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2026-04-04 - 13:34
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Sat Apr 04, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
173152214174,26sleep10-21swapper/107:05:281
174602203149,22sleep20-21swapper/207:07:232
175752199160,25sleep30-21swapper/307:08:523
174882198161,24sleep00-21swapper/007:07:450
273352630,0sleep10-21swapper/107:25:191
134702230,1sleep2271rcuc/209:12:382
17753991918,1cyclictest28-21ksoftirqd/212:30:212
17753991818,0cyclictest28-21ksoftirqd/212:03:562
17753991817,0cyclictest28-21ksoftirqd/209:55:122
17753991717,0cyclictest28-21ksoftirqd/211:15:122
17753991716,1cyclictest28-21ksoftirqd/212:10:002
17753991716,1cyclictest28-21ksoftirqd/210:40:202
17753991716,1cyclictest28-21ksoftirqd/210:35:202
17753991716,1cyclictest28-21ksoftirqd/209:35:162
17753991716,1cyclictest28-21ksoftirqd/209:00:152
17753991714,3cyclictest28-21ksoftirqd/212:25:172
17753991714,3cyclictest28-21ksoftirqd/209:17:152
1775399169,5cyclictest28-21ksoftirqd/210:50:172
17753991615,1cyclictest28-21ksoftirqd/208:05:122
17753991615,1cyclictest28-21ksoftirqd/207:45:212
17753991614,1cyclictest28-21ksoftirqd/211:08:342
17753991515,0cyclictest28-21ksoftirqd/211:24:222
17753991515,0cyclictest28-21ksoftirqd/209:20:162
17753991514,1cyclictest28-21ksoftirqd/211:52:552
17753991514,1cyclictest28-21ksoftirqd/210:33:062
17753991514,1cyclictest28-21ksoftirqd/210:19:592
17753991514,1cyclictest28-21ksoftirqd/210:11:242
17753991514,1cyclictest28-21ksoftirqd/210:00:302
17753991514,0cyclictest28-21ksoftirqd/207:40:112
17753991513,1cyclictest28-21ksoftirqd/208:00:132
17753991414,0cyclictest28-21ksoftirqd/207:30:112
17753991413,1cyclictest28-21ksoftirqd/209:50:202
17753991413,1cyclictest28-21ksoftirqd/208:40:142
17753991411,2cyclictest28-21ksoftirqd/211:40:012
1775399137,5cyclictest28-21ksoftirqd/212:35:112
1775399135,1cyclictest28-21ksoftirqd/211:32:362
17753991313,0cyclictest28-21ksoftirqd/210:55:182
17753991313,0cyclictest28-21ksoftirqd/210:46:182
17753991313,0cyclictest28-21ksoftirqd/210:46:172
17753991313,0cyclictest28-21ksoftirqd/209:33:032
17753991312,1cyclictest28-21ksoftirqd/212:09:592
17753991312,1cyclictest28-21ksoftirqd/210:05:152
17753991312,1cyclictest28-21ksoftirqd/207:25:012
17753991310,3cyclictest28-21ksoftirqd/211:45:102
175842130,0sleep10-21swapper/108:15:131
175802130,1sleep317555-21perf10:00:013
17757991212,0cyclictest35-21ksoftirqd/311:20:103
17757991211,1cyclictest35-21ksoftirqd/312:19:593
17753991212,0cyclictest28-21ksoftirqd/211:12:142
17753991211,1cyclictest28-21ksoftirqd/212:15:012
17753991211,1cyclictest28-21ksoftirqd/211:40:132
17753991211,1cyclictest28-21ksoftirqd/210:29:012
17753991211,1cyclictest28-21ksoftirqd/209:50:002
17753991211,1cyclictest28-21ksoftirqd/209:30:002
17753991211,1cyclictest28-21ksoftirqd/208:35:002
17753991211,1cyclictest28-21ksoftirqd/208:20:182
17753991211,1cyclictest28-21ksoftirqd/208:20:002
17753991211,1cyclictest28-21ksoftirqd/208:00:002
17753991211,1cyclictest28-21ksoftirqd/207:40:002
17753991211,1cyclictest28-21ksoftirqd/207:15:122
17753991210,1cyclictest28-21ksoftirqd/212:20:122
17753991210,1cyclictest28-21ksoftirqd/210:20:162
17753991210,1cyclictest28-21ksoftirqd/209:00:002
17753991210,1cyclictest28-21ksoftirqd/208:29:592
17753991210,1cyclictest28-21ksoftirqd/208:15:002
17753991210,1cyclictest28-21ksoftirqd/207:25:012
17737991212,0cyclictest9-21ksoftirqd/012:10:190
17737991211,1cyclictest0-21swapper/011:20:090
1775799119,1cyclictest26454-21ssh10:51:473
1775399119,1cyclictest28-21ksoftirqd/211:25:192
1775399119,1cyclictest28-21ksoftirqd/211:00:012
1775399119,1cyclictest28-21ksoftirqd/208:55:012
1775399119,1cyclictest28-21ksoftirqd/208:40:002
1775399119,1cyclictest28-21ksoftirqd/207:10:192
17753991110,1cyclictest28-21ksoftirqd/211:59:592
17753991110,1cyclictest28-21ksoftirqd/209:40:112
17753991110,1cyclictest28-21ksoftirqd/207:55:012
1773799114,6cyclictest16921-21perf08:15:000
1773799113,4cyclictest3800-21perf12:30:000
17737991111,0cyclictest0-21swapper/011:06:410
1775399109,1cyclictest28-21ksoftirqd/208:45:122
1775399109,0cyclictest28-21ksoftirqd/209:05:142
1773799109,1cyclictest9-21ksoftirqd/009:45:130
1773799109,1cyclictest9-21ksoftirqd/009:35:160
1773799109,1cyclictest9-21ksoftirqd/009:30:140
1773799108,1cyclictest9-21ksoftirqd/011:15:130
17737991010,0cyclictest9-21ksoftirqd/009:40:130
6713290,0sleep30-21swapper/311:09:263
177579998,1cyclictest35-21ksoftirqd/312:14:593
177579998,1cyclictest35-21ksoftirqd/310:14:593
177379999,0cyclictest9-21ksoftirqd/008:15:190
177379998,1cyclictest9-21ksoftirqd/012:25:010
177379998,1cyclictest9-21ksoftirqd/012:00:110
177379998,1cyclictest9-21ksoftirqd/010:00:140
177379998,1cyclictest9-21ksoftirqd/008:30:140
177379998,1cyclictest9-21ksoftirqd/007:45:190
177379997,1cyclictest9-21ksoftirqd/011:55:000
177379991,4cyclictest13707-21ls09:55:010
177379990,4cyclictest28729-21cat08:40:010
177579987,1cyclictest35-21ksoftirqd/311:35:003
177579987,1cyclictest35-21ksoftirqd/310:10:003
177579987,1cyclictest29911-21perf11:40:003
177579986,1cyclictest35-21ksoftirqd/310:35:003
177579986,1cyclictest35-21ksoftirqd/307:15:003
177579982,1cyclictest27602-21/usr/sbin/munin07:25:203
177579981,5cyclictest3516-21kworker/u8:011:55:383
177379988,0cyclictest9-21ksoftirqd/011:45:000
177379987,1cyclictest9-21ksoftirqd/012:30:140
177379987,1cyclictest9-21ksoftirqd/012:15:160
177379987,1cyclictest9-21ksoftirqd/011:35:130
177379987,1cyclictest9-21ksoftirqd/010:20:120
177379987,1cyclictest9-21ksoftirqd/009:00:110
177379987,1cyclictest9-21ksoftirqd/008:00:130
177379986,1cyclictest9-21ksoftirqd/011:55:130
177379986,1cyclictest9-21ksoftirqd/007:15:000
177379984,3cyclictest15670-21unixbench_multi09:55:200
177379983,5cyclictest7497-21cut07:55:010
177379983,4cyclictest7949-21perl11:10:140
177379980,7cyclictest28665-21perl10:55:160
177379980,7cyclictest15375-21fschecks_count09:15:140
177379980,7cyclictest10627-21diskmemload10:28:070
177379980,1cyclictest20365-21ssh12:09:430
32517270,0sleep00-21swapper/010:18:000
177579977,0cyclictest35-21ksoftirqd/310:15:133
177579975,1cyclictest9865-21perf09:50:003
177579975,1cyclictest35-21ksoftirqd/308:09:593
177579975,1cyclictest35-21ksoftirqd/308:00:123
177579975,1cyclictest35-21ksoftirqd/307:24:593
177579975,1cyclictest11009-21ssh12:38:513
177579973,3cyclictest4730-21apt-get07:45:473
177579970,6cyclictest0-21swapper/311:25:123
177579970,4cyclictest10627-21diskmemload11:13:303
177459976,1cyclictest0-21swapper/108:50:011
177459970,7cyclictest0-21swapper/111:02:521
177459970,5cyclictest0-21swapper/110:11:331
177459970,4cyclictest0-21swapper/110:09:061
177379977,0cyclictest9-21ksoftirqd/011:30:120
177379976,1cyclictest9-21ksoftirqd/010:35:140
177379976,1cyclictest9-21ksoftirqd/009:25:160
177379976,1cyclictest9-21ksoftirqd/007:40:140
177379976,1cyclictest9-21ksoftirqd/007:25:140
177379975,1cyclictest9833-21memory10:30:160
177379971,6cyclictest28968-21ssh10:14:200
177379971,6cyclictest25139-21ssh10:09:530
177379971,5cyclictest8402-21ssh12:35:130
177379971,1cyclictest9097-21/usr/sbin/munin07:55:210
177379970,6cyclictest31504-21apt-get11:00:010
177379970,6cyclictest207652sleep011:26:040
177379970,6cyclictest16616-21ssh10:40:120
177379970,6cyclictest0-21swapper/010:52:100
177379970,6cyclictest0-21swapper/009:10:120
177379970,6cyclictest0-21swapper/008:50:130
177379970,6cyclictest0-21swapper/008:40:120
177379970,1cyclictest22605-21ssh10:46:430
177379970,1cyclictest22605-21ssh10:46:430
177379970,1cyclictest224762sleep009:24:240
177379970,1cyclictest0-21swapper/011:45:120
8187260,0sleep10-21swapper/109:45:381
18323260,0sleep10-21swapper/111:24:471
177579965,1cyclictest7436-21sshd07:54:573
177579965,1cyclictest7087-21ssh10:26:103
177579965,1cyclictest4520-21ssh09:41:043
177579965,1cyclictest3437-21ssh11:45:303
177579965,1cyclictest32170-21ssh11:40:503
177579965,1cyclictest31502-21ssh12:22:463
177579965,1cyclictest28960-21ssh09:30:423
177579965,1cyclictest25100-21cat08:30:143
177579965,1cyclictest22556-21ssh10:46:353
177579965,1cyclictest22556-21ssh10:46:343
177579965,1cyclictest22236-21ssh09:23:533
177579965,1cyclictest20056-21ssh10:01:293
177579965,1cyclictest19543-21ssh12:07:323
177579965,1cyclictest17136-21ssh10:40:143
177579965,1cyclictest15389-21ssh12:01:403
177579965,1cyclictest15290-21ssh10:37:393
177579965,1cyclictest14775-21ssh09:15:063
177579965,1cyclictest12877-21ssh11:15:293
177579964,1cyclictest35-21ksoftirqd/307:19:593
177579963,2cyclictest693-21runrttasks09:36:023
177579960,4cyclictest13690-21perf09:55:003
177579960,4cyclictest0-21swapper/311:54:423
177579960,4cyclictest0-21swapper/310:58:393
177579960,3cyclictest0-21swapper/309:26:023
177579960,2cyclictest536-21cstates12:25:143
177579960,1cyclictest7388-21head09:00:163
177579960,1cyclictest0-21swapper/311:01:183
177459966,0cyclictest0-21swapper/110:46:301
177459966,0cyclictest0-21swapper/110:46:291
177459965,1cyclictest0-21swapper/107:55:211
177459961,2cyclictest0-21swapper/111:15:171
177459960,6cyclictest0-21swapper/111:57:141
177459960,5cyclictest0-21swapper/109:40:121
177459960,5cyclictest0-21swapper/107:35:161
177459960,4cyclictest0-21swapper/112:16:251
177459960,4cyclictest0-21swapper/111:10:291
177459960,3cyclictest0-21swapper/111:50:281
177459960,3cyclictest0-21swapper/111:35:121
177459960,2cyclictest0-21swapper/111:26:281
177459960,2cyclictest0-21swapper/109:26:561
177459960,1cyclictest0-21swapper/111:46:471
177379965,1cyclictest31791-21ntp_states07:35:170
177379965,1cyclictest18462-21diskstats07:10:130
177379960,6cyclictest0-21swapper/008:05:120
177379960,3cyclictest0-21swapper/007:20:130
177379960,0cyclictest0-21swapper/008:59:580
177379960,0cyclictest0-21swapper/008:25:100
177379960,0cyclictest0-21swapper/007:30:490
13118260,0sleep10-21swapper/109:11:441
177579954,1cyclictest35-21ksoftirqd/308:24:213
177579953,1cyclictest32745-21sh07:40:013
177579953,1cyclictest10618-21cron09:10:003
177579952,1cyclictest240-21systemd-journal08:14:543
177579952,1cyclictest240-21systemd-journal07:59:563
177579951,0cyclictest10627-21diskmemload10:20:213
177579950,4cyclictest4637-21kworker/3:007:45:013
177579950,3cyclictest0-21swapper/312:30:113
177579950,2cyclictest0-21swapper/309:10:533
177579950,1cyclictest29474-21/usr/sbin/munin07:30:183
177579950,1cyclictest28974-21aten_r1power_en08:40:133
177459955,0cyclictest0-21swapper/110:51:071
177459955,0cyclictest0-21swapper/110:26:541
177459953,1cyclictest0-21swapper/110:23:161
177459952,1cyclictest0-21swapper/112:13:071
177459951,2cyclictest0-21swapper/108:55:131
177459951,2cyclictest0-21swapper/107:10:141
177459951,0cyclictest0-21swapper/109:55:361
177459950,5cyclictest0-21swapper/109:15:591
177459950,5cyclictest0-21swapper/109:05:581
177459950,5cyclictest0-21swapper/108:50:151
177459950,5cyclictest0-21swapper/108:39:171
177459950,4cyclictest0-21swapper/110:32:511
177459950,4cyclictest0-21swapper/107:30:201
177459950,3cyclictest0-21swapper/112:37:241
177459950,3cyclictest0-21swapper/112:30:211
177459950,3cyclictest0-21swapper/112:25:181
177459950,3cyclictest0-21swapper/110:57:151
177459950,3cyclictest0-21swapper/110:35:171
177459950,3cyclictest0-21swapper/109:38:441
177459950,2cyclictest0-21swapper/112:21:521
177459950,2cyclictest0-21swapper/112:00:121
177459950,2cyclictest0-21swapper/111:05:391
177459950,2cyclictest0-21swapper/110:40:021
177459950,2cyclictest0-21swapper/110:18:121
177459950,2cyclictest0-21swapper/109:51:241
177459950,2cyclictest0-21swapper/107:53:261
177459950,1cyclictest0-21swapper/110:00:131
177459950,1cyclictest0-21swapper/108:30:191
177459950,0cyclictest0-21swapper/109:30:181
177379955,0cyclictest9-21ksoftirqd/008:20:170
177379950,1cyclictest0-21swapper/008:45:370
177379950,0cyclictest0-21swapper/009:06:010
177579943,1cyclictest0-21swapper/308:15:153
177579942,1cyclictest3599-21cut08:55:123
177579942,1cyclictest32178-21if_err_eno108:45:153
177579942,1cyclictest23557-21unixbench_singl08:25:193
177579942,1cyclictest1790-21fschecks_count08:50:153
177579940,1cyclictest240-21systemd-journal08:35:133
177459942,1cyclictest25354-21chrt07:23:271
177459941,1cyclictest0-21swapper/111:40:181
177459941,1cyclictest0-21swapper/108:40:121
177459941,1cyclictest0-21swapper/108:25:131
177459940,4cyclictest0-21swapper/111:30:131
177459940,4cyclictest0-21swapper/109:20:151
177459940,4cyclictest0-21swapper/108:01:481
177459940,3cyclictest0-21swapper/109:00:121
177459940,2cyclictest0-21swapper/108:05:181
177459940,1cyclictest0-21swapper/112:05:201
177459940,0cyclictest0-21swapper/108:14:591
177459931,1cyclictest0-21swapper/108:20:121
177459931,1cyclictest0-21swapper/107:45:111
177459931,1cyclictest0-21swapper/107:40:121
177459930,1cyclictest0-21swapper/107:15:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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