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2026-06-30 - 09:30
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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 Tue Jun 30, 2026 00:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
288299980434109,3892cyclictest15600-21kworker/0:019:15:140
288299948662669,2194cyclictest15600-21kworker/0:019:12:100
282112809184,177sleep00-21swapper19:05:310
288299953025,490cyclictest1026-21munin-node23:15:360
288299952026,433cyclictest4924-21runrttasks21:33:380
288299951829,420cyclictest27565-21gltestperf21:50:300
288299951627,427cyclictest13835-21nfs_client22:30:570
288299950829,418cyclictest240502chrt22:53:570
288299950425,410cyclictest9039-21diskmemload23:02:440
288299949764,257cyclictest5668-21ssh22:12:390
288299949763,374cyclictest29778-21apt-get00:17:240
288299949659,263cyclictest52262sleep020:59:080
288299949652,430cyclictest4106-21ssh00:31:440
288299949354,262cyclictest837-21ssh00:25:410
288299949352,382cyclictest21106-21seq23:58:450
288299948953,421cyclictest20336-21which20:10:580
288299948352,416cyclictest8653-21nfs_client23:30:500
288299947953,364cyclictest26138-21fschecks_count20:26:240
288299947355,358cyclictest6906-21rm00:38:570
288299947255,358cyclictest26709-21runrttasks21:47:500
288299947252,350cyclictest11827-21ssh23:37:450
288299947053,242cyclictest7609-21ssh23:29:090
288299947034,436cyclictest0-21swapper23:53:070
288299946854,354cyclictest32609-21ssh00:24:410
288299946655,227cyclictest20744-21strings22:46:000
288299946652,354cyclictest31077-21sh23:10:010
288299946632,434cyclictest0-21swapper22:57:070
288299946555,348cyclictest15164-21ssh23:45:380
288299946554,352cyclictest14825-21ssh21:21:230
288299946255,347cyclictest22720-21sshd20:18:410
288299946154,346cyclictest13602-21ssh23:41:230
288299946069,92cyclictest18999-21fschecks_count22:41:440
288299946056,343cyclictest21360-21ssh21:36:030
288299946049,341cyclictest11216-21grep22:25:390
288299945987,360cyclictest10185-21ssh22:22:380
288299945855,345cyclictest584-21kworker/u2:122:08:270
288299945754,342cyclictest8372-21ssh00:41:230
288299945753,345cyclictest24227-21ssh21:41:510
288299945632,364cyclictest7713-21sshd19:36:400
288299945555,224cyclictest31708-21gzip23:10:400
288299945365,375cyclictest5226-21sshd23:23:350
28829994523,435cyclictest17085-21ssh22:38:100
288299945151,341cyclictest584-21kworker/u2:122:02:300
28829994513,434cyclictest25724-21ssh00:09:100
288299944553,333cyclictest16585-19udisks-part-id20:01:010
288299944452,378cyclictest4154-21runrttasks19:28:010
28829994441,384cyclictest15527-21sendmail-msp20:00:040
288299944372,88cyclictest13-21rcuc/021:29:300
288299944364,366cyclictest12484-21ssh21:16:220
288299944252,320cyclictest1308-21grep19:20:340
28829994410,381cyclictest27762-21seq20:31:000
28829994370,424cyclictest3050irq/9-acpi00:02:390
288299943272,347cyclictest351950irq/10-yenta20:23:380
288299943268,364cyclictest0-21swapper19:50:520
288299943071,300cyclictest9039-21diskmemload21:56:270
288299942967,88cyclictest11280-21ssh21:14:540
28829994232,421cyclictest0-21swapper20:54:070
288299942156,351cyclictest9039-21diskmemload00:10:320
288299942053,352cyclictest7651-21cpu21:05:260
288299941468,346cyclictest0-21swapper20:05:300
288299941352,347cyclictest7341-21cat22:16:130
288299940955,350cyclictest1468-21seq20:49:380
288299940950,346cyclictest351950irq/10-yenta20:35:410
288299940153,336cyclictest7145-21sshd21:04:410
288299939354,339cyclictest0-21swapper19:49:510
288299937852,313cyclictest8705-21awk19:40:310
288299936329,275cyclictest5125-21sed19:30:340
288299936128,318cyclictest31042-21cat20:40:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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