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2026-04-25 - 13:30
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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 Sat Apr 25, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2325821520,5sleep00-21swapper/020:40:150
2447921410,6sleep31364399cyclictest23:00:233
1364199741,29cyclictest25070-21latency_hist20:45:011
13641997410,22cyclictest22046-21timerwakeupswit20:35:261
134491730,10ptp4l12148-21irqstats19:05:191
1364199720,29cyclictest25510-21seq00:12:001
1364199700,26cyclictest7193-21tune2fs21:15:161
1364199692,28cyclictest0-21swapper/122:00:241
1364199690,29cyclictest18404-21seq23:57:001
1364199684,23cyclictest31783-21phc2sys00:25:251
1364199681,24cyclictest30533-21cut19:45:191
1364199680,27cyclictest20251-21seq20:34:541
1364199679,19cyclictest18126-21cat20:30:001
1364199670,25cyclictest8647-21timerandwakeup22:25:281
1364199670,22cyclictest25221-21egrep19:35:121
1364199660,26cyclictest9713-21sed23:40:151
13562660,7sleep11364199cyclictest00:30:181
1364199650,28cyclictest6725-21chrt22:22:181
1364199640,24cyclictest26605-21irqrtprio00:15:201
1364199640,24cyclictest26605-21irqrtprio00:15:191
13640996433,8cyclictest9-21ksoftirqd/023:20:180
13640996431,5cyclictest9-21ksoftirqd/000:05:270
1364199631,59cyclictest7599-21meminfo20:05:201
1364199631,59cyclictest20273-21users21:40:291
1364199631,58cyclictest4653-21df_inode20:00:141
1364199630,33cyclictest29538-21awk23:10:251
1364199630,28cyclictest11389-21taskset22:32:291
13640996334,5cyclictest9-21ksoftirqd/000:00:200
13640996330,4cyclictest9-21ksoftirqd/019:20:270
1364199621,28cyclictest4454-21seq22:17:561
1364199620,28cyclictest6782-21taskset23:33:531
1364199620,28cyclictest4223-21chrt23:25:371
13640996229,6cyclictest9-21ksoftirqd/022:05:270
13640996224,6cyclictest9-21ksoftirqd/022:55:170
13640996224,6cyclictest9-21ksoftirqd/021:44:590
1364199614,22cyclictest17748-21timerandwakeup21:35:271
1364199610,29cyclictest32186-21chrt22:07:461
1364199610,27cyclictest27355-21chrt23:05:351
13640996130,4cyclictest9-21ksoftirqd/022:33:560
13640996129,5cyclictest9-21ksoftirqd/019:35:180
13640996129,3cyclictest9-21ksoftirqd/019:50:000
13640996128,7cyclictest9-21ksoftirqd/000:40:010
1364199601,27cyclictest16300-21seq23:54:241
1364199600,29cyclictest20285-21taskset19:24:281
1364199600,28cyclictest15422-21taskset19:11:171
1364199600,25cyclictest24285-21cat23:00:201
1364199600,25cyclictest11204-21chrt21:24:491
13640996030,4cyclictest9-21ksoftirqd/020:23:290
13640996028,5cyclictest9-21ksoftirqd/023:45:280
13640996027,4cyclictest9-21ksoftirqd/020:25:190
13640996025,8cyclictest9-21ksoftirqd/023:40:190
13640996025,4cyclictest9-21ksoftirqd/021:05:230
13640996021,5cyclictest9-21ksoftirqd/021:00:180
134491600,4ptp4l0-21swapper/119:40:151
1364199591,29cyclictest4032-21seq21:07:151
1364199590,29cyclictest24688-21seq19:32:031
1364199590,28cyclictest27001-21taskset20:47:501
1364199590,24cyclictest21881-21mailstats19:25:251
13640995931,3cyclictest9-21ksoftirqd/020:10:250
13640995929,6cyclictest9-21ksoftirqd/023:10:250
13640995929,3cyclictest9-21ksoftirqd/022:45:070
13640995928,4cyclictest9-21ksoftirqd/020:07:340
13640995927,5cyclictest9-21ksoftirqd/022:15:270
13640995927,3cyclictest9-21ksoftirqd/000:12:370
13640995925,5cyclictest9-21ksoftirqd/022:35:190
134491590,4ptp4l0-21swapper/021:15:130
317092580,5sleep233-21ksoftirqd/200:25:232
1364199583,19cyclictest0-21swapper/120:00:001
1364199581,29cyclictest6218-21seq21:10:521
1364199580,33cyclictest16116-21chrt22:43:521
1364199580,30cyclictest7096-21seq23:35:021
1364199580,26cyclictest30282-21taskset00:23:541
13640995829,8cyclictest9-21ksoftirqd/020:40:010
13640995828,3cyclictest9-21ksoftirqd/023:38:420
13640995827,5cyclictest9-21ksoftirqd/020:15:270
13640995825,6cyclictest9-21ksoftirqd/019:30:130
134491580,3ptp4l0-21swapper/022:41:270
1364199577,46cyclictest22713-21unixbench_multi21:45:291
1364199571,28cyclictest22884-21taskset22:57:221
1364199570,28cyclictest25292-21seq21:53:001
13640995726,3cyclictest9-21ksoftirqd/022:52:050
13640995725,4cyclictest9-21ksoftirqd/019:55:000
13640995721,6cyclictest9-21ksoftirqd/023:05:120
134491570,4ptp4l0-21swapper/321:45:263
134491570,4ptp4l0-21swapper/023:25:190
134491570,3ptp4l0-21swapper/321:50:203
1364199562,26cyclictest0-21swapper/122:53:311
1364199560,32cyclictest1257-21ssh21:00:251
1364199560,29cyclictest20826-21seq00:03:181
1364199560,28cyclictest2055-21seq23:22:511
1364199560,28cyclictest12992-21taskset20:15:351
1364199560,27cyclictest22925-21chrt00:05:471
13640995626,5cyclictest9-21ksoftirqd/021:45:260
13640995626,4cyclictest9-21ksoftirqd/022:03:430
13640995623,5cyclictest9-21ksoftirqd/023:55:290
13640995621,5cyclictest9-21ksoftirqd/019:15:010
13640995619,5cyclictest9-21ksoftirqd/021:30:010
134491560,6ptp4l0-21swapper/319:08:513
134491560,4ptp4l0-21swapper/300:12:053
1364199551,30cyclictest4813-21seq00:38:451
1364199551,30cyclictest32071-21seq23:17:051
1364199550,28cyclictest2075-21seq22:12:341
13640995526,3cyclictest9-21ksoftirqd/019:56:060
13640995524,6cyclictest9-21ksoftirqd/021:35:160
13640995521,6cyclictest9-21ksoftirqd/019:25:270
134491550,4ptp4l0-21swapper/323:44:183
134491550,4ptp4l0-21swapper/323:13:003
134491550,3ptp4l0-21swapper/300:39:483
134491550,3ptp4l0-21swapper/023:15:130
1364199540,28cyclictest27393-21seq21:55:331
1364199540,28cyclictest15815-21seq21:32:141
1364199540,27cyclictest13619-21seq23:47:141
1364199540,26cyclictest15669-21seq20:24:591
1364099547,2cyclictest9-21ksoftirqd/021:25:010
13640995423,5cyclictest9-21ksoftirqd/000:15:200
13640995423,5cyclictest9-21ksoftirqd/000:15:190
13640995422,5cyclictest9-21ksoftirqd/022:10:140
13640995420,6cyclictest9-21ksoftirqd/021:30:200
13640995420,5cyclictest9-21ksoftirqd/019:45:010
134491540,4ptp4l0-21swapper/321:56:423
134491540,3ptp4l0-21swapper/321:09:553
1364199530,29cyclictest31902-21seq20:59:051
1364199530,28cyclictest1454-21taskset19:51:361
1364199530,27cyclictest10817-21chrt20:12:041
1364199530,26cyclictest18331-21chrt22:47:501
13640995320,5cyclictest9-21ksoftirqd/020:55:010
13640995320,4cyclictest9-21ksoftirqd/021:55:200
134491530,4ptp4l0-21swapper/200:37:342
134491530,3ptp4l20116-21runrttasks20:33:093
134491530,12ptp4l0-21swapper/200:30:132
1364199521,29cyclictest13884-21seq22:39:581
1364199520,28cyclictest17873-21seq19:18:151
1364199520,23cyclictest13503-21runrttasks21:29:501
1364099528,3cyclictest9-21ksoftirqd/000:30:190
13640995224,3cyclictest9-21ksoftirqd/022:24:370
13640995223,4cyclictest9-21ksoftirqd/023:50:140
13640995222,5cyclictest9-21ksoftirqd/021:50:250
13640995221,5cyclictest9-21ksoftirqd/000:20:160
134491520,4ptp4l0-21swapper/223:36:112
134491520,3ptp4l0-21swapper/321:15:233
134491520,3ptp4l0-21swapper/221:39:182
13640995121,6cyclictest9-21ksoftirqd/023:30:120
13640995121,6cyclictest9-21ksoftirqd/021:10:250
134491510,3ptp4l0-21swapper/200:12:052
13640995020,7cyclictest9-21ksoftirqd/020:45:170
13640995019,5cyclictest9-21ksoftirqd/019:15:130
13640995019,3cyclictest9-21ksoftirqd/020:33:160
13640995017,4cyclictest9-21ksoftirqd/020:00:200
13640995016,5cyclictest9-21ksoftirqd/022:25:150
134491500,4ptp4l0-21swapper/323:54:323
134491500,4ptp4l0-21swapper/221:51:562
134491500,2ptp4l10059-21ntp_states20:10:222
134491490,4ptp4l0-21swapper/321:32:143
134491490,4ptp4l0-21swapper/320:19:093
134491490,3ptp4l0-21swapper/219:55:042
13640994820,6cyclictest9-21ksoftirqd/020:50:260
134491480,4ptp4l0-21swapper/200:06:582
134491480,3ptp4l0-21swapper/223:56:582
134491480,11ptp4l0-21swapper/220:19:332
1364099477,2cyclictest9-21ksoftirqd/000:25:150
134491470,5ptp4l0-21swapper/219:05:442
134491470,4ptp4l0-21swapper/321:23:493
1364199460,26cyclictest29427-21taskset20:54:301
13640994610,4cyclictest9-21ksoftirqd/023:04:550
134491460,3ptp4l0-21swapper/323:05:193
134491450,8ptp4l11290-21/usr/sbin/munin19:05:120
134491450,5ptp4l0-21swapper/320:35:113
134491450,4ptp4l4352-21apt-get20:00:122
134491450,4ptp4l16461-21apt-get22:45:152
134491450,4ptp4l0-21swapper/322:05:133
134491450,4ptp4l0-21swapper/300:21:283
134491450,3ptp4l0-21swapper/322:24:313
134491450,3ptp4l0-21swapper/220:40:202
134491440,5ptp4l0-21swapper/221:05:112
134491440,4ptp4l30317-21apt-get22:05:122
134491440,4ptp4l18917-21apt-get00:00:113
134491440,3ptp4l0-21swapper/223:42:592
134491430,5ptp4l0-21swapper/319:47:523
134491430,5ptp4l0-21swapper/319:30:113
134491430,4ptp4l0-21swapper/321:26:213
134491430,4ptp4l0-21swapper/221:26:302
134491430,4ptp4l0-21swapper/219:48:212
134491430,3ptp4l0-21swapper/221:55:262
134491430,3ptp4l0-21swapper/221:16:152
134491430,3ptp4l0-21swapper/200:25:002
134491420,9ptp4l0-21swapper/223:00:562
134491420,9ptp4l0-21swapper/222:22:262
134491420,5ptp4l29472-21apt-get20:55:032
134491420,5ptp4l26117-21meminfo19:35:192
134491420,5ptp4l0-21swapper/323:30:123
134491420,5ptp4l0-21swapper/300:30:123
134491420,5ptp4l0-21swapper/223:20:212
134491420,4ptp4l6173-21users21:10:272
134491420,4ptp4l22876-21apt-get19:30:122
134491420,4ptp4l1985-21apt-get19:55:123
134491420,4ptp4l0-21swapper/320:10:213
134491420,3ptp4l0-21swapper/221:00:232
134491410,9ptp4l0-21swapper/223:50:422
134491410,9ptp4l0-21swapper/222:32:532
134491410,5ptp4l6030-21ps23:30:222
134491410,5ptp4l0-21swapper/320:00:273
134491410,4ptp4l41-21ksoftirqd/319:35:173
134491410,4ptp4l0-21swapper/321:35:213
134491410,4ptp4l0-21swapper/320:47:333
134491410,3ptp4l32081-21apt-get19:50:122
134491410,3ptp4l13621-21apt-get20:20:112
134491410,3ptp4l0-21swapper/300:17:173
134491410,3ptp4l0-21swapper/300:17:173
134491400,5ptp4l0-21swapper/321:01:113
134491400,5ptp4l0-21swapper/223:14:502
134491400,4ptp4l24042-21ps20:40:233
134491400,4ptp4l0-21swapper/323:39:083
134491400,4ptp4l0-21swapper/319:50:253
134491400,4ptp4l0-21swapper/223:15:142
134491400,4ptp4l0-21swapper/222:40:372
134491400,4ptp4l0-21swapper/221:45:212
134491400,4ptp4l0-21swapper/220:35:132
134491400,4ptp4l0-21swapper/219:42:232
134491400,4ptp4l0-21swapper/200:15:202
134491400,4ptp4l0-21swapper/200:15:192
134491400,3ptp4l31050-21ntp_states20:55:233
134491400,3ptp4l15125-21ls20:20:253
134491400,3ptp4l1301-21snmpd23:56:033
134491400,3ptp4l0-21swapper/220:53:142
134491390,5ptp4l0-21swapper/219:20:132
134491390,4ptp4l30760-21if_enp4s023:15:173
134491390,4ptp4l28535-21chrt22:00:183
134491390,4ptp4l0-21swapper/322:54:183
134491390,4ptp4l0-21swapper/322:15:163
134491390,4ptp4l0-21swapper/321:40:183
134491390,4ptp4l0-21swapper/321:10:273
134491390,4ptp4l0-21swapper/320:50:443
134491390,4ptp4l0-21swapper/320:08:383
134491390,4ptp4l0-21swapper/319:40:263
134491390,4ptp4l0-21swapper/300:28:013
134491390,4ptp4l0-21swapper/223:45:302
134491390,4ptp4l0-21swapper/223:25:012
134491390,4ptp4l0-21swapper/223:05:252
134491390,4ptp4l0-21swapper/222:55:192
134491390,4ptp4l0-21swapper/222:39:462
134491390,4ptp4l0-21swapper/222:01:362
134491390,4ptp4l0-21swapper/221:30:052
134491390,4ptp4l0-21swapper/220:31:092
134491390,4ptp4l0-21swapper/220:26:302
134491390,4ptp4l0-21swapper/220:05:162
134491390,4ptp4l0-21swapper/219:25:252
134491390,4ptp4l0-21swapper/200:04:522
134491390,3ptp4l15087-21ls19:10:252
134491390,3ptp4l0-21swapper/222:15:152
134491390,3ptp4l0-21swapper/221:40:162
134491390,3ptp4l0-21swapper/221:21:592
134491390,3ptp4l0-21swapper/219:17:312
134491380,4ptp4l20401-21latency_hist19:25:003
134491380,4ptp4l0-21swapper/323:45:403
134491380,4ptp4l0-21swapper/323:20:083
134491380,4ptp4l0-21swapper/322:37:033
134491380,4ptp4l0-21swapper/322:31:243
134491380,4ptp4l0-21swapper/322:10:243
134491380,4ptp4l0-21swapper/320:25:173
134491380,4ptp4l0-21swapper/319:10:013
134491380,4ptp4l0-21swapper/300:05:003
134491380,4ptp4l0-21swapper/222:25:032
134491380,4ptp4l0-21swapper/222:10:422
134491380,4ptp4l0-21swapper/220:45:432
134491380,3ptp4l1301-21snmpd23:25:033
134491380,3ptp4l0-21swapper/322:45:163
134491380,3ptp4l0-21swapper/319:15:153
134491380,3ptp4l0-21swapper/222:50:122
134491370,4ptp4l0-21swapper/322:55:103
134491370,3ptp4l0-21swapper/322:41:263
134491360,4ptp4l0-21swapper/319:27:223
134491340,3ptp4l0-21swapper/322:26:173
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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