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2026-09-11 - 23:42
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackaslot8.osadl.org (updated Fri Sep 11, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
88962330300,20sleep20-21swapper/207:07:572
88692292261,21sleep10-21swapper/107:07:351
88992268239,19sleep00-21swapper/007:07:590
89902265234,20sleep30-21swapper/307:08:533
325772620,0sleep20-21swapper/209:30:142
232152610,1sleep30-21swapper/311:40:333
115252610,0sleep30-21swapper/311:34:213
256262590,0sleep30-21swapper/311:23:043
280112560,0sleep30-21swapper/312:03:363
217752550,0sleep228-21ksoftirqd/210:41:312
125482200,0sleep30-21swapper/311:54:303
117542190,0sleep10-21swapper/110:35:211
3062180,0sleep30-21swapper/310:48:363
257432170,0sleep30-21swapper/309:25:193
199342160,0sleep10-21swapper/109:41:341
282712150,0sleep20-21swapper/212:23:052
151372150,0sleep00-21swapper/009:39:170
311192140,0sleep20-21swapper/211:06:292
259862140,0sleep00-21swapper/009:45:190
265612110,0sleep30-21swapper/312:21:463
95592100,3sleep228-21ksoftirqd/208:20:152
11195290,0sleep30-21swapper/309:16:463
91969983,3cyclictest275-21systemd-journal12:17:232
91929982,3cyclictest21530-21munin-run12:00:011
91929980,7cyclictest5275-21ssh11:50:091
91929980,5cyclictest28177-21awk11:25:001
18670280,0sleep30-21swapper/310:00:193
92009974,2cyclictest7942-21sshd10:14:093
92009973,1cyclictest0-21swapper/310:55:363
92009972,4cyclictest10749-21fschecks_count10:35:143
91969975,1cyclictest7332-21apt-get12:30:172
91969970,1cyclictest31386-21sh10:28:042
91969970,1cyclictest16215-21ssh10:19:092
91929974,2cyclictest275-21systemd-journal08:41:241
91929973,3cyclictest9166-21snmpd10:55:251
91929973,3cyclictest9166-21snmpd10:00:201
91929973,3cyclictest9166-21snmpd08:49:421
91929972,3cyclictest275-21systemd-journal09:05:111
91929972,3cyclictest10857-21ls08:25:001
91899974,2cyclictest504-21dbus-daemon08:30:190
91899973,3cyclictest504-21dbus-daemon10:20:010
91899973,3cyclictest275-21systemd-journal10:32:300
91899973,3cyclictest17003-21diskstats09:40:130
91899973,1cyclictest0-21swapper/012:32:140
91899973,1cyclictest0-21swapper/012:17:350
91899972,3cyclictest4871-21munin-run11:50:010
32055270,0sleep20-21swapper/209:10:122
19593270,0sleep20-21swapper/209:41:192
92009966,0cyclictest0-21swapper/311:16:023
92009966,0cyclictest0-21swapper/311:10:233
92009966,0cyclictest0-21swapper/309:50:023
92009964,2cyclictest34-21ksoftirqd/307:55:003
92009963,2cyclictest9166-21snmpd10:50:583
92009963,2cyclictest9166-21snmpd09:00:123
92009963,2cyclictest9024-21ssh12:11:093
92009963,2cyclictest8972-21sh10:34:243
92009963,2cyclictest504-21dbus-daemon08:55:373
92009963,2cyclictest32566-21apt-get09:30:143
92009963,2cyclictest31266-21dpkg12:25:103
92009963,2cyclictest20155-21switchtime07:30:193
92009963,2cyclictest19378-21seq09:41:083
92009963,2cyclictest18743-21missed_timers10:20:163
92009963,2cyclictest15654-21sendmail_mailtr07:20:183
92009963,2cyclictest14379-21cat11:55:143
92009963,2cyclictest13717-21latency11:35:163
92009963,2cyclictest1341-21ssh09:10:373
92009963,2cyclictest10419-21grep07:10:193
92009963,1cyclictest0-21swapper/311:45:053
92009963,1cyclictest0-21swapper/310:40:193
92009962,3cyclictest9831-21cat10:15:123
92009962,3cyclictest9166-21snmpd12:36:453
92009962,3cyclictest9166-21snmpd12:30:573
92009962,3cyclictest9166-21snmpd09:58:473
92009962,3cyclictest9166-21snmpd09:21:273
92009962,3cyclictest9166-21snmpd08:05:283
92009962,3cyclictest9166-21snmpd07:38:343
92009962,3cyclictest7670-21awk08:15:173
92009962,3cyclictest29789-21awk11:25:173
92009962,3cyclictest275-21systemd-journal10:29:073
92009962,3cyclictest275-21systemd-journal08:31:213
92009962,3cyclictest275-21systemd-journal08:00:253
92009962,3cyclictest26983-21expr07:45:173
92009962,3cyclictest25234-21expr09:45:143
92009962,3cyclictest21627-11brltty08:46:263
92009962,3cyclictest17837-21find07:25:193
92009962,3cyclictest15257-21cat12:15:143
92009962,3cyclictest11183-21cat08:25:123
92009962,1cyclictest0-21swapper/312:08:423
92009961,3cyclictest275-21systemd-journal10:08:453
92009960,4cyclictest31186-21diskmemload11:02:383
92009960,1cyclictest491-21systemd-logind07:17:243
92009960,0cyclictest0-21swapper/309:35:133
91969963,2cyclictest9500-21ssh09:15:292
91969963,2cyclictest9166-21snmpd11:12:372
91969963,2cyclictest9166-21snmpd09:27:062
91969963,2cyclictest9166-21snmpd07:59:522
91969963,2cyclictest663-21runrttasks11:20:122
91969963,2cyclictest663-21runrttasks09:45:192
91969963,2cyclictest4835-21sh10:11:442
91969963,2cyclictest3084-11brltty10:02:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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