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2026-04-22 - 01:05
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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 rack7slot1.osadl.org (updated Tue Apr 21, 2026 12:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2786921410,1sleep14612-21stress10:00:571
2981621260,0sleep04612-21stress11:20:550
16772212460,58sleep30-21swapper/307:08:503
16532211955,23sleep10-21swapper/107:05:431
16807210550,49sleep00-21swapper/007:09:150
1499029345,17sleep20-21swapper/207:05:132
182782700,1sleep04610-21stress12:10:250
170972590,1sleep14610-21stress12:09:361
16968994715,18cyclictest0-21swapper/110:36:551
1696899453,27cyclictest4610-21stress09:19:301
1696899453,27cyclictest4610-21stress09:19:301
194472440,1sleep14610-21stress09:42:421
1696899443,30cyclictest4612-21stress10:15:161
1696899443,27cyclictest26569-21basename07:30:111
1696899443,25cyclictest0-21swapper/112:11:521
16969994322,18cyclictest0-21swapper/211:26:452
16969994315,25cyclictest0-21swapper/211:55:332
1696899433,31cyclictest30096-21head07:35:231
1696899433,26cyclictest4610-21stress11:40:021
1696899433,25cyclictest4612-21stress11:00:451
1696999426,25cyclictest0-21swapper/211:50:252
1696899424,29cyclictest4612-21stress11:10:331
1696899423,36cyclictest4612-21stress11:51:561
1696899423,30cyclictest4610-21stress11:40:191
1696899423,30cyclictest14358-21wc08:15:191
1696899423,28cyclictest4656-21modprobe07:55:011
1696899423,24cyclictest4612-21stress10:49:331
1696899423,24cyclictest4610-21stress12:16:361
1696899423,24cyclictest4610-21stress09:12:421
1696899423,23cyclictest28212-21aten2_r7power_v12:35:141
1696899422,25cyclictest4612-21stress11:15:221
1696899422,25cyclictest4612-21stress11:15:211
1696899422,25cyclictest4610-21stress12:22:161
1696899422,25cyclictest4610-21stress12:22:161
1696899422,25cyclictest4610-21stress10:26:311
1696899422,25cyclictest4610-21stress10:09:261
16968994214,25cyclictest0-21swapper/111:05:251
16968994214,25cyclictest0-21swapper/111:05:251
1696899413,31cyclictest1009-21tcf-agent07:43:051
1696899413,25cyclictest604-21cut07:45:131
1696899413,25cyclictest25688-21cat07:25:221
1696899413,24cyclictest4610-21stress12:25:161
1696899412,25cyclictest4610-21stress10:55:251
1696899412,24cyclictest4610-21stress11:45:121
1696899412,24cyclictest4610-21stress11:45:121
1696899412,24cyclictest4610-21stress10:30:121
1696899412,24cyclictest4610-21stress10:30:111
1696899412,24cyclictest4610-21stress09:25:281
16968994120,19cyclictest0-21swapper/110:40:221
16967994126,12cyclictest0-21swapper/011:44:510
1696899403,28cyclictest3830-21switchtime09:05:221
1696899403,28cyclictest3830-21switchtime09:05:221
1696899403,28cyclictest30929-21ls08:55:121
1696899403,25cyclictest22288-21cut07:20:121
1696899403,24cyclictest21900-21turbostat.cron08:35:011
1696899403,23cyclictest592-21grep11:30:171
1696899403,23cyclictest4612-21stress09:50:031
1696899402,24cyclictest4612-21stress10:10:251
1696899402,24cyclictest4610-21stress09:20:151
16967994018,19cyclictest0-21swapper/009:10:050
16967994014,23cyclictest0-21swapper/009:20:400
1696999398,24cyclictest0-21swapper/207:55:232
16969993916,20cyclictest0-21swapper/211:38:192
1696899395,20cyclictest0-21swapper/108:25:141
1696899393,24cyclictest4612-21stress10:25:001
1696899393,24cyclictest29821-21timerandwakeup08:50:231
1696899393,24cyclictest26465-21runrttasks08:45:101
1696899393,24cyclictest21164-21gunzip07:15:231
1696899393,23cyclictest14177-21kernelversion09:30:221
1696899393,22cyclictest24609-21diskstats09:55:171
16968993917,20cyclictest0-21swapper/112:00:101
16967993913,23cyclictest0-21swapper/012:36:570
16967993911,26cyclictest0-21swapper/009:45:070
64602385,13sleep30-21swapper/307:55:343
16970993816,19cyclictest0-21swapper/310:42:233
1696999384,25cyclictest0-21swapper/208:35:182
16969993817,18cyclictest0-21swapper/210:11:392
16969993816,19cyclictest0-21swapper/209:12:322
16969993815,20cyclictest0-21swapper/212:10:292
1696899383,22cyclictest28340-21wget11:20:111
1696899383,21cyclictest30891-21fschecks_count11:25:181
1696899383,20cyclictest21067-21mailstats09:45:311
1696899382,27cyclictest4612-21stress12:31:211
16968993815,21cyclictest0-21swapper/111:55:201
87622375,11sleep30-21swapper/308:02:363
194112375,11sleep30-21swapper/308:26:183
1696999379,25cyclictest0-21swapper/210:55:272
1696999378,22cyclictest0-21swapper/208:19:482
1696999378,22cyclictest0-21swapper/207:32:492
1696999377,20cyclictest0-21swapper/210:35:272
1696999376,20cyclictest0-21swapper/209:30:012
16969993722,12cyclictest0-21swapper/209:40:092
16969993720,15cyclictest0-21swapper/212:15:212
16969993716,19cyclictest0-21swapper/210:40:242
16969993716,19cyclictest0-21swapper/210:31:482
16969993716,19cyclictest0-21swapper/210:31:482
16969993715,20cyclictest0-21swapper/211:19:502
16969993715,20cyclictest0-21swapper/211:19:502
16969993711,17cyclictest0-21swapper/212:05:122
16969993710,24cyclictest0-21swapper/211:30:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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