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2026-05-08 - 17:32
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Fri May 08, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128182211160,25sleep30-21swapper/307:09:083
107752205134,26sleep10-21swapper/107:05:041
127972199160,25sleep20-21swapper/207:08:512
126662198161,24sleep00-21swapper/007:07:070
73682660,0sleep10-21swapper/112:01:531
63442600,0sleep30-21swapper/311:17:513
158012590,1sleep11299099cyclictest10:05:101
236722150,0sleep10-21swapper/108:35:191
110372150,0sleep20-21swapper/212:06:392
1299899130,12cyclictest14117-21apt-get09:20:122
1298699123,4cyclictest2414-21latency_hist12:40:000
12986991211,1cyclictest9-21ksoftirqd/010:04:590
13004991110,1cyclictest35-21ksoftirqd/310:50:003
1300499110,6cyclictest0-21swapper/312:00:113
12998991110,1cyclictest28-21ksoftirqd/207:25:012
1300499109,1cyclictest35-21ksoftirqd/307:15:003
1300499108,1cyclictest35-21ksoftirqd/309:20:013
1300499108,1cyclictest35-21ksoftirqd/309:20:003
1299899109,1cyclictest28-21ksoftirqd/211:10:012
130049999,0cyclictest35-21ksoftirqd/311:44:393
130049998,1cyclictest6010-21diskmemload09:43:143
130049998,1cyclictest35-21ksoftirqd/311:50:013
130049998,1cyclictest35-21ksoftirqd/310:45:003
130049997,1cyclictest3669-21idleruntime-cro09:05:003
130049997,1cyclictest35-21ksoftirqd/310:25:003
130049997,1cyclictest35-21ksoftirqd/308:08:153
130049997,1cyclictest35-21ksoftirqd/307:35:013
130049991,2cyclictest0-21swapper/312:10:393
130049990,7cyclictest0-21swapper/308:23:553
130049990,5cyclictest3893-21apt-get09:05:103
130049990,5cyclictest0-21swapper/311:26:283
129989998,1cyclictest1747-21ntpd09:38:372
129989997,1cyclictest28-21ksoftirqd/207:54:592
129989996,2cyclictest4508-21/usr/sbin/munin09:50:172
129989990,5cyclictest0-21swapper/210:40:102
129869996,1cyclictest240-21systemd-journal09:55:000
130049987,1cyclictest35-21ksoftirqd/309:15:013
130049987,1cyclictest35-21ksoftirqd/308:20:003
130049986,1cyclictest568-21nscd11:32:383
130049986,1cyclictest35-21ksoftirqd/311:55:113
130049986,1cyclictest35-21ksoftirqd/311:05:013
130049986,1cyclictest22831-21cat08:35:143
130049982,5cyclictest561-21nscd09:35:543
130049982,2cyclictest0-21swapper/312:34:473
130049981,5cyclictest6010-21diskmemload10:02:053
129989987,1cyclictest28-21ksoftirqd/211:40:002
129989986,1cyclictest61650irq/122-eno110:50:152
129989986,1cyclictest61650irq/122-eno110:05:142
129989986,1cyclictest28-21ksoftirqd/208:40:112
129989981,6cyclictest0-21swapper/208:20:112
129989981,5cyclictest61650irq/122-eno109:43:262
129989981,3cyclictest0-21swapper/211:28:442
129909980,8cyclictest0-21swapper/111:46:481
129909980,8cyclictest0-21swapper/109:30:481
129869987,1cyclictest9-21ksoftirqd/012:20:000
129869987,1cyclictest9-21ksoftirqd/009:26:520
129869987,1cyclictest9-21ksoftirqd/008:55:000
129869987,1cyclictest9-21ksoftirqd/008:30:100
129869987,1cyclictest9-21ksoftirqd/008:30:010
129869987,1cyclictest20387-1kworker/u9:011:05:420
129869983,1cyclictest6010-21diskmemload10:16:460
129869981,6cyclictest0-21swapper/009:20:490
129869981,1cyclictest14966-21telnet11:30:100
129869981,1cyclictest0-21swapper/011:48:290
129869981,1cyclictest0-21swapper/011:41:470
129869981,1cyclictest0-21swapper/011:28:440
129869981,1cyclictest0-21swapper/011:22:120
129869981,1cyclictest0-21swapper/011:17:360
129869981,1cyclictest0-21swapper/010:54:330
129869981,1cyclictest0-21swapper/010:44:540
129869981,1cyclictest0-21swapper/010:06:150
129869980,7cyclictest6267-21/usr/sbin/munin09:10:150
129869980,7cyclictest27939-21ssh10:20:150
8798270,1sleep20-21swapper/209:12:312
3156270,0sleep30-21swapper/310:30:183
130049975,1cyclictest17181-21ssh09:23:343
130049975,1cyclictest15308-21ssh10:45:453
130049975,1cyclictest11209-21ssh09:58:353
130049974,2cyclictest6010-21diskmemload12:39:123
130049974,2cyclictest25858-21apt-get07:35:113
130049974,1cyclictest6010-21diskmemload12:27:353
130049973,2cyclictest32326-21apt-get11:10:113
130049971,5cyclictest4513-21apt-get09:50:093
130049970,6cyclictest15796-21ssh10:05:103
130049970,6cyclictest11643-21ssh12:08:223
130049970,4cyclictest6010-21diskmemload10:26:063
129989976,1cyclictest61650irq/122-eno112:20:182
129989976,1cyclictest61650irq/122-eno111:10:132
129989976,1cyclictest61650irq/122-eno110:55:212
129989976,1cyclictest61650irq/122-eno110:15:102
129989976,1cyclictest28-21ksoftirqd/212:15:132
129989976,0cyclictest61650irq/122-eno110:50:002
129989975,1cyclictest6763-21cat10:35:152
129989975,1cyclictest61650irq/122-eno111:30:112
129989975,1cyclictest61650irq/122-eno107:55:112
129989975,1cyclictest28224-21ssh11:46:012
129989975,1cyclictest24694-21ssh11:41:412
129989975,1cyclictest2402-21ssh11:55:162
129989975,1cyclictest11754-21perf10:00:002
129989974,1cyclictest240-21systemd-journal08:15:002
129989971,5cyclictest11534-21python09:15:202
129989971,5cyclictest11534-21python09:15:192
129989971,1cyclictest23505-21apt-get07:30:112
129989970,7cyclictest10253-21kworker/u8:209:45:022
129989970,1cyclictest18029-21apt-get09:25:102
129909971,4cyclictest203-21jbd2/sda2-812:05:211
129909970,7cyclictest203-21jbd2/sda2-811:03:381
129909970,7cyclictest0-21swapper/112:20:401
129909970,7cyclictest0-21swapper/109:23:241
129909970,7cyclictest0-21swapper/108:47:301
129909970,4cyclictest0-21swapper/111:25:181
129869971,6cyclictest0-21swapper/010:55:100
129869971,1cyclictest0-21swapper/012:10:560
129869971,1cyclictest0-21swapper/011:57:250
129869971,1cyclictest0-21swapper/011:36:230
129869971,1cyclictest0-21swapper/011:01:200
129869971,1cyclictest0-21swapper/010:47:560
129869971,0cyclictest0-21swapper/012:20:150
129869970,7cyclictest0-21swapper/010:10:180
129869970,7cyclictest0-21swapper/010:10:170
129869970,6cyclictest7725-21ssh10:35:320
129869970,6cyclictest31650-21telnet08:55:120
129869970,6cyclictest28084-21ssh09:37:040
129869970,6cyclictest25855-21/usr/sbin/munin07:35:190
129869970,6cyclictest23774-21/usr/sbin/munin12:25:140
129869970,6cyclictest0-21swapper/010:30:120
129869970,6cyclictest0-21swapper/007:30:140
129869970,1cyclictest610-21ssh10:26:380
129869970,1cyclictest5237-21/usr/sbin/munin08:00:210
129869970,1cyclictest5009-21/usr/sbin/munin12:00:210
129869970,1cyclictest29897-21ssh11:50:070
129869970,1cyclictest29814-21ssh12:31:430
129869970,1cyclictest1910-21ssh09:45:160
129869970,1cyclictest12506-21/usr/sbin/munin08:15:130
129869970,1cyclictest11599-21ssh12:08:160
129869970,1cyclictest11069-21ssh09:58:120
129869970,1cyclictest10774-21ssh09:15:150
129869970,1cyclictest10774-21ssh09:15:140
129869970,1cyclictest0-21swapper/011:10:240
129869970,1cyclictest0-21swapper/009:30:030
129869970,1cyclictest0-21swapper/008:35:340
130049966,0cyclictest35-21ksoftirqd/307:43:443
130049965,1cyclictest35-21ksoftirqd/309:00:003
130049964,2cyclictest6010-21diskmemload11:05:093
130049964,1cyclictest6010-21diskmemload09:31:483
130049964,1cyclictest35-21ksoftirqd/307:20:103
130049964,1cyclictest18182-21ssh12:15:403
130049963,1cyclictest240-21systemd-journal11:37:473
130049963,1cyclictest240-21systemd-journal10:15:003
130049962,2cyclictest240-21systemd-journal08:45:003
130049962,1cyclictest6010-21diskmemload09:27:003
130049961,2cyclictest6010-21diskmemload10:55:213
130049961,2cyclictest6010-21diskmemload10:36:483
130049961,2cyclictest6010-21diskmemload10:11:183
130049961,2cyclictest6010-21diskmemload10:11:183
130049960,3cyclictest6010-21diskmemload11:20:443
130049960,3cyclictest240-21systemd-journal07:54:553
130049960,3cyclictest15862-21timerwakeupswit07:15:013
130049960,3cyclictest0-21swapper/308:45:123
130049960,2cyclictest0-21swapper/312:20:143
130049960,2cyclictest0-21swapper/311:51:073
130049960,2cyclictest0-21swapper/309:45:073
129989966,0cyclictest61650irq/122-eno112:35:372
129989966,0cyclictest61650irq/122-eno112:25:362
129989966,0cyclictest61650irq/122-eno112:00:072
129989966,0cyclictest61650irq/122-eno111:51:432
129989966,0cyclictest61650irq/122-eno111:15:202
129989966,0cyclictest61650irq/122-eno111:00:002
129989966,0cyclictest61650irq/122-eno110:25:442
129989966,0cyclictest61650irq/122-eno110:20:522
129989966,0cyclictest61650irq/122-eno108:15:132
129989966,0cyclictest61650irq/122-eno108:00:132
129989966,0cyclictest61650irq/122-eno107:42:272
129989966,0cyclictest61650irq/122-eno107:10:062
129989965,1cyclictest8747-21ntpq08:05:172
129989965,1cyclictest61650irq/122-eno107:45:112
129989965,1cyclictest28-21ksoftirqd/212:10:122
129989965,1cyclictest28-21ksoftirqd/210:00:122
129989965,1cyclictest28-21ksoftirqd/209:04:592
129989965,1cyclictest28-21ksoftirqd/208:45:122
129989965,1cyclictest28-21ksoftirqd/207:15:002
129989965,1cyclictest26747-21cat07:35:142
129989965,1cyclictest22785-21cat09:30:142
129989965,1cyclictest19527-21ssh10:10:092
129989965,1cyclictest19527-21ssh10:10:082
129989965,0cyclictest61650irq/122-eno111:20:112
129989964,1cyclictest61650irq/122-eno112:30:102
129989964,1cyclictest61650irq/122-eno107:25:122
129989963,2cyclictest5516-21grep09:05:202
129989961,3cyclictest240-21systemd-journal09:00:002
129989961,1cyclictest6010-21diskmemload10:30:122
129909963,3cyclictest0-21swapper/111:35:261
129909963,0cyclictest0-21swapper/107:35:191
129909962,4cyclictest0-21swapper/107:40:221
129909960,6cyclictest0-21swapper/110:39:291
129909960,6cyclictest0-21swapper/109:05:001
129909960,5cyclictest0-21swapper/111:31:341
129909960,5cyclictest0-21swapper/110:20:001
129909960,5cyclictest0-21swapper/110:11:121
129909960,5cyclictest0-21swapper/110:11:121
129909960,5cyclictest0-21swapper/109:15:011
129909960,3cyclictest0-21swapper/109:41:271
129909960,3cyclictest0-21swapper/109:36:161
129909960,1cyclictest0-21swapper/108:05:121
129909960,1cyclictest0-21swapper/107:35:011
129909960,0cyclictest0-21swapper/110:56:501
129909960,0cyclictest0-21swapper/110:48:381
129909960,0cyclictest0-21swapper/108:02:421
129869965,1cyclictest9-21ksoftirqd/009:06:350
129869963,1cyclictest24774-21expr08:40:130
129869963,1cyclictest0-21swapper/007:15:400
129869962,3cyclictest0-21swapper/007:45:420
129869960,6cyclictest0-21swapper/008:47:590
129869960,6cyclictest0-21swapper/008:05:160
129869960,6cyclictest0-21swapper/007:20:150
129869960,6cyclictest0-21swapper/007:10:090
129869960,5cyclictest14955-21telnet08:20:120
129869960,5cyclictest0-21swapper/007:50:160
129869960,0cyclictest21152-21/usr/sbin/munin07:25:130
129869960,0cyclictest0-21swapper/009:40:280
129869960,0cyclictest0-21swapper/009:02:150
129869960,0cyclictest0-21swapper/008:10:110
129869960,0cyclictest0-21swapper/007:55:100
129869960,0cyclictest0-21swapper/007:40:040
130049954,1cyclictest5955-21sshd08:00:143
130049954,1cyclictest35-21ksoftirqd/307:59:253
130049954,1cyclictest11046-21cat08:10:153
130049953,1cyclictest21007-21apt-config07:25:003
130049953,1cyclictest17810-21grep08:25:143
130049952,1cyclictest240-21systemd-journal08:51:273
130049951,1cyclictest32718-21awk07:50:003
130049950,1cyclictest21206-21/usr/sbin/munin08:30:193
129989954,1cyclictest28-21ksoftirqd/208:35:132
129989953,1cyclictest29521-21grep08:50:122
129989953,1cyclictest20061-21cat08:30:122
129989953,1cyclictest17758-21diskstats08:25:122
129909955,0cyclictest0-21swapper/111:20:111
129909953,1cyclictest24300-21chrt12:25:121
129909952,2cyclictest0-21swapper/110:00:181
129909950,5cyclictest0-21swapper/112:30:221
129909950,5cyclictest0-21swapper/111:55:281
129909950,5cyclictest0-21swapper/111:50:261
129909950,5cyclictest0-21swapper/111:15:501
129909950,5cyclictest0-21swapper/110:51:531
129909950,5cyclictest0-21swapper/110:30:021
129909950,5cyclictest0-21swapper/110:26:121
129909950,5cyclictest0-21swapper/110:21:031
129909950,5cyclictest0-21swapper/109:54:011
129909950,5cyclictest0-21swapper/109:45:191
129909950,5cyclictest0-21swapper/109:15:381
129909950,5cyclictest0-21swapper/109:15:371
129909950,5cyclictest0-21swapper/108:35:011
129909950,5cyclictest0-21swapper/108:25:001
129909950,5cyclictest0-21swapper/107:51:111
129909950,4cyclictest0-21swapper/110:43:171
129909950,3cyclictest0-21swapper/112:35:391
129909950,3cyclictest0-21swapper/112:10:421
129909950,3cyclictest0-21swapper/111:10:581
129909950,2cyclictest0-21swapper/112:15:081
129909950,1cyclictest0-21swapper/109:25:161
129909950,0cyclictest0-21swapper/109:55:481
129909950,0cyclictest0-21swapper/108:58:421
129909950,0cyclictest0-21swapper/108:40:111
10535250,0sleep10-21swapper/108:10:131
129909941,2cyclictest0-21swapper/109:04:451
129909941,2cyclictest0-21swapper/107:11:121
129909940,4cyclictest0-21swapper/111:40:311
129909940,4cyclictest0-21swapper/111:05:031
129909940,4cyclictest0-21swapper/108:26:061
129909940,1cyclictest0-21swapper/107:45:191
129909940,1cyclictest0-21swapper/107:25:151
129909940,0cyclictest0-21swapper/108:15:111
129909940,0cyclictest0-21swapper/107:20:181
129909932,1cyclictest0-21swapper/107:55:121
129909932,1cyclictest0-21swapper/107:15:011
129909931,1cyclictest0-21swapper/108:50:271
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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