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2026-08-29 - 00:23
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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 highest latencies:
System rack1slot2.osadl.org (updated Fri Aug 28, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2856424635,0sleep00-21swapper/007:29:090
2863724232,0sleep20-21swapper/207:29:592
2854723828,0sleep30-21swapper/307:28:563
2228423425,0sleep10-21swapper/107:26:331
329970,0watchdog/3524-21sh09:45:153
339960,0migration/327220-21aten_r1power_po12:51:323
339960,0migration/323581-21sh12:27:293
339960,0migration/317871-21sh11:27:093
339960,0migration/315230-21sh12:22:573
339960,0migration/314082-21sh12:05:103
339960,0migration/312526-21sh10:27:523
29805060,0irq/28-eth0-rx-9699-21ntp_offset10:06:413
29805060,0irq/28-eth0-rx-23586-21munin-node10:36:383
29805060,0irq/28-eth0-rx-17750-21sed09:11:473
288199960,0cyclictest0-21swapper/109:34:191
288189960,0cyclictest0-21swapper/009:36:320
149960,0migration/05772-21sh12:00:540
149960,0migration/032693-21sh11:01:210
149960,0migration/024969-21sh11:13:220
149960,0migration/021347-21sh10:33:440
339950,0migration/37931-21aten_r1power_fr08:46:333
339950,0migration/36916-21kthreadcore11:21:383
339950,0migration/35104-21idleruntime08:21:353
339950,0migration/34173-21kthreadcore07:56:383
339950,0migration/33927-21fschecks_count12:56:333
339950,0migration/33289-21kthreadcore08:41:373
339950,0migration/33271-21switchtime09:01:453
339950,0migration/331751-21fschecks_time10:41:343
339950,0migration/33015-21timerandwakeup07:31:443
339950,0migration/329289-21kthreadcore08:36:383
339950,0migration/326750-21kthreadcore12:11:413
339950,0migration/325101-21taskset08:31:483
339950,0migration/317000-21kthreadcore08:51:363
339950,0migration/315303-21munin-node11:06:413
339950,0migration/312368-21cpuspeed_turbos10:11:323
339950,0migration/311161-21taskset09:10:203
329950,0watchdog/34275-21tr12:16:403
329950,0watchdog/330868-21perl11:56:363
329950,0watchdog/321814-21kthreadcore11:11:403
329950,0watchdog/313940-21unixbench_multi10:46:483
329950,0watchdog/30-21swapper/309:36:393
29815050,0irq/29-eth0-tx-3932-21munin-node07:36:450
29815050,0irq/29-eth0-tx-27539-21cut12:11:412
29815050,0irq/29-eth0-tx-25536-21munin-node07:51:390
29815050,0irq/29-eth0-tx-25300-21perl10:56:332
29815050,0irq/29-eth0-tx-21993-21munin-node08:11:430
29815050,0irq/29-eth0-tx-16426-21munin-node09:36:432
29815050,0irq/29-eth0-tx-0-21swapper/212:41:232
29815050,0irq/29-eth0-tx-0-21swapper/212:39:512
29815050,0irq/29-eth0-tx-0-21swapper/212:23:552
29815050,0irq/29-eth0-tx-0-21swapper/212:05:222
29815050,0irq/29-eth0-tx-0-21swapper/008:58:430
29815050,0irq/29-eth0-tx-0-21swapper/008:41:430
29805050,0irq/28-eth0-rx-8681-21ssh11:05:403
29805050,0irq/28-eth0-rx-31762-21taskset10:58:363
29805050,0irq/28-eth0-rx-17588-21ssh09:53:343
29805050,0irq/28-eth0-rx-16313-21irqstats12:06:353
29805050,0irq/28-eth0-rx-0-21swapper/312:31:373
29805050,0irq/28-eth0-rx-0-21swapper/310:22:323
29805050,0irq/28-eth0-rx-0-21swapper/310:02:503
29805050,0irq/28-eth0-rx-0-21swapper/309:51:213
288209955,0cyclictest0-21swapper/211:53:082
288209955,0cyclictest0-21swapper/211:53:082
288209950,0cyclictest0-21swapper/212:53:412
288209950,0cyclictest0-21swapper/212:48:472
288209950,0cyclictest0-21swapper/211:50:562
288209950,0cyclictest0-21swapper/210:12:242
288199955,0cyclictest0-21swapper/111:43:071
288199955,0cyclictest0-21swapper/111:30:211
288199955,0cyclictest0-21swapper/109:49:551
288199950,0cyclictest0-21swapper/112:37:401
288199950,0cyclictest0-21swapper/109:52:551
288189953,0cyclictest29092-21kworker/0:010:42:360
288189953,0cyclictest20854-21kworker/0:210:53:420
288189953,0cyclictest20854-21kworker/0:210:25:080
288189953,0cyclictest20854-21kworker/0:210:11:380
288189953,0cyclictest20854-21kworker/0:210:08:080
288189953,0cyclictest1547-21kworker/0:112:40:080
288189953,0cyclictest1547-21kworker/0:112:27:440
288189953,0cyclictest1547-21kworker/0:112:25:180
288189953,0cyclictest1547-21kworker/0:111:42:480
288189953,0cyclictest1547-21kworker/0:111:38:140
288189953,0cyclictest1547-21kworker/0:111:03:420
27150,0ktimersoftd/20-21swapper/210:28:572
259950,0migration/2752-21kthreadcore09:01:382
259950,0migration/231518-21kthreadcore11:16:382
259950,0migration/228074-21sh11:36:222
259950,0migration/223966-21kthreadcore08:11:372
259950,0migration/216877-21kthreadcore10:31:352
259950,0migration/21390-21timerandwakeup10:01:442
259950,0migration/21089-21kthreadcore08:16:372
249950,0watchdog/213909-21kthreadcore11:26:402
179950,0migration/1630-21kthreadcore10:21:381
179950,0migration/14943-21idleruntime07:36:351
179950,0migration/128140-21aten_r1power_cu11:36:331
179950,0migration/127904-21missed_timers08:11:391
179950,0migration/126807-21kthreadcore11:51:391
179950,0migration/126807-21kthreadcore11:51:391
179950,0migration/123113-21sh10:53:211
179950,0migration/118549-21kthreadcore09:36:381
179950,0migration/115067-21kthreadcore11:46:371
169950,0watchdog/1747-21telnet09:26:311
149950,0migration/08500-21kthreadcore10:26:380
149950,0migration/06460-21taskset12:17:290
149950,0migration/04215-21kthreadcore11:21:370
149950,0migration/032330-21kthreadcore10:01:370
149950,0migration/031186-21munin-node12:31:390
149950,0migration/031094-21kthreadcore12:51:390
149950,0migration/029076-21aten_r1power_en07:31:300
149950,0migration/024314-21kthreadcore10:36:400
149950,0migration/024273-21kthreadcore11:51:380
149950,0migration/024273-21kthreadcore11:51:380
149950,0migration/023726-21kthreadcore09:56:360
149950,0migration/023541-21kthreadcore12:46:390
149950,0migration/023473-21kthreadcore07:46:380
149950,0migration/023371-21kthreadcore09:16:380
149950,0migration/019517-21sh11:31:220
149950,0migration/019177-21kthreadcore08:06:380
149950,0migration/017155-21ntp_offset11:26:420
149950,0migration/016186-21missed_timers09:51:370
149950,0migration/015090-21kthreadcore09:11:400
149950,0migration/013833-21ksmtuned12:04:260
149950,0migration/013471-21missed_timers08:01:380
149950,0migration/013069-21kthreadcore10:46:410
8305040,0irq/26-0000:00:28868-21crond10:21:212
8305040,0irq/26-0000:00:0-21swapper/212:31:372
339940,0migration/327785-21irqrtprio11:16:363
339940,0migration/323828-21kthreadcore09:16:383
339940,0migration/320045-21irqcore09:56:343
329940,0watchdog/329370-21kthreadcore09:21:393
329940,0watchdog/30-21swapper/312:41:403
329940,0watchdog/30-21swapper/312:36:243
329940,0watchdog/30-21swapper/310:31:323
329940,0watchdog/30-21swapper/310:16:323
329940,0watchdog/30-21swapper/309:00:313
29815040,0irq/29-eth0-tx-7729-21diskmemload10:48:212
29815040,0irq/29-eth0-tx-0-21swapper/212:26:422
29815040,0irq/29-eth0-tx-0-21swapper/211:56:522
29815040,0irq/29-eth0-tx-0-21swapper/211:41:252
29815040,0irq/29-eth0-tx-0-21swapper/211:22:152
29815040,0irq/29-eth0-tx-0-21swapper/210:51:562
29815040,0irq/29-eth0-tx-0-21swapper/210:16:242
29815040,0irq/29-eth0-tx-0-21swapper/210:06:222
29815040,0irq/29-eth0-tx-0-21swapper/209:46:342
29815040,0irq/29-eth0-tx-0-21swapper/008:51:330
29815040,0irq/29-eth0-tx-0-21swapper/008:36:320
29815040,0irq/29-eth0-tx-0-21swapper/008:16:400
29815040,0irq/29-eth0-tx-0-21swapper/007:56:460
29805040,0irq/28-eth0-rx-9190-21kthreadcore08:01:363
29805040,0irq/28-eth0-rx-0-21swapper/312:46:253
29805040,0irq/28-eth0-rx-0-21swapper/311:55:393
29805040,0irq/28-eth0-rx-0-21swapper/311:55:393
29805040,0irq/28-eth0-rx-0-21swapper/311:47:103
29805040,0irq/28-eth0-rx-0-21swapper/311:42:403
29805040,0irq/28-eth0-rx-0-21swapper/311:36:343
29805040,0irq/28-eth0-rx-0-21swapper/311:32:433
29805040,0irq/28-eth0-rx-0-21swapper/310:51:283
29805040,0irq/28-eth0-rx-0-21swapper/309:33:253
29805040,0irq/28-eth0-rx-0-21swapper/309:26:373
29805040,0irq/28-eth0-rx-0-21swapper/307:51:373
288209944,0cyclictest0-21swapper/209:24:282
288209943,0cyclictest5064-21awk07:36:362
288209943,0cyclictest3524-21snmpd10:37:422
288209943,0cyclictest3524-21snmpd09:17:112
288209943,0cyclictest3524-21snmpd08:57:412
288209943,0cyclictest3524-21snmpd08:26:262
288209943,0cyclictest3250-21irqbalance11:31:272
288209943,0cyclictest3250-21irqbalance08:47:072
288209943,0cyclictest3250-21irqbalance07:43:162
288209943,0cyclictest26860-21awk08:36:362
288209943,0cyclictest19663-21awk08:31:362
288209943,0cyclictest15878-21awk12:06:342
288209943,0cyclictest10244-21awk11:06:362
288199944,0cyclictest0-21swapper/112:57:131
288199944,0cyclictest0-21swapper/110:40:221
288199943,0cyclictest8797-21awk08:01:351
288199943,0cyclictest3524-21snmpd12:53:281
288199943,0cyclictest3524-21snmpd12:34:431
288199943,0cyclictest3524-21snmpd12:29:431
288199943,0cyclictest3524-21snmpd10:09:261
288199943,0cyclictest3524-21snmpd09:45:411
288199943,0cyclictest3524-21snmpd08:06:261
288199943,0cyclictest3524-21snmpd07:55:411
288199943,0cyclictest3524-21snmpd07:50:111
288199943,0cyclictest3250-21irqbalance11:11:371
288199943,0cyclictest3250-21irqbalance10:16:271
288199943,0cyclictest3250-21irqbalance09:22:171
288199943,0cyclictest3250-21irqbalance09:08:171
288199943,0cyclictest3250-21irqbalance08:36:271
288199943,0cyclictest3250-21irqbalance08:32:271
288199943,0cyclictest3250-21irqbalance08:27:571
288199943,0cyclictest3250-21irqbalance08:23:071
288199943,0cyclictest3250-21irqbalance08:17:371
288199943,0cyclictest19715-21awk12:46:371
288199943,0cyclictest1732-21awk11:01:371
288199943,0cyclictest12624-21awk09:11:381
288199940,0cyclictest23952-21fschecks_time12:11:371
288189943,0cyclictest3524-21snmpd08:24:560
288189943,0cyclictest2410-21awk09:46:350
288189943,0cyclictest15821-21awk12:06:330
288189942,0cyclictest20854-21kworker/0:210:16:360
288189942,0cyclictest20854-21kworker/0:209:42:380
288189942,0cyclictest1547-21kworker/0:112:57:180
288189942,0cyclictest1547-21kworker/0:111:17:440
288189942,0cyclictest1547-21kworker/0:111:06:480
259940,0migration/28562-21fschecks_count09:31:342
259940,0migration/25073-21kthreadcore08:41:382
259940,0migration/232064-21hwlatdetect10:41:362
259940,0migration/23188-21latency_hist12:56:212
259940,0migration/226517-21irqrtprio09:41:362
259940,0migration/217619-21latency_hist11:11:212
259940,0migration/217115-21kthreadcore08:51:362
259940,0migration/214944-21aten2.4-expect08:06:322
259940,0migration/211691-21irqrtprio09:51:352
249940,0watchdog/24274-21cut12:16:402
249940,0watchdog/24191-21kthreadcore11:01:402
249940,0watchdog/214379-21kthreadcore09:11:392
249940,0watchdog/20-21swapper/209:56:362
249940,0watchdog/20-21swapper/207:31:312
179940,0migration/17038-21kthreadcore10:26:381
179940,0migration/13735-21taskset09:03:101
179940,0migration/131804-21kthreadcore11:16:381
179940,0migration/129172-21kthreadcore10:56:381
179940,0migration/12910-21kthreadcore12:16:391
179940,0migration/122944-21fschecks_time08:56:341
179940,0migration/122190-21taskset12:09:011
179940,0migration/120424-21kthreadcore09:16:371
179940,0migration/119643-21sh11:31:321
179940,0migration/116074-21kthreadcore10:11:381
179940,0migration/112504-21irqcore07:41:371
169940,0watchdog/19312-21ssh11:22:001
169940,0watchdog/19190-21munin-node11:06:361
169940,0watchdog/12667-21ntp_states07:31:391
169940,0watchdog/115182-21cpu08:51:311
169940,0watchdog/114067-21memory12:21:401
169940,0watchdog/113119-21ssh12:02:201
169940,0watchdog/10-21swapper/112:41:401
169940,0watchdog/10-21swapper/111:56:401
169940,0watchdog/10-21swapper/110:46:481
169940,0watchdog/10-21swapper/110:31:321
169940,0watchdog/10-21swapper/109:56:361
149940,0migration/021057-21kthreadcore08:31:370
149940,0migration/015675-21kthreadcore11:46:370
149940,0migration/013435-21kthreadcore12:41:390
149940,0migration/013355-21kthreadcore09:31:390
8305030,0irq/26-0000:00:0-21swapper/308:11:203
339930,0migration/317559-21timerwakeupswit07:41:453
329930,0watchdog/30-21swapper/308:26:313
329930,0watchdog/30-21swapper/308:17:233
29815030,0irq/29-eth0-tx-0-21swapper/008:46:410
29815030,0irq/29-eth0-tx-0-21swapper/008:26:320
29805030,0irq/28-eth0-rx-0-21swapper/308:06:323
29805030,0irq/28-eth0-rx-0-21swapper/307:47:413
29805030,0irq/28-eth0-rx-0-21swapper/307:37:523
288209932,0cyclictest27603-21cut07:51:372
288209932,0cyclictest10317-21sensors08:21:412
288209930,0cyclictest596-21df07:56:322
288209930,0cyclictest5810-21irqstats09:06:382
288209930,0cyclictest3155-21grep09:26:372
288209930,0cyclictest20237-21kthreadcore07:46:372
288199932,0cyclictest2544-21cut10:41:391
288189933,0cyclictest20854-21kworker/0:209:26:300
288189933,0cyclictest20854-21kworker/0:209:21:320
288189933,0cyclictest20854-21kworker/0:209:06:280
288189933,0cyclictest20854-21kworker/0:209:01:260
288189933,0cyclictest20854-21kworker/0:207:41:250
288189933,0cyclictest1547-21kworker/0:112:11:260
259930,0migration/29329-21kthreadcore08:01:362
169930,0watchdog/10-21swapper/110:02:081
169930,0watchdog/10-21swapper/108:46:351
169930,0watchdog/10-21swapper/107:56:231
169920,0watchdog/10-21swapper/108:41:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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