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2026-08-22 - 11:50
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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 Aug 22, 2026 00:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12702208175,21sleep00-21swapper/019:08:210
13112202158,28sleep10-21swapper/119:08:541
13492200159,26sleep20-21swapper/219:09:242
10672199160,26sleep30-21swapper/319:05:423
217952610,0sleep10-21swapper/100:05:141
1487991312,1cyclictest35-21ksoftirqd/322:20:013
1487991312,1cyclictest35-21ksoftirqd/322:20:003
1478991311,1cyclictest26767-21apt-get21:10:002
1478991311,1cyclictest16540-21find20:45:182
147899130,2cyclictest24585-21/usr/sbin/munin00:10:152
147899130,12cyclictest26760-21diskmemload21:15:132
1487991211,1cyclictest35-21ksoftirqd/300:25:013
1487991210,1cyclictest35-21ksoftirqd/323:40:013
1487991210,1cyclictest35-21ksoftirqd/323:40:003
147899122,7cyclictest1408-21apt-get22:05:132
1478991211,1cyclictest0-21swapper/222:15:152
1478991211,1cyclictest0-21swapper/222:15:142
1478991210,2cyclictest0-21swapper/219:10:122
1478991210,1cyclictest6651-21http23:45:012
1478991210,1cyclictest0-21swapper/220:20:172
147399120,12cyclictest0-21swapper/120:30:111
147299129,1cyclictest9-21ksoftirqd/019:59:590
147299120,12cyclictest0-21swapper/020:15:150
288572110,0sleep10-21swapper/122:44:061
1487991110,1cyclictest35-21ksoftirqd/321:35:013
1487991110,1cyclictest35-21ksoftirqd/320:25:013
1487991110,1cyclictest35-21ksoftirqd/320:04:593
148799110,4cyclictest5533-21/usr/sbin/munin21:25:183
147899119,2cyclictest0-21swapper/220:15:162
147899119,1cyclictest7159-21basename20:25:192
147899119,1cyclictest61650irq/122-eno122:31:052
1478991110,1cyclictest61650irq/122-eno121:21:522
1478991110,1cyclictest21352-21ssh23:19:362
1478991110,1cyclictest0-21swapper/222:35:192
147899111,7cyclictest9869-21apt-get00:35:112
147299119,1cyclictest9-21ksoftirqd/021:00:000
148799109,1cyclictest35-21ksoftirqd/323:45:143
148799109,1cyclictest35-21ksoftirqd/323:00:003
148799109,1cyclictest35-21ksoftirqd/322:35:003
148799109,1cyclictest35-21ksoftirqd/321:45:133
148799107,1cyclictest35-21ksoftirqd/321:20:003
148799105,4cyclictest11301-21snmpd20:27:073
1487991010,0cyclictest35-21ksoftirqd/300:29:593
147899109,1cyclictest0-21swapper/223:14:012
147899109,1cyclictest0-21swapper/222:22:322
147899109,1cyclictest0-21swapper/221:30:222
147899109,1cyclictest0-21swapper/221:13:572
147899108,1cyclictest29100-21hddtemp_smartct00:15:132
147899107,3cyclictest0-21swapper/220:35:182
14879999,0cyclictest35-21ksoftirqd/323:20:003
14879998,1cyclictest35-21ksoftirqd/322:45:133
14879998,1cyclictest35-21ksoftirqd/321:45:003
14879998,1cyclictest35-21ksoftirqd/300:35:143
14879997,1cyclictest35-21ksoftirqd/323:00:133
14879991,3cyclictest28768-21apt-get23:30:123
14879990,3cyclictest0-21swapper/319:45:103
14789998,1cyclictest0-21swapper/223:55:452
14789998,1cyclictest0-21swapper/223:26:522
14789998,1cyclictest0-21swapper/222:44:432
14789998,1cyclictest0-21swapper/222:01:032
14789998,1cyclictest0-21swapper/221:51:572
14789997,2cyclictest0-21swapper/200:22:412
14789997,1cyclictest0-21swapper/219:15:212
14789996,2cyclictest32182-21strings20:10:142
14789994,4cyclictest0-21swapper/200:30:432
14789993,4cyclictest0-21swapper/200:00:352
14789991,8cyclictest28-21ksoftirqd/223:51:342
14789991,8cyclictest28-21ksoftirqd/223:36:462
14789991,8cyclictest28-21ksoftirqd/223:36:452
14789991,8cyclictest28-21ksoftirqd/221:27:262
14789991,8cyclictest28-21ksoftirqd/221:04:252
14789991,8cyclictest28-21ksoftirqd/220:57:262
14789991,8cyclictest28-21ksoftirqd/220:31:182
14789991,8cyclictest28-21ksoftirqd/220:08:122
14789991,8cyclictest28-21ksoftirqd/219:45:522
14789991,8cyclictest28-21ksoftirqd/219:44:162
14789991,8cyclictest28-21ksoftirqd/219:35:062
14789991,8cyclictest271rcuc/223:31:012
14789991,8cyclictest271rcuc/200:05:072
14789991,7cyclictest0-21swapper/222:55:092
14789991,7cyclictest0-21swapper/219:20:192
14789991,0cyclictest28-21ksoftirqd/223:21:472
14789991,0cyclictest28-21ksoftirqd/222:48:162
14789991,0cyclictest28-21ksoftirqd/221:59:032
14789991,0cyclictest28-21ksoftirqd/221:45:222
14789991,0cyclictest28-21ksoftirqd/220:01:382
14789990,8cyclictest28-21ksoftirqd/219:31:102
14789990,8cyclictest28-21ksoftirqd/219:31:092
14789990,8cyclictest26760-21diskmemload23:45:182
14789990,5cyclictest4012-21/usr/sbin/munin00:25:162
14739991,7cyclictest0-21swapper/122:10:111
14729993,5cyclictest11697-21latency_hist22:20:010
14729993,5cyclictest11697-21latency_hist22:20:000
14729990,4cyclictest12561-21date21:35:000
14879987,1cyclictest35-21ksoftirqd/321:10:013
14879987,1cyclictest35-21ksoftirqd/319:42:553
14879987,1cyclictest35-21ksoftirqd/300:20:013
14879987,1cyclictest13650irq/124-ahci[0022:25:013
14879986,1cyclictest35-21ksoftirqd/321:35:123
14879980,1cyclictest0-21swapper/323:44:103
14789987,1cyclictest0-21swapper/222:50:002
14789987,1cyclictest0-21swapper/221:35:072
14789981,4cyclictest0-21swapper/223:05:142
14789981,0cyclictest28-21ksoftirqd/219:25:282
14789981,0cyclictest271rcuc/219:50:322
14789980,8cyclictest28-21ksoftirqd/222:10:262
14789980,8cyclictest28-21ksoftirqd/220:50:032
14789980,8cyclictest28-21ksoftirqd/220:40:102
14789980,0cyclictest28-21ksoftirqd/223:00:322
14789980,0cyclictest28-21ksoftirqd/222:25:262
14789980,0cyclictest28-21ksoftirqd/221:40:342
14789980,0cyclictest28-21ksoftirqd/219:55:092
14729987,1cyclictest9-21ksoftirqd/023:48:470
14729986,1cyclictest9-21ksoftirqd/020:14:590
14729986,1cyclictest8936-21perf21:30:010
14729986,1cyclictest11301-21snmpd23:56:400
14729986,1cyclictest11301-21snmpd23:34:390
14729986,1cyclictest11301-21snmpd22:35:550
14729986,1cyclictest11301-21snmpd19:34:240
14729986,1cyclictest11301-21snmpd19:34:230
14729983,1cyclictest26760-21diskmemload00:16:180
14729982,5cyclictest22620-21ntp_states19:50:170
14729982,4cyclictest26760-21diskmemload00:20:120
14729981,7cyclictest23178-1kworker/u9:200:06:270
14729981,6cyclictest0-21swapper/023:20:410
14729981,5cyclictest26760-21diskmemload23:28:410
14729981,4cyclictest16350-21perf19:40:010
14729980,7cyclictest277552chrt22:40:270
14729980,7cyclictest2600-21ssh22:51:170
14729980,7cyclictest20813-21ssh22:30:430
25857270,1sleep10-21swapper/121:52:501
14879977,0cyclictest23703-21latency_hist19:55:003
14879976,1cyclictest35-21ksoftirqd/323:59:553
14879976,1cyclictest35-21ksoftirqd/321:55:003
14879976,1cyclictest35-21ksoftirqd/320:44:593
14879976,1cyclictest35-21ksoftirqd/319:40:013
14879976,1cyclictest35-21ksoftirqd/319:15:003
14879976,1cyclictest11301-21snmpd22:54:563
14879976,1cyclictest11301-21snmpd20:54:203
14879975,1cyclictest25047-21ssh22:38:073
14879975,1cyclictest11301-21snmpd23:06:473
14879975,1cyclictest11301-21snmpd19:27:423
14879974,1cyclictest35-21ksoftirqd/319:15:003
14879972,4cyclictest11823-21apt-get19:30:123
14879972,4cyclictest11823-21apt-get19:30:113
14879972,1cyclictest25411-21hddtemp_smartct00:10:153
14879971,4cyclictest0-21swapper/322:44:383
14879970,6cyclictest27848-21ssh23:27:553
14879970,3cyclictest0-21swapper/322:05:143
14739973,0cyclictest0-21swapper/100:26:191
14739973,0cyclictest0-21swapper/100:15:101
14739971,6cyclictest0-21swapper/123:21:301
14739971,5cyclictest0-21swapper/123:25:131
14739971,3cyclictest0-21swapper/123:45:131
14739971,3cyclictest0-21swapper/122:20:191
14739971,3cyclictest0-21swapper/100:34:591
14739971,1cyclictest0-21swapper/123:43:141
14739970,6cyclictest0-21swapper/123:50:111
14739970,6cyclictest0-21swapper/122:00:201
14739970,3cyclictest0-21swapper/121:10:101
14739970,1cyclictest0-21swapper/121:20:321
14739970,1cyclictest0-21swapper/119:58:461
14729975,1cyclictest3431-21threads21:20:190
14729975,1cyclictest30043-21perf21:59:590
14729975,1cyclictest23701-21cstates21:50:140
14729975,1cyclictest11301-21snmpd21:08:370
14729972,4cyclictest32246-21/usr/sbin/munin23:35:150
14729972,4cyclictest32246-21/usr/sbin/munin23:35:150
14729972,1cyclictest16089-21perl22:25:130
14729971,6cyclictest0-21swapper/000:26:290
14729970,7cyclictest0-21swapper/023:04:110
14729970,6cyclictest7771-21tune2fs19:20:130
14729970,6cyclictest30136-21ssh21:14:130
14729970,6cyclictest26760-21diskmemload23:19:520
14729970,6cyclictest18484-21ssh00:00:140
14729970,6cyclictest13446-21threads22:20:210
14729970,6cyclictest1116-21ssh21:18:360
14729970,6cyclictest0-21swapper/020:40:210
14729970,6cyclictest0-21swapper/000:35:180
14729970,1cyclictest32205-21ssh22:00:400
14729970,1cyclictest1926-21ssh22:05:160
14729970,1cyclictest13281-21ssh23:06:450
14729970,1cyclictest0-21swapper/023:50:160
14729970,1cyclictest0-21swapper/022:10:150
14729970,1cyclictest0-21swapper/021:37:050
14729970,1cyclictest0-21swapper/020:50:110
14729970,1cyclictest0-21swapper/000:30:160
14879965,1cyclictest35-21ksoftirqd/320:35:013
14879965,1cyclictest35-21ksoftirqd/320:15:013
14879965,1cyclictest35-21ksoftirqd/300:25:123
14879965,1cyclictest19690-21ssh00:01:213
14879965,1cyclictest16866-21ssh23:12:013
14879965,1cyclictest13517-21ssh23:54:113
14879965,1cyclictest11301-21snmpd23:21:213
14879965,1cyclictest11301-21snmpd22:11:283
14879965,1cyclictest11301-21snmpd19:21:383
14879965,1cyclictest10986-21diskstats20:35:113
14879964,1cyclictest35-21ksoftirqd/320:55:123
14879961,4cyclictest15951-21diskstats22:25:143
14879961,3cyclictest0-21swapper/300:06:223
14879960,3cyclictest0-21swapper/321:15:123
14879960,2cyclictest0-21swapper/321:55:593
14879960,1cyclictest30846-21/usr/sbin/munin22:00:153
14879960,1cyclictest0-21swapper/321:11:073
14739964,1cyclictest0-21swapper/119:20:091
14739961,2cyclictest0-21swapper/122:15:171
14739961,2cyclictest0-21swapper/122:15:161
14739960,6cyclictest0-21swapper/123:55:141
14739960,6cyclictest0-21swapper/123:19:091
14739960,6cyclictest0-21swapper/122:38:201
14739960,6cyclictest0-21swapper/122:05:211
14739960,6cyclictest0-21swapper/121:49:351
14739960,6cyclictest0-21swapper/120:59:371
14739960,6cyclictest0-21swapper/120:53:361
14739960,6cyclictest0-21swapper/120:10:041
14739960,6cyclictest0-21swapper/119:54:431
14739960,6cyclictest0-21swapper/119:38:561
14739960,6cyclictest0-21swapper/100:35:441
14739960,3cyclictest0-21swapper/123:04:591
14739960,2cyclictest0-21swapper/122:30:121
14739960,2cyclictest0-21swapper/100:21:061
14739960,1cyclictest0-21swapper/123:05:141
14739960,1cyclictest0-21swapper/119:15:161
14729965,1cyclictest12622-21perf20:40:000
14729965,1cyclictest0-21swapper/020:21:460
14729964,1cyclictest9-21ksoftirqd/020:10:000
14729963,2cyclictest9093-21cat20:30:170
14729961,5cyclictest0-21swapper/021:04:350
14729960,6cyclictest0-21swapper/019:15:150
14729960,3cyclictest3866-21df_inode23:40:120
14729960,3cyclictest0-21swapper/022:55:140
14729960,1cyclictest26760-21diskmemload23:12:450
14729960,0cyclictest26760-21diskmemload21:45:070
14729960,0cyclictest0-21swapper/022:45:110
14729960,0cyclictest0-21swapper/021:40:240
14729960,0cyclictest0-21swapper/020:01:410
14729960,0cyclictest0-21swapper/019:48:490
14729960,0cyclictest0-21swapper/019:25:090
14729960,0cyclictest0-21swapper/019:10:020
14729960,0cyclictest0-21swapper/000:10:020
14879954,1cyclictest35-21ksoftirqd/320:15:003
14879953,1cyclictest11301-21snmpd21:02:443
14879952,2cyclictest24020-21apt-get19:55:113
14879950,3cyclictest16616-21swap20:45:183
14739951,1cyclictest0-21swapper/122:45:181
14739951,1cyclictest0-21swapper/120:20:011
14739951,1cyclictest0-21swapper/119:25:081
14739950,5cyclictest0-21swapper/121:55:411
14739950,5cyclictest0-21swapper/121:27:131
14739950,5cyclictest0-21swapper/120:08:491
14739950,5cyclictest0-21swapper/119:45:081
14739950,5cyclictest0-21swapper/119:11:121
14739950,4cyclictest0-21swapper/123:10:181
14739950,3cyclictest0-21swapper/120:25:111
14739950,3cyclictest0-21swapper/100:11:511
14739950,2cyclictest0-21swapper/122:29:121
14739950,2cyclictest0-21swapper/121:40:391
14739950,2cyclictest0-21swapper/121:36:451
14739950,2cyclictest0-21swapper/120:45:111
14739950,1cyclictest0-21swapper/100:01:121
14729953,1cyclictest15219-21cut20:45:100
14729953,1cyclictest11301-21snmpd20:25:100
14729950,5cyclictest0-21swapper/019:40:150
14879943,1cyclictest29265-21chrt20:05:153
14739944,0cyclictest0-21swapper/119:40:451
14739942,1cyclictest2066-21chrt23:36:481
14739942,1cyclictest2066-21chrt23:36:471
14739942,1cyclictest0-21swapper/121:15:171
14739941,1cyclictest0-21swapper/123:30:111
14739940,4cyclictest0-21swapper/121:00:151
14739940,4cyclictest0-21swapper/120:20:011
14739940,3cyclictest0-21swapper/121:05:051
14739940,1cyclictest0-21swapper/122:52:281
14739940,1cyclictest0-21swapper/121:30:151
14739940,0cyclictest0-21swapper/122:55:171
14739940,0cyclictest0-21swapper/120:35:171
14739931,1cyclictest0-21swapper/119:30:111
14739931,1cyclictest0-21swapper/119:30:101
14739930,2cyclictest0-21swapper/120:40:131
14739930,1cyclictest0-21swapper/120:00:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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