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2026-04-26 - 04:59
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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 highest latencies:
System rackdslot1.osadl.org (updated Sun Apr 26, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2143499829,70cyclictest0-21swapper/323:55:243
134491770,5ptp4l22307-21irqstats19:10:201
134491770,5ptp4l22307-21irqstats19:10:201
21434997214,11cyclictest28161-21sshd19:22:073
21434997113,11cyclictest21861-21seq22:36:563
21434996913,13cyclictest5991-21taskset22:04:533
21434996814,11cyclictest5554-21seq20:54:103
21434996814,10cyclictest26500-21seq22:46:353
21434996814,10cyclictest23805-21seq21:31:213
21434996715,10cyclictest26252-21runrttasks21:38:113
21434996714,12cyclictest1169-21seq23:03:483
21434996714,11cyclictest536-21seq20:42:433
21434996714,11cyclictest28533-21seq20:34:543
21434996713,10cyclictest12758-21seq22:18:193
21434996710,11cyclictest23759-21runrttasks20:22:343
21434996614,11cyclictest1639-21seq00:14:533
21434996614,10cyclictest8503-21seq00:28:333
21434996614,10cyclictest16861-21seq20:08:343
21434996613,13cyclictest24272-21taskset23:53:113
21434996613,11cyclictest3011-21seq20:46:043
21434996613,10cyclictest19368-21runrttasks21:24:033
21434996612,12cyclictest7339-21taskset19:47:163
21434996612,12cyclictest7339-21taskset19:47:163
21433996632,7cyclictest33-21ksoftirqd/222:50:162
21431996631,5cyclictest9-21ksoftirqd/022:00:000
2143499656,6cyclictest134491ptp4l19:40:443
21434996514,10cyclictest12185-21taskset21:05:393
21434996513,12cyclictest29040-21taskset00:02:313
21434996513,12cyclictest15439-21taskset22:25:063
21434996513,11cyclictest21222-21taskset20:15:383
21434996511,10cyclictest21586-21runrttasks21:27:563
21434996510,10cyclictest6126-21runrttasks00:22:353
21434996315,10cyclictest18923-21seq20:10:383
21434996313,11cyclictest14613-21taskset20:04:113
21434996213,12cyclictest26122-21seq20:28:243
21434996213,11cyclictest31088-21taskset21:48:203
21434996213,11cyclictest13249-21taskset00:37:543
21434996213,11cyclictest1005-21seq21:53:523
21434996212,11cyclictest7591-21taskset20:55:563
21434996114,12cyclictest2589-21taskset19:35:363
21434996113,11cyclictest19767-21taskset22:34:323
21434996113,11cyclictest16768-21taskset21:15:333
21434996113,10cyclictest14473-21seq21:10:353
2143499609,16cyclictest28764-21taskset22:51:093
21434996014,11cyclictest21861-21taskset23:47:313
21434996014,11cyclictest10466-21seq23:23:553
21434996013,12cyclictest3382-21taskset23:06:463
21434996012,12cyclictest5781-21taskset23:13:013
21431996028,5cyclictest9-21ksoftirqd/022:55:010
134491600,6ptp4l0-21swapper/219:05:192
2143499597,10cyclictest32763-21sshd19:32:103
21434995914,10cyclictest3778-21seq00:17:103
21434995914,10cyclictest31321-21seq22:59:273
21431995911,5cyclictest9-21ksoftirqd/021:10:200
21434995814,11cyclictest30585-21seq20:36:503
21434995814,11cyclictest17416-21seq23:39:433
21434995812,11cyclictest14829-21runrttasks23:31:053
21434995811,11cyclictest26000-21runrttasks19:19:033
21431995831,3cyclictest9-21ksoftirqd/022:55:280
21431995826,7cyclictest9-21ksoftirqd/020:56:110
21431995826,3cyclictest9-21ksoftirqd/023:57:070
21431995826,3cyclictest9-21ksoftirqd/021:04:320
21431995825,3cyclictest9-21ksoftirqd/000:35:100
21431995822,6cyclictest9-21ksoftirqd/022:30:250
134491580,5ptp4l0-21swapper/000:00:050
134491580,4ptp4l0-21swapper/122:35:191
2143499574,16cyclictest13613-21cut22:20:173
21434995710,10cyclictest0-21swapper/300:06:533
2143399573,10cyclictest0-21swapper/200:07:572
21431995724,6cyclictest9-21ksoftirqd/022:04:380
21431995722,5cyclictest9-21ksoftirqd/000:30:150
134491570,4ptp4l0-21swapper/121:10:271
134491570,3ptp4l0-21swapper/219:50:182
134491570,3ptp4l0-21swapper/000:15:260
21434995614,10cyclictest12541-21seq23:26:123
2143399562,6cyclictest33-21ksoftirqd/200:15:012
21431995629,6cyclictest9-21ksoftirqd/000:05:260
134491560,3ptp4l0-21swapper/121:45:151
21433995528,9cyclictest33-21ksoftirqd/200:25:162
2143399552,7cyclictest33-21ksoftirqd/222:10:142
21431995525,2cyclictest9-21ksoftirqd/023:16:020
21431995525,2cyclictest9-21ksoftirqd/022:41:080
21431995521,3cyclictest9-21ksoftirqd/000:20:070
134491550,3ptp4l0-21swapper/221:50:282
134491550,3ptp4l0-21swapper/119:55:251
21434995412,12cyclictest22361-21chrt22:40:083
21434995412,11cyclictest9534-21runrttasks19:51:053
2143399543,6cyclictest27248-21sed21:40:192
2143399540,6cyclictest28566-21idleruntime-cro20:35:012
21431995426,3cyclictest9-21ksoftirqd/019:30:450
21431995421,5cyclictest9-21ksoftirqd/019:20:010
21431995420,3cyclictest9-21ksoftirqd/022:09:200
134491540,4ptp4l0-21swapper/100:25:271
21434995311,11cyclictest11934-21runrttasks19:57:193
21433995323,4cyclictest33-21ksoftirqd/200:15:142
21431995325,3cyclictest9-21ksoftirqd/023:09:210
2143499526,8cyclictest7368-21ntp_states22:05:243
2143399525,9cyclictest33-21ksoftirqd/221:45:262
2143399525,8cyclictest33-21ksoftirqd/222:30:272
2143399524,8cyclictest33-21ksoftirqd/222:25:282
2143399521,6cyclictest33-21ksoftirqd/220:00:272
2143399520,5cyclictest0-21swapper/219:35:242
21431995229,11cyclictest9-21ksoftirqd/023:25:000
21431995225,3cyclictest9-21ksoftirqd/023:40:420
21431995223,5cyclictest9-21ksoftirqd/020:20:270
134491520,4ptp4l0-21swapper/220:09:432
134491520,4ptp4l0-21swapper/219:20:172
134491520,4ptp4l0-21swapper/121:18:191
134491520,4ptp4l0-21swapper/120:25:451
21434995111,11cyclictest11085-21runrttasks00:34:313
2143399515,8cyclictest33-21ksoftirqd/223:29:592
2143399514,10cyclictest18113-21fschecks_time23:40:162
2143399513,6cyclictest33-21ksoftirqd/220:45:022
2143399512,6cyclictest0-21swapper/219:40:172
2143399512,5cyclictest33-21ksoftirqd/222:20:182
2143399512,10cyclictest0-21swapper/223:31:332
2143399511,6cyclictest33-21ksoftirqd/221:10:202
2143399511,5cyclictest0-21swapper/223:05:252
2143199512,7cyclictest101ktimersoftd/020:00:010
2143199512,6cyclictest23871-21ls23:50:280
2143199512,6cyclictest0-21swapper/000:25:250
21431995126,3cyclictest9-21ksoftirqd/020:45:550
21431995123,3cyclictest9-21ksoftirqd/020:09:020
2143199511,6cyclictest9-21ksoftirqd/019:50:220
134491510,3ptp4l0-21swapper/123:56:471
134491510,3ptp4l0-21swapper/123:39:051
134491510,3ptp4l0-21swapper/119:26:431
2143399505,9cyclictest33-21ksoftirqd/221:15:202
2143399505,8cyclictest33-21ksoftirqd/222:45:282
2143399503,6cyclictest33-21ksoftirqd/219:45:202
2143399503,6cyclictest33-21ksoftirqd/219:45:202
2143399503,5cyclictest33-21ksoftirqd/221:20:192
2143399502,6cyclictest33-21ksoftirqd/220:25:162
2143399502,11cyclictest0-21swapper/220:40:132
2143399500,7cyclictest33-21ksoftirqd/220:55:172
2143399500,6cyclictest33-21ksoftirqd/200:20:212
2143399500,4cyclictest0-21swapper/223:15:232
2143199505,6cyclictest9-21ksoftirqd/023:35:170
2143199504,7cyclictest9-21ksoftirqd/021:50:140
2143199504,5cyclictest4816-21cat23:10:180
2143199503,5cyclictest9-21ksoftirqd/020:50:190
21431995026,2cyclictest9-21ksoftirqd/020:02:460
2143199501,6cyclictest9-21ksoftirqd/020:15:000
2143199501,6cyclictest101ktimersoftd/021:15:200
134491500,4ptp4l0-21swapper/020:25:110
134491500,3ptp4l0-21swapper/121:24:471
134491500,3ptp4l0-21swapper/021:23:280
2143399495,8cyclictest33-21ksoftirqd/220:35:182
2143399495,4cyclictest33-21ksoftirqd/220:10:222
2143399493,5cyclictest33-21ksoftirqd/223:00:282
2143399492,8cyclictest33-21ksoftirqd/200:00:332
2143399492,6cyclictest33-21ksoftirqd/219:10:192
2143399492,6cyclictest33-21ksoftirqd/219:10:192
2143399492,6cyclictest0-21swapper/223:45:172
2143399491,6cyclictest33-21ksoftirqd/222:05:262
2143399490,14cyclictest33-21ksoftirqd/220:20:252
2143199495,7cyclictest24112-21idleruntime-cro21:35:000
2143199494,7cyclictest9-21ksoftirqd/022:20:210
2143199494,3cyclictest32078-21hwlatdetect23:00:190
2143199492,5cyclictest9-21ksoftirqd/019:10:250
2143199492,5cyclictest9-21ksoftirqd/019:10:250
21431994925,6cyclictest9-21ksoftirqd/022:45:290
2143199490,7cyclictest9-21ksoftirqd/021:40:260
2143199490,6cyclictest19681-21/usr/sbin/munin21:25:230
2143199490,5cyclictest11019-21cat21:05:180
2143199490,5cyclictest101ktimersoftd/023:30:160
134491490,4ptp4l0-21swapper/019:29:210
134491490,3ptp4l0-21swapper/023:28:390
21434994810,10cyclictest21438-21chrt19:10:043
21434994810,10cyclictest21438-21chrt19:10:043
2143399486,8cyclictest23183-21cut23:50:202
2143399482,5cyclictest33-21ksoftirqd/219:15:272
2143399480,6cyclictest33-21ksoftirqd/223:35:192
2143199485,7cyclictest9-21ksoftirqd/020:30:250
2143199485,6cyclictest20767-21irqrtprio22:35:190
2143199485,5cyclictest9-21ksoftirqd/019:15:140
2143199485,4cyclictest9-21ksoftirqd/022:15:140
2143199484,5cyclictest9-21ksoftirqd/023:45:130
2143199484,2cyclictest121rcu_preempt00:10:270
2143199482,5cyclictest16553-21ntpq22:25:230
21431994823,2cyclictest9-21ksoftirqd/020:41:100
2143199480,45cyclictest101ktimersoftd/021:35:190
134491480,4ptp4l0-21swapper/123:08:541
134491480,3ptp4l0-21swapper/119:50:221
21434994711,11cyclictest3498-21taskset21:57:403
21434994711,11cyclictest19546-21taskset23:42:223
21434994710,8cyclictest10466-21taskset22:13:243
2143399475,3cyclictest121rcu_preempt20:50:192
2143399472,10cyclictest33-21ksoftirqd/220:16:432
2143399470,6cyclictest33-21ksoftirqd/222:41:282
2143199473,5cyclictest9-21ksoftirqd/022:10:190
2143199472,5cyclictest9-21ksoftirqd/021:45:180
21431994717,7cyclictest9-21ksoftirqd/020:15:210
2143199470,5cyclictest101ktimersoftd/020:35:170
134491470,4ptp4l0-21swapper/121:59:571
2143399462,5cyclictest33-21ksoftirqd/222:35:192
2143399462,5cyclictest0-21swapper/222:15:252
21433994610,5cyclictest33-21ksoftirqd/222:55:192
2143399460,6cyclictest33-21ksoftirqd/223:20:252
2143399460,6cyclictest33-21ksoftirqd/221:00:142
2143399460,5cyclictest33-21ksoftirqd/221:31:142
21431994621,2cyclictest9-21ksoftirqd/019:37:470
134491460,11ptp4l0-21swapper/323:17:473
2143399451,6cyclictest33-21ksoftirqd/222:01:072
2143399450,6cyclictest33-21ksoftirqd/200:35:012
2143399450,5cyclictest33-21ksoftirqd/223:10:152
2143299454,3cyclictest121rcu_preempt22:50:001
21431994524,3cyclictest9-21ksoftirqd/019:46:500
21431994524,3cyclictest9-21ksoftirqd/019:46:500
2143199450,8cyclictest101ktimersoftd/019:45:000
134491450,5ptp4l0-21swapper/119:09:081
134491450,3ptp4l0-21swapper/123:25:171
2143399440,5cyclictest33-21ksoftirqd/219:25:232
134491440,5ptp4l0-21swapper/319:05:093
134491440,4ptp4l0-21swapper/122:21:421
134491440,4ptp4l0-21swapper/100:04:221
134491440,3ptp4l26667-21apt-get21:40:123
21434994311,11cyclictest9877-21runrttasks21:00:323
2143399432,7cyclictest0-21swapper/200:35:222
2143399431,6cyclictest0-21swapper/219:57:482
21432994338,3cyclictest25-21ksoftirqd/122:34:591
134491430,4ptp4l0-21swapper/122:10:471
134491430,4ptp4l0-21swapper/100:13:071
134491430,3ptp4l0-21swapper/120:51:101
134491420,9ptp4l0-21swapper/221:09:022
134491420,4ptp4l2318-21gnome-shell21:25:592
134491420,4ptp4l12634-21apt-get20:00:151
134491420,10ptp4l0-21swapper/219:34:322
2143399412,5cyclictest33-21ksoftirqd/221:35:252
2143399410,6cyclictest321ktimersoftd/223:55:192
21432994137,2cyclictest25-21ksoftirqd/119:45:001
21432994135,4cyclictest25-21ksoftirqd/121:40:001
134491410,6ptp4l0-21swapper/019:09:580
134491410,5ptp4l10911-21/usr/sbin/munin21:05:161
134491410,4ptp4l6082-21df20:55:131
134491410,4ptp4l31642-21apt-get23:00:141
134491410,4ptp4l29743-21meminfo20:35:191
134491410,4ptp4l0-21swapper/122:27:171
134491410,4ptp4l0-21swapper/121:28:541
134491410,4ptp4l0-21swapper/119:24:111
21432994035,3cyclictest25-21ksoftirqd/121:45:001
21432994035,3cyclictest25-21ksoftirqd/100:10:001
134491400,4ptp4l4489-21df00:20:151
134491400,4ptp4l32611-21users19:30:291
134491400,4ptp4l31414-21df_inode20:40:131
134491400,4ptp4l29893-21iostat_ios22:55:181
134491400,4ptp4l0-21swapper/121:53:531
134491400,4ptp4l0-21swapper/120:34:591
134491400,4ptp4l0-21swapper/119:18:541
134491400,3ptp4l2074-21irqstats20:45:191
134491400,2ptp4l3001-21strings00:15:221
2143399390,6cyclictest2676-21strings21:55:202
21432993934,3cyclictest25-21ksoftirqd/120:25:001
21432993934,3cyclictest25-21ksoftirqd/120:05:151
134491390,4ptp4l6709-21if_enp4s023:15:181
134491390,4ptp4l21032-21/usr/sbin/munin23:45:221
134491390,4ptp4l13047-21users00:35:291
134491390,4ptp4l11269-21hddtemp_smartct22:15:151
134491390,4ptp4l0-21swapper/122:50:211
134491390,4ptp4l0-21swapper/121:33:231
134491390,4ptp4l0-21swapper/120:17:251
134491390,4ptp4l0-21swapper/120:12:591
134491390,4ptp4l0-21swapper/119:45:151
134491390,4ptp4l0-21swapper/119:45:151
134491390,4ptp4l0-21swapper/100:30:521
134491390,3ptp4l8616-21hddtemp_smartct21:00:171
134491390,3ptp4l1399-21iostat19:35:191
134491390,3ptp4l13406-21df_inode23:30:161
134491380,4ptp4l0-21swapper/123:50:211
134491380,4ptp4l0-21swapper/122:40:171
134491380,4ptp4l0-21swapper/122:03:231
134491380,3ptp4l5005-21ntp_states23:10:231
134491380,3ptp4l0-21swapper/319:26:133
134491370,4ptp4l0-21swapper/123:40:191
134491370,4ptp4l0-21swapper/123:20:151
134491370,4ptp4l0-21swapper/122:06:401
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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