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2026-05-21 - 12:35
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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 highest latencies:
System rackaslot8.osadl.org (updated Thu May 21, 2026 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
57852289258,21sleep10-21swapper/119:07:091
58342286256,19sleep20-21swapper/219:07:462
59422274224,40sleep00-21swapper/019:09:090
59572270238,21sleep30-21swapper/319:09:203
125092630,0sleep00-21swapper/020:35:010
195252620,0sleep30-21swapper/321:43:273
246802610,0sleep30-21swapper/321:26:373
222342610,0sleep20-21swapper/222:24:192
216192610,0sleep20-21swapper/223:21:212
110572580,0sleep30-21swapper/322:17:073
272252570,0sleep10-21swapper/122:07:241
239132570,0sleep20-21swapper/222:44:402
21262560,0sleep00-21swapper/022:30:580
21262560,0sleep00-21swapper/022:30:580
161942560,0sleep00-21swapper/019:30:110
52042550,0sleep10-21swapper/123:50:191
231662550,0sleep10-21swapper/121:45:171
267072420,0sleep10-21swapper/100:03:561
229062190,1sleep30-21swapper/300:00:583
285922140,0sleep20-21swapper/221:10:022
612399105,3cyclictest275-21systemd-journal00:40:003
612399103,3cyclictest23891-21ssh00:21:213
612399103,3cyclictest2093-21ssh23:29:403
612399102,5cyclictest28150-21ssh22:27:263
611599107,2cyclictest22-21ksoftirqd/100:00:011
61239996,2cyclictest0-21swapper/322:40:023
61239994,4cyclictest28399-21cut23:45:123
61239993,2cyclictest3828-21ssh22:32:163
61239993,2cyclictest3828-21ssh22:32:163
61239993,2cyclictest28324-21diskmemload00:12:383
61239993,2cyclictest12139-21ssh21:19:453
61239992,3cyclictest28324-21diskmemload21:45:033
61239992,3cyclictest28324-21diskmemload21:37:103
61239992,2cyclictest28324-21diskmemload23:21:533
61239991,5cyclictest7212-21ssh22:53:453
61239990,7cyclictest8963-21ssh23:14:283
61239990,7cyclictest0-21swapper/323:54:433
61239990,6cyclictest27454-21sh23:44:593
61239990,6cyclictest27083-21wc21:05:153
61239990,6cyclictest12873-21ssh21:20:073
61239990,4cyclictest7490-21mailstats21:55:183
61239990,3cyclictest9116-21ps22:35:183
61159997,2cyclictest22-21ksoftirqd/100:20:001
61119998,1cyclictest12-21ksoftirqd/020:05:010
61239986,2cyclictest0-21swapper/300:30:023
61239986,1cyclictest0-21swapper/322:45:023
61239985,2cyclictest0-21swapper/319:25:023
61239984,3cyclictest32229-21fschecks_time20:05:163
61239984,3cyclictest30471-21wc21:50:133
61239984,3cyclictest29490-21diskstats00:25:123
61239984,3cyclictest22634-21latency20:55:143
61239984,3cyclictest21146-21ssh23:01:423
61239984,3cyclictest1711-21ssh22:11:203
61239984,3cyclictest16648-21fschecks_time19:30:133
61239984,3cyclictest15980-21grep22:00:193
61239984,3cyclictest12489-21apt-key20:35:013
61239984,3cyclictest10184-21acpi23:15:143
61239983,1cyclictest13182-21ssh23:35:273
61239982,2cyclictest13476-21load00:15:153
61239981,3cyclictest28084-21ssh23:05:413
61239980,7cyclictest0-21swapper/322:55:173
61239980,6cyclictest30783-21ssh00:05:433
61239980,5cyclictest26700-21sh22:06:593
61239980,3cyclictest5913-21rm23:31:143
61239980,3cyclictest30146-21smartctl21:30:133
61239980,3cyclictest28324-21diskmemload21:10:443
61239980,2cyclictest12761-21sed23:55:143
61189986,1cyclictest28-21ksoftirqd/220:20:012
61159980,2cyclictest9577-21diskmemload22:15:591
61119987,1cyclictest12-21ksoftirqd/019:15:010
61119987,1cyclictest12-21ksoftirqd/000:10:000
15324280,0sleep30-21swapper/322:20:123
13624280,0sleep00-21swapper/021:40:070
61239976,0cyclictest25092-21apt-get19:50:093
61239975,2cyclictest13393-21perf19:25:013
61239975,1cyclictest0-21swapper/320:00:123
61239974,3cyclictest9421-21mailstats20:25:183
61239974,2cyclictest29475-21latency_hist20:00:003
61239974,2cyclictest20189-21gltestperf20:50:113
61239974,2cyclictest17630-21grep20:45:123
61239973,3cyclictest8972-21timerwakeupswit19:15:013
61239973,3cyclictest6237-21cstates20:20:133
61239973,3cyclictest24790-21if_enp4s021:00:143
61239973,3cyclictest23434-21gltestperf19:45:143
61239973,3cyclictest20768-21cpuspeed_turbos19:40:133
61239973,3cyclictest18405-21acpi19:35:123
61239970,3cyclictest3886-21cat20:15:123
61239970,3cyclictest15436-21cat20:40:123
61189975,1cyclictest0-21swapper/221:26:392
61189973,3cyclictest658-21snmpd00:39:422
61189973,1cyclictest0-21swapper/223:35:322
61189972,4cyclictest0-21swapper/222:45:012
61189970,4cyclictest13243-21munin-run21:40:002
61159976,1cyclictest0-21swapper/121:25:201
61159973,3cyclictest658-21snmpd23:37:391
61159973,3cyclictest658-21snmpd00:14:431
61119973,3cyclictest501-21in:imuxsock23:40:010
61119973,3cyclictest29860-21cron21:50:010
61119972,3cyclictest275-21systemd-journal21:17:360
61119972,3cyclictest275-21systemd-journal20:44:100
61119970,1cyclictest141rcu_preempt19:20:120
61119970,1cyclictest0-21swapper/023:00:160
30143270,1sleep20-21swapper/221:30:122
25399270,0sleep00-21swapper/000:02:550
8165260,1sleep1211rcuc/120:25:011
61239964,2cyclictest0-21swapper/320:35:113
61239964,2cyclictest0-21swapper/319:10:083
61239962,3cyclictest1763-21cat20:10:133
61189966,0cyclictest0-21swapper/223:10:142
61189963,2cyclictest658-21snmpd21:50:442
61189963,2cyclictest658-21snmpd19:48:492
61189963,2cyclictest504-21dbus-daemon23:45:192
61189963,2cyclictest504-21dbus-daemon21:17:122
61189963,2cyclictest504-21dbus-daemon20:22:302
61189963,2cyclictest275-21systemd-journal22:00:442
61189963,2cyclictest19647-21/usr/sbin/munin20:50:162
61189963,2cyclictest18133-21cron19:35:012
61189963,2cyclictest17477-21ssh21:22:282
61189963,2cyclictest11421-21sh22:55:382
61189963,2cyclictest11102-21ssh21:57:472
61189963,2cyclictest10162-21ssh23:15:132
61189963,1cyclictest0-21swapper/223:50:392
61189963,1cyclictest0-21swapper/222:37:182
61189962,3cyclictest658-21snmpd23:27:502
61189962,3cyclictest658-21snmpd22:52:592
61189962,3cyclictest658-21snmpd22:18:312
61189962,3cyclictest658-21snmpd20:57:372
61189962,3cyclictest658-21snmpd20:06:502
61189962,3cyclictest658-21snmpd20:01:352
61189962,3cyclictest658-21snmpd19:53:192
61189962,3cyclictest658-21snmpd19:21:282
61189962,3cyclictest658-21snmpd19:12:552
61189962,3cyclictest658-21snmpd00:14:102
61189962,3cyclictest26251-21expr23:05:122
61189962,2cyclictest275-21systemd-journal20:35:022
61189962,1cyclictest0-21swapper/223:40:222
61189962,1cyclictest0-21swapper/223:33:402
61189962,1cyclictest0-21swapper/222:31:082
61189962,1cyclictest0-21swapper/222:31:082
61189962,1cyclictest0-21swapper/222:12:442
61189961,1cyclictest0-21swapper/200:15:122
61189960,6cyclictest0-21swapper/221:46:092
61189960,6cyclictest0-21swapper/200:06:532
61159966,0cyclictest0-21swapper/123:20:551
61159966,0cyclictest0-21swapper/122:30:181
61159966,0cyclictest0-21swapper/122:30:171
61159965,1cyclictest22-21ksoftirqd/120:35:001
61159964,1cyclictest26272-21grep22:45:171
61159963,2cyclictest8452-21swap19:15:011
61159963,2cyclictest658-21snmpd22:56:381
61159963,2cyclictest3755-21sshd20:15:091
61159963,2cyclictest3206-21tr23:30:121
61159963,2cyclictest275-21systemd-journal20:53:211
61159963,2cyclictest24356-21rm00:21:411
61159963,2cyclictest2185-21ssh00:28:201
61159963,2cyclictest18247-21grep22:40:201
61159963,2cyclictest17179-21ssh22:01:051
61159963,2cyclictest15005-21sh21:20:331
61159963,1cyclictest0-21swapper/100:09:311
61159962,3cyclictest658-21snmpd21:36:551
61159962,3cyclictest658-21snmpd21:34:351
61159962,3cyclictest658-21snmpd20:45:061
61159962,3cyclictest658-21snmpd19:17:431
61159962,3cyclictest28161-21ssh22:27:261
61159962,3cyclictest26894-21gdbus23:25:001
61159962,3cyclictest25479-21cat23:05:011
61159962,3cyclictest19084-21cat19:35:151
61159962,1cyclictest0-21swapper/122:20:121
61159961,2cyclictest275-21systemd-journal19:20:041
61159960,6cyclictest0-21swapper/123:11:551
61159960,6cyclictest0-21swapper/100:36:141
61159960,0cyclictest0-21swapper/121:15:501
61159960,0cyclictest0-21swapper/100:30:061
61119966,0cyclictest0-21swapper/023:15:250
61119965,1cyclictest12-21ksoftirqd/023:09:590
61119963,2cyclictest7215-21expr22:15:110
61119963,2cyclictest501-21in:imuxsock21:30:310
61119963,2cyclictest26741-21ssh23:44:260
61119963,2cyclictest25670-21ssh21:46:460
61119963,2cyclictest21593-21cat00:20:140
61119963,2cyclictest20592-21ssh22:23:030
61119963,2cyclictest15510-21ssh00:35:410
61119963,2cyclictest12948-21gdbus20:35:010
61119963,2cyclictest12870-21ssh22:37:480
61119962,3cyclictest658-21snmpd23:25:470
61119962,3cyclictest658-21snmpd23:21:500
61119962,3cyclictest658-21snmpd22:45:130
61119962,3cyclictest658-21snmpd22:25:460
61119962,3cyclictest658-21snmpd21:55:300
61119962,3cyclictest658-21snmpd21:10:340
61119962,3cyclictest658-21snmpd21:08:220
61119962,3cyclictest658-21snmpd20:15:350
61119962,3cyclictest658-21snmpd20:10:220
61119962,3cyclictest658-21snmpd19:36:340
61119962,3cyclictest658-21snmpd19:15:060
61119962,3cyclictest658-21snmpd00:28:250
61119962,3cyclictest658-21snmpd00:12:480
61119962,3cyclictest5241-21expr00:30:110
61119962,3cyclictest31811-21cat22:10:140
61119962,3cyclictest304-21systemd-udevd20:06:340
61119962,3cyclictest275-21systemd-journal19:55:090
61119962,3cyclictest275-21systemd-journal00:16:170
61119962,3cyclictest23565-21sed22:05:160
61119962,3cyclictest14130-21expr19:25:120
61119962,2cyclictest658-21snmpd21:26:060
61119962,2cyclictest275-21systemd-journal20:50:100
61119962,1cyclictest0-21swapper/023:11:270
61119960,6cyclictest0-21swapper/022:52:190
61189953,1cyclictest663-21runrttasks00:20:012
61189953,1cyclictest27676-21expr19:55:132
61189953,1cyclictest226162sleep222:05:062
61189953,1cyclictest18009-21df23:00:132
61189952,2cyclictest658-21snmpd23:55:092
61189952,2cyclictest658-21snmpd20:45:292
61189952,2cyclictest30203-21cut00:25:172
61189952,2cyclictest23613-21ssh22:25:122
61189952,2cyclictest20371-21rm00:00:122
61189952,2cyclictest1966-21forks20:10:142
61189952,2cyclictest18381-21sshd19:35:072
61189952,2cyclictest15205-21taskset20:40:062
61189952,2cyclictest14923-21sh19:25:172
61189952,2cyclictest14507-21cat21:40:172
61189952,2cyclictest1050-11brltty20:30:502
61189952,1cyclictest0-21swapper/200:30:062
61189951,3cyclictest27033-21cat21:05:152
61189951,3cyclictest24119-21/usr/sbin/munin21:00:162
61189950,4cyclictest9449-21cat19:15:122
61189950,4cyclictest8225-21/usr/sbin/munin20:25:112
61189950,4cyclictest20868-21ls19:40:132
61159955,0cyclictest0-21swapper/123:45:071
61159953,1cyclictest27031-21latency_hist19:55:011
61159953,1cyclictest13422-21fschecks_count20:35:131
61159952,2cyclictest8924-21cat20:25:131
61159952,2cyclictest8501-21expr22:35:151
61159952,2cyclictest6985-21cut21:55:151
61159952,2cyclictest658-21snmpd22:50:051
61159952,2cyclictest658-21snmpd22:10:061
61159952,2cyclictest658-21snmpd21:50:141
61159952,2cyclictest658-21snmpd20:40:081
61159952,2cyclictest658-21snmpd20:00:081
61159952,2cyclictest32192-21cut20:05:161
61159952,2cyclictest28790-21sh21:10:121
61159952,2cyclictest28663-21ssh23:06:061
61159952,2cyclictest23674-21missed_timers19:45:151
61159952,2cyclictest22192-21cat20:55:121
61159952,2cyclictest19442-21ssh23:40:021
61159952,2cyclictest13561-21ssh21:40:041
61159952,2cyclictest10991-21uname23:15:171
61159951,3cyclictest658-21snmpd20:14:001
61159951,3cyclictest27961-21if_enp4s019:55:151
61159951,3cyclictest275-21systemd-journal19:40:011
61159951,3cyclictest16530-21cat19:30:101
61159951,3cyclictest14072-21cat19:25:111
61159950,0cyclictest0-21swapper/121:05:001
61119952,2cyclictest8619-21expr20:25:120
61119952,2cyclictest658-21snmpd21:00:580
61119952,2cyclictest6229-21cat20:20:120
61119952,2cyclictest5401-21awk21:35:100
61119952,2cyclictest3616-21head23:30:140
61119952,2cyclictest28434-21fschecks_count23:45:130
61119952,2cyclictest27147-21cat19:55:010
61119952,2cyclictest22840-21sshd19:45:080
61119952,2cyclictest22183-21expr20:55:120
61119952,2cyclictest18855-21cat20:45:190
61119952,2cyclictest16709-21grep22:40:120
61119952,2cyclictest14318-21tr21:20:180
61119952,2cyclictest13460-21smart_sda23:55:200
61119952,1cyclictest0-21swapper/023:50:070
61119951,3cyclictest658-21snmpd22:55:170
61119951,3cyclictest20611-21sshd19:40:070
61119950,4cyclictest14833-21cat22:00:130
61159940,3cyclictest24106-21chrt21:00:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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