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2026-03-22 - 17:41
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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 Mar 22, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
297742232158,24sleep00-21swapper/007:07:200
297722201161,26sleep30-21swapper/307:07:193
297462200160,25sleep20-21swapper/207:06:582
299062196157,26sleep10-21swapper/107:09:021
211812680,0sleep00-21swapper/011:52:250
248382590,0sleep30-21swapper/309:51:553
286712180,0sleep20-21swapper/212:01:432
188802170,1sleep218875-21cpuspeed_turbos11:50:132
30099991413,1cyclictest28-21ksoftirqd/209:15:422
275402140,0sleep10-21swapper/111:19:531
203122140,0sleep00-21swapper/009:04:020
203122140,0sleep00-21swapper/009:04:020
30075991311,1cyclictest9-21ksoftirqd/008:40:000
3011199128,4cyclictest35-21ksoftirqd/308:35:003
30099991211,0cyclictest28-21ksoftirqd/209:25:362
3009999120,11cyclictest0-21swapper/208:00:192
3007599129,2cyclictest9-21ksoftirqd/008:10:000
30075991211,1cyclictest9-21ksoftirqd/009:40:000
3009999119,1cyclictest28-21ksoftirqd/210:55:132
30099991110,1cyclictest28-21ksoftirqd/212:05:112
30099991110,1cyclictest28-21ksoftirqd/211:45:002
30099991110,1cyclictest28-21ksoftirqd/211:45:002
30099991110,1cyclictest28-21ksoftirqd/210:10:112
3009999110,1cyclictest0-21swapper/210:00:202
3007599119,1cyclictest9-21ksoftirqd/010:55:120
3007599118,1cyclictest9-21ksoftirqd/008:00:000
3007599113,4cyclictest29973-21sed12:05:000
30075991110,1cyclictest9-21ksoftirqd/011:15:110
3009999109,1cyclictest28-21ksoftirqd/212:00:002
3009999109,0cyclictest0-21swapper/211:18:032
3009999108,1cyclictest28-21ksoftirqd/210:25:002
3007599109,1cyclictest9-21ksoftirqd/011:25:010
19832100,0sleep00-21swapper/007:15:180
301119990,6cyclictest0-21swapper/309:22:313
300999999,0cyclictest28-21ksoftirqd/212:17:072
300999999,0cyclictest28-21ksoftirqd/210:20:182
300999998,1cyclictest28-21ksoftirqd/212:20:112
300999998,1cyclictest28-21ksoftirqd/210:37:082
300999998,1cyclictest28-21ksoftirqd/209:35:132
300999994,4cyclictest13394-21kworker/2:111:10:162
300759998,1cyclictest9-21ksoftirqd/011:45:000
300759998,1cyclictest9-21ksoftirqd/011:45:000
300759995,2cyclictest294-21systemd-udevd11:09:080
301119986,1cyclictest707-21snmpd12:15:143
301119986,1cyclictest707-21snmpd09:17:153
301119986,1cyclictest707-21snmpd09:08:213
301119986,1cyclictest707-21snmpd08:00:043
301119985,0cyclictest22765-21diskmemload12:11:043
301119984,3cyclictest22765-21diskmemload11:43:293
301119984,3cyclictest22765-21diskmemload11:43:283
300999988,0cyclictest28-21ksoftirqd/209:50:192
300999988,0cyclictest28-21ksoftirqd/207:55:132
300999987,1cyclictest28-21ksoftirqd/211:28:342
300999987,1cyclictest28-21ksoftirqd/210:52:142
300999987,1cyclictest28-21ksoftirqd/210:40:202
300999987,1cyclictest28-21ksoftirqd/210:30:162
300999987,1cyclictest28-21ksoftirqd/210:05:202
300999987,1cyclictest28-21ksoftirqd/209:45:162
300999987,0cyclictest28-21ksoftirqd/207:20:102
300999986,1cyclictest707-21snmpd11:35:222
300999986,1cyclictest707-21snmpd08:36:262
300999986,1cyclictest61650irq/122-eno111:30:142
300999986,1cyclictest61650irq/122-eno109:10:172
300999986,1cyclictest28-21ksoftirqd/212:30:202
300999986,1cyclictest28-21ksoftirqd/210:45:532
300999986,1cyclictest28-21ksoftirqd/208:20:142
300999986,1cyclictest28-21ksoftirqd/207:40:162
300999986,1cyclictest13289-21perf08:50:002
300999980,8cyclictest0-21swapper/210:16:002
300999980,7cyclictest17386-21runrttasks11:47:312
300759988,0cyclictest9-21ksoftirqd/007:50:150
300759987,1cyclictest9-21ksoftirqd/011:05:020
300759987,1cyclictest9-21ksoftirqd/010:42:150
300759987,0cyclictest9-21ksoftirqd/010:40:000
300759986,1cyclictest707-21snmpd07:45:430
300759984,2cyclictest548-21systemd-logind11:57:080
300759980,7cyclictest13240-21ssh12:25:110
300759980,6cyclictest31772-21apt-get11:25:130
301119976,1cyclictest707-21snmpd12:28:093
301119976,1cyclictest707-21snmpd09:31:223
301119975,1cyclictest9458-21apt-get10:15:013
301119975,1cyclictest707-21snmpd11:06:193
301119975,1cyclictest707-21snmpd08:52:073
301119975,1cyclictest707-21snmpd07:50:013
301119975,1cyclictest28476-21ssh09:56:233
301119975,1cyclictest16550-21ssh10:23:253
301119975,1cyclictest12216-21perf11:00:003
301119974,3cyclictest22765-21diskmemload10:44:523
301119974,1cyclictest240-21systemd-journal11:15:003
301119974,1cyclictest1719-21load10:45:193
301119973,3cyclictest20995-21sh09:46:583
301119970,6cyclictest17897-21ssh11:48:543
301119970,6cyclictest0-21swapper/311:55:103
301119970,3cyclictest0-21swapper/312:05:113
301119970,3cyclictest0-21swapper/310:10:583
300999977,0cyclictest28-21ksoftirqd/211:00:122
300999976,1cyclictest61650irq/122-eno111:20:202
300999976,1cyclictest61650irq/122-eno111:05:142
300999976,1cyclictest61650irq/122-eno109:30:092
300999976,1cyclictest28-21ksoftirqd/209:55:092
300999976,1cyclictest28-21ksoftirqd/209:42:522
300999976,1cyclictest28-21ksoftirqd/208:15:142
300999976,1cyclictest28-21ksoftirqd/207:45:152
300999976,1cyclictest28-21ksoftirqd/207:15:152
300999975,1cyclictest707-21snmpd08:51:092
300999975,1cyclictest707-21snmpd07:13:422
300999975,1cyclictest31052-21ssh09:20:102
300999975,1cyclictest28-21ksoftirqd/212:10:192
300999975,1cyclictest28-21ksoftirqd/209:05:192
300999975,1cyclictest28-21ksoftirqd/207:40:002
300999970,3cyclictest0-21swapper/212:26:382
300999970,1cyclictest0-21swapper/208:43:412
300919971,6cyclictest0-21swapper/107:17:511
300919970,7cyclictest0-21swapper/108:40:181
300919970,6cyclictest0-21swapper/110:15:171
300919970,5cyclictest0-21swapper/110:24:411
300919970,3cyclictest0-21swapper/107:40:121
300919970,1cyclictest0-21swapper/111:21:551
300919970,1cyclictest0-21swapper/108:13:071
300759977,0cyclictest9-21ksoftirqd/009:25:160
300759976,1cyclictest9-21ksoftirqd/010:25:120
300759976,1cyclictest9-21ksoftirqd/010:15:000
300759976,1cyclictest707-21snmpd09:52:040
300759976,1cyclictest4109-1kworker/u9:110:09:360
300759976,1cyclictest0-21swapper/011:30:150
300759975,1cyclictest9-21ksoftirqd/007:40:000
300759974,2cyclictest31044-21/usr/sbin/munin09:20:110
300759974,1cyclictest548-21systemd-logind09:09:080
300759973,2cyclictest0-21swapper/009:10:110
300759973,1cyclictest294-21systemd-udevd07:27:090
300759971,6cyclictest7019-21ssh10:10:210
300759971,6cyclictest32079-21ssh10:00:370
300759971,6cyclictest28789-21ssh09:15:380
300759971,6cyclictest14863-21ssh09:40:120
300759971,5cyclictest1-21systemd07:15:000
300759971,3cyclictest6811-21apt-get09:30:110
300759971,1cyclictest13598-21ssh10:20:110
300759970,6cyclictest7878-21ssh12:16:480
300759970,6cyclictest22765-21diskmemload12:05:010
300759970,6cyclictest16855-1kworker/u9:109:45:110
300759970,6cyclictest1658-21ssh12:10:130
300759970,6cyclictest12815-1kworker/u9:111:45:070
300759970,6cyclictest0-21swapper/012:30:120
300759970,4cyclictest561-21nscd12:24:390
300759970,2cyclictest2007-21ps10:45:220
300759970,2cyclictest0-21swapper/008:25:110
300759970,1cyclictest7581-21diskstats11:35:130
300759970,1cyclictest6874-21ssh10:51:480
300759970,1cyclictest21550-21fschecks_count12:35:150
300759970,1cyclictest21550-21fschecks_count12:35:150
300759970,1cyclictest0-21swapper/010:34:430
6436260,0sleep10-21swapper/110:10:161
301119965,1cyclictest8214-21ssh11:35:173
301119965,1cyclictest707-21snmpd08:41:413
301119965,1cyclictest7025-21ssh10:52:113
301119965,1cyclictest677-21ssh10:03:193
301119965,1cyclictest3187-21ssh11:30:113
301119965,1cyclictest30492-21ssh11:22:273
301119965,1cyclictest27601-21ssh10:36:343
301119965,1cyclictest26340-21ssh09:14:253
301119965,1cyclictest24676-21ssh10:33:583
301119965,1cyclictest21476-21ssh12:35:163
301119965,1cyclictest21476-21ssh12:35:153
301119965,1cyclictest20358-21ssh12:34:153
301119965,1cyclictest20215-21ssh10:27:233
301119965,1cyclictest15199-21ssh11:02:443
301119965,1cyclictest12051-21ntpq09:35:173
301119965,1cyclictest11461-21ntpq07:35:153
301119964,1cyclictest707-21snmpd08:12:263
301119964,1cyclictest707-21snmpd07:55:013
301119964,1cyclictest707-21snmpd07:19:363
301119964,1cyclictest707-21snmpd07:12:013
301119964,1cyclictest35-21ksoftirqd/307:25:003
301119964,1cyclictest21727-21ssh11:53:503
301119963,1cyclictest240-21systemd-journal12:05:003
301119962,2cyclictest2670-21apt-get09:25:093
301119961,5cyclictest32440-21munin-node07:49:203
301119960,3cyclictest0-21swapper/309:40:113
301119960,1cyclictest0-21swapper/310:05:113
300999966,0cyclictest9376-21sensors07:30:182
300999966,0cyclictest61650irq/122-eno108:55:122
300999966,0cyclictest61650irq/122-eno107:28:152
300999965,1cyclictest61650irq/122-eno112:35:022
300999965,1cyclictest61650irq/122-eno112:35:022
300999965,1cyclictest28-21ksoftirqd/209:00:152
300999965,1cyclictest28-21ksoftirqd/209:00:152
300999964,1cyclictest28-21ksoftirqd/208:30:122
300999960,6cyclictest0-21swapper/208:25:442
300999960,1cyclictest0-21swapper/207:50:402
300919964,1cyclictest0-21swapper/111:06:531
300919961,1cyclictest0-21swapper/112:15:441
300919960,6cyclictest0-21swapper/111:59:051
300919960,6cyclictest0-21swapper/111:49:341
300919960,6cyclictest0-21swapper/111:44:241
300919960,6cyclictest0-21swapper/111:44:241
300919960,6cyclictest0-21swapper/109:57:021
300919960,6cyclictest0-21swapper/109:32:501
300919960,5cyclictest0-21swapper/111:10:021
300919960,5cyclictest0-21swapper/109:08:301
300919960,5cyclictest0-21swapper/108:48:301
300919960,3cyclictest0-21swapper/111:32:161
300919960,3cyclictest0-21swapper/109:26:291
300919960,2cyclictest0-21swapper/112:35:161
300919960,2cyclictest0-21swapper/112:35:161
300919960,2cyclictest0-21swapper/110:05:151
300919960,2cyclictest0-21swapper/108:50:121
300919960,1cyclictest0-21swapper/112:24:401
300919960,1cyclictest0-21swapper/109:39:371
300919960,1cyclictest0-21swapper/107:26:391
300759966,0cyclictest9-21ksoftirqd/008:55:140
300759965,1cyclictest9-21ksoftirqd/008:40:140
300759965,1cyclictest9-21ksoftirqd/008:25:000
300759965,1cyclictest20727-21ssh11:10:140
300759962,2cyclictest548-21systemd-logind09:55:170
300759960,6cyclictest0-21swapper/008:15:180
300759960,5cyclictest733-21sshd07:23:470
300759960,1cyclictest9698-21grep07:30:200
300759960,0cyclictest13576-21telnet08:50:130
300759960,0cyclictest0-21swapper/008:30:180
300759960,0cyclictest0-21swapper/008:12:410
15571260,2sleep10-21swapper/112:26:461
301119955,0cyclictest0-21swapper/307:30:113
301119954,1cyclictest707-21snmpd08:18:413
301119954,1cyclictest6786-21ntpq07:25:193
301119954,1cyclictest35-21ksoftirqd/308:22:443
301119953,1cyclictest9929-21sh12:20:133
301119953,1cyclictest2626-21irqstats08:25:153
301119953,1cyclictest18984-21head09:00:143
301119953,1cyclictest18984-21head09:00:143
301119953,1cyclictest11410-21cut08:45:143
301119952,1cyclictest240-21systemd-journal08:05:003
301119951,3cyclictest31772-21apt-get11:25:133
301119950,4cyclictest0-21swapper/311:15:113
300999952,2cyclictest27290-21tr08:10:122
300999950,3cyclictest0-21swapper/208:05:122
300919955,0cyclictest0-21swapper/112:30:561
300919955,0cyclictest0-21swapper/112:05:251
300919955,0cyclictest0-21swapper/110:27:061
300919955,0cyclictest0-21swapper/109:02:101
300919955,0cyclictest0-21swapper/109:02:101
300919955,0cyclictest0-21swapper/108:20:171
300919955,0cyclictest0-21swapper/107:12:071
300919953,1cyclictest0-21swapper/110:33:501
300919951,4cyclictest0-21swapper/108:00:301
300919950,5cyclictest0-21swapper/111:51:231
300919950,5cyclictest0-21swapper/110:56:441
300919950,5cyclictest0-21swapper/110:45:191
300919950,5cyclictest0-21swapper/109:52:101
300919950,5cyclictest0-21swapper/109:41:151
300919950,5cyclictest0-21swapper/109:11:061
300919950,4cyclictest0-21swapper/107:30:121
300919950,2cyclictest0-21swapper/110:41:131
300919950,2cyclictest0-21swapper/109:45:131
300919950,2cyclictest0-21swapper/109:20:051
300919950,2cyclictest0-21swapper/109:15:261
300919950,2cyclictest0-21swapper/108:25:131
300919950,0cyclictest0-21swapper/112:04:231
300919950,0cyclictest0-21swapper/108:15:151
300759950,5cyclictest0-21swapper/008:45:140
300759950,5cyclictest0-21swapper/008:00:120
300759950,0cyclictest0-21swapper/007:40:060
301119944,0cyclictest13650irq/124-ahci[0008:55:063
301119942,1cyclictest6975-21tune2fs08:35:163
301119940,2cyclictest0-21swapper/307:40:123
300919944,0cyclictest0-21swapper/111:26:531
300919944,0cyclictest0-21swapper/107:50:311
300919943,1cyclictest6077-21chrt08:33:441
300919943,1cyclictest12154-21chrt07:36:211
300919942,1cyclictest0-21swapper/111:35:121
300919941,2cyclictest0-21swapper/112:10:121
300919940,4cyclictest0-21swapper/108:05:201
300919940,4cyclictest0-21swapper/107:20:331
300919940,2cyclictest0-21swapper/111:00:191
300919940,2cyclictest0-21swapper/110:50:131
300919940,2cyclictest0-21swapper/110:35:181
300919940,1cyclictest0-21swapper/110:00:121
300919940,1cyclictest0-21swapper/107:45:151
300919940,0cyclictest0-21swapper/108:55:191
300919940,0cyclictest0-21swapper/108:35:211
300919931,1cyclictest0-21swapper/107:55:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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