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2026-08-14 - 18:19
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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 all highest latencies:
System rack6slot5.osadl.org (updated Fri Aug 14, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288759990204733,4284cyclictest12906-21kworker/0:207:12:320
288759989754599,4366cyclictest12906-21kworker/0:207:15:500
288759985604243,4303cyclictest12906-21kworker/0:207:25:090
288759977533964,3775cyclictest6429-21kworker/0:107:45:580
288759971603943,3158cyclictest6429-21kworker/0:107:39:350
288759947702698,2062cyclictest12906-21kworker/0:207:20:080
285122781184,203sleep00-21swapper07:07:390
288759950732,475cyclictest0-21swapper12:07:120
288759949433,390cyclictest3172-21upstart-udev-br10:01:160
288759948835,439cyclictest9570-21diskmemload11:07:400
288759948834,440cyclictest9570-21diskmemload12:23:280
288759948734,439cyclictest19013-21ssh10:44:580
288759948734,439cyclictest1398-21ssh11:17:160
288759948634,439cyclictest12386-21ssh09:15:390
288759948532,439cyclictest14884-21ssh09:20:550
288759948434,437cyclictest351950irq/10-yenta08:06:190
288759948433,438cyclictest16261-21strings11:51:040
288759948431,439cyclictest9570-21diskmemload10:23:060
288759948333,437cyclictest9570-21diskmemload09:27:580
288759948232,437cyclictest25150-21ssh12:11:310
288759947833,432cyclictest4924-21runrttasks08:18:220
288759947237,435cyclictest0-21swapper11:23:060
288759946834,373cyclictest9570-21diskmemload10:34:510
288759946231,361cyclictest25095-21munin-node09:45:400
288759945332,407cyclictest9570-21diskmemload11:49:470
288759944532,81cyclictest13-21rcuc/010:17:060
288759944113,413cyclictest22319-21ssh09:37:540
288759943723,402cyclictest32201-21kworker/u2:112:30:220
288759943161,204cyclictest13-21rcuc/009:06:110
288759943070,347cyclictest351950irq/10-yenta10:53:360
288759942453,358cyclictest26835-21kworker/u2:109:52:210
288759942362,348cyclictest0-21swapper10:06:530
288759942334,87cyclictest9570-21diskmemload10:58:330
288759942234,319cyclictest31407-21ssh12:26:140
288759941763,340cyclictest0-21swapper09:55:360
288759941714,389cyclictest9570-21diskmemload09:31:230
288759941645,358cyclictest11-21ksoftirqd/010:38:510
288759941546,204cyclictest0-21swapper08:56:440
288759941542,313cyclictest4305-21snmpd09:12:430
288759941336,355cyclictest9570-21diskmemload11:42:300
288759941047,88cyclictest8890-21sh11:35:180
288759940835,199cyclictest6314-21seq11:29:130
288759940833,362cyclictest9570-21diskmemload11:57:510
288759940832,362cyclictest32198-21ssh11:14:590
288759940644,349cyclictest0-21swapper10:10:560
288759940533,358cyclictest10396-21ssh10:25:150
288759940532,312cyclictest20496-21rm12:00:510
288759940436,355cyclictest17032-21kworker/u2:108:01:490
288759940346,118cyclictest3073-21cut12:35:510
288759940252,290cyclictest9570-21diskmemload11:00:350
288759940234,189cyclictest2858-21nfs_client08:50:370
288759940232,187cyclictest26001-21memory08:25:350
288759940223,87cyclictest0-21swapper09:42:010
288759940133,355cyclictest20808-21ssh10:47:590
288759939335,299cyclictest4924-21runrttasks08:38:410
288759939036,294cyclictest157312sleep007:58:090
288759939034,297cyclictest7053-21df_inode11:30:370
288759938834,340cyclictest27315-21ssh12:16:410
288759938633,339cyclictest5439-21strings07:30:450
288759938633,292cyclictest6117-21df09:00:190
288759938533,339cyclictest1083-21strings08:45:410
288759938424,302cyclictest0-21swapper08:14:510
288759938232,291cyclictest31262-21df_inode08:40:270
288759937731,287cyclictest28741-21sshd08:33:330
288759937034,276cyclictest13508-21ps07:51:000
288759933220,296cyclictest23495-21munin-node08:20:300
288759921527,149cyclictest8389-21runrttasks07:40:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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