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2026-08-01 - 03:48
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackbslot6.osadl.org (updated Sat Aug 01, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3053521740,4sleep33274099cyclictest01:33:343
2072821610,4sleep03272399cyclictest00:51:040
1068911480,4ptp4l401ktimersoftd/321:14:203
104772930,2sleep20-21swapper/223:33:292
3272399650,31cyclictest18071-21ssh02:28:380
309392640,7sleep030942-21fschecks_time21:13:210
17782640,4sleep13272999cyclictest01:03:451
3272399611,34cyclictest8962-21/usr/sbin/munin23:33:270
3272399610,27cyclictest24544-21fschecks_count01:28:240
325342614,10sleep20-21swapper/221:16:512
3272399602,24cyclictest25234-21missed_timers23:13:270
324762604,10sleep10-21swapper/121:16:061
106891600,1ptp4l401ktimersoftd/301:53:573
3272399591,25cyclictest23446-21irqstats22:03:220
25612590,4sleep33274099cyclictest02:46:463
106891580,1ptp4l401ktimersoftd/300:21:353
32740995448,3cyclictest41-21ksoftirqd/301:38:223
32740995347,3cyclictest41-21ksoftirqd/322:18:233
163802530,1sleep00-21swapper/001:18:460
163802530,1sleep00-21swapper/001:18:460
106891530,1ptp4l401ktimersoftd/301:02:503
32740995145,3cyclictest41-21ksoftirqd/301:28:213
32740995144,3cyclictest41-21ksoftirqd/301:03:203
3272399511,38cyclictest15820-21apt-get00:13:190
32740994943,3cyclictest41-21ksoftirqd/322:13:193
32740994942,4cyclictest41-21ksoftirqd/322:53:183
133832490,2sleep30-21swapper/300:09:353
32740994840,4cyclictest41-21ksoftirqd/321:23:153
32740994824,3cyclictest41-21ksoftirqd/323:38:233
32740994823,3cyclictest41-21ksoftirqd/300:43:243
3272399482,42cyclictest18647-21cat23:43:070
106891480,1ptp4l401ktimersoftd/300:52:323
106891480,1ptp4l401ktimersoftd/300:27:063
106891470,1ptp4l401ktimersoftd/321:53:123
32740994520,4cyclictest41-21ksoftirqd/300:40:403
3272399453,34cyclictest28688-21apt-get23:53:190
106891450,1ptp4l401ktimersoftd/323:32:373
32740994435,5cyclictest41-21ksoftirqd/321:58:213
32740994330,3cyclictest41-21ksoftirqd/323:33:353
32740994319,3cyclictest41-21ksoftirqd/300:33:253
32740994225,7cyclictest41-21ksoftirqd/302:18:103
32740994218,4cyclictest41-21ksoftirqd/321:38:223
32740994218,4cyclictest41-21ksoftirqd/321:38:223
3272399422,33cyclictest18857-21apt-get23:43:190
106891420,1ptp4l401ktimersoftd/323:53:223
32740994136,3cyclictest41-21ksoftirqd/301:18:223
32740994136,3cyclictest41-21ksoftirqd/301:18:223
32740994128,4cyclictest41-21ksoftirqd/302:33:323
32740994118,4cyclictest41-21ksoftirqd/321:18:153
32740994111,7cyclictest41-21ksoftirqd/322:08:193
3272399412,31cyclictest538-21apt-get21:18:140
3272399412,25cyclictest6165-21cpuspeed_turbos00:03:210
3272399411,33cyclictest16166-21apt-get01:53:220
3272399411,21cyclictest0-21swapper/002:45:280
3272399410,8cyclictest12448-21irqrtprio02:23:290
32740994026,4cyclictest41-21ksoftirqd/302:08:103
3272399401,31cyclictest12579-21apt-get00:43:180
3272399401,25cyclictest29837-21/usr/sbin/munin22:18:320
3272399401,23cyclictest0-21swapper/023:28:360
106891400,1ptp4l401ktimersoftd/302:01:273
106891400,1ptp4l401ktimersoftd/301:15:453
32740993925,3cyclictest41-21ksoftirqd/301:48:233
32740993916,7cyclictest41-21ksoftirqd/301:46:133
32740993916,4cyclictest41-21ksoftirqd/323:51:393
32740993915,4cyclictest41-21ksoftirqd/300:30:413
32740993914,4cyclictest41-21ksoftirqd/323:58:243
32740993914,4cyclictest41-21ksoftirqd/301:08:223
3272399392,31cyclictest24957-21apt-get22:08:160
3272399392,29cyclictest6579-21apt-get02:18:170
32723993914,22cyclictest14507-21sh01:51:000
3272399391,31cyclictest23801-21apt-get23:48:200
3272399390,3cyclictest26608-21grep02:03:280
106891390,1ptp4l401ktimersoftd/322:38:093
106891390,1ptp4l401ktimersoftd/302:20:173
106891390,1ptp4l401ktimersoftd/302:10:433
106891390,1ptp4l401ktimersoftd/301:26:463
32740993832,3cyclictest41-21ksoftirqd/322:33:093
32740993832,3cyclictest41-21ksoftirqd/321:33:173
32740993832,3cyclictest41-21ksoftirqd/321:33:173
3274099382,4cyclictest121rcu_preempt02:42:353
32740993813,4cyclictest41-21ksoftirqd/323:22:563
32740993813,4cyclictest41-21ksoftirqd/323:22:563
3273499380,5cyclictest233-21systemd-journal00:03:072
3272399382,29cyclictest6420-21apt-get01:43:210
32723993813,22cyclictest27606-21awk02:38:310
106891380,1ptp4l401ktimersoftd/323:43:133
32740993715,7cyclictest41-21ksoftirqd/300:03:373
32740993713,4cyclictest41-21ksoftirqd/302:28:573
32740993712,4cyclictest41-21ksoftirqd/300:15:113
32740993711,4cyclictest41-21ksoftirqd/302:23:263
32729993724,7cyclictest25-21ksoftirqd/102:23:221
3272399373,27cyclictest7408-21apt-get22:38:160
3272399372,29cyclictest19469-21apt-get23:03:170
32723993713,21cyclictest22886-21cat00:53:230
3272399371,30cyclictest10966-21apt-get00:08:190
32723993712,21cyclictest19165-21latency_hist23:03:050
3272399370,4cyclictest11590-21ssh01:13:510
3274099368,7cyclictest41-21ksoftirqd/323:08:223
32740993626,3cyclictest41-21ksoftirqd/322:43:363
32740993625,9cyclictest41-21ksoftirqd/300:53:253
32740993621,6cyclictest41-21ksoftirqd/321:43:293
32740993620,5cyclictest41-21ksoftirqd/322:23:223
32740993620,3cyclictest41-21ksoftirqd/323:13:303
32740993615,7cyclictest41-21ksoftirqd/322:48:273
32740993612,4cyclictest41-21ksoftirqd/322:58:243
32734993629,4cyclictest10408-21cron21:38:032
32734993629,4cyclictest10408-21cron21:38:032
3272399362,29cyclictest30788-21apt-get02:08:210
3272399362,28cyclictest9773-21apt-get22:43:180
3272399362,28cyclictest21562-21apt-get02:33:230
32723993613,20cyclictest26295-21diskmemload23:19:510
32723993613,20cyclictest26295-21diskmemload23:19:510
3272399361,30cyclictest20660-21apt-get00:18:190
32723993612,21cyclictest27111-21/usr/sbin/munin00:58:260
3272399360,3cyclictest26295-21diskmemload01:10:150
3272399360,33cyclictest0-21swapper/001:39:010
106891360,1ptp4l401ktimersoftd/323:26:143
32740993529,3cyclictest41-21ksoftirqd/322:28:193
32740993525,3cyclictest41-21ksoftirqd/321:28:343
3272399358,23cyclictest28259-21irqrtprio22:13:260
3272399351,29cyclictest31654-21apt-get01:03:120
3272399351,28cyclictest30403-21apt-get00:28:190
3272399351,28cyclictest0-21swapper/021:48:150
3272399351,28cyclictest0-21swapper/021:28:160
32723993512,20cyclictest26295-21diskmemload00:27:500
32723993511,21cyclictest6334-21date02:18:100
3272399350,2cyclictest0-21swapper/022:23:150
3272399350,2cyclictest0-21swapper/000:33:300
32740993428,3cyclictest41-21ksoftirqd/323:03:243
32740993428,3cyclictest41-21ksoftirqd/321:53:043
3272399349,21cyclictest4739-21phc2sys-jitter21:23:240
3272399347,23cyclictest8662-21cut00:38:250
3272399343,25cyclictest13089-21apt-get21:43:160
3272399342,27cyclictest31617-21ssh23:23:190
3272399341,27cyclictest10720-21apt-get21:38:140
3272399341,27cyclictest10720-21apt-get21:38:140
3272399340,3cyclictest2422-21ssh23:58:290
3272399340,3cyclictest20132-21/usr/sbin/munin21:58:310
3272399340,31cyclictest26295-21diskmemload01:25:490
32734993327,3cyclictest33-21ksoftirqd/222:38:052
32734993327,3cyclictest33-21ksoftirqd/222:13:042
32734993327,3cyclictest33-21ksoftirqd/222:08:042
3272399339,21cyclictest14447-21/usr/sbin/munin22:53:240
3272399331,28cyclictest4317-21apt-get22:33:090
3272399331,27cyclictest29074-21apt-get01:33:210
32723993310,20cyclictest2652-21grep22:28:170
3272399330,29cyclictest18343-21cat21:53:210
32734993226,3cyclictest33-21ksoftirqd/221:58:222
32734993226,3cyclictest33-21ksoftirqd/201:43:092
32734993222,8cyclictest33-21ksoftirqd/202:03:242
32729993223,5cyclictest25-21ksoftirqd/101:18:211
32729993223,5cyclictest25-21ksoftirqd/101:18:211
3272399322,26cyclictest0-21swapper/022:48:160
3272399321,28cyclictest20948-21munin-node01:58:200
32723993210,19cyclictest639-21cron21:38:030
32723993210,19cyclictest639-21cron21:38:030
32740993126,3cyclictest41-21ksoftirqd/322:03:243
32734993126,3cyclictest33-21ksoftirqd/223:53:062
32734993126,3cyclictest33-21ksoftirqd/222:58:052
32734993126,3cyclictest33-21ksoftirqd/202:28:102
32734993126,3cyclictest33-21ksoftirqd/200:58:072
32734993125,3cyclictest33-21ksoftirqd/201:48:092
32734993121,8cyclictest33-21ksoftirqd/200:08:252
3272399312,24cyclictest21856-21apt-get23:08:180
32734993023,4cyclictest33-21ksoftirqd/200:28:262
32734993016,3cyclictest33-21ksoftirqd/200:33:352
3272999304,16cyclictest0-21swapper/100:23:201
3272999303,16cyclictest29089-21sh01:33:211
32729993023,4cyclictest16576-21cron22:58:051
3273499292,4cyclictest33-21ksoftirqd/222:23:052
32734992924,3cyclictest33-21ksoftirqd/223:38:252
32734992924,3cyclictest33-21ksoftirqd/221:28:032
32734992924,3cyclictest33-21ksoftirqd/201:48:272
32734992924,3cyclictest33-21ksoftirqd/201:23:082
32734992924,3cyclictest33-21ksoftirqd/201:23:082
32734992924,3cyclictest33-21ksoftirqd/200:58:272
32734992918,9cyclictest33-21ksoftirqd/201:56:202
32734992823,3cyclictest33-21ksoftirqd/223:48:072
32734992823,3cyclictest33-21ksoftirqd/223:33:062
32734992823,3cyclictest33-21ksoftirqd/221:48:162
32734992823,3cyclictest33-21ksoftirqd/200:48:202
32734992822,4cyclictest33-21ksoftirqd/202:18:222
32734992822,3cyclictest33-21ksoftirqd/222:13:202
32734992822,3cyclictest33-21ksoftirqd/200:03:262
3273499280,5cyclictest8176-21grep00:38:232
32729992823,3cyclictest25-21ksoftirqd/123:08:051
303592280,2sleep20-21swapper/223:21:402
303592280,2sleep20-21swapper/223:21:402
32734992722,3cyclictest33-21ksoftirqd/200:13:262
32734992721,3cyclictest33-21ksoftirqd/201:23:362
3272999273,15cyclictest30791-21ssh02:08:211
32729992717,5cyclictest25-21ksoftirqd/102:18:171
3272999270,2cyclictest121rcu_preempt22:03:181
2669622720,3sleep125-21ksoftirqd/102:38:261
3273499264,3cyclictest121rcu_preempt02:31:402
32734992621,3cyclictest33-21ksoftirqd/223:08:052
32734992621,3cyclictest33-21ksoftirqd/221:43:232
32734992621,3cyclictest33-21ksoftirqd/202:08:232
32734992621,3cyclictest33-21ksoftirqd/202:03:092
32734992621,3cyclictest33-21ksoftirqd/200:28:072
32734992620,3cyclictest33-21ksoftirqd/221:39:252
32734992620,3cyclictest33-21ksoftirqd/221:39:252
32734992620,3cyclictest33-21ksoftirqd/221:18:162
32734992620,3cyclictest33-21ksoftirqd/202:33:282
32734992620,3cyclictest33-21ksoftirqd/201:03:262
32734992615,10cyclictest33-21ksoftirqd/200:18:102
32734992613,10cyclictest33-21ksoftirqd/223:53:202
32729992620,3cyclictest25-21ksoftirqd/101:43:031
32734992521,3cyclictest33-21ksoftirqd/222:58:192
32734992520,3cyclictest33-21ksoftirqd/223:28:052
32734992520,3cyclictest33-21ksoftirqd/223:13:232
32734992520,3cyclictest33-21ksoftirqd/222:23:332
32734992520,3cyclictest33-21ksoftirqd/201:13:282
32734992519,3cyclictest33-21ksoftirqd/223:08:222
32734992519,3cyclictest33-21ksoftirqd/222:33:052
32734992519,3cyclictest33-21ksoftirqd/221:58:042
32734992519,3cyclictest33-21ksoftirqd/201:28:222
32734992512,11cyclictest33-21ksoftirqd/222:48:182
3272999254,13cyclictest21206-21snmpd22:08:171
3272999252,13cyclictest13974-21ssh23:38:191
32729992520,3cyclictest25-21ksoftirqd/101:53:281
32729992519,3cyclictest25-21ksoftirqd/122:51:141
32734992418,3cyclictest33-21ksoftirqd/222:47:082
32734992417,4cyclictest33-21ksoftirqd/202:43:282
32734992417,4cyclictest29088-21sh01:33:212
3272999242,13cyclictest28697-21ssh23:53:181
32729992419,3cyclictest25-21ksoftirqd/121:23:051
32729992418,3cyclictest25-21ksoftirqd/121:29:581
32729992418,3cyclictest25-21ksoftirqd/102:02:591
32729992417,4cyclictest27622-21grep02:03:391
32729992318,3cyclictest8871-21ssh01:12:341
32729992318,3cyclictest25-21ksoftirqd/102:37:441
32729992318,3cyclictest25-21ksoftirqd/100:33:311
32729992317,3cyclictest25-21ksoftirqd/123:01:001
32729992317,3cyclictest25-21ksoftirqd/122:30:191
32729992317,3cyclictest25-21ksoftirqd/122:01:061
3272999222,12cyclictest30414-21ssh00:28:191
32729992217,3cyclictest25-21ksoftirqd/121:50:461
32729992217,3cyclictest25-21ksoftirqd/102:30:221
32729992216,4cyclictest25-21ksoftirqd/123:14:331
32729992216,4cyclictest25-21ksoftirqd/101:48:021
32729992216,3cyclictest25-21ksoftirqd/122:27:081
3272999221,18cyclictest20692-21head23:43:361
32734992116,3cyclictest33-21ksoftirqd/222:38:182
32734992115,4cyclictest33-21ksoftirqd/221:31:322
32734992115,3cyclictest33-21ksoftirqd/200:43:222
3272999218,10cyclictest12794-21expr00:43:201
32729992116,3cyclictest25-21ksoftirqd/123:33:061
32729992116,3cyclictest25-21ksoftirqd/122:38:201
32729992115,4cyclictest8437-21irqrtprio00:38:251
32729992115,3cyclictest25-21ksoftirqd/122:19:121
32729992115,3cyclictest25-21ksoftirqd/121:21:541
32729992114,4cyclictest19224-21awk00:48:361
32729992114,4cyclictest12657-21find01:48:311
32734992014,3cyclictest33-21ksoftirqd/202:42:052
32729992015,3cyclictest25-21ksoftirqd/101:13:131
32729992014,4cyclictest25-21ksoftirqd/121:45:531
32729992014,3cyclictest9696-21/usr/sbin/munin22:43:281
32729992014,3cyclictest1055-21runrttasks00:59:211
32729992013,4cyclictest8585-21ls21:33:181
32729992013,4cyclictest8585-21ls21:33:181
32729992013,4cyclictest5863-21sed22:33:261
32729992013,4cyclictest25-21ksoftirqd/123:08:111
32729992013,4cyclictest22093-21sh00:18:311
32729992013,4cyclictest1055-21runrttasks23:23:161
3272999201,16cyclictest25265-21snmp_o5powerctl23:48:341
32729992010,7cyclictest12784-21unixbench_singl00:08:371
255092200,2sleep10-21swapper/101:28:311
32734991914,3cyclictest33-21ksoftirqd/201:08:272
32734991912,4cyclictest3722-21sh02:14:162
3272999197,9cyclictest0-21swapper/100:15:431
32729991913,3cyclictest8808-21sh00:05:051
32729991913,3cyclictest3952-21sh02:14:391
32729991912,4cyclictest32708-21mailstats02:43:321
32729991912,4cyclictest18140-21fschecks_count21:53:201
32729991910,5cyclictest22768-21gltestperf00:53:221
3272999190,16cyclictest0-21swapper/123:36:031
32729991813,3cyclictest4143-21sh00:00:281
32729991812,4cyclictest25-21ksoftirqd/123:18:221
32729991812,4cyclictest25-21ksoftirqd/123:18:221
32729991812,3cyclictest11154-21gltestperf21:38:181
32729991812,3cyclictest11154-21gltestperf21:38:181
32729991811,4cyclictest19440-21cpuspeed_turbos01:23:231
3272999170,16cyclictest0-21swapper/122:13:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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