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2026-06-15 - 15:56
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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 376 highest latencies:
System rackaslot8.osadl.org (updated Mon Jun 15, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67492299273,17sleep20-21swapper/219:08:242
67812285258,17sleep10-21swapper/119:08:471
65252269239,20sleep00-21swapper/019:05:450
65062256224,22sleep30-21swapper/319:05:323
161492610,0sleep20-21swapper/221:40:472
150242610,0sleep00-21swapper/022:00:160
36382590,0sleep30-21swapper/322:32:553
223182590,0sleep10-21swapper/100:02:251
224852570,0sleep30-21swapper/322:05:073
130662570,0sleep00-21swapper/023:37:340
83702560,0sleep00-21swapper/023:54:400
69452560,0sleep20-21swapper/221:35:182
314602560,0sleep10-21swapper/121:10:221
239912560,0sleep30-21swapper/323:44:383
145022560,0sleep30-21swapper/323:18:553
247072540,0sleep20-21swapper/223:45:002
141942190,0sleep00-21swapper/000:36:320
90962170,0sleep00-21swapper/022:35:470
304902170,0sleep30-21swapper/321:50:143
199632170,0sleep20-21swapper/222:03:342
153892170,0sleep30-21swapper/323:58:433
233092150,0sleep30-21swapper/300:03:113
33192140,0sleep20-21swapper/223:11:342
83802100,0sleep10-21swapper/123:35:061
8237290,0sleep30-21swapper/321:35:593
2319290,0sleep20-21swapper/221:32:462
69859986,1cyclictest0-21swapper/322:11:023
69859983,3cyclictest275-21systemd-journal22:35:113
69819980,6cyclictest275-21systemd-journal19:11:522
69779987,1cyclictest22-21ksoftirqd/100:15:011
4279280,0sleep30-21swapper/300:10:483
69859975,1cyclictest18016-21ssh23:00:433
69859974,2cyclictest658-21snmpd22:21:253
69859973,3cyclictest504-21dbus-daemon23:15:013
69859973,3cyclictest504-21dbus-daemon20:00:003
69859973,2cyclictest28946-21sshd21:07:133
69859972,3cyclictest275-21systemd-journal19:51:583
69819973,3cyclictest658-21snmpd20:13:382
69819973,3cyclictest658-21snmpd19:42:412
69819973,3cyclictest658-21snmpd19:17:442
69819973,3cyclictest32116-21ntpq22:30:192
69819973,3cyclictest275-21systemd-journal23:31:022
69819973,3cyclictest275-21systemd-journal20:50:002
69819972,3cyclictest29690-21dump-pmu-power21:50:002
69819971,3cyclictest22784-21ls22:45:012
69819970,7cyclictest51250irq/139-enp4s0-21:52:302
69779976,1cyclictest22-21ksoftirqd/122:55:021
69779976,1cyclictest22-21ksoftirqd/122:40:011
69779976,1cyclictest22-21ksoftirqd/119:55:001
69779975,2cyclictest22-21ksoftirqd/119:40:001
69779974,2cyclictest504-21dbus-daemon19:40:401
69779974,2cyclictest275-21systemd-journal23:10:021
69779973,3cyclictest275-21systemd-journal21:24:591
69779973,1cyclictest0-21swapper/122:01:231
69779970,4cyclictest22788-21latency_hist22:45:011
69749975,1cyclictest17068-40ogrotate00:00:010
69749975,1cyclictest12-21ksoftirqd/000:00:010
69749974,2cyclictest275-21systemd-journal22:27:240
69749974,2cyclictest12-21ksoftirqd/022:45:020
69749973,3cyclictest275-21systemd-journal23:42:390
69749973,3cyclictest275-21systemd-journal22:30:340
69749973,3cyclictest275-21systemd-journal19:10:340
69749973,3cyclictest16727-21apt-get19:30:130
69749973,2cyclictest24078-21perf23:25:000
2320270,0sleep20-21swapper/221:12:572
21766270,0sleep10-21swapper/123:03:401
69859966,0cyclictest0-21swapper/321:58:173
69859963,2cyclictest8277-21ssh22:15:243
69859963,2cyclictest658-21snmpd20:41:033
69859963,2cyclictest658-21snmpd19:40:423
69859963,2cyclictest504-21dbus-daemon20:00:163
69859963,2cyclictest30407-21fschecks_time21:30:143
69859963,2cyclictest27186-21ssh23:06:303
69859963,2cyclictest26806-21hddtemp_smartct00:05:143
69859963,2cyclictest25735-21sh21:27:083
69859963,2cyclictest24987-21acpi21:00:113
69859963,2cyclictest24390-21sh21:45:523
69859963,2cyclictest23621-21ssh00:22:483
69859963,2cyclictest19229-21ssh21:23:253
69859963,2cyclictest15170-21ntpq22:00:173
69859962,3cyclictest658-21snmpd23:24:383
69859962,3cyclictest658-21snmpd22:53:163
69859962,3cyclictest658-21snmpd22:28:503
69859962,3cyclictest658-21snmpd20:55:163
69859962,3cyclictest658-21snmpd20:55:163
69859962,3cyclictest658-21snmpd20:51:543
69859962,3cyclictest658-21snmpd19:36:003
69859962,3cyclictest658-21snmpd19:18:103
69859962,3cyclictest275-21systemd-journal20:15:003
69859962,3cyclictest26137-21grep23:25:203
69859962,3cyclictest18453-21seq19:32:133
69859962,3cyclictest14605-21cat21:40:153
69859962,3cyclictest1304-21cat23:50:123
69859962,3cyclictest1228-21cat23:30:153
69859962,1cyclictest0-21swapper/300:30:103
69859960,6cyclictest0-21swapper/323:36:203
69859960,6cyclictest0-21swapper/322:49:173
69859960,6cyclictest0-21swapper/322:40:303
69859960,6cyclictest0-21swapper/300:25:453
69859960,2cyclictest7574-21/usr/sbin/munin22:55:143
69859960,0cyclictest0-21swapper/323:47:453
69819966,0cyclictest0-21swapper/223:05:092
69819964,1cyclictest658-21snmpd22:05:042
69819963,2cyclictest9788-21tune2fs23:55:142
69819963,2cyclictest658-21snmpd00:12:062
69819963,2cyclictest491-21systemd-logind22:11:512
69819963,2cyclictest22835-21open_inodes21:25:182
69819963,2cyclictest21474-21ssh23:03:252
69819963,2cyclictest18737-21sh23:20:502
69819963,2cyclictest11051-21ssh22:17:342
69819962,3cyclictest8748-21grep22:55:182
69819962,3cyclictest8102-21which22:35:182
69819962,3cyclictest658-21snmpd23:54:332
69819962,3cyclictest658-21snmpd23:28:292
69819962,3cyclictest658-21snmpd22:50:432
69819962,3cyclictest658-21snmpd22:46:492
69819962,3cyclictest658-21snmpd22:27:372
69819962,3cyclictest658-21snmpd21:05:112
69819962,3cyclictest658-21snmpd20:20:332
69819962,3cyclictest658-21snmpd19:47:562
69819962,3cyclictest658-21snmpd00:35:402
69819962,3cyclictest275-21systemd-journal21:05:002
69819962,3cyclictest275-21systemd-journal20:00:002
69819962,3cyclictest17366-21cat20:40:202
69819962,3cyclictest10358-21ntpq20:25:182
69819962,1cyclictest0-21swapper/223:40:172
69819962,1cyclictest0-21swapper/223:38:482
69819962,1cyclictest0-21swapper/223:16:362
69819961,2cyclictest28-21ksoftirqd/221:15:052
69819960,6cyclictest0-21swapper/200:26:212
69819960,6cyclictest0-21swapper/200:07:272
69819960,6cyclictest0-21swapper/200:03:362
69779966,0cyclictest0-21swapper/100:08:321
69779964,2cyclictest9922-21kworker/1:222:45:081
69779964,1cyclictest6411-21irqstats21:35:151
69779964,1cyclictest22-21ksoftirqd/100:25:011
69779963,2cyclictest658-21snmpd19:25:521
69779963,2cyclictest658-21snmpd00:31:491
69779963,2cyclictest4941-21rm23:51:591
69779963,2cyclictest29205-21diskmemload23:29:021
69779963,2cyclictest28183-21ssh23:46:301
69779963,2cyclictest275-21systemd-journal23:15:071
69779963,2cyclictest25062-21ssh22:05:551
69779963,2cyclictest2165-21ssh23:30:251
69779963,2cyclictest14438-21ssh23:57:591
69779963,1cyclictest0-21swapper/121:33:311
69779962,3cyclictest658-21snmpd23:14:231
69779962,3cyclictest658-21snmpd22:14:181
69779962,3cyclictest658-21snmpd21:46:261
69779962,3cyclictest658-21snmpd21:15:401
69779962,3cyclictest658-21snmpd20:45:181
69779962,3cyclictest658-21snmpd20:44:241
69779962,3cyclictest658-21snmpd20:16:311
69779962,3cyclictest658-21snmpd20:06:541
69779962,3cyclictest658-21snmpd20:04:471
69779962,3cyclictest658-21snmpd19:58:171
69779962,3cyclictest658-21snmpd19:30:521
69779962,3cyclictest658-21snmpd00:35:101
69779962,3cyclictest658-21snmpd00:27:221
69779962,3cyclictest275-21systemd-journal19:48:101
69779962,3cyclictest10396-21expr19:15:131
69779961,4cyclictest0-21swapper/122:15:141
69779960,6cyclictest0-21swapper/123:42:391
69779960,6cyclictest0-21swapper/122:30:291
69779960,6cyclictest0-21swapper/121:56:281
69779960,3cyclictest188042sh22:22:131
69779960,2cyclictest15317-21readlink23:00:021
69749966,0cyclictest29205-21diskmemload23:17:560
69749966,0cyclictest29205-21diskmemload21:45:490
69749963,2cyclictest658-21snmpd21:40:170
69749963,2cyclictest658-21snmpd20:35:180
69749963,2cyclictest504-21dbus-daemon19:16:540
69749963,2cyclictest29636-21rm21:30:000
69749963,2cyclictest28340-21sh23:46:370
69749963,2cyclictest27173-21tr00:05:170
69749963,2cyclictest22513-21uname21:25:150
69749963,2cyclictest19888-21ssh23:02:120
69749963,2cyclictest13027-21sed19:20:160
69749963,1cyclictest0-21swapper/000:27:090
69749962,3cyclictest658-21snmpd23:30:530
69749962,3cyclictest658-21snmpd23:10:260
69749962,3cyclictest658-21snmpd23:06:440
69749962,3cyclictest658-21snmpd22:45:050
69749962,3cyclictest658-21snmpd22:10:570
69749962,3cyclictest658-21snmpd22:05:480
69749962,3cyclictest658-21snmpd21:12:190
69749962,3cyclictest658-21snmpd20:24:000
69749962,3cyclictest658-21snmpd20:14:140
69749962,3cyclictest658-21snmpd20:03:420
69749962,3cyclictest658-21snmpd00:23:280
69749962,3cyclictest658-21snmpd00:17:190
69749962,3cyclictest658-21snmpd00:10:480
69749962,3cyclictest4284-21cat00:30:180
69749962,3cyclictest28244-21sort19:55:140
69749962,3cyclictest19620-21cat19:35:160
69749962,3cyclictest17046-21cat20:40:170
69749962,3cyclictest15234-21tune2fs22:20:140
69749962,3cyclictest15000-21perl19:25:110
69749962,3cyclictest11370-21cron20:30:000
69749962,1cyclictest0-21swapper/021:50:230
69749962,1cyclictest0-21swapper/021:16:590
69749961,4cyclictest504-11dbus-daemon21:23:020
69749960,6cyclictest0-21swapper/021:55:320
69749960,6cyclictest0-21swapper/021:36:100
69749960,2cyclictest275-21systemd-journal21:07:130
23294260,2sleep223289-21gltestperf20:55:142
23294260,2sleep223289-21gltestperf20:55:142
69859953,1cyclictest7601-21grep20:20:133
69859953,1cyclictest29205-21diskmemload00:15:013
69859953,1cyclictest24122-21fschecks_count19:45:143
69859953,1cyclictest13958-21grep20:35:143
69859952,2cyclictest873-21cat20:05:173
69859952,2cyclictest5285-21cat20:15:143
69859952,2cyclictest29615-21ssh21:10:103
69859952,2cyclictest18553-21expr20:45:113
69859952,2cyclictest14705-21cstates19:25:103
69859952,2cyclictest13046-21sort19:20:163
69859952,2cyclictest11867-21expr20:30:133
69859952,2cyclictest10811-21sh00:35:073
69859951,3cyclictest9392-21/usr/sbin/munin20:25:133
69859951,3cyclictest7372-21grep19:10:123
69859951,3cyclictest5392-21/usr/sbin/munin21:15:173
69819955,0cyclictest0-21swapper/220:52:352
69819953,1cyclictest3338-21tail00:30:142
69819952,2cyclictest860-21cat20:05:172
69819952,2cyclictest658-21snmpd19:35:022
69819952,2cyclictest6017-21cpuspeed_turbos21:55:122
69819952,2cyclictest504-21dbus-daemon19:30:152
69819952,2cyclictest25935-21chrt19:50:122
69819952,2cyclictest21047-21ssh00:20:492
69819952,2cyclictest14608-21rm22:20:092
69819952,2cyclictest14542-21cpu19:25:112
69819952,2cyclictest14052-21seq20:35:132
69819952,2cyclictest13904-21expr21:20:112
69819952,2cyclictest12618-21cat19:20:142
69819952,2cyclictest12305-21cat20:30:162
69819952,2cyclictest11044-21perl00:15:142
69819950,4cyclictest4392-21apt-get20:15:012
69819950,3cyclictest275-21systemd-journal20:02:352
69779953,1cyclictest13614-21rm21:40:011
69779953,1cyclictest12653-21grep20:30:181
69779952,2cyclictest9699-21cat20:25:131
69779952,2cyclictest8384-21mailstats19:10:191
69779952,2cyclictest658-21snmpd21:00:051
69779952,2cyclictest658-21snmpd20:59:321
69779952,2cyclictest658-21snmpd20:59:321
69779952,2cyclictest658-21snmpd20:10:091
69779952,2cyclictest501-21in:imuxsock21:07:071
69779952,2cyclictest24669-21ssh22:25:231
69779951,3cyclictest658-21snmpd20:20:161
69779951,3cyclictest30126-21seq21:50:121
69779951,3cyclictest22429-21ls21:25:151
69779951,3cyclictest13847-21cat20:35:121
69779951,3cyclictest10419-21ssh00:15:101
69779950,4cyclictest16775-21cat23:20:121
69779950,1cyclictest0-21swapper/119:20:141
69749953,1cyclictest24391-21sh23:25:040
69749953,1cyclictest18422-21cpuspeed_turbos20:45:120
69749952,2cyclictest658-21snmpd20:15:030
69749952,2cyclictest658-21snmpd19:45:440
69749952,2cyclictest501-21in:imuxsock20:55:020
69749952,2cyclictest501-21in:imuxsock20:55:010
69749952,2cyclictest26473-21sed21:00:200
69749952,2cyclictest21746-21expr19:40:120
69749952,2cyclictest20758-21expr20:50:130
69749952,2cyclictest11708-21cat20:30:110
69749951,3cyclictest7673-21cat22:55:120
69749951,3cyclictest658-21snmpd20:08:510
69749951,3cyclictest26604-21cat19:50:160
69749950,4cyclictest6368-21sh22:15:070
69749950,4cyclictest32126-21expr22:50:130
69779941,2cyclictest658-21snmpd20:50:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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