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2026-03-11 - 11:40
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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 Wed Mar 11, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1027824331,0sleep00-21swapper/019:13:330
1046724233,0sleep10-21swapper/119:15:421
337523728,0sleep30-21swapper/319:12:203
1023323526,0sleep20-21swapper/219:12:592
106729970,0cyclictest0-21swapper/122:19:311
339960,0migration/3479-21sh00:10:073
339960,0migration/326140-21sh23:09:303
339960,0migration/319873-21sh22:10:153
339960,0migration/319304-21sh00:37:513
29805060,0irq/28-eth0-rx-8552-21tr22:22:383
149960,0migration/026576-21munin-node20:12:360
149960,0migration/01557-21sh00:12:240
149960,0migration/010368-21switchtime00:32:450
106729960,0cyclictest0-21swapper/122:31:021
8305050,0irq/26-0000:00:3368-21perf22:02:202
8305050,0irq/26-0000:00:28869-21sed19:52:192
8305050,0irq/26-0000:00:25436-21latency_hist20:57:192
8305050,0irq/26-0000:00:0-21swapper/200:17:212
4150,0ktimersoftd/00-21swapper/000:44:240
339950,0migration/39506-21kthreadcore20:42:383
339950,0migration/36857-21taskset23:54:433
339950,0migration/33245-21munin-node20:37:463
339950,0migration/32693-21munin-node22:57:383
339950,0migration/325610-21kthreadcore22:12:373
339950,0migration/325411-21taskset20:57:093
339950,0migration/323571-21kthreadcore23:27:373
339950,0migration/323187-21taskset23:47:273
339950,0migration/318559-21kthreadcore22:47:363
339950,0migration/315635-21kthreadcore20:02:373
339950,0migration/310229-21munin-node22:02:453
329950,0watchdog/39142-21ssh00:14:393
329950,0watchdog/36197-21cpuspeed_turbos23:37:313
329950,0watchdog/36106-21kthreadcore21:02:393
329950,0watchdog/332062-21sh22:53:033
329950,0watchdog/329340-21kthreadcore20:12:393
329950,0watchdog/327593-21munin-node00:27:433
329950,0watchdog/321327-21taskset19:44:343
329950,0watchdog/319975-21grep21:52:353
329950,0watchdog/315858-21cut20:47:393
329950,0watchdog/30-21swapper/323:02:393
329950,0watchdog/30-21swapper/300:32:353
29815050,0irq/29-eth0-tx-7419-21munin-node21:27:392
29815050,0irq/29-eth0-tx-4626-21fschecks_time23:17:342
29815050,0irq/29-eth0-tx-29971-21tr21:37:372
29815050,0irq/29-eth0-tx-28200-21ssh00:43:422
29815050,0irq/29-eth0-tx-28143-21ssh22:14:262
29815050,0irq/29-eth0-tx-24662-21crond21:37:202
29815050,0irq/29-eth0-tx-21921-21diskmemload23:38:112
29815050,0irq/29-eth0-tx-21031-21munin-node23:27:402
29815050,0irq/29-eth0-tx-18159-21kthreadcore23:42:392
29815050,0irq/29-eth0-tx-13350-21ssh22:25:062
29815050,0irq/29-eth0-tx-12251-21munin-node22:07:452
29815050,0irq/29-eth0-tx-0-21swapper/223:52:332
29815050,0irq/29-eth0-tx-0-21swapper/223:36:412
29815050,0irq/29-eth0-tx-0-21swapper/222:53:082
29815050,0irq/29-eth0-tx-0-21swapper/222:47:502
29815050,0irq/29-eth0-tx-0-21swapper/222:31:092
29815050,0irq/29-eth0-tx-0-21swapper/222:03:032
29815050,0irq/29-eth0-tx-0-21swapper/221:20:072
29815050,0irq/29-eth0-tx-0-21swapper/200:29:222
29815050,0irq/29-eth0-tx-0-21swapper/200:12:432
29815050,0irq/29-eth0-tx-0-21swapper/020:22:360
29805050,0irq/28-eth0-rx-7849-21df21:27:313
29805050,0irq/28-eth0-rx-5134-21cut23:17:373
29805050,0irq/28-eth0-rx-29742-21basename23:32:313
29805050,0irq/28-eth0-rx-25796-21sh00:23:053
29805050,0irq/28-eth0-rx-19829-21kthreadcore21:32:373
29805050,0irq/28-eth0-rx-16531-21munin-node00:17:413
29805050,0irq/28-eth0-rx-0-21swapper/323:22:353
29805050,0irq/28-eth0-rx-0-21swapper/323:15:553
29805050,0irq/28-eth0-rx-0-21swapper/322:42:323
29805050,0irq/28-eth0-rx-0-21swapper/322:33:093
29805050,0irq/28-eth0-rx-0-21swapper/322:29:203
29805050,0irq/28-eth0-rx-0-21swapper/321:57:333
29805050,0irq/28-eth0-rx-0-21swapper/321:47:313
29805050,0irq/28-eth0-rx-0-21swapper/321:22:353
29805050,0irq/28-eth0-rx-0-21swapper/321:20:333
29805050,0irq/28-eth0-rx-0-21swapper/300:42:403
29805050,0irq/28-eth0-rx-0-21swapper/300:05:113
29805050,0irq/28-eth0-rx-0-21swapper/300:01:333
29805050,0irq/28-eth0-rx-0-21swapper/300:01:333
27150,0ktimersoftd/20-21swapper/200:25:392
259950,0migration/28084-21fschecks_count20:22:342
259950,0migration/26393-21ntp_offset20:17:402
259950,0migration/25733-21switchtime22:37:442
259950,0migration/25115-21unixbench-2d21:22:472
259950,0migration/228311-21kthreadcore20:57:382
259950,0migration/219097-21munin-node23:22:462
259950,0migration/214919-21aten_r1power_po20:27:322
259950,0migration/210255-21kthreadcore23:57:372
259950,0migration/210255-21kthreadcore23:57:372
249950,0watchdog/26107-21kthreadcore21:02:392
249950,0watchdog/22310-21perl22:57:352
179950,0migration/114746-21unixbench_singl23:57:451
179950,0migration/114746-21unixbench_singl23:57:451
179950,0migration/113472-21fschecks_time00:37:341
169950,0watchdog/15906-21kthreadcore20:17:391
149950,0migration/09904-21kthreadcore21:07:350
149950,0migration/09850-21munin-node19:57:390
149950,0migration/0955-21kthreadcore19:52:370
149950,0migration/06080-21kthreadcore20:17:390
149950,0migration/0597-21irqcore22:37:360
149950,0migration/05910-21kthreadcore21:42:380
149950,0migration/05518-21kthreadcore19:32:370
149950,0migration/05470-21kthreadcore23:17:370
149950,0migration/05297-21kthreadcore21:02:390
149950,0migration/04039-21latency_hist20:42:190
149950,0migration/03153-21kthreadcore22:57:400
149950,0migration/031370-21switchtime21:37:440
149950,0migration/030746-21kthreadcore21:57:380
149950,0migration/030705-21latency_hist21:22:200
149950,0migration/030616-21kthreadcore00:07:400
149950,0migration/030238-21fschecks_count23:32:340
149950,0migration/028817-21kthreadcore20:57:380
149950,0migration/026877-21kthreadcore19:27:370
149950,0migration/023993-21kthreadcore20:07:380
149950,0migration/023543-21kthreadcore19:47:370
149950,0migration/021867-21sh22:29:520
149950,0migration/021671-21kthreadcore00:22:390
149950,0migration/019379-21kthreadcore00:02:390
149950,0migration/019278-21fschecks_count23:07:320
149950,0migration/017732-21kthreadcore22:07:380
149950,0migration/017168-21kthreadcore20:27:370
149950,0migration/010928-21kthreadcore22:22:390
106749950,0cyclictest0-21swapper/200:11:382
106729955,0cyclictest0-21swapper/123:50:291
106729955,0cyclictest0-21swapper/123:32:211
106729955,0cyclictest0-21swapper/121:51:561
106729955,0cyclictest0-21swapper/121:16:461
106729955,0cyclictest0-21swapper/100:34:001
106729950,0cyclictest0-21swapper/123:23:411
106729950,0cyclictest0-21swapper/123:12:481
106729950,0cyclictest0-21swapper/122:38:071
106729950,0cyclictest0-21swapper/121:54:081
106729950,0cyclictest0-21swapper/121:24:201
106719953,0cyclictest26237-21kworker/0:023:41:200
106719953,0cyclictest21808-21kworker/0:122:50:470
106719953,0cyclictest21808-21kworker/0:121:52:250
106719953,0cyclictest21808-21kworker/0:121:36:550
8305040,0irq/26-0000:00:0-21swapper/219:47:192
339940,0migration/34782-21kthreadcore20:17:383
339940,0migration/32475-21kthreadcore19:32:363
339940,0migration/313132-21kthreadcore19:17:383
339940,0migration/313012-21kthreadcore19:37:373
329940,0watchdog/324036-21kthreadcore20:32:353
329940,0watchdog/30-21swapper/321:07:353
329940,0watchdog/30-21swapper/320:57:393
29815040,0irq/29-eth0-tx-31067-21kthreadcore22:17:372
29815040,0irq/29-eth0-tx-11005-21aten2.4-expect19:17:320
29815040,0irq/29-eth0-tx-0-21swapper/223:03:572
29815040,0irq/29-eth0-tx-0-21swapper/222:32:312
29815040,0irq/29-eth0-tx-0-21swapper/221:52:232
29815040,0irq/29-eth0-tx-0-21swapper/200:32:302
29815040,0irq/29-eth0-tx-0-21swapper/019:22:380
29805040,0irq/28-eth0-rx-0-21swapper/323:42:343
29805040,0irq/28-eth0-rx-0-21swapper/322:37:323
29805040,0irq/28-eth0-rx-0-21swapper/322:19:393
29805040,0irq/28-eth0-rx-0-21swapper/321:45:403
29805040,0irq/28-eth0-rx-0-21swapper/321:38:453
29805040,0irq/28-eth0-rx-0-21swapper/319:22:303
27140,0ktimersoftd/20-21swapper/200:37:302
259940,0migration/24279-21cpuspeed_turbos20:42:322
259940,0migration/226917-21kthreadcore19:27:372
259940,0migration/221876-21kthreadcore00:02:402
259940,0migration/219502-21fschecks_time23:07:332
259940,0migration/211002-21fschecks_time21:47:342
259940,0migration/210600-21runrttasks19:59:362
259940,0migration/21030-21kthreadcore20:37:392
249940,0watchdog/27947-21ssh22:42:272
249940,0watchdog/221921-21diskmemload23:47:232
249940,0watchdog/215245-21kthreadcore19:17:382
249940,0watchdog/20-21swapper/220:47:392
249940,0watchdog/20-21swapper/220:12:392
179940,0migration/19939-21kthreadcore23:37:371
179940,0migration/14600-21fschecks_time23:17:341
179940,0migration/128658-21taskset20:33:531
179940,0migration/127976-21kthreadcore00:07:391
179940,0migration/127509-21latency_hist00:27:201
179940,0migration/124965-21aten_r1power_cu21:37:301
179940,0migration/122554-21fschecks_time19:47:331
179940,0migration/122401-21irqrtprio22:12:361
179940,0migration/121418-21kthreadcore20:52:371
179940,0migration/119810-21kthreadcore19:22:361
179940,0migration/119467-21fschecks_count00:22:351
179940,0migration/116878-21latency20:02:371
179940,0migration/11683-21kthreadcore23:52:381
179940,0migration/11494-21aten_r1power_fr21:42:321
179940,0migration/112328-21kthreadcore00:17:371
179940,0migration/112286-21aten_r1power_en22:07:301
169940,0watchdog/19076-21irqcore21:07:351
169940,0watchdog/18573-21hddtemp_smartct20:22:351
169940,0watchdog/129168-21kthreadcore20:57:391
169940,0watchdog/123235-21ssh21:33:271
169940,0watchdog/117822-21cut19:42:381
169940,0watchdog/10-21swapper/123:02:391
149940,0migration/07867-21fschecks_count19:37:320
149940,0migration/0349-21sh22:55:110
149940,0migration/0321-21kthreadcore00:27:390
149940,0migration/028904-21runrttasks22:16:340
149940,0migration/022115-21latency_hist21:17:200
106749943,0cyclictest3524-21snmpd20:09:452
106749943,0cyclictest28639-21awk23:12:372
106749943,0cyclictest2504-21awk21:42:362
106749943,0cyclictest23117-21awk20:32:332
106749943,0cyclictest1098-21awk19:32:342
106729943,0cyclictest6937-21awk22:22:361
106729943,0cyclictest3571-21lldpd23:09:491
106729943,0cyclictest3571-21lldpd22:33:481
106729943,0cyclictest3571-21lldpd22:02:491
106729943,0cyclictest3571-21lldpd21:32:181
106729943,0cyclictest3571-21lldpd20:16:161
106729943,0cyclictest3250-21irqbalance23:27:371
106729943,0cyclictest3250-21irqbalance22:54:171
106729943,0cyclictest3250-21irqbalance21:58:361
106729943,0cyclictest3250-21irqbalance19:57:461
106729943,0cyclictest3250-21irqbalance19:52:361
106729943,0cyclictest3250-21irqbalance19:37:361
106729943,0cyclictest3250-21irqbalance19:27:361
106729943,0cyclictest3250-21irqbalance19:17:361
106729943,0cyclictest3250-21irqbalance00:42:271
106729943,0cyclictest30240-21awk20:37:361
106729943,0cyclictest2594-21awk22:57:371
106729943,0cyclictest23309-21awk21:17:351
106729943,0cyclictest17820-21awk22:47:351
106729943,0cyclictest17791-21awk00:02:361
106729943,0cyclictest12351-21awk20:47:361
106729943,0cyclictest1167-21awk19:32:341
106719943,0cyclictest4841-21awk22:02:360
106719943,0cyclictest449-21awk23:52:360
106719943,0cyclictest3571-21lldpd23:44:190
106719943,0cyclictest3571-21lldpd00:19:500
106719943,0cyclictest3524-21snmpd20:36:300
106719943,0cyclictest3524-21snmpd19:43:590
106719943,0cyclictest30367-21awk20:37:370
106719943,0cyclictest24080-21awk22:32:340
106719943,0cyclictest11215-21awk21:47:350
106719942,0cyclictest26237-21kworker/0:023:27:350
106719942,0cyclictest26237-21kworker/0:023:15:550
106719942,0cyclictest26237-21kworker/0:023:02:370
106719942,0cyclictest21808-21kworker/0:122:19:250
106719942,0cyclictest21808-21kworker/0:121:29:190
106719940,0cyclictest0-21swapper/021:12:360
329930,0watchdog/30-21swapper/321:12:393
329930,0watchdog/30-21swapper/320:27:393
329930,0watchdog/30-21swapper/320:22:393
329930,0watchdog/30-21swapper/319:27:383
29805030,0irq/28-eth0-rx-0-21swapper/319:57:383
29805030,0irq/28-eth0-rx-0-21swapper/319:52:313
29805030,0irq/28-eth0-rx-0-21swapper/319:47:313
249930,0watchdog/220703-40yum-updatesd-he21:12:392
179930,0migration/123347-21kthreadcore20:07:381
169930,0watchdog/114773-21ssh22:42:551
169930,0watchdog/10-21swapper/123:43:151
169930,0watchdog/10-21swapper/121:02:391
169930,0watchdog/10-21swapper/120:27:231
169930,0watchdog/10-21swapper/100:12:351
106749933,0cyclictest3571-21lldpd19:55:162
106749932,0cyclictest3571-21lldpd20:05:162
106749932,0cyclictest13612-21sensors19:37:402
106749930,0cyclictest8574-21perl21:07:322
106729932,0cyclictest10275-21sensors20:42:421
106719933,0cyclictest26237-21kworker/0:023:58:440
106719933,0cyclictest26237-21kworker/0:023:58:440
106719933,0cyclictest26237-21kworker/0:023:47:340
106719933,0cyclictest21808-21kworker/0:120:52:230
106719933,0cyclictest21808-21kworker/0:120:47:230
106719933,0cyclictest10998-21kworker/0:020:02:490
106719932,0cyclictest17977-21grep23:22:390
106719931,0cyclictest21808-21kworker/0:122:42:350
106719931,0cyclictest16672-21kworker/0:100:37:220
329920,0watchdog/30-21swapper/320:07:273
249920,0watchdog/20-21swapper/219:22:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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