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2026-08-30 - 23:26
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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 all highest latencies:
System rackdslot2.osadl.org (updated Sun Aug 30, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179842237169,22sleep20-21swapper/207:07:122
139591222164,47phc2sys0-21swapper/307:06:203
179422207175,21sleep10-21swapper/107:06:401
179722206171,23sleep00-21swapper/007:07:030
756221520,7sleep21870699cyclictest12:25:002
461421500,6sleep21870699cyclictest08:55:162
1324821400,6sleep21870699cyclictest12:35:192
139291810,2ptp4l391rcuc/310:45:233
311112660,2sleep00-21swapper/012:05:170
1870699598,23cyclictest12658-21cat08:05:002
288082530,4sleep21870699cyclictest09:45:182
177852520,2sleep00-21swapper/010:30:170
236852510,2sleep20-21swapper/209:35:152
1395914834,7phc2sys0-21swapper/307:10:013
1870799450,4cyclictest27448-21timerwakeupswit07:25:283
18706994437,4cyclictest27986-21cron07:30:002
18707994329,12cyclictest41-21ksoftirqd/311:05:313
139291430,0ptp4l401ktimersoftd/311:50:403
139291430,0ptp4l401ktimersoftd/309:36:143
121742430,4sleep312175-21turbostat.cron12:35:013
139291420,0ptp4l401ktimersoftd/311:29:463
139291410,0ptp4l401ktimersoftd/307:39:123
18706994018,19cyclictest9949-21grep12:30:012
1870699401,3cyclictest26760-21chrt08:34:582
18705994035,2cyclictest25-21ksoftirqd/110:10:001
18703994029,3cyclictest13677-21kworker/u8:008:30:160
1870399402,2cyclictest121rcu_preempt08:15:010
1870799391,27cyclictest0-21swapper/309:45:203
1870799390,3cyclictest3869-21/usr/sbin/munin11:10:263
18706993933,4cyclictest33-21ksoftirqd/208:25:132
1870699390,4cyclictest5993-21chrt11:14:562
18705993934,3cyclictest25-21ksoftirqd/111:24:591
18705993933,3cyclictest28059-21latency_hist09:45:011
18703993934,3cyclictest9-21ksoftirqd/008:50:000
18703993934,3cyclictest1-21systemd08:07:130
18707993832,4cyclictest41-21ksoftirqd/310:55:433
18707993832,4cyclictest41-21ksoftirqd/310:19:173
18707993832,4cyclictest41-21ksoftirqd/308:33:233
18706993832,4cyclictest33-21ksoftirqd/212:05:272
1870699381,3cyclictest17020-21latency_hist10:30:002
18705993833,3cyclictest25-21ksoftirqd/111:40:001
18705993833,3cyclictest25-21ksoftirqd/110:14:591
18705993832,3cyclictest25-21ksoftirqd/108:00:001
18703993832,4cyclictest9-21ksoftirqd/009:35:090
18707993732,3cyclictest41-21ksoftirqd/308:44:173
18706993731,4cyclictest33-21ksoftirqd/207:17:152
1870699371,3cyclictest25522-21cron11:55:002
18706993712,22cyclictest28317-21tr12:00:142
1870699370,3cyclictest20592-21chrt11:42:362
1870699370,3cyclictest20520-21chrt09:29:142
18705993733,3cyclictest25-21ksoftirqd/109:40:011
18705993732,3cyclictest25-21ksoftirqd/110:50:181
18705993732,3cyclictest25-21ksoftirqd/109:29:481
18705993732,3cyclictest25-21ksoftirqd/108:55:001
18705993732,3cyclictest25-21ksoftirqd/108:00:191
18705993731,4cyclictest25-21ksoftirqd/109:00:281
18705993731,4cyclictest25-21ksoftirqd/109:00:281
18705993730,4cyclictest25-21ksoftirqd/109:10:031
18703993732,3cyclictest9-21ksoftirqd/008:25:110
18703993731,4cyclictest9-21ksoftirqd/011:55:120
18703993731,4cyclictest9-21ksoftirqd/010:00:000
18703993731,3cyclictest9-21ksoftirqd/009:45:000
18703993731,3cyclictest9-21ksoftirqd/009:19:590
18703993722,3cyclictest9-21ksoftirqd/009:10:010
18707993631,3cyclictest41-21ksoftirqd/312:10:123
18707993631,3cyclictest41-21ksoftirqd/310:24:103
18707993630,4cyclictest41-21ksoftirqd/312:36:413
18707993630,4cyclictest41-21ksoftirqd/311:41:453
18707993630,4cyclictest41-21ksoftirqd/309:22:443
18707993630,4cyclictest41-21ksoftirqd/309:04:393
18707993630,4cyclictest41-21ksoftirqd/309:04:393
18706993631,3cyclictest33-21ksoftirqd/207:30:262
18706993630,4cyclictest33-21ksoftirqd/210:57:352
18706993630,4cyclictest33-21ksoftirqd/208:20:452
18706993630,4cyclictest33-21ksoftirqd/207:49:012
18705993633,2cyclictest25-21ksoftirqd/111:45:001
18705993631,3cyclictest25-21ksoftirqd/107:35:011
18705993630,4cyclictest25-21ksoftirqd/111:04:491
18705993630,4cyclictest25-21ksoftirqd/110:38:251
18705993630,3cyclictest25-21ksoftirqd/112:30:211
18705993630,3cyclictest25-21ksoftirqd/108:55:141
1870599361,2cyclictest121rcu_preempt12:21:231
18703993632,2cyclictest9-21ksoftirqd/007:59:590
18703993631,3cyclictest9-21ksoftirqd/010:09:590
18703993630,4cyclictest9-21ksoftirqd/009:48:000
18703993629,4cyclictest9-21ksoftirqd/007:46:340
41298350,2rtkit-daemon411-21rtkit-daemon12:32:490
18707993531,3cyclictest41-21ksoftirqd/309:58:143
18707993531,3cyclictest41-21ksoftirqd/309:09:203
18707993530,3cyclictest41-21ksoftirqd/310:03:153
18707993529,4cyclictest41-21ksoftirqd/311:18:343
18707993529,4cyclictest41-21ksoftirqd/310:33:023
18707993529,4cyclictest41-21ksoftirqd/310:06:543
18707993529,4cyclictest41-21ksoftirqd/308:53:533
18707993529,4cyclictest41-21ksoftirqd/308:48:473
18707993529,4cyclictest41-21ksoftirqd/308:06:423
18707993529,4cyclictest41-21ksoftirqd/307:59:493
18706993529,4cyclictest33-21ksoftirqd/212:34:472
18706993529,4cyclictest33-21ksoftirqd/212:15:042
18706993529,4cyclictest33-21ksoftirqd/212:15:032
18706993529,4cyclictest33-21ksoftirqd/208:45:522
18706993529,4cyclictest33-21ksoftirqd/207:36:202
1870699352,28cyclictest0-21swapper/211:45:122
18706993512,20cyclictest22717-21cut10:40:192
1870699350,4cyclictest20879-21ls07:15:002
18705993530,3cyclictest25-21ksoftirqd/111:48:131
18705993530,3cyclictest25-21ksoftirqd/108:34:211
18705993530,3cyclictest25-21ksoftirqd/108:10:181
18705993530,3cyclictest25-21ksoftirqd/107:10:201
18705993529,4cyclictest25-21ksoftirqd/107:39:171
18705993529,3cyclictest25-21ksoftirqd/109:15:191
18705993528,4cyclictest25-21ksoftirqd/110:57:021
18705993528,4cyclictest25-21ksoftirqd/110:42:021
18703993531,3cyclictest9-21ksoftirqd/011:25:130
18703993530,3cyclictest9-21ksoftirqd/012:27:230
18703993530,3cyclictest9-21ksoftirqd/011:40:170
18703993530,3cyclictest9-21ksoftirqd/011:04:150
18703993530,3cyclictest9-21ksoftirqd/010:05:000
18703993529,4cyclictest9-21ksoftirqd/010:59:420
18703993529,4cyclictest9-21ksoftirqd/010:29:580
18703993529,4cyclictest9-21ksoftirqd/007:24:070
18703993528,4cyclictest9-21ksoftirqd/008:42:020
1870399350,2cyclictest121rcu_preempt12:20:240
18707993429,3cyclictest41-21ksoftirqd/312:00:583
18707993428,4cyclictest41-21ksoftirqd/310:38:033
18707993428,4cyclictest41-21ksoftirqd/308:16:503
18707993415,15cyclictest23243-21latency_hist07:19:593
1870699346,25cyclictest28668-21sed08:35:272
18706993430,3cyclictest33-21ksoftirqd/210:01:142
18706993429,3cyclictest33-21ksoftirqd/209:55:132
1870699341,3cyclictest7951-21/usr/sbin/munin07:55:222
18706993411,20cyclictest22495-21awk09:30:282
18706993410,21cyclictest10555-21tune2fs10:15:162
1870699340,4cyclictest31549-21apt08:45:012
1870699340,3cyclictest32544-21chrt09:53:412
1870699340,3cyclictest143182sleep210:21:132
18705993429,3cyclictest25-21ksoftirqd/111:56:551
18705993429,3cyclictest25-21ksoftirqd/111:10:191
18705993429,3cyclictest25-21ksoftirqd/110:29:261
18705993429,3cyclictest25-21ksoftirqd/108:25:201
18705993429,3cyclictest25-21ksoftirqd/108:25:001
18705993429,3cyclictest25-21ksoftirqd/107:47:451
18705993429,3cyclictest25-21ksoftirqd/107:30:011
18705993428,4cyclictest25-21ksoftirqd/112:08:181
18705993428,4cyclictest25-21ksoftirqd/112:02:051
18705993428,4cyclictest25-21ksoftirqd/110:46:101
18705993428,4cyclictest25-21ksoftirqd/109:23:261
18705993428,4cyclictest25-21ksoftirqd/107:44:181
18705993428,3cyclictest25-21ksoftirqd/111:20:001
18703993430,3cyclictest9-21ksoftirqd/010:40:190
18703993430,2cyclictest9-21ksoftirqd/012:35:190
18703993430,2cyclictest9-21ksoftirqd/011:50:000
18703993429,3cyclictest9-21ksoftirqd/011:54:050
18703993429,3cyclictest9-21ksoftirqd/011:20:000
18703993429,3cyclictest9-21ksoftirqd/010:12:070
18703993429,3cyclictest9-21ksoftirqd/009:20:220
18703993429,3cyclictest9-21ksoftirqd/007:50:120
18703993429,3cyclictest9-21ksoftirqd/007:40:000
18703993428,4cyclictest9-21ksoftirqd/012:12:310
18703993428,4cyclictest9-21ksoftirqd/007:15:190
18703993428,3cyclictest9-21ksoftirqd/011:15:000
139291340,1ptp4l0-21swapper/308:39:273
18707993328,3cyclictest41-21ksoftirqd/311:38:583
18707993328,3cyclictest41-21ksoftirqd/308:13:413
18707993328,3cyclictest41-21ksoftirqd/307:20:103
18707993327,4cyclictest41-21ksoftirqd/312:19:283
18707993327,4cyclictest41-21ksoftirqd/312:19:283
18707993327,4cyclictest41-21ksoftirqd/311:00:503
18707993327,4cyclictest41-21ksoftirqd/310:51:343
18707993312,18cyclictest30527-21/usr/sbin/munin09:50:203
1870799330,3cyclictest15879-21sshd11:33:143
1870699337,23cyclictest0-21swapper/211:20:102
18706993328,3cyclictest33-21ksoftirqd/212:14:172
18706993328,3cyclictest33-21ksoftirqd/210:13:142
18706993328,3cyclictest33-21ksoftirqd/209:20:142
18706993328,3cyclictest33-21ksoftirqd/208:05:122
18706993327,4cyclictest33-21ksoftirqd/209:07:312
18706993326,5cyclictest27936-21ls09:45:002
18706993313,18cyclictest13899-21/usr/sbin/munin11:30:232
1870699331,30cyclictest8438-21awk11:20:002
1870699330,4cyclictest17269-21sh08:15:012
1870699330,3cyclictest1195-21sort07:40:172
18705993328,3cyclictest25-21ksoftirqd/112:29:121
18705993328,3cyclictest25-21ksoftirqd/111:54:371
18705993328,3cyclictest25-21ksoftirqd/110:25:001
18705993328,3cyclictest25-21ksoftirqd/109:48:461
18705993328,3cyclictest25-21ksoftirqd/109:35:001
18705993328,2cyclictest25-21ksoftirqd/109:55:191
18705993327,4cyclictest25-21ksoftirqd/110:03:311
18705993327,4cyclictest25-21ksoftirqd/108:43:511
18705993327,3cyclictest25-21ksoftirqd/112:35:191
18705993327,3cyclictest25-21ksoftirqd/107:15:061
18703993328,3cyclictest9-21ksoftirqd/010:47:020
18703993328,3cyclictest9-21ksoftirqd/007:28:410
18703993327,4cyclictest9-21ksoftirqd/011:09:440
18703993327,4cyclictest9-21ksoftirqd/010:17:180
18703993316,4cyclictest9-21ksoftirqd/011:20:120
1870399330,2cyclictest121rcu_preempt08:35:130
18707993227,3cyclictest41-21ksoftirqd/310:42:293
18707993227,3cyclictest41-21ksoftirqd/310:12:153
18707993227,3cyclictest41-21ksoftirqd/309:40:273
18707993226,4cyclictest41-21ksoftirqd/311:24:203
18707993226,4cyclictest41-21ksoftirqd/309:12:223
18707993213,16cyclictest5296-21/usr/sbin/munin12:20:223
18707993213,16cyclictest14240-21hwlatdetect09:15:173
1870699329,20cyclictest3375-21timerwakeupswit08:50:262
1870699329,20cyclictest16756-21fschecks_time11:35:142
1870699328,22cyclictest3667-21ls11:10:002
1870699321,2cyclictest217-21systemd-journal09:02:162
1870699321,2cyclictest217-21systemd-journal09:02:162
1870699320,3cyclictest19389-21latency_hist10:35:002
1870699320,3cyclictest11414-21cat11:25:002
1870699320,29cyclictest21884-21cat10:39:592
18705993227,3cyclictest25-21ksoftirqd/112:14:581
18705993227,3cyclictest25-21ksoftirqd/111:26:421
18705993227,3cyclictest25-21ksoftirqd/109:50:121
18705993227,3cyclictest25-21ksoftirqd/109:05:571
18705993227,3cyclictest25-21ksoftirqd/108:37:331
18705993227,3cyclictest25-21ksoftirqd/107:50:251
18705993226,3cyclictest25-21ksoftirqd/107:24:591
18703993228,3cyclictest9-21ksoftirqd/008:24:590
18703993228,2cyclictest9-21ksoftirqd/007:30:200
18703993227,3cyclictest9-21ksoftirqd/012:02:450
18703993227,3cyclictest9-21ksoftirqd/010:35:420
18703993227,3cyclictest9-21ksoftirqd/010:22:140
18703993227,3cyclictest9-21ksoftirqd/007:44:050
18703993226,4cyclictest9-21ksoftirqd/008:54:370
18703993226,3cyclictest9-21ksoftirqd/008:01:030
18703993217,4cyclictest9-21ksoftirqd/008:20:000
18707993126,3cyclictest41-21ksoftirqd/311:49:363
18707993126,3cyclictest41-21ksoftirqd/310:28:563
18707993125,4cyclictest41-21ksoftirqd/308:28:163
18707993111,16cyclictest6038-21cut07:50:143
18706993126,3cyclictest33-21ksoftirqd/211:56:232
18706993125,4cyclictest33-21ksoftirqd/210:48:282
18706993125,4cyclictest33-21ksoftirqd/208:17:292
18706993111,18cyclictest28857-21latency_hist10:55:012
1870699310,28cyclictest5582-21/usr/sbin/munin07:50:222
18705993125,3cyclictest25-21ksoftirqd/108:05:131
1870599310,3cyclictest121rcu_preempt11:35:001
18703993126,3cyclictest9-21ksoftirqd/011:35:110
18703993126,3cyclictest9-21ksoftirqd/009:14:430
18703993124,4cyclictest9-21ksoftirqd/007:15:000
18707993024,4cyclictest41-21ksoftirqd/312:26:193
18707993024,4cyclictest41-21ksoftirqd/312:09:583
1870799301,24cyclictest3233-21apt-get07:45:123
1870799300,3cyclictest117682sleep308:00:253
1870799300,2cyclictest22160-21ptp4l-jitter09:30:253
1870699305,23cyclictest50792irq/128-enp1s0-09:17:182
18706993024,4cyclictest33-21ksoftirqd/209:12:482
1870699302,25cyclictest0-21swapper/207:20:122
18705993024,3cyclictest25-21ksoftirqd/108:45:131
18703993027,2cyclictest9-21ksoftirqd/010:50:190
18703993024,4cyclictest9-21ksoftirqd/012:16:210
18703993024,4cyclictest9-21ksoftirqd/012:16:200
18703993024,4cyclictest9-21ksoftirqd/009:31:370
18707992924,3cyclictest41-21ksoftirqd/307:40:123
1870699291,4cyclictest7008-21grep10:05:262
1870699291,3cyclictest0-21swapper/211:00:142
18705992924,3cyclictest25-21ksoftirqd/112:18:011
18705992924,3cyclictest25-21ksoftirqd/112:18:011
18705992924,3cyclictest25-21ksoftirqd/110:30:541
18705992924,3cyclictest25-21ksoftirqd/108:19:591
18703992925,2cyclictest9-21ksoftirqd/008:55:130
18703992924,3cyclictest9-21ksoftirqd/009:30:000
1870799281,4cyclictest29438-21tail07:30:243
1870799281,24cyclictest18458-21/usr/sbin/munin09:25:153
18705992824,2cyclictest25-21ksoftirqd/110:15:151
1870799276,19cyclictest20039-21cut08:20:133
18707992722,3cyclictest41-21ksoftirqd/308:56:273
18707992721,3cyclictest41-21ksoftirqd/311:56:543
18703992723,2cyclictest9-21ksoftirqd/009:05:010
18703992723,2cyclictest9-21ksoftirqd/009:05:010
18703992722,3cyclictest9-21ksoftirqd/011:30:380
18703992722,3cyclictest9-21ksoftirqd/009:53:530
18705992419,3cyclictest25-21ksoftirqd/111:05:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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