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2026-08-07 - 22:40
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackdslot1.osadl.org (updated Fri Aug 07, 2026 12:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
134491800,3ptp4l0-21swapper/210:15:042
209582720,5sleep10-21swapper/112:15:221
7700997118,10cyclictest17132-21chrt12:07:401
7700997116,11cyclictest18741-21chrt07:32:001
7700997114,12cyclictest32322-21ntpq08:00:211
7700997017,12cyclictest14311-21chrt07:24:051
7700997017,11cyclictest30900-21chrt11:25:431
7700997017,11cyclictest26385-21chrt07:50:041
7700997016,12cyclictest28871-21chrt12:32:151
7700997016,11cyclictest3187-21taskset08:09:241
7700996922,44cyclictest3563-21/usr/sbin/munin09:20:131
7700996917,11cyclictest19214-21chrt09:51:151
7700996915,11cyclictest23547-21chrt07:43:511
7700996913,16cyclictest414-21mailstats10:20:251
7700996910,14cyclictest27693-21ntp_states09:00:231
7700996818,11cyclictest5519-21chrt10:30:481
7700996817,13cyclictest10013-21chrt07:15:101
7700996817,11cyclictest12189-21chrt08:26:391
7700996816,11cyclictest2909-21chrt09:16:421
7700996816,11cyclictest26668-21chrt12:28:261
7699996836,4cyclictest9-21ksoftirqd/012:30:000
7700996718,11cyclictest26385-21chrt10:08:571
7700996717,9cyclictest26280-21chrt11:15:401
7700996717,12cyclictest9866-21chrt08:21:171
7700996717,12cyclictest10328-21taskset09:35:071
7700996717,11cyclictest12634-21taskset11:59:091
7700996717,10cyclictest7564-21chrt09:27:081
7700996717,10cyclictest19668-21chrt11:04:531
7700996716,11cyclictest9681-21taskset07:13:531
7700996716,11cyclictest7858-21taskset11:46:491
7700996713,11cyclictest1236-21date11:35:001
7700996617,11cyclictest5608-21chrt11:42:321
7700996617,11cyclictest19300-21taskset12:11:001
7700996617,11cyclictest17020-21taskset09:47:341
7700996617,11cyclictest16683-21taskset07:29:591
7699996631,4cyclictest9-21ksoftirqd/012:10:260
7699996628,3cyclictest121rcu_preempt09:50:270
7700996517,12cyclictest28595-21chrt11:20:381
7700996517,11cyclictest768-21chrt09:14:501
7700996517,11cyclictest24168-21chrt12:20:471
7700996517,11cyclictest21774-21chrt11:06:461
7700996517,11cyclictest21614-21chrt09:56:531
7700996517,10cyclictest3473-21chrt08:10:101
7700996517,10cyclictest21219-21taskset07:38:421
7700996517,10cyclictest21219-21taskset07:38:421
7700996516,11cyclictest14885-21chrt10:52:451
7700996516,10cyclictest28760-21chrt10:14:501
7700996515,11cyclictest23868-21taskset10:01:061
7700996417,11cyclictest3447-21taskset11:39:311
7700996417,11cyclictest30734-21chrt07:57:101
7700996417,11cyclictest23874-21chrt07:45:031
7700996417,11cyclictest21585-21chrt08:48:251
7700996417,11cyclictest21585-21chrt08:48:251
7700996417,10cyclictest30661-21chrt09:06:471
7700996416,11cyclictest21948-21chrt08:50:051
7700996416,11cyclictest1317-21runrttasks12:36:591
7700996414,11cyclictest240822chrt11:11:551
7699996434,4cyclictest9-21ksoftirqd/009:25:180
7700996317,11cyclictest3490-21chrt10:29:161
7700996317,11cyclictest14846-21chrt09:44:091
7700996316,10cyclictest19108-21taskset08:41:471
7700996312,12cyclictest6120-21fschecks_count08:15:161
7700996310,11cyclictest16697-21cat10:55:251
7699996333,3cyclictest9-21ksoftirqd/007:40:120
7699996329,6cyclictest9-21ksoftirqd/012:05:160
7700996218,11cyclictest10157-21chrt11:51:511
7700996217,12cyclictest10058-21chrt09:34:391
7699996231,5cyclictest9-21ksoftirqd/012:20:210
7699996231,4cyclictest9-21ksoftirqd/012:30:190
7699996225,4cyclictest9-21ksoftirqd/010:55:130
134491620,14ptp4l1301-21snmpd07:06:123
7700996118,10cyclictest14502-21chrt08:31:521
7700996117,10cyclictest7898-21taskset10:36:461
7700996113,10cyclictest15012-21taskset08:35:131
7700996111,11cyclictest8418-21/usr/sbin/munin10:40:291
7700996111,11cyclictest8418-21/usr/sbin/munin10:40:281
7699996128,3cyclictest9-21ksoftirqd/008:55:000
134491610,4ptp4l0-21swapper/212:10:152
770099602,10cyclictest0-21swapper/109:00:001
7700996015,11cyclictest14841-21chrt12:02:421
7700996013,11cyclictest12061-21mailstats10:45:241
7700996011,13cyclictest30699-21timerandwakeup10:15:281
7699996027,6cyclictest9-21ksoftirqd/009:15:210
134491600,4ptp4l0-21swapper/010:10:130
7699995930,5cyclictest9-21ksoftirqd/009:10:180
7699995919,10cyclictest9-21ksoftirqd/008:20:010
7699995829,6cyclictest9-21ksoftirqd/007:25:150
7699995828,5cyclictest9-21ksoftirqd/007:15:200
7699995827,6cyclictest9-21ksoftirqd/008:05:180
7699995827,5cyclictest9-21ksoftirqd/009:35:150
7699995825,6cyclictest9-21ksoftirqd/008:00:000
327672580,4sleep032762-21proc_pri10:20:230
134491580,5ptp4l0-21swapper/008:25:230
7699995729,5cyclictest9-21ksoftirqd/011:45:000
7699995728,5cyclictest9-21ksoftirqd/011:50:150
7699995728,5cyclictest9-21ksoftirqd/011:10:180
7699995728,5cyclictest9-21ksoftirqd/010:45:000
7699995728,5cyclictest9-21ksoftirqd/010:45:000
7699995727,5cyclictest9-21ksoftirqd/009:25:000
7699995725,5cyclictest9-21ksoftirqd/009:45:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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