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2026-03-07 - 07:35
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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 rack1slot2.osadl.org (updated Fri Mar 06, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2259325041,0sleep30-21swapper/307:14:593
2252023725,0sleep00-21swapper/007:14:030
2256323626,0sleep10-21swapper/107:14:361
2263623526,0sleep20-21swapper/207:15:262
22833991414,0cyclictest3524-21snmpd08:59:100
228359970,0cyclictest16824-21kthreadcore10:37:172
4160,0ktimersoftd/00-21swapper/010:43:040
339960,0migration/35487-21sh12:23:093
339960,0migration/317166-21kthreadcore10:57:183
339960,0migration/315103-21munin-node10:17:173
339960,0migration/314765-21sh11:15:363
339960,0migration/314372-21sh09:59:493
339960,0migration/312831-21sh09:41:423
29805060,0irq/28-eth0-rx-19574-21crond08:21:573
27160,0ktimersoftd/20-21swapper/210:43:042
149960,0migration/09537-21sh11:47:390
149960,0migration/06049-21sh12:24:440
149960,0migration/018358-21sh09:24:460
339950,0migration/34569-21runrttasks12:06:513
339950,0migration/33454-21kthreadcore11:27:163
339950,0migration/3339-21latency08:27:153
339950,0migration/33374-21irqcore09:17:143
339950,0migration/330973-21kthreadcore07:42:153
339950,0migration/330200-21taskset11:06:373
339950,0migration/329000-21kthreadcore11:22:163
339950,0migration/327873-21kthreadcore08:47:143
339950,0migration/327856-21kthreadcore08:02:143
339950,0migration/327375-21if_eth110:27:133
339950,0migration/322864-21fschecks_count12:17:103
339950,0migration/322079-21cpuspeed_turbos09:47:103
339950,0migration/321738-21munin-node10:02:193
339950,0migration/321463-21kthreadcore07:37:153
339950,0migration/320220-21cpuspeed_turbos11:57:103
339950,0migration/319403-21taskset11:56:103
339950,0migration/316404-21fschecks_count12:32:123
339950,0migration/313743-21kthreadcore10:37:163
339950,0migration/313363-21fschecks_count09:02:103
339950,0migration/311839-21timerwakeupswit08:12:223
329950,0watchdog/39603-21sh10:33:213
329950,0watchdog/36691-21missed_timers12:42:173
329950,0watchdog/331580-21perl08:52:123
329950,0watchdog/314691-21memory07:52:163
329950,0watchdog/310493-21runrttasks11:50:213
329950,0watchdog/30-21swapper/310:42:173
329950,0watchdog/30-21swapper/309:42:173
29815050,0irq/29-eth0-tx-5474-21fschecks_count12:07:122
29815050,0irq/29-eth0-tx-16293-21munin-node08:42:180
29815050,0irq/29-eth0-tx-16050-21munin-node07:57:170
29805050,0irq/28-eth0-rx-6711-21python10:12:213
29805050,0irq/28-eth0-rx-0-21swapper/312:39:353
29805050,0irq/28-eth0-rx-0-21swapper/311:37:123
29805050,0irq/28-eth0-rx-0-21swapper/311:34:383
29805050,0irq/28-eth0-rx-0-21swapper/311:34:383
29805050,0irq/28-eth0-rx-0-21swapper/311:09:183
29805050,0irq/28-eth0-rx-0-21swapper/310:54:493
29805050,0irq/28-eth0-rx-0-21swapper/310:47:143
29805050,0irq/28-eth0-rx-0-21swapper/309:32:043
29805050,0irq/28-eth0-rx-0-21swapper/308:42:153
27150,0ktimersoftd/20-21swapper/212:44:342
228359955,0cyclictest27005-21dump-pmu-power09:11:572
228359955,0cyclictest0-21swapper/210:52:152
228359955,0cyclictest0-21swapper/207:42:172
228359950,0cyclictest0-21swapper/210:23:152
228349955,0cyclictest0-21swapper/112:07:311
228349955,0cyclictest0-21swapper/109:19:081
228349950,0cyclictest0-21swapper/111:32:121
228349950,0cyclictest0-21swapper/111:32:121
228349950,0cyclictest0-21swapper/109:53:021
228349950,0cyclictest0-21swapper/108:11:591
228339955,0cyclictest0-21swapper/011:56:240
228339955,0cyclictest0-21swapper/009:52:200
228339950,0cyclictest0-21swapper/010:18:580
228339950,0cyclictest0-21swapper/009:11:580
19150,0ktimersoftd/10-21swapper/110:43:041
179950,0migration/18569-21irqcore12:27:141
179950,0migration/16987-21latency_hist12:26:581
179950,0migration/1495-21munin-node07:42:201
179950,0migration/14660-21munin-node11:07:211
179950,0migration/14482-21latency_hist10:51:581
179950,0migration/13926-21kthreadcore12:42:161
179950,0migration/131105-21kthreadcore09:12:161
179950,0migration/129261-21taskset11:03:591
179950,0migration/126772-21sh09:29:011
179950,0migration/126538-21latency_hist07:41:571
179950,0migration/124226-21sh11:22:101
179950,0migration/122148-21sh10:02:291
179950,0migration/122003-21kthreadcore11:57:151
179950,0migration/118771-21sh10:40:001
179950,0migration/115305-21kthreadcore09:22:171
179950,0migration/114049-21fschecks_time10:57:141
179950,0migration/112007-21sh10:54:031
179950,0migration/111880-21fschecks_count11:52:111
169950,0watchdog/16781-21cat08:57:121
169950,0watchdog/131392-21if_eth107:22:121
169950,0watchdog/12975-21if_eth1.208:32:121
149950,0migration/06608-21kthreadcore09:17:160
149950,0migration/06518-21sh11:11:320
149950,0migration/06438-21munin-node10:12:170
149950,0migration/05536-21fschecks_count12:07:120
149950,0migration/05395-21kthreadcore08:32:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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