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2025-12-11 - 19:11
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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 highest latencies:
System rackbslot6.osadl.org (updated Thu Dec 11, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2380021820,4sleep22400199cyclictest13:46:582
2002221790,3sleep02398999cyclictest13:43:220
2250521680,5sleep12399699cyclictest11:13:201
2250521680,5sleep12399699cyclictest11:13:201
2984421590,5sleep02398999cyclictest13:16:490
1773911000,3ptp4l401ktimersoftd/308:24:453
177391730,1ptp4l401ktimersoftd/313:55:083
177391720,1ptp4l401ktimersoftd/313:01:033
177391660,1ptp4l401ktimersoftd/313:32:253
75962650,2sleep07600-21cut08:58:220
201212640,2sleep20-21swapper/212:25:362
138292630,4sleep02398999cyclictest10:18:310
83082620,4sleep2321ktimersoftd/208:58:322
136822620,2sleep30-21swapper/313:35:313
177391600,1ptp4l401ktimersoftd/312:24:353
236392594,10sleep20-21swapper/208:24:512
177391590,1ptp4l401ktimersoftd/313:17:553
156722590,4sleep215671-21tail11:03:382
175792580,2sleep00-21swapper/009:18:250
89482570,2sleep00-21swapper/010:08:270
169322560,2sleep30-21swapper/310:28:063
23996995311,31cyclictest7066-21users10:03:451
126312510,2sleep20-21swapper/212:56:192
23996995043,4cyclictest24003-21cat08:28:031
23996995011,27cyclictest10936-21seq09:05:171
177391480,1ptp4l401ktimersoftd/311:15:563
177391480,1ptp4l401ktimersoftd/311:15:563
2399699479,35cyclictest25215-21grep13:48:251
188262470,3sleep30-21swapper/311:08:243
177391470,1ptp4l401ktimersoftd/310:37:263
23996994622,21cyclictest10513-21ssh13:33:011
177391460,1ptp4l401ktimersoftd/309:28:563
177391460,1ptp4l401ktimersoftd/309:28:563
2370924527,8sleep00-21swapper/008:25:460
177391450,1ptp4l401ktimersoftd/311:42:533
177391430,1ptp4l401ktimersoftd/311:03:093
177391430,10ptp4l401ktimersoftd/310:48:573
177391400,1ptp4l401ktimersoftd/309:53:223
2399699390,4cyclictest2457-21head08:48:191
23989993931,5cyclictest6402-21cron08:58:030
177391390,1ptp4l401ktimersoftd/313:48:413
177391390,1ptp4l401ktimersoftd/309:38:193
24001993812,23cyclictest16921-21ls09:18:212
2399699381,29cyclictest6690-21ssh11:33:191
2399699380,5cyclictest15880-21ls13:38:261
177391380,1ptp4l401ktimersoftd/313:40:193
177391380,1ptp4l401ktimersoftd/313:18:513
177391380,1ptp4l401ktimersoftd/313:08:583
177391380,1ptp4l401ktimersoftd/313:08:583
177391380,1ptp4l401ktimersoftd/311:56:093
177391380,1ptp4l401ktimersoftd/311:33:273
177391380,1ptp4l401ktimersoftd/311:26:263
177391380,1ptp4l401ktimersoftd/310:58:583
177391380,1ptp4l401ktimersoftd/310:08:253
2399699372,31cyclictest29701-21cpuspeed_turbos12:38:221
2399699370,5cyclictest15285-21snmp_o5powerctl12:58:331
177391370,1ptp4l401ktimersoftd/313:48:103
177391370,1ptp4l401ktimersoftd/313:25:043
177391370,1ptp4l401ktimersoftd/312:50:133
177391370,1ptp4l401ktimersoftd/311:58:563
177391370,1ptp4l401ktimersoftd/311:31:543
177391370,1ptp4l401ktimersoftd/311:20:483
177391370,1ptp4l401ktimersoftd/311:20:483
177391370,1ptp4l401ktimersoftd/310:55:183
177391370,1ptp4l401ktimersoftd/310:38:233
177391370,0ptp4l401ktimersoftd/312:42:513
24001993611,22cyclictest6127-21expr12:48:262
24001993611,22cyclictest3513-21cat08:48:312
24001993611,21cyclictest921-21grep09:53:212
2400199360,33cyclictest32152-21ssh11:23:302
2399699363,6cyclictest5537-21apt-get10:53:181
23996993620,13cyclictest25-21ksoftirqd/110:20:291
23996993612,20cyclictest9684-21basename12:53:251
2399699360,9cyclictest0-21swapper/112:16:281
2399699360,5cyclictest6559-21cut13:28:101
2399699360,3cyclictest7058-21basename12:48:331
177391360,1ptp4l401ktimersoftd/312:47:583
37862350,1sleep10-21swapper/109:58:251
2400999351,2cyclictest121rcu_preempt12:22:073
2400199353,8cyclictest10983-21apt-get13:33:222
2400199352,7cyclictest0-21swapper/208:33:162
2400199352,30cyclictest6457-21sort08:58:032
24001993514,18cyclictest902-21sh10:47:042
24001993513,18cyclictest9319-21latency12:13:272
2399699353,28cyclictest0-21swapper/109:53:171
23996993512,20cyclictest12165-21latency_hist10:18:061
23996993511,21cyclictest24573-21fschecks_time08:28:181
23996993511,20cyclictest17804-21grep12:23:241
2399699350,4cyclictest29653-21chrt13:16:261
23989993528,4cyclictest2686-21munin-plugin-st09:58:050
177391350,1ptp4l401ktimersoftd/312:05:193
177391350,1ptp4l401ktimersoftd/311:50:273
2400199343,9cyclictest31738-21latency_hist08:43:042
2400199341,5cyclictest1436-21/usr/sbin/munin12:03:312
2399699342,5cyclictest30769-21apt-get11:23:201
2399699342,28cyclictest0-21swapper/112:43:211
23996993418,13cyclictest25-21ksoftirqd/109:18:021
2399699341,7cyclictest25937-21apt-get10:38:181
23996993412,19cyclictest13854-21sh13:35:501
23996993411,20cyclictest27387-21cut11:18:251
23996993411,20cyclictest27387-21cut11:18:251
23996993411,20cyclictest12013-21wc11:38:271
23996993411,20cyclictest0-21swapper/111:08:261
2399699340,4cyclictest1672-21munin-run08:48:031
177391340,2ptp4l18384-21kworker/3:109:25:143
177391340,1ptp4l401ktimersoftd/313:05:033
177391340,1ptp4l401ktimersoftd/313:05:033
2400199332,5cyclictest0-21swapper/209:58:192
2400199331,5cyclictest0-21swapper/212:18:202
24001993312,18cyclictest29068-21cut09:43:242
24001993311,19cyclictest30618-21basename09:48:152
24001993311,19cyclictest10645-21date11:38:072
2400199330,3cyclictest121rcu_preempt10:55:362
2400199330,30cyclictest31701-21ssh12:02:072
2399699337,23cyclictest30690-21cat08:38:231
2399699332,6cyclictest29996-21apt-get10:43:181
2399699332,5cyclictest4156-21apt-get12:08:201
2399699331,29cyclictest29680-21snmp_o5powerctl11:58:311
23996993311,19cyclictest22520-21missed_timers10:33:271
23996993311,19cyclictest1760-21runrttasks09:02:161
23996993310,20cyclictest14294-21fschecks_time11:03:241
2399699330,5cyclictest23678-21snmp_o5powerctl13:08:371
2399699330,5cyclictest23678-21snmp_o5powerctl13:08:371
177391330,2ptp4l18384-21kworker/3:109:51:453
177391330,1ptp4l401ktimersoftd/310:03:383
177391330,11ptp4l401ktimersoftd/308:33:363
2400199329,20cyclictest25214-21fschecks_count13:48:252
2400199328,4cyclictest10408-21cat09:03:272
2400199328,3cyclictest20337-1kworker/u9:113:05:332
2400199328,3cyclictest20337-1kworker/u9:113:05:332
2400199328,3cyclictest16232-21cat09:18:042
2400199326,4cyclictest31505-21unixbench_multi13:53:422
2400199322,5cyclictest0-21swapper/211:18:182
2400199322,5cyclictest0-21swapper/211:18:182
2400199322,4cyclictest0-21swapper/209:33:182
2400199321,27cyclictest16651-21snmp_o5powerctl11:43:332
24001993212,17cyclictest3141-21idleruntime11:28:242
24001993212,17cyclictest29402-21sh12:38:112
2400199321,11cyclictest11478-21gltestperf11:38:242
24001993210,19cyclictest8622-21sh13:28:432
2400199320,12cyclictest20369-21irqrtprio11:48:272
2399699329,20cyclictest27632-21vmstat09:38:341
2399699328,20cyclictest13743-21cat11:03:061
2399699327,3cyclictest24465-21sed11:53:271
2399699327,21cyclictest0-21swapper/111:48:181
2399699324,25cyclictest19205-21tail09:23:191
2399699322,7cyclictest17267-21apt-get10:28:181
2399699322,6cyclictest30821-21apt-get13:18:231
2399699322,4cyclictest0-21swapper/111:28:181
23996993212,17cyclictest9844-21sed10:13:051
23996993210,19cyclictest11158-21apt-get09:08:091
177391320,1ptp4l401ktimersoftd/312:56:143
177391320,1ptp4l401ktimersoftd/312:35:063
177391320,1ptp4l401ktimersoftd/312:30:243
177391320,0ptp4l401ktimersoftd/312:08:463
2400199319,3cyclictest1311-21/usr/sbin/munin12:43:392
2400199317,4cyclictest24336-21cut08:28:152
2400199316,4cyclictest26208-21grep09:38:192
2400199312,6cyclictest25481-21apt-get12:33:212
2400199311,8cyclictest15354-21apt-get13:38:212
2400199311,5cyclictest0-21swapper/210:58:192
2400199311,10cyclictest32212-21snmp_o5powerctl13:18:352
24001993110,18cyclictest26414-21sh13:13:122
2400199310,11cyclictest0-21swapper/211:53:362
2399699318,20cyclictest403-21fschecks_count12:03:241
2399699318,19cyclictest22066-21latency_hist13:08:091
2399699318,19cyclictest22066-21latency_hist13:08:091
2399699317,3cyclictest15277-21grep10:23:221
2399699316,3cyclictest23290-21ls09:33:041
2399699316,3cyclictest23290-21ls09:33:041
2399699311,5cyclictest27222-21grep12:33:491
2399699310,4cyclictest31438-21sed13:53:421
2399699310,4cyclictest21943-21users13:43:421
177391310,9ptp4l401ktimersoftd/309:18:443
177391310,1ptp4l401ktimersoftd/312:14:543
177391310,1ptp4l401ktimersoftd/310:21:103
177391310,1ptp4l401ktimersoftd/310:14:293
177391310,1ptp4l401ktimersoftd/310:00:593
177391310,1ptp4l401ktimersoftd/309:07:063
24009993025,3cyclictest41-21ksoftirqd/310:33:063
2400199308,3cyclictest18679-21iwlist11:08:242
2400199306,4cyclictest636-21dbus-daemon09:08:272
2400199301,8cyclictest5371-21proc_pri12:08:292
24001993013,14cyclictest22216-21hddtemp_smartct12:28:262
2400199300,10cyclictest18803-21/usr/sbin/munin10:28:362
2399699307,5cyclictest26477-21munin-node08:33:041
2399699307,3cyclictest17796-21switchtime09:18:311
2399699306,3cyclictest46950irq/101-ens3-Tx11:43:201
2399699305,5cyclictest5062-21rm10:52:551
2399699304,4cyclictest14492-21/usr/sbin/munin12:18:371
2399699301,5cyclictest24970-21/usr/sbin/munin09:33:331
2399699301,4cyclictest21627-21/usr/sbin/munin12:28:271
23989993024,3cyclictest9-21ksoftirqd/012:00:170
23989993019,8cyclictest9-21ksoftirqd/009:43:040
177391300,0ptp4l401ktimersoftd/308:55:103
177391300,0ptp4l401ktimersoftd/308:51:403
2400199297,4cyclictest19450-21/usr/sbin/munin09:23:212
2400199297,3cyclictest14017-21timerwakeupswit10:18:342
2400199296,4cyclictest21820-21irqrtprio09:28:222
2400199296,4cyclictest21820-21irqrtprio09:28:222
2400199296,3cyclictest18014-21kworker/u8:210:48:212
2400199294,4cyclictest26464-21sort10:38:232
2400199294,4cyclictest21713-21expr10:33:202
2400199291,7cyclictest0-21swapper/210:13:272
2400199291,5cyclictest7525-21latency_hist10:08:052
24001992910,16cyclictest44822sleep213:23:542
2399699295,4cyclictest5133-21irqrtprio08:53:231
2399699295,3cyclictest30805-21tr09:48:181
2399699291,4cyclictest29646-21snmp_o5powerctl09:43:321
23989992923,3cyclictest9-21ksoftirqd/008:48:140
23989992922,4cyclictest9-21ksoftirqd/012:49:430
24009992823,3cyclictest41-21ksoftirqd/311:43:283
24009992823,3cyclictest41-21ksoftirqd/309:08:233
24009992821,4cyclictest41-21ksoftirqd/309:00:183
2400199288,3cyclictest32557-21if_enp1s008:43:202
2400199284,3cyclictest15241-21gltestperf10:23:222
2400199284,3cyclictest14337-21sed12:58:252
2400199282,6cyclictest7728-21apt-get10:08:172
2400199281,7cyclictest0-21swapper/211:13:392
2400199281,7cyclictest0-21swapper/211:13:392
2400199281,5cyclictest23343-21grep13:08:312
2400199281,5cyclictest23343-21grep13:08:312
2398999286,15cyclictest29551-21ssh12:38:210
23989992822,3cyclictest9-21ksoftirqd/009:16:230
23989992820,5cyclictest9-21ksoftirqd/013:18:390
24009992720,5cyclictest41-21ksoftirqd/309:18:043
23989992722,3cyclictest9-21ksoftirqd/013:37:090
23989992721,3cyclictest9-21ksoftirqd/011:19:170
23989992721,3cyclictest9-21ksoftirqd/011:19:170
23989992721,3cyclictest9-21ksoftirqd/009:08:580
24009992621,3cyclictest41-21ksoftirqd/309:43:243
24009992621,3cyclictest21394-21kworker/3:008:28:153
24009992619,4cyclictest41-21ksoftirqd/309:37:553
23989992620,4cyclictest9-21ksoftirqd/010:15:020
23989992620,3cyclictest9-21ksoftirqd/012:11:020
23989992620,3cyclictest9-21ksoftirqd/011:30:420
23989992620,3cyclictest9-21ksoftirqd/010:02:490
23989992620,3cyclictest9-21ksoftirqd/009:24:270
23989992619,4cyclictest9-21ksoftirqd/009:04:120
23989992619,4cyclictest9-21ksoftirqd/008:31:530
23989992619,4cyclictest31528-21head13:53:420
23989992519,3cyclictest9-21ksoftirqd/012:35:380
23989992519,3cyclictest9-21ksoftirqd/011:03:260
23989992519,3cyclictest101ktimersoftd/013:25:460
23989992518,4cyclictest9-21ksoftirqd/010:04:100
23989992518,4cyclictest9-21ksoftirqd/009:35:280
177391250,9ptp4l401ktimersoftd/308:43:573
177391250,1ptp4l401ktimersoftd/310:45:583
177391250,1ptp4l401ktimersoftd/308:38:273
23989992419,3cyclictest9-21ksoftirqd/012:54:550
23989992418,3cyclictest9-21ksoftirqd/013:32:180
23989992418,3cyclictest9-21ksoftirqd/008:35:530
23989992410,11cyclictest23471-21cat11:53:080
2398999234,10cyclictest1760-21runrttasks10:43:180
23989992319,3cyclictest9-21ksoftirqd/010:50:520
23989992318,3cyclictest9-21ksoftirqd/011:53:340
23989992317,3cyclictest9-21ksoftirqd/013:49:120
23989992317,3cyclictest9-21ksoftirqd/010:23:530
23989992317,3cyclictest9-21ksoftirqd/009:50:510
23989992317,3cyclictest9-21ksoftirqd/008:43:270
23989992316,4cyclictest9-21ksoftirqd/012:04:100
23989992316,4cyclictest19764-21cat13:03:410
23989992316,4cyclictest19764-21cat13:03:410
2398999230,2cyclictest121rcu_preempt11:41:510
2398999224,10cyclictest30776-21ssh11:23:200
23989992216,3cyclictest9-21ksoftirqd/009:47:560
23989992215,4cyclictest1760-21runrttasks13:38:240
23989992214,5cyclictest26054-21grep10:38:200
2398999221,3cyclictest18829-21snmp_o5powerctl12:23:320
2398999221,18cyclictest24075-21/usr/sbin/munin11:13:380
2398999221,18cyclictest24075-21/usr/sbin/munin11:13:380
2398999221,18cyclictest0-21swapper/010:28:210
2506522114,3sleep09-21ksoftirqd/013:10:510
2506522114,3sleep09-21ksoftirqd/013:10:510
23989992116,3cyclictest9-21ksoftirqd/010:34:250
23989992115,4cyclictest9-21ksoftirqd/008:42:000
23989992115,3cyclictest9-21ksoftirqd/010:54:320
2398999211,4cyclictest16283-21ssh11:43:290
2398999211,17cyclictest9761-21snmp_o5powerctl12:13:340
2398999210,3cyclictest10122-21ssh11:37:250
23989992013,4cyclictest9-21ksoftirqd/009:29:500
23989992013,4cyclictest9-21ksoftirqd/009:29:500
2398999201,17cyclictest0-21swapper/012:19:220
2398999201,16cyclictest2814-21snmp_o5powerctl12:43:340
2398999201,16cyclictest16911-21diskmemload12:31:160
2398999191,3cyclictest14129-21df12:58:230
23989991912,4cyclictest18841-21irqrtprio11:08:240
2398999190,17cyclictest0-21swapper/011:01:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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