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2026-06-28 - 17:12
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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 Sun Jun 28, 2026 12:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
155929983404492,3838cyclictest2451-21kworker/0:107:16:080
155929979873968,3977cyclictest2451-21kworker/0:107:14:320
152812781185,178sleep00-21swapper07:08:040
155929949662,373cyclictest28870-21awk10:20:410
155929949142,389cyclictest11-21ksoftirqd/012:41:270
155929947232,0cyclictest32536-21ssh11:40:030
155929946632,434cyclictest0-21swapper09:40:300
155929946231,417cyclictest22936-21sh12:29:140
155929945732,364cyclictest29571-21ssh11:32:000
155929945571,372cyclictest13-21rcuc/010:40:250
155929945533,361cyclictest555-21sh10:30:230
155929945531,362cyclictest26305-21ssh12:35:550
155929945434,359cyclictest6350-21mailstats08:10:130
155929945433,407cyclictest1394-21fschecks_time11:41:260
155929945431,362cyclictest4924-21runrttasks10:09:530
155929945032,349cyclictest14076-21ssh12:10:050
155929944832,356cyclictest351950irq/10-yenta11:48:220
155929944762,204cyclictest13-21rcuc/007:50:300
155929944567,88cyclictest11-21ksoftirqd/008:35:180
155929944533,352cyclictest17928-21ssh09:56:230
155929944533,351cyclictest4924-21runrttasks10:57:320
155929944531,354cyclictest30108-21ssh09:12:230
155929944467,364cyclictest11971-21munin-node08:25:160
155929944367,363cyclictest13-21rcuc/008:05:260
155929944329,353cyclictest8614-21ssh11:56:460
155929944032,348cyclictest20145-21ssh12:21:580
155929943931,394cyclictest28227-21sendmail-msp10:20:040
155929943931,348cyclictest4924-21runrttasks09:28:150
155929943733,335cyclictest5020-21ssh11:50:180
155929943589,346cyclictest0-21swapper10:53:320
155929943549,325cyclictest11742-21latency_hist12:05:030
155929943169,311cyclictest16263-21cron12:15:010
155929943158,360cyclictest16643-21munin-node11:06:120
155929943032,337cyclictest4224-21lldpd09:51:580
155929942531,324cyclictest30163-21unixbench-2d07:45:560
155929942260,348cyclictest7493-21ssh10:45:140
155929942131,330cyclictest388-21ssh09:19:280
155929941838,367cyclictest14813-21fschecks_time08:31:020
155929941741,87cyclictest1597-21ssh09:21:060
155929941231,367cyclictest21546-21df_inode08:50:270
155929941231,322cyclictest11004-21kworker/u2:012:19:520
155929941231,320cyclictest12397-21ssh09:45:200
155929941149,87cyclictest19581-21df_inode10:00:370
155929941149,362cyclictest0-21swapper10:10:070
155929941132,318cyclictest4924-21runrttasks10:35:080
155929940822,87cyclictest9569-21apt-get08:17:170
155929940534,311cyclictest26098-21seq07:35:360
155929940434,357cyclictest351950irq/10-yenta09:33:050
155929940342,302cyclictest0-21swapper11:02:010
155929940255,173cyclictest32182-21runrttasks10:27:230
155929940253,288cyclictest9941-21latency_hist09:40:050
155929940252,291cyclictest3899-31copy08:03:520
155929940252,167cyclictest24017-19udisks-part-id08:56:010
155929940233,355cyclictest27775-21ssh11:29:140
155929940227,313cyclictest22104-21kernelversion11:16:050
155929939650,287cyclictest20742-21sshd08:47:400
155929939529,352cyclictest28403-21diskmemload11:11:450
155929939353,280cyclictest24456-21awk11:21:090
155929938931,298cyclictest25442-21ssh12:35:040
155929938432,330cyclictest4305-21snmpd07:41:380
155929938429,341cyclictest20464-21awk07:20:320
155929938231,291cyclictest18531-21perl08:41:030
155929938131,350cyclictest0-21swapper08:21:270
155929937929,289cyclictest22457-21cut07:25:390
155929937631,345cyclictest0-21swapper09:02:220
155929937528,285cyclictest1046-21iostat07:55:350
155929937328,285cyclictest27526-21cat09:05:490
155929936431,264cyclictest236182chrt07:30:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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