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2026-09-02 - 17:19
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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 the 100 highest latencies:
System rack1slot1.osadl.org (updated Wed Sep 02, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1993425090,7sleep00-21swapper/007:05:220
204112232160,58sleep20-21swapper/207:06:172
206932209158,25sleep30-21swapper/307:09:573
203552198159,26sleep10-21swapper/107:05:321
293442730,0sleep10-21swapper/111:50:011
214532690,0sleep10-21swapper/110:05:151
44732680,0sleep00-21swapper/012:00:130
114432540,0sleep10-21swapper/110:37:071
75612510,1sleep22078599cyclictest10:30:472
86032200,1sleep08608-21cpuspeed_turbos07:50:130
31132190,0sleep00-21swapper/010:25:160
144132190,0sleep30-21swapper/311:28:043
4242130,0sleep20-21swapper/207:30:212
2077399132,5cyclictest19927-21perf08:15:000
232402120,0sleep30-21swapper/310:55:033
2077399123,4cyclictest1644-21/usr/sbin/munin08:45:000
94592100,0sleep00-21swapper/012:05:510
302912100,0sleep013853-21diskmemload10:18:250
2078599109,1cyclictest28-21ksoftirqd/210:29:552
2078599108,1cyclictest28-21ksoftirqd/212:13:042
2078599100,1cyclictest17565-21/usr/sbin/munin09:15:142
2078599100,0cyclictest0-21swapper/210:42:492
20781991010,0cyclictest0-21swapper/111:30:111
207869992,4cyclictest240-21systemd-journal09:49:543
207859999,0cyclictest0-21swapper/208:45:152
207859997,1cyclictest28-21ksoftirqd/211:35:002
207819990,5cyclictest0-21swapper/108:05:121
207739993,5cyclictest9362-21/usr/sbin/munin09:00:210
207739993,3cyclictest1040-21perf07:35:000
207869986,1cyclictest11301-21snmpd08:12:543
207869986,1cyclictest11301-21snmpd07:56:263
207869986,1cyclictest11301-21snmpd07:56:263
207869986,1cyclictest11301-21snmpd07:46:223
207869986,1cyclictest11301-21snmpd07:37:223
207869982,5cyclictest561-21nscd12:26:003
207869980,1cyclictest0-21swapper/312:34:163
207859986,1cyclictest61650irq/122-eno111:12:032
207859986,1cyclictest61650irq/122-eno110:49:112
207859986,1cyclictest61650irq/122-eno109:55:162
207859986,1cyclictest61650irq/122-eno109:50:212
207859986,1cyclictest61650irq/122-eno109:38:122
207859986,1cyclictest28-21ksoftirqd/211:03:072
207859986,1cyclictest16201-21cat11:30:152
207859986,1cyclictest11301-21snmpd09:12:442
207859984,2cyclictest240-21systemd-journal09:24:552
207859984,2cyclictest13853-21diskmemload10:55:132
207859984,1cyclictest240-21systemd-journal12:07:582
207859984,1cyclictest13853-21diskmemload10:00:112
207859983,2cyclictest240-21systemd-journal07:55:012
207859983,2cyclictest240-21systemd-journal07:55:012
207739983,4cyclictest0-21swapper/011:40:120
207739983,3cyclictest20731-21apt-get07:10:010
207739983,1cyclictest22127-21sh12:25:140
207739982,5cyclictest12327-21diskstats11:25:140
207739981,3cyclictest17332-21grep09:15:000
207739980,4cyclictest8121-21perf07:50:000
207739980,1cyclictest240-21systemd-journal10:15:000
207739980,1cyclictest11702-21perl12:10:140
207739980,1cyclictest1051-21munin-run11:10:000
7569270,0sleep10-21swapper/109:45:171
207869976,1cyclictest10034-21cat10:35:153
207869975,1cyclictest14541-21ssh10:40:463
207869975,1cyclictest11301-21snmpd09:55:063
207869975,1cyclictest11301-21snmpd09:50:303
207869975,1cyclictest11301-21snmpd09:15:023
207869975,1cyclictest11301-21snmpd09:00:583
207869975,1cyclictest11301-21snmpd08:53:583
207869973,2cyclictest240-21systemd-journal11:09:553
207869970,3cyclictest0-21swapper/309:30:273
207869970,2cyclictest0-21swapper/312:07:563
207869970,0cyclictest0-21swapper/311:16:003
207859976,1cyclictest61650irq/122-eno112:25:142
207859976,1cyclictest61650irq/122-eno112:02:382
207859976,1cyclictest61650irq/122-eno111:55:112
207859976,1cyclictest61650irq/122-eno109:48:082
207859976,1cyclictest61650irq/122-eno109:30:172
207859976,1cyclictest61650irq/122-eno107:40:122
207859976,1cyclictest11301-21snmpd12:33:192
207859976,0cyclictest0-21swapper/211:45:202
207859975,1cyclictest61650irq/122-eno112:18:202
207859975,1cyclictest61650irq/122-eno109:40:102
207859975,1cyclictest61650irq/122-eno109:05:142
207859975,1cyclictest61650irq/122-eno108:44:592
207859975,1cyclictest61650irq/122-eno108:20:202
207859975,1cyclictest61650irq/122-eno108:10:152
207859975,1cyclictest28-21ksoftirqd/212:20:202
207859975,0cyclictest0-21swapper/211:44:572
207859973,3cyclictest0-21swapper/211:50:172
207859973,1cyclictest240-21systemd-journal10:39:592
207859972,2cyclictest25019-21telnet09:25:132
207859972,2cyclictest12730-21runrttasks11:25:162
207859971,5cyclictest0-21swapper/208:50:042
207859970,6cyclictest29749-21grep12:35:192
207859970,6cyclictest29749-21grep12:35:182
207859970,6cyclictest22547-21ssh10:05:492
207859970,6cyclictest0-21swapper/210:19:102
207859970,2cyclictest0-21swapper/208:35:132
207859970,1cyclictest0-21swapper/207:19:042
207819971,6cyclictest0-21swapper/108:52:071
207819971,4cyclictest0-21swapper/111:35:531
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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