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2026-08-27 - 04:56
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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 Thu Aug 27, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1901622000,13sleep20-21swapper/221:27:512
1068911000,3ptp4l401ktimersoftd/321:31:083
106891900,11ptp4l401ktimersoftd/302:01:253
186012860,5sleep118602-21idleruntime-cro01:17:291
193672690,4sleep21982799cyclictest23:37:452
132822670,1sleep30-21swapper/301:44:013
106891670,1ptp4l401ktimersoftd/323:37:443
169842620,4sleep01981199cyclictest01:47:510
106891610,1ptp4l401ktimersoftd/301:17:543
106891590,1ptp4l401ktimersoftd/323:50:553
69702580,2sleep20-21swapper/200:31:492
69702580,2sleep20-21swapper/200:31:492
106891580,1ptp4l401ktimersoftd/302:10:213
106891580,1ptp4l401ktimersoftd/302:10:213
106891570,1ptp4l401ktimersoftd/300:33:193
187692560,2sleep00-21swapper/000:42:510
271972530,3sleep11981699cyclictest02:32:411
188632530,2sleep30-21swapper/322:32:543
188632530,2sleep30-21swapper/322:32:543
265182520,2sleep10-21swapper/102:32:011
245082480,4sleep124511-21latency_hist22:47:251
245082480,4sleep124511-21latency_hist22:47:251
106891460,0ptp4l401ktimersoftd/302:58:063
106891450,2ptp4l31891-21kworker/3:000:56:373
106891440,1ptp4l401ktimersoftd/302:04:053
106891440,1ptp4l401ktimersoftd/301:00:533
106891430,1ptp4l401ktimersoftd/302:26:353
19816994231,5cyclictest25-21ksoftirqd/123:22:381
19816994034,4cyclictest25-21ksoftirqd/101:57:411
106891390,1ptp4l401ktimersoftd/301:48:003
106891390,1ptp4l401ktimersoftd/300:44:253
106891390,1ptp4l401ktimersoftd/300:17:123
185302383,20sleep117579-21/usr/sbin/munin21:27:431
106891380,2ptp4l31891-21kworker/3:001:07:003
106891380,1ptp4l401ktimersoftd/323:57:353
106891380,1ptp4l401ktimersoftd/323:37:243
106891380,1ptp4l401ktimersoftd/302:57:143
106891380,1ptp4l401ktimersoftd/302:39:233
106891380,1ptp4l401ktimersoftd/301:34:543
19827993715,19cyclictest13218-21sh01:43:542
19827993714,20cyclictest14855-21sh00:06:402
19827993713,20cyclictest1414-21entropy01:32:432
19827993712,22cyclictest14872-21sed23:32:452
19827993712,21cyclictest10697-21tail22:17:452
106891370,1ptp4l401ktimersoftd/323:02:413
106891370,1ptp4l401ktimersoftd/302:28:393
106891370,1ptp4l401ktimersoftd/302:21:173
106891370,1ptp4l401ktimersoftd/301:57:293
106891370,1ptp4l401ktimersoftd/301:38:233
106891370,1ptp4l401ktimersoftd/301:31:483
106891370,1ptp4l401ktimersoftd/300:49:363
106891370,1ptp4l401ktimersoftd/300:26:083
106891370,1ptp4l401ktimersoftd/300:26:083
106891370,1ptp4l401ktimersoftd/300:08:593
106891370,1ptp4l401ktimersoftd/300:02:503
19827993611,22cyclictest26818-21apt22:52:252
106891360,1ptp4l401ktimersoftd/302:52:213
106891360,1ptp4l401ktimersoftd/302:43:313
106891360,1ptp4l401ktimersoftd/301:24:353
19827993514,18cyclictest31102-21sh23:49:132
19827993514,18cyclictest22366-21sh03:00:342
19827993514,18cyclictest20709-21sh00:45:222
19827993512,20cyclictest24724-21awk21:37:522
19827993512,19cyclictest21093-21cat21:32:432
19827993511,20cyclictest27058-21basename22:52:362
19827993510,21cyclictest8951-21latency_hist02:47:312
106891350,1ptp4l401ktimersoftd/301:15:003
106891350,1ptp4l401ktimersoftd/300:28:093
106891350,1ptp4l401ktimersoftd/300:28:093
1982799348,5cyclictest8934-21cat01:07:292
1982799348,3cyclictest22485-21grep22:42:392
1982799348,3cyclictest22485-21grep22:42:392
19827993414,17cyclictest9941-21sh02:14:072
19827993414,17cyclictest13366-21diskmemload00:07:442
19827993413,18cyclictest30878-21sh02:36:092
19827993410,4cyclictest17641-21gltestperf22:32:412
19827993410,4cyclictest17641-21gltestperf22:32:412
19827993410,3cyclictest12003-21bc22:22:332
106891340,2ptp4l22217-21kworker/3:123:43:393
106891340,1ptp4l401ktimersoftd/323:16:253
106891340,1ptp4l401ktimersoftd/301:09:383
106891340,1ptp4l401ktimersoftd/300:39:343
106891340,0ptp4l401ktimersoftd/321:47:313
7212330,4sleep21982799cyclictest00:24:222
7212330,4sleep21982799cyclictest00:24:222
1982799338,4cyclictest16264-21if_enp1s0.101:47:472
1982799338,3cyclictest10494-21sed23:22:552
1982799336,24cyclictest10530-21latency_hist00:02:272
1982799332,5cyclictest19003-21apt-get01:17:402
19827993316,14cyclictest25934-21sed21:42:382
19827993314,16cyclictest23170-21sh01:54:232
19827993314,16cyclictest23061-21sh00:14:022
19827993312,18cyclictest15881-21sh02:21:032
19827993312,18cyclictest13064-21sh01:11:192
19827993311,3cyclictest29937-21head22:57:422
19827993310,3cyclictest18657-21latency_hist01:17:292
1982799330,5cyclictest18309-21rm02:22:492
106891330,1ptp4l401ktimersoftd/302:33:523
1982799329,3cyclictest13366-21diskmemload02:37:312
1982799327,3cyclictest4028-21sed22:03:002
1982799322,6cyclictest14180-21apt-get02:52:402
19827993212,3cyclictest321ktimersoftd/200:17:392
19827993212,3cyclictest321ktimersoftd/200:17:392
19827993212,17cyclictest1055-21runrttasks21:51:322
19827993212,16cyclictest723-21latency_hist01:32:302
19827993211,18cyclictest27178-21sh23:45:532
19827993211,17cyclictest8616-21latency_hist23:22:272
19827993210,3cyclictest32581-21sed23:02:432
106891320,1ptp4l401ktimersoftd/323:52:323
106891320,1ptp4l401ktimersoftd/321:57:223
106891320,1ptp4l401ktimersoftd/302:14:153
106891320,1ptp4l401ktimersoftd/300:21:203
106891320,1ptp4l401ktimersoftd/300:21:203
106891320,0ptp4l401ktimersoftd/323:27:563
106891320,0ptp4l401ktimersoftd/322:23:543
106891320,0ptp4l401ktimersoftd/322:01:573
1982799319,4cyclictest25275-21/usr/sbin/munin01:57:522
1982799319,3cyclictest13351-21irqrtprio00:37:482
1982799318,4cyclictest11652-21sh02:48:482
1982799318,3cyclictest30417-1kworker/u9:100:55:302
1982799316,8cyclictest19937-21cpuspeed_turbos22:37:382
1982799316,4cyclictest22775-21gltestperf00:47:442
1982799313,6cyclictest0-21swapper/200:32:402
19827993113,15cyclictest27860-21sh01:26:442
19827993111,3cyclictest24689-21sh02:29:052
1982799310,2cyclictest0-21swapper/201:37:422
19816993125,3cyclictest25-21ksoftirqd/101:47:291
19811993126,3cyclictest9-21ksoftirqd/002:57:310
1452913124,3phc2sys41-21ksoftirqd/322:47:523
106891310,1ptp4l401ktimersoftd/322:15:043
263462300,3sleep01981199cyclictest00:51:460
1982799308,3cyclictest15274-21irqrtprio22:27:452
1982799305,4cyclictest11630-21fschecks_count23:27:442
1982799304,5cyclictest3130-21gltestperf02:07:462
1982799304,5cyclictest3130-21gltestperf02:07:462
1982799302,5cyclictest3158-21snmp_o5powerctl23:07:512
19827993011,3cyclictest32293-21sh02:03:242
1958623010,8sleep00-21swapper/021:30:530
92912290,3sleep0111rcuc/001:40:320
1982799298,3cyclictest31561-21snmp_o5powerctl21:52:512
1982799297,4cyclictest5044-21runrttasks23:56:422
1982799296,4cyclictest4982-21irqrtprio23:12:442
1982799296,3cyclictest9317-21taskset22:17:132
19816992924,3cyclictest25-21ksoftirqd/100:32:281
19816992924,3cyclictest25-21ksoftirqd/100:32:281
19816992924,3cyclictest25-21ksoftirqd/100:27:271
19816992924,3cyclictest25-21ksoftirqd/100:27:271
19816992923,3cyclictest25-21ksoftirqd/123:02:261
19816992923,3cyclictest25-21ksoftirqd/121:47:431
19816992923,3cyclictest25-21ksoftirqd/101:07:381
19811992924,3cyclictest9-21ksoftirqd/002:57:430
106891290,1ptp4l401ktimersoftd/322:31:483
106891290,0ptp4l401ktimersoftd/322:42:253
1982799287,3cyclictest47150irq/102-ens3-Tx22:07:552
1982799280,9cyclictest32690-21tr00:57:462
19816992823,3cyclictest25-21ksoftirqd/123:42:471
19816992823,3cyclictest25-21ksoftirqd/122:37:251
19816992823,3cyclictest25-21ksoftirqd/122:37:251
19816992823,3cyclictest25-21ksoftirqd/121:42:391
19816992823,3cyclictest25-21ksoftirqd/102:47:311
19816992823,3cyclictest25-21ksoftirqd/102:37:431
19816992823,3cyclictest25-21ksoftirqd/101:02:451
19816992822,3cyclictest25-21ksoftirqd/121:57:371
19816992822,3cyclictest25-21ksoftirqd/101:37:301
19811992823,3cyclictest9-21ksoftirqd/000:02:400
106891280,1ptp4l401ktimersoftd/321:41:183
106891280,0ptp4l401ktimersoftd/323:11:183
2061622720,3sleep125-21ksoftirqd/102:25:271
19833992720,4cyclictest41-21ksoftirqd/321:46:413
1982799270,10cyclictest1740-21unixbench-2d21:57:532
19816992722,3cyclictest25-21ksoftirqd/101:52:441
19816992721,3cyclictest25-21ksoftirqd/123:05:121
19811992721,3cyclictest9-21ksoftirqd/022:30:400
19811992721,2cyclictest9-21ksoftirqd/001:12:570
19811992720,4cyclictest9-21ksoftirqd/021:58:340
106891270,0ptp4l401ktimersoftd/322:07:453
324742260,2sleep032480-21gltestperf00:57:450
19833992619,4cyclictest41-21ksoftirqd/323:25:093
19833992619,4cyclictest41-21ksoftirqd/322:56:103
19816992621,3cyclictest25-21ksoftirqd/123:56:541
19816992621,3cyclictest25-21ksoftirqd/122:57:251
19816992621,3cyclictest25-21ksoftirqd/101:47:411
19816992620,4cyclictest25-21ksoftirqd/122:02:501
19816992620,3cyclictest25-21ksoftirqd/123:17:381
19816992620,3cyclictest25-21ksoftirqd/102:02:481
19811992621,3cyclictest9-21ksoftirqd/002:27:470
19811992620,3cyclictest9-21ksoftirqd/000:07:420
19811992613,4cyclictest9-21ksoftirqd/000:37:440
19811992610,9cyclictest46950irq/100-ens3-Tx00:12:390
106891260,1ptp4l401ktimersoftd/323:18:303
19816992520,3cyclictest25-21ksoftirqd/100:02:431
19816992519,3cyclictest25-21ksoftirqd/101:22:571
19816992519,3cyclictest25-21ksoftirqd/100:37:281
19816992518,4cyclictest25-21ksoftirqd/123:12:591
19816992518,4cyclictest25-21ksoftirqd/122:39:181
19816992518,4cyclictest25-21ksoftirqd/122:14:201
19816992517,5cyclictest19185-21grep23:37:431
19811992520,3cyclictest9-21ksoftirqd/002:32:500
19811992519,3cyclictest9-21ksoftirqd/023:29:100
19811992519,3cyclictest9-21ksoftirqd/021:56:220
19811992518,4cyclictest9-21ksoftirqd/021:43:010
19811992518,4cyclictest9-21ksoftirqd/021:36:060
19811992513,9cyclictest13675-21/usr/sbin/munin23:32:470
106891250,1ptp4l401ktimersoftd/321:36:283
19833992415,5cyclictest2921-21grep22:02:483
19816992419,3cyclictest25-21ksoftirqd/121:37:241
19816992419,3cyclictest25-21ksoftirqd/102:47:451
19816992419,3cyclictest25-21ksoftirqd/100:47:281
19816992419,3cyclictest25-21ksoftirqd/100:42:281
19816992419,3cyclictest25-21ksoftirqd/100:07:471
19816992418,3cyclictest25-21ksoftirqd/123:32:471
19816992417,4cyclictest25-21ksoftirqd/123:07:501
19816992417,4cyclictest25-21ksoftirqd/122:52:111
19816992417,4cyclictest25-21ksoftirqd/121:53:421
19811992419,3cyclictest9-21ksoftirqd/001:02:450
19811992418,3cyclictest9-21ksoftirqd/022:59:130
19811992418,3cyclictest9-21ksoftirqd/022:39:030
19811992418,3cyclictest9-21ksoftirqd/022:27:240
19811992418,3cyclictest9-21ksoftirqd/002:48:220
19811992417,4cyclictest9-21ksoftirqd/022:49:130
19811992417,4cyclictest9-21ksoftirqd/022:45:160
19811992417,4cyclictest9-21ksoftirqd/022:45:160
106891240,1ptp4l401ktimersoftd/322:57:553
106891240,1ptp4l401ktimersoftd/322:42:543
106891240,1ptp4l401ktimersoftd/322:42:543
106891240,1ptp4l401ktimersoftd/322:17:543
19816992317,4cyclictest25-21ksoftirqd/100:22:281
19816992317,4cyclictest25-21ksoftirqd/100:22:281
19816992317,3cyclictest25-21ksoftirqd/122:27:371
19816992317,3cyclictest25-21ksoftirqd/101:37:491
19816992317,3cyclictest22762-21cut21:37:281
19816992316,4cyclictest28461-21ptp4l00:52:501
19816992316,4cyclictest25-21ksoftirqd/122:07:311
19816992316,4cyclictest25-21ksoftirqd/103:02:241
19816992316,4cyclictest25-21ksoftirqd/101:28:531
19811992318,3cyclictest9-21ksoftirqd/023:23:100
19811992318,3cyclictest9-21ksoftirqd/023:02:400
19811992318,3cyclictest23877-21kworker/0:202:02:580
19811992317,3cyclictest9-21ksoftirqd/022:37:000
19811992317,3cyclictest9-21ksoftirqd/022:37:000
19811992317,3cyclictest9-21ksoftirqd/021:40:480
19811992317,3cyclictest7354-21idleruntime-cro00:32:270
19811992317,3cyclictest7354-21idleruntime-cro00:32:270
19811992316,4cyclictest9-21ksoftirqd/022:55:230
19811992316,4cyclictest9-21ksoftirqd/002:09:590
19811992316,4cyclictest9-21ksoftirqd/002:09:590
1981699227,9cyclictest7463-21ssh02:12:431
1981699222,6cyclictest12298-21apt-get02:17:421
19816992217,3cyclictest25-21ksoftirqd/123:51:501
19816992216,3cyclictest25-21ksoftirqd/123:57:531
19816992216,3cyclictest25-21ksoftirqd/122:26:171
19816992215,4cyclictest25-21ksoftirqd/123:28:401
19811992217,3cyclictest9-21ksoftirqd/023:21:190
19811992217,3cyclictest9-21ksoftirqd/002:17:490
19811992217,3cyclictest9-21ksoftirqd/001:52:490
19811992217,3cyclictest9-21ksoftirqd/001:27:450
19811992216,3cyclictest9-21ksoftirqd/023:39:030
19811992216,3cyclictest9-21ksoftirqd/002:42:460
19811992216,3cyclictest9-21ksoftirqd/002:01:560
1981199221,4cyclictest23796-21ssh01:22:390
19816992114,4cyclictest2911-21sh01:00:341
19816992114,4cyclictest25924-21ssh00:51:021
19816992113,5cyclictest19585-21if_enp1s0.101:17:461
19816992111,5cyclictest3170-21idleruntime02:07:471
19816992111,5cyclictest3170-21idleruntime02:07:471
1981199214,8cyclictest25437-21ssh00:17:400
1981199214,8cyclictest25437-21ssh00:17:400
19811992115,3cyclictest9-21ksoftirqd/001:17:400
19811992114,5cyclictest9-21ksoftirqd/023:57:430
19811992114,4cyclictest1055-21runrttasks00:25:440
19811992114,4cyclictest1055-21runrttasks00:25:440
127172210,17sleep00-21swapper/001:43:020
1981699203,12cyclictest20610-21apt-get00:12:401
19816992014,3cyclictest25-21ksoftirqd/122:17:431
19816992013,4cyclictest15983-21awk02:52:581
19811992014,3cyclictest9-21ksoftirqd/022:19:010
19811992014,3cyclictest4104-21/usr/sbin/munin23:12:460
19811992014,3cyclictest1055-21runrttasks02:41:080
19811992013,4cyclictest9-21ksoftirqd/023:11:570
19811992013,4cyclictest28053-21cat21:47:380
19811992013,4cyclictest27449-21entropy00:52:430
19811992013,4cyclictest2672-21cat01:32:550
19811992013,4cyclictest25285-21sed23:42:570
19811992013,4cyclictest17522-21cstates02:22:430
19811991913,4cyclictest9-21ksoftirqd/022:08:340
19811991913,4cyclictest13366-21diskmemload01:08:500
19811991913,3cyclictest8724-21timerandwakeup22:12:530
19811991913,3cyclictest2502-21bc22:02:350
19811991912,4cyclictest13366-21diskmemload02:14:400
19811991912,4cyclictest1198-21expr23:52:410
19811991911,5cyclictest8488-21sed00:32:460
1981199183,4cyclictest28639-21cpuspeed_turbos23:47:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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