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2026-08-20 - 00:05
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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 Wed Aug 19, 2026 12:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
192092229157,25sleep30-21swapper/307:08:593
191242219153,22sleep20-21swapper/207:07:532
192062202149,21sleep00-21swapper/007:08:560
191922199162,24sleep10-21swapper/107:08:451
49002720,1sleep24895-21fschecks_count07:45:152
19388991110,1cyclictest28-21ksoftirqd/211:55:002
19388991110,1cyclictest24251-21ssh10:59:152
309162100,0sleep20-21swapper/211:08:082
1939899101,5cyclictest16156-21apt-get08:10:113
1938899109,1cyclictest28-21ksoftirqd/212:10:202
1938899109,1cyclictest28-21ksoftirqd/210:40:002
1938899109,1cyclictest28-21ksoftirqd/210:25:192
1938899109,1cyclictest28-21ksoftirqd/209:20:002
1938899108,1cyclictest28-21ksoftirqd/210:50:122
1938899108,1cyclictest28-21ksoftirqd/209:50:002
1938899103,3cyclictest61650irq/122-eno112:15:132
1938899100,9cyclictest0-21swapper/211:49:352
1938899100,0cyclictest0-21swapper/211:27:012
1937999100,10cyclictest0-21swapper/110:00:171
1937199102,4cyclictest2641-21cut08:50:000
1937199101,4cyclictest23066-21cut08:25:000
152102100,0sleep00-21swapper/012:17:470
193989997,1cyclictest12795-21mailstats08:00:203
193989991,6cyclictest158002sleep311:32:203
193889999,0cyclictest28-21ksoftirqd/208:25:132
193889998,1cyclictest28-21ksoftirqd/210:40:142
193889998,1cyclictest28-21ksoftirqd/209:35:142
193889998,1cyclictest28-21ksoftirqd/209:30:132
193889998,1cyclictest28-21ksoftirqd/207:55:002
193889997,1cyclictest28-21ksoftirqd/211:10:132
193889997,1cyclictest28-21ksoftirqd/210:10:162
193889997,1cyclictest28-21ksoftirqd/210:09:402
193889997,1cyclictest28-21ksoftirqd/207:10:142
193889991,7cyclictest32064-21apt-get07:35:122
193889990,8cyclictest0-21swapper/208:40:172
193719993,5cyclictest9724-21perf09:05:010
193719992,1cyclictest240-21systemd-journal12:14:550
193719990,8cyclictest0-21swapper/007:35:290
4150280,2sleep30-21swapper/312:00:523
193989988,0cyclictest35-21ksoftirqd/310:02:063
193989986,1cyclictest24140-21cat08:25:163
193989986,1cyclictest11301-21snmpd12:35:053
193989986,1cyclictest11301-21snmpd10:19:223
193989981,6cyclictest35-21ksoftirqd/310:25:193
193989980,5cyclictest18665-21/usr/sbin/munin10:05:193
193889988,0cyclictest28-21ksoftirqd/209:40:152
193889988,0cyclictest28-21ksoftirqd/209:25:202
193889988,0cyclictest28-21ksoftirqd/209:20:212
193889986,1cyclictest61650irq/122-eno112:38:062
193889986,1cyclictest61650irq/122-eno111:01:092
193889986,1cyclictest32318-21ntpq11:55:192
193889986,1cyclictest28-21ksoftirqd/212:00:232
193889986,1cyclictest28-21ksoftirqd/210:45:222
193889980,4cyclictest3715-21hwlatdetect11:15:162
193889980,2cyclictest0-21swapper/207:30:112
193889980,0cyclictest0-21swapper/212:08:292
193799983,5cyclictest0-21swapper/107:46:351
193799980,8cyclictest0-21swapper/111:30:241
193719987,1cyclictest9-21ksoftirqd/011:39:170
193719987,1cyclictest7245-21ssh10:35:100
193719987,1cyclictest3527-21ssh09:42:230
193719987,1cyclictest29836-21ssh11:51:430
193719987,1cyclictest27497-21ssh11:03:210
193719987,1cyclictest16428-21ssh11:34:230
193719987,1cyclictest1473-21ssh11:11:240
193719987,1cyclictest14283-21ssh10:45:130
193719986,1cyclictest23508-21cat07:15:150
193719986,1cyclictest11301-21snmpd09:15:180
193719986,1cyclictest11301-21snmpd07:40:590
193719985,2cyclictest21897-21cron10:10:000
193719981,6cyclictest32394-21taskset08:41:470
193719981,5cyclictest240-21systemd-journal12:40:010
193719981,1cyclictest6401-21apt-get11:20:100
193719981,1cyclictest2399-21ssh10:26:310
193719980,4cyclictest14048-21cut10:45:000
193719980,1cyclictest22698-21ssh12:29:190
23356270,1sleep223334-21gltestperf07:15:152
193989976,1cyclictest35-21ksoftirqd/312:27:423
193989976,1cyclictest11301-21snmpd10:45:473
193989975,1cyclictest35-21ksoftirqd/308:40:003
193989975,1cyclictest11301-21snmpd12:30:283
193989975,1cyclictest11301-21snmpd09:46:313
193989975,1cyclictest11301-21snmpd07:52:293
193989975,1cyclictest11301-21snmpd07:12:493
193989974,1cyclictest240-21systemd-journal11:59:553
193989973,2cyclictest240-21systemd-journal08:44:553
193989973,1cyclictest12038-21diskmemload09:25:033
193989971,3cyclictest12038-21diskmemload10:51:573
193989971,3cyclictest12038-21diskmemload09:40:033
193989970,6cyclictest4857-21ssh11:15:583
193989970,5cyclictest0-21swapper/310:34:503
193989970,4cyclictest0-21swapper/312:16:313
193989970,3cyclictest0-21swapper/311:14:133
193989970,3cyclictest0-21swapper/309:32:123
193989970,2cyclictest0-21swapper/311:41:493
193989970,2cyclictest0-21swapper/310:35:113
193989970,1cyclictest0-21swapper/310:10:123
193989970,1cyclictest0-21swapper/308:05:123
193889977,0cyclictest28-21ksoftirqd/209:55:142
193889976,1cyclictest61650irq/122-eno111:21:302
193889976,1cyclictest61650irq/122-eno110:16:592
193889976,1cyclictest61650irq/122-eno109:50:202
193889976,1cyclictest61650irq/122-eno107:20:142
193889976,1cyclictest28-21ksoftirqd/208:30:142
193889976,1cyclictest28-21ksoftirqd/207:25:132
193889975,1cyclictest61650irq/122-eno112:20:212
193889975,1cyclictest61650irq/122-eno111:40:222
193889975,1cyclictest61650irq/122-eno111:30:112
193889975,1cyclictest11301-21snmpd08:11:452
193889973,1cyclictest0-21swapper/208:55:202
193889972,2cyclictest9909-21apt-get09:05:122
193889970,0cyclictest0-21swapper/207:55:122
193799971,6cyclictest0-21swapper/111:24:481
193799970,6cyclictest0-21swapper/111:35:031
193799970,5cyclictest0-21swapper/107:20:121
193799970,4cyclictest0-21swapper/112:10:171
193799970,3cyclictest0-21swapper/110:27:011
193799970,1cyclictest0-21swapper/110:44:231
193719976,1cyclictest9554-1kworker/u9:211:26:320
193719976,1cyclictest8692-21ssh12:09:160
193719976,1cyclictest23990-21ssh09:25:180
193719976,1cyclictest22272-21aten_r1power_fr10:10:130
193719976,1cyclictest18869-21ssh12:23:150
193719975,1cyclictest11301-21snmpd08:15:480
193719974,1cyclictest240-21systemd-journal07:35:000
193719973,2cyclictest31965-1kworker/u9:109:36:090
193719972,4cyclictest25665-21/usr/sbin/munin10:15:150
193719972,1cyclictest2170-21ssh12:00:010
193719971,5cyclictest26869-21ssh09:30:140
193719970,7cyclictest30655-21ssh11:07:150
193719970,6cyclictest4741-21ssh11:15:360
193719970,6cyclictest31132-21ssh11:55:130
193719970,6cyclictest29625-21expr10:20:130
193719970,6cyclictest27733-21/usr/sbin/munin08:35:000
193719970,6cyclictest16885-1kworker/u9:211:45:060
193719970,6cyclictest15116-21ssh10:00:020
193719970,6cyclictest12264-21fschecks_time09:55:170
193719970,6cyclictest0-21swapper/008:25:220
193719970,2cyclictest0-21swapper/010:31:230
193719970,1cyclictest21155-21ssh09:20:290
193719970,1cyclictest20601-21ssh11:40:070
193719970,1cyclictest11201-21/usr/sbin/munin08:00:000
193719970,1cyclictest0-21swapper/012:30:160
193719970,1cyclictest0-21swapper/010:55:030
193719970,1cyclictest0-21swapper/010:50:150
193989966,0cyclictest35-21ksoftirqd/307:20:193
193989965,1cyclictest9896-21ssh11:25:093
193989965,1cyclictest8265-21ssh11:20:373
193989965,1cyclictest31482-21sshd07:30:443
193989965,1cyclictest30235-21ssh11:05:523
193989965,1cyclictest11840-21ssh12:13:093
193989965,1cyclictest11301-21snmpd09:10:173
193989965,1cyclictest10368-21ssh09:51:513
193989964,1cyclictest35-21ksoftirqd/307:46:513
193989964,1cyclictest11301-21snmpd11:50:163
193989964,1cyclictest11301-21snmpd09:21:563
193989963,1cyclictest240-21systemd-journal08:50:003
193989962,3cyclictest12038-21diskmemload09:39:263
193989962,3cyclictest11563-21unixbench_multi09:05:213
193989961,4cyclictest7549-21/usr/sbin/munin09:00:213
193989961,4cyclictest12626-21ssh10:40:373
193989960,5cyclictest0-21swapper/307:59:053
193989960,4cyclictest22622-21apt-get07:15:113
193989960,4cyclictest0-21swapper/312:22:173
193989960,4cyclictest0-21swapper/312:09:233
193989960,3cyclictest25316-21ntpq11:45:173
193989960,2cyclictest0-21swapper/310:59:463
193989960,2cyclictest0-21swapper/310:20:323
193989960,2cyclictest0-21swapper/309:15:333
193889966,0cyclictest61650irq/122-eno112:31:202
193889966,0cyclictest61650irq/122-eno109:10:152
193889966,0cyclictest61650irq/122-eno108:46:592
193889965,1cyclictest61650irq/122-eno112:25:112
193889965,1cyclictest61650irq/122-eno111:35:122
193889965,1cyclictest61650irq/122-eno107:40:192
193889965,1cyclictest3861-21ssh10:30:122
193889965,1cyclictest29149-21ssh10:20:062
193889965,1cyclictest28-21ksoftirqd/208:35:002
193889963,2cyclictest13805-21apt-get08:05:112
193889962,3cyclictest15166-21apt-get10:00:122
193889960,4cyclictest19682-21ntp_states08:15:192
193889960,2cyclictest0-21swapper/208:00:132
193799961,5cyclictest0-21swapper/107:10:521
193799961,2cyclictest0-21swapper/109:25:281
193799960,6cyclictest0-21swapper/112:21:181
193799960,6cyclictest0-21swapper/111:47:431
193799960,6cyclictest0-21swapper/111:28:001
193799960,6cyclictest0-21swapper/110:50:201
193799960,6cyclictest0-21swapper/110:12:191
193799960,6cyclictest0-21swapper/109:33:221
193799960,6cyclictest0-21swapper/109:22:471
193799960,6cyclictest0-21swapper/108:54:461
193799960,6cyclictest0-21swapper/108:45:281
193799960,6cyclictest0-21swapper/108:41:251
193799960,6cyclictest0-21swapper/108:20:541
193799960,6cyclictest0-21swapper/108:01:481
193799960,3cyclictest0-21swapper/109:35:141
193799960,2cyclictest0-21swapper/109:00:111
193799960,1cyclictest0-21swapper/107:30:151
193719965,1cyclictest5174-21/usr/sbin/munin08:55:220
193719960,6cyclictest0-21swapper/009:05:470
193719960,5cyclictest4399-21telnet07:45:120
193719960,5cyclictest0-21swapper/008:35:140
193719960,5cyclictest0-21swapper/007:10:160
193719960,2cyclictest0-21swapper/008:05:120
193719960,1cyclictest9338-21ssh09:50:170
193719960,1cyclictest0-21swapper/009:45:070
193719960,0cyclictest0-21swapper/009:10:110
193719960,0cyclictest0-21swapper/008:10:210
193719960,0cyclictest0-21swapper/007:50:160
193719960,0cyclictest0-21swapper/007:25:200
193719960,0cyclictest0-21swapper/007:20:150
10541260,3sleep10-21swapper/109:52:251
193989955,0cyclictest0-21swapper/309:55:113
193989954,1cyclictest35-21ksoftirqd/307:27:593
193989954,1cyclictest11301-21snmpd08:51:203
193989951,1cyclictest5174-21/usr/sbin/munin08:55:123
193989950,4cyclictest902-21proc_pri07:35:193
193989950,3cyclictest17050-21aten_r1power_vo11:35:133
193989950,3cyclictest0-21swapper/311:00:073
193989950,0cyclictest0-21swapper/308:31:333
193889954,1cyclictest28-21ksoftirqd/209:00:132
193889950,4cyclictest2825-21apt-get08:50:122
193889950,1cyclictest21046-21cut08:20:122
193799955,0cyclictest0-21swapper/112:16:141
193799954,1cyclictest0-21swapper/108:25:451
193799953,1cyclictest111rcu_preempt09:40:301
193799953,1cyclictest0-21swapper/107:25:181
193799951,3cyclictest0-21swapper/110:30:521
193799951,1cyclictest0-21swapper/111:41:151
193799950,5cyclictest0-21swapper/112:36:201
193799950,5cyclictest0-21swapper/111:10:301
193799950,5cyclictest0-21swapper/111:03:251
193799950,5cyclictest0-21swapper/109:10:391
193799950,5cyclictest0-21swapper/108:59:471
193799950,5cyclictest0-21swapper/108:36:221
193799950,5cyclictest0-21swapper/108:15:021
193799950,4cyclictest0-21swapper/110:15:181
193799950,4cyclictest0-21swapper/107:40:161
193799950,3cyclictest0-21swapper/110:06:451
193799950,2cyclictest46632sleep111:15:241
193799950,1cyclictest0-21swapper/112:25:281
193799950,0cyclictest0-21swapper/112:01:401
193799950,0cyclictest0-21swapper/110:47:221
193719950,1cyclictest0-21swapper/008:50:460
193719950,0cyclictest0-21swapper/008:02:380
193989944,0cyclictest21732-21kworker/3:108:15:023
193989941,1cyclictest2015-21apt-get07:40:113
193989940,3cyclictest35-21ksoftirqd/308:20:143
193799944,0cyclictest0-21swapper/109:55:221
193799944,0cyclictest0-21swapper/109:15:481
193799942,1cyclictest0-21swapper/108:15:001
193799940,4cyclictest0-21swapper/109:10:001
193799940,4cyclictest0-21swapper/108:32:571
193799940,4cyclictest0-21swapper/107:55:171
193799940,4cyclictest0-21swapper/107:19:021
193799940,3cyclictest0-21swapper/111:55:131
193799940,3cyclictest0-21swapper/110:55:481
193799940,3cyclictest0-21swapper/109:45:151
193799940,2cyclictest0-21swapper/112:30:471
193799940,2cyclictest0-21swapper/112:05:131
193799940,1cyclictest0-21swapper/111:50:291
193799940,1cyclictest0-21swapper/111:05:151
193799940,1cyclictest0-21swapper/110:35:461
193799940,1cyclictest0-21swapper/110:20:081
193799940,1cyclictest0-21swapper/107:50:201
193799940,0cyclictest0-21swapper/108:05:201
193799932,1cyclictest14142sleep107:35:481
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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