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2026-08-04 - 10:27
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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 Tue Aug 04, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3214121610,1sleep20-21swapper/201:19:372
106891980,6ptp4l16339-21kworker/3:021:16:083
170982924,24sleep017219-21hddtemp_smartct21:15:000
106891760,14ptp4l401ktimersoftd/300:19:153
116432670,2sleep20-21swapper/202:36:342
106891660,1ptp4l401ktimersoftd/301:02:303
305362640,4sleep11889699cyclictest22:49:571
248442640,4sleep1241ktimersoftd/122:35:111
1777726330,19sleep117848-21phc2sys21:15:051
18903996225,6cyclictest33-21ksoftirqd/202:45:062
86572610,2sleep30-21swapper/323:48:403
187702604,10sleep20-21swapper/221:19:342
106891600,1ptp4l401ktimersoftd/300:32:173
60322580,5sleep36034-21unixbench_multi21:55:273
215102580,4sleep341-21ksoftirqd/302:46:263
106891570,1ptp4l401ktimersoftd/301:24:583
106891550,1ptp4l401ktimersoftd/322:16:093
18903995432,3cyclictest33-21ksoftirqd/201:25:042
18903995423,6cyclictest33-21ksoftirqd/202:24:502
18903995423,6cyclictest33-21ksoftirqd/202:24:502
18903995321,11cyclictest33-21ksoftirqd/202:20:112
18903995321,11cyclictest33-21ksoftirqd/202:20:112
18903995243,4cyclictest33-21ksoftirqd/200:40:012
18903995224,10cyclictest33-21ksoftirqd/223:55:182
18903995222,6cyclictest33-21ksoftirqd/202:40:112
1890399521,9cyclictest4119-21apt21:54:432
84482510,2sleep28449-21switchtime02:00:162
18903995122,10cyclictest33-21ksoftirqd/202:10:192
178142510,2sleep10-21swapper/123:57:381
18903994921,6cyclictest33-21ksoftirqd/202:34:492
18903994921,10cyclictest33-21ksoftirqd/202:15:122
18903994920,5cyclictest33-21ksoftirqd/221:55:162
18903994920,5cyclictest33-21ksoftirqd/201:20:112
18903994920,10cyclictest33-21ksoftirqd/221:34:582
18903994920,10cyclictest33-21ksoftirqd/201:45:052
1890399487,3cyclictest33-21ksoftirqd/221:34:432
1890399483,6cyclictest33-21ksoftirqd/223:44:462
18903994821,6cyclictest33-21ksoftirqd/200:24:462
18903994820,5cyclictest33-21ksoftirqd/221:19:572
18903994820,5cyclictest33-21ksoftirqd/201:04:472
18903994819,5cyclictest33-21ksoftirqd/201:10:062
18903994819,10cyclictest33-21ksoftirqd/223:35:142
18903994818,7cyclictest33-21ksoftirqd/200:49:472
59182470,2sleep20-21swapper/201:58:482
256082470,1sleep30-21swapper/323:32:223
18903994734,3cyclictest33-21ksoftirqd/202:09:482
18903994732,3cyclictest33-21ksoftirqd/223:27:252
18903994719,6cyclictest33-21ksoftirqd/200:35:172
18903994719,6cyclictest33-21ksoftirqd/200:35:172
18903994719,16cyclictest33-21ksoftirqd/222:30:012
1890399470,6cyclictest33-21ksoftirqd/200:05:022
1890399464,6cyclictest33-21ksoftirqd/200:00:022
18903994634,3cyclictest33-21ksoftirqd/200:34:472
18903994624,9cyclictest33-21ksoftirqd/200:25:062
18903994619,6cyclictest33-21ksoftirqd/221:59:562
18903994619,10cyclictest33-21ksoftirqd/221:40:022
18903994618,11cyclictest33-21ksoftirqd/201:40:182
18903994618,10cyclictest33-21ksoftirqd/223:19:582
18903994618,10cyclictest33-21ksoftirqd/221:44:592
18903994617,10cyclictest33-21ksoftirqd/200:54:552
106891460,1ptp4l401ktimersoftd/301:13:163
1890399456,3cyclictest33-21ksoftirqd/200:10:072
1890399455,7cyclictest33-21ksoftirqd/223:05:082
1890399455,7cyclictest33-21ksoftirqd/222:35:042
1890399455,6cyclictest33-21ksoftirqd/223:50:002
1890399454,6cyclictest33-21ksoftirqd/201:30:182
18903994521,4cyclictest33-21ksoftirqd/201:09:312
18903994520,4cyclictest33-21ksoftirqd/223:30:082
18903994517,10cyclictest33-21ksoftirqd/222:10:142
18903994517,10cyclictest33-21ksoftirqd/200:15:122
18903994516,8cyclictest33-21ksoftirqd/201:39:022
18896994538,4cyclictest2746-21sh22:59:441
1890399442,5cyclictest33-21ksoftirqd/222:25:142
18903994417,9cyclictest33-21ksoftirqd/223:10:032
18903994417,11cyclictest33-21ksoftirqd/222:19:592
1890399436,8cyclictest33-21ksoftirqd/222:45:032
1890399436,8cyclictest33-21ksoftirqd/222:45:032
1890399434,7cyclictest33-21ksoftirqd/223:00:032
18903994327,9cyclictest33-21ksoftirqd/222:15:012
18903994315,10cyclictest33-21ksoftirqd/223:46:442
18903994314,10cyclictest33-21ksoftirqd/201:52:282
106891430,0ptp4l401ktimersoftd/301:58:333
1890399426,3cyclictest33-21ksoftirqd/222:40:012
18903994235,4cyclictest33-21ksoftirqd/222:54:492
18903994231,4cyclictest33-21ksoftirqd/222:04:562
18903994221,9cyclictest33-21ksoftirqd/223:14:592
1890399414,7cyclictest33-21ksoftirqd/221:29:422
18903994013,9cyclictest33-21ksoftirqd/200:52:042
1890399391,2cyclictest121rcu_preempt22:49:592
106891390,1ptp4l401ktimersoftd/323:50:243
106891390,1ptp4l401ktimersoftd/323:44:393
106891390,1ptp4l401ktimersoftd/323:22:183
106891390,1ptp4l401ktimersoftd/302:31:573
106891390,1ptp4l401ktimersoftd/301:15:213
106891390,1ptp4l401ktimersoftd/300:50:013
106891390,1ptp4l401ktimersoftd/300:20:333
106891380,1ptp4l401ktimersoftd/323:27:423
106891380,1ptp4l401ktimersoftd/302:42:263
106891380,1ptp4l401ktimersoftd/302:10:343
106891380,1ptp4l401ktimersoftd/302:06:403
106891380,1ptp4l401ktimersoftd/301:47:573
106891380,1ptp4l401ktimersoftd/301:29:503
106891380,1ptp4l401ktimersoftd/301:05:193
106891380,1ptp4l401ktimersoftd/300:11:323
152042370,5sleep115203-21memory02:40:101
106891370,2ptp4l29153-21kworker/3:200:55:213
106891370,1ptp4l401ktimersoftd/323:04:593
106891370,1ptp4l401ktimersoftd/302:26:153
106891370,1ptp4l401ktimersoftd/302:26:153
106891370,1ptp4l401ktimersoftd/302:15:143
106891370,1ptp4l401ktimersoftd/301:50:363
106891370,1ptp4l401ktimersoftd/301:36:213
106891370,1ptp4l401ktimersoftd/301:20:063
106891370,1ptp4l401ktimersoftd/300:00:213
106891370,0ptp4l401ktimersoftd/300:47:493
106891360,1ptp4l401ktimersoftd/323:56:483
106891360,1ptp4l401ktimersoftd/322:55:183
106891360,1ptp4l401ktimersoftd/322:24:083
106891360,1ptp4l401ktimersoftd/321:24:553
106891360,1ptp4l401ktimersoftd/302:20:143
106891360,1ptp4l401ktimersoftd/302:20:143
106891360,1ptp4l401ktimersoftd/300:29:353
106891350,3ptp4l25949-21kworker/3:002:01:433
106891350,1ptp4l401ktimersoftd/302:39:103
106891350,1ptp4l401ktimersoftd/300:41:153
106891350,1ptp4l401ktimersoftd/300:38:403
106891350,1ptp4l401ktimersoftd/300:38:403
106891350,0ptp4l401ktimersoftd/300:06:313
18896993428,3cyclictest25-21ksoftirqd/122:14:541
106891340,0ptp4l401ktimersoftd/323:37:503
106891330,1ptp4l401ktimersoftd/321:35:033
18889993226,3cyclictest9-21ksoftirqd/023:19:580
18889993226,3cyclictest9-21ksoftirqd/002:39:500
106891320,0ptp4l401ktimersoftd/321:33:173
18896993125,3cyclictest25-21ksoftirqd/102:05:061
18896993123,6cyclictest24250-21latency_hist21:29:421
106891310,1ptp4l401ktimersoftd/323:02:283
106891310,1ptp4l401ktimersoftd/322:47:493
106891310,1ptp4l401ktimersoftd/322:47:493
106891310,1ptp4l401ktimersoftd/321:48:173
106891310,1ptp4l401ktimersoftd/301:43:063
106891310,0ptp4l401ktimersoftd/322:41:043
18896993025,3cyclictest25-21ksoftirqd/123:54:461
18896993024,3cyclictest25-21ksoftirqd/102:10:081
18896993024,3cyclictest25-21ksoftirqd/101:45:181
18896993023,4cyclictest25-21ksoftirqd/122:19:541
18889993025,3cyclictest9-21ksoftirqd/001:29:480
106891300,0ptp4l401ktimersoftd/322:37:303
106891300,0ptp4l401ktimersoftd/321:51:133
316732290,3sleep30-21swapper/321:44:433
210712291,4sleep121295-21/usr/sbin/munin00:00:161
18896992924,3cyclictest25-21ksoftirqd/123:39:451
18896992924,3cyclictest25-21ksoftirqd/102:45:071
18896992924,3cyclictest25-21ksoftirqd/102:25:071
18896992924,3cyclictest25-21ksoftirqd/102:25:071
18896992923,3cyclictest25-21ksoftirqd/121:24:431
18896992923,3cyclictest25-21ksoftirqd/100:25:051
1888999297,6cyclictest9-21ksoftirqd/023:49:460
18889992924,3cyclictest9-21ksoftirqd/000:59:470
18889992923,3cyclictest9-21ksoftirqd/000:29:460
106891290,1ptp4l401ktimersoftd/322:12:473
18896992823,3cyclictest25-21ksoftirqd/122:44:551
18896992823,3cyclictest25-21ksoftirqd/122:44:551
18896992823,3cyclictest25-21ksoftirqd/100:59:481
18896992822,3cyclictest25-21ksoftirqd/123:19:561
18896992822,3cyclictest25-21ksoftirqd/100:24:461
18889992823,3cyclictest9-21ksoftirqd/002:20:070
18889992823,3cyclictest9-21ksoftirqd/002:20:070
18889992823,3cyclictest9-21ksoftirqd/001:54:480
1889699273,3cyclictest121rcu_preempt23:10:111
18896992723,3cyclictest25-21ksoftirqd/122:29:431
18896992722,3cyclictest25-21ksoftirqd/123:44:461
18896992722,3cyclictest25-21ksoftirqd/121:55:171
18896992721,3cyclictest25-21ksoftirqd/123:09:451
18896992721,3cyclictest25-21ksoftirqd/100:35:081
18896992721,3cyclictest25-21ksoftirqd/100:35:081
18896992720,4cyclictest25-21ksoftirqd/121:30:021
18889992722,3cyclictest9-21ksoftirqd/001:45:080
18889992722,3cyclictest9-21ksoftirqd/000:34:460
18889992721,4cyclictest9-21ksoftirqd/021:55:150
18889992721,3cyclictest9-21ksoftirqd/022:29:580
18889992721,3cyclictest9-21ksoftirqd/000:20:050
18889992721,3cyclictest9-21ksoftirqd/000:00:070
106891270,0ptp4l401ktimersoftd/322:54:163
106891270,0ptp4l401ktimersoftd/322:01:263
18910992619,4cyclictest41-21ksoftirqd/321:20:223
18896992621,3cyclictest25-21ksoftirqd/102:34:491
18896992621,3cyclictest25-21ksoftirqd/101:54:491
18896992621,3cyclictest25-21ksoftirqd/101:39:481
18896992621,3cyclictest25-21ksoftirqd/101:15:061
18896992621,3cyclictest25-21ksoftirqd/100:19:461
18896992620,3cyclictest25-21ksoftirqd/101:29:481
18896992619,3cyclictest25-21ksoftirqd/123:45:381
18896992618,4cyclictest10893-21sed02:35:191
18896992617,7cyclictest25-21ksoftirqd/100:49:471
18896992615,8cyclictest0-21swapper/100:55:031
18889992621,3cyclictest9-21ksoftirqd/002:10:060
18889992620,3cyclictest9-21ksoftirqd/000:50:060
18889992619,4cyclictest9-21ksoftirqd/021:49:100
18889992619,4cyclictest31565-21cron21:44:430
18910992519,3cyclictest41-21ksoftirqd/323:18:023
18910992518,4cyclictest41-21ksoftirqd/322:28:113
18896992520,3cyclictest25-21ksoftirqd/121:44:431
18896992520,3cyclictest25-21ksoftirqd/101:44:491
18896992520,3cyclictest25-21ksoftirqd/101:30:111
18896992520,3cyclictest25-21ksoftirqd/101:10:021
18896992520,3cyclictest25-21ksoftirqd/100:50:051
18896992519,3cyclictest25-21ksoftirqd/102:15:031
18896992519,3cyclictest25-21ksoftirqd/101:54:211
18896992519,3cyclictest25-21ksoftirqd/100:10:021
18896992518,4cyclictest25-21ksoftirqd/122:02:321
18896992518,4cyclictest25-21ksoftirqd/121:54:211
18889992520,3cyclictest9-21ksoftirqd/021:24:420
18889992520,3cyclictest9-21ksoftirqd/002:40:100
18889992520,3cyclictest9-21ksoftirqd/001:40:170
18889992520,3cyclictest9-21ksoftirqd/001:20:060
18889992520,3cyclictest9-21ksoftirqd/000:19:460
18889992519,3cyclictest9-21ksoftirqd/023:12:230
18889992512,10cyclictest12239-21diskmemload23:53:130
18910992417,4cyclictest41-21ksoftirqd/322:34:333
18896992419,3cyclictest25-21ksoftirqd/122:39:571
18896992418,4cyclictest25-21ksoftirqd/121:46:461
18896992418,3cyclictest25-21ksoftirqd/123:34:461
18896992418,3cyclictest25-21ksoftirqd/102:04:481
18896992418,3cyclictest10568-21grep23:15:021
18896992416,5cyclictest26698-21sed00:40:061
18889992419,3cyclictest9-21ksoftirqd/023:55:060
18889992419,3cyclictest9-21ksoftirqd/022:28:170
18889992419,3cyclictest9-21ksoftirqd/021:35:010
18889992419,3cyclictest9-21ksoftirqd/001:14:590
18889992419,3cyclictest9-21ksoftirqd/000:09:450
18889992418,3cyclictest9-21ksoftirqd/022:45:180
18889992418,3cyclictest9-21ksoftirqd/022:45:180
18889992418,3cyclictest9-21ksoftirqd/022:12:500
18889992418,3cyclictest9-21ksoftirqd/002:00:040
18889992417,4cyclictest9-21ksoftirqd/022:18:530
106891240,1ptp4l401ktimersoftd/323:09:583
106891240,1ptp4l401ktimersoftd/322:05:083
18896992319,3cyclictest231rcuc/100:05:001
18896992318,3cyclictest25-21ksoftirqd/122:59:531
18896992318,3cyclictest25-21ksoftirqd/122:09:581
18896992318,3cyclictest25-21ksoftirqd/101:09:481
18896992318,3cyclictest25-21ksoftirqd/100:29:581
18889992318,3cyclictest9-21ksoftirqd/023:35:150
18889992318,3cyclictest9-21ksoftirqd/023:00:020
18889992317,3cyclictest9-21ksoftirqd/023:18:500
18889992317,3cyclictest9-21ksoftirqd/023:05:160
18889992317,3cyclictest9-21ksoftirqd/001:39:480
18889992316,4cyclictest9-21ksoftirqd/022:21:420
18889992316,4cyclictest9-21ksoftirqd/021:34:320
18896992217,3cyclictest25-21ksoftirqd/123:24:581
18896992217,3cyclictest25-21ksoftirqd/101:20:011
18896992216,3cyclictest25-21ksoftirqd/102:20:011
18896992216,3cyclictest25-21ksoftirqd/102:20:011
18896992215,4cyclictest25-21ksoftirqd/122:07:211
18896992215,4cyclictest25-21ksoftirqd/121:38:231
18889992217,3cyclictest9-21ksoftirqd/002:30:140
18889992217,3cyclictest9-21ksoftirqd/001:00:190
18889992217,3cyclictest9-21ksoftirqd/000:45:040
18889992217,3cyclictest20034-21kworker/u8:002:26:230
18889992217,3cyclictest20034-21kworker/u8:002:26:230
18889992214,3cyclictest9-21ksoftirqd/001:55:100
199572210,2sleep00-21swapper/023:26:090
18896992116,3cyclictest25-21ksoftirqd/122:30:041
18889992117,3cyclictest9-21ksoftirqd/001:07:100
18889992116,3cyclictest9-21ksoftirqd/023:39:590
18889992116,3cyclictest9-21ksoftirqd/023:30:030
18889992116,3cyclictest9-21ksoftirqd/022:34:590
18889992116,3cyclictest9-21ksoftirqd/002:15:130
18889992116,3cyclictest9-21ksoftirqd/001:30:020
18889992116,3cyclictest9-21ksoftirqd/000:10:340
1580522114,3sleep09-21ksoftirqd/002:09:070
67322200,3sleep09-21ksoftirqd/021:59:540
18889992014,3cyclictest9-21ksoftirqd/022:50:560
18889992014,3cyclictest9-21ksoftirqd/021:28:260
18889992014,3cyclictest22862-21/usr/sbin/munin01:10:080
18889992013,4cyclictest1047-21fschecks_time22:55:010
1888999201,16cyclictest12239-21diskmemload00:35:010
1888999201,16cyclictest12239-21diskmemload00:35:010
18889991913,3cyclictest9-21ksoftirqd/021:51:350
18889991913,3cyclictest26051-21forks22:39:590
18889991912,4cyclictest19477-21gltestperf02:45:050
1888999190,16cyclictest26056-21tr00:40:010
18889991812,3cyclictest1055-21runrttasks22:05:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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