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2026-06-30 - 07:43
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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 Jun 30, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23852324295,19sleep20-21swapper/219:08:502
21192320290,20sleep10-21swapper/119:05:391
22122278214,22sleep30-21swapper/319:06:503
22782258228,20sleep00-21swapper/019:07:270
212782650,0sleep30-21swapper/323:25:163
75172600,0sleep20-21swapper/222:37:152
176812580,0sleep10-21swapper/121:45:131
231272560,0sleep10-21swapper/122:46:471
138342560,0sleep00-21swapper/022:02:010
87352200,0sleep30-21swapper/300:16:463
14232190,0sleep00-21swapper/023:13:250
164252180,0sleep20-21swapper/221:44:262
34342170,0sleep10-21swapper/122:15:151
287392150,0sleep20-21swapper/222:10:362
259099150,11cyclictest32228-21ssh22:52:303
242812150,0sleep30-21swapper/322:08:463
259099143,8cyclictest15139-21rm23:21:173
259099140,10cyclictest3059-21ssh00:13:443
259099140,10cyclictest17242-21sh22:24:033
259099132,8cyclictest8377-21ssh21:59:123
259099132,8cyclictest4861-21sh00:34:513
259099131,9cyclictest24577-21diskmemload21:15:503
259099130,9cyclictest25637-21ssh00:27:093
259099130,9cyclictest15437-21ssh21:43:383
259099130,8cyclictest22931-21unixbench_multi00:05:263
259099130,7cyclictest4005-21hddtemp_smartct22:35:143
259099130,12cyclictest0-21swapper/321:50:133
259099130,11cyclictest12408-21awk20:40:163
259099130,10cyclictest9679-21ssh00:36:593
259099130,10cyclictest8325-21ssh23:37:063
259099130,10cyclictest7430-21taskset21:38:473
259099130,10cyclictest6693-21ssh23:55:303
259099130,10cyclictest30726-21sh23:30:423
259099130,10cyclictest28865-21sed20:05:153
259099130,10cyclictest24548-21sh21:29:413
259099130,10cyclictest24115-21basename19:55:143
259099130,10cyclictest23380-21ssh23:46:013
259099130,10cyclictest22988-21ssh21:48:083
259099130,10cyclictest17650-21ssh23:42:563
259099130,10cyclictest13540-21ssh22:40:423
259099120,9cyclictest6248-21ssh23:15:453
259099120,9cyclictest4264-21ssh22:15:223
259099120,9cyclictest32381-21sh23:51:393
259099120,9cyclictest31840-21ssh22:32:213
259099120,9cyclictest31173-21ssh22:12:293
259099120,9cyclictest30194-21ssh23:10:353
259099120,9cyclictest29147-21ssh21:31:533
259099120,9cyclictest24935-21ssh21:10:073
259099120,9cyclictest23063-21ssh23:06:253
259099120,9cyclictest19418-21sh22:45:073
259099120,9cyclictest18968-21ssh22:25:123
259099120,9cyclictest17509-21ssh23:03:283
259099120,9cyclictest16155-21chrt19:35:293
259099120,9cyclictest15620-21ssh00:01:013
259099120,9cyclictest15478-21ssh00:20:373
259099120,9cyclictest12803-21ssh22:01:143
259099120,9cyclictest11473-21ssh21:20:523
259099120,7cyclictest3730-21cstates22:55:133
259099120,7cyclictest3246-21cut20:20:183
259099110,9cyclictest8815-21chrt20:33:073
259099110,8cyclictest1-21systemd19:42:283
259099110,6cyclictest16445-21grep20:50:153
259099110,6cyclictest11548-21taskset19:25:203
259099100,8cyclictest275-21systemd-journal20:49:593
259099100,6cyclictest19296-21cat19:45:133
259099100,6cyclictest14175-21taskset19:33:253
259099100,5cyclictest0-21swapper/320:35:153
25909993,5cyclictest27022-21timerandwakeup20:00:203
25909991,7cyclictest501-21in:imuxsock19:55:013
25909991,7cyclictest501-21in:imuxsock19:55:003
25909990,8cyclictest9210-21sed19:20:213
25909990,8cyclictest5404-21idleruntime20:25:163
25909990,8cyclictest4901-21munin-node19:15:013
25909990,8cyclictest22349-21sh21:05:003
25909990,8cyclictest18720-21tail20:55:143
25909990,8cyclictest1242-21ntpq20:15:153
25909990,8cyclictest0-21swapper/320:10:123
25909990,8cyclictest0-21swapper/319:10:133
25869997,1cyclictest28-21ksoftirqd/222:05:022
25829997,1cyclictest22-21ksoftirqd/121:00:001
25909980,7cyclictest22588-21/usr/sbin/munin21:05:113
25869980,7cyclictest23438-21sh00:05:442
25799984,3cyclictest275-21systemd-journal23:52:270
25799983,3cyclictest5073-21dump-pmu-power00:34:590
20251280,0sleep10-21swapper/100:24:211
27923270,0sleep00-21swapper/022:50:140
25869973,3cyclictest658-21snmpd21:18:592
25869971,3cyclictest19085-21munin-run22:45:012
25829976,1cyclictest22-21ksoftirqd/119:15:011
25829975,1cyclictest22-21ksoftirqd/100:35:001
25829974,2cyclictest275-21systemd-journal22:30:011
25829973,3cyclictest658-21snmpd23:22:011
25829973,3cyclictest658-21snmpd21:41:001
25829973,3cyclictest504-21dbus-daemon21:51:531
25829973,3cyclictest304-21systemd-udevd00:27:121
25829973,1cyclictest0-21swapper/122:14:181
25829973,1cyclictest0-21swapper/121:23:391
25829970,6cyclictest10950-21apt22:40:011
25829970,4cyclictest11222-21munin-run20:40:001
25829970,3cyclictest24576-21basename21:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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