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2026-03-16 - 19:18
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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 Mon Mar 16, 2026 12:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4672226156,26sleep30-21swapper/307:06:183
5772204148,42sleep00-21swapper/007:07:280
5392199162,24sleep10-21swapper/107:07:141
310992199160,26sleep20-21swapper/207:05:042
86672570,0sleep38669-21gltestperf08:30:133
23342190,1sleep121-21ksoftirqd/110:40:521
881991715,1cyclictest28-21ksoftirqd/210:10:152
881991614,1cyclictest28-21ksoftirqd/209:05:142
881991614,1cyclictest28-21ksoftirqd/208:45:162
881991514,1cyclictest28-21ksoftirqd/211:35:002
881991512,0cyclictest0-21swapper/208:50:012
888991411,2cyclictest16108-21tail08:45:173
881991413,1cyclictest28-21ksoftirqd/210:15:102
888991312,1cyclictest25996-21sed10:30:153
888991311,1cyclictest26869-21ssh09:50:133
888991311,1cyclictest16430-21tr07:40:153
888991310,2cyclictest28068-21memory09:10:153
888991310,2cyclictest24904-21sed07:55:203
888991310,2cyclictest24586-21head11:10:143
888991310,2cyclictest11411-21apt-get07:30:103
881991313,0cyclictest28-21ksoftirqd/209:40:282
881991312,1cyclictest28-21ksoftirqd/211:45:142
881991312,1cyclictest28-21ksoftirqd/211:15:112
881991312,1cyclictest28-21ksoftirqd/210:20:192
881991312,1cyclictest28-21ksoftirqd/209:30:192
881991312,1cyclictest28-21ksoftirqd/208:35:142
881991311,1cyclictest28-21ksoftirqd/211:00:102
881991311,1cyclictest28-21ksoftirqd/209:40:012
45372130,0sleep20-21swapper/210:02:522
88899129,2cyclictest7406-21irqstats07:20:163
88899129,2cyclictest31303-21/usr/sbin/munin12:00:163
88899129,2cyclictest18822-21grep11:45:133
88899122,9cyclictest4223-21ntp_states11:25:183
888991211,1cyclictest0-21swapper/311:05:373
888991210,1cyclictest8292-21apt-get10:50:123
88899120,11cyclictest0-21swapper/311:40:173
881991212,0cyclictest28-21ksoftirqd/212:37:352
881991211,1cyclictest28-21ksoftirqd/211:54:592
881991211,1cyclictest28-21ksoftirqd/211:40:172
881991211,1cyclictest28-21ksoftirqd/210:52:342
881991211,1cyclictest28-21ksoftirqd/210:30:202
881991211,1cyclictest28-21ksoftirqd/210:30:012
881991211,1cyclictest28-21ksoftirqd/209:50:512
881991211,0cyclictest28-21ksoftirqd/211:20:232
881991211,0cyclictest28-21ksoftirqd/211:20:232
881991210,1cyclictest28-21ksoftirqd/212:25:012
881991210,1cyclictest28-21ksoftirqd/211:39:592
881991210,1cyclictest28-21ksoftirqd/208:10:012
87299120,0cyclictest0-21swapper/109:00:101
86799123,4cyclictest20893-21latency_hist10:25:000
88899119,1cyclictest28869-21grep08:05:133
88899119,1cyclictest22392-21apt-get11:50:113
88899119,1cyclictest0-21swapper/308:20:163
88899118,2cyclictest2160-21ssh09:19:463
88899113,1cyclictest31243-21sendmail11:20:003
88899112,2cyclictest6521-21memory12:10:173
88899112,1cyclictest30826-21ssh10:35:433
88899112,1cyclictest18584-21ps10:20:183
888991110,1cyclictest18079-21chrt09:39:133
888991110,1cyclictest0-21swapper/308:50:133
88899111,9cyclictest24138-21ssh10:28:283
88899111,9cyclictest15847-21taskset07:39:453
88899111,8cyclictest3212-21cut10:00:193
88199119,1cyclictest28-21ksoftirqd/212:35:002
88199119,1cyclictest28-21ksoftirqd/212:20:002
88199119,1cyclictest28-21ksoftirqd/209:15:112
88199119,1cyclictest28-21ksoftirqd/207:40:002
88199114,1cyclictest28-21ksoftirqd/212:05:192
881991110,1cyclictest28-21ksoftirqd/212:10:112
881991110,1cyclictest28-21ksoftirqd/211:25:162
881991110,1cyclictest28-21ksoftirqd/210:59:212
881991110,1cyclictest28-21ksoftirqd/210:07:052
881991110,1cyclictest28-21ksoftirqd/209:25:152
881991110,1cyclictest28-21ksoftirqd/208:35:012
881991110,1cyclictest28-21ksoftirqd/207:10:192
86799113,4cyclictest32530-21sed10:39:590
86799111,5cyclictest31307-21date11:20:010
88899109,1cyclictest26789-21diskmemload12:17:063
88899109,1cyclictest26789-21diskmemload10:57:103
88899109,1cyclictest26789-21diskmemload10:05:583
88899109,1cyclictest0-21swapper/311:25:013
88899109,1cyclictest0-21swapper/311:25:003
88899109,1cyclictest0-21swapper/310:40:273
88899109,1cyclictest0-21swapper/310:15:203
88899109,1cyclictest0-21swapper/310:10:153
88899109,1cyclictest0-21swapper/309:22:193
88899109,1cyclictest0-21swapper/307:25:143
88899109,1cyclictest0-21swapper/307:25:133
88899108,1cyclictest35-21ksoftirqd/307:54:593
88899108,1cyclictest26789-21diskmemload12:27:043
88899106,3cyclictest28041-21/usr/sbin/munin11:55:203
88899104,5cyclictest23259-21ssh12:31:373
88899103,6cyclictest693-21runrttasks09:40:233
88899102,1cyclictest2488-21idleruntime12:05:143
888991010,0cyclictest35-21ksoftirqd/309:58:153
88899101,8cyclictest17227-21ntp_states11:00:163
88899101,8cyclictest13556-21ssh09:32:413
88899101,8cyclictest12193-21chrt08:37:423
88899101,1cyclictest9713-21ssh11:33:013
88899101,1cyclictest25451-21ssh09:48:133
88199109,1cyclictest28-21ksoftirqd/209:56:162
88199109,1cyclictest28-21ksoftirqd/209:46:312
88199109,1cyclictest28-21ksoftirqd/208:44:592
88199109,1cyclictest28-21ksoftirqd/207:59:592
88199109,1cyclictest28-21ksoftirqd/207:25:162
88199109,1cyclictest28-21ksoftirqd/207:25:152
88199108,1cyclictest28-21ksoftirqd/209:20:142
88199108,1cyclictest28-21ksoftirqd/209:10:132
88199100,7cyclictest3241-21kworker/2:007:42:392
8889999,0cyclictest35-21ksoftirqd/311:36:323
8889999,0cyclictest35-21ksoftirqd/308:17:333
8889999,0cyclictest35-21ksoftirqd/307:15:273
8889998,1cyclictest26789-21diskmemload10:45:123
8889998,1cyclictest0-21swapper/312:35:113
8889998,1cyclictest0-21swapper/309:25:133
8889996,3cyclictest0-21swapper/307:10:163
8889990,8cyclictest35-21ksoftirqd/312:20:043
8819998,1cyclictest28-21ksoftirqd/212:25:142
8819998,1cyclictest28-21ksoftirqd/211:14:202
8819998,1cyclictest28-21ksoftirqd/211:09:562
8819998,1cyclictest28-21ksoftirqd/210:48:332
8819998,1cyclictest28-21ksoftirqd/210:35:142
8819998,1cyclictest28-21ksoftirqd/208:00:212
8819998,1cyclictest28-21ksoftirqd/207:45:132
8819997,1cyclictest28-21ksoftirqd/212:00:162
8819997,1cyclictest28-21ksoftirqd/210:40:122
8819997,1cyclictest28-21ksoftirqd/209:00:132
8819997,1cyclictest28-21ksoftirqd/207:55:002
8819997,1cyclictest28-21ksoftirqd/207:15:132
8679997,1cyclictest9-21ksoftirqd/008:30:320
8679994,1cyclictest18399-21latency_hist09:40:000
8679990,5cyclictest11008-21ls07:30:000
8679990,5cyclictest11008-21ls07:30:000
8889988,0cyclictest35-21ksoftirqd/309:01:023
8889988,0cyclictest35-21ksoftirqd/308:55:013
8889988,0cyclictest35-21ksoftirqd/308:40:083
8889988,0cyclictest35-21ksoftirqd/308:25:063
8889988,0cyclictest35-21ksoftirqd/307:45:033
8889980,8cyclictest35-21ksoftirqd/309:05:013
8889980,8cyclictest35-21ksoftirqd/308:10:003
8889980,8cyclictest35-21ksoftirqd/308:00:073
8819987,1cyclictest28-21ksoftirqd/212:00:002
8819987,1cyclictest28-21ksoftirqd/208:20:002
8819987,1cyclictest28-21ksoftirqd/208:15:012
8819986,1cyclictest28-21ksoftirqd/209:00:002
8819986,1cyclictest28-21ksoftirqd/208:25:122
8819986,1cyclictest28-21ksoftirqd/207:35:012
8819986,1cyclictest28-21ksoftirqd/207:20:112
8729981,1cyclictest0-21swapper/107:56:571
8729980,2cyclictest0-21swapper/109:10:101
8679986,1cyclictest9-21ksoftirqd/008:15:010
8679986,1cyclictest707-21snmpd12:27:160
8679986,1cyclictest707-21snmpd11:37:030
8679986,1cyclictest707-21snmpd10:29:410
8679986,1cyclictest707-21snmpd09:23:130
8679986,1cyclictest707-21snmpd08:59:210
8679986,1cyclictest707-21snmpd08:04:190
8679986,1cyclictest707-21snmpd07:24:110
8679986,1cyclictest28617-21perf10:35:010
8679983,5cyclictest3572-21latency_hist07:15:010
8679981,1cyclictest0-21swapper/008:23:310
8679980,7cyclictest2563-21ssh10:41:270
8679980,7cyclictest23743-21ntp_states09:45:180
8679980,7cyclictest0-21swapper/008:25:120
8679980,4cyclictest0-21swapper/011:45:160
8679980,1cyclictest32068-21grep09:55:200
8819972,3cyclictest3200-21apt-get08:20:112
8729971,6cyclictest0-21swapper/107:11:291
8729971,5cyclictest0-21swapper/112:13:271
8729970,6cyclictest0-21swapper/111:19:551
8729970,6cyclictest0-21swapper/108:43:201
8729970,4cyclictest0-21swapper/109:49:341
8729970,1cyclictest0-21swapper/110:05:111
8729970,1cyclictest0-21swapper/108:02:551
8679977,0cyclictest9-21ksoftirqd/010:11:460
8679976,1cyclictest6993-21ssh10:05:190
8679976,1cyclictest6124-21ssh11:28:460
8679976,1cyclictest11223-21sh10:53:210
8679976,1cyclictest0-21swapper/012:09:220
8679975,1cyclictest707-21snmpd12:20:350
8679975,1cyclictest707-21snmpd10:17:280
8679975,1cyclictest707-21snmpd08:50:020
8679975,1cyclictest707-21snmpd08:49:560
8679975,1cyclictest707-21snmpd07:55:040
8679975,1cyclictest707-21snmpd07:36:490
8679975,1cyclictest32323-21ssh12:01:190
8679975,1cyclictest27936-21ssh09:10:140
8679975,1cyclictest228832sleep012:30:360
8679975,1cyclictest0-21swapper/011:10:130
8679973,3cyclictest707-21snmpd11:40:510
8679970,7cyclictest18918-21ssh11:03:130
8679970,6cyclictest3499-21awk10:00:210
8679970,6cyclictest20124-21grep11:05:130
8679970,6cyclictest12525-21ssh09:30:200
8679970,6cyclictest0-21swapper/011:30:110
8679970,6cyclictest0-21swapper/010:55:130
8679970,6cyclictest0-21swapper/007:50:210
8679970,1cyclictest8968-21sh09:26:330
8679970,1cyclictest8832-21ssh12:14:240
8679970,1cyclictest6654-21ssh10:47:000
8679970,1cyclictest32713-21ssh09:15:300
8679970,1cyclictest28698-21ssh09:51:340
8679970,1cyclictest28694-21ssh11:57:000
8679970,1cyclictest23380-21wc11:50:160
8679970,1cyclictest21877-21ssh09:44:000
8679970,1cyclictest0-21swapper/012:15:170
8679970,1cyclictest0-21swapper/008:35:190
13150270,1sleep10-21swapper/109:31:441
8729963,0cyclictest0-21swapper/111:40:201
8729963,0cyclictest0-21swapper/110:50:191
8729962,2cyclictest0-21swapper/109:15:091
8729961,5cyclictest0-21swapper/110:55:301
8729960,6cyclictest0-21swapper/112:26:071
8729960,6cyclictest0-21swapper/112:00:191
8729960,6cyclictest0-21swapper/107:30:211
8729960,6cyclictest0-21swapper/107:21:271
8729960,6cyclictest0-21swapper/107:16:051
8729960,5cyclictest0-21swapper/108:35:071
8729960,4cyclictest0-21swapper/110:35:101
8729960,2cyclictest0-21swapper/110:31:041
8729960,1cyclictest0-21swapper/111:34:421
8729960,1cyclictest0-21swapper/111:21:341
8729960,1cyclictest0-21swapper/111:21:341
8729960,1cyclictest0-21swapper/109:06:481
8729960,1cyclictest0-21swapper/108:46:241
8729960,0cyclictest0-21swapper/111:29:281
8679965,1cyclictest29492-21ntpq08:05:160
8679965,1cyclictest19600-1kworker/u9:012:36:520
8679964,1cyclictest12904-21tr08:40:140
8679960,6cyclictest0-21swapper/007:33:530
8679960,2cyclictest0-21swapper/009:05:010
8679960,1cyclictest26789-21diskmemload11:20:190
8679960,1cyclictest26789-21diskmemload11:20:190
8679960,0cyclictest0-21swapper/009:05:000
8679960,0cyclictest0-21swapper/008:16:540
8679960,0cyclictest0-21swapper/007:45:150
8679960,0cyclictest0-21swapper/007:15:110
8729955,0cyclictest0-21swapper/112:24:141
8729955,0cyclictest0-21swapper/111:01:301
8729955,0cyclictest0-21swapper/109:29:451
8729955,0cyclictest0-21swapper/108:57:001
8729955,0cyclictest0-21swapper/107:37:221
8729953,1cyclictest20698-21chrt11:46:201
8729951,2cyclictest0-21swapper/109:55:131
8729950,5cyclictest0-21swapper/111:51:081
8729950,5cyclictest0-21swapper/109:41:361
8729950,5cyclictest0-21swapper/108:53:221
8729950,5cyclictest0-21swapper/108:30:581
8729950,5cyclictest0-21swapper/107:45:191
8729950,4cyclictest0-21swapper/112:35:141
8729950,4cyclictest0-21swapper/111:56:241
8729950,4cyclictest0-21swapper/109:35:191
8729950,3cyclictest0-21swapper/112:17:571
8729950,3cyclictest0-21swapper/111:05:111
8729950,3cyclictest0-21swapper/110:25:161
8729950,1cyclictest0-21swapper/111:10:111
8729950,1cyclictest0-21swapper/110:10:121
8729950,0cyclictest0-21swapper/110:20:401
8729950,0cyclictest0-21swapper/110:17:091
8729950,0cyclictest0-21swapper/107:40:051
8679950,4cyclictest16136-21/usr/sbin/munin07:40:140
8729942,1cyclictest2611-21chrt10:00:141
8729941,2cyclictest0-21swapper/108:25:131
8729940,4cyclictest0-21swapper/109:20:191
8729940,3cyclictest0-21swapper/112:30:481
8729940,3cyclictest0-21swapper/109:51:551
8729940,2cyclictest0-21swapper/112:05:101
8729940,2cyclictest0-21swapper/110:45:261
8729940,2cyclictest0-21swapper/107:25:121
8729940,2cyclictest0-21swapper/107:25:111
8729940,1cyclictest0-21swapper/111:35:101
8729940,1cyclictest0-21swapper/108:20:121
8729940,1cyclictest0-21swapper/108:15:101
8729940,1cyclictest0-21swapper/108:05:101
8729931,1cyclictest0-21swapper/107:50:101
8729930,3cyclictest0-21swapper/108:10:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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