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2026-08-01 - 00:29
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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 Fri Jul 31, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
87992212150,22sleep30-21swapper/307:08:333
88012211147,20sleep00-21swapper/007:08:330
87822210156,42sleep10-21swapper/107:08:181
86842200162,25sleep20-21swapper/207:07:022
199092190,0sleep20-21swapper/210:20:142
161232190,0sleep216126-21sendmail_mailqu12:30:192
149022160,0sleep10-21swapper/110:59:061
9044991211,1cyclictest14797-21sh10:12:002
9044991211,1cyclictest14797-21sh10:12:002
901799114,6cyclictest11301-21snmpd08:40:000
901799110,5cyclictest19341-21sed07:30:000
905499104,3cyclictest240-21systemd-journal12:09:553
905499100,9cyclictest2054-21diskmemload09:24:333
904499100,1cyclictest0-21swapper/210:34:442
324542100,1sleep20-21swapper/210:37:172
90309990,5cyclictest203-21jbd2/sda2-807:55:051
90179999,0cyclictest9-21ksoftirqd/010:40:000
90179991,4cyclictest2054-21diskmemload11:36:220
90179990,4cyclictest2054-21diskmemload09:19:530
90179990,4cyclictest11671-21perf10:59:560
14740290,0sleep20-21swapper/210:58:362
90549987,1cyclictest35-21ksoftirqd/311:21:193
90549986,1cyclictest9004-21cyclictest12:14:523
90549986,1cyclictest11301-21snmpd12:17:393
90549986,1cyclictest11301-21snmpd11:12:383
90549986,1cyclictest11301-21snmpd10:41:183
90549986,1cyclictest11301-21snmpd10:38:493
90549986,1cyclictest11301-21snmpd09:45:203
90549986,1cyclictest11301-21snmpd09:34:073
90549986,1cyclictest11301-21snmpd09:10:023
90549986,1cyclictest11301-21snmpd08:18:543
90549985,2cyclictest11301-21snmpd09:56:423
90549982,2cyclictest693-21runrttasks10:15:103
90549981,4cyclictest16801-21/usr/sbin/munin11:00:203
90449986,1cyclictest61650irq/122-eno110:26:092
90449986,1cyclictest28-21ksoftirqd/208:39:142
90449985,3cyclictest12333-21taskset08:20:202
90309981,6cyclictest0-21swapper/109:11:221
90309981,3cyclictest0-21swapper/112:30:111
90309980,4cyclictest0-21swapper/109:15:081
90309980,1cyclictest0-21swapper/111:15:121
90179986,1cyclictest9-21ksoftirqd/007:35:000
90179986,1cyclictest11301-21snmpd12:10:440
90179986,1cyclictest11301-21snmpd10:15:580
90179986,1cyclictest11301-21snmpd08:57:420
90179984,1cyclictest0-21swapper/008:25:180
90179983,4cyclictest32352-21/usr/sbin/munin09:05:190
90179982,4cyclictest11532-21cron07:15:010
90179982,1cyclictest2054-21diskmemload09:30:130
90179981,6cyclictest2054-21diskmemload11:20:170
90179980,7cyclictest28629-21ssh10:31:170
90179980,7cyclictest0-21swapper/012:35:230
90179980,6cyclictest791-21ssh11:25:050
90179980,4cyclictest0-21swapper/011:55:090
90179980,4cyclictest0-21swapper/009:40:100
90179980,3cyclictest0-21swapper/010:20:120
90179980,1cyclictest31195-21timerwakeupswit12:05:220
90179980,1cyclictest29156-21ssh12:04:340
10557280,0sleep20-21swapper/210:51:322
90549976,1cyclictest25364-21cat07:40:173
90549976,1cyclictest11301-21snmpd12:35:043
90549975,1cyclictest35-21ksoftirqd/308:10:113
90549975,1cyclictest26628-21ssh09:43:423
90549975,1cyclictest22368-21ssh10:23:443
90549975,1cyclictest11301-21snmpd10:27:273
90549975,1cyclictest11301-21snmpd09:39:213
90549975,1cyclictest11301-21snmpd08:38:003
90549975,1cyclictest11301-21snmpd07:34:163
90549972,4cyclictest10929-21apt-get08:20:123
90549972,2cyclictest240-21systemd-journal09:20:003
90549971,4cyclictest27798-21sh11:15:233
90549970,4cyclictest0-21swapper/311:25:023
90549970,4cyclictest0-21swapper/310:00:113
90549970,2cyclictest0-21swapper/311:36:023
90449976,1cyclictest61650irq/122-eno112:38:302
90449976,1cyclictest61650irq/122-eno112:13:582
90449976,1cyclictest61650irq/122-eno111:55:092
90449976,1cyclictest61650irq/122-eno111:51:592
90449976,1cyclictest61650irq/122-eno111:45:172
90449976,1cyclictest61650irq/122-eno111:26:372
90449976,1cyclictest61650irq/122-eno111:05:212
90449976,1cyclictest61650irq/122-eno111:00:222
90449976,1cyclictest61650irq/122-eno110:45:012
90449976,1cyclictest61650irq/122-eno110:45:012
90449976,1cyclictest61650irq/122-eno110:05:322
90449976,1cyclictest61650irq/122-eno110:00:162
90449976,1cyclictest61650irq/122-eno107:35:222
90449976,1cyclictest61650irq/122-eno107:20:142
90449976,1cyclictest28-21ksoftirqd/208:20:002
90449975,1cyclictest61650irq/122-eno108:30:182
90449975,1cyclictest5191-21rm09:14:082
90449970,5cyclictest14694-21kworker/u8:009:15:192
90449970,3cyclictest0-21swapper/212:20:102
90309972,4cyclictest0-21swapper/107:40:131
90309971,4cyclictest0-21swapper/109:50:221
90309971,3cyclictest0-21swapper/110:35:211
90309971,1cyclictest0-21swapper/110:41:211
90309970,4cyclictest0-21swapper/109:45:131
90309970,4cyclictest0-21swapper/107:15:111
90309970,1cyclictest0-21swapper/111:54:051
90179976,1cyclictest733-21sshd08:15:140
90179975,1cyclictest9-21ksoftirqd/009:00:110
90179975,1cyclictest32023-21ntpq09:50:200
90179975,1cyclictest11301-21snmpd07:52:250
90179974,1cyclictest2054-21diskmemload09:11:560
90179974,0cyclictest2054-21diskmemload11:16:130
90179972,1cyclictest22486-21/usr/sbin/munin11:10:180
90179971,1cyclictest0-21swapper/007:17:250
90179970,6cyclictest5570-21fschecks_time10:45:150
90179970,6cyclictest5570-21fschecks_time10:45:140
90179970,6cyclictest2054-21diskmemload11:50:290
90179970,6cyclictest15486-21ssh11:00:110
90179970,6cyclictest13866-21smartctl09:25:140
90179970,6cyclictest0-21swapper/012:20:120
90179970,6cyclictest0-21swapper/011:34:050
90179970,6cyclictest0-21swapper/010:05:140
90179970,6cyclictest0-21swapper/010:01:410
90179970,6cyclictest0-21swapper/008:30:170
90179970,6cyclictest0-21swapper/008:00:170
90179970,5cyclictest10922-21cat09:20:230
90179970,4cyclictest6007-21latency_hist08:10:000
90179970,2cyclictest0-21swapper/012:25:120
90179970,1cyclictest6454-21ssh12:16:530
90179970,1cyclictest2054-21diskmemload09:37:350
90179970,1cyclictest17087-21ssh11:45:570
90179970,1cyclictest15947-21ntp_states12:30:170
90179970,1cyclictest0-21swapper/011:40:180
31812270,1sleep20-21swapper/212:06:492
10771271,0sleep32054-21diskmemload10:52:123
90549966,0cyclictest238412sleep307:35:233
90549965,1cyclictest580-21ssh09:51:423
90549965,1cyclictest32417-21cat07:55:153
90549965,1cyclictest23366-21ssh11:55:153
90549965,1cyclictest20261-21ssh11:50:193
90549965,1cyclictest14393-21ssh11:43:383
90549965,1cyclictest14381-21ssh10:10:403
90549965,1cyclictest14381-21ssh10:10:393
90549965,1cyclictest11301-21snmpd08:44:523
90549965,1cyclictest11301-21snmpd07:18:573
90549964,2cyclictest18428-1kworker/u9:211:05:383
90549964,1cyclictest11301-21snmpd08:01:103
90549964,1cyclictest11301-21snmpd07:21:223
90549963,1cyclictest2054-21diskmemload12:25:203
90549963,1cyclictest2054-21diskmemload12:00:193
90549963,0cyclictest2054-21diskmemload10:56:473
90549962,0cyclictest2054-21diskmemload10:49:063
90549962,0cyclictest2054-21diskmemload10:49:063
90549960,6cyclictest0-21swapper/312:21:463
90549960,6cyclictest0-21swapper/310:05:183
90549960,2cyclictest31407-21/usr/sbin/munin09:00:213
90549960,2cyclictest0-21swapper/312:30:113
90449966,0cyclictest61650irq/122-eno112:25:442
90449966,0cyclictest61650irq/122-eno112:16:102
90449966,0cyclictest61650irq/122-eno111:35:142
90449966,0cyclictest61650irq/122-eno111:30:042
90449966,0cyclictest61650irq/122-eno111:16:562
90449966,0cyclictest61650irq/122-eno110:40:122
90449966,0cyclictest61650irq/122-eno110:15:222
90449966,0cyclictest61650irq/122-eno109:56:502
90449966,0cyclictest61650irq/122-eno109:35:142
90449966,0cyclictest61650irq/122-eno109:30:202
90449966,0cyclictest61650irq/122-eno109:25:202
90449966,0cyclictest61650irq/122-eno109:20:112
90449966,0cyclictest61650irq/122-eno109:07:412
90449966,0cyclictest61650irq/122-eno108:51:442
90449966,0cyclictest61650irq/122-eno108:00:112
90449966,0cyclictest61650irq/122-eno107:58:132
90449966,0cyclictest61650irq/122-eno107:50:352
90449966,0cyclictest61650irq/122-eno107:45:202
90449966,0cyclictest61650irq/122-eno107:32:142
90449965,1cyclictest61650irq/122-eno111:40:152
90449965,1cyclictest28-21ksoftirqd/207:15:012
90449965,1cyclictest23793-21ssh09:40:082
90449965,0cyclictest61650irq/122-eno111:20:122
90449965,0cyclictest61650irq/122-eno107:20:012
90449964,1cyclictest61650irq/122-eno108:45:142
90449964,1cyclictest583-21in:imuxsock07:30:012
90449964,1cyclictest28-21ksoftirqd/208:40:122
90449964,1cyclictest0-21swapper/209:45:152
90449963,2cyclictest26891-21rm12:00:142
90449962,1cyclictest32050-21/usr/sbin/munin09:50:192
90449960,6cyclictest0-21swapper/211:11:372
90449960,6cyclictest0-21swapper/209:03:242
90449960,6cyclictest0-21swapper/208:58:482
90309965,1cyclictest0-21swapper/108:35:501
90309961,3cyclictest0-21swapper/111:30:101
90309960,6cyclictest0-21swapper/111:25:351
90309960,6cyclictest0-21swapper/111:22:191
90309960,6cyclictest0-21swapper/111:08:581
90309960,6cyclictest0-21swapper/111:03:521
90309960,6cyclictest0-21swapper/110:15:151
90309960,6cyclictest0-21swapper/110:05:321
90309960,6cyclictest0-21swapper/109:39:441
90309960,6cyclictest0-21swapper/109:34:461
90309960,6cyclictest0-21swapper/107:35:461
90309960,6cyclictest0-21swapper/107:26:211
90309960,5cyclictest0-21swapper/111:40:511
90309960,5cyclictest0-21swapper/108:57:041
90309960,5cyclictest0-21swapper/107:50:181
90309960,5cyclictest0-21swapper/107:45:051
90309960,5cyclictest0-21swapper/107:10:161
90309960,4cyclictest0-21swapper/112:26:101
90309960,4cyclictest0-21swapper/112:01:461
90309960,4cyclictest0-21swapper/109:28:071
90309960,3cyclictest0-21swapper/110:45:111
90309960,3cyclictest0-21swapper/110:45:101
90309960,1cyclictest0-21swapper/111:35:151
90309960,1cyclictest0-21swapper/110:20:341
90309960,0cyclictest0-21swapper/109:55:511
90179966,0cyclictest2054-21diskmemload10:51:120
90179965,1cyclictest23658-21grep10:25:140
90179965,1cyclictest1156-21ssh10:40:060
90179964,1cyclictest11301-21snmpd08:10:320
90179963,2cyclictest22117-21cut07:35:120
90179962,2cyclictest548-21systemd-logind10:10:190
90179962,2cyclictest548-21systemd-logind10:10:190
90179961,3cyclictest240-21systemd-journal09:55:000
90179960,6cyclictest0-21swapper/011:07:050
90179960,6cyclictest0-21swapper/008:40:150
90179960,6cyclictest0-21swapper/007:45:120
90179960,6cyclictest0-21swapper/007:20:190
90179960,1cyclictest27320-21apt-get09:45:110
90179960,1cyclictest0-21swapper/008:45:190
90179960,0cyclictest0-21swapper/008:54:550
90179960,0cyclictest0-21swapper/007:59:580
90179960,0cyclictest0-21swapper/007:42:030
23213260,0sleep10-21swapper/108:45:141
90549954,1cyclictest35-21ksoftirqd/308:56:453
90549954,1cyclictest27477-21cat10:30:173
90549954,1cyclictest15330-21sshd08:29:143
90549954,1cyclictest12994-21ssh09:25:063
90549953,1cyclictest23705-21sed08:45:163
90549953,1cyclictest2054-21diskmemload11:30:393
90549953,1cyclictest16137-21df08:30:153
90549953,0cyclictest2054-21diskmemload11:46:093
90549951,1cyclictest5947-21apt08:10:013
90549950,3cyclictest0-21swapper/307:10:183
90449955,0cyclictest61650irq/122-eno108:05:222
90449955,0cyclictest61650irq/122-eno107:43:102
90309953,1cyclictest0-21swapper/110:34:161
90309952,0cyclictest0-21swapper/111:45:211
90309951,4cyclictest0-21swapper/111:11:471
90309951,3cyclictest0-21swapper/112:35:301
90309951,3cyclictest0-21swapper/112:19:591
90309951,2cyclictest0-21swapper/109:00:131
90309951,2cyclictest0-21swapper/108:40:221
90309951,2cyclictest0-21swapper/108:30:131
90309951,2cyclictest0-21swapper/108:15:001
90309950,5cyclictest0-21swapper/110:50:201
90309950,5cyclictest0-21swapper/110:26:381
90309950,5cyclictest0-21swapper/108:26:231
90309950,4cyclictest0-21swapper/109:20:091
90309950,3cyclictest0-21swapper/110:14:311
90309950,3cyclictest0-21swapper/110:14:311
90309950,0cyclictest0-21swapper/112:10:471
90179950,4cyclictest10926-21/usr/sbin/munin08:20:190
90549943,1cyclictest29305-21aten2.4-expect07:50:143
90549943,1cyclictest26440-21ntp_states08:50:183
90549941,1cyclictest32355-21apt-get09:05:123
90549940,1cyclictest27321-21/usr/sbin/munin07:45:143
90549940,1cyclictest18193-21missed_timers07:25:173
90449943,1cyclictest28-21ksoftirqd/208:25:122
90449943,1cyclictest11301-21snmpd08:10:022
90309944,0cyclictest0-21swapper/108:51:161
90309943,1cyclictest218162sleep107:34:361
90309941,2cyclictest0-21swapper/109:40:111
90309941,2cyclictest0-21swapper/109:05:111
90309941,2cyclictest0-21swapper/108:15:111
90309940,4cyclictest0-21swapper/108:01:251
90309940,3cyclictest0-21swapper/112:22:191
90309940,3cyclictest0-21swapper/111:55:121
90309940,2cyclictest0-21swapper/110:00:211
90309940,2cyclictest0-21swapper/108:20:131
90309940,1cyclictest0-21swapper/112:05:161
90309940,0cyclictest0-21swapper/107:21:561
90309930,1cyclictest0-21swapper/108:05:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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