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2026-08-13 - 09:07
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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 Thu Aug 13, 2026 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215759986384562,4073cyclictest9740-21kworker/0:019:12:240
215759980293999,3980cyclictest9740-21kworker/0:019:21:560
215759972743843,3416cyclictest9740-21kworker/0:019:25:160
215759958883182,2702cyclictest9740-21kworker/0:019:15:290
213012800183,200sleep00-21swapper19:08:230
215759953088,382cyclictest9163-21rm22:41:250
215759952627,438cyclictest23776-21sed22:00:280
215759952297,365cyclictest11-21ksoftirqd/022:51:380
215759951652,450cyclictest22322-21ssh00:26:410
215759951053,396cyclictest4924-21runrttasks21:45:240
215759950952,397cyclictest1694-21diskmemload21:17:510
215759950853,395cyclictest4924-21runrttasks20:51:270
215759950754,439cyclictest11087-21strings22:46:020
215759950556,388cyclictest1694-21diskmemload23:03:020
215759950552,384cyclictest1694-21diskmemload21:50:120
215759950353,389cyclictest2990-21ssh22:26:260
215759949853,262cyclictest19553-21ssh23:05:480
215759949665,371cyclictest11-21ksoftirqd/019:30:240
215759949553,256cyclictest2813-21wc21:11:160
215759949453,267cyclictest2909-21ssh23:41:440
215759949353,379cyclictest5562-21ssh23:48:280
215759949253,380cyclictest27253-21ssh00:39:230
215759949053,261cyclictest24680-21apt-get23:17:110
215759948853,258cyclictest4305-21snmpd21:09:100
215759948654,417cyclictest1694-21diskmemload00:41:350
215759948553,418cyclictest6967-21munin-node23:51:120
215759948455,414cyclictest4924-21runrttasks23:32:120
215759948354,359cyclictest12672-21chrt21:35:050
215759948154,413cyclictest22762-21sh23:13:190
215759948031,388cyclictest24184-21kworker/u2:123:20:120
215759947955,363cyclictest23568-21ssh00:30:380
215759947855,362cyclictest5385-21ssh22:32:510
215759947835,382cyclictest4305-21snmpd20:23:440
215759947828,389cyclictest344450irq/10-eth021:57:200
215759947753,354cyclictest26651-21cpuspeed22:06:120
215759947556,359cyclictest1694-21diskmemload00:12:550
215759947353,360cyclictest2809-21seq19:45:170
215759947255,356cyclictest7548-21ssh21:21:410
215759947253,358cyclictest4924-21runrttasks21:00:050
215759947054,357cyclictest1694-21diskmemload21:26:280
215759946955,354cyclictest31496-21apt-get22:17:230
215759946854,353cyclictest2604-21cron19:45:010
215759946454,349cyclictest12587-21ssh00:05:270
215759946352,234cyclictest4305-21snmpd22:36:130
215759946052,347cyclictest4305-21snmpd23:56:330
215759945955,228cyclictest872-21chrt23:37:120
21575994554,437cyclictest20263-21strings20:30:470
215759945455,227cyclictest20719-21ssh00:24:000
21575994545,435cyclictest18155-21ssh00:16:490
215759944955,381cyclictest1694-21diskmemload22:59:030
215759944153,373cyclictest14928-21chrt21:40:110
215759943953,372cyclictest15311-21apt-get20:17:040
215759943853,372cyclictest29091-21ssh23:27:380
21575994385,419cyclictest1647-21ssh22:24:240
21575994385,374cyclictest12030-21ssh00:03:290
21575994350,375cyclictest1694-21diskmemload22:13:090
215759943058,359cyclictest4305-21snmpd20:48:590
215759942247,362cyclictest11-21ksoftirqd/021:35:350
215759942172,288cyclictest10710-21awk20:05:300
215759940154,334cyclictest18411-21strings20:25:450
215759939852,332cyclictest21323-21which20:35:120
215759939355,338cyclictest0-21swapper19:57:230
215759938753,320cyclictest897-21jbd2/sda1-820:45:020
215759938153,268cyclictest13682-21chrt20:13:570
215759937332,341cyclictest0-21swapper19:37:070
215759936935,334cyclictest0-21swapper21:02:150
215759936233,315cyclictest8530-21awk20:00:190
215759936228,319cyclictest5180-21sed19:50:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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