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2026-08-03 - 17:07
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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 Mon Aug 03, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
70821640,5sleep31835699cyclictest13:51:273
2534721620,2sleep21834599cyclictest11:32:552
1104121510,4sleep11834199cyclictest14:02:291
1068911180,9ptp4l20380-21kworker/3:009:17:583
165872720,3sleep20-21swapper/211:56:202
106891700,1ptp4l401ktimersoftd/313:34:513
152982580,1sleep10-21swapper/112:28:021
106891580,1ptp4l401ktimersoftd/314:11:193
106891580,1ptp4l401ktimersoftd/312:55:313
106891570,1ptp4l401ktimersoftd/311:35:453
106891560,1ptp4l401ktimersoftd/314:49:253
106891560,1ptp4l401ktimersoftd/312:08:353
1834599532,13cyclictest20860-21ssh13:05:272
18345995110,11cyclictest33-21ksoftirqd/211:36:322
181112504,34sleep20-21swapper/209:17:542
276182490,1sleep30-21swapper/312:39:533
1834599498,17cyclictest18743-21expr09:19:382
18345994813,5cyclictest33-21ksoftirqd/209:40:482
106891480,1ptp4l401ktimersoftd/311:40:463
210892470,2sleep10-21swapper/109:24:271
1834599476,8cyclictest20065-21sed10:29:272
106891470,10ptp4l401ktimersoftd/312:27:013
18341994640,3cyclictest0-21swapper/109:19:261
106891450,0ptp4l401ktimersoftd/312:17:353
18345994410,5cyclictest33-21ksoftirqd/213:39:592
1834599438,5cyclictest33-21ksoftirqd/211:06:152
1834599428,6cyclictest33-21ksoftirqd/210:34:562
1834599427,7cyclictest32223-21apt-config14:24:332
1834599426,5cyclictest33-21ksoftirqd/213:28:472
106891420,1ptp4l401ktimersoftd/311:32:333
106891420,0ptp4l401ktimersoftd/312:04:273
1834599407,5cyclictest33-21ksoftirqd/214:09:412
18345994020,11cyclictest33-21ksoftirqd/213:14:562
1834599398,5cyclictest33-21ksoftirqd/213:45:162
1834599397,5cyclictest33-21ksoftirqd/214:23:442
1834599396,5cyclictest33-21ksoftirqd/214:43:572
1834599396,5cyclictest33-21ksoftirqd/214:29:412
1834599396,5cyclictest33-21ksoftirqd/212:57:092
1834599396,5cyclictest33-21ksoftirqd/212:31:332
1834599396,5cyclictest33-21ksoftirqd/211:48:162
1834599395,5cyclictest33-21ksoftirqd/212:52:472
1834599395,5cyclictest33-21ksoftirqd/211:21:142
106891390,1ptp4l401ktimersoftd/311:23:573
1834599387,5cyclictest33-21ksoftirqd/213:11:102
1834599385,5cyclictest33-21ksoftirqd/213:58:392
1834599385,5cyclictest33-21ksoftirqd/210:49:262
1834599385,5cyclictest33-21ksoftirqd/210:49:262
106891380,1ptp4l401ktimersoftd/314:26:293
106891380,1ptp4l401ktimersoftd/314:15:173
106891380,1ptp4l401ktimersoftd/314:15:173
106891380,1ptp4l401ktimersoftd/314:06:563
106891380,1ptp4l401ktimersoftd/313:24:583
106891380,1ptp4l401ktimersoftd/313:16:483
106891380,1ptp4l401ktimersoftd/313:09:153
106891380,1ptp4l401ktimersoftd/311:56:263
106891380,0ptp4l401ktimersoftd/312:30:143
96522370,20sleep341-21ksoftirqd/310:04:523
1834599377,5cyclictest33-21ksoftirqd/214:17:002
1834599377,5cyclictest33-21ksoftirqd/214:17:002
1834599377,4cyclictest33-21ksoftirqd/212:04:362
1834599376,5cyclictest33-21ksoftirqd/214:35:082
1834599376,5cyclictest33-21ksoftirqd/211:26:562
1834599375,5cyclictest33-21ksoftirqd/214:04:302
18345993710,5cyclictest33-21ksoftirqd/209:59:502
18341993724,8cyclictest25-21ksoftirqd/113:34:441
106891370,1ptp4l401ktimersoftd/314:00:093
106891370,1ptp4l401ktimersoftd/313:20:003
106891370,1ptp4l401ktimersoftd/312:11:123
106891370,1ptp4l401ktimersoftd/310:16:453
106891370,0ptp4l401ktimersoftd/312:54:123
1834599367,5cyclictest33-21ksoftirqd/213:22:212
1834599367,5cyclictest33-21ksoftirqd/212:25:282
1834599367,5cyclictest33-21ksoftirqd/211:52:262
1834599366,5cyclictest33-21ksoftirqd/212:36:212
1834599366,5cyclictest33-21ksoftirqd/212:36:212
1834599366,5cyclictest33-21ksoftirqd/211:44:282
1834599366,4cyclictest33-21ksoftirqd/212:15:102
1834599365,6cyclictest33-21ksoftirqd/213:37:312
106891360,1ptp4l401ktimersoftd/314:43:393
106891360,1ptp4l401ktimersoftd/314:30:043
106891360,1ptp4l401ktimersoftd/313:57:003
106891360,1ptp4l401ktimersoftd/313:45:273
106891360,1ptp4l401ktimersoftd/312:20:033
106891360,0ptp4l401ktimersoftd/312:39:263
106891360,0ptp4l401ktimersoftd/312:39:263
106891360,0ptp4l401ktimersoftd/310:50:233
1834599359,5cyclictest33-21ksoftirqd/209:57:212
1834599358,5cyclictest33-21ksoftirqd/214:46:182
1834599356,5cyclictest33-21ksoftirqd/212:24:212
1834599355,5cyclictest33-21ksoftirqd/214:06:442
18345993515,8cyclictest33-21ksoftirqd/212:09:402
106891350,1ptp4l8767-21kworker/3:011:29:273
106891350,1ptp4l401ktimersoftd/313:30:323
106891350,1ptp4l401ktimersoftd/313:10:453
106891350,0ptp4l401ktimersoftd/314:34:553
106891350,0ptp4l401ktimersoftd/312:46:243
106891350,0ptp4l401ktimersoftd/311:48:333
18345993314,8cyclictest33-21ksoftirqd/209:49:282
106891330,2ptp4l12738-21kworker/3:110:27:293
106891330,1ptp4l401ktimersoftd/310:11:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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