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2026-01-01 - 02:55
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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 Thu Jan 01, 2026 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
127972310280,20sleep10-21swapper/119:08:481
127662304274,20sleep20-21swapper/219:08:252
127492275215,19sleep00-21swapper/019:08:110
125242267212,18sleep30-21swapper/319:05:313
282012770,0sleep30-21swapper/322:20:003
74252590,0sleep10-21swapper/121:30:211
70942580,0sleep10-21swapper/122:25:311
135602580,0sleep00-21swapper/021:34:400
117812570,1sleep30-21swapper/323:05:213
138192560,0sleep10-21swapper/122:10:541
91882540,0sleep30-21swapper/322:08:513
197052530,0sleep20-21swapper/222:33:182
263542210,0sleep00-21swapper/023:50:190
118682190,0sleep00-21swapper/023:42:070
246312180,0sleep30-21swapper/320:45:153
299052170,0sleep00-21swapper/022:57:260
262532170,0sleep00-21swapper/021:23:070
246442170,0sleep00-21swapper/022:54:580
182582140,0sleep30-21swapper/322:32:153
17212130,0sleep30-21swapper/319:55:133
171252130,0sleep10-21swapper/123:08:401
1300899117,3cyclictest658-21snmpd22:03:292
309602100,1sleep130956-21turbostat22:40:001
8156290,2sleep18210-21idleruntime-cro21:50:001
23571290,1sleep00-21swapper/019:30:170
130089993,3cyclictest14028-21munin-run21:35:002
130059997,1cyclictest22-21ksoftirqd/119:15:011
130059996,2cyclictest9877-21ssh00:35:341
130019995,3cyclictest9375-21smart_sda20:10:210
130019995,3cyclictest658-21snmpd21:13:190
22452280,0sleep00-21swapper/021:57:400
13482280,0sleep30-21swapper/319:10:143
130119984,3cyclictest275-21systemd-journal21:34:593
130119983,3cyclictest275-21systemd-journal20:15:173
130089983,3cyclictest7119-21munin-run23:40:002
130059983,3cyclictest275-21systemd-journal00:30:011
130059982,3cyclictest30642-21apt00:30:011
130059982,3cyclictest26595-21munin-run00:10:001
130019983,3cyclictest275-21systemd-journal19:44:240
31048270,0sleep10-21swapper/123:16:051
24453270,0sleep20-21swapper/223:12:382
21855270,0sleep30-21swapper/300:25:013
18241270,0chrt0-21swapper/300:04:243
130119974,2cyclictest504-21dbus-daemon23:25:183
130119973,3cyclictest28216-21ntp_states19:40:303
130119973,3cyclictest275-21systemd-journal21:10:223
130119973,2cyclictest275-21systemd-journal22:56:013
130119973,2cyclictest275-21systemd-journal22:24:203
130119972,1cyclictest303152sh23:15:333
130089975,2cyclictest28-21ksoftirqd/219:15:022
130089974,2cyclictest504-21dbus-daemon21:41:192
130089973,3cyclictest658-21snmpd19:42:292
130089971,5cyclictest0-21swapper/223:05:012
130059973,3cyclictest658-21snmpd20:14:321
130059973,3cyclictest504-21dbus-daemon23:35:001
130059973,3cyclictest2447-21sshd22:23:291
130059973,1cyclictest0-21swapper/123:59:561
130059970,7cyclictest13118-21ssh23:43:001
130019973,3cyclictest897-21sshd19:50:580
130019973,3cyclictest658-21snmpd22:33:510
130019973,3cyclictest658-21snmpd19:36:290
130019973,3cyclictest32078-21sshd22:21:290
130019973,3cyclictest30458-21pluginstate19:45:170
130019973,3cyclictest29462-21ntpq20:55:170
130019973,3cyclictest15496-21cat20:25:170
130019973,3cyclictest12877-21ntpq21:15:190
130019972,3cyclictest275-21systemd-journal00:05:000
130119966,0cyclictest0-21swapper/320:25:213
130119963,2cyclictest658-21snmpd20:35:333
130119963,2cyclictest30977-21sh23:35:003
130119963,2cyclictest30183-21cat21:25:123
130119963,2cyclictest2513-21sh21:10:003
130119963,2cyclictest2507-21tune2fs23:00:143
130119963,2cyclictest11117-21ssh22:10:053
130119962,3cyclictest658-21snmpd23:10:073
130119962,3cyclictest658-21snmpd22:47:343
130119962,3cyclictest658-21snmpd22:36:523
130119962,3cyclictest658-21snmpd22:04:473
130119962,3cyclictest658-21snmpd21:49:273
130119962,3cyclictest658-21snmpd21:01:523
130119962,3cyclictest658-21snmpd19:50:043
130119962,3cyclictest6211-21wc23:20:213
130119962,3cyclictest275-21systemd-journal23:51:383
130119962,3cyclictest26958-21cat20:50:163
130119962,3cyclictest17372-21expr20:30:123
130119962,3cyclictest0-21swapper/300:15:133
130119962,3cyclictest0-21swapper/300:10:423
130119962,1cyclictest0-21swapper/323:55:053
130119962,1cyclictest0-21swapper/323:41:583
130119962,1cyclictest0-21swapper/322:25:173
130119962,1cyclictest0-21swapper/321:52:503
130119962,1cyclictest0-21swapper/300:37:193
130119962,1cyclictest0-21swapper/300:06:243
130119961,3cyclictest275-21systemd-journal21:56:453
130119960,5cyclictest24908-21taskset21:22:093
130119960,5cyclictest23642-21rm23:30:193
130119960,5cyclictest20992-21fschecks_time19:25:153
130119960,5cyclictest19124-21rm22:51:003
130119960,5cyclictest17461-21taskset21:36:113
130119960,2cyclictest31903-21fschecks_count22:40:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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