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2026-04-02 - 09:19
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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 rackdslot4.osadl.org (updated Thu Apr 02, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591207173,22phc2sys0-21swapper/319:07:593
33182203169,22sleep10-21swapper/119:09:161
32052201167,22sleep00-21swapper/019:07:460
30812198167,21sleep20-21swapper/219:06:112
131912670,5sleep312945-21latency_hist21:40:013
90302630,2sleep30-21swapper/323:40:123
367699630,3cyclictest23195-21latency_hist22:00:001
26582580,5sleep125-21ksoftirqd/100:30:201
367599535,6cyclictest24260-21cut22:00:180
138491520,1ptp4l401ktimersoftd/323:57:213
3675994811,5cyclictest9-21ksoftirqd/019:11:380
367599475,6cyclictest11867-21irqrtprio20:30:190
367599460,11cyclictest5247-21ls22:25:250
367599445,6cyclictest3193-21/usr/sbin/munin23:25:260
367599440,10cyclictest21134-21expr21:55:130
138491440,0ptp4l401ktimersoftd/300:37:423
138491430,0ptp4l401ktimersoftd/323:21:483
138491430,0ptp4l401ktimersoftd/320:35:433
138491430,0ptp4l401ktimersoftd/320:05:393
138491420,0ptp4l401ktimersoftd/322:25:003
138491420,0ptp4l401ktimersoftd/321:40:473
138491420,0ptp4l401ktimersoftd/320:26:533
138491420,0ptp4l401ktimersoftd/319:52:253
367699410,3cyclictest15557-21taskset22:47:371
367599414,6cyclictest6452-21cat21:25:170
3675994121,4cyclictest9-21ksoftirqd/021:22:400
138491410,0ptp4l401ktimersoftd/319:15:203
3677994034,3cyclictest33-21ksoftirqd/200:25:112
3676994035,3cyclictest25-21ksoftirqd/100:29:591
3676994027,11cyclictest25-21ksoftirqd/100:10:081
367699402,27cyclictest7799-21taskset23:35:241
3677993929,3cyclictest33-21ksoftirqd/219:40:012
367699391,16cyclictest0-21swapper/120:25:161
3675993933,4cyclictest9-21ksoftirqd/020:55:000
3675993921,4cyclictest9-21ksoftirqd/021:13:450
3675993920,3cyclictest9-21ksoftirqd/021:09:000
3675993910,5cyclictest9-21ksoftirqd/019:21:370
3675993910,5cyclictest9-21ksoftirqd/019:21:370
138491390,0ptp4l401ktimersoftd/321:15:143
138491390,0ptp4l401ktimersoftd/319:30:133
3678993832,4cyclictest41-21ksoftirqd/323:47:063
3677993833,3cyclictest33-21ksoftirqd/220:55:002
3676993830,5cyclictest25-21ksoftirqd/121:55:001
367599386,5cyclictest9-21ksoftirqd/019:30:220
367599383,4cyclictest9-21ksoftirqd/023:33:570
3675993820,8cyclictest9-21ksoftirqd/020:15:490
138491380,1ptp4l401ktimersoftd/322:06:193
3677993731,4cyclictest33-21ksoftirqd/220:41:272
3677993731,4cyclictest33-21ksoftirqd/220:23:072
3677993731,4cyclictest33-21ksoftirqd/220:00:472
3677993731,4cyclictest33-21ksoftirqd/219:51:242
3677993731,4cyclictest33-21ksoftirqd/200:04:382
367699370,3cyclictest2840-21taskset21:17:061
367599377,5cyclictest9-21ksoftirqd/023:06:010
367599376,5cyclictest9-21ksoftirqd/023:02:070
367599376,4cyclictest9-21ksoftirqd/023:17:440
367599374,4cyclictest9-21ksoftirqd/022:24:130
3675993721,4cyclictest9-21ksoftirqd/020:21:310
3675993714,5cyclictest9-21ksoftirqd/022:40:260
138491370,0ptp4l401ktimersoftd/321:05:133
3678993630,4cyclictest41-21ksoftirqd/322:34:093
3678993630,4cyclictest41-21ksoftirqd/321:32:273
3678993630,4cyclictest41-21ksoftirqd/319:22:533
3678993630,4cyclictest41-21ksoftirqd/319:22:533
3678993630,3cyclictest41-21ksoftirqd/323:30:003
3677993631,3cyclictest33-21ksoftirqd/219:35:102
3677993630,4cyclictest33-21ksoftirqd/220:59:362
3677993630,4cyclictest33-21ksoftirqd/220:33:212
3677993630,4cyclictest33-21ksoftirqd/220:11:592
3676993630,4cyclictest25-21ksoftirqd/123:19:321
3676993630,4cyclictest25-21ksoftirqd/123:07:201
3676993630,4cyclictest25-21ksoftirqd/120:43:181
3676993630,4cyclictest25-21ksoftirqd/120:24:491
367599367,5cyclictest9-21ksoftirqd/020:40:390
367599366,5cyclictest9-21ksoftirqd/023:53:310
367599365,5cyclictest9-21ksoftirqd/023:43:440
367599363,8cyclictest9-21ksoftirqd/019:40:180
3675993630,4cyclictest15753-21idleruntime-cro22:50:000
3678993530,3cyclictest41-21ksoftirqd/323:40:003
3678993530,3cyclictest41-21ksoftirqd/323:00:183
3678993530,3cyclictest41-21ksoftirqd/321:05:003
3678993530,3cyclictest41-21ksoftirqd/319:14:113
3678993529,4cyclictest41-21ksoftirqd/322:18:013
3678993529,4cyclictest41-21ksoftirqd/322:10:103
3678993529,4cyclictest41-21ksoftirqd/320:56:293
3678993529,4cyclictest41-21ksoftirqd/320:52:313
3678993529,4cyclictest41-21ksoftirqd/300:15:333
3677993529,4cyclictest33-21ksoftirqd/223:10:582
3677993529,4cyclictest33-21ksoftirqd/221:46:382
3677993529,4cyclictest33-21ksoftirqd/221:20:582
3677993529,4cyclictest33-21ksoftirqd/221:06:022
3677993529,4cyclictest33-21ksoftirqd/200:36:272
3676993529,4cyclictest25-21ksoftirqd/122:23:241
3676993529,4cyclictest25-21ksoftirqd/119:53:171
3676993529,4cyclictest25-21ksoftirqd/119:34:341
3676993529,4cyclictest25-21ksoftirqd/119:28:491
3676993529,4cyclictest25-21ksoftirqd/100:23:091
367599356,5cyclictest9-21ksoftirqd/000:15:330
367599356,4cyclictest9-21ksoftirqd/022:34:440
367599356,4cyclictest9-21ksoftirqd/020:14:110
367599355,5cyclictest9-21ksoftirqd/021:18:180
367599355,4cyclictest9-21ksoftirqd/019:37:480
3675993529,4cyclictest9-21ksoftirqd/019:54:550
3675993513,6cyclictest9-21ksoftirqd/021:40:300
3678993429,3cyclictest41-21ksoftirqd/322:56:033
3678993429,3cyclictest41-21ksoftirqd/321:21:533
3678993429,3cyclictest41-21ksoftirqd/319:40:123
3678993428,4cyclictest41-21ksoftirqd/322:45:563
3678993428,4cyclictest41-21ksoftirqd/322:42:073
3678993428,4cyclictest41-21ksoftirqd/321:58:583
3678993428,4cyclictest41-21ksoftirqd/320:47:263
3678993428,4cyclictest41-21ksoftirqd/320:02:003
3678993428,4cyclictest41-21ksoftirqd/300:14:383
3678993428,4cyclictest41-21ksoftirqd/300:01:533
3677993429,4cyclictest33-21ksoftirqd/221:25:212
3677993429,3cyclictest33-21ksoftirqd/223:46:572
3677993429,3cyclictest33-21ksoftirqd/222:27:162
3677993429,3cyclictest33-21ksoftirqd/222:05:162
3677993428,4cyclictest33-21ksoftirqd/223:53:112
3677993428,4cyclictest33-21ksoftirqd/222:46:072
3677993428,4cyclictest33-21ksoftirqd/222:33:152
3677993428,4cyclictest33-21ksoftirqd/220:19:052
3677993428,4cyclictest33-21ksoftirqd/220:08:172
3677993428,4cyclictest33-21ksoftirqd/219:57:262
3677993428,4cyclictest33-21ksoftirqd/200:33:102
3677993428,3cyclictest33-21ksoftirqd/223:06:112
3677993428,3cyclictest33-21ksoftirqd/219:31:582
3676993428,4cyclictest25-21ksoftirqd/123:04:151
3676993428,4cyclictest25-21ksoftirqd/122:51:001
3676993428,4cyclictest25-21ksoftirqd/122:28:291
3676993428,4cyclictest25-21ksoftirqd/122:00:411
3676993428,4cyclictest25-21ksoftirqd/119:41:251
3676993428,4cyclictest25-21ksoftirqd/119:23:231
3676993428,4cyclictest25-21ksoftirqd/119:23:231
3676993427,5cyclictest25-21ksoftirqd/120:17:551
3676993427,4cyclictest25-21ksoftirqd/121:26:071
3676993427,4cyclictest25-21ksoftirqd/120:11:171
3676993427,4cyclictest25-21ksoftirqd/119:56:501
367699340,3cyclictest17835-21/usr/sbin/munin19:35:241
367599345,4cyclictest9-21ksoftirqd/020:03:080
3675993428,4cyclictest9-21ksoftirqd/022:37:020
3675993427,5cyclictest9-21ksoftirqd/000:33:080
138491340,10ptp4l0-21swapper/300:28:443
138491340,0ptp4l401ktimersoftd/323:05:023
3678993327,4cyclictest41-21ksoftirqd/322:03:483
3678993327,4cyclictest41-21ksoftirqd/321:45:553
3678993327,4cyclictest41-21ksoftirqd/320:17:413
3677993328,3cyclictest33-21ksoftirqd/223:20:102
3677993328,3cyclictest33-21ksoftirqd/222:10:172
3677993328,3cyclictest33-21ksoftirqd/222:01:102
3677993328,3cyclictest33-21ksoftirqd/221:36:212
3677993328,3cyclictest33-21ksoftirqd/219:25:252
3677993328,3cyclictest33-21ksoftirqd/200:05:232
3677993327,4cyclictest33-21ksoftirqd/223:39:032
3677993327,4cyclictest33-21ksoftirqd/222:38:092
3677993327,4cyclictest33-21ksoftirqd/221:13:442
3677993327,4cyclictest33-21ksoftirqd/219:48:192
3677993327,4cyclictest33-21ksoftirqd/219:17:112
3677993327,3cyclictest33-21ksoftirqd/220:45:172
3676993328,3cyclictest25-21ksoftirqd/123:22:401
3676993328,3cyclictest25-21ksoftirqd/120:50:101
3676993327,4cyclictest25-21ksoftirqd/123:54:021
3676993327,4cyclictest25-21ksoftirqd/122:34:511
3676993327,4cyclictest25-21ksoftirqd/122:06:191
3676993327,4cyclictest25-21ksoftirqd/100:05:481
3676993327,4cyclictest25-21ksoftirqd/100:04:121
3676993326,4cyclictest25-21ksoftirqd/123:46:441
3676993326,4cyclictest25-21ksoftirqd/122:36:231
367699330,3cyclictest25828-21grep21:00:131
367599336,5cyclictest9-21ksoftirqd/019:15:070
367599335,4cyclictest9-21ksoftirqd/022:05:390
3675993327,4cyclictest9-21ksoftirqd/022:14:560
3675993327,4cyclictest9-21ksoftirqd/021:31:520
3675993327,4cyclictest9-21ksoftirqd/000:15:000
3675993326,4cyclictest9-21ksoftirqd/021:54:420
138491330,0ptp4l401ktimersoftd/322:20:223
3678993227,3cyclictest41-21ksoftirqd/323:19:533
3678993227,3cyclictest41-21ksoftirqd/321:53:143
3678993226,4cyclictest41-21ksoftirqd/320:21:383
3677993228,3cyclictest33-21ksoftirqd/220:40:002
3677993227,3cyclictest33-21ksoftirqd/223:40:552
3677993227,3cyclictest33-21ksoftirqd/222:17:052
3677993227,3cyclictest33-21ksoftirqd/221:33:522
3677993226,4cyclictest33-21ksoftirqd/223:27:472
3677993225,4cyclictest33-21ksoftirqd/200:10:442
3676993227,3cyclictest25-21ksoftirqd/123:14:551
3676993226,4cyclictest25-21ksoftirqd/121:37:221
3676993226,4cyclictest25-21ksoftirqd/121:07:091
3676993226,4cyclictest25-21ksoftirqd/120:57:401
367699320,3cyclictest15719-21sendmail-msp20:40:001
367599325,4cyclictest9-21ksoftirqd/020:25:310
3675993226,4cyclictest9-21ksoftirqd/023:23:440
3675993226,4cyclictest9-21ksoftirqd/022:55:550
3675993226,4cyclictest9-21ksoftirqd/020:37:480
3675993226,4cyclictest9-21ksoftirqd/019:59:250
3675993226,4cyclictest9-21ksoftirqd/019:28:290
3675993226,4cyclictest9-21ksoftirqd/000:06:280
3675993226,4cyclictest9-21ksoftirqd/000:05:000
3675993212,5cyclictest9-21ksoftirqd/000:35:140
138491320,0ptp4l401ktimersoftd/320:31:003
138491320,0ptp4l401ktimersoftd/320:12:253
3678993127,3cyclictest41-21ksoftirqd/323:55:013
3678993127,2cyclictest138491ptp4l21:10:303
3678993127,2cyclictest138491ptp4l19:49:173
3678993126,3cyclictest41-21ksoftirqd/300:05:103
3678993125,4cyclictest41-21ksoftirqd/322:51:183
3678993125,4cyclictest41-21ksoftirqd/322:36:173
3678993125,4cyclictest41-21ksoftirqd/319:28:273
3677993126,3cyclictest33-21ksoftirqd/221:58:502
3677993126,3cyclictest33-21ksoftirqd/219:10:192
3677993125,4cyclictest33-21ksoftirqd/223:31:272
3677993125,4cyclictest33-21ksoftirqd/221:17:332
3677993125,4cyclictest33-21ksoftirqd/219:20:482
3677993125,4cyclictest33-21ksoftirqd/219:20:482
3676993126,3cyclictest25-21ksoftirqd/120:46:141
3676993126,3cyclictest25-21ksoftirqd/100:17:191
3676993125,4cyclictest25-21ksoftirqd/121:47:251
3676993125,4cyclictest25-21ksoftirqd/121:14:071
3676993125,4cyclictest25-21ksoftirqd/119:46:591
3676993114,14cyclictest5176-21sendmail_mailtr19:10:241
3676993111,17cyclictest13291-21cat20:35:001
3675993125,4cyclictest9-21ksoftirqd/020:46:340
138491310,0ptp4l401ktimersoftd/300:32:083
3678993026,2cyclictest41-21ksoftirqd/320:44:273
3678993025,3cyclictest41-21ksoftirqd/319:56:223
3678993025,3cyclictest41-21ksoftirqd/319:37:453
3677993025,3cyclictest33-21ksoftirqd/223:15:342
3677993025,3cyclictest33-21ksoftirqd/222:43:582
3677993025,3cyclictest33-21ksoftirqd/200:25:012
3677993024,4cyclictest33-21ksoftirqd/222:24:292
3677993024,3cyclictest33-21ksoftirqd/221:55:002
3677993019,9cyclictest33-21ksoftirqd/221:40:252
3676993025,3cyclictest25-21ksoftirqd/123:56:421
3676993025,3cyclictest25-21ksoftirqd/123:41:541
3676993025,3cyclictest25-21ksoftirqd/123:32:091
367699300,3cyclictest5217-21missed_timers00:35:211
367699300,3cyclictest19769-21memory22:55:201
3675993025,3cyclictest9-21ksoftirqd/023:58:140
3675993025,3cyclictest9-21ksoftirqd/023:37:520
3675993024,4cyclictest9-21ksoftirqd/023:47:330
3675993024,4cyclictest9-21ksoftirqd/022:50:060
268902300,2sleep20-21swapper/221:00:202
138491300,0ptp4l401ktimersoftd/300:24:483
3678992923,4cyclictest41-21ksoftirqd/321:25:413
3677992923,4cyclictest33-21ksoftirqd/223:57:522
3676992923,4cyclictest25-21ksoftirqd/121:44:321
367699292,20cyclictest28590-21apt-get20:00:121
367699290,3cyclictest0-21swapper/119:15:121
367699290,1cyclictest0-21swapper/121:35:001
3675992923,4cyclictest9-21ksoftirqd/020:56:530
3675992923,4cyclictest9-21ksoftirqd/019:45:020
3675992917,5cyclictest9-21ksoftirqd/021:48:280
138491290,11ptp4l0-21swapper/323:11:203
3678992822,4cyclictest41-21ksoftirqd/323:30:333
3677992821,4cyclictest33-21ksoftirqd/223:00:002
3677992818,9cyclictest33-21ksoftirqd/223:00:232
3676992823,3cyclictest25-21ksoftirqd/123:28:281
3676992811,14cyclictest5760-21latency_hist21:25:001
3676992811,14cyclictest11402-21expr22:40:141
3675992823,3cyclictest9-21ksoftirqd/021:01:590
3675992822,4cyclictest9-21ksoftirqd/023:12:290
3675992822,4cyclictest9-21ksoftirqd/000:27:270
3677992722,3cyclictest33-21ksoftirqd/220:29:012
3677992722,3cyclictest33-21ksoftirqd/200:16:072
3676992722,3cyclictest25-21ksoftirqd/122:16:041
367699272,19cyclictest31048-21apt-get20:05:121
3675992725,1cyclictest111rcuc/020:07:480
170972270,3sleep233-21ksoftirqd/222:50:212
367699261,19cyclictest28427-21apt-get22:10:121
3675992622,2cyclictest9-21ksoftirqd/021:35:190
3675992520,3cyclictest9-21ksoftirqd/000:21:150
367599221,9cyclictest9-21ksoftirqd/022:15:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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