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2026-08-31 - 20:55
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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 highest latencies:
System rackaslot8.osadl.org (updated Mon Aug 31, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171862299275,14sleep20-21swapper/207:05:022
189352273242,21sleep10-21swapper/107:07:181
190052265236,19sleep30-21swapper/307:08:133
189292260230,19sleep00-21swapper/007:07:120
187022880,0sleep30-21swapper/311:28:443
171122760,0sleep20-21swapper/209:33:182
171122760,0sleep20-21swapper/209:33:182
263812660,0sleep20-21swapper/209:57:452
85912620,1sleep20-21swapper/212:38:582
288202600,0sleep20-21swapper/212:12:432
270622590,0sleep00-21swapper/010:35:510
104402590,0sleep10-21swapper/111:23:531
104402590,0sleep10-21swapper/111:23:531
61262580,0sleep30-21swapper/311:01:493
174552580,0sleep10-21swapper/108:15:131
94082570,0sleep30-21swapper/311:23:073
94082570,0sleep30-21swapper/311:23:073
24162570,0sleep10-21swapper/112:35:121
158042550,0sleep30-21swapper/309:13:253
310132520,0sleep20-21swapper/210:38:492
307972490,0sleep30-21swapper/312:14:123
234542200,0sleep20-21swapper/211:30:552
245842160,0sleep20-21swapper/211:50:412
311442150,0sleep30-21swapper/309:22:143
185582150,0sleep00-21swapper/011:28:360
8282140,0sleep20-21swapper/210:40:132
122692140,0sleep30-21swapper/309:49:533
169822130,0sleep10-21swapper/111:27:251
220732110,0sleep022080-21gltestperf09:55:150
1927299107,3cyclictest22-21ksoftirqd/109:20:001
2725290,0sleep10-21swapper/112:16:061
192769992,3cyclictest10929-21ls09:30:002
192679992,4cyclictest31177-21perf10:20:010
3055280,0sleep10-21swapper/111:38:351
192809985,2cyclictest6679-21awk11:40:193
192809980,7cyclictest14369-21ssh09:31:143
192809980,7cyclictest14369-21ssh09:31:143
192769980,5cyclictest8173-21grep07:55:012
192679986,1cyclictest0-21swapper/010:10:130
19033280,0sleep00-21swapper/009:15:140
11638280,0sleep10-21swapper/110:26:591
32277270,0chrt0-21swapper/110:00:481
192809974,2cyclictest6391-21ssh10:24:253
192809973,3cyclictest15221-21snmpd09:58:563
192809971,5cyclictest23752-21smart_sda11:50:203
192809970,6cyclictest7254-21apt-config09:05:003
192769970,6cyclictest0-21swapper/210:17:022
192729973,3cyclictest275-21systemd-journal09:10:061
192729973,3cyclictest275-21systemd-journal08:49:081
192729973,3cyclictest275-21systemd-journal07:29:571
192729972,3cyclictest275-21systemd-journal07:40:361
192729971,6cyclictest51050irq/138-enp4s0-11:46:321
192679974,2cyclictest275-21systemd-journal11:45:180
192679973,3cyclictest275-21systemd-journal12:28:500
192679973,3cyclictest275-21systemd-journal09:49:210
192679973,3cyclictest275-21systemd-journal07:15:010
192679973,3cyclictest22532-21wc07:15:020
192679973,3cyclictest15221-21snmpd10:53:430
192679973,3cyclictest15221-21snmpd08:46:050
192679973,1cyclictest25977-21munin-run08:35:000
192679972,3cyclictest275-21systemd-journal11:39:170
192679971,3cyclictest20923-21ls09:55:010
192809966,0cyclictest0-21swapper/311:17:343
192809966,0cyclictest0-21swapper/309:54:353
192809964,1cyclictest9442-21diskmemload10:50:163
192809964,1cyclictest26604-21df08:35:123
192809963,2cyclictest8022-21sh10:44:313
192809963,2cyclictest31530-21ssh10:39:123
192809963,2cyclictest3083-21awk12:35:153
192809963,2cyclictest30266-21sh09:40:253
192809963,2cyclictest23938-21ssh11:12:263
192809963,2cyclictest23638-21seq08:28:573
192809963,2cyclictest23323-21tr10:15:123
192809963,2cyclictest19977-21sshd12:25:523
192809963,2cyclictest1876-21cat08:50:203
192809963,2cyclictest18005-21ssh11:47:053
192809963,2cyclictest0-21swapper/312:00:023
192809962,3cyclictest7927-21ls10:25:123
192809962,3cyclictest30918-21cat11:55:123
192809962,3cyclictest30255-21expr10:00:113
192809962,3cyclictest27769-21cat07:25:163
192809962,3cyclictest275-21systemd-journal12:05:173
192809962,3cyclictest275-21systemd-journal11:05:063
192809962,3cyclictest1626-21munin-run11:00:013
192809962,3cyclictest15221-21snmpd11:35:113
192809962,3cyclictest15221-21snmpd10:30:183
192809962,3cyclictest15221-21snmpd09:37:033
192809962,3cyclictest15221-21snmpd08:00:103
192809962,3cyclictest15221-21snmpd07:58:283
192809962,3cyclictest15221-21snmpd07:54:463
192809962,3cyclictest15221-21snmpd07:45:103
192809962,3cyclictest1-21systemd07:40:063
192809962,3cyclictest0-21swapper/310:47:373
192809962,2cyclictest15242-21fw_packets10:10:143
192809961,4cyclictest18832-21fschecks_time09:15:133
192809961,4cyclictest0-21swapper/311:30:133
192809961,3cyclictest30491-21rm12:32:253
192809961,3cyclictest275-21systemd-journal08:55:493
192809961,3cyclictest10735-21sh10:07:243
192809960,6cyclictest0-21swapper/312:24:343
192809960,6cyclictest0-21swapper/308:45:173
192809960,6cyclictest0-21swapper/308:34:563
192809960,5cyclictest22218-21expr07:15:013
192809960,3cyclictest19463-21/usr/sbin/munin07:10:133
192809960,0cyclictest0-21swapper/308:20:013
192769966,0cyclictest0-21swapper/209:54:242
192769966,0cyclictest0-21swapper/209:14:352
192769966,0cyclictest0-21swapper/208:40:252
192769966,0cyclictest0-21swapper/208:25:232
192769963,2cyclictest774-21cat10:20:212
192769963,2cyclictest501-21in:imuxsock11:42:542
192769963,2cyclictest29181-21rm11:35:032
192769963,2cyclictest275-21systemd-journal09:40:292
192769963,2cyclictest275-21systemd-journal07:49:572
192769963,2cyclictest21359-21ssh11:10:312
192769963,2cyclictest15221-21snmpd07:56:222
192769962,3cyclictest504-21dbus-daemon10:25:122
192769962,3cyclictest30268-21expr10:00:122
192769962,3cyclictest275-21systemd-journal11:20:202
192769962,3cyclictest275-21systemd-journal11:20:202
192769962,3cyclictest26903-21cat08:35:152
192769962,3cyclictest25812-11brltty08:52:282
192769962,3cyclictest24674-21cat08:30:162
192769962,3cyclictest16358-21awk10:10:202
192769962,3cyclictest15221-21snmpd12:15:152
192769962,3cyclictest15221-21snmpd11:57:442
192769962,3cyclictest15221-21snmpd11:25:522
192769962,3cyclictest15221-21snmpd09:20:242
192769962,3cyclictest15221-21snmpd09:06:332
192769962,3cyclictest15221-21snmpd09:04:212
192769962,3cyclictest15221-21snmpd08:17:442
192769962,3cyclictest15221-21snmpd08:11:252
192769962,3cyclictest15221-21snmpd07:42:522
192769962,3cyclictest15221-21snmpd07:17:422
192769962,3cyclictest1-21systemd07:38:562
192769962,1cyclictest0-21swapper/212:21:552
192769962,1cyclictest0-21swapper/209:35:132
192769961,4cyclictest0-21swapper/212:05:122
192769960,6cyclictest0-21swapper/210:48:322
192769960,6cyclictest0-21swapper/209:45:232
192769960,4cyclictest10440-21idleruntime-cro11:05:012
192769960,0cyclictest0-21swapper/212:01:542
192769960,0cyclictest0-21swapper/209:17:062
192729966,0cyclictest0-21swapper/112:20:561
192729963,2cyclictest9018-21ssh10:45:061
192729963,2cyclictest30767-21ssh11:55:091
192729963,2cyclictest29093-21sh10:56:191
192729963,2cyclictest275-21systemd-journal09:55:011
192729963,2cyclictest275-21systemd-journal08:59:591
192729963,2cyclictest25821-21ntp_offset07:20:171
192729963,2cyclictest24399-21fschecks_count12:10:151
192729963,2cyclictest21676-21cat11:30:161
192729963,2cyclictest20433-21ntpq07:10:171
192729963,2cyclictest13797-21ssh09:30:481
192729963,2cyclictest13797-21ssh09:30:481
192729963,1cyclictest0-21swapper/112:06:291
192729963,1cyclictest0-21swapper/112:00:051
192729963,1cyclictest0-21swapper/110:52:421
192729963,1cyclictest0-21swapper/109:51:531
192729962,3cyclictest8053-21sed09:05:141
192729962,3cyclictest15221-21snmpd12:31:031
192729962,3cyclictest15221-21snmpd11:50:231
192729962,3cyclictest15221-21snmpd10:31:141
192729962,3cyclictest15221-21snmpd10:09:021
192729962,3cyclictest15221-21snmpd09:26:391
192729962,3cyclictest15221-21snmpd08:51:381
192729962,3cyclictest15221-21snmpd08:40:051
192729962,3cyclictest15221-21snmpd08:23:051
192729962,3cyclictest15221-21snmpd08:09:191
192729962,3cyclictest15221-21snmpd07:34:061
192729962,3cyclictest15221-21snmpd07:15:151
192729961,3cyclictest17064-21dump-pmu-power08:15:001
192729960,6cyclictest0-21swapper/110:35:421
192729960,6cyclictest0-21swapper/109:41:041
192729960,5cyclictest275-21systemd-journal11:10:231
192729960,2cyclictest275-21systemd-journal10:45:011
192729960,0cyclictest0-21swapper/109:48:331
192729960,0cyclictest0-21swapper/109:35:401
192729960,0cyclictest0-21swapper/109:20:521
192679966,0cyclictest0-21swapper/011:11:050
192679966,0cyclictest0-21swapper/010:55:410
192679963,2cyclictest6540-21ssh11:02:070
192679963,2cyclictest5214-21ssh09:25:440
192679963,2cyclictest504-21dbus-daemon07:27:110
192679963,2cyclictest29146-21cat08:40:150
192679963,2cyclictest28021-21sh11:34:210
192679963,2cyclictest28005-21ssh11:53:140
192679963,2cyclictest19907-21ssh10:31:500
192679963,2cyclictest15727-21cat12:05:130
192679963,2cyclictest15221-21snmpd12:00:260
192679963,2cyclictest15221-21snmpd10:40:540
192679963,1cyclictest0-21swapper/011:17:020
192679962,3cyclictest7478-21awk09:05:110
192679962,3cyclictest5068-21sed11:20:170
192679962,3cyclictest5068-21sed11:20:170
192679962,3cyclictest29834-21gltestperf07:30:150
192679962,3cyclictest275-21systemd-journal11:59:100
192679962,3cyclictest26742-21ls12:30:150
192679962,3cyclictest21514-21cron08:25:000
192679962,3cyclictest15221-21snmpd11:06:570
192679962,3cyclictest15221-21snmpd08:58:380
192679962,3cyclictest15221-21snmpd08:37:380
192679962,3cyclictest15221-21snmpd08:26:050
192679962,3cyclictest15221-21snmpd08:15:020
192679962,3cyclictest15221-21snmpd08:12:490
192679962,3cyclictest15221-21snmpd07:59:430
192679962,3cyclictest15221-21snmpd07:40:250
192679962,3cyclictest15221-21snmpd07:39:460
192679962,1cyclictest0-21swapper/012:20:430
192679962,1cyclictest0-21swapper/011:40:030
192679962,1cyclictest0-21swapper/010:00:170
192679961,3cyclictest275-21systemd-journal09:40:110
192679961,3cyclictest275-21systemd-journal07:50:140
192679960,6cyclictest9442-21diskmemload09:34:580
192679960,6cyclictest9442-21diskmemload09:34:580
192679960,6cyclictest0-21swapper/009:12:280
17459260,0sleep10-21swapper/110:11:061
17003260,0sleep20-21swapper/211:46:202
1044260,0sleep10-21swapper/111:18:121
32125250,0sleep00-21swapper/012:15:010
192809953,1cyclictest13084-21wc08:05:123
192809952,2cyclictest32507-21cat07:35:163
192809952,2cyclictest28727-21cat08:40:133
192809952,2cyclictest25551-21cat07:20:153
192809952,2cyclictest19034-21chrt08:17:113
192809952,2cyclictest15221-21snmpd09:25:033
192809951,3cyclictest5243-21cat09:00:133
192809951,3cyclictest15460-21cat08:10:123
192809950,4cyclictest32384-21apt-get12:15:123
192769953,1cyclictest16230-21cpu10:30:142
192769952,2cyclictest4299-21seq08:55:282
192769952,2cyclictest32310-21taskset08:45:542
192769952,2cyclictest30002-21cat07:30:162
192769952,2cyclictest25912-21rm10:55:072
192769952,2cyclictest19821-21cat08:20:132
192769952,2cyclictest17447-21rm12:25:102
192769952,2cyclictest17391-21sh10:50:062
192769952,2cyclictest13276-21forks08:05:132
192769952,2cyclictest12650-21ssh11:05:202
192769951,3cyclictest28657-21cat11:15:162
192769951,3cyclictest25602-21/usr/sbin/munin07:20:162
192769951,3cyclictest19770-21cat07:10:122
192769951,3cyclictest15221-21snmpd07:25:122
192769950,4cyclictest6502-21expr10:05:112
192769950,3cyclictest275-21systemd-journal08:00:002
192769950,3cyclictest25695-21ssh12:30:012
192729953,1cyclictest32120-21cat07:35:131
192729953,1cyclictest10708-21ssh11:05:041
192729952,2cyclictest9070-21cat07:55:161
192729952,2cyclictest7332-21gzip07:50:191
192729952,2cyclictest5624-21cat09:00:151
192729952,2cyclictest5451-21sh11:40:111
192729952,2cyclictest4258-21cat07:45:121
192729952,2cyclictest25211-21/usr/sbin/munin08:30:211
192729952,2cyclictest24208-21ntp_kernel_err10:15:161
192729952,2cyclictest21979-21cat08:25:121
192729952,2cyclictest15221-21snmpd11:00:071
192729952,2cyclictest11874-21smart_sda08:00:191
192729952,2cyclictest0-21swapper/112:25:011
192729950,3cyclictest275-21systemd-journal08:35:031
192679952,2cyclictest6004-21gdbus10:05:010
192679952,2cyclictest3947-21sshd07:45:060
192679952,2cyclictest27403-21head09:20:110
192679952,2cyclictest25120-21expr07:20:130
192679952,2cyclictest23629-21sh12:10:000
192679952,2cyclictest2059-21cpuspeed12:35:110
192679952,2cyclictest19633-21ssh09:35:010
192679952,2cyclictest15221-21snmpd10:20:060
192679952,2cyclictest15221-21snmpd09:00:020
192679952,2cyclictest13134-21expr08:05:120
192679951,3cyclictest9008-21ssh10:45:050
192679951,3cyclictest10942-21expr08:00:130
192679951,3cyclictest0-21swapper/010:25:060
192679950,4cyclictest422-21/usr/sbin/munin08:50:150
1048250,0sleep10-21swapper/110:20:221
192809940,3cyclictest29304-21taskset07:30:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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