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2026-03-26 - 09:48
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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 Mar 26, 2026 00:45:20)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
315752201162,26sleep20-21swapper/219:06:172
316822200162,25sleep00-21swapper/019:07:390
316932199159,27sleep10-21swapper/119:07:491
315562199159,27sleep30-21swapper/319:06:023
3195299160,1cyclictest0-21swapper/222:39:592
133622160,0sleep10-21swapper/122:15:201
3195299150,1cyclictest8125-21sed22:50:202
3195299150,1cyclictest5752-21users22:05:202
3195299140,1cyclictest9150-21cstates23:35:132
3195299140,1cyclictest17939-21hddtemp_smartct21:40:142
3195299140,1cyclictest13235-21expr23:40:132
3195299140,1cyclictest0-21swapper/219:45:132
3195299140,1cyclictest0-21swapper/219:15:232
3195299130,1cyclictest6177-21cat21:25:162
3195299130,1cyclictest28770-21fschecks_count00:00:132
3195299130,1cyclictest28770-21fschecks_count00:00:122
3195299120,2cyclictest0-21swapper/221:55:402
3195299120,1cyclictest32267-21rm21:18:022
3195299120,1cyclictest30244-21fschecks_count23:20:132
3195299120,0cyclictest0-21swapper/200:39:132
3194799120,0cyclictest0-21swapper/122:35:201
31939991210,1cyclictest9-21ksoftirqd/020:00:000
3193999121,5cyclictest3594-21grep20:25:010
3195899110,7cyclictest0-21swapper/319:25:113
3195299116,4cyclictest2115-21cat21:20:152
3195299110,4cyclictest19268-21ntp_kernel_err20:55:182
3195299110,3cyclictest0-21swapper/222:47:202
3195299110,2cyclictest24053-21fschecks_time22:30:132
3195299110,10cyclictest0-21swapper/222:15:462
3195299110,1cyclictest32238-21aten_r1power_fr19:10:122
3195299110,1cyclictest0-21swapper/221:50:092
3195299110,1cyclictest0-21swapper/221:39:592
3195299110,1cyclictest0-21swapper/200:32:532
3195299110,0cyclictest0-21swapper/223:30:182
3194799117,4cyclictest21-21ksoftirqd/121:50:341
3194799110,11cyclictest0-21swapper/122:57:421
3193999112,4cyclictest21517-21latency_hist23:10:000
3195299109,1cyclictest28-21ksoftirqd/222:25:242
3195299105,4cyclictest19058-21ssh23:46:542
3195299103,6cyclictest9843-21ntp_kernel_pll_20:35:162
3195299102,7cyclictest0-21swapper/222:11:522
3195299100,2cyclictest26083-21grep23:55:202
3195299100,2cyclictest0-21swapper/221:46:252
3195299100,1cyclictest7686-21expr00:15:142
3195299100,1cyclictest31632-21df22:40:172
3195299100,1cyclictest24769-21taskset21:06:472
3195299100,1cyclictest2268-21ntp_states23:25:172
3195299100,1cyclictest14608-21diskstats23:00:132
3195299100,1cyclictest11521-21cstates00:20:132
3195299100,1cyclictest0-21swapper/220:40:032
3195299100,1cyclictest0-21swapper/220:15:222
3195299100,1cyclictest0-21swapper/219:30:172
3195299100,1cyclictest0-21swapper/219:25:152
3195299100,0cyclictest0-21swapper/223:07:292
3195299100,0cyclictest0-21swapper/222:02:372
3195299100,0cyclictest0-21swapper/200:10:022
3193999100,5cyclictest14754-21latency_hist00:25:000
319529996,1cyclictest28-21ksoftirqd/219:55:002
319529993,5cyclictest9761-21ssh21:30:122
319529993,5cyclictest25990-21tune2fs21:10:132
319529991,2cyclictest29127-21apt-get20:10:112
319529991,1cyclictest26755-21ntp_states23:15:162
319529990,2cyclictest934-21/usr/sbin/munin00:05:182
319529990,1cyclictest25579-21ntp_states20:00:182
319529990,1cyclictest240-21systemd-journal20:49:592
319529990,1cyclictest22304-21grep19:55:142
319529990,1cyclictest17673-21chrt22:20:492
319529990,1cyclictest0-21swapper/223:51:082
319529990,1cyclictest0-21swapper/223:10:142
319529990,1cyclictest0-21swapper/222:58:172
319529990,1cyclictest0-21swapper/220:30:132
319529990,1cyclictest0-21swapper/200:25:162
319529990,0cyclictest0-21swapper/221:00:112
319479995,4cyclictest56-21kworker/1:123:53:421
319479995,4cyclictest0-21swapper/120:54:351
17486290,0sleep00-21swapper/022:20:200
319589986,1cyclictest707-21snmpd22:29:153
319589986,1cyclictest707-21snmpd20:38:593
319589986,1cyclictest707-21snmpd20:07:263
319589986,1cyclictest707-21snmpd19:13:483
319589985,2cyclictest31250-21dump-pmu-power20:15:013
319589985,1cyclictest13650irq/124-ahci[0020:59:553
319589980,6cyclictest22048-21apt-get19:55:123
319589980,5cyclictest0-21swapper/300:31:083
319589980,4cyclictest8781-21apt-get23:35:113
319529986,1cyclictest707-21snmpd20:20:182
319529986,1cyclictest28-21ksoftirqd/219:36:432
319529980,1cyclictest548-21systemd-logind19:20:202
319479988,0cyclictest21-21ksoftirqd/122:50:401
319479988,0cyclictest21-21ksoftirqd/121:42:311
319479988,0cyclictest21-21ksoftirqd/100:09:261
319479987,0cyclictest21-21ksoftirqd/122:25:191
319479984,4cyclictest21-21ksoftirqd/100:27:191
319399987,1cyclictest9-21ksoftirqd/022:55:010
319399987,1cyclictest9-21ksoftirqd/020:38:540
319399986,1cyclictest707-21snmpd22:32:280
319399986,1cyclictest707-21snmpd22:16:350
319399986,1cyclictest707-21snmpd20:59:030
319399984,2cyclictest240-21systemd-journal19:34:590
319399982,6cyclictest12893-21ssh22:57:420
319399982,5cyclictest30854-21perf22:39:590
319399980,7cyclictest1202-21munin-run20:20:000
319399980,7cyclictest0-21swapper/021:10:560
319399980,4cyclictest14813-21perf19:39:590
319399980,3cyclictest0-21swapper/000:30:120
319399980,1cyclictest7211-21ssh22:09:140
319399980,1cyclictest28711-21diskstats00:00:120
319399980,1cyclictest28711-21diskstats00:00:120
27742280,1sleep30-21swapper/323:59:413
17190280,0sleep30-21swapper/320:50:203
319589976,1cyclictest707-21snmpd22:59:083
319589976,1cyclictest707-21snmpd22:36:133
319589976,1cyclictest707-21snmpd20:00:163
319589976,1cyclictest21683-21ssh23:10:023
319589975,1cyclictest8479-21ssh21:28:453
319589975,1cyclictest707-21snmpd22:51:573
319589975,1cyclictest707-21snmpd21:04:033
319589975,1cyclictest707-21snmpd20:18:103
319589975,1cyclictest707-21snmpd00:25:133
319589975,1cyclictest35-21ksoftirqd/319:44:593
319589975,1cyclictest30233-21ssh00:01:003
319589975,1cyclictest30233-21ssh00:00:593
319589975,0cyclictest25039-21diskmemload22:43:313
319589974,2cyclictest4888-21cron19:20:003
319589973,1cyclictest1291-21aten2.4-expect21:20:103
319589972,2cyclictest25039-21diskmemload21:10:113
319589970,6cyclictest3098-21ssh23:25:563
319589970,6cyclictest25039-21diskmemload23:18:383
319589970,6cyclictest22533-21ssh23:50:573
319589970,5cyclictest0-21swapper/323:05:113
319589970,4cyclictest12506-21processes00:20:193
319589970,3cyclictest25039-21diskmemload00:37:483
319529973,3cyclictest61650irq/122-eno119:40:112
319529971,5cyclictest0-21swapper/220:25:142
319529970,2cyclictest27530-21tr20:05:142
319529970,1cyclictest16384-21fschecks_count20:50:132
319479977,0cyclictest21-21ksoftirqd/119:40:191
319479977,0cyclictest0-21swapper/121:20:151
319479974,3cyclictest0-21swapper/122:24:071
319479971,6cyclictest0-21swapper/122:48:541
319479971,2cyclictest0-21swapper/100:34:231
319479970,7cyclictest0-21swapper/119:45:181
319479970,6cyclictest0-21swapper/121:30:141
319479970,4cyclictest0-21swapper/123:58:581
319479970,4cyclictest0-21swapper/120:05:171
319479970,3cyclictest0-21swapper/121:15:131
319479970,1cyclictest0-21swapper/123:13:161
319399975,1cyclictest707-21snmpd19:18:010
319399973,2cyclictest240-21systemd-journal19:15:000
319399971,6cyclictest19122-21ssh23:47:020
319399971,6cyclictest0-21swapper/021:29:230
319399971,4cyclictest4935-21apt-get23:30:120
319399971,3cyclictest25039-21diskmemload23:38:250
319399970,6cyclictest8015-21ssh22:10:120
319399970,6cyclictest29530-21/usr/sbin/munin21:55:150
319399970,6cyclictest29158-21apt-get23:20:010
319399970,6cyclictest28380-21ls21:55:000
319399970,6cyclictest25039-21diskmemload22:40:060
319399970,6cyclictest21744-21ssh22:26:300
319399970,6cyclictest14219-21aten_r1power_vo23:00:120
319399970,6cyclictest10003-21gltestperf21:30:140
319399970,6cyclictest0-21swapper/019:25:010
319399970,6cyclictest0-21swapper/000:25:350
319399970,1cyclictest8102sleep000:05:180
319399970,1cyclictest29452-21taskset21:15:120
319399970,1cyclictest27807-21ssh23:16:320
319399970,1cyclictest26440-21ssh23:56:090
319399970,1cyclictest255902chrt00:38:170
319399970,1cyclictest25039-21diskmemload21:40:100
319399970,1cyclictest25039-21diskmemload00:10:210
319399970,1cyclictest2297-21ssh22:01:190
319399970,1cyclictest15301-21ssh23:42:070
319399970,1cyclictest10024-21ssh00:17:470
319399970,1cyclictest0-21swapper/023:51:240
319589965,1cyclictest9641-21ssh00:16:453
319589965,1cyclictest6844-21ssh23:30:383
319589965,1cyclictest4915-21ssh22:46:533
319589965,1cyclictest35-21ksoftirqd/319:31:543
319589965,1cyclictest30998-21ssh21:56:453
319589965,1cyclictest3057-21sshd22:03:203
319589965,1cyclictest28024-21ssh21:54:073
319589965,1cyclictest25352-21ssh22:30:513
319589965,1cyclictest20952-21ssh21:45:073
319589965,1cyclictest17995-21ssh22:21:413
319589965,1cyclictest17058-21ssh21:40:013
319589965,1cyclictest16740-21ssh23:02:403
319589965,1cyclictest10132-21ssh22:11:143
319589964,1cyclictest707-21snmpd20:41:143
319589964,1cyclictest707-21snmpd19:46:353
319589964,1cyclictest4599-21fschecks_time22:05:133
319589963,1cyclictest25039-21diskmemload21:35:163
319589962,2cyclictest25039-21diskmemload21:32:383
319589961,3cyclictest0-21swapper/321:15:113
319589960,4cyclictest0-21swapper/323:20:423
319589960,3cyclictest12342-21apt-get23:40:013
319589960,0cyclictest0-21swapper/300:05:363
319479962,4cyclictest0-21swapper/119:24:591
319479962,3cyclictest0-21swapper/122:04:361
319479962,1cyclictest0-21swapper/100:03:121
319479962,1cyclictest0-21swapper/100:03:111
319479961,5cyclictest56-21kworker/1:121:47:331
319479960,6cyclictest0-21swapper/123:24:271
319479960,6cyclictest0-21swapper/122:10:151
319479960,6cyclictest0-21swapper/120:18:281
319479960,6cyclictest0-21swapper/119:57:461
319479960,6cyclictest0-21swapper/119:26:451
319479960,6cyclictest0-21swapper/100:37:591
319479960,6cyclictest0-21swapper/100:15:091
319479960,5cyclictest0-21swapper/119:10:141
319479960,4cyclictest0-21swapper/121:10:131
319479960,3cyclictest0-21swapper/123:07:031
319479960,1cyclictest0-21swapper/122:33:391
319479960,1cyclictest0-21swapper/121:35:501
319479960,1cyclictest0-21swapper/119:16:271
319479960,1cyclictest0-21swapper/100:22:511
319399964,1cyclictest9-21ksoftirqd/020:26:460
319399964,1cyclictest2274-21ntp_states23:25:170
319399961,4cyclictest2489-21ssh22:45:050
319399960,6cyclictest0-21swapper/021:35:370
319399960,6cyclictest0-21swapper/020:07:110
319399960,6cyclictest0-21swapper/019:48:300
319399960,5cyclictest0-21swapper/020:50:140
319399960,5cyclictest0-21swapper/019:25:110
319399960,2cyclictest25039-21diskmemload21:45:200
319399960,1cyclictest22696-21ssh23:10:160
319399960,0cyclictest0-21swapper/021:22:350
319399960,0cyclictest0-21swapper/021:05:090
319399960,0cyclictest0-21swapper/019:50:100
319399960,0cyclictest0-21swapper/019:44:010
319589955,0cyclictest0-21swapper/319:50:143
319589954,1cyclictest18521-21ssh23:45:263
319589954,1cyclictest13663-21ssh22:15:273
319589953,1cyclictest559-21cron19:34:593
319589953,1cyclictest13436-21apt-get20:45:103
319589950,3cyclictest0-21swapper/300:10:213
319479955,0cyclictest21-21ksoftirqd/123:00:151
319479955,0cyclictest21-21ksoftirqd/119:30:171
319479954,1cyclictest0-21swapper/120:13:191
319479951,4cyclictest56-21kworker/1:120:20:581
319479951,2cyclictest0-21swapper/120:35:001
319479951,2cyclictest0-21swapper/100:10:191
319479950,5cyclictest0-21swapper/123:45:151
319479950,5cyclictest0-21swapper/123:25:101
319479950,5cyclictest0-21swapper/120:29:111
319479950,5cyclictest0-21swapper/120:03:311
319479950,5cyclictest0-21swapper/119:50:141
319479950,3cyclictest0-21swapper/123:35:571
319479950,3cyclictest0-21swapper/123:30:171
319479950,3cyclictest0-21swapper/120:40:101
319479950,2cyclictest0-21swapper/119:35:121
319479950,1cyclictest0-21swapper/121:56:421
319479950,0cyclictest0-21swapper/123:40:511
319399950,4cyclictest30293-21ntp_states20:10:170
319399950,4cyclictest13433-21/usr/sbin/munin20:45:110
319399950,1cyclictest6415-21aten2.4-expect20:30:120
319399950,0cyclictest0-21swapper/021:00:150
319399950,0cyclictest0-21swapper/020:44:200
319399950,0cyclictest0-21swapper/020:00:500
27406250,0sleep10-21swapper/123:15:281
319589942,1cyclictest5427-21grep20:25:213
319589942,1cyclictest23556-21cut21:05:133
319589941,1cyclictest6842-21cstates20:30:143
319589940,2cyclictest0-21swapper/319:20:173
319589940,1cyclictest0-21swapper/320:20:133
319479941,1cyclictest0-21swapper/122:40:161
319479940,4cyclictest0-21swapper/121:00:271
319479940,3cyclictest0-21swapper/120:35:181
319479940,2cyclictest0-21swapper/121:25:211
319479940,1cyclictest0-21swapper/122:05:101
319479931,1cyclictest0-21swapper/121:05:101
319479931,1cyclictest0-21swapper/120:55:111
319479930,1cyclictest0-21swapper/120:45:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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