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2026-05-03 - 09:54
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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 Sun May 03, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
141442308283,16sleep20-21swapper/219:06:192
142472278250,16sleep10-21swapper/119:07:231
143002263232,20sleep30-21swapper/319:08:043
141152258225,20sleep00-21swapper/019:05:570
249522610,0sleep10-21swapper/123:38:261
142312580,0sleep10-21swapper/121:54:441
43292570,0sleep20-21swapper/219:55:162
95722560,0sleep30-21swapper/300:27:333
45142540,0sleep00-21swapper/023:06:210
261692460,0sleep00-21swapper/023:58:480
150642400,0sleep10-21swapper/123:13:071
43442150,0sleep10-21swapper/122:46:451
272512140,0sleep30-21swapper/323:40:013
1456399114,2cyclictest275-21systemd-journal20:15:062
1456399113,3cyclictest275-21systemd-journal21:09:062
1456399112,3cyclictest10218-21mktemp23:30:012
1456399110,3cyclictest275-21systemd-journal21:00:012
95252100,0sleep20-21swapper/223:48:442
1456399102,3cyclictest658-21snmpd22:05:342
127512100,0chrt0-21swapper/300:10:113
25115290,0sleep00-21swapper/021:40:490
145639996,3cyclictest0-21swapper/222:20:132
145639993,2cyclictest4703-21ssh22:47:022
145639993,1cyclictest15354-21cron22:15:012
145639992,2cyclictest9015-21ssh00:07:432
145639992,2cyclictest28938-21ssh21:24:362
145639992,2cyclictest12567-21ssh21:14:522
145639992,2cyclictest11538-21cat23:30:132
145639992,2cyclictest0-21swapper/200:17:562
145639991,3cyclictest658-21snmpd23:40:542
145639990,9cyclictest0-21swapper/223:55:152
145639990,3cyclictest491-21systemd-logind21:27:132
145639990,3cyclictest275-21systemd-journal22:57:432
145639990,3cyclictest275-21systemd-journal22:28:072
145639990,3cyclictest24496-21sh23:19:002
145639990,3cyclictest19160-21ssh23:35:112
5519280,0sleep30-21swapper/323:07:093
5006280,0sleep20-21swapper/200:25:122
26185280,0sleep10-21swapper/121:41:371
145639982,2cyclictest658-21snmpd00:31:502
145639982,2cyclictest26568-21tail22:40:192
145639982,2cyclictest23858-21ssh00:35:552
145639982,2cyclictest18960-21ssh22:16:242
145639982,2cyclictest16432-21chrt19:11:362
145639982,2cyclictest0-21swapper/222:33:112
145639982,1cyclictest5669-21sh23:07:162
145639982,1cyclictest30769-21cat00:20:202
145639982,1cyclictest27304-21rm23:20:162
145639982,1cyclictest17356-21ssh21:55:442
145639982,1cyclictest0-21swapper/223:53:532
145639981,3cyclictest658-21snmpd19:52:032
145639981,2cyclictest11019-21cut20:10:152
145639980,3cyclictest32291-11brltty22:00:362
145639980,2cyclictest275-21systemd-journal21:17:182
145639980,2cyclictest275-21systemd-journal20:47:222
145609984,2cyclictest275-21systemd-journal20:12:481
145579983,3cyclictest275-21systemd-journal22:01:050
145689975,1cyclictest34-21ksoftirqd/319:15:023
145689974,2cyclictest275-21systemd-journal00:17:553
145689973,3cyclictest658-21snmpd19:49:083
145689973,2cyclictest304-21systemd-udevd20:28:363
145689973,1cyclictest0-21swapper/300:31:223
145639973,3cyclictest504-21dbus-daemon20:37:522
145639972,1cyclictest16500-21sh21:35:322
145639971,2cyclictest658-21snmpd20:20:242
145639970,3cyclictest2902-21sh00:04:232
145609976,1cyclictest22-21ksoftirqd/100:00:001
145609973,3cyclictest8575-21ntpq22:10:161
145609973,3cyclictest31102-21memory21:25:141
145609970,6cyclictest27291-21ssh00:38:351
145609970,1cyclictest2808-21sh00:04:191
145579975,2cyclictest12-21ksoftirqd/019:55:010
145579975,1cyclictest12-21ksoftirqd/023:40:010
145579973,3cyclictest275-21systemd-journal23:02:420
145579972,3cyclictest275-21systemd-journal23:23:330
10032270,0sleep30-21swapper/323:30:003
3763260,0sleep10-21swapper/122:07:291
145689966,0cyclictest4356-21diskmemload22:14:043
145689966,0cyclictest0-21swapper/321:56:513
145689966,0cyclictest0-21swapper/321:43:513
145689964,1cyclictest27329-21memory19:35:163
145689964,1cyclictest24795-21gltestperf22:20:163
145689963,2cyclictest658-21snmpd20:01:443
145689963,2cyclictest3337-21sh22:26:323
145689963,2cyclictest32123-21diskstats22:05:133
145689963,2cyclictest30581-21ls00:20:193
145689963,2cyclictest17937-21/usr/sbin/munin23:15:183
145689963,2cyclictest16781-21cpuspeed_turbos22:35:133
145689963,2cyclictest15375-21cat21:35:173
145689963,2cyclictest1197-21diskstats22:45:133
145689963,2cyclictest10603-21sh21:32:253
145689962,3cyclictest658-21snmpd23:21:213
145689962,3cyclictest658-21snmpd23:13:303
145689962,3cyclictest658-21snmpd22:50:173
145689962,3cyclictest658-21snmpd22:00:123
145689962,3cyclictest658-21snmpd21:01:333
145689962,3cyclictest658-21snmpd20:59:303
145689962,3cyclictest658-21snmpd20:52:243
145689962,3cyclictest658-21snmpd20:48:273
145689962,3cyclictest658-21snmpd19:42:583
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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