220512-21kthreadcore19:34:292
259940,0migration/219420-21kthreadcore20:19:282
259940,0migration/218433-21kthreadcore22:04:292
249940,0watchdog/26314-21runrttasks20:28:372
249940,0watchdog/229624-21python19:39:332
249940,0watchdog/216721-21ssh23:54:462
179940,0migration/17696-21kthreadcore19:49:251
179940,0migration/17654-21kthreadcore20:34:301
179940,0migration/17366-21uptime22:14:371
179940,0migration/16847-21kthreadcore20:54:261
179940,0migration/131504-21fschecks_time19:44:231
179940,0migration/131449-21kthreadcore20:04:271
179940,0migration/125765-21fschecks_count23:44:231
179940,0migration/122958-21fschecks_time00:39:251
179940,0migration/120047-21aten_r1power_po19:59:231
179940,0migration/116989-21kthreadcore22:59:281
179940,0migration/115750-21kthreadcore19:54:271
179940,0migration/114511-21kthreadcore20:39:271
169940,0watchdog/15294-21kthreadcore23:49:291
169940,0watchdog/14581-21netstat21:14:291
169940,0watchdog/14422-21ssh21:37:571
169940,0watchdog/132030-21fschecks_time21:54:251
169940,0watchdog/124204-21cut21:49:251
169940,0watchdog/121435-21ssh23:04:131
169940,0watchdog/120050-21diskmemload00:24:221
169940,0watchdog/119653-21ssh22:44:211
169940,0watchdog/117743-21cut21:24:291
169940,0watchdog/114150-21ssh23:18:131
169940,0watchdog/10-21swapper/121:04:291
169940,0watchdog/10-21swapper/120:09:291
169940,0watchdog/10-21swapper/119:34:291
169940,0watchdog/10-21swapper/100:14:261
149940,0migration/09064-21kthreadcore21:19:270
149940,0migration/030990-21cpu00:44:220
149940,0migration/022822-21runrttasks00:55:540
149940,0migration/020594-21fschecks_time19:59:250
149940,0migration/015713-21timerandwakeup22:19:360
149940,0migration/015643-21sh23:37:030
149940,0migration/014400-21kthreadcore00:14:300
149940,0migration/01207-21latency_hist23:49:110
87689932,0cyclictest3524-21snmpd21:04:162
87689932,0cyclictest3524-21snmpd20:39:162
87689930,0cyclictest9747-21perl19:29:252
87679933,0cyclictest28443-21awk20:49:271
87679932,0cyclictest9037-21hostname19:29:231
87679932,0cyclictest3571-21lldpd20:59:441
87679932,0cyclictest3571-21lldpd20:30:141
87679932,0cyclictest3524-21snmpd19:39:151
87679932,0cyclictest21244-21awk20:44:251
87679930,0cyclictest11435-21df22:39:221
87679930,0cyclictest0-21swapper/122:29:241
87669933,0cyclictest12088-21kworker/0:022:44:170
87669933,0cyclictest11731-21kworker/0:222:04:110
87669933,0cyclictest11731-21kworker/0:221:24:230
87669933,0cyclictest11731-21kworker/0:220:59:110
87669933,0cyclictest11731-21kworker/0:220:14:230
87669932,0cyclictest3571-21lldpd22:39:160
87669932,0cyclictest3524-21snmpd23:04:280
87669932,0cyclictest3524-21snmpd00:04:390
329930,0watchdog/30-21swapper/320:04:293
329930,0watchdog/30-21swapper/319:59:333
329930,0watchdog/30-21swapper/319:29:333
29805030,0irq/28-eth0-rx-0-21swapper/320:49:223
29805030,0irq/28-eth0-rx-0-21swapper/320:43:383
29805030,0irq/28-eth0-rx-0-21swapper/319:44:213
259930,0migration/228012-21gltestperf20:04:232
169930,0watchdog/10-21swapper/121:19:211
169930,0watchdog/10-21swapper/121:09:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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