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2026-05-07 - 08:22
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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 Thu May 07, 2026 00:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205852209157,26sleep30-21swapper/319:05:023
205852209157,26sleep30-21swapper/319:05:013
225062206156,24sleep00-21swapper/019:07:290
225062206156,24sleep00-21swapper/019:07:280
224882201160,27sleep20-21swapper/219:07:132
224882201160,27sleep20-21swapper/219:07:132
224102198159,26sleep10-21swapper/119:06:131
224102198159,26sleep10-21swapper/119:06:121
221132670,0sleep00-21swapper/022:41:540
122822620,0sleep30-21swapper/323:55:153
22799991615,1cyclictest28-21ksoftirqd/223:32:182
200062160,0sleep00-21swapper/000:05:140
2279999147,4cyclictest28-21ksoftirqd/200:11:222
253742130,0sleep30-21swapper/320:20:163
22799991313,0cyclictest28-21ksoftirqd/222:19:592
22799991313,0cyclictest28-21ksoftirqd/221:16:202
22799991312,1cyclictest28-21ksoftirqd/223:47:192
22799991212,0cyclictest28-21ksoftirqd/222:47:162
22799991212,0cyclictest28-21ksoftirqd/222:47:162
22799991211,1cyclictest28-21ksoftirqd/222:05:322
22799991210,1cyclictest28-21ksoftirqd/219:24:592
22799991210,1cyclictest28-21ksoftirqd/200:40:002
2279999120,0cyclictest0-21swapper/221:46:082
2280799110,8cyclictest0-21swapper/300:38:493
22799991110,1cyclictest28-21ksoftirqd/221:34:082
22799991110,1cyclictest28-21ksoftirqd/219:15:012
2279499111,4cyclictest15430-21diskmemload22:25:120
2280799109,1cyclictest35-21ksoftirqd/320:34:593
2280799109,1cyclictest35-21ksoftirqd/319:15:003
2279999109,1cyclictest28-21ksoftirqd/222:37:202
2279999109,1cyclictest28-21ksoftirqd/221:40:012
2279999109,1cyclictest28-21ksoftirqd/221:27:482
2279999109,1cyclictest28-21ksoftirqd/220:55:002
2279999109,1cyclictest28-21ksoftirqd/220:00:192
2279999109,1cyclictest28-21ksoftirqd/200:20:002
2279999108,1cyclictest28-21ksoftirqd/223:20:122
2279999108,1cyclictest28-21ksoftirqd/222:10:102
2279999108,1cyclictest28-21ksoftirqd/222:00:192
228079999,0cyclictest35-21ksoftirqd/321:45:123
228079992,6cyclictest21235-21timerwakeupswit21:15:213
228079991,3cyclictest0-21swapper/319:45:183
227999998,1cyclictest28-21ksoftirqd/223:25:122
227999998,1cyclictest28-21ksoftirqd/223:15:202
227999998,1cyclictest28-21ksoftirqd/221:50:042
227999998,1cyclictest28-21ksoftirqd/221:20:132
227999998,1cyclictest271rcuc/220:55:152
227999997,1cyclictest28-21ksoftirqd/221:40:132
227999997,1cyclictest28-21ksoftirqd/221:00:172
227999990,7cyclictest441-21awk19:30:002
227949992,4cyclictest0-21swapper/021:10:170
228079986,1cyclictest30048-21ntp_kernel_pll_23:35:163
228079984,2cyclictest240-21systemd-journal21:15:013
228079983,2cyclictest1259-21cut19:30:153
228079982,4cyclictest0-21swapper/323:10:173
228079981,5cyclictest2637-21kworker/u8:023:08:423
227999988,0cyclictest28-21ksoftirqd/222:50:132
227999988,0cyclictest28-21ksoftirqd/200:30:142
227999988,0cyclictest28-21ksoftirqd/200:00:182
227999987,1cyclictest28-21ksoftirqd/223:55:112
227999987,1cyclictest28-21ksoftirqd/223:10:042
227999987,1cyclictest28-21ksoftirqd/223:08:282
227999987,1cyclictest28-21ksoftirqd/223:00:072
227999987,1cyclictest28-21ksoftirqd/222:43:012
227999987,1cyclictest28-21ksoftirqd/222:26:202
227999987,1cyclictest28-21ksoftirqd/222:20:152
227999987,1cyclictest28-21ksoftirqd/200:05:012
227999986,1cyclictest61650irq/122-eno122:30:112
227999986,1cyclictest61650irq/122-eno121:10:142
227999986,1cyclictest28-21ksoftirqd/223:50:142
227999986,1cyclictest28-21ksoftirqd/223:39:122
227999986,1cyclictest28-21ksoftirqd/220:34:592
227999986,1cyclictest28-21ksoftirqd/219:45:102
227989981,4cyclictest0-21swapper/119:45:111
227989980,5cyclictest0-21swapper/119:40:111
227949986,1cyclictest1508-21ssh21:31:330
227949983,4cyclictest0-21swapper/020:45:170
227949981,6cyclictest25473-21ssh23:30:140
227949980,7cyclictest8587-21ssh00:33:380
227949980,6cyclictest0-21swapper/022:56:300
228079976,1cyclictest29302-21cat19:20:153
228079976,1cyclictest13379-21cat19:55:153
228079975,1cyclictest32286-21ssh22:12:503
228079973,3cyclictest561-21nscd21:32:593
228079973,2cyclictest240-21systemd-journal20:05:133
228079973,2cyclictest240-21systemd-journal19:38:433
228079971,4cyclictest26666-1kworker/u9:122:58:483
228079970,3cyclictest0-21swapper/323:25:013
228079970,1cyclictest32324-21ssh00:20:283
228079970,1cyclictest240-21systemd-journal23:45:333
227999977,0cyclictest28-21ksoftirqd/221:55:202
227999976,1cyclictest28-21ksoftirqd/222:55:212
227999976,1cyclictest28-21ksoftirqd/221:05:212
227999976,1cyclictest28-21ksoftirqd/220:45:152
227999976,1cyclictest28-21ksoftirqd/220:40:132
227999976,1cyclictest28-21ksoftirqd/220:20:162
227999976,1cyclictest28-21ksoftirqd/220:15:122
227999976,1cyclictest28-21ksoftirqd/219:55:102
227999976,1cyclictest28-21ksoftirqd/219:10:172
227999976,1cyclictest28-21ksoftirqd/200:25:162
227999976,1cyclictest28-21ksoftirqd/200:20:162
227999976,1cyclictest24722-21kworker/2:120:35:152
227999976,1cyclictest24722-21kworker/2:120:10:122
227999976,0cyclictest61650irq/122-eno123:40:122
227999975,1cyclictest28-21ksoftirqd/219:45:002
227989970,6cyclictest0-21swapper/123:25:171
227989970,4cyclictest0-21swapper/123:20:061
227989970,4cyclictest0-21swapper/100:10:111
227989970,3cyclictest0-21swapper/121:40:111
227949976,1cyclictest371-1kworker/u9:100:22:320
227949976,1cyclictest18093-21cat20:05:160
227949976,1cyclictest16517-21ssh23:17:460
227949975,1cyclictest9-21ksoftirqd/019:29:590
227949973,2cyclictest240-21systemd-journal19:20:010
227949973,0cyclictest0-21swapper/020:35:170
227949971,5cyclictest10101-21ssh23:10:090
227949970,6cyclictest6990-21chrt22:21:440
227949970,6cyclictest5179-21perf19:40:000
227949970,6cyclictest3624-21uptime00:25:210
227949970,6cyclictest31491-21ssh22:10:350
227949970,6cyclictest25070-1kworker/u9:121:29:590
227949970,6cyclictest2476-21ssh23:41:370
227949970,6cyclictest24732-21users00:10:210
227949970,6cyclictest1307-21/usr/sbin/munin20:40:190
227949970,6cyclictest12558-21ssh00:39:140
227949970,6cyclictest11490-21apt-get23:55:110
227949970,4cyclictest7489-21perf23:50:000
227949970,4cyclictest27229-21diskstats00:15:130
227949970,4cyclictest0-21swapper/023:20:110
227949970,1cyclictest8564-21ssh23:06:290
227949970,1cyclictest7921-21hddtemp_smartct21:40:140
227949970,1cyclictest3792-21fschecks_count21:35:140
227949970,1cyclictest3119-21ssh22:16:280
227949970,1cyclictest28118-21grep22:50:130
227949970,1cyclictest24911-21ssh21:20:190
227949970,1cyclictest23707-21ssh22:45:080
227949970,1cyclictest23707-21ssh22:45:070
227949970,1cyclictest15430-21diskmemload22:36:190
227949970,1cyclictest15430-21diskmemload21:15:470
227949970,1cyclictest11210-21cron23:55:010
227949970,1cyclictest0-21swapper/023:27:220
227949970,1cyclictest0-21swapper/022:30:190
227949970,1cyclictest0-21swapper/022:05:140
227949970,1cyclictest0-21swapper/021:58:010
227949970,1cyclictest0-21swapper/019:40:100
227949970,1cyclictest0-21swapper/000:00:130
8275264,1sleep09-21ksoftirqd/019:45:130
228079965,1cyclictest9740-21ntpq20:55:173
228079965,1cyclictest9389-21ssh21:41:453
228079965,1cyclictest8498-21ssh00:33:223
228079965,1cyclictest5591-21ssh23:03:443
228079965,1cyclictest4015-21ssh22:18:583
228079965,1cyclictest30004-21ssh22:52:203
228079965,1cyclictest28141-21ssh22:06:423
228079965,1cyclictest27402-21ssh23:31:403
228079965,1cyclictest18316-21ssh22:36:523
228079965,1cyclictest18308-21ssh21:55:023
228079965,1cyclictest16494-21ssh21:50:353
228079965,1cyclictest15736-21cat20:00:143
228079965,1cyclictest10803-21ssh22:26:513
228079965,0cyclictest15430-21diskmemload22:31:253
228079964,1cyclictest28163-21df_inode21:25:143
228079963,1cyclictest24648-21ssh21:20:173
228079963,1cyclictest13650irq/124-ahci[0019:54:553
228079962,2cyclictest15430-21diskmemload22:45:193
228079962,2cyclictest15430-21diskmemload22:45:193
228079962,1cyclictest0-21swapper/300:25:113
228079961,4cyclictest0-21swapper/323:50:113
228079961,3cyclictest27990-21/usr/sbin/munin20:25:203
228079961,3cyclictest0-21swapper/321:35:173
228079961,2cyclictest5940-21/usr/sbin/munin19:40:143
228079961,2cyclictest4698-21apt-get22:20:093
228079961,2cyclictest240-21systemd-journal20:20:003
228079960,4cyclictest693-21runrttasks20:45:253
228079960,4cyclictest0-21swapper/300:12:163
228079960,2cyclictest0-21swapper/300:15:123
228079960,1cyclictest240-21systemd-journal20:54:563
228079960,1cyclictest20810-21timerwakeupswit00:05:183
228079960,1cyclictest14018-21tune2fs21:05:153
228079960,1cyclictest0-21swapper/322:40:103
228079960,0cyclictest0-21swapper/323:20:583
227999966,0cyclictest61650irq/122-eno119:31:242
227999966,0cyclictest28-21ksoftirqd/220:25:122
227999965,1cyclictest28-21ksoftirqd/219:50:102
227999965,1cyclictest24722-21kworker/2:119:35:172
227999964,1cyclictest28-21ksoftirqd/220:05:122
227989966,0cyclictest0-21swapper/100:35:181
227989962,1cyclictest0-21swapper/121:50:061
227989961,2cyclictest0-21swapper/100:25:021
227989960,5cyclictest0-21swapper/122:37:401
227989960,4cyclictest0-21swapper/123:19:311
227989960,4cyclictest0-21swapper/122:30:161
227989960,4cyclictest0-21swapper/122:18:441
227989960,4cyclictest0-21swapper/121:32:381
227989960,4cyclictest0-21swapper/100:01:531
227989960,3cyclictest0-21swapper/123:57:031
227989960,3cyclictest0-21swapper/122:52:031
227989960,3cyclictest0-21swapper/121:10:121
227989960,3cyclictest0-21swapper/119:30:121
227989960,2cyclictest0-21swapper/120:00:181
227989960,2cyclictest0-21swapper/119:35:181
227989960,1cyclictest0-21swapper/123:46:211
227989960,1cyclictest0-21swapper/100:21:061
227949965,1cyclictest2594-21ssh23:00:100
227949965,1cyclictest23145-21telnet19:10:120
227949965,1cyclictest14439-21ntpq21:05:170
227949965,1cyclictest14218-21users19:55:200
227949962,0cyclictest0-21swapper/019:30:180
227949961,1cyclictest16054-21ssh21:50:190
227949960,6cyclictest0-21swapper/023:35:030
227949960,6cyclictest0-21swapper/019:50:550
227949960,5cyclictest130382sleep021:04:430
227949960,5cyclictest10847-21ssh21:45:100
227949960,1cyclictest0-21swapper/020:30:100
227949960,0cyclictest0-21swapper/022:00:130
227949960,0cyclictest0-21swapper/020:52:010
227949960,0cyclictest0-21swapper/020:25:180
227949960,0cyclictest0-21swapper/020:20:310
227949960,0cyclictest0-21swapper/020:15:110
227949960,0cyclictest0-21swapper/020:11:490
227949960,0cyclictest0-21swapper/020:03:160
227949960,0cyclictest0-21swapper/019:20:160
228079954,1cyclictest35-21ksoftirqd/320:14:163
228079954,1cyclictest2133-21ssh23:40:393
228079951,2cyclictest0-21swapper/320:35:113
228079951,1cyclictest240-21systemd-journal00:00:033
228079951,0cyclictest15430-21diskmemload23:16:283
228079950,3cyclictest240-21systemd-journal20:44:593
228079950,3cyclictest0-21swapper/322:01:133
228079950,3cyclictest0-21swapper/321:00:143
227989955,0cyclictest0-21swapper/123:02:101
227989955,0cyclictest0-21swapper/122:57:241
227989955,0cyclictest0-21swapper/122:25:031
227989953,1cyclictest25544-21chrt22:04:541
227989951,2cyclictest0-21swapper/119:15:001
227989951,1cyclictest0-21swapper/121:59:061
227989950,5cyclictest0-21swapper/123:12:161
227989950,5cyclictest0-21swapper/121:09:081
227989950,5cyclictest0-21swapper/120:24:221
227989950,5cyclictest0-21swapper/120:10:151
227989950,4cyclictest0-21swapper/122:05:101
227989950,4cyclictest0-21swapper/121:27:021
227989950,3cyclictest0-21swapper/123:53:451
227989950,3cyclictest0-21swapper/121:22:121
227989950,3cyclictest0-21swapper/120:50:121
227989950,3cyclictest0-21swapper/120:40:151
227989950,3cyclictest0-21swapper/100:30:051
227989950,3cyclictest0-21swapper/100:08:061
227989950,2cyclictest0-21swapper/123:40:111
227989950,2cyclictest0-21swapper/123:30:141
227989950,2cyclictest0-21swapper/123:05:131
227989950,2cyclictest0-21swapper/122:45:291
227989950,2cyclictest0-21swapper/122:45:281
227989950,2cyclictest0-21swapper/122:12:181
227989950,2cyclictest0-21swapper/120:25:121
227989950,2cyclictest0-21swapper/100:15:111
227989950,1cyclictest0-21swapper/123:36:101
227989950,1cyclictest0-21swapper/122:40:101
227989950,1cyclictest0-21swapper/122:21:131
227989950,1cyclictest0-21swapper/121:45:161
227989950,1cyclictest0-21swapper/121:35:141
227989950,1cyclictest0-21swapper/120:55:151
227989950,1cyclictest0-21swapper/119:20:141
227989950,0cyclictest0-21swapper/121:01:171
227989950,0cyclictest0-21swapper/119:15:101
227949954,1cyclictest9713-21ntpq20:55:170
228079943,1cyclictest26841-21hddtemp_smartct19:15:143
228079941,0cyclictest0-21swapper/319:25:143
227989941,2cyclictest0-21swapper/120:15:111
227989941,1cyclictest0-21swapper/120:45:151
227989941,1cyclictest0-21swapper/120:30:131
227989940,1cyclictest0-21swapper/121:15:141
227989940,0cyclictest0-21swapper/120:05:191
227989931,2cyclictest0-21swapper/120:35:111
227989931,1cyclictest0-21swapper/119:55:111
227989930,3cyclictest0-21swapper/119:50:061
227989930,2cyclictest0-21swapper/119:25:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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