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2026-08-26 - 20:06
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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 rackdslot4.osadl.org (updated Wed Aug 26, 2026 12:45:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591205171,23phc2sys0-21swapper/307:05:103
12252205171,22sleep10-21swapper/107:09:011
9592204169,23sleep00-21swapper/007:05:400
10442201168,21sleep20-21swapper/207:06:462
138591161122,14phc2sys0-21swapper/307:10:013
3004521190,2sleep2161799cyclictest08:05:182
161699670,26cyclictest16152-21cron08:45:001
161699657,22cyclictest20791-21date09:55:261
161699650,24cyclictest22605-21/usr/sbin/munin07:50:191
161699610,24cyclictest25850-21/usr/sbin/munin07:55:261
161699600,23cyclictest30862-21chrt12:26:101
161699590,22cyclictest15949-21chrt11:57:531
161699590,22cyclictest15949-21chrt11:57:531
161699580,23cyclictest9673-21/usr/sbin/munin07:25:151
161699580,23cyclictest4748-21/usr/sbin/munin09:25:191
161699570,23cyclictest4755-21/usr/sbin/munin08:20:161
161699570,21cyclictest27013-21/usr/sbin/munin08:00:141
56032560,2sleep2311rcuc/207:15:232
161699561,22cyclictest11386-21turbostat.cron09:44:551
161699560,22cyclictest20348-21/usr/sbin/munin12:05:241
161699560,19cyclictest3150-21unixbench_multi11:30:251
161599565,9cyclictest9-21ksoftirqd/008:45:010
1615995626,10cyclictest9-21ksoftirqd/009:00:130
34452550,2sleep20-21swapper/210:25:272
161699558,21cyclictest331-21awk11:25:241
161699550,30cyclictest13396-21chrt10:45:361
161699550,23cyclictest12081-21idleruntime11:50:181
161699550,22cyclictest15002-21irqstats07:35:181
161699550,21cyclictest25082-21/usr/sbin/munin11:10:221
161699550,20cyclictest7851-21/usr/sbin/munin10:35:221
161699550,20cyclictest23534-21chrt08:57:371
161699550,19cyclictest11172-21chrt10:43:361
161599557,9cyclictest9-21ksoftirqd/011:25:200
161599554,10cyclictest9-21ksoftirqd/007:55:210
138491550,1ptp4l401ktimersoftd/311:57:493
138491550,1ptp4l401ktimersoftd/311:57:493
161699540,20cyclictest22888-21sensors11:05:251
161599545,9cyclictest9-21ksoftirqd/010:30:180
161599545,9cyclictest9-21ksoftirqd/010:30:180
161599545,9cyclictest9-21ksoftirqd/009:50:000
161599545,9cyclictest9-21ksoftirqd/009:35:170
161599545,9cyclictest9-21ksoftirqd/009:15:010
161599545,9cyclictest9-21ksoftirqd/007:25:120
161599545,8cyclictest9-21ksoftirqd/008:15:140
161599543,9cyclictest9-21ksoftirqd/009:20:190
161699530,25cyclictest15307-21proc_pri10:50:231
161699530,22cyclictest4158-21/usr/sbin/munin07:15:121
161599536,9cyclictest9-21ksoftirqd/008:50:130
161599535,9cyclictest9-21ksoftirqd/007:35:180
161599535,8cyclictest9-21ksoftirqd/008:55:200
161599535,8cyclictest9-21ksoftirqd/007:30:160
1615995323,10cyclictest9-21ksoftirqd/007:45:130
1615995322,3cyclictest9-21ksoftirqd/008:25:000
161699520,23cyclictest3524-21chrt08:16:121
161699520,23cyclictest18281-21timedrift07:40:261
161699520,21cyclictest5800-21chrt11:36:391
161599526,8cyclictest9-21ksoftirqd/008:10:140
161599525,9cyclictest9-21ksoftirqd/010:10:150
161599525,8cyclictest9-21ksoftirqd/010:20:260
161599524,9cyclictest9-21ksoftirqd/012:05:120
161599524,9cyclictest9-21ksoftirqd/010:00:140
161599524,8cyclictest9-21ksoftirqd/007:20:200
161599523,6cyclictest9-21ksoftirqd/010:25:170
161599523,5cyclictest9-21ksoftirqd/010:15:210
1615995221,4cyclictest9-21ksoftirqd/010:05:140
1615995219,10cyclictest9-21ksoftirqd/008:45:200
161699511,21cyclictest21063-21taskset07:46:241
161699510,22cyclictest20373-21/usr/sbin/munin11:00:271
161699510,21cyclictest13514-21chrt07:31:591
161699510,21cyclictest1303-21runrttasks12:18:101
161699510,21cyclictest1303-21runrttasks10:14:551
161599515,9cyclictest9-21ksoftirqd/009:55:000
161599515,8cyclictest9-21ksoftirqd/009:05:150
161599513,8cyclictest9-21ksoftirqd/011:50:010
161599513,7cyclictest9-21ksoftirqd/007:10:190
161599513,5cyclictest9-21ksoftirqd/012:25:110
161699500,23cyclictest23879-21chrt10:04:561
161599505,9cyclictest9-21ksoftirqd/011:15:160
161599504,8cyclictest9-21ksoftirqd/011:55:150
161599504,8cyclictest9-21ksoftirqd/011:55:150
1615995031,11cyclictest9-21ksoftirqd/009:35:000
1615995018,4cyclictest9-21ksoftirqd/007:50:110
161699491,19cyclictest223-21systemd-journal11:18:451
161699490,22cyclictest3757-21chrt07:13:071
161699490,22cyclictest1166-21chrt12:34:321
161599496,8cyclictest9-21ksoftirqd/010:50:170
161599496,10cyclictest9-21ksoftirqd/012:15:230
161699480,22cyclictest3765-21chrt10:28:191
161699480,20cyclictest32576-21/usr/sbin/munin10:20:181
161699480,18cyclictest13597-21chrt08:38:591
161699480,17cyclictest27025-21chrt12:20:201
161699480,17cyclictest27025-21chrt12:20:201
161599486,9cyclictest9-21ksoftirqd/012:35:140
161599486,9cyclictest9-21ksoftirqd/010:40:170
161599486,8cyclictest9-21ksoftirqd/009:25:140
161599486,10cyclictest9-21ksoftirqd/011:00:290
161599485,9cyclictest9-21ksoftirqd/012:20:260
161599485,9cyclictest9-21ksoftirqd/012:20:260
161599484,9cyclictest9-21ksoftirqd/009:55:250
161599483,6cyclictest9-21ksoftirqd/012:30:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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