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2026-07-01 - 20:10
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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 Wed Jul 01, 2026 12:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1290621420,7sleep33259799cyclictest12:15:013
108482760,5sleep125-21ksoftirqd/111:00:171
3259799685,22cyclictest18347-21timerwakeupswit10:05:283
3259799682,3cyclictest5806-21grep07:20:183
134491670,3ptp4l6372-21/usr/sbin/munin08:30:261
134491640,5ptp4l0-21swapper/011:20:110
134491630,4ptp4l0-21swapper/108:35:241
134491630,22ptp4l0-21swapper/011:59:240
134491600,4ptp4l0-21swapper/112:00:181
134491600,3ptp4l19800-21diskstats11:20:141
134491590,4ptp4l21770-21/usr/sbin/munin11:25:180
134491590,15ptp4l0-21swapper/109:45:241
3259799580,4cyclictest13663-21awk12:15:173
134491580,4ptp4l0-21swapper/109:00:481
134491580,4ptp4l0-21swapper/108:59:411
134491570,4ptp4l0-21swapper/111:59:311
134491570,4ptp4l0-21swapper/007:13:100
134491570,3ptp4l0-21swapper/108:27:451
134491560,4ptp4l0-21swapper/209:31:302
134491560,4ptp4l0-21swapper/207:06:452
134491560,4ptp4l0-21swapper/112:32:191
134491560,4ptp4l0-21swapper/108:07:491
134491560,4ptp4l0-21swapper/008:01:130
134491560,3ptp4l0-21swapper/011:50:330
133742560,5sleep13259599cyclictest08:45:251
134491550,4ptp4l0-21swapper/209:03:012
134491550,4ptp4l0-21swapper/111:49:221
134491550,4ptp4l0-21swapper/111:30:171
134491550,4ptp4l0-21swapper/009:17:370
134491550,4ptp4l0-21swapper/008:28:440
134491550,3ptp4l0-21swapper/112:38:301
134491550,3ptp4l0-21swapper/010:13:320
134491550,14ptp4l0-21swapper/109:20:141
134491540,4ptp4l0-21swapper/009:55:510
134491540,4ptp4l0-21swapper/009:55:500
134491540,4ptp4l0-21swapper/008:49:210
134491540,3ptp4l0-21swapper/011:00:200
134491540,3ptp4l0-21swapper/007:39:070
134491530,4ptp4l0-21swapper/112:24:551
134491530,4ptp4l0-21swapper/111:51:291
134491530,4ptp4l0-21swapper/108:15:281
134491530,4ptp4l0-21swapper/012:36:050
134491530,4ptp4l0-21swapper/008:42:560
134491520,5ptp4l0-21swapper/307:08:153
134491520,4ptp4l0-21swapper/112:19:481
134491520,4ptp4l0-21swapper/109:27:421
134491520,4ptp4l0-21swapper/109:27:421
134491520,4ptp4l0-21swapper/009:07:230
134491520,3ptp4l0-21swapper/111:27:461
134491520,3ptp4l0-21swapper/109:38:591
134491520,3ptp4l0-21swapper/109:11:081
134491520,3ptp4l0-21swapper/010:39:140
134491520,3ptp4l0-21swapper/007:55:160
134491520,11ptp4l0-21swapper/111:35:241
32596995118,3cyclictest33-21ksoftirqd/207:32:422
134491510,4ptp4l0-21swapper/111:12:351
134491510,4ptp4l0-21swapper/012:06:590
134491510,4ptp4l0-21swapper/010:51:400
134491510,3ptp4l0-21swapper/012:02:040
134491510,3ptp4l0-21swapper/010:26:570
134491510,11ptp4l0-21swapper/111:40:251
3259799503,3cyclictest31315-21cpuspeed_turbos11:45:143
3259799501,4cyclictest16764-21df_inode07:45:163
3259799501,3cyclictest29322-21missed_timers09:20:233
134491500,3ptp4l0-21swapper/210:09:302
134491500,3ptp4l0-21swapper/110:23:101
134491500,3ptp4l0-21swapper/008:56:580
134491500,3ptp4l0-21swapper/008:10:250
134491490,4ptp4l0-21swapper/207:58:352
134491490,4ptp4l0-21swapper/109:59:101
134491490,4ptp4l0-21swapper/109:59:101
134491490,3ptp4l0-21swapper/012:18:310
134491490,3ptp4l0-21swapper/009:34:020
32596994836,10cyclictest33-21ksoftirqd/211:30:252
32596994814,5cyclictest33-21ksoftirqd/212:10:272
32596994814,4cyclictest33-21ksoftirqd/209:00:002
134491480,4ptp4l0-21swapper/209:08:342
134491480,4ptp4l0-21swapper/207:49:312
134491480,4ptp4l0-21swapper/110:48:591
134491480,4ptp4l0-21swapper/007:52:070
134491480,3ptp4l0-21swapper/011:48:560
134491480,11ptp4l0-21swapper/212:05:122
134491480,10ptp4l0-21swapper/110:50:221
32596994734,10cyclictest33-21ksoftirqd/212:30:272
32596994714,3cyclictest33-21ksoftirqd/208:33:082
134491470,4ptp4l0-21swapper/108:12:521
134491470,4ptp4l0-21swapper/012:25:580
134491470,4ptp4l0-21swapper/010:19:100
134491470,3ptp4l0-21swapper/211:20:072
134491470,10ptp4l9760-21df07:30:121
134491460,5ptp4l0-21swapper/307:10:263
134491460,4ptp4l0-21swapper/110:59:181
134491460,4ptp4l0-21swapper/110:26:301
134491460,4ptp4l0-21swapper/107:39:341
134491460,4ptp4l0-21swapper/009:46:370
32596994511,8cyclictest33-21ksoftirqd/209:20:162
32596994511,4cyclictest33-21ksoftirqd/209:35:542
134491450,4ptp4l0-21swapper/112:29:511
134491450,4ptp4l0-21swapper/110:16:271
134491450,3ptp4l0-21swapper/010:55:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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