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2026-08-07 - 08:26
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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 07, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2845125243,0sleep30-21swapper/319:27:173
2851924936,0sleep00-21swapper/019:28:060
2832924738,0sleep20-21swapper/219:25:522
2830123525,0sleep10-21swapper/119:25:351
339960,0migration/332453-21sh00:32:133
339960,0migration/330596-21sh00:12:183
339960,0migration/329085-21sh23:53:113
339960,0migration/31588-21sh00:51:093
339960,0migration/31530-21hwlatdetect21:24:503
339960,0migration/314348-21sh22:46:263
339960,0migration/311608-21sh23:42:033
329960,0watchdog/320146-21sh23:47:063
29815060,0irq/29-eth0-tx-4057-21munin-node21:04:550
29815060,0irq/29-eth0-tx-29181-21munin-node20:59:490
29815060,0irq/29-eth0-tx-29083-21munin-node20:14:490
29815060,0irq/29-eth0-tx-16291-21munin-node21:34:562
29815060,0irq/29-eth0-tx-14806-21munin-node20:49:550
29815060,0irq/29-eth0-tx-13502-21sensors_fan22:44:582
29805060,0irq/28-eth0-rx-32481-21kernelversion22:39:523
29805060,0irq/28-eth0-rx-23309-21smartctl22:34:493
29805060,0irq/28-eth0-rx-10239-21iostat_ios23:04:533
287149965,0cyclictest7603-21diskmemload23:20:432
287149960,0cyclictest9075-21kthreadcore19:59:522
287149960,0cyclictest7603-21diskmemload21:48:102
287139966,0cyclictest3524-21snmpd21:30:411
149960,0migration/04624-21kthreadcore19:54:520
149960,0migration/03537-21kthreadcore22:59:550
149960,0migration/030246-21kthreadcore21:19:530
149960,0migration/010272-21sh23:23:400
339950,0migration/38670-21kthreadcore22:24:533
339950,0migration/38400-21munin-node19:59:483
339950,0migration/35758-21kthreadcore22:59:553
339950,0migration/34802-21kthreadcore00:54:543
339950,0migration/34001-21kthreadcore00:14:553
339950,0migration/34001-21kthreadcore00:14:553
339950,0migration/33861-21munin-node22:04:493
339950,0migration/332003-21taskset21:40:563
339950,0migration/329617-21kthreadcore23:34:553
339950,0migration/327174-21kthreadcore19:49:523
339950,0migration/325558-21kthreadcore20:54:543
339950,0migration/318721-21munin-node21:54:463
339950,0migration/317125-21kthreadcore20:49:523
339950,0migration/313754-21kthreadcore22:09:533
339950,0migration/311121-21aten_r1power_fr19:39:473
329950,0watchdog/324246-21munin-node22:54:463
329950,0watchdog/31678-21grep00:34:503
329950,0watchdog/313803-21aten2.4-expect22:29:463
329950,0watchdog/310689-21kthreadcore23:59:543
29815050,0irq/29-eth0-tx-8330-21ssh00:36:172
29815050,0irq/29-eth0-tx-819-21python00:50:002
29815050,0irq/29-eth0-tx-30635-21ssh00:12:242
29815050,0irq/29-eth0-tx-29045-21munin-node22:20:002
29815050,0irq/29-eth0-tx-24706-21sed21:54:542
29815050,0irq/29-eth0-tx-18497-21munin-node21:14:490
29815050,0irq/29-eth0-tx-18261-21kthreadcore00:04:532
29815050,0irq/29-eth0-tx-15718-21munin-node22:50:002
29815050,0irq/29-eth0-tx-0-21swapper/223:40:292
29815050,0irq/29-eth0-tx-0-21swapper/221:42:212
29815050,0irq/29-eth0-tx-0-21swapper/221:33:242
29815050,0irq/29-eth0-tx-0-21swapper/020:54:530
29815050,0irq/29-eth0-tx-0-21swapper/019:40:020
29815050,0irq/29-eth0-tx-0-21swapper/019:34:560
29805050,0irq/28-eth0-rx-8981-21if_eth121:29:503
29805050,0irq/28-eth0-rx-6314-21runrttasks21:51:073
29805050,0irq/28-eth0-rx-450-21kthreadcore21:59:553
29805050,0irq/28-eth0-rx-31705-21kthreadcore20:59:503
29805050,0irq/28-eth0-rx-24096-21ssh00:27:423
29805050,0irq/28-eth0-rx-0-21swapper/323:30:333
29805050,0irq/28-eth0-rx-0-21swapper/323:25:163
29805050,0irq/28-eth0-rx-0-21swapper/322:54:333
29805050,0irq/28-eth0-rx-0-21swapper/322:20:403
29805050,0irq/28-eth0-rx-0-21swapper/322:14:533
29805050,0irq/28-eth0-rx-0-21swapper/321:36:223
29805050,0irq/28-eth0-rx-0-21swapper/300:19:553
29805050,0irq/28-eth0-rx-0-21swapper/300:04:533
287149955,0cyclictest0-21swapper/222:12:372
287149954,0cyclictest3524-21snmpd22:39:352
287139955,0cyclictest0-21swapper/121:47:281
287139950,0cyclictest0-21swapper/123:58:471
287139950,0cyclictest0-21swapper/123:25:121
287139950,0cyclictest0-21swapper/123:20:381
287139950,0cyclictest0-21swapper/123:12:361
287139950,0cyclictest0-21swapper/122:53:221
287139950,0cyclictest0-21swapper/100:20:521
259950,0migration/29643-21pmu-power22:04:582
259950,0migration/26960-21kthreadcore19:34:532
259950,0migration/232211-21kthreadcore23:54:522
259950,0migration/225432-21missed_timers23:29:542
259950,0migration/223028-21kthreadcore21:14:522
259950,0migration/219272-21gltestperf00:44:512
259950,0migration/218506-21gltestperf23:09:512
259950,0migration/218320-21sh23:27:192
259950,0migration/216050-21sh00:24:122
259950,0migration/21095-21kthreadcore00:14:542
259950,0migration/21095-21kthreadcore00:14:542
249950,0watchdog/213805-21tail22:29:462
179950,0migration/17620-21sh23:01:211
179950,0migration/13286-21kthreadcore21:24:521
179950,0migration/132437-21fschecks_time00:14:501
179950,0migration/132437-21fschecks_time00:14:501
179950,0migration/128154-21gltestperf21:59:501
179950,0migration/126951-21kthreadcore22:54:531
179950,0migration/123247-21gltestperf22:34:491
179950,0migration/11834-21munin-node23:35:001
179950,0migration/117685-21kthreadcore20:04:521
179950,0migration/114978-21kthreadcore23:44:521
179950,0migration/113131-21kthreadcore19:39:521
169950,0watchdog/11955-21grep20:14:531
169950,0watchdog/118796-21awk00:44:501
149950,0migration/09790-21latency20:19:540
149950,0migration/09558-21latency_hist00:39:360
149950,0migration/07962-21kthreadcore23:59:530
149950,0migration/07618-21idleruntime-cro21:29:340
149950,0migration/04809-21irqcore22:04:530
149950,0migration/0440-21sh00:14:530
149950,0migration/0440-21sh00:14:530
149950,0migration/03461-21kthreadcore20:39:520
149950,0migration/032613-21kthreadcore23:34:560
149950,0migration/030842-21kthreadcore00:49:550
149950,0migration/030047-21kthreadcore20:34:520
149950,0migration/029924-21aten_r1power_fr23:54:460
149950,0migration/028902-21latency_hist19:29:340
149950,0migration/028887-21timerwakeupswit22:35:010
149950,0migration/028527-21irqcore21:59:530
149950,0migration/028312-21kthreadcore19:49:520
149950,0migration/028247-21kthreadcore22:54:530
149950,0migration/027669-21kthreadcore00:29:520
149950,0migration/024577-21kthreadcore22:14:540
149950,0migration/024034-21runrttasks21:54:530
149950,0migration/02038-21latency_hist23:19:350
149950,0migration/018341-21aten_r1power_vo19:44:470
149950,0migration/017062-21sh23:08:580
149950,0migration/016423-21sh00:24:400
149950,0migration/016143-21kthreadcore20:24:540
149950,0migration/014568-21kthreadcore21:09:500
149950,0migration/014319-21switchtime00:20:030
149950,0migration/013245-21irqcore22:09:530
149950,0migration/012464-21sh22:26:340
149950,0migration/011168-21kthreadcore21:29:530
8305040,0irq/26-0000:00:0-21swapper/321:14:343
8305040,0irq/26-0000:00:0-21swapper/223:14:352
339940,0migration/3876-21kthreadcore20:14:533
339940,0migration/37893-21kthreadcore19:34:533
339940,0migration/36174-21kthreadcore20:19:533
339940,0migration/3386-21aten_r1power_po20:39:463
339940,0migration/33519-21diskmemload23:19:523
339940,0migration/324654-21switchtime20:30:063
339940,0migration/312834-21kernelversion21:09:503
32386240,0sleep30-21swapper/323:14:583
329940,0watchdog/331361-21kthreadcore21:19:543
329940,0watchdog/30-21swapper/323:54:543
329940,0watchdog/30-21swapper/321:44:543
329940,0watchdog/30-21swapper/320:34:493
329940,0watchdog/30-21swapper/320:28:053
329940,0watchdog/30-21swapper/319:44:533
329940,0watchdog/30-21swapper/319:31:333
29815040,0irq/29-eth0-tx-1213-21tune2fs22:59:512
29815040,0irq/29-eth0-tx-0-21swapper/223:59:522
29815040,0irq/29-eth0-tx-0-21swapper/223:34:352
29815040,0irq/29-eth0-tx-0-21swapper/223:04:532
29815040,0irq/29-eth0-tx-0-21swapper/221:59:392
29815040,0irq/29-eth0-tx-0-21swapper/221:49:522
29815040,0irq/29-eth0-tx-0-21swapper/200:54:362
29815040,0irq/29-eth0-tx-0-21swapper/200:39:422
29815040,0irq/29-eth0-tx-0-21swapper/200:29:382
29815040,0irq/29-eth0-tx-0-21swapper/200:25:192
29815040,0irq/29-eth0-tx-0-21swapper/020:10:280
29805040,0irq/28-eth0-rx-0-21swapper/323:09:443
29805040,0irq/28-eth0-rx-0-21swapper/321:04:383
29805040,0irq/28-eth0-rx-0-21swapper/320:04:513
29805040,0irq/28-eth0-rx-0-21swapper/319:54:593
29805040,0irq/28-eth0-rx-0-21swapper/300:46:563
29805040,0irq/28-eth0-rx-0-21swapper/300:41:043
287149943,0cyclictest5210-21awk21:04:512
287149943,0cyclictest3571-21lldpd20:54:362
287149943,0cyclictest3524-21snmpd21:28:342
287149943,0cyclictest30084-21awk19:29:502
287149943,0cyclictest19404-21awk20:29:492
287149943,0cyclictest15869-21awk20:49:502
287149943,0cyclictest13955-21awk23:44:512
287149940,0cyclictest0-21swapper/222:24:472
287139944,0cyclictest0-21swapper/122:45:191
287139944,0cyclictest0-21swapper/100:57:551
287139944,0cyclictest0-21swapper/100:50:391
287139944,0cyclictest0-21swapper/100:30:481
287139943,0cyclictest6453-21awk22:24:511
287139943,0cyclictest3571-21lldpd20:49:361
287139943,0cyclictest31956-21awk22:39:501
287139943,0cyclictest30250-21awk20:59:481
287139943,0cyclictest23020-21awk20:54:521
287139943,0cyclictest19635-21awk21:14:491
287139943,0cyclictest19284-21awk19:44:501
287139943,0cyclictest17553-21awk00:24:511
287129943,0cyclictest9769-21sadc21:49:340
287129943,0cyclictest8709-21awk20:44:490
287129943,0cyclictest7505-21munin-node19:59:480
287129943,0cyclictest3571-21lldpd20:08:050
287129943,0cyclictest11943-21awk23:24:510
259940,0migration/26324-21munin-node20:39:542
259940,0migration/26016-21kthreadcore20:19:532
259940,0migration/229499-21df_inode20:14:482
259940,0migration/229015-21kthreadcore22:54:532
259940,0migration/226293-21kthreadcore22:14:542
259940,0migration/221738-21latency_hist20:09:342
259940,0migration/215951-21kthreadcore21:09:512
259940,0migration/211986-21gltestperf19:39:492
249940,0watchdog/24446-21latency22:39:542
249940,0watchdog/221402-21aten_r1power_po23:49:462
179940,0migration/19298-21kthreadcore19:59:521
179940,0migration/1715-21sh23:16:071
179940,0migration/17060-21runrttasks20:41:101
179940,0migration/13697-21latency_hist19:34:341
179940,0migration/131534-21kthreadcore19:29:511
179940,0migration/131252-21munin-node21:40:011
179940,0migration/130849-21runrttasks00:13:001
179940,0migration/130847-21kthreadcore19:49:531
179940,0migration/124681-21kthreadcore23:29:531
179940,0migration/120647-21aten_r1power_po22:14:471
179940,0migration/119330-21fschecks_time21:54:481
179940,0migration/119110-21fschecks_time20:29:471
179940,0migration/114237-21kthreadcore21:49:531
179940,0migration/11388-21sh19:54:501
169940,0watchdog/19101-21taskset00:38:341
169940,0watchdog/15934-21kthreadcore23:39:541
169940,0watchdog/15145-21ssh22:04:541
169940,0watchdog/14829-21perl20:19:491
169940,0watchdog/131360-21kthreadcore21:19:541
169940,0watchdog/129393-21ssh23:54:061
169940,0watchdog/12647-21needreboot22:19:541
169940,0watchdog/123209-21sh21:35:381
169940,0watchdog/115089-21tr22:09:541
169940,0watchdog/112054-21perl20:24:491
169940,0watchdog/111981-21cut23:04:541
169940,0watchdog/110604-21perl00:39:501
169940,0watchdog/10-21swapper/122:29:461
149940,0migration/05080-21gltestperf23:39:500
149940,0migration/025464-21runrttasks00:46:150
149940,0migration/019559-21kthreadcore22:29:530
149940,0migration/013967-21kthreadcore00:39:550
149940,0migration/012470-21kthreadcore22:44:550
29805030,0irq/28-eth0-rx-0-21swapper/320:44:453
29805030,0irq/28-eth0-rx-0-21swapper/320:11:103
287149933,0cyclictest3571-21lldpd19:54:352
287149933,0cyclictest305350irq/27-eth120:34:482
287149932,0cyclictest3524-21snmpd20:45:342
287149932,0cyclictest3524-21snmpd20:10:032
287149931,0cyclictest32767-21kthreadcore20:59:512
287149930,0cyclictest26548-21perl21:19:492
287139933,0cyclictest3571-21lldpd20:49:061
287139933,0cyclictest12348-21awk21:09:481
287139932,0cyclictest5108-21awk21:04:501
287139932,0cyclictest15852-21awk00:04:511
287139930,0cyclictest22735-21perl20:09:481
287129933,0cyclictest0-21swapper/023:09:510
287129933,0cyclictest0-21swapper/000:54:510
287129933,0cyclictest0-21swapper/000:06:080
287129932,0cyclictest3524-21snmpd23:49:500
287129932,0cyclictest29465-21sensors00:10:000
287129932,0cyclictest26992-21kthreadcore21:39:570
287129932,0cyclictest16795-21awk22:49:500
287129932,0cyclictest11078-21wc21:49:500
287129931,0cyclictest16683-21df_abs21:34:460
287129930,0cyclictest29765-21perl22:19:470
287129930,0cyclictest22280-21cut20:29:520
287129930,0cyclictest13558-21perl23:44:490
287129930,0cyclictest0-21swapper/023:30:520
259930,0migration/228543-21kthreadcore19:49:522
249930,0watchdog/20-21swapper/220:24:492
249930,0watchdog/20-21swapper/219:44:532
169930,0watchdog/10-21swapper/123:59:541
169930,0watchdog/10-21swapper/120:34:491
287129920,0cyclictest0-21swapper/022:39:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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