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2026-05-22 - 21:10
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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 792 highest latencies:
System rackdslot3.osadl.org (updated Fri May 22, 2026 00:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
249442229173,45sleep20-21swapper/219:09:592
139491208164,33phc2sys0-21swapper/319:09:543
247092203170,22sleep00-21swapper/019:06:550
246152197164,22sleep10-21swapper/119:05:471
139391670,1ptp4l401ktimersoftd/323:03:233
279602560,2sleep20-21swapper/222:35:252
139391550,1ptp4l401ktimersoftd/321:35:233
139391550,1ptp4l401ktimersoftd/320:42:383
139391550,1ptp4l401ktimersoftd/320:35:213
13372530,2sleep01339-21sendmail_mailst19:25:240
139391490,1ptp4l7394-21apt-get19:40:113
139391480,1ptp4l401ktimersoftd/319:24:223
139391470,1ptp4l401ktimersoftd/323:52:113
139391460,1ptp4l401ktimersoftd/323:12:233
25241994541,2cyclictest41-21ksoftirqd/321:15:003
139391430,0ptp4l401ktimersoftd/321:45:083
139391420,0ptp4l401ktimersoftd/322:53:003
139391420,0ptp4l401ktimersoftd/322:05:243
139391420,0ptp4l401ktimersoftd/322:05:243
139391420,0ptp4l401ktimersoftd/320:15:313
139391420,0ptp4l401ktimersoftd/320:15:313
139391420,0ptp4l401ktimersoftd/320:00:283
139391410,0ptp4l401ktimersoftd/300:33:093
25241994029,9cyclictest41-21ksoftirqd/323:25:163
25241993934,3cyclictest41-21ksoftirqd/323:00:003
25241993927,10cyclictest41-21ksoftirqd/321:30:273
25241993833,3cyclictest41-21ksoftirqd/322:40:013
25241993833,3cyclictest1300-21snmpd00:26:013
139391380,0ptp4l401ktimersoftd/323:15:113
25241993733,2cyclictest41-21ksoftirqd/323:50:003
25241993731,4cyclictest41-21ksoftirqd/321:29:383
25241993731,3cyclictest10359-21irqrtprio22:00:183
25241993731,3cyclictest10359-21irqrtprio22:00:173
25240993731,4cyclictest33-21ksoftirqd/222:04:492
25240993731,4cyclictest33-21ksoftirqd/222:04:492
25240993730,5cyclictest33-21ksoftirqd/200:02:462
25239993733,2cyclictest25-21ksoftirqd/123:29:591
25239993732,3cyclictest25-21ksoftirqd/123:09:591
25239993731,4cyclictest25-21ksoftirqd/120:22:341
25239993731,4cyclictest25-21ksoftirqd/100:36:111
25238993730,4cyclictest9-21ksoftirqd/000:19:300
139391370,0ptp4l401ktimersoftd/322:45:153
25240993630,4cyclictest33-21ksoftirqd/221:12:162
25239993630,4cyclictest25-21ksoftirqd/122:07:121
25239993630,4cyclictest25-21ksoftirqd/122:07:121
25238993630,4cyclictest9-21ksoftirqd/000:12:320
25241993532,2cyclictest41-21ksoftirqd/321:05:003
25241993531,2cyclictest41-21ksoftirqd/322:10:253
25241993530,3cyclictest41-21ksoftirqd/322:30:243
25241993530,3cyclictest41-21ksoftirqd/320:25:003
25241993530,3cyclictest41-21ksoftirqd/319:50:043
25241993529,4cyclictest41-21ksoftirqd/321:58:193
25241993529,4cyclictest41-21ksoftirqd/300:04:443
25240993529,4cyclictest33-21ksoftirqd/222:55:482
25240993529,4cyclictest33-21ksoftirqd/222:40:022
25240993529,4cyclictest33-21ksoftirqd/221:46:062
25240993528,5cyclictest33-21ksoftirqd/200:24:002
25240993528,4cyclictest33-21ksoftirqd/220:40:042
25240993528,4cyclictest33-21ksoftirqd/220:08:412
25239993531,2cyclictest25-21ksoftirqd/119:10:141
25239993529,4cyclictest25-21ksoftirqd/123:58:211
25239993529,4cyclictest25-21ksoftirqd/123:58:211
25239993529,4cyclictest25-21ksoftirqd/122:21:481
25239993529,4cyclictest25-21ksoftirqd/121:13:171
25239993529,4cyclictest25-21ksoftirqd/120:59:561
25239993529,4cyclictest25-21ksoftirqd/119:52:291
25239993529,4cyclictest25-21ksoftirqd/119:29:261
25238993530,3cyclictest9-21ksoftirqd/000:00:100
25238993529,4cyclictest9-21ksoftirqd/022:11:160
25238993529,4cyclictest9-21ksoftirqd/021:41:270
25238993529,4cyclictest9-21ksoftirqd/019:31:220
2524199347,2cyclictest41-21ksoftirqd/323:20:263
25241993430,3cyclictest41-21ksoftirqd/320:15:003
25241993430,2cyclictest41-21ksoftirqd/320:50:133
25241993429,3cyclictest41-21ksoftirqd/321:07:073
25241993428,4cyclictest41-21ksoftirqd/320:25:403
25241993428,3cyclictest41-21ksoftirqd/321:50:283
25240993429,3cyclictest23127-21uname23:35:002
25240993428,4cyclictest33-21ksoftirqd/223:20:592
25240993428,4cyclictest33-21ksoftirqd/220:25:082
25240993428,4cyclictest33-21ksoftirqd/219:30:402
25239993428,4cyclictest25-21ksoftirqd/123:53:141
25239993428,4cyclictest25-21ksoftirqd/123:48:491
25239993428,4cyclictest25-21ksoftirqd/122:52:571
25239993428,4cyclictest25-21ksoftirqd/120:27:271
25239993427,5cyclictest25-21ksoftirqd/121:53:521
25238993429,3cyclictest9-21ksoftirqd/021:57:130
25238993428,4cyclictest9-21ksoftirqd/023:23:140
25238993428,4cyclictest9-21ksoftirqd/021:16:360
25238993428,4cyclictest9-21ksoftirqd/020:43:550
25238993428,4cyclictest9-21ksoftirqd/020:39:220
25238993428,4cyclictest9-21ksoftirqd/020:13:420
852423327,2sleep233-21ksoftirqd/221:55:272
25241993330,2cyclictest41-21ksoftirqd/322:25:203
25241993329,3cyclictest41-21ksoftirqd/319:30:113
25241993329,2cyclictest41-21ksoftirqd/319:30:003
25241993327,4cyclictest41-21ksoftirqd/322:44:373
25241993327,4cyclictest41-21ksoftirqd/319:16:323
25241993327,4cyclictest41-21ksoftirqd/319:11:313
2524199331,2cyclictest121rcu_preempt00:35:183
25240993328,3cyclictest33-21ksoftirqd/219:48:232
25240993328,3cyclictest33-21ksoftirqd/200:12:032
25240993327,4cyclictest33-21ksoftirqd/222:52:232
25240993327,4cyclictest33-21ksoftirqd/221:52:202
25240993327,4cyclictest33-21ksoftirqd/221:07:042
25240993327,4cyclictest33-21ksoftirqd/220:39:042
25240993327,4cyclictest33-21ksoftirqd/220:00:402
25240993327,4cyclictest33-21ksoftirqd/219:17:192
25240993327,4cyclictest33-21ksoftirqd/219:12:382
25239993328,3cyclictest25-21ksoftirqd/123:15:201
25239993328,3cyclictest25-21ksoftirqd/122:35:121
25239993327,4cyclictest25-21ksoftirqd/123:02:191
25239993327,4cyclictest25-21ksoftirqd/121:07:311
25239993327,4cyclictest25-21ksoftirqd/120:51:501
25239993327,4cyclictest25-21ksoftirqd/120:13:301
25239993327,4cyclictest25-21ksoftirqd/119:45:511
25239993327,4cyclictest25-21ksoftirqd/100:00:461
25238993329,3cyclictest9-21ksoftirqd/020:55:180
25238993329,2cyclictest9-21ksoftirqd/022:45:000
25238993327,4cyclictest9-21ksoftirqd/023:58:470
25238993327,4cyclictest9-21ksoftirqd/023:58:470
25238993327,4cyclictest9-21ksoftirqd/023:01:260
25238993327,4cyclictest9-21ksoftirqd/020:51:160
25238993327,4cyclictest9-21ksoftirqd/020:33:560
25238993327,4cyclictest9-21ksoftirqd/020:19:280
25238993327,4cyclictest9-21ksoftirqd/020:19:270
25238993327,4cyclictest9-21ksoftirqd/000:09:070
25238993326,5cyclictest9-21ksoftirqd/019:19:220
25238993326,4cyclictest9-21ksoftirqd/023:06:170
1394913327,3phc2sys41-21ksoftirqd/319:55:223
25241993229,2cyclictest41-21ksoftirqd/322:20:243
25241993229,2cyclictest41-21ksoftirqd/320:50:013
25241993228,3cyclictest41-21ksoftirqd/320:35:003
25241993228,2cyclictest41-21ksoftirqd/322:20:003
25241993227,3cyclictest41-21ksoftirqd/320:55:173
25241993227,3cyclictest41-21ksoftirqd/300:23:103
25241993226,4cyclictest41-21ksoftirqd/300:08:533
25240993227,3cyclictest33-21ksoftirqd/223:58:372
25240993227,3cyclictest33-21ksoftirqd/223:58:372
25240993227,3cyclictest33-21ksoftirqd/223:05:122
25240993226,4cyclictest33-21ksoftirqd/223:44:462
25240993226,4cyclictest33-21ksoftirqd/220:55:572
25240993225,5cyclictest33-21ksoftirqd/223:49:552
25239993227,3cyclictest25-21ksoftirqd/123:20:111
25239993227,3cyclictest25-21ksoftirqd/122:00:371
25239993227,3cyclictest25-21ksoftirqd/122:00:371
25239993226,4cyclictest25-21ksoftirqd/123:40:391
25239993226,4cyclictest25-21ksoftirqd/123:33:211
25239993226,4cyclictest25-21ksoftirqd/119:39:591
25239993226,4cyclictest25-21ksoftirqd/100:07:431
25238993227,3cyclictest9-21ksoftirqd/023:27:040
25238993227,3cyclictest9-21ksoftirqd/021:02:060
25238993227,3cyclictest9-21ksoftirqd/019:59:590
25238993226,4cyclictest9-21ksoftirqd/022:15:290
25238993226,4cyclictest9-21ksoftirqd/021:14:430
22062320,4sleep12208-21irqrtprio20:35:171
139391320,0ptp4l401ktimersoftd/319:45:183
139391320,0ptp4l401ktimersoftd/319:38:463
25241993128,2cyclictest41-21ksoftirqd/321:15:203
25241993127,2cyclictest41-21ksoftirqd/300:10:193
25241993126,3cyclictest41-21ksoftirqd/323:45:003
25241993126,3cyclictest41-21ksoftirqd/321:40:103
25240993126,3cyclictest33-21ksoftirqd/223:28:392
25240993126,3cyclictest33-21ksoftirqd/222:30:352
25240993126,3cyclictest33-21ksoftirqd/220:18:072
25240993126,3cyclictest33-21ksoftirqd/220:18:062
25240993126,3cyclictest33-21ksoftirqd/219:26:082
25240993125,4cyclictest33-21ksoftirqd/221:30:432
25240993125,4cyclictest33-21ksoftirqd/221:02:142
25240993125,4cyclictest33-21ksoftirqd/220:46:012
25240993125,4cyclictest33-21ksoftirqd/219:39:102
25240993125,4cyclictest33-21ksoftirqd/200:18:592
25240993125,4cyclictest33-21ksoftirqd/200:07:592
25239993126,3cyclictest25-21ksoftirqd/121:33:401
25239993126,3cyclictest25-21ksoftirqd/121:16:421
25239993126,3cyclictest25-21ksoftirqd/120:30:171
25239993126,3cyclictest25-21ksoftirqd/120:00:111
25239993126,3cyclictest25-21ksoftirqd/119:56:171
25239993126,3cyclictest25-21ksoftirqd/119:40:071
25239993126,3cyclictest25-21ksoftirqd/119:30:191
25239993126,3cyclictest25-21ksoftirqd/119:17:001
25239993125,3cyclictest25-21ksoftirqd/122:15:051
25239993124,5cyclictest25-21ksoftirqd/122:42:591
25238993128,1cyclictest0-21swapper/019:10:010
25238993126,3cyclictest9-21ksoftirqd/020:08:530
25238993126,3cyclictest9-21ksoftirqd/019:47:180
25238993125,4cyclictest9-21ksoftirqd/023:31:120
25238993125,4cyclictest9-21ksoftirqd/021:09:220
25238993125,4cyclictest9-21ksoftirqd/020:25:340
25238993125,3cyclictest9-21ksoftirqd/019:54:590
25241993026,2cyclictest41-21ksoftirqd/323:40:003
25241993026,2cyclictest391rcuc/323:55:143
25241993026,2cyclictest391rcuc/323:55:143
25241993025,3cyclictest41-21ksoftirqd/321:23:223
25241993024,4cyclictest41-21ksoftirqd/300:19:123
25240993025,3cyclictest33-21ksoftirqd/223:53:052
25240993025,3cyclictest33-21ksoftirqd/222:14:472
25240993025,3cyclictest33-21ksoftirqd/222:05:362
25240993025,3cyclictest33-21ksoftirqd/222:05:362
25240993025,3cyclictest33-21ksoftirqd/221:29:402
25240993025,3cyclictest33-21ksoftirqd/220:54:022
25240993025,3cyclictest33-21ksoftirqd/219:53:032
25240993025,3cyclictest33-21ksoftirqd/200:39:182
25240993024,4cyclictest33-21ksoftirqd/223:35:512
25240993024,4cyclictest33-21ksoftirqd/223:18:102
25240993024,4cyclictest33-21ksoftirqd/223:13:092
25240993024,4cyclictest33-21ksoftirqd/221:17:502
25239993025,3cyclictest25-21ksoftirqd/123:39:141
25239993025,3cyclictest25-21ksoftirqd/121:20:031
25239993025,3cyclictest25-21ksoftirqd/120:15:161
25239993025,3cyclictest25-21ksoftirqd/120:15:161
25239993025,3cyclictest25-21ksoftirqd/100:15:521
25239993024,4cyclictest25-21ksoftirqd/123:10:341
25239993024,4cyclictest25-21ksoftirqd/122:49:001
25239993024,4cyclictest25-21ksoftirqd/121:46:341
25239993024,4cyclictest25-21ksoftirqd/119:20:481
25239993024,4cyclictest25-21ksoftirqd/100:25:531
25238993025,3cyclictest9-21ksoftirqd/023:50:290
25238993024,4cyclictest9-21ksoftirqd/022:57:540
25238993024,4cyclictest9-21ksoftirqd/022:52:570
25238993024,4cyclictest9-21ksoftirqd/022:36:270
25238993024,4cyclictest9-21ksoftirqd/021:33:460
25238993024,4cyclictest9-21ksoftirqd/021:20:370
25240992925,3cyclictest33-21ksoftirqd/219:23:082
25240992924,3cyclictest33-21ksoftirqd/222:45:292
25240992924,3cyclictest33-21ksoftirqd/222:27:282
25239992924,3cyclictest25-21ksoftirqd/121:43:391
25239992924,3cyclictest25-21ksoftirqd/121:00:191
25239992924,3cyclictest25-21ksoftirqd/120:05:111
25238992924,3cyclictest9-21ksoftirqd/019:44:100
25238992924,3cyclictest9-21ksoftirqd/019:24:230
25238992924,3cyclictest9-21ksoftirqd/000:24:070
25238992923,4cyclictest9-21ksoftirqd/022:47:460
25238992923,4cyclictest9-21ksoftirqd/022:22:520
25238992923,4cyclictest9-21ksoftirqd/022:02:220
25238992923,4cyclictest9-21ksoftirqd/022:02:220
25241992824,2cyclictest41-21ksoftirqd/323:05:143
25241992823,3cyclictest41-21ksoftirqd/320:09:593
25240992823,3cyclictest33-21ksoftirqd/221:41:012
25240992823,3cyclictest33-21ksoftirqd/220:20:592
25240992823,3cyclictest33-21ksoftirqd/200:34:542
25240992822,4cyclictest33-21ksoftirqd/223:03:222
25240992822,4cyclictest33-21ksoftirqd/222:24:222
25240992822,4cyclictest33-21ksoftirqd/219:43:072
25239992824,3cyclictest25-21ksoftirqd/100:30:201
25239992823,3cyclictest25-21ksoftirqd/122:55:011
25239992823,3cyclictest25-21ksoftirqd/122:32:191
25238992823,3cyclictest9-21ksoftirqd/023:35:490
25238992823,3cyclictest9-21ksoftirqd/023:12:340
25238992823,3cyclictest9-21ksoftirqd/020:01:180
25238992822,4cyclictest9-21ksoftirqd/022:28:420
25238992822,4cyclictest9-21ksoftirqd/021:28:080
25240992722,3cyclictest33-21ksoftirqd/220:31:012
25240992722,3cyclictest33-21ksoftirqd/220:14:292
25240992722,3cyclictest33-21ksoftirqd/200:25:112
25240992721,4cyclictest33-21ksoftirqd/221:21:322
25239992723,3cyclictest25-21ksoftirqd/121:39:591
25239992720,5cyclictest25-21ksoftirqd/120:49:221
25238992722,3cyclictest9-21ksoftirqd/023:19:200
25238992722,3cyclictest9-21ksoftirqd/021:52:070
25238992721,4cyclictest9-21ksoftirqd/022:34:260
25241992621,2cyclictest41-21ksoftirqd/323:30:133
25240992621,3cyclictest33-21ksoftirqd/222:17:542
25240992620,4cyclictest33-21ksoftirqd/221:37:372
25240992620,4cyclictest33-21ksoftirqd/219:59:232
25239992621,3cyclictest25-21ksoftirqd/122:25:531
25239992621,3cyclictest25-21ksoftirqd/121:25:181
25238992622,2cyclictest9-21ksoftirqd/019:38:120
212592260,6sleep021263-21timerandwakeup00:35:260
25239992520,3cyclictest25-21ksoftirqd/121:58:311
25238992520,3cyclictest9-21ksoftirqd/023:43:150
25238992520,3cyclictest9-21ksoftirqd/021:45:370
25239992419,3cyclictest25-21ksoftirqd/122:10:261
25239992419,3cyclictest25-21ksoftirqd/120:44:191
25239992419,3cyclictest25-21ksoftirqd/100:10:191
25238992418,4cyclictest9-21ksoftirqd/021:39:350
25239992319,3cyclictest25-21ksoftirqd/100:22:431
25238992217,3cyclictest9-21ksoftirqd/020:48:030
25238992117,2cyclictest9-21ksoftirqd/022:05:020
25238992117,2cyclictest9-21ksoftirqd/022:05:020
25238992015,3cyclictest9-21ksoftirqd/000:30:000
25238991914,3cyclictest28779-21if_err_enp1s023:45:170
25238991913,3cyclictest17895-21hwlatdetect00:30:170
25238991813,3cyclictest26728-21expr20:20:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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