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2026-06-29 - 05:56
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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 Mon Jun 29, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
274692210131,63sleep00-21swapper/019:06:200
277412200161,25sleep20-21swapper/219:09:532
276162200162,25sleep10-21swapper/119:08:151
274622199159,26sleep30-21swapper/319:06:153
303042610,0sleep30-21swapper/300:19:183
27840991918,1cyclictest28-21ksoftirqd/220:35:192
27840991717,0cyclictest28-21ksoftirqd/223:32:132
27840991717,0cyclictest28-21ksoftirqd/221:34:492
27840991717,0cyclictest28-21ksoftirqd/200:35:172
27840991716,1cyclictest28-21ksoftirqd/222:25:222
27840991616,0cyclictest28-21ksoftirqd/222:43:502
27840991615,1cyclictest28-21ksoftirqd/223:51:392
27840991615,1cyclictest28-21ksoftirqd/200:06:112
27840991514,1cyclictest28-21ksoftirqd/222:34:592
27840991514,1cyclictest28-21ksoftirqd/222:23:332
27840991514,1cyclictest28-21ksoftirqd/221:41:362
27840991514,1cyclictest28-21ksoftirqd/220:20:152
2784099147,4cyclictest28-21ksoftirqd/220:30:142
27840991414,0cyclictest28-21ksoftirqd/223:19:292
27840991414,0cyclictest28-21ksoftirqd/223:06:572
27840991414,0cyclictest28-21ksoftirqd/221:21:512
27840991414,0cyclictest28-21ksoftirqd/221:19:212
27840991414,0cyclictest28-21ksoftirqd/219:30:122
27840991414,0cyclictest28-21ksoftirqd/219:30:112
27840991414,0cyclictest28-21ksoftirqd/200:28:302
27840991413,1cyclictest28-21ksoftirqd/223:00:472
27840991413,1cyclictest28-21ksoftirqd/222:00:512
27840991412,1cyclictest28-21ksoftirqd/223:40:012
2782499144,5cyclictest18622-21apt-get22:34:590
27840991313,0cyclictest28-21ksoftirqd/223:25:192
27840991313,0cyclictest28-21ksoftirqd/223:24:382
27840991313,0cyclictest28-21ksoftirqd/222:50:182
27840991313,0cyclictest28-21ksoftirqd/222:19:082
27840991313,0cyclictest28-21ksoftirqd/221:14:202
27840991313,0cyclictest28-21ksoftirqd/200:34:362
27840991313,0cyclictest28-21ksoftirqd/200:18:132
27840991312,1cyclictest28-21ksoftirqd/223:41:212
27840991312,1cyclictest28-21ksoftirqd/222:35:512
27840991312,1cyclictest28-21ksoftirqd/221:58:092
27840991312,1cyclictest28-21ksoftirqd/221:50:182
27840991312,1cyclictest28-21ksoftirqd/200:20:382
27840991311,1cyclictest28-21ksoftirqd/221:10:002
27840991212,0cyclictest28-21ksoftirqd/221:47:062
27840991211,1cyclictest28-21ksoftirqd/222:45:102
27840991211,1cyclictest28-21ksoftirqd/221:25:132
27840991211,1cyclictest28-21ksoftirqd/220:10:002
27840991211,1cyclictest28-21ksoftirqd/219:55:002
27840991211,1cyclictest28-21ksoftirqd/200:12:552
27840991210,2cyclictest28-21ksoftirqd/219:40:012
27840991210,1cyclictest28-21ksoftirqd/223:55:132
27840991210,1cyclictest28-21ksoftirqd/223:45:102
27840991210,1cyclictest28-21ksoftirqd/222:55:132
2784099119,1cyclictest28-21ksoftirqd/222:05:172
2784099119,1cyclictest28-21ksoftirqd/220:15:002
2784099119,1cyclictest28-21ksoftirqd/219:45:122
2784099119,1cyclictest28-21ksoftirqd/219:15:002
2784099115,5cyclictest28-21ksoftirqd/200:00:202
27840991111,0cyclictest28-21ksoftirqd/219:10:142
27840991110,1cyclictest28-21ksoftirqd/223:10:182
27840991110,1cyclictest28-21ksoftirqd/222:10:112
27840991110,1cyclictest28-21ksoftirqd/221:35:132
27840991110,1cyclictest28-21ksoftirqd/220:15:192
27840991110,1cyclictest28-21ksoftirqd/219:57:172
27840991110,1cyclictest28-21ksoftirqd/219:20:122
2782499116,4cyclictest9-21ksoftirqd/022:14:570
2782499112,4cyclictest20122-21perf19:59:590
2784099109,1cyclictest28-21ksoftirqd/220:25:152
2784099109,1cyclictest28-21ksoftirqd/219:40:132
2784099109,1cyclictest28-21ksoftirqd/219:25:152
2784099108,1cyclictest28-21ksoftirqd/221:00:122
2784099108,1cyclictest28-21ksoftirqd/220:50:162
2784099108,1cyclictest28-21ksoftirqd/220:45:132
2784099108,1cyclictest28-21ksoftirqd/220:40:002
2784099108,1cyclictest28-21ksoftirqd/220:00:122
2782499109,1cyclictest9-21ksoftirqd/023:02:340
2782499100,8cyclictest24552-21sshd22:40:250
278469998,1cyclictest35-21ksoftirqd/300:40:013
278469997,1cyclictest35-21ksoftirqd/322:50:143
278469992,6cyclictest0-21swapper/323:40:163
278409997,1cyclictest28-21ksoftirqd/220:55:132
278249992,3cyclictest0-21swapper/023:44:300
278249991,4cyclictest22051-21apt-get21:55:110
278249990,7cyclictest240-21systemd-journal00:34:400
278249990,7cyclictest0-21swapper/022:06:070
278249990,6cyclictest240-21systemd-journal23:35:100
278469982,3cyclictest20684-21diskmemload23:58:113
278469982,3cyclictest0-21swapper/323:46:343
278469981,4cyclictest0-21swapper/323:30:123
278469981,3cyclictest20684-21diskmemload00:34:213
278469980,5cyclictest20684-21diskmemload21:15:093
278469980,4cyclictest30365-21apt-get23:35:133
278469980,4cyclictest29969-21egrep20:20:133
278469980,2cyclictest3235-21runrttasks22:12:283
278339984,0cyclictest0-21swapper/123:30:201
278339980,4cyclictest0-21swapper/122:20:151
278249987,1cyclictest3763-21ssh22:57:330
278249981,6cyclictest6986-21ssh23:45:200
278249981,3cyclictest20684-21diskmemload21:12:320
278249980,7cyclictest28917-21ssh22:04:010
278249980,7cyclictest25115-21users00:10:220
278249980,7cyclictest19113-21apt-get22:35:130
278249980,7cyclictest13035-21apt-get19:45:110
278249980,1cyclictest5622-21ssh21:30:530
278249980,1cyclictest10457-21ssh21:38:490
10340280,0sleep30-21swapper/319:39:043
278469975,1cyclictest6355-21ssh22:15:593
278469975,1cyclictest35-21ksoftirqd/319:28:253
278469975,1cyclictest21760-21ssh00:06:103
278469975,1cyclictest18637-21ssh00:02:423
278469973,1cyclictest10858-21turbostat.cron21:40:013
278469972,3cyclictest20684-21diskmemload21:47:263
278469972,3cyclictest11000-21ssh22:23:553
278469972,2cyclictest1762-21ssh22:55:123
278469972,2cyclictest0-21swapper/322:00:163
278469972,1cyclictest19330-21/usr/sbin/munin22:35:143
278469971,2cyclictest0-21swapper/323:02:243
278469971,1cyclictest11647-21/usr/sbin/munin22:25:203
278469970,4cyclictest0-21swapper/323:15:273
278469970,4cyclictest0-21swapper/322:07:463
278469970,3cyclictest0-21swapper/322:31:313
278469970,3cyclictest0-21swapper/321:25:163
278469970,2cyclictest0-21swapper/323:07:123
278469970,2cyclictest0-21swapper/321:21:343
278339971,2cyclictest0-21swapper/100:15:171
278339970,4cyclictest0-21swapper/100:21:201
278339970,3cyclictest0-21swapper/121:45:501
278339970,1cyclictest0-21swapper/122:55:161
278249975,1cyclictest32722-21ssh00:20:370
278249973,1cyclictest23058-21/usr/sbin/munin23:25:140
278249971,4cyclictest1-21systemd22:50:130
278249971,2cyclictest20684-21diskmemload00:35:150
278249970,7cyclictest0-21swapper/019:22:520
278249970,6cyclictest27401-21ssh21:18:080
278249970,6cyclictest21476-21ntp_states20:00:170
278249970,6cyclictest19977-21sed21:50:190
278249970,6cyclictest17701-21ssh23:15:440
278249970,6cyclictest12294-21grep19:40:190
278249970,6cyclictest0-21swapper/023:10:120
278249970,1cyclictest9873-21sed19:35:220
278249970,1cyclictest6506-21ssh22:16:270
278249970,1cyclictest30049-21ssh00:18:330
278249970,1cyclictest26391-21ssh22:45:100
278249970,1cyclictest20684-21diskmemload21:25:410
278249970,1cyclictest14780-21ssh21:45:100
278249970,1cyclictest14478-21ssh23:55:550
278249970,1cyclictest13556-21ssh22:25:450
278249970,1cyclictest12331-21ssh21:40:190
278249970,1cyclictest0-21swapper/000:05:140
23730270,0sleep10-21swapper/123:25:141
23346270,1sleep30-21swapper/321:12:363
2012270,1sleep00-21swapper/000:25:060
278469965,1cyclictest828-21ntpq20:25:183
278469965,1cyclictest25303-21ssh23:26:423
278469965,1cyclictest20522-21ssh21:51:183
278469965,1cyclictest13389-21ssh23:10:183
278469965,1cyclictest12972-21ssh21:40:253
278469964,1cyclictest4948-21fschecks_count20:35:133
278469964,1cyclictest30186-21perf19:15:003
278469964,1cyclictest2924-21cat20:30:143
278469964,0cyclictest20684-21diskmemload21:31:413
278469964,0cyclictest20684-21diskmemload00:13:263
278469963,1cyclictest35-21ksoftirqd/319:55:353
278469963,1cyclictest10707-21ssh23:50:323
278469962,2cyclictest20684-21diskmemload00:25:543
278469962,2cyclictest0-21swapper/319:45:183
278469961,3cyclictest20684-21diskmemload23:20:083
278469961,3cyclictest0-21swapper/319:15:113
278469961,2cyclictest0-21swapper/322:47:123
278469961,1cyclictest240-21systemd-journal20:01:043
278469961,1cyclictest20684-21diskmemload22:41:533
278469961,1cyclictest20684-21diskmemload00:20:173
278469961,0cyclictest20684-21diskmemload21:56:093
278469960,1cyclictest0-21swapper/321:00:113
278339960,6cyclictest0-21swapper/122:28:591
278339960,6cyclictest0-21swapper/121:10:081
278339960,5cyclictest0-21swapper/123:18:241
278339960,4cyclictest0-21swapper/100:30:361
278339960,3cyclictest0-21swapper/122:49:531
278339960,3cyclictest0-21swapper/121:44:131
278339960,2cyclictest0-21swapper/123:40:181
278339960,2cyclictest0-21swapper/119:20:191
278339960,1cyclictest0-21swapper/121:35:161
278339960,0cyclictest0-21swapper/119:30:121
278339960,0cyclictest0-21swapper/119:30:121
278249965,1cyclictest9-21ksoftirqd/021:04:590
278249965,1cyclictest7074-1kworker/u9:223:50:060
278249965,1cyclictest6018-21/usr/sbin/munin19:30:120
278249965,1cyclictest6018-21/usr/sbin/munin19:30:120
278249965,1cyclictest25668-21tune2fs20:10:160
278249965,1cyclictest21900-21ssh23:22:230
278249962,1cyclictest28039-21/usr/sbin/munin19:10:150
278249962,0cyclictest0-21swapper/020:35:200
278249960,6cyclictest17998-21ssh00:00:440
278249960,5cyclictest9141-21sh23:05:130
278249960,3cyclictest0-21swapper/020:50:160
278249960,0cyclictest8080-21telnet22:20:110
278249960,0cyclictest0-21swapper/023:30:050
278249960,0cyclictest0-21swapper/021:20:130
278249960,0cyclictest0-21swapper/020:55:110
278249960,0cyclictest0-21swapper/020:44:110
278249960,0cyclictest0-21swapper/019:50:130
21638260,0sleep10-21swapper/121:54:401
278469955,0cyclictest0-21swapper/320:52:233
278469953,1cyclictest6768-21/usr/sbin/munin19:30:163
278469953,1cyclictest6768-21/usr/sbin/munin19:30:153
278469952,2cyclictest24076-21python20:05:193
278469952,1cyclictest240-21systemd-journal19:40:503
278469950,4cyclictest14235-21cat20:55:143
278469950,1cyclictest240-21systemd-journal20:42:213
278469950,1cyclictest240-21systemd-journal20:16:063
278469950,1cyclictest240-21systemd-journal20:13:213
278339955,0cyclictest0-21swapper/121:57:411
278339955,0cyclictest0-21swapper/121:05:591
278339955,0cyclictest0-21swapper/120:32:531
278339953,1cyclictest15231-21chrt23:14:121
278339953,1cyclictest0-21swapper/119:45:131
278339952,1cyclictest0-21swapper/120:25:201
278339951,4cyclictest0-21swapper/123:47:101
278339951,2cyclictest0-21swapper/123:20:111
278339951,2cyclictest0-21swapper/120:40:001
278339950,5cyclictest0-21swapper/120:13:331
278339950,5cyclictest0-21swapper/120:00:481
278339950,5cyclictest0-21swapper/119:52:061
278339950,3cyclictest0-21swapper/123:50:311
278339950,3cyclictest0-21swapper/122:13:111
278339950,3cyclictest0-21swapper/121:25:151
278339950,3cyclictest0-21swapper/100:05:201
278339950,3cyclictest0-21swapper/100:01:441
278339950,2cyclictest0-21swapper/123:03:231
278339950,2cyclictest0-21swapper/122:35:341
278339950,2cyclictest0-21swapper/122:31:221
278339950,2cyclictest0-21swapper/122:17:451
278339950,2cyclictest0-21swapper/122:08:131
278339950,2cyclictest0-21swapper/119:35:151
278339950,1cyclictest0-21swapper/123:35:331
278339950,1cyclictest0-21swapper/123:06:101
278339950,1cyclictest0-21swapper/122:51:521
278339950,1cyclictest0-21swapper/121:35:011
278339950,1cyclictest0-21swapper/121:00:111
278339950,1cyclictest0-21swapper/120:45:171
278339950,1cyclictest0-21swapper/120:40:111
278339950,1cyclictest0-21swapper/100:25:121
278339950,1cyclictest0-21swapper/100:10:181
278339950,0cyclictest0-21swapper/123:58:271
278339950,0cyclictest0-21swapper/122:41:561
278339950,0cyclictest0-21swapper/100:35:131
278249955,0cyclictest0-21swapper/019:15:180
278249953,1cyclictest9128-21/usr/sbin/munin20:45:180
278249953,1cyclictest3594-21/usr/sbin/munin19:25:140
278249953,1cyclictest0-21swapper/020:20:150
278249950,5cyclictest0-21swapper/020:32:230
278249950,5cyclictest0-21swapper/020:19:100
278249950,5cyclictest0-21swapper/020:05:140
278249950,2cyclictest240-21systemd-journal21:10:000
278469942,1cyclictest18678-21aten_r1power_po21:05:133
278469941,1cyclictest15389-21apt-get19:50:123
278469941,1cyclictest1397-21cstates19:20:143
278469940,1cyclictest240-21systemd-journal20:45:053
278339942,1cyclictest0-21swapper/121:20:161
278339942,0cyclictest0-21swapper/120:20:141
278339940,3cyclictest0-21swapper/119:10:201
278339940,2cyclictest0-21swapper/122:00:121
278339940,2cyclictest0-21swapper/120:15:151
278339940,1cyclictest0-21swapper/121:15:131
278339940,1cyclictest0-21swapper/120:50:111
278339940,1cyclictest0-21swapper/120:09:541
278339940,1cyclictest0-21swapper/119:25:181
278339940,1cyclictest0-21swapper/119:15:201
278339940,0cyclictest0-21swapper/120:55:211
278249940,0cyclictest0-21swapper/020:25:110
278339930,2cyclictest0-21swapper/119:55:121
278339930,1cyclictest0-21swapper/119:40:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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