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2026-03-10 - 10:46
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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 Tue Mar 10, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
308222327298,19sleep20-21swapper/219:07:422
309152274243,20sleep10-21swapper/119:08:541
309142270238,21sleep00-21swapper/019:08:530
290252262229,22sleep30-21swapper/319:05:063
93252590,0sleep30-21swapper/321:40:593
62482580,0sleep3331rcuc/300:34:023
171612580,0sleep00-21swapper/021:45:360
159552560,0sleep20-21swapper/221:25:202
100502560,0sleep10-21swapper/122:40:031
245372180,0sleep20-21swapper/200:25:162
152102180,0sleep30-21swapper/320:55:133
234032170,0sleep10-21swapper/121:10:221
133282150,0sleep00-21swapper/000:18:520
133282150,0sleep00-21swapper/000:18:520
243282140,0sleep10-21swapper/122:48:241
277092130,0sleep10-21swapper/123:48:461
70932120,0sleep00-21swapper/019:25:140
229702120,0sleep20-21swapper/223:25:582
28392110,0sleep20-21swapper/223:33:582
135292110,0sleep30-21swapper/322:03:333
83652100,0sleep10-21swapper/123:36:491
31969290,0sleep00-21swapper/019:10:170
22568290,0chrt0-21swapper/021:30:100
7407280,0sleep00-21swapper/000:34:540
311139980,7cyclictest22365-21hddtemp_smartct21:10:153
311099982,3cyclictest16923-21munin-run22:25:022
311099982,3cyclictest16923-21munin-run22:25:012
311049985,2cyclictest21065-21hddtemp_smartct23:25:141
22602280,0sleep30-21swapper/323:06:203
20437280,0sleep10-21swapper/100:22:571
9100270,0sleep30-21swapper/300:35:183
311139973,3cyclictest275-21systemd-journal23:12:343
311139973,1cyclictest0-21swapper/322:16:133
311099976,1cyclictest28-21ksoftirqd/220:30:022
311099975,1cyclictest8710-21sh23:56:212
311099973,3cyclictest275-21systemd-journal19:31:092
311049976,1cyclictest22-21ksoftirqd/119:20:011
311049972,3cyclictest275-21systemd-journal21:35:001
311049970,5cyclictest275-21systemd-journal23:15:011
311019976,1cyclictest21195-21diskmemload21:37:240
311019976,1cyclictest12-21ksoftirqd/023:40:000
311019974,2cyclictest504-21dbus-daemon23:11:320
311019973,3cyclictest11896-21sshd22:02:190
26453270,0sleep20-21swapper/223:47:472
16950270,0sleep10-21swapper/100:01:031
12471270,1sleep00-21swapper/021:23:570
311139966,0cyclictest12601-21ssh23:00:203
311139963,2cyclictest7187-21timerandwakeup20:35:213
311139963,2cyclictest658-21snmpd21:32:203
311139963,2cyclictest658-21snmpd19:47:113
311139963,2cyclictest32126-21sh21:15:353
311139963,2cyclictest31057-21ssh00:10:073
311139963,2cyclictest29260-21ssh21:53:323
311139963,2cyclictest275-21systemd-journal22:41:323
311139963,2cyclictest24150-21sh22:48:163
311139963,2cyclictest22424-21sh21:49:423
311139963,2cyclictest20283-21ssh23:25:053
311139963,2cyclictest19851-21ssh21:28:153
311139963,2cyclictest1955-21ssh23:33:173
311139963,2cyclictest19071-21sh00:02:413
311139963,2cyclictest1163-21memory19:15:013
311139963,1cyclictest0-21swapper/300:27:113
311139962,3cyclictest7752-21cat00:15:153
311139962,3cyclictest7752-21cat00:15:153
311139962,3cyclictest7712-21vmstat21:20:193
311139962,3cyclictest658-21snmpd23:16:203
311139962,3cyclictest658-21snmpd22:58:113
311139962,3cyclictest658-21snmpd22:25:223
311139962,3cyclictest658-21snmpd22:11:513
311139962,3cyclictest658-21snmpd22:05:273
311139962,3cyclictest658-21snmpd21:03:463
311139962,3cyclictest658-21snmpd20:33:453
311139962,3cyclictest658-21snmpd20:18:453
311139962,3cyclictest658-21snmpd19:44:363
311139962,3cyclictest658-21snmpd19:25:053
311139962,3cyclictest4931-21ls19:20:143
311139962,3cyclictest304-21systemd-udevd20:41:363
311139962,3cyclictest21744-21sshd19:59:143
311139962,3cyclictest13390-21cat20:50:163
311139962,3cyclictest12264-21cat19:35:193
311139962,3cyclictest11321-21sed20:45:193
311139962,1cyclictest0-21swapper/323:50:013
311139962,1cyclictest0-21swapper/323:42:553
311139962,1cyclictest0-21swapper/322:38:223
311139962,1cyclictest0-21swapper/321:59:243
311139961,3cyclictest275-21systemd-journal22:21:553
311139961,3cyclictest275-21systemd-journal22:21:553
311139960,5cyclictest22830-21/usr/sbin/munin00:05:193
311139960,5cyclictest21581-21ssh23:45:103
311139960,0cyclictest0-21swapper/323:21:373
311099965,1cyclictest28-21ksoftirqd/220:35:022
311099963,2cyclictest8604-21grep00:35:132
311099963,2cyclictest658-21snmpd22:46:042
311099963,2cyclictest658-21snmpd21:54:392
311099963,2cyclictest658-21snmpd21:01:012
311099963,2cyclictest504-21dbus-daemon19:10:392
311099963,2cyclictest504-21dbus-daemon00:30:552
311099963,2cyclictest31064-21ssh00:10:072
311099963,2cyclictest30716-21sh22:51:552
311099963,2cyclictest25165-21head22:10:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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