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2026-03-27 - 00:13
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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 rackdslot1.osadl.org (updated Thu Mar 26, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
28615996728,8cyclictest41-21ksoftirqd/308:37:433
28615996629,4cyclictest41-21ksoftirqd/312:25:013
28615996629,4cyclictest41-21ksoftirqd/312:25:013
28615996531,10cyclictest41-21ksoftirqd/307:25:013
28615996430,4cyclictest41-21ksoftirqd/311:45:133
28615996429,4cyclictest41-21ksoftirqd/307:50:003
28615996424,10cyclictest41-21ksoftirqd/307:38:353
134491640,5ptp4l0-21swapper/109:30:151
28615996331,7cyclictest41-21ksoftirqd/311:40:153
28615996325,3cyclictest41-21ksoftirqd/310:15:213
28615996324,8cyclictest41-21ksoftirqd/308:11:473
28615996233,3cyclictest41-21ksoftirqd/309:00:173
28615996227,7cyclictest41-21ksoftirqd/308:21:103
28615996226,7cyclictest41-21ksoftirqd/310:20:233
28615996225,10cyclictest41-21ksoftirqd/309:30:203
28615996132,8cyclictest41-21ksoftirqd/309:10:003
28615996125,8cyclictest41-21ksoftirqd/311:30:153
28615996124,7cyclictest41-21ksoftirqd/311:11:243
28615996031,7cyclictest41-21ksoftirqd/308:40:223
28615996028,8cyclictest41-21ksoftirqd/307:30:193
28615996027,3cyclictest41-21ksoftirqd/309:45:003
28615996024,8cyclictest41-21ksoftirqd/309:24:333
28615996024,7cyclictest41-21ksoftirqd/312:13:383
28615996024,7cyclictest41-21ksoftirqd/310:01:073
28615996023,7cyclictest41-21ksoftirqd/310:55:003
119782600,4sleep20-21swapper/210:00:212
28615995929,7cyclictest41-21ksoftirqd/312:05:163
28615995929,3cyclictest41-21ksoftirqd/311:50:173
28615995925,7cyclictest41-21ksoftirqd/311:00:583
28615995832,4cyclictest41-21ksoftirqd/310:35:003
28615995825,3cyclictest41-21ksoftirqd/311:27:093
28615995821,6cyclictest41-21ksoftirqd/310:05:183
28612995811,24cyclictest1317-21runrttasks12:24:510
28612995811,24cyclictest1317-21runrttasks12:24:510
134491580,4ptp4l0-21swapper/209:27:412
28615995731,6cyclictest41-21ksoftirqd/312:15:253
28615995726,3cyclictest41-21ksoftirqd/311:05:133
134491570,5ptp4l0-21swapper/307:05:043
134491570,5ptp4l0-21swapper/207:08:442
134491570,4ptp4l0-21swapper/311:25:003
2861599562,28cyclictest0-21swapper/309:17:323
2861599562,22cyclictest0-21swapper/307:42:573
28615995620,8cyclictest41-21ksoftirqd/310:25:203
2861499561,53cyclictest0-21swapper/212:00:092
134491560,3ptp4l0-21swapper/311:55:343
134491560,3ptp4l0-21swapper/207:16:332
28615995532,7cyclictest41-21ksoftirqd/311:15:153
2861599552,22cyclictest0-21swapper/309:55:393
2861599546,3cyclictest41-21ksoftirqd/311:00:003
28615995423,7cyclictest41-21ksoftirqd/307:10:193
2861599542,24cyclictest0-21swapper/309:37:303
28615995420,3cyclictest41-21ksoftirqd/312:30:273
134491540,5ptp4l2861499cyclictest07:47:532
2861599532,6cyclictest0-21swapper/308:45:163
28615995321,6cyclictest41-21ksoftirqd/309:25:253
28615995320,7cyclictest41-21ksoftirqd/308:09:433
134491530,4ptp4l0-21swapper/109:51:361
2861599527,3cyclictest15584-21unixbench_multi12:25:293
2861599522,6cyclictest0-21swapper/312:35:283
28615995224,6cyclictest41-21ksoftirqd/308:30:183
28615995221,7cyclictest41-21ksoftirqd/309:10:003
151782520,3sleep00-21swapper/011:15:290
134491520,4ptp4l0-21swapper/210:25:282
134491520,3ptp4l0-21swapper/110:01:481
2861599514,6cyclictest41-21ksoftirqd/310:45:193
2861599512,25cyclictest0-21swapper/311:38:093
2861599511,7cyclictest41-21ksoftirqd/309:00:003
134491510,3ptp4l0-21swapper/112:10:141
2861599506,3cyclictest41-21ksoftirqd/308:25:183
2861599502,7cyclictest0-21swapper/310:10:103
2861599502,7cyclictest0-21swapper/309:45:243
28615995021,7cyclictest41-21ksoftirqd/312:00:273
28615995017,3cyclictest41-21ksoftirqd/308:15:233
28614995012,36cyclictest4319-21kworker/2:112:05:282
134491500,4ptp4l0-21swapper/309:53:393
134491500,4ptp4l0-21swapper/307:51:093
134491500,4ptp4l0-21swapper/110:44:571
134491500,3ptp4l0-21swapper/107:22:331
134491500,2ptp4l0-21swapper/211:08:032
2861599496,3cyclictest41-21ksoftirqd/308:50:273
2861599493,4cyclictest41-21ksoftirqd/307:55:273
134491490,9ptp4l0-21swapper/108:32:571
134491490,4ptp4l0-21swapper/209:59:102
134491490,4ptp4l0-21swapper/112:02:241
134491490,4ptp4l0-21swapper/109:42:111
134491490,4ptp4l0-21swapper/109:26:011
134491490,3ptp4l0-21swapper/111:39:101
134491490,3ptp4l0-21swapper/108:04:501
2861599482,2cyclictest41-21ksoftirqd/310:40:273
134491480,4ptp4l0-21swapper/212:27:412
134491480,4ptp4l0-21swapper/107:55:331
134491480,3ptp4l0-21swapper/208:29:322
134491480,3ptp4l0-21swapper/112:28:571
134491480,3ptp4l0-21swapper/111:22:421
28615994734,7cyclictest41-21ksoftirqd/310:39:593
2861599473,3cyclictest41-21ksoftirqd/308:00:133
134491470,4ptp4l0-21swapper/209:49:562
134491470,3ptp4l0-21swapper/211:46:422
134491470,14ptp4l0-21swapper/209:08:552
28615994638,2cyclictest41-21ksoftirqd/307:25:143
28615994629,8cyclictest41-21ksoftirqd/307:15:203
134491460,9ptp4l0-21swapper/207:38:592
134491460,4ptp4l0-21swapper/211:03:132
134491460,4ptp4l0-21swapper/210:38:262
134491460,3ptp4l0-21swapper/211:55:052
134491460,3ptp4l0-21swapper/207:40:092
134491460,3ptp4l0-21swapper/107:45:231
134491460,3ptp4l0-21swapper/107:33:351
134491460,12ptp4l0-21swapper/007:30:000
2861499451,41cyclictest22837-21grep09:15:202
134491450,4ptp4l5557-21apt-get07:30:112
134491450,4ptp4l121rcu_preempt07:25:151
134491450,4ptp4l0-21swapper/209:38:552
134491450,4ptp4l0-21swapper/108:43:281
28614994415,28cyclictest0-21swapper/210:34:202
134491440,5ptp4l0-21swapper/208:40:112
134491440,4ptp4l6661-21ls08:40:190
134491440,4ptp4l28787-21ls10:35:270
134491440,4ptp4l16272-21apt-get12:30:122
134491440,4ptp4l15782-21ls07:50:222
134491440,4ptp4l12612-21apt-get08:55:132
134491440,3ptp4l0-21swapper/112:23:411
134491440,3ptp4l0-21swapper/112:23:401
134491440,11ptp4l0-21swapper/209:01:592
134491430,6ptp4l0-21swapper/208:50:222
134491430,4ptp4l3264-21apt-get07:25:112
134491430,4ptp4l22248-21apt-get09:15:131
134491430,4ptp4l18568-21apt-get12:35:121
134491430,3ptp4l0-21swapper/210:15:292
134491430,10ptp4l0-21swapper/210:09:242
134491420,9ptp4l0-21swapper/212:11:032
134491420,6ptp4l0-21swapper/109:45:231
134491420,5ptp4l33-21ksoftirqd/207:55:162
134491420,5ptp4l17932-21/usr/sbin/munin07:55:170
134491420,5ptp4l0-21swapper/110:23:581
134491420,4ptp4l25092-21ntp_states08:10:221
134491420,4ptp4l21065-21memory10:20:222
134491420,4ptp4l19375-21apt-get08:00:110
134491420,3ptp4l1408-21iostat_ios08:30:180
134491410,7ptp4l0-21swapper/210:55:232
134491410,5ptp4l0-21swapper/111:45:201
134491410,5ptp4l0-21swapper/108:55:221
134491410,5ptp4l0-21swapper/108:50:281
134491410,5ptp4l0-21swapper/010:33:220
134491410,5ptp4l0-21swapper/010:20:290
134491410,5ptp4l0-21swapper/009:25:240
134491410,4ptp4l31795-21irqstats08:25:191
134491410,4ptp4l30356-21df11:50:142
134491410,4ptp4l2627-21iostat_ios10:50:181
134491410,4ptp4l0-21swapper/110:45:161
134491410,4ptp4l0-21swapper/012:15:210
134491410,4ptp4l0-21swapper/010:25:590
134491410,3ptp4l26485-21ls11:40:192
134491410,3ptp4l21453-21ls09:10:272
134491410,3ptp4l19121-21memory11:25:220
134491410,3ptp4l11258-21apt-get11:10:122
134491400,5ptp4l0-21swapper/210:45:132
134491400,5ptp4l0-21swapper/012:35:120
134491400,5ptp4l0-21swapper/010:50:170
134491400,5ptp4l0-21swapper/009:55:180
134491400,5ptp4l0-21swapper/009:45:270
134491400,5ptp4l0-21swapper/009:40:270
134491400,5ptp4l0-21swapper/008:35:290
134491400,5ptp4l0-21swapper/007:10:260
134491400,4ptp4l3420-21meminfo12:00:200
134491400,4ptp4l28902-21diskstats08:20:160
134491400,4ptp4l16480-21df12:30:140
134491400,4ptp4l15359-21hddtemp_smartct09:00:160
134491400,4ptp4l10481-21ntp_states12:15:232
134491400,4ptp4l0-21swapper/208:46:572
134491400,4ptp4l0-21swapper/208:30:162
134491400,4ptp4l0-21swapper/208:14:002
134491400,4ptp4l0-21swapper/207:12:442
134491400,4ptp4l0-21swapper/011:46:340
134491400,4ptp4l0-21swapper/011:20:430
134491400,4ptp4l0-21swapper/010:40:230
134491400,4ptp4l0-21swapper/010:16:170
134491400,4ptp4l0-21swapper/010:05:500
134491400,4ptp4l0-21swapper/010:03:340
134491400,4ptp4l0-21swapper/009:35:170
134491400,4ptp4l0-21swapper/009:34:320
134491400,4ptp4l0-21swapper/008:59:260
134491400,4ptp4l0-21swapper/008:28:450
134491400,3ptp4l4239-21strings08:35:222
134491400,3ptp4l24922-21meminfo08:10:190
134491400,3ptp4l19283-21ntp_states11:25:231
134491400,3ptp4l18172-21apt-get11:25:122
134491400,3ptp4l0-21swapper/212:35:562
134491400,3ptp4l0-21swapper/112:31:271
134491390,5ptp4l0-21swapper/111:09:381
134491390,5ptp4l0-21swapper/007:45:480
134491390,4ptp4l9-21ksoftirqd/009:10:120
134491390,4ptp4l25088-21sshd09:20:151
134491390,4ptp4l17743-21df_inode09:05:141
134491390,4ptp4l14188-21sh12:25:140
134491390,4ptp4l0-21swapper/212:23:582
134491390,4ptp4l0-21swapper/212:23:582
134491390,4ptp4l0-21swapper/211:20:122
134491390,4ptp4l0-21swapper/210:53:112
134491390,4ptp4l0-21swapper/210:10:132
134491390,4ptp4l0-21swapper/209:33:092
134491390,4ptp4l0-21swapper/209:21:172
134491390,4ptp4l0-21swapper/208:22:172
134491390,4ptp4l0-21swapper/208:18:422
134491390,4ptp4l0-21swapper/208:00:182
134491390,4ptp4l0-21swapper/110:38:211
134491390,4ptp4l0-21swapper/110:30:231
134491390,4ptp4l0-21swapper/109:55:211
134491390,4ptp4l0-21swapper/109:11:081
134491390,4ptp4l0-21swapper/109:00:131
134491390,4ptp4l0-21swapper/108:39:591
134491390,4ptp4l0-21swapper/107:35:051
134491390,4ptp4l0-21swapper/107:10:131
134491390,4ptp4l0-21swapper/012:10:210
134491390,4ptp4l0-21swapper/012:08:040
134491390,4ptp4l0-21swapper/011:55:110
134491390,4ptp4l0-21swapper/011:40:210
134491390,4ptp4l0-21swapper/011:37:020
134491390,4ptp4l0-21swapper/011:10:530
134491390,4ptp4l0-21swapper/011:08:390
134491390,4ptp4l0-21swapper/011:00:330
134491390,4ptp4l0-21swapper/010:46:210
134491390,4ptp4l0-21swapper/010:10:110
134491390,4ptp4l0-21swapper/009:51:570
134491390,4ptp4l0-21swapper/009:20:220
134491390,4ptp4l0-21swapper/009:05:280
134491390,4ptp4l0-21swapper/008:53:090
134491390,4ptp4l0-21swapper/008:45:350
134491390,4ptp4l0-21swapper/008:16:380
134491390,4ptp4l0-21swapper/007:40:230
134491390,4ptp4l0-21swapper/007:38:010
134491390,4ptp4l0-21swapper/007:30:420
134491390,4ptp4l0-21swapper/007:16:470
134491390,3ptp4l5296-21meminfo10:55:190
134491390,3ptp4l23017-21apt-get11:35:122
134491390,3ptp4l15335-21iostat_ios07:50:171
134491390,3ptp4l14976-21df07:50:140
134491390,3ptp4l11825-21iostat11:10:161
134491390,3ptp4l11741-21ls07:40:251
134491390,3ptp4l0-21swapper/112:05:161
28613993832,3cyclictest25-21ksoftirqd/111:30:151
134491380,4ptp4l0-21swapper/210:40:132
134491380,4ptp4l0-21swapper/209:50:172
134491380,4ptp4l0-21swapper/208:08:282
134491380,4ptp4l0-21swapper/207:21:292
134491380,4ptp4l0-21swapper/111:52:341
134491380,4ptp4l0-21swapper/111:15:561
134491380,4ptp4l0-21swapper/110:57:321
134491380,4ptp4l0-21swapper/110:25:241
134491380,4ptp4l0-21swapper/110:11:381
134491380,4ptp4l0-21swapper/110:06:251
134491380,4ptp4l0-21swapper/108:22:121
134491380,4ptp4l0-21swapper/108:05:211
134491380,4ptp4l0-21swapper/011:30:060
134491380,4ptp4l0-21swapper/009:15:190
134491380,4ptp4l0-21swapper/008:05:090
134491380,4ptp4l0-21swapper/007:21:420
134491380,3ptp4l8555-21/usr/sbin/munin08:45:161
134491380,3ptp4l31045-21irqstats11:50:190
134491380,3ptp4l2643-21ls09:40:212
134491380,3ptp4l0-21swapper/211:30:152
134491380,3ptp4l0-21swapper/111:40:471
134491380,3ptp4l0-21swapper/110:16:401
134491380,3ptp4l0-21swapper/107:16:111
134491370,4ptp4l0-21swapper/112:15:031
134491370,4ptp4l0-21swapper/111:57:221
134491370,4ptp4l0-21swapper/108:15:581
134491370,3ptp4l0-21swapper/211:15:032
134491370,3ptp4l0-21swapper/111:04:331
134491370,2ptp4l0-21swapper/109:35:181
273662182,9sleep127398-21ntp_states07:05:211
137891154,6phc2sys0-21swapper/007:10:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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