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2025-12-10 - 17:07
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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 rack6slot0.osadl.org (updated Wed Dec 10, 2025 13:01:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
253389927828,234cyclictest0-21swapper/2907:40:1922
253389927828,234cyclictest0-21swapper/2907:40:1922
253389926832,215cyclictest24378-21TaskSchedulerSi11:40:1922
253389926832,215cyclictest24378-21TaskSchedulerSi11:40:1822
253389925221,209cyclictest0-21swapper/2908:25:2022
253389925221,209cyclictest0-21swapper/2908:25:1922
25338992484,230cyclictest0-21swapper/2909:45:2022
25338992484,230cyclictest0-21swapper/2909:45:2022
25338992484,230cyclictest0-21swapper/2909:45:2022
25338992484,230cyclictest0-21swapper/2909:45:2022
253389924221,206cyclictest36794-21nfsd10:35:1922
253389924221,206cyclictest36794-21nfsd10:35:1922
253389924221,206cyclictest36794-21nfsd10:35:1922
253389923450,164cyclictest0-21swapper/2909:10:1822
253389923450,164cyclictest0-21swapper/2909:10:1822
2537499222209,5cyclictest0-21swapper/3912:25:1933
2537499222209,5cyclictest0-21swapper/3912:25:1833
2537499222209,5cyclictest0-21swapper/3912:25:1833
25368992220,219cyclictest39207-21NetworkChangeNo07:25:1929
25368992220,219cyclictest39207-21NetworkChangeNo07:25:1929
253389921443,163cyclictest12050-21inotify_reader07:30:2122
253389921443,163cyclictest12050-21inotify_reader07:30:2122
253349921472,115cyclictest0-21swapper/2610:05:2119
253349921472,115cyclictest0-21swapper/2610:05:2119
25338992134,189cyclictest0-21swapper/2910:20:1822
25338992134,189cyclictest0-21swapper/2910:20:1822
25338992134,189cyclictest0-21swapper/2910:20:1822
2530099209203,4cyclictest0-21swapper/610:35:2136
2530099209203,4cyclictest0-21swapper/610:35:2136
2530099209203,4cyclictest0-21swapper/610:35:2136
2530499207198,7cyclictest0-21swapper/811:32:0938
2530499207198,7cyclictest0-21swapper/811:32:0838
2533199205165,37cyclictest11903-21CPU16
2533199205165,37cyclictest11903-21CPU16
253389920441,158cyclictest0-21swapper/2909:25:1822
253389920441,158cyclictest0-21swapper/2909:25:1822
253279920416,96cyclictest39598-21inotify_reader10:35:2011
253279920416,96cyclictest39598-21inotify_reader10:35:2011
253279920416,96cyclictest39598-21inotify_reader10:35:1911
2530799199194,3cyclictest0-21swapper/910:35:1539
2530799199194,3cyclictest0-21swapper/910:35:1539
2530799199194,3cyclictest0-21swapper/910:35:1539
2533199198190,6cyclictest0-21swapper/2311:53:3316
2533199198190,6cyclictest0-21swapper/2311:53:3316
2533199198190,6cyclictest0-21swapper/2311:53:3316
2530499196189,5cyclictest0-21swapper/810:10:0338
2530499196189,5cyclictest0-21swapper/810:10:0338
253289919517,175cyclictest6937-21inotify_reader10:35:1913
253289919517,175cyclictest6937-21inotify_reader10:35:1913
253289919517,175cyclictest6937-21inotify_reader10:35:1913
25368991941,69cyclictest0-21swapper/3508:10:1829
25368991941,69cyclictest0-21swapper/3508:10:1829
253389919437,154cyclictest0-21swapper/2908:30:1522
253389919437,154cyclictest0-21swapper/2908:30:1522
253389919430,159cyclictest15979-21CPU22
253389919430,159cyclictest15979-21CPU22
253389919430,159cyclictest15979-21CPU22
2529599194160,30cyclictest0-21swapper/211:27:1012
2529599194160,30cyclictest0-21swapper/211:27:1012
2529599194160,30cyclictest0-21swapper/211:27:1012
2534099193184,8cyclictest0-21swapper/3110:41:5525
2534099193184,8cyclictest0-21swapper/3110:41:5525
2534099193184,8cyclictest0-21swapper/3110:41:5525
25292991931,24cyclictest0-21swapper/010:30:200
25292991931,24cyclictest0-21swapper/010:30:200
25292991931,24cyclictest0-21swapper/010:30:200
2533499192107,72cyclictest11904-21CPU19
2533499192107,72cyclictest11904-21CPU19
2533499192107,72cyclictest11904-21CPU19
252959919292,89cyclictest28747-21inotify_reader08:35:2012
252959919292,89cyclictest28747-21inotify_reader08:35:2012
253379919128,155cyclictest0-21swapper/2807:15:2021
253349919128,155cyclictest26392-21bash10:30:2019
253349919128,155cyclictest26392-21bash10:30:2019
253349919128,155cyclictest26392-21bash10:30:2019
2533299191177,8cyclictest171rcu_preempt10:31:2517
2533299191177,8cyclictest171rcu_preempt10:31:2517
2533299191177,8cyclictest171rcu_preempt10:31:2517
253089919112,175cyclictest15981-21CPU2
253089919112,175cyclictest15981-21CPU2
253089919112,175cyclictest15981-21CPU2
2529499191177,9cyclictest0-21swapper/110:17:011
2529499191177,9cyclictest0-21swapper/110:17:011
2529499191177,9cyclictest0-21swapper/110:17:011
253729919036,148cyclictest9327-21CPU31
253729919036,148cyclictest9327-21CPU31
253729919036,148cyclictest9327-21CPU31
25368991902,5cyclictest15985-21CPU29
25368991902,5cyclictest15985-21CPU29
25368991902,5cyclictest15985-21CPU29
2530499190145,36cyclictest0-21swapper/809:52:5638
2530499190145,36cyclictest0-21swapper/809:52:5538
2530499190145,36cyclictest0-21swapper/809:52:5538
2529599190145,41cyclictest4910-21CPU12
2529599190145,41cyclictest4910-21CPU12
2529599190145,41cyclictest4910-21CPU12
252959919012,166cyclictest15981-21CPU12
252959919012,166cyclictest15981-21CPU12
253389918936,148cyclictest0-21swapper/2909:41:1122
253389918936,148cyclictest0-21swapper/2909:41:1122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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