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2025-12-28 - 19:46
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Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackbslot6.osadl.org (updated Sun Dec 28, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1277621630,4sleep32404399cyclictest11:04:053
2860821510,3sleep32404399cyclictest11:20:513
1068911020,3ptp4l401ktimersoftd/307:15:213
1068911020,3ptp4l401ktimersoftd/307:15:213
70421010,3sleep20-21swapper/210:49:142
70421010,3sleep20-21swapper/210:49:142
327102790,2sleep30-21swapper/312:39:163
106891780,2ptp4l401ktimersoftd/310:42:293
106891700,1ptp4l401ktimersoftd/312:44:433
106891670,1ptp4l401ktimersoftd/311:30:453
24032996659,4cyclictest25-21ksoftirqd/111:49:081
182992660,2sleep30-21swapper/311:45:403
30452640,2sleep30-21swapper/312:04:433
106891630,1ptp4l401ktimersoftd/307:54:183
221052610,3sleep09-21ksoftirqd/010:37:200
152732580,5sleep32404399cyclictest09:14:093
106891570,1ptp4l401ktimersoftd/311:35:543
106891560,1ptp4l401ktimersoftd/310:53:433
106891560,1ptp4l401ktimersoftd/310:53:433
106891560,1ptp4l401ktimersoftd/308:29:153
24032995545,5cyclictest25-21ksoftirqd/112:24:101
24032995545,5cyclictest25-21ksoftirqd/112:24:101
231412550,2sleep10-21swapper/110:01:121
106891550,1ptp4l401ktimersoftd/310:21:323
201812540,4sleep12403299cyclictest09:21:251
106891540,1ptp4l401ktimersoftd/310:07:273
138402530,2sleep22403899cyclictest12:18:472
9762510,2sleep10-21swapper/108:44:081
2403899515,9cyclictest30712-21cstates11:24:082
24038995121,11cyclictest33-21ksoftirqd/211:49:152
236292504,33sleep20-21swapper/207:14:552
236292504,33sleep20-21swapper/207:14:552
24043994938,5cyclictest41-21ksoftirqd/309:44:053
106891490,1ptp4l401ktimersoftd/308:23:303
24038994711,5cyclictest33-21ksoftirqd/207:41:162
24038994621,9cyclictest33-21ksoftirqd/211:14:242
24038994613,5cyclictest33-21ksoftirqd/208:19:342
24038994611,5cyclictest33-21ksoftirqd/212:27:102
24038994611,5cyclictest33-21ksoftirqd/212:27:102
24038994610,5cyclictest33-21ksoftirqd/209:07:472
24038994610,5cyclictest33-21ksoftirqd/209:07:472
24038994610,5cyclictest33-21ksoftirqd/207:32:372
24032994635,5cyclictest25-21ksoftirqd/109:49:041
24032994633,7cyclictest25-21ksoftirqd/108:09:041
24038994512,5cyclictest33-21ksoftirqd/207:48:472
24038994510,5cyclictest33-21ksoftirqd/211:03:592
2403899449,6cyclictest33-21ksoftirqd/210:24:162
2403899443,18cyclictest33-21ksoftirqd/211:31:192
2403899438,5cyclictest33-21ksoftirqd/209:13:172
24038994320,10cyclictest33-21ksoftirqd/210:04:122
2403899426,6cyclictest33-21ksoftirqd/209:50:382
2403899420,14cyclictest8407-21timedrift11:34:232
2352024220,11sleep125-21ksoftirqd/107:14:221
2352024220,11sleep125-21ksoftirqd/107:14:221
2403899417,6cyclictest33-21ksoftirqd/208:54:202
2403899417,5cyclictest33-21ksoftirqd/208:35:072
106891410,2ptp4l4566-21kworker/3:010:48:173
106891410,2ptp4l4566-21kworker/3:010:48:173
24038994017,8cyclictest33-21ksoftirqd/210:34:112
24038993919,10cyclictest33-21ksoftirqd/207:34:092
24038993918,9cyclictest33-21ksoftirqd/212:19:142
2403899387,5cyclictest33-21ksoftirqd/209:37:162
2403899384,5cyclictest33-21ksoftirqd/212:09:562
24038993820,10cyclictest33-21ksoftirqd/209:54:052
24038993816,9cyclictest33-21ksoftirqd/209:19:072
24038993815,7cyclictest33-21ksoftirqd/209:43:582
106891380,1ptp4l401ktimersoftd/312:29:313
106891380,1ptp4l401ktimersoftd/312:29:313
106891380,1ptp4l401ktimersoftd/311:13:433
106891380,1ptp4l401ktimersoftd/309:19:223
106891380,0ptp4l401ktimersoftd/312:15:573
2403899375,5cyclictest33-21ksoftirqd/212:31:042
2403899375,5cyclictest33-21ksoftirqd/212:31:042
2403899375,5cyclictest33-21ksoftirqd/211:57:012
2403899375,5cyclictest33-21ksoftirqd/211:20:312
2403899375,5cyclictest33-21ksoftirqd/210:16:572
24038993719,10cyclictest33-21ksoftirqd/210:23:532
24038993715,8cyclictest33-21ksoftirqd/210:41:182
2403899370,6cyclictest33-21ksoftirqd/212:05:142
24032993727,5cyclictest25-21ksoftirqd/108:19:011
106891370,1ptp4l401ktimersoftd/312:27:153
106891370,1ptp4l401ktimersoftd/312:27:153
106891370,1ptp4l401ktimersoftd/312:21:353
106891370,1ptp4l401ktimersoftd/310:32:463
106891370,1ptp4l401ktimersoftd/309:59:103
106891370,1ptp4l401ktimersoftd/309:26:593
106891370,1ptp4l401ktimersoftd/308:44:033
106891370,1ptp4l401ktimersoftd/307:39:163
2403899363,5cyclictest33-21ksoftirqd/210:09:272
2403899363,5cyclictest33-21ksoftirqd/209:26:342
2403899362,5cyclictest33-21ksoftirqd/210:54:442
24038993619,4cyclictest33-21ksoftirqd/210:44:172
24038993619,4cyclictest33-21ksoftirqd/210:44:172
24038993611,5cyclictest33-21ksoftirqd/210:29:072
24032993626,4cyclictest25-21ksoftirqd/107:59:011
24032993624,6cyclictest25-21ksoftirqd/112:19:091
106891360,2ptp4l4566-21kworker/3:008:58:513
106891360,1ptp4l401ktimersoftd/311:49:143
106891360,1ptp4l401ktimersoftd/311:27:503
106891360,1ptp4l401ktimersoftd/310:14:043
106891360,1ptp4l401ktimersoftd/309:39:023
106891360,1ptp4l401ktimersoftd/309:10:183
106891360,1ptp4l401ktimersoftd/308:51:403
106891360,13ptp4l401ktimersoftd/308:34:103
106891360,0ptp4l401ktimersoftd/311:40:573
106891360,0ptp4l401ktimersoftd/311:15:283
40132350,2sleep1241ktimersoftd/108:49:101
316102350,3sleep32404399cyclictest08:39:163
2403899357,5cyclictest33-21ksoftirqd/209:30:562
2403899355,6cyclictest33-21ksoftirqd/208:16:102
2403899355,5cyclictest33-21ksoftirqd/212:00:232
2403899354,5cyclictest33-21ksoftirqd/212:42:592
2403899352,4cyclictest33-21ksoftirqd/209:41:342
2403899351,5cyclictest33-21ksoftirqd/211:10:002
24032993530,3cyclictest25-21ksoftirqd/112:48:561
24032993529,3cyclictest25-21ksoftirqd/112:09:191
24032993522,10cyclictest25-21ksoftirqd/112:39:141
106891350,0ptp4l401ktimersoftd/310:26:253
2403899344,5cyclictest33-21ksoftirqd/212:36:222
2403899342,5cyclictest33-21ksoftirqd/210:59:432
24032993429,3cyclictest25-21ksoftirqd/110:49:111
24032993429,3cyclictest25-21ksoftirqd/110:49:111
24032993429,3cyclictest25-21ksoftirqd/110:48:531
24032993429,3cyclictest25-21ksoftirqd/110:48:531
24032993428,3cyclictest25-21ksoftirqd/110:38:531
24032993425,4cyclictest25-21ksoftirqd/111:39:071
106891340,1ptp4l401ktimersoftd/310:53:553
106891340,1ptp4l401ktimersoftd/310:08:543
106891340,1ptp4l401ktimersoftd/309:48:573
106891340,12ptp4l401ktimersoftd/311:00:453
2403899337,5cyclictest33-21ksoftirqd/207:49:052
24038993329,2cyclictest311rcuc/211:43:542
24038993317,7cyclictest33-21ksoftirqd/207:24:192
24038993314,10cyclictest33-21ksoftirqd/207:59:072
24032993327,4cyclictest25-21ksoftirqd/107:28:491
24032993327,3cyclictest25-21ksoftirqd/111:34:111
24032993323,5cyclictest25-21ksoftirqd/108:34:021
223832332,18sleep021804-21/usr/sbin/munin07:14:080
223832332,18sleep021804-21/usr/sbin/munin07:14:080
106891330,1ptp4l401ktimersoftd/312:02:073
106891330,1ptp4l401ktimersoftd/310:34:033
106891330,1ptp4l401ktimersoftd/309:56:053
2403899323,6cyclictest33-21ksoftirqd/212:44:532
24038993212,8cyclictest33-21ksoftirqd/208:24:082
24032993226,3cyclictest25-21ksoftirqd/110:54:081
24032993226,3cyclictest25-21ksoftirqd/109:34:081
24032993226,3cyclictest25-21ksoftirqd/107:49:071
24032993225,4cyclictest25-21ksoftirqd/109:29:121
24032993224,4cyclictest25-21ksoftirqd/108:29:041
106891320,1ptp4l401ktimersoftd/312:37:583
106891320,1ptp4l401ktimersoftd/307:21:513
24032993125,3cyclictest25-21ksoftirqd/112:14:091
24032993125,3cyclictest25-21ksoftirqd/111:24:081
24032993125,3cyclictest25-21ksoftirqd/110:28:531
24032993125,3cyclictest25-21ksoftirqd/109:44:121
106891310,1ptp4l401ktimersoftd/311:57:173
106891310,1ptp4l401ktimersoftd/308:05:213
106891310,1ptp4l401ktimersoftd/307:31:163
253842300,3sleep02402699cyclictest09:28:030
24038993026,2cyclictest311rcuc/209:59:062
24038993025,3cyclictest33-21ksoftirqd/211:44:092
24038993014,7cyclictest33-21ksoftirqd/208:59:072
24032993025,3cyclictest25-21ksoftirqd/111:44:061
24032993025,3cyclictest25-21ksoftirqd/109:04:061
24032993025,3cyclictest25-21ksoftirqd/109:04:061
24032993024,3cyclictest25-21ksoftirqd/110:59:091
24032993024,3cyclictest25-21ksoftirqd/110:33:531
24032993024,3cyclictest25-21ksoftirqd/109:39:081
24032993024,3cyclictest25-21ksoftirqd/108:04:211
24032993017,10cyclictest25-21ksoftirqd/108:59:191
2403299300,3cyclictest121rcu_preempt10:04:221
24026993025,3cyclictest9-21ksoftirqd/012:08:550
106891300,1ptp4l401ktimersoftd/307:48:383
24043992924,3cyclictest41-21ksoftirqd/312:09:173
24043992923,3cyclictest41-21ksoftirqd/307:28:493
24038992912,6cyclictest33-21ksoftirqd/208:41:282
24038992910,7cyclictest33-21ksoftirqd/208:52:462
24032992924,3cyclictest25-21ksoftirqd/111:54:081
24032992924,3cyclictest25-21ksoftirqd/109:54:051
24032992924,3cyclictest25-21ksoftirqd/109:24:101
24032992924,3cyclictest25-21ksoftirqd/107:58:501
24032992924,3cyclictest25-21ksoftirqd/107:33:491
24032992923,3cyclictest25-21ksoftirqd/112:29:081
24032992923,3cyclictest25-21ksoftirqd/112:29:081
24032992923,3cyclictest25-21ksoftirqd/111:59:231
24032992923,3cyclictest25-21ksoftirqd/110:19:121
24032992923,3cyclictest25-21ksoftirqd/110:09:131
24032992923,3cyclictest25-21ksoftirqd/108:54:221
24032992921,4cyclictest25-21ksoftirqd/112:34:101
24026992920,6cyclictest9-21ksoftirqd/010:24:120
205962290,2sleep00-21swapper/011:49:110
106891290,1ptp4l401ktimersoftd/309:35:433
106891290,0ptp4l401ktimersoftd/309:04:163
106891290,0ptp4l401ktimersoftd/309:04:163
24038992812,6cyclictest33-21ksoftirqd/208:04:022
24032992823,3cyclictest25-21ksoftirqd/111:29:071
24032992823,3cyclictest25-21ksoftirqd/110:39:101
24032992823,3cyclictest25-21ksoftirqd/107:19:021
24032992822,4cyclictest25-21ksoftirqd/111:09:081
24032992822,3cyclictest25-21ksoftirqd/112:04:151
24032992822,3cyclictest25-21ksoftirqd/111:18:541
24032992822,3cyclictest25-21ksoftirqd/110:14:081
24032992822,3cyclictest25-21ksoftirqd/108:14:081
24032992822,3cyclictest25-21ksoftirqd/107:48:491
24032992816,3cyclictest25-21ksoftirqd/111:04:071
24026992822,3cyclictest9-21ksoftirqd/011:38:550
24038992710,9cyclictest33-21ksoftirqd/208:44:092
24032992721,3cyclictest25-21ksoftirqd/111:23:551
24032992721,3cyclictest25-21ksoftirqd/109:18:521
24032992721,3cyclictest25-21ksoftirqd/107:43:491
24026992721,3cyclictest9-21ksoftirqd/010:50:330
24026992721,3cyclictest9-21ksoftirqd/010:50:330
24026992721,3cyclictest9-21ksoftirqd/010:08:530
106891270,5ptp4l401ktimersoftd/307:49:123
106891270,0ptp4l401ktimersoftd/308:00:593
24043992621,3cyclictest41-21ksoftirqd/308:28:503
24043992621,3cyclictest41-21ksoftirqd/308:14:053
24043992621,3cyclictest41-21ksoftirqd/308:09:113
2403899266,8cyclictest33-21ksoftirqd/209:18:492
2403899265,6cyclictest33-21ksoftirqd/207:58:102
24038992622,2cyclictest311rcuc/208:30:432
24038992619,4cyclictest33-21ksoftirqd/208:13:382
24032992622,3cyclictest25-21ksoftirqd/108:39:131
24032992620,3cyclictest25-21ksoftirqd/109:13:511
24026992621,3cyclictest9-21ksoftirqd/007:23:430
24026992620,3cyclictest9-21ksoftirqd/009:12:530
24026992620,3cyclictest9-21ksoftirqd/007:55:030
24026992619,4cyclictest9-21ksoftirqd/007:30:480
24026992613,7cyclictest101ktimersoftd/008:39:080
24043992519,3cyclictest41-21ksoftirqd/307:38:493
2403899253,8cyclictest33-21ksoftirqd/207:19:052
24032992519,3cyclictest25-21ksoftirqd/108:27:381
24026992520,3cyclictest9-21ksoftirqd/008:27:570
24026992519,3cyclictest9-21ksoftirqd/010:56:190
24026992519,3cyclictest9-21ksoftirqd/008:37:400
24032992418,3cyclictest25-21ksoftirqd/107:33:591
24026992420,3cyclictest9-21ksoftirqd/008:54:090
24026992418,3cyclictest9-21ksoftirqd/008:46:020
24026992418,3cyclictest30990-1kworker/u9:212:09:170
24026992417,4cyclictest9-21ksoftirqd/009:00:570
24026992417,4cyclictest9-21ksoftirqd/008:20:300
24026992417,4cyclictest9-21ksoftirqd/008:03:160
24026992417,4cyclictest9-21ksoftirqd/007:49:590
24026992417,4cyclictest5869-21find07:44:150
106891240,1ptp4l401ktimersoftd/309:29:153
106891240,1ptp4l401ktimersoftd/308:59:033
24026992318,3cyclictest9-21ksoftirqd/007:28:390
24026992317,3cyclictest9-21ksoftirqd/008:18:200
24026992316,4cyclictest21804-21tr11:14:090
24026992217,3cyclictest9-21ksoftirqd/012:14:120
24026992217,3cyclictest9-21ksoftirqd/009:58:340
24026992217,3cyclictest9-21ksoftirqd/009:17:270
24026992216,3cyclictest9-21ksoftirqd/009:04:460
24026992216,3cyclictest9-21ksoftirqd/009:04:460
24026992216,3cyclictest9-21ksoftirqd/007:34:410
24026992216,3cyclictest4012-21cut12:44:120
24026992216,3cyclictest26522-21munin-node11:24:060
24026992216,3cyclictest13881-21memory11:04:140
24026992214,5cyclictest31252-21tail09:34:080
24026992213,3cyclictest9-21ksoftirqd/010:44:250
24026992213,3cyclictest9-21ksoftirqd/010:44:250
2402699220,20cyclictest0-21swapper/012:33:220
2402699220,20cyclictest0-21swapper/012:33:220
24026992116,3cyclictest9-21ksoftirqd/011:03:540
2402699211,4cyclictest24179-21irqstats10:39:120
2402699211,4cyclictest18627-21ssh12:24:090
2402699211,4cyclictest18627-21ssh12:24:090
24026992114,4cyclictest9-21ksoftirqd/007:42:080
24026992114,4cyclictest26255-21grep08:29:070
2402699210,17cyclictest18676-21wc08:13:500
2402699203,15cyclictest6998-21wc10:19:180
2402699201,6cyclictest0-21swapper/012:39:160
24026992014,4cyclictest26476-21sh09:29:070
24026992014,3cyclictest9-21ksoftirqd/008:08:060
24026992013,4cyclictest2994-21unixbench_singl10:14:220
24026992013,4cyclictest18301-21turbostat.cron12:23:550
2402699200,3cyclictest19254-21ssh11:09:440
2402699200,18cyclictest0-21swapper/010:13:030
2402699198,9cyclictest6493-21awk11:33:550
24026991914,3cyclictest28559-1kworker/u9:211:45:090
24026991913,3cyclictest9-21ksoftirqd/008:48:590
24026991913,3cyclictest24950-21sh11:54:070
24026991913,3cyclictest10335-21sh09:47:030
24026991913,3cyclictest10223-1kworker/u9:009:22:310
24026991912,4cyclictest16941-21diskmemload09:59:130
24026991912,4cyclictest16941-21diskmemload09:38:570
24026991912,4cyclictest13010-21sendmail_mailtr09:49:150
24026991912,4cyclictest11681-21expr11:39:090
24026991911,5cyclictest26217-21cpuspeed_turbos11:19:090
2402699190,3cyclictest29124-21timerandwakeup12:34:260
24026991812,3cyclictest30447-21mailstats11:59:170
24026991812,3cyclictest16941-21diskmemload10:30:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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