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2026-08-12 - 15:32
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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 100 highest latencies:
System rackbslot6.osadl.org (updated Wed Aug 12, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
873721700,5sleep12979899cyclictest09:44:431
2848021660,4sleep12979899cyclictest13:43:021
1068911600,5ptp4l401ktimersoftd/309:22:173
1068911600,5ptp4l401ktimersoftd/309:22:173
1415121570,3sleep12979899cyclictest11:04:441
2041721370,5sleep02979299cyclictest11:54:410
106891690,1ptp4l401ktimersoftd/313:50:003
251032640,2sleep32981799cyclictest13:05:103
106891600,1ptp4l401ktimersoftd/312:43:093
106891590,1ptp4l401ktimersoftd/314:01:573
106891590,1ptp4l401ktimersoftd/310:19:423
106891580,1ptp4l401ktimersoftd/314:48:473
106891580,1ptp4l401ktimersoftd/314:48:473
106891580,1ptp4l401ktimersoftd/314:04:483
29798995622,9cyclictest25-21ksoftirqd/114:35:011
226002560,2sleep20-21swapper/211:56:042
106891560,1ptp4l401ktimersoftd/313:32:043
47042540,2sleep10-21swapper/112:11:001
186362540,2sleep20-21swapper/211:14:402
186362540,2sleep20-21swapper/211:14:402
323602530,2sleep30-21swapper/313:46:223
106891530,1ptp4l401ktimersoftd/311:58:203
29798995141,5cyclictest25-21ksoftirqd/110:09:361
29798994923,4cyclictest25-21ksoftirqd/112:44:421
29798994919,7cyclictest25-21ksoftirqd/111:39:421
29798994841,4cyclictest25-21ksoftirqd/111:44:391
29798994828,3cyclictest25-21ksoftirqd/109:54:391
29798994823,4cyclictest25-21ksoftirqd/113:26:391
29798994817,11cyclictest25-21ksoftirqd/112:34:511
295972484,32sleep20-21swapper/209:23:242
295972484,32sleep20-21swapper/209:23:242
2979899476,3cyclictest25-21ksoftirqd/113:09:401
2979899474,3cyclictest121rcu_preempt11:29:311
29798994722,4cyclictest25-21ksoftirqd/112:14:431
29798994634,3cyclictest25-21ksoftirqd/114:19:501
29798994622,3cyclictest25-21ksoftirqd/114:18:541
106891460,2ptp4l10149-21kworker/3:212:44:433
106891460,1ptp4l401ktimersoftd/312:58:223
29798994520,4cyclictest25-21ksoftirqd/111:34:551
29798994518,8cyclictest25-21ksoftirqd/113:54:301
252492450,4sleep325248-21df_inode11:59:423
2979899449,3cyclictest25-21ksoftirqd/114:29:491
29798994422,7cyclictest25-21ksoftirqd/110:29:471
29798994420,4cyclictest25-21ksoftirqd/112:39:461
29798994419,4cyclictest25-21ksoftirqd/111:58:221
29798994418,8cyclictest25-21ksoftirqd/114:44:581
29798994418,8cyclictest25-21ksoftirqd/114:44:581
29798994418,4cyclictest25-21ksoftirqd/112:20:331
29798994415,7cyclictest25-21ksoftirqd/111:59:431
2979899436,7cyclictest25-21ksoftirqd/114:24:551
2979899434,4cyclictest25-21ksoftirqd/109:29:241
29798994319,7cyclictest25-21ksoftirqd/111:24:491
29798994319,4cyclictest25-21ksoftirqd/109:24:241
29798994316,4cyclictest25-21ksoftirqd/114:04:311
2979899430,9cyclictest25-21ksoftirqd/113:14:471
2979899426,4cyclictest25-21ksoftirqd/113:39:301
2979899423,3cyclictest25-21ksoftirqd/113:09:281
29798994219,4cyclictest25-21ksoftirqd/113:31:371
29798994218,4cyclictest25-21ksoftirqd/114:07:061
29798994217,4cyclictest25-21ksoftirqd/114:39:431
29798994215,9cyclictest25-21ksoftirqd/112:04:461
29798994215,9cyclictest25-21ksoftirqd/109:59:551
106891420,1ptp4l401ktimersoftd/309:44:373
2979899417,7cyclictest25-21ksoftirqd/110:24:251
2979899414,4cyclictest25-21ksoftirqd/112:49:471
29798994134,4cyclictest25-21ksoftirqd/109:24:281
29798994119,7cyclictest25-21ksoftirqd/113:54:461
2979899411,8cyclictest25-21ksoftirqd/109:34:431
29798994118,4cyclictest25-21ksoftirqd/111:10:451
2979899411,7cyclictest25-21ksoftirqd/114:09:331
29798994116,4cyclictest25-21ksoftirqd/114:49:481
29798994113,5cyclictest25-21ksoftirqd/110:14:421
29798994113,4cyclictest25-21ksoftirqd/109:54:241
29798994112,10cyclictest25-21ksoftirqd/112:24:551
2979899408,6cyclictest25-21ksoftirqd/110:04:381
2979899404,9cyclictest25-21ksoftirqd/112:59:471
2979899404,9cyclictest25-21ksoftirqd/112:59:471
2979899403,3cyclictest25-21ksoftirqd/110:29:251
29798994016,4cyclictest25-21ksoftirqd/110:44:491
29798994015,4cyclictest25-21ksoftirqd/109:24:231
29798994012,5cyclictest25-21ksoftirqd/110:59:531
106891400,1ptp4l401ktimersoftd/313:38:553
2979899396,7cyclictest25-21ksoftirqd/113:44:411
29798993916,4cyclictest25-21ksoftirqd/111:19:391
106891390,1ptp4l401ktimersoftd/313:16:343
2979899385,7cyclictest25-21ksoftirqd/113:19:441
2979899385,7cyclictest25-21ksoftirqd/112:34:281
2979899385,6cyclictest25-21ksoftirqd/110:44:251
29798993817,3cyclictest25-21ksoftirqd/111:51:581
29798993815,4cyclictest25-21ksoftirqd/110:54:401
29798993814,8cyclictest25-21ksoftirqd/110:39:261
106891380,1ptp4l401ktimersoftd/314:50:253
106891380,1ptp4l401ktimersoftd/314:26:253
106891380,1ptp4l401ktimersoftd/314:19:463
106891380,1ptp4l401ktimersoftd/313:56:553
106891380,1ptp4l401ktimersoftd/312:34:453
106891380,1ptp4l401ktimersoftd/312:27:323
106891380,1ptp4l401ktimersoftd/311:30:153
106891380,1ptp4l401ktimersoftd/310:25:243
55672372,18sleep329782-21cyclictest13:19:453
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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