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2026-09-18 - 00:13
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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
Characteristics of the highest latencies:
System rack1slot1.osadl.org (updated Thu Sep 17, 2026 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
165032201161,26sleep30-21swapper/307:08:283
165522200130,23sleep00-21swapper/007:09:050
164052198158,26sleep20-21swapper/207:07:092
163772197160,24sleep10-21swapper/107:06:491
66522670,0sleep00-21swapper/012:10:140
103812620,0sleep10-21swapper/112:15:161
103812620,0sleep10-21swapper/112:15:151
16721992321,1cyclictest28-21ksoftirqd/208:35:002
16721991514,1cyclictest28-21ksoftirqd/212:14:112
1672899140,13cyclictest14135-21ssh11:35:113
16721991412,1cyclictest28-21ksoftirqd/207:20:012
16721991311,1cyclictest28-21ksoftirqd/207:39:592
16728991212,0cyclictest0-21swapper/310:48:363
1672199123,7cyclictest28-21ksoftirqd/210:38:192
16721991211,1cyclictest28-21ksoftirqd/209:55:162
16721991211,1cyclictest28-21ksoftirqd/209:52:322
262242110,0sleep226226-21unixbench-2d11:50:212
211922110,0sleep30-21swapper/310:57:443
1672199119,1cyclictest28-21ksoftirqd/212:00:142
1672199119,1cyclictest28-21ksoftirqd/210:25:122
1672199119,1cyclictest28-21ksoftirqd/210:15:192
16721991110,1cyclictest28-21ksoftirqd/211:40:112
16721991110,1cyclictest28-21ksoftirqd/211:33:242
16721991110,1cyclictest28-21ksoftirqd/211:33:242
16721991110,1cyclictest28-21ksoftirqd/211:00:012
16721991110,1cyclictest28-21ksoftirqd/210:40:192
16721991110,1cyclictest28-21ksoftirqd/209:20:122
1670999119,1cyclictest9-21ksoftirqd/009:59:280
16709991111,0cyclictest0-21swapper/010:47:060
1672899108,1cyclictest17113-21entropy12:25:143
1672199109,1cyclictest28-21ksoftirqd/211:38:452
1672199109,1cyclictest28-21ksoftirqd/211:27:452
1672199109,1cyclictest28-21ksoftirqd/211:05:212
1672199109,1cyclictest28-21ksoftirqd/210:05:162
1672199109,1cyclictest28-21ksoftirqd/209:30:152
1672199109,1cyclictest28-21ksoftirqd/209:25:122
1672199109,1cyclictest28-21ksoftirqd/207:45:002
1672199108,1cyclictest28-21ksoftirqd/212:15:132
1672199108,1cyclictest28-21ksoftirqd/212:15:122
1672199108,1cyclictest28-21ksoftirqd/210:20:112
16721991010,0cyclictest28-21ksoftirqd/211:15:112
16721991010,0cyclictest28-21ksoftirqd/211:14:132
1672199100,3cyclictest0-21swapper/207:30:112
1670999100,6cyclictest9561-21diskmemload10:10:220
167289998,1cyclictest35-21ksoftirqd/307:35:003
167289997,1cyclictest35-21ksoftirqd/308:05:503
167289997,1cyclictest35-21ksoftirqd/308:05:503
167219998,1cyclictest28-21ksoftirqd/212:05:142
167219998,1cyclictest28-21ksoftirqd/211:56:562
167219998,1cyclictest28-21ksoftirqd/211:20:192
167219998,1cyclictest28-21ksoftirqd/211:00:172
167219998,1cyclictest28-21ksoftirqd/210:30:172
167219998,1cyclictest28-21ksoftirqd/210:13:042
167219998,1cyclictest28-21ksoftirqd/210:03:512
167219998,1cyclictest28-21ksoftirqd/209:35:092
167219998,1cyclictest28-21ksoftirqd/209:15:152
167219998,1cyclictest28-21ksoftirqd/208:45:212
167219997,1cyclictest28-21ksoftirqd/212:30:172
167219997,1cyclictest28-21ksoftirqd/208:44:592
167219997,1cyclictest28-21ksoftirqd/208:25:112
167219997,1cyclictest28-21ksoftirqd/207:20:142
167219997,1cyclictest28-21ksoftirqd/207:15:012
167219997,1cyclictest24544-21memory12:35:162
167099997,1cyclictest693-21runrttasks10:31:220
167289986,1cyclictest11301-21snmpd11:47:553
167289986,1cyclictest11301-21snmpd10:10:003
167289986,1cyclictest11301-21snmpd09:47:543
167289986,1cyclictest11301-21snmpd09:44:243
167289986,1cyclictest11301-21snmpd08:24:493
167289986,1cyclictest11301-21snmpd08:17:153
167289983,2cyclictest0-21swapper/312:33:203
167289982,3cyclictest9561-21diskmemload10:40:113
167289980,6cyclictest0-21swapper/311:25:113
167289980,5cyclictest16899-21apt-get09:20:103
167289980,3cyclictest11301-21snmpd09:54:373
167289980,2cyclictest4825-21cron09:00:003
167289980,1cyclictest13337-21aten2.4-expect09:15:113
167219988,0cyclictest28-21ksoftirqd/210:50:062
167219987,1cyclictest28-21ksoftirqd/212:21:452
167219987,1cyclictest28-21ksoftirqd/209:45:402
167219987,1cyclictest28-21ksoftirqd/209:40:132
167219987,1cyclictest28-21ksoftirqd/209:05:012
167219987,1cyclictest28-21ksoftirqd/208:50:142
167219986,1cyclictest61650irq/122-eno111:45:022
167219986,1cyclictest61650irq/122-eno108:20:012
167219986,1cyclictest61650irq/122-eno107:54:592
167219986,1cyclictest28-21ksoftirqd/210:45:112
167219986,1cyclictest28-21ksoftirqd/207:25:122
167219980,7cyclictest25498-21apt-get08:35:122
167099987,1cyclictest312652sleep011:11:240
167099987,1cyclictest22208-21/usr/sbin/munin11:00:150
167099986,1cyclictest9-21ksoftirqd/008:40:000
167099986,1cyclictest2701-21ssh09:45:140
167099986,1cyclictest11301-21snmpd08:20:250
167099986,1cyclictest11301-21snmpd08:09:390
167099986,1cyclictest11301-21snmpd08:09:390
167099982,3cyclictest23294-21perf12:35:000
167099982,3cyclictest11301-21snmpd12:02:250
167099981,6cyclictest31838-21ssh09:40:140
167099980,7cyclictest28430-21irqstats09:35:150
167099980,4cyclictest3492-21perf11:20:000
30382270,1sleep10-21swapper/109:38:571
167289975,2cyclictest15987-21/usr/sbin/munin10:05:203
167289975,1cyclictest11301-21snmpd12:08:023
167289975,1cyclictest11301-21snmpd11:00:483
167289975,1cyclictest11301-21snmpd10:27:523
167289975,1cyclictest11301-21snmpd09:03:233
167289975,1cyclictest11301-21snmpd08:35:193
167289975,1cyclictest11301-21snmpd08:02:513
167289975,1cyclictest11301-21snmpd07:51:273
167289975,1cyclictest11301-21snmpd07:12:203
167289973,1cyclictest22720-21awk08:30:003
167289972,4cyclictest9561-21diskmemload09:13:143
167289971,3cyclictest9561-21diskmemload11:31:553
167289971,3cyclictest9561-21diskmemload11:31:543
167289971,3cyclictest0-21swapper/309:57:563
167289971,2cyclictest0-21swapper/311:10:473
167289970,5cyclictest0-21swapper/312:14:243
167289970,4cyclictest0-21swapper/309:38:303
167289970,3cyclictest0-21swapper/312:20:103
167289970,2cyclictest23581-21aten2.4-expect12:35:123
167289970,2cyclictest0-21swapper/311:07:093
167219976,1cyclictest28-21ksoftirqd/212:25:132
167219976,1cyclictest23491-21kworker/2:009:10:272
167219976,1cyclictest11301-21snmpd09:05:112
167219975,1cyclictest28-21ksoftirqd/207:45:132
167219975,1cyclictest11301-21snmpd07:58:302
167119971,6cyclictest0-21swapper/110:31:111
167119971,1cyclictest0-21swapper/107:44:151
167119970,7cyclictest0-21swapper/109:11:031
167119970,4cyclictest0-21swapper/112:05:131
167119970,1cyclictest0-21swapper/110:27:231
167119970,1cyclictest0-21swapper/109:04:141
167099975,1cyclictest9-21ksoftirqd/008:30:100
167099975,1cyclictest17796-21cpu11:40:120
167099975,1cyclictest12575-21telnet10:00:120
167099975,1cyclictest11301-21snmpd12:16:350
167099975,1cyclictest11301-21snmpd12:16:340
167099975,1cyclictest11301-21snmpd09:02:470
167099975,1cyclictest11301-21snmpd07:57:360
167099975,1cyclictest11301-21snmpd07:45:390
167099975,1cyclictest11301-21snmpd07:30:320
167099973,2cyclictest548-21systemd-logind07:15:010
167099972,3cyclictest9561-21diskmemload11:33:570
167099972,3cyclictest9561-21diskmemload11:33:570
167099971,6cyclictest17948-21ssh10:54:080
167099971,5cyclictest32606-1kworker/0:1H08:40:590
167099971,1cyclictest18699-21ssh10:55:110
167099971,1cyclictest14750-1kworker/u9:110:09:450
167099970,6cyclictest9709-21ssh11:27:450
167099970,6cyclictest9561-21diskmemload12:20:180
167099970,6cyclictest8871-21ssh10:40:140
167099970,6cyclictest6561-21ssh10:36:280
167099970,6cyclictest6355-21ssh11:23:100
167099970,6cyclictest29907-21ssh11:55:400
167099970,6cyclictest24056-21ssh09:30:110
167099970,6cyclictest21197-21ssh09:25:140
167099970,6cyclictest21090-21df_inode08:25:130
167099970,6cyclictest18609-1kworker/u9:209:20:560
167099970,6cyclictest0-21swapper/012:35:150
167099970,6cyclictest0-21swapper/010:20:160
167099970,5cyclictest2714-21apt-get08:55:110
167099970,4cyclictest22542-21smart_sda11:45:190
167099970,1cyclictest9794-21ssh09:10:050
167099970,1cyclictest31227-21missed_timers08:45:160
167099970,1cyclictest22429-21telnet07:20:130
167099970,1cyclictest18838-21ssh12:26:550
167099970,1cyclictest0-21swapper/011:50:150
167099970,1cyclictest0-21swapper/009:15:130
167289965,1cyclictest6250-21ssh10:35:283
167289965,1cyclictest25193-21ntpq09:30:163
167289965,1cyclictest2108-21ntpq10:30:183
167289964,1cyclictest11301-21snmpd08:41:023
167289964,1cyclictest11301-21snmpd08:31:003
167289964,0cyclictest9561-21diskmemload10:20:063
167289963,1cyclictest9561-21diskmemload11:41:373
167289962,3cyclictest31582-21apt-get12:00:113
167289962,1cyclictest7645-21pmu-power07:55:183
167289961,4cyclictest20429-21apt-get09:25:103
167289961,3cyclictest9561-21diskmemload11:23:333
167289961,2cyclictest21054-21netstat07:15:163
167289960,4cyclictest0-21swapper/311:17:393
167289960,3cyclictest9608-21apt-get12:15:123
167289960,3cyclictest9608-21apt-get12:15:123
167289960,3cyclictest0-21swapper/310:15:303
167289960,3cyclictest0-21swapper/310:02:233
167289960,2cyclictest0-21swapper/311:50:213
167289960,2cyclictest0-21swapper/310:50:173
167219966,0cyclictest61650irq/122-eno108:20:142
167219966,0cyclictest61650irq/122-eno108:05:042
167219966,0cyclictest61650irq/122-eno108:05:042
167219965,1cyclictest28-21ksoftirqd/208:55:092
167219965,1cyclictest23491-21kworker/2:008:10:112
167219961,1cyclictest0-21swapper/208:00:082
167119963,3cyclictest0-21swapper/108:47:411
167119961,3cyclictest0-21swapper/108:55:111
167119960,6cyclictest0-21swapper/112:13:341
167119960,6cyclictest0-21swapper/111:36:381
167119960,6cyclictest0-21swapper/111:32:071
167119960,6cyclictest0-21swapper/111:32:071
167119960,6cyclictest0-21swapper/109:33:271
167119960,6cyclictest0-21swapper/108:54:381
167119960,6cyclictest0-21swapper/108:08:451
167119960,6cyclictest0-21swapper/108:08:441
167119960,6cyclictest0-21swapper/107:34:431
167119960,6cyclictest0-21swapper/107:26:531
167119960,5cyclictest0-21swapper/108:32:551
167119960,4cyclictest0-21swapper/112:20:111
167119960,4cyclictest0-21swapper/111:22:201
167119960,4cyclictest0-21swapper/110:16:331
167119960,3cyclictest0-21swapper/111:05:121
167119960,3cyclictest0-21swapper/110:39:441
167119960,3cyclictest0-21swapper/110:01:541
167119960,3cyclictest0-21swapper/109:59:171
167119960,2cyclictest0-21swapper/111:00:101
167119960,2cyclictest0-21swapper/109:50:451
167119960,1cyclictest0-21swapper/111:50:161
167119960,1cyclictest0-21swapper/111:13:241
167099965,1cyclictest2596-21ssh12:05:010
167099965,1cyclictest16700-21cyclictest10:25:010
167099965,1cyclictest11301-21snmpd08:11:160
167099960,6cyclictest0-21swapper/007:41:470
167099960,5cyclictest16967-21ssh11:38:500
167099960,5cyclictest0-21swapper/010:15:140
167099960,3cyclictest0-21swapper/007:50:110
167099960,2cyclictest0-21swapper/011:05:170
167099960,2cyclictest0-21swapper/008:00:140
167099960,1cyclictest5549-21ssh09:50:110
167099960,0cyclictest0-21swapper/008:16:330
22165250,0sleep10-21swapper/111:45:151
167289954,1cyclictest11301-21snmpd08:10:433
167289954,1cyclictest11301-21snmpd07:42:313
167289953,1cyclictest28277-21tr11:55:113
167289953,1cyclictest24677-21sshd07:25:043
167289953,1cyclictest1022-21fschecks_time08:50:153
167289951,3cyclictest7442-21apt-get09:05:123
167289950,5cyclictest0-21swapper/307:46:303
167289950,5cyclictest0-21swapper/307:35:103
167289950,0cyclictest0-21swapper/307:23:493
167119955,0cyclictest0-21swapper/112:35:281
167119955,0cyclictest0-21swapper/110:54:421
167119955,0cyclictest0-21swapper/108:15:251
167119953,1cyclictest15399-21chrt08:12:251
167119950,5cyclictest0-21swapper/111:57:591
167119950,5cyclictest0-21swapper/110:10:171
167119950,5cyclictest0-21swapper/110:07:021
167119950,5cyclictest0-21swapper/109:21:131
167119950,5cyclictest0-21swapper/108:26:161
167119950,5cyclictest0-21swapper/107:57:291
167119950,4cyclictest0-21swapper/112:00:571
167119950,4cyclictest0-21swapper/110:56:081
167119950,3cyclictest0-21swapper/112:33:241
167119950,3cyclictest0-21swapper/111:25:351
167119950,3cyclictest0-21swapper/107:15:011
167119950,2cyclictest0-21swapper/112:25:181
167119950,2cyclictest0-21swapper/111:16:461
167119950,2cyclictest0-21swapper/110:40:111
167119950,2cyclictest0-21swapper/109:40:121
167119950,2cyclictest0-21swapper/109:25:201
167119950,2cyclictest0-21swapper/109:16:051
167119950,2cyclictest0-21swapper/107:50:171
167119950,0cyclictest0-21swapper/109:07:511
167119950,0cyclictest0-21swapper/108:43:381
167119950,0cyclictest0-21swapper/107:37:311
167099954,1cyclictest19955-21/usr/sbin/munin07:15:120
167099954,1cyclictest11301-21snmpd07:37:170
167099954,1cyclictest11301-21snmpd07:27:020
167099953,1cyclictest310-21/usr/sbin/munin08:50:170
167099950,0cyclictest0-21swapper/009:05:480
167289940,3cyclictest30520-21tr08:45:123
167119940,4cyclictest0-21swapper/109:45:191
167119940,4cyclictest0-21swapper/108:23:361
167119940,3cyclictest0-21swapper/110:48:141
167119940,3cyclictest0-21swapper/107:50:001
167119940,2cyclictest0-21swapper/111:40:161
167119940,2cyclictest0-21swapper/110:20:061
167119940,2cyclictest0-21swapper/108:35:121
167119940,0cyclictest0-21swapper/108:02:161
167119931,1cyclictest223332sleep107:20:121
167119931,1cyclictest0-21swapper/107:15:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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