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2026-08-09 - 12:05
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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 Sun Aug 09, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
242822211172,25sleep30-21swapper/319:06:023
243732210156,42sleep00-21swapper/019:07:120
243272207146,23sleep10-21swapper/119:06:361
244222199158,27sleep20-21swapper/219:07:502
244292400,1sleep228-21ksoftirqd/223:35:192
24686991818,0cyclictest28-21ksoftirqd/221:25:202
24686991716,1cyclictest28-21ksoftirqd/219:10:202
236532170,0sleep10-21swapper/123:35:141
24686991615,1cyclictest28-21ksoftirqd/223:50:112
24686991615,1cyclictest28-21ksoftirqd/221:05:112
24686991615,1cyclictest28-21ksoftirqd/220:10:172
24686991614,1cyclictest28-21ksoftirqd/200:35:122
24676991612,4cyclictest0-21swapper/121:10:121
24686991514,1cyclictest28-21ksoftirqd/223:55:212
24686991514,1cyclictest28-21ksoftirqd/223:16:352
24686991514,1cyclictest28-21ksoftirqd/222:55:182
24686991514,1cyclictest28-21ksoftirqd/220:00:182
24686991513,1cyclictest28-21ksoftirqd/219:55:162
2468699148,4cyclictest28-21ksoftirqd/200:00:212
24686991414,0cyclictest28-21ksoftirqd/222:25:172
24686991413,1cyclictest28-21ksoftirqd/221:55:132
24686991413,1cyclictest28-21ksoftirqd/220:35:202
24686991413,1cyclictest28-21ksoftirqd/220:05:162
24686991412,1cyclictest28-21ksoftirqd/221:00:002
24686991412,1cyclictest28-21ksoftirqd/220:50:142
2468699138,4cyclictest28-21ksoftirqd/221:50:172
24686991313,0cyclictest28-21ksoftirqd/222:38:552
24686991313,0cyclictest28-21ksoftirqd/221:30:192
24686991313,0cyclictest28-21ksoftirqd/220:15:142
24686991312,1cyclictest28-21ksoftirqd/223:45:162
24686991312,1cyclictest28-21ksoftirqd/222:51:472
24686991312,1cyclictest28-21ksoftirqd/219:15:122
24686991312,1cyclictest28-21ksoftirqd/200:20:142
24686991311,1cyclictest28-21ksoftirqd/222:05:172
24686991311,1cyclictest28-21ksoftirqd/221:20:002
24686991311,1cyclictest28-21ksoftirqd/219:40:002
24691991210,1cyclictest35-21ksoftirqd/321:20:003
2468699129,3cyclictest28-21ksoftirqd/222:10:172
24686991212,0cyclictest28-21ksoftirqd/221:24:352
24686991212,0cyclictest28-21ksoftirqd/200:30:102
24686991211,1cyclictest28-21ksoftirqd/223:00:122
24686991211,1cyclictest28-21ksoftirqd/222:15:122
24686991211,1cyclictest28-21ksoftirqd/221:40:152
24686991211,1cyclictest28-21ksoftirqd/220:50:002
24686991211,1cyclictest28-21ksoftirqd/219:25:002
24686991211,1cyclictest28-21ksoftirqd/200:20:002
24686991210,1cyclictest28-21ksoftirqd/223:10:002
24686991210,1cyclictest28-21ksoftirqd/222:45:212
24686991210,1cyclictest28-21ksoftirqd/221:35:212
24686991210,1cyclictest28-21ksoftirqd/220:45:002
24686991210,1cyclictest28-21ksoftirqd/220:25:122
24686991210,1cyclictest28-21ksoftirqd/219:55:002
2467699120,0cyclictest0-21swapper/123:40:111
24691991110,1cyclictest35-21ksoftirqd/321:30:023
2468699119,1cyclictest28-21ksoftirqd/223:25:142
2468699119,1cyclictest28-21ksoftirqd/223:20:192
2468699119,1cyclictest28-21ksoftirqd/222:40:122
2468699119,1cyclictest28-21ksoftirqd/222:30:142
2468699119,1cyclictest28-21ksoftirqd/219:50:002
2468699119,1cyclictest28-21ksoftirqd/219:40:192
2468699119,1cyclictest28-21ksoftirqd/200:25:142
2468699119,1cyclictest28-21ksoftirqd/200:05:182
2468699118,1cyclictest28-21ksoftirqd/221:00:012
2468699116,4cyclictest28-21ksoftirqd/220:20:122
24686991111,0cyclictest28-21ksoftirqd/223:12:092
24686991111,0cyclictest28-21ksoftirqd/222:22:422
24686991110,1cyclictest28-21ksoftirqd/223:40:182
24686991110,1cyclictest28-21ksoftirqd/221:45:202
24686991110,1cyclictest28-21ksoftirqd/220:35:012
24686991110,1cyclictest28-21ksoftirqd/200:10:002
2469199109,1cyclictest35-21ksoftirqd/323:15:003
2469199109,1cyclictest35-21ksoftirqd/322:50:143
2469199109,1cyclictest35-21ksoftirqd/322:40:003
2468699109,1cyclictest28-21ksoftirqd/222:00:142
2468699109,1cyclictest28-21ksoftirqd/221:10:122
2468699109,1cyclictest28-21ksoftirqd/219:30:132
2468699108,1cyclictest28-21ksoftirqd/223:30:142
2468699108,1cyclictest28-21ksoftirqd/219:25:162
246919999,0cyclictest24427-21ntp_states23:35:193
246919998,1cyclictest35-21ksoftirqd/323:00:183
246919998,1cyclictest35-21ksoftirqd/319:45:143
246679995,2cyclictest11301-21snmpd19:53:160
246679992,6cyclictest20315-21perf22:45:000
246919988,0cyclictest35-21ksoftirqd/322:15:183
246919988,0cyclictest35-21ksoftirqd/321:40:193
246919988,0cyclictest35-21ksoftirqd/321:20:213
246919987,0cyclictest35-21ksoftirqd/321:30:163
246919986,1cyclictest11301-21snmpd23:20:593
246919986,1cyclictest11301-21snmpd23:08:283
246919986,1cyclictest11301-21snmpd20:44:023
246919986,1cyclictest11301-21snmpd19:28:513
246919981,4cyclictest11301-21snmpd22:25:043
246919980,4cyclictest1336-21cat00:35:143
246679987,1cyclictest8564-21ssh23:13:520
246679987,1cyclictest289622sleep023:41:430
246679987,1cyclictest17540-21diskmemload23:51:390
246679986,2cyclictest561-21nscd23:55:330
246679986,1cyclictest11301-21snmpd22:18:570
246679986,1cyclictest10119-21cat23:15:150
246679982,5cyclictest28517-21sed21:25:000
246679980,5cyclictest22979-21cat23:35:000
246679980,5cyclictest0-21swapper/020:00:140
246679980,4cyclictest0-21swapper/020:05:120
246679980,1cyclictest31930-21ssh21:29:380
246679980,1cyclictest21756-21ssh00:17:350
246679980,1cyclictest10408-21ssh00:01:150
31375270,0sleep10-21swapper/122:14:251
246919977,0cyclictest35-21ksoftirqd/323:15:193
246919977,0cyclictest35-21ksoftirqd/322:10:223
246919977,0cyclictest35-21ksoftirqd/322:00:013
246919976,1cyclictest35-21ksoftirqd/322:05:133
246919976,1cyclictest35-21ksoftirqd/321:05:143
246919976,1cyclictest35-21ksoftirqd/321:05:003
246919976,1cyclictest35-21ksoftirqd/320:45:143
246919976,1cyclictest11301-21snmpd00:24:013
246919975,1cyclictest9266-21cat00:00:173
246919975,1cyclictest35-21ksoftirqd/320:35:133
246919975,1cyclictest14792-21ssh00:08:263
246919975,1cyclictest11301-21snmpd22:45:073
246919975,1cyclictest11301-21snmpd22:42:283
246919975,1cyclictest11301-21snmpd00:33:253
246919975,1cyclictest11301-21snmpd00:26:493
246919973,1cyclictest240-21systemd-journal19:35:003
246919971,3cyclictest32617-21latency_hist19:25:003
246919971,1cyclictest0-21swapper/320:25:123
246919970,6cyclictest17540-21diskmemload21:52:233
246919970,2cyclictest0-21swapper/323:50:563
246919970,2cyclictest0-21swapper/323:46:273
246919970,2cyclictest0-21swapper/322:55:343
246919970,2cyclictest0-21swapper/321:46:293
246769971,6cyclictest0-21swapper/119:56:311
246769970,6cyclictest0-21swapper/119:41:221
246769970,6cyclictest0-21swapper/100:06:331
246769970,5cyclictest0-21swapper/100:20:371
246769970,4cyclictest0-21swapper/121:45:111
246769970,3cyclictest0-21swapper/123:20:161
246679976,1cyclictest3483-21ssh22:20:150
246679976,1cyclictest12251-21ssh22:31:550
246679976,1cyclictest11301-21snmpd19:36:580
246679975,1cyclictest11301-21snmpd19:45:370
246679975,1cyclictest11301-21snmpd00:26:040
246679972,2cyclictest17540-21diskmemload22:13:040
246679972,1cyclictest15312-21cut19:55:160
246679971,5cyclictest27029-21munin-node19:32:210
246679970,6cyclictest7633-21diskstats21:40:150
246679970,6cyclictest5369-21users21:35:230
246679970,6cyclictest32422-21aten2.4-expect21:30:120
246679970,6cyclictest25256-21cat20:15:230
246679970,6cyclictest24880-21taskset22:05:110
246679970,6cyclictest22420-21ssh21:15:180
246679970,6cyclictest21471-1kworker/u9:000:20:140
246679970,6cyclictest14472-21ssh21:50:100
246679970,6cyclictest13563-21diskstats21:00:140
246679970,6cyclictest12817-21perf21:00:000
246679970,6cyclictest11783-21ntp_states21:45:170
246679970,6cyclictest0-21swapper/022:50:130
246679970,6cyclictest0-21swapper/022:00:120
246679970,6cyclictest0-21swapper/019:20:210
246679970,1cyclictest317-21sshd20:32:080
246679970,1cyclictest2546-21cstates23:05:140
246679970,1cyclictest186112sleep023:27:200
246679970,1cyclictest17540-21diskmemload22:56:380
246679970,1cyclictest17540-21diskmemload00:37:100
246679970,1cyclictest1708-21ssh23:04:220
246679970,1cyclictest16448-21ssh22:39:030
246679970,1cyclictest0-21swapper/023:45:190
246679970,1cyclictest0-21swapper/023:37:560
246679970,1cyclictest0-21swapper/019:15:200
28752260,0sleep10-21swapper/122:55:171
246919965,1cyclictest8023-21ssh23:59:563
246919965,1cyclictest35-21ksoftirqd/323:40:203
246919965,1cyclictest35-21ksoftirqd/320:00:173
246919965,1cyclictest35-21ksoftirqd/319:55:003
246919965,1cyclictest20938-21sshd20:06:323
246919965,1cyclictest17825-21ssh00:11:163
246919965,1cyclictest16193-21ssh23:25:073
246919965,1cyclictest11301-21snmpd19:40:463
246919965,1cyclictest11301-21snmpd19:38:313
246919965,1cyclictest11301-21snmpd19:15:423
246919964,1cyclictest5829-21ssh21:36:503
246919964,1cyclictest35-21ksoftirqd/320:15:163
246919964,1cyclictest35-21ksoftirqd/320:10:223
246919964,1cyclictest35-21ksoftirqd/319:55:193
246919964,1cyclictest20479-21ntpq00:15:193
246919964,0cyclictest17540-21diskmemload22:20:063
246919960,6cyclictest20928-21ssh21:14:553
246919960,4cyclictest9986-21apt-get22:30:113
246919960,4cyclictest19735-21apt-get23:30:133
246919960,4cyclictest0-21swapper/321:55:223
246919960,1cyclictest31414-21diskstats20:30:153
246769962,2cyclictest0-21swapper/120:25:121
246769961,5cyclictest0-21swapper/123:03:491
246769961,3cyclictest0-21swapper/121:38:201
246769960,6cyclictest0-21swapper/123:53:281
246769960,6cyclictest0-21swapper/123:31:061
246769960,6cyclictest0-21swapper/121:16:461
246769960,6cyclictest0-21swapper/121:05:341
246769960,6cyclictest0-21swapper/120:41:381
246769960,6cyclictest0-21swapper/119:47:281
246769960,6cyclictest0-21swapper/119:20:151
246769960,6cyclictest0-21swapper/119:13:351
246769960,6cyclictest0-21swapper/100:36:131
246769960,5cyclictest0-21swapper/123:56:241
246769960,5cyclictest0-21swapper/122:39:061
246769960,5cyclictest0-21swapper/120:31:081
246769960,5cyclictest0-21swapper/119:51:491
246769960,5cyclictest0-21swapper/100:31:131
246769960,5cyclictest0-21swapper/100:16:391
246769960,4cyclictest0-21swapper/123:26:481
246769960,4cyclictest0-21swapper/122:29:401
246769960,3cyclictest0-21swapper/122:50:091
246769960,3cyclictest0-21swapper/121:50:531
246769960,3cyclictest0-21swapper/119:35:121
246769960,3cyclictest0-21swapper/100:25:131
246769960,2cyclictest0-21swapper/122:40:121
246769960,1cyclictest0-21swapper/120:35:471
246679965,1cyclictest31654-21ssh00:30:270
246679964,1cyclictest11301-21snmpd20:40:170
246679963,2cyclictest27006-21cron19:15:000
246679960,6cyclictest0-21swapper/022:25:140
246679960,5cyclictest10374-1kworker/u9:100:05:010
246679960,5cyclictest0-21swapper/021:10:120
246679960,5cyclictest0-21swapper/019:25:130
246679960,1cyclictest21918-21gzip22:45:190
246679960,1cyclictest21455-21/usr/sbin/munin20:10:170
246679960,1cyclictest17589-21ssh21:55:070
246679960,1cyclictest0-21swapper/020:35:150
246679960,0cyclictest0-21swapper/023:20:290
246679960,0cyclictest0-21swapper/021:05:110
246679960,0cyclictest0-21swapper/020:25:380
246679960,0cyclictest0-21swapper/020:24:290
246679960,0cyclictest0-21swapper/000:10:100
246919954,1cyclictest35-21ksoftirqd/320:50:003
246919954,1cyclictest35-21ksoftirqd/319:10:153
246919954,1cyclictest11301-21snmpd20:55:103
246919954,1cyclictest11301-21snmpd20:20:043
246769955,0cyclictest0-21swapper/123:10:111
246769955,0cyclictest0-21swapper/122:15:541
246769955,0cyclictest0-21swapper/121:21:311
246769952,1cyclictest11412-21chrt00:04:301
246769951,3cyclictest0-21swapper/122:00:171
246769951,2cyclictest0-21swapper/121:32:421
246769951,2cyclictest0-21swapper/120:00:141
246769950,5cyclictest0-21swapper/122:33:411
246769950,5cyclictest0-21swapper/121:42:341
246769950,5cyclictest0-21swapper/120:45:541
246769950,5cyclictest0-21swapper/120:05:201
246769950,4cyclictest0-21swapper/122:45:041
246769950,3cyclictest0-21swapper/123:45:491
246769950,3cyclictest0-21swapper/123:09:361
246769950,3cyclictest0-21swapper/121:25:041
246769950,3cyclictest0-21swapper/120:55:151
246769950,3cyclictest0-21swapper/100:10:301
246769950,2cyclictest0-21swapper/122:06:461
246769950,1cyclictest0-21swapper/123:16:191
246769950,1cyclictest0-21swapper/122:20:171
246769950,1cyclictest0-21swapper/120:55:001
246769950,0cyclictest0-21swapper/121:58:381
246679950,5cyclictest0-21swapper/019:40:130
246679950,4cyclictest5765-21/usr/sbin/munin20:45:150
246679950,0cyclictest0-21swapper/020:50:130
246769941,1cyclictest0-21swapper/120:10:361
246769940,4cyclictest0-21swapper/120:20:041
246769940,3cyclictest0-21swapper/119:30:201
246769940,2cyclictest0-21swapper/121:00:121
246769940,1cyclictest0-21swapper/119:30:001
246769931,1cyclictest0-21swapper/119:15:111
246769930,3cyclictest0-21swapper/120:15:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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