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2026-03-21 - 09:22
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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 376 highest latencies:
System rackbslot6.osadl.org (updated Sat Mar 21, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911040,4ptp4l401ktimersoftd/320:03:363
223752660,5sleep0146999cyclictest01:16:370
11372614,10sleep20-21swapper/220:01:382
56482570,2sleep00-21swapper/022:48:220
1469995745,6cyclictest9-21ksoftirqd/000:54:510
106891570,1ptp4l401ktimersoftd/322:31:293
106891570,1ptp4l401ktimersoftd/320:19:383
106891570,1ptp4l401ktimersoftd/301:07:103
46122560,3sleep14603-21gpgv00:59:401
197062560,3sleep319707-21ptp4l23:34:583
1469995647,4cyclictest9-21ksoftirqd/020:44:450
1488995517,5cyclictest41-21ksoftirqd/323:44:573
106891550,1ptp4l401ktimersoftd/322:11:263
152342540,2sleep10-21swapper/123:30:101
1488995442,4cyclictest41-21ksoftirqd/323:04:493
1488995442,4cyclictest41-21ksoftirqd/323:04:493
1469995443,4cyclictest9-21ksoftirqd/020:54:460
1469995443,4cyclictest9-21ksoftirqd/001:29:510
1469995441,6cyclictest9-21ksoftirqd/020:49:470
1469995345,4cyclictest9-21ksoftirqd/000:34:510
1469995141,4cyclictest9-21ksoftirqd/000:59:510
1469995140,5cyclictest9-21ksoftirqd/020:14:440
1469994942,4cyclictest9-21ksoftirqd/020:29:450
1469994928,3cyclictest9-21ksoftirqd/023:00:040
1469994928,3cyclictest9-21ksoftirqd/023:00:040
1488994830,3cyclictest41-21ksoftirqd/301:15:013
1469994843,3cyclictest9-21ksoftirqd/000:09:430
1488994716,7cyclictest41-21ksoftirqd/323:11:293
106891470,2ptp4l30459-21kworker/3:222:26:073
1488994622,4cyclictest41-21ksoftirqd/320:15:003
1469994637,4cyclictest9-21ksoftirqd/021:44:460
1469994637,4cyclictest9-21ksoftirqd/020:04:430
148899456,10cyclictest41-21ksoftirqd/322:18:053
1488994521,4cyclictest41-21ksoftirqd/322:59:533
1488994521,4cyclictest41-21ksoftirqd/322:59:533
1488994518,4cyclictest41-21ksoftirqd/322:45:293
106891450,1ptp4l401ktimersoftd/300:04:433
1488994435,4cyclictest41-21ksoftirqd/321:59:403
1488994430,3cyclictest41-21ksoftirqd/323:29:033
1488994430,11cyclictest41-21ksoftirqd/322:24:363
1488994426,6cyclictest41-21ksoftirqd/300:10:083
1488994420,4cyclictest41-21ksoftirqd/323:40:033
1488994420,4cyclictest41-21ksoftirqd/321:55:033
1488994414,8cyclictest41-21ksoftirqd/321:50:043
1469994438,3cyclictest9-21ksoftirqd/000:04:430
1469994418,16cyclictest9-21ksoftirqd/020:59:460
1469994417,4cyclictest9-21ksoftirqd/020:24:330
106891440,1ptp4l401ktimersoftd/321:31:213
106891440,1ptp4l401ktimersoftd/321:22:353
106891440,1ptp4l401ktimersoftd/321:22:353
106891440,0ptp4l401ktimersoftd/320:29:553
1488994323,3cyclictest41-21ksoftirqd/322:39:293
148899430,4cyclictest121rcu_preempt23:24:373
1469994321,6cyclictest9-21ksoftirqd/000:52:190
1469994321,6cyclictest9-21ksoftirqd/000:52:190
1488994232,4cyclictest41-21ksoftirqd/320:24:453
1488994230,7cyclictest41-21ksoftirqd/320:09:333
1488994228,3cyclictest41-21ksoftirqd/320:10:013
1488994220,7cyclictest41-21ksoftirqd/301:30:023
1488994220,4cyclictest41-21ksoftirqd/320:40:023
1488994218,4cyclictest41-21ksoftirqd/300:24:573
1488994213,7cyclictest41-21ksoftirqd/300:35:013
1488994122,8cyclictest41-21ksoftirqd/321:25:023
1488994117,4cyclictest41-21ksoftirqd/323:14:443
1488994116,4cyclictest41-21ksoftirqd/300:42:033
1488994113,5cyclictest41-21ksoftirqd/323:59:383
148899410,5cyclictest41-21ksoftirqd/301:19:583
148899410,3cyclictest121rcu_preempt00:14:433
1480994133,5cyclictest3791-21turbostat20:09:332
1469994132,4cyclictest9-21ksoftirqd/023:34:490
146999413,10cyclictest9-21ksoftirqd/000:20:070
1469994124,7cyclictest9-21ksoftirqd/022:50:050
1469994121,5cyclictest9-21ksoftirqd/000:45:080
146999410,4cyclictest121rcu_preempt23:20:060
1488994034,3cyclictest41-21ksoftirqd/323:54:383
1488994034,3cyclictest41-21ksoftirqd/322:49:413
148899402,3cyclictest41-21ksoftirqd/322:55:003
1488994017,4cyclictest41-21ksoftirqd/323:31:273
1488994017,4cyclictest41-21ksoftirqd/321:39:533
1488994015,4cyclictest41-21ksoftirqd/300:33:533
1469994027,10cyclictest9-21ksoftirqd/022:55:060
1488993915,4cyclictest41-21ksoftirqd/300:53:473
1488993915,4cyclictest41-21ksoftirqd/300:53:473
1488993915,4cyclictest41-21ksoftirqd/300:22:023
1488993914,4cyclictest41-21ksoftirqd/301:12:213
1488993912,4cyclictest41-21ksoftirqd/301:03:033
148899390,6cyclictest41-21ksoftirqd/323:59:503
1469993931,4cyclictest9-21ksoftirqd/021:59:400
1469993924,3cyclictest9-21ksoftirqd/000:24:570
1469993921,8cyclictest9-21ksoftirqd/023:44:380
1469993920,4cyclictest9-21ksoftirqd/023:11:400
146999390,3cyclictest121rcu_preempt01:20:080
106891390,1ptp4l401ktimersoftd/301:29:163
308352380,4sleep09-21ksoftirqd/022:07:190
148899383,7cyclictest41-21ksoftirqd/320:59:513
1488993815,4cyclictest41-21ksoftirqd/320:45:013
1488993815,4cyclictest41-21ksoftirqd/300:45:073
1488993814,4cyclictest41-21ksoftirqd/300:57:133
1469993824,11cyclictest9-21ksoftirqd/022:20:040
1469993820,7cyclictest9-21ksoftirqd/021:19:350
1469993814,17cyclictest9-21ksoftirqd/023:04:500
1469993814,17cyclictest9-21ksoftirqd/023:04:500
257802370,2sleep20-21swapper/223:09:042
257802370,2sleep20-21swapper/223:09:042
1488993723,3cyclictest41-21ksoftirqd/321:09:503
1488993718,8cyclictest41-21ksoftirqd/320:35:023
1488993715,4cyclictest41-21ksoftirqd/321:39:353
1488993714,3cyclictest41-21ksoftirqd/321:06:333
1488993713,4cyclictest41-21ksoftirqd/322:40:513
1488993713,4cyclictest41-21ksoftirqd/321:15:003
1469993725,10cyclictest9-21ksoftirqd/000:15:070
146999372,3cyclictest9-21ksoftirqd/001:04:540
1469993718,5cyclictest9-21ksoftirqd/021:09:560
1469993717,3cyclictest9-21ksoftirqd/000:29:530
1469993716,7cyclictest9-21ksoftirqd/022:34:590
1469993713,4cyclictest9-21ksoftirqd/000:04:160
1469993710,4cyclictest9-21ksoftirqd/000:40:030
1488993623,10cyclictest41-21ksoftirqd/320:54:513
148899361,8cyclictest41-21ksoftirqd/320:54:333
146999368,4cyclictest9-21ksoftirqd/023:46:380
146999365,7cyclictest9-21ksoftirqd/021:29:550
1469993625,3cyclictest9-21ksoftirqd/022:09:460
1469993620,5cyclictest9-21ksoftirqd/023:49:570
1469993617,7cyclictest9-21ksoftirqd/001:25:170
1469993616,8cyclictest9-21ksoftirqd/023:24:500
1469993612,4cyclictest9-21ksoftirqd/023:55:150
1469993612,4cyclictest9-21ksoftirqd/022:17:270
106891360,1ptp4l401ktimersoftd/322:08:263
1469993530,2cyclictest9-21ksoftirqd/022:29:490
1469993529,3cyclictest9-21ksoftirqd/020:04:330
1469993523,3cyclictest9-21ksoftirqd/021:24:530
1469993517,3cyclictest9-21ksoftirqd/022:24:500
1469993511,4cyclictest9-21ksoftirqd/001:09:470
1469993510,4cyclictest9-21ksoftirqd/022:39:510
129023517,8sleep10-21swapper/120:03:391
146999346,4cyclictest121rcu_preempt21:54:520
1469993429,3cyclictest9-21ksoftirqd/023:14:480
1469993427,5cyclictest9-21ksoftirqd/020:14:330
1469993427,3cyclictest9-21ksoftirqd/023:34:370
1469993418,4cyclictest9-21ksoftirqd/021:40:040
1469993418,4cyclictest9-21ksoftirqd/020:24:340
1488993328,3cyclictest41-21ksoftirqd/321:49:363
1469993328,3cyclictest9-21ksoftirqd/021:34:550
1469993327,3cyclictest9-21ksoftirqd/021:54:360
1469993316,5cyclictest9-21ksoftirqd/020:34:510
146999325,7cyclictest9-21ksoftirqd/021:04:470
1469993227,3cyclictest9-21ksoftirqd/021:19:570
1469993227,3cyclictest9-21ksoftirqd/021:19:570
1480993025,3cyclictest33-21ksoftirqd/221:19:342
1469993024,3cyclictest9-21ksoftirqd/020:39:460
1480992924,3cyclictest33-21ksoftirqd/200:44:582
1475992923,3cyclictest25-21ksoftirqd/123:50:591
1475992920,6cyclictest28995-21cut23:44:571
23522280,5sleep2148099cyclictest22:10:462
1480992823,3cyclictest33-21ksoftirqd/200:09:432
1475992823,3cyclictest25-21ksoftirqd/122:44:571
1475992823,3cyclictest25-21ksoftirqd/100:04:521
147599282,20cyclictest0-21swapper/101:24:541
148099279,16cyclictest33-21ksoftirqd/201:30:112
1480992722,3cyclictest33-21ksoftirqd/223:25:062
1480992721,3cyclictest33-21ksoftirqd/200:08:232
1480992720,4cyclictest33-21ksoftirqd/223:22:332
1480992720,4cyclictest33-21ksoftirqd/221:44:362
1480992720,4cyclictest33-21ksoftirqd/221:37:422
1480992720,4cyclictest33-21ksoftirqd/201:25:182
1475992722,3cyclictest25-21ksoftirqd/121:59:361
1475992721,3cyclictest25-21ksoftirqd/121:09:341
1475992717,5cyclictest241ktimersoftd/101:09:521
127332270,2sleep20-21swapper/200:01:032
213452260,21sleep121355-21ssh00:43:191
1480992620,3cyclictest33-21ksoftirqd/222:59:532
1480992620,3cyclictest33-21ksoftirqd/222:59:532
1480992620,3cyclictest33-21ksoftirqd/222:35:592
1480992619,4cyclictest33-21ksoftirqd/220:44:022
1480992619,4cyclictest33-21ksoftirqd/200:57:242
148099261,5cyclictest18811-21ssh22:28:492
147599265,12cyclictest30523-21ssh00:19:501
1475992621,3cyclictest25-21ksoftirqd/121:01:141
1475992621,3cyclictest25-21ksoftirqd/120:29:511
1475992621,3cyclictest25-21ksoftirqd/101:04:571
1475992620,3cyclictest29052-21latency_hist22:39:361
1475992619,4cyclictest25-21ksoftirqd/120:55:331
147599261,22cyclictest14842-21apt00:04:381
1480992520,3cyclictest33-21ksoftirqd/222:39:532
1480992518,4cyclictest33-21ksoftirqd/223:30:072
1480992518,4cyclictest33-21ksoftirqd/222:20:262
1480992518,4cyclictest33-21ksoftirqd/221:32:322
1480992518,4cyclictest33-21ksoftirqd/220:48:322
1480992518,4cyclictest33-21ksoftirqd/220:27:522
1480992518,4cyclictest33-21ksoftirqd/200:35:042
1475992520,3cyclictest25-21ksoftirqd/123:44:381
1475992520,3cyclictest25-21ksoftirqd/123:09:551
1475992520,3cyclictest25-21ksoftirqd/122:04:481
1475992520,3cyclictest25-21ksoftirqd/121:29:351
1475992519,3cyclictest25-21ksoftirqd/121:39:531
1475992518,4cyclictest25-21ksoftirqd/121:50:171
1475992518,4cyclictest12374-21gltestperf22:54:531
101492250,3sleep210151-21apt-key21:29:352
50542240,3sleep15178-21/usr/sbin/munin23:20:001
148099249,13cyclictest33-21ksoftirqd/221:59:582
1480992420,3cyclictest33-21ksoftirqd/221:04:572
1480992419,3cyclictest33-21ksoftirqd/223:54:382
1480992419,3cyclictest33-21ksoftirqd/222:44:572
1480992419,3cyclictest33-21ksoftirqd/201:00:022
1480992419,3cyclictest33-21ksoftirqd/200:24:572
1480992418,3cyclictest33-21ksoftirqd/221:54:472
1480992418,3cyclictest33-21ksoftirqd/221:53:262
1480992418,3cyclictest33-21ksoftirqd/221:04:342
1480992418,3cyclictest33-21ksoftirqd/220:17:532
1480992417,4cyclictest33-21ksoftirqd/221:22:162
1480992417,4cyclictest33-21ksoftirqd/221:22:162
1480992417,4cyclictest33-21ksoftirqd/220:20:092
1480992412,10cyclictest33-21ksoftirqd/223:35:052
148099240,3cyclictest121rcu_preempt23:43:502
1475992419,3cyclictest25-21ksoftirqd/122:19:371
1475992419,3cyclictest25-21ksoftirqd/101:20:031
147599241,8cyclictest233-21systemd-journal23:09:371
147599241,8cyclictest233-21systemd-journal23:09:371
1475992418,4cyclictest25-21ksoftirqd/121:25:571
1475992418,3cyclictest25-21ksoftirqd/122:02:221
1475992418,3cyclictest25-21ksoftirqd/100:29:571
1475992417,4cyclictest25-21ksoftirqd/121:21:591
1475992417,4cyclictest25-21ksoftirqd/121:21:591
264842230,18sleep10-21swapper/100:48:451
148099238,4cyclictest20201-21sh01:14:562
1480992319,3cyclictest33-21ksoftirqd/201:06:422
1480992318,3cyclictest33-21ksoftirqd/222:29:562
1480992318,3cyclictest33-21ksoftirqd/220:59:332
1480992317,3cyclictest33-21ksoftirqd/222:49:582
147599235,9cyclictest32536-21ssh22:09:471
1475992318,3cyclictest25-21ksoftirqd/123:00:031
1475992318,3cyclictest25-21ksoftirqd/123:00:031
1475992318,3cyclictest25-21ksoftirqd/120:12:101
1475992318,3cyclictest25-21ksoftirqd/101:29:581
1475992317,3cyclictest25-21ksoftirqd/120:44:521
1475992317,3cyclictest25-21ksoftirqd/100:14:391
1475992316,4cyclictest25-21ksoftirqd/120:25:261
1475992316,4cyclictest25-21ksoftirqd/120:14:551
1480992218,3cyclictest33-21ksoftirqd/223:11:522
1480992217,3cyclictest33-21ksoftirqd/221:40:042
1480992216,3cyclictest33-21ksoftirqd/223:54:502
148099221,11cyclictest24509-21cat01:19:502
147599221,8cyclictest0-21swapper/122:39:481
1475992216,4cyclictest25-21ksoftirqd/100:24:571
1475992215,4cyclictest25-21ksoftirqd/120:36:471
1475992214,5cyclictest19956-21sh01:14:531
147599221,18cyclictest6715-21grep01:00:091
147599220,19cyclictest12112-21ssh22:20:421
148099219,9cyclictest5473-21gltestperf22:14:512
148099219,9cyclictest26137-21gltestperf00:14:552
1480992116,3cyclictest33-21ksoftirqd/200:30:132
1480992115,3cyclictest33-21ksoftirqd/223:47:542
1480992115,3cyclictest33-21ksoftirqd/222:05:032
1480992115,3cyclictest33-21ksoftirqd/220:52:132
1480992115,3cyclictest33-21ksoftirqd/220:39:152
1480992114,4cyclictest4193-21fschecks_time20:09:342
1480992114,4cyclictest31241-21sh23:14:392
1480992114,4cyclictest30826-21sh00:52:532
1480992114,4cyclictest30826-21sh00:52:532
1480992114,4cyclictest15246-21sh22:57:422
1480992114,4cyclictest1257-21sh00:22:232
1480992111,7cyclictest20484-21sh00:41:482
1475992116,3cyclictest25-21ksoftirqd/100:34:521
1475992114,4cyclictest3459-21forks21:14:501
1475992114,4cyclictest31801-21fschecks_time23:14:521
1475992114,4cyclictest29614-21seq00:50:431
1475992114,4cyclictest29614-21seq00:50:431
1475992114,4cyclictest2733-21missed_timers20:04:511
1475992114,4cyclictest25-21ksoftirqd/121:34:401
1475992114,4cyclictest14635-21sh22:24:401
147599211,17cyclictest0-21swapper/123:35:361
1480992013,4cyclictest33-21ksoftirqd/221:13:152
1475992015,3cyclictest2828-21seq21:14:151
1475992015,3cyclictest25-21ksoftirqd/123:24:491
1475992015,3cyclictest25-21ksoftirqd/120:41:321
1475992014,3cyclictest18664-21missed_timers21:44:541
1475992014,3cyclictest11649-21date22:54:371
1475992013,4cyclictest9437-21/usr/sbin/munin20:19:551
1475992013,4cyclictest21115-21sh22:30:011
1480991913,3cyclictest16301-21cron20:34:342
1480991911,5cyclictest15828-21cat01:09:592
1475991913,3cyclictest5393-21/usr/sbin/munin23:54:571
1475991913,3cyclictest27263-21diskmemload00:15:281
1475991812,3cyclictest23723-21apt20:49:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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