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2026-07-29 - 18:53
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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 rack6slot5.osadl.org (updated Wed Jul 29, 2026 12:46:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
217599977604172,3538cyclictest6758-21kworker/0:107:14:100
217599972473921,3312cyclictest6758-21kworker/0:107:19:230
217599962463254,2978cyclictest6758-21kworker/0:107:23:560
211942775183,201sleep00-21swapper07:05:580
217599953230,432cyclictest14899-21ssh09:38:580
217599952528,483cyclictest3665-21open_files07:45:350
217599952254,454cyclictest9210-21cut11:56:040
217599951754,277cyclictest17554-21ssh09:45:260
217599951054,395cyclictest31897-21nscd10:55:210
217599950929,417cyclictest12458-21rm09:32:210
217599950864,384cyclictest11665-21cut12:01:340
217599950755,390cyclictest1683-21ssh10:23:420
217599950554,391cyclictest23639-21tr11:15:170
217599950554,391cyclictest2339-21ssh09:10:210
217599950354,389cyclictest17628-21strings12:16:040
217599950155,386cyclictest2129-21diskmemload11:54:530
217599949954,383cyclictest2129-21diskmemload10:25:250
217599949855,267cyclictest2129-21diskmemload12:36:060
217599949661,422cyclictest20570-21switchtime08:30:380
217599949653,382cyclictest14704-21ssh12:10:140
217599949556,265cyclictest2129-21diskmemload09:54:020
217599948954,260cyclictest13165-21seq12:05:430
217599948154,366cyclictest5320-21perl11:46:410
217599947855,364cyclictest2129-21diskmemload12:26:380
217599947755,362cyclictest2129-21diskmemload11:03:540
217599947728,390cyclictest1211-21kworker/u2:311:44:160
217599947654,361cyclictest31683-21apt-get10:17:180
217599947555,359cyclictest7651-21ssh09:21:140
217599947456,357cyclictest2129-21diskmemload10:53:170
217599947355,359cyclictest2129-21diskmemload10:11:000
217599947352,408cyclictest21656-21munin-node09:56:320
217599947328,384cyclictest31615-21rm11:32:580
217599947255,356cyclictest20136-21strings11:06:060
217599947055,354cyclictest2129-21diskmemload10:08:500
217599946953,357cyclictest26805-21runrttasks08:46:420
217599946953,356cyclictest986-21cron07:40:010
217599946753,353cyclictest29384-21ssh11:27:260
217599946253,348cyclictest193832sleep008:26:270
217599946155,347cyclictest9646-21strings09:26:010
217599945956,342cyclictest23559-21ssh11:15:070
217599945927,418cyclictest31846-21munin-node09:00:490
217599945734,409cyclictest4951-21kworker/u2:009:42:100
217599945568,88cyclictest24154-21runrttasks12:31:210
217599945253,338cyclictest29516-21kworker/u2:110:40:070
217599945054,382cyclictest10101-21ssh10:42:200
217599945030,405cyclictest31556-21sh07:35:010
217599945027,408cyclictest25884-21ssh11:20:290
217599944954,381cyclictest19102-21ssh12:20:260
217599943969,357cyclictest13-21rcuc/012:40:290
217599943764,360cyclictest4224-21lldpd09:15:540
217599943664,359cyclictest13-21rcuc/010:47:480
217599943663,360cyclictest2129-21diskmemload11:35:350
217599943454,367cyclictest14356-21munin-node08:15:270
217599942170,177cyclictest13-21rcuc/007:51:160
217599941755,303cyclictest6300-21ssh10:34:560
217599941040,370cyclictest0-21swapper08:56:530
217599940955,331cyclictest25233-21ssh10:01:530
217599940350,161cyclictest27810-21df_abs08:50:330
217599940033,354cyclictest233402chrt08:38:500
217599939653,320cyclictest2123-21cron09:10:020
217599939529,366cyclictest0-21swapper08:00:360
217599939036,354cyclictest0-21swapper08:12:500
217599937835,343cyclictest0-21swapper07:43:230
217599937832,332cyclictest28705-21grep07:25:400
217599937035,275cyclictest7777-21munin-node07:55:480
21759993691,355cyclictest0-21swapper08:07:240
217599936431,318cyclictest24672-21fschecks_time08:41:030
217599936030,316cyclictest16737-21df_abs08:20:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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