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2026-09-01 - 11:36
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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 Sep 01, 2026 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311492318286,21sleep20-21swapper/219:06:222
311602267241,17sleep10-21swapper/119:06:291
313192266234,21sleep00-21swapper/019:08:170
311692257228,19sleep30-21swapper/319:06:353
161582630,0sleep20-21swapper/223:03:232
51922620,0sleep00-21swapper/000:33:390
49962620,0sleep00-21swapper/020:30:130
86292590,0sleep20-21swapper/222:39:332
70422590,0sleep10-21swapper/122:38:201
257942580,0sleep10-21swapper/121:11:341
300442560,0sleep10-21swapper/123:50:191
210292560,0sleep00-21swapper/023:05:460
53402210,0sleep30-21swapper/321:38:513
30922180,0sleep10-21swapper/122:15:501
308292170,0sleep10-21swapper/122:33:031
86572160,0sleep00-21swapper/021:20:340
283902160,0sleep1211rcuc/100:28:191
162492150,0sleep30-21swapper/323:22:543
138212140,0sleep30-21swapper/322:03:303
315609992,4cyclictest8573-21grep22:20:012
315519998,1cyclictest12-21ksoftirqd/023:59:590
315629983,3cyclictest275-21systemd-journal23:50:003
315629983,3cyclictest275-21systemd-journal21:59:483
315609987,1cyclictest28-21ksoftirqd/219:50:002
315609984,3cyclictest7607-21ntpq20:35:162
315609982,3cyclictest27255-21munin-run23:30:002
315609980,5cyclictest17532-21sleep22:45:012
315559980,7cyclictest5999-21users23:55:211
315519987,1cyclictest12-21ksoftirqd/021:35:010
315519985,2cyclictest32030-21sh00:11:500
31515280,0sleep00-21swapper/022:33:340
19332280,0sleep30-21swapper/323:25:073
315629973,3cyclictest275-21systemd-journal00:04:233
315629973,3cyclictest15221-21snmpd19:36:453
315629973,3cyclictest15221-21snmpd00:38:193
315629973,3cyclictest0-21swapper/322:40:353
315629971,3cyclictest5136-21rm22:36:523
315609974,2cyclictest4200-21cron20:30:002
315609973,3cyclictest9880-21ntpq20:40:182
315609973,3cyclictest275-21systemd-journal21:52:082
315559973,3cyclictest275-21systemd-journal22:09:281
315519974,2cyclictest275-21systemd-journal00:21:220
315519973,3cyclictest560-21gdbus19:50:000
315519973,3cyclictest30764-11brltty00:29:170
315519973,3cyclictest20956-21apt-get19:55:130
29542270,0sleep20-21swapper/222:12:502
13815270,0chrt0-21swapper/022:22:410
315629963,2cyclictest34-21ksoftirqd/322:50:133
315629963,2cyclictest29584-21ssh00:29:103
315629963,2cyclictest29579-21ssh23:30:263
315629963,2cyclictest24766-21ssh22:49:123
315629963,2cyclictest23509-21cstates20:00:143
315629963,2cyclictest15713-21ssh22:24:103
315629963,2cyclictest15221-21snmpd21:47:013
315629963,2cyclictest15221-21snmpd21:40:363
315629963,2cyclictest1503-21sed20:20:213
315629962,3cyclictest9594-21cat20:40:163
315629962,3cyclictest7123-21cut20:35:143
315629962,3cyclictest2992-21cat23:15:133
315629962,3cyclictest28551-21hddtemp_smartct20:10:153
315629962,3cyclictest275-21systemd-journal22:29:033
315629962,3cyclictest23392-21date21:10:143
315629962,3cyclictest20468-21users23:05:213
315629962,3cyclictest17015-21cat22:05:173
315629962,3cyclictest15284-21expr21:25:133
315629962,3cyclictest15221-21snmpd23:11:023
315629962,3cyclictest15221-21snmpd22:31:503
315629962,3cyclictest15221-21snmpd21:54:373
315629962,3cyclictest15221-21snmpd21:32:543
315629962,3cyclictest15221-21snmpd21:15:573
315629962,3cyclictest15221-21snmpd21:15:563
315629962,3cyclictest15221-21snmpd20:56:563
315629962,3cyclictest15221-21snmpd20:52:323
315629962,3cyclictest15221-21snmpd20:06:523
315629962,3cyclictest15221-21snmpd19:50:013
315629962,3cyclictest15221-21snmpd19:46:013
315629962,3cyclictest15221-21snmpd19:41:583
315629962,3cyclictest15221-21snmpd19:30:243
315629962,3cyclictest15221-21snmpd19:25:453
315629962,3cyclictest15221-21snmpd19:22:063
315629962,3cyclictest15221-21snmpd19:14:273
315629962,3cyclictest15221-21snmpd19:14:273
315629962,3cyclictest15221-21snmpd00:11:333
315629962,3cyclictest11590-21sed23:00:173
315629962,1cyclictest0-21swapper/322:11:103
315629962,1cyclictest0-21swapper/300:20:113
315629961,4cyclictest15221-21snmpd23:47:273
315609966,0cyclictest0-21swapper/223:33:052
315609963,2cyclictest9849-21ssh23:38:492
315609963,2cyclictest7510-21ssh00:16:122
315609963,2cyclictest6113-21ssh21:39:272
315609963,2cyclictest504-21dbus-daemon23:10:252
315609963,2cyclictest275-21systemd-journal22:57:182
315609963,2cyclictest21037-21cut21:05:172
315609963,2cyclictest18098-21sh21:45:552
315609963,2cyclictest16721-21cat22:05:162
315609963,2cyclictest15221-21snmpd21:28:002
315609963,2cyclictest15221-21snmpd21:24:032
315609963,2cyclictest13903-21expr00:20:122
315609963,2cyclictest1085-21sh00:30:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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