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2025-11-26 - 16:28
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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 rackbslot1.osadl.org (updated Wed Nov 26, 2025 12:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23389612214177,27sleep20-21swapper/207:09:552
23389612214177,27sleep20-21swapper/207:09:552
23388432206183,13sleep00-21swapper/007:08:280
23388432206183,13sleep00-21swapper/007:08:280
23388172190166,14sleep10-21swapper/107:08:091
23388172190166,14sleep10-21swapper/107:08:081
23388192189164,14sleep30-21swapper/307:08:113
23388192189164,14sleep30-21swapper/307:08:113
25411042940,1sleep30-21swapper/310:22:053
25411042940,1sleep30-21swapper/310:22:053
233922499941,56cyclictest2437712-21ThreadPoolForeg08:45:033
2339218998479,3cyclictest3125721-21chrome10:45:020
2339220996558,5cyclictest2437748-21chrome08:45:032
2339220996360,2cyclictest2348695-21kworker/u8:3+flush-179:007:50:152
2339220996358,4cyclictest2458360-21kworker/u8:0+events_unbound09:20:012
2339220996257,3cyclictest2468319-21kworker/u8:2+flush-179:009:25:142
2339224996156,4cyclictest2630750-21kworker/u8:0+events_unbound12:10:203
2339224996053,5cyclictest2448188-21/usr/share/muni08:55:043
2339220996056,3cyclictest2348695-21kworker/u8:3+flush-179:007:25:142
2339220995955,3cyclictest2598764-21kworker/u8:3+flush-179:011:30:262
2339220995953,4cyclictest2360759-21/usr/share/muni07:30:092
24242812580,1sleep30-21swapper/308:30:193
2339220995754,2cyclictest2401221-21kworker/u8:3+flush-179:008:35:102
2339219995750,6cyclictest2661316-21kworker/u8:0+flush-179:012:25:191
2339224995652,3cyclictest2504730-21kworker/u8:3+flush-179:009:49:583
2339224995650,4cyclictest2531298-21/usr/share/muni10:15:133
2339220995652,3cyclictest2598764-21kworker/u8:3+flush-179:012:00:122
2339220995652,3cyclictest2520070-21kworker/u8:2+flush-179:010:25:012
2339220995652,3cyclictest2520070-21kworker/u8:2+flush-179:010:25:012
2339219995646,8cyclictest2526087-21/usr/share/muni10:10:011
2339224995551,3cyclictest2341543-21kworker/u8:1+flush-179:007:30:013
2339220995551,3cyclictest2630750-21kworker/u8:0+flush-179:011:55:302
2339220995551,3cyclictest2530127-21kworker/u8:3+flush-179:010:25:112
2339219995547,6cyclictest3125724-21ThreadPoolForeg11:15:001
2339224995450,3cyclictest2625005-21journal-offline11:45:003
2339224995448,4cyclictest2588337-21munin-update11:10:333
2339220995451,2cyclictest2546333-21kworker/u8:4+flush-179:010:40:212
2339220995448,4cyclictest2511876-21kworker/u8:0+flush-179:010:55:102
2339224995349,3cyclictest2511876-21kworker/u8:0+events_unbound10:50:103
2339224995349,3cyclictest2432013-21kworker/u8:1+flush-179:009:00:253
2339224995348,4cyclictest2546333-21kworker/u8:4+flush-179:011:00:203
2339220995350,2cyclictest2672040-21kworker/u8:1+flush-179:012:30:212
2339220995349,3cyclictest2535752-21kworker/u8:1+flush-179:011:15:272
2339224995249,2cyclictest2401221-21kworker/u8:3+flush-179:009:10:003
2339220995248,3cyclictest2511876-21kworker/u8:0+flush-179:010:45:342
2339220995247,4cyclictest2588149-21kworker/u8:2+flush-179:012:15:142
2339219995241,8cyclictest3125725-21ThreadPoolForeg07:14:251
2339224995149,2cyclictest2630750-21kworker/u8:0+flush-179:011:58:263
2339224995147,3cyclictest2598764-21kworker/u8:3+events_unbound11:25:003
2339220995147,3cyclictest2327918-21kworker/u8:0+flush-179:007:10:132
2339220995146,4cyclictest2630750-21kworker/u8:0+flush-179:012:05:102
2339220995146,4cyclictest2376150-21CompositorTileW07:45:012
2339220995145,3cyclictest2432013-21kworker/u8:1+flush-179:009:40:322
2339219995143,5cyclictest2442990-21/usr/share/muni08:50:141
24739272500,1chrt2473928-21gettkip09:17:001
2339224995046,3cyclictest2401221-21kworker/u8:3+flush-179:008:15:223
2339220995046,3cyclictest2458360-21kworker/u8:0+flush-179:009:10:202
2339220995044,5cyclictest2598764-21kworker/u8:3+flush-179:011:35:222
2339224994946,2cyclictest2630750-21kworker/u8:0+flush-179:012:05:003
2339224994945,3cyclictest2520070-21kworker/u8:2+events_unbound10:13:063
2339224994945,3cyclictest2511876-21kworker/u8:0+flush-179:011:05:213
2339220994945,3cyclictest2341543-21kworker/u8:1+flush-179:007:35:282
2339219994943,5cyclictest247560-21ThreadPoolForeg11:52:241
2339224994845,2cyclictest2598764-21kworker/u8:3+flush-179:011:35:173
2339224994845,2cyclictest2561439-21kworker/u8:5+flush-179:011:25:233
2339224994844,3cyclictest2327918-21kworker/u8:0+flush-179:007:45:173
2339224994843,3cyclictest2561439-21kworker/u8:5+flush-179:011:30:133
2339224994838,9cyclictest2432013-21kworker/u8:1+flush-179:009:20:333
2339220994844,3cyclictest2598764-21kworker/u8:3+flush-179:011:40:162
2339220994844,3cyclictest2511876-21kworker/u8:0+flush-179:010:00:312
2339220994844,3cyclictest2511876-21kworker/u8:0+flush-179:010:00:312
2339220994844,3cyclictest2380867-21kworker/u8:2+flush-179:008:05:302
2339220994843,4cyclictest2341543-21kworker/u8:1+flush-179:008:15:062
2339219994841,5cyclictest2494930-21/usr/share/muni09:40:161
2339218994844,3cyclictest2380867-21kworker/u8:2+flush-179:008:01:040
2339224994745,2cyclictest2401221-21kworker/u8:3+flush-179:008:35:183
2339224994744,2cyclictest2546333-21kworker/u8:4+events_unbound10:55:303
2339224994744,2cyclictest2348695-21kworker/u8:3+flush-179:007:55:083
2339224994743,3cyclictest2511876-21kworker/u8:0+flush-179:010:05:073
2339224994743,3cyclictest2341543-21kworker/u8:1+flush-179:007:35:343
2339220994744,2cyclictest2546333-21kworker/u8:4+flush-179:011:00:222
2339220994744,2cyclictest2380867-21kworker/u8:2+flush-179:008:50:182
2339220994743,3cyclictest2511876-21kworker/u8:0+events_unbound10:15:292
2339220994743,3cyclictest2401221-21kworker/u8:3+flush-179:009:05:172
2339219994742,4cyclictest2535521-31munin-html10:15:371
2339219994731,5cyclictest2546705-21/usr/share/muni10:30:021
2339218994742,4cyclictest2656844-21/usr/share/muni12:15:160
2339224994642,3cyclictest2432013-21kworker/u8:1+flush-179:010:00:273
2339224994642,3cyclictest2432013-21kworker/u8:1+flush-179:010:00:273
2339224994641,3cyclictest2327918-21kworker/u8:0+flush-179:007:40:083
2339224994633,12cyclictest2447471-1kworker/3:2H+kblockd09:31:103
2339220994643,2cyclictest2504730-21kworker/u8:3+flush-179:009:48:212
2339220994643,2cyclictest2423892-21kworker/u8:0+events_unbound08:55:152
2339220994642,3cyclictest2588149-21kworker/u8:2+flush-179:011:25:142
2339220994642,3cyclictest2520070-21kworker/u8:2+flush-179:010:05:112
2339220994641,4cyclictest2588149-21kworker/u8:2+events_unbound11:10:272
2339219994641,4cyclictest2380867-21kworker/u8:2+flush-179:008:39:591
2339224994542,2cyclictest2380867-21kworker/u8:2+flush-179:007:50:233
2339224994541,3cyclictest2635849-21kworker/u8:1+events_unbound12:05:113
2339224994541,3cyclictest2561439-21kworker/u8:5+flush-179:010:45:343
2339224994541,3cyclictest2355401-21latency_hist07:25:013
2339220994541,3cyclictest2661316-21kworker/u8:0+flush-179:012:35:062
2339220994541,3cyclictest2598764-21kworker/u8:3+events_unbound12:10:292
2339220994541,3cyclictest2468319-21kworker/u8:2+flush-179:009:36:442
2339220994541,3cyclictest2432013-21kworker/u8:1+flush-179:009:20:182
2339220994541,3cyclictest2401221-21kworker/u8:3+flush-179:008:25:082
2339219994537,6cyclictest2582878-31munin-graph11:01:371
2339218994541,3cyclictest2511876-21kworker/u8:0+flush-179:010:35:150
2339218994540,4cyclictest247560-21ThreadPoolForeg11:05:290
2339224994441,2cyclictest2598764-21kworker/u8:3+flush-179:011:45:233
2339224994441,2cyclictest2411525-21kworker/u8:4+events_unbound08:25:313
2339220994441,2cyclictest2380867-21kworker/u8:2+flush-179:008:00:322
2339220994439,4cyclictest2598764-21kworker/u8:3+flush-179:011:45:302
2339220994429,14cyclictest2348695-21kworker/u8:3+events_unbound07:58:202
2339220994422,21cyclictest2561439-21kworker/u8:5+flush-179:010:50:022
2339219994440,3cyclictest2546333-21kworker/u8:4+flush-179:010:55:551
2339219994440,2cyclictest2525765-21base6410:10:001
2339219994439,4cyclictest2535752-21kworker/u8:1+flush-179:011:05:101
2339218994442,2cyclictest2327918-21kworker/u8:0+events_unbound07:31:070
2339218994439,4cyclictest2527424-21apt-get10:10:130
2339218994439,4cyclictest247561-21ThreadPoolForeg09:35:130
26412822430,2sleep12641257-21snmp_wlanpowerc12:00:051
2339224994340,2cyclictest2535752-21kworker/u8:1+events_unbound10:25:373
2339224994340,2cyclictest2489167-21kworker/u8:4+flush-179:009:50:183
2339224994339,3cyclictest2561439-21kworker/u8:5+events_unbound10:43:553
2339224994339,3cyclictest2458360-21kworker/u8:0+flush-179:009:10:173
2339220994340,2cyclictest2520070-21kworker/u8:2+events_unbound10:13:002
2339220994339,3cyclictest2588149-21kworker/u8:2+flush-179:012:20:152
2339220994339,3cyclictest2546333-21kworker/u8:4+events_unbound10:30:182
2339220994339,3cyclictest2535752-21kworker/u8:1+events_unbound11:05:152
2339220994339,3cyclictest2489167-21kworker/u8:4+flush-179:009:51:462
2339219994334,7cyclictest2557202-21/usr/share/muni10:40:041
2339218994341,2cyclictest2598764-21kworker/u8:3+events_unbound11:37:460
2339218994341,2cyclictest2432013-21kworker/u8:1+events_unbound09:06:200
2339218994340,2cyclictest2341543-21kworker/u8:1+flush-179:008:10:330
2339218994339,3cyclictest2341543-21kworker/u8:1+events_unbound08:06:220
2339224994239,2cyclictest2546333-21kworker/u8:4+flush-179:010:30:133
2339224994239,2cyclictest2535752-21kworker/u8:1+flush-179:011:15:233
2339224994239,2cyclictest2479314-21kworker/u8:3+events_unbound09:27:023
2339224994239,2cyclictest2341543-21kworker/u8:1+events_unbound08:10:303
2339220994237,2cyclictest2479314-21kworker/u8:3+flush-179:009:30:272
2339220994236,3cyclictest2432013-21kworker/u8:1+flush-179:008:40:172
2339219994238,3cyclictest2500071-13Chrome_IOThread09:45:011
2339219994236,4cyclictest2432013-21kworker/u8:1+flush-179:009:35:261
2339218994236,4cyclictest2474260-21munin-update09:20:350
2339224994138,2cyclictest2666661-21kworker/u8:4+flush-179:012:35:173
2339224994138,2cyclictest2598764-21kworker/u8:3+events_unbound12:16:213
2339224994138,2cyclictest2341543-21kworker/u8:1+flush-179:008:05:233
2339224994137,3cyclictest2661316-21kworker/u8:0+flush-179:012:20:263
2339220994138,2cyclictest2401221-21kworker/u8:3+events_unbound09:02:532
2339220994137,3cyclictest2666661-21kworker/u8:4+flush-179:012:30:002
2339220994137,3cyclictest2401221-21kworker/u8:3+flush-179:008:20:162
2339220994137,3cyclictest2341543-21kworker/u8:1+flush-179:008:10:542
2339220994136,3cyclictest2348695-21kworker/u8:3+events_unbound07:24:572
2339220994135,3cyclictest2380867-21kworker/u8:2+flush-179:008:32:272
2339219994137,3cyclictest2401221-21kworker/u8:3+flush-179:009:05:181
2339219994133,6cyclictest247516-21Chrome_ChildIOT08:56:091
2339219994114,24cyclictest2626603-21ThreadPoolForeg11:45:161
2339218994137,3cyclictest2401221-21kworker/u8:3+events_unbound08:23:170
2339218994136,4cyclictest3125726-13Chrome_ChildIOT12:20:230
2339218994136,4cyclictest247515-21ThreadPoolForeg11:41:180
2339218994125,15cyclictest2376138-21ThreadPoolForeg07:45:010
2339224994036,3cyclictest2468319-21kworker/u8:2+flush-179:009:15:223
2339224994036,3cyclictest2411525-21kworker/u8:4+events_unbound08:20:213
2339220994037,3cyclictest2341543-21kworker/u8:1+flush-179:007:40:052
2339220994036,3cyclictest2432013-21kworker/u8:1+flush-179:009:57:402
2339219994034,4cyclictest1873695-1kworker/1:0H+kblockd08:23:311
2339219994033,5cyclictest2463814-21/usr/share/muni09:10:031
2339218994038,2cyclictest2489167-21kworker/u8:4+events_unbound09:58:230
2339218994036,3cyclictest2598764-21kworker/u8:3+flush-179:012:29:180
2339218994035,4cyclictest2551614-21/usr/share/muni10:35:040
2339224993936,2cyclictest2535752-21kworker/u8:1+flush-179:010:39:313
2339224993936,2cyclictest2327918-21kworker/u8:0+flush-179:007:15:083
2339224993934,4cyclictest2666661-21kworker/u8:4+events_unbound12:27:003
2339220993937,1cyclictest2525484-21kworker/2:0+pm11:50:352
2339220993932,5cyclictest3125724-21ThreadPoolForeg07:15:152
2339219993936,2cyclictest2370832-21kworker/1:2+pm09:22:331
2339219993934,3cyclictest2339118-21kworker/1:0+pm07:34:081
2339219993933,4cyclictest1873695-1kworker/1:0H+kblockd07:54:201
2339218993937,1cyclictest1260-21snmpd09:01:440
2339218993935,3cyclictest2432013-21kworker/u8:1+flush-179:008:56:580
2339218993933,4cyclictest2572846-21/usr/share/muni10:55:020
25625622380,1chrt2562519-13chrome10:45:021
23910612380,1sleep10-21swapper/107:56:041
2339224993835,2cyclictest2489167-21kworker/u8:4+flush-179:009:38:063
2339224993835,2cyclictest2380867-21kworker/u8:2+flush-179:008:00:533
2339224993834,3cyclictest2598764-21kworker/u8:3+events_unbound11:50:103
2339224993834,3cyclictest2327918-21kworker/u8:0+flush-179:007:13:053
2339220993834,3cyclictest2598764-21kworker/u8:3+flush-179:011:20:052
233922099380,36cyclictest3125721-21chrome10:35:372
2339219993835,3cyclictest2661316-21kworker/u8:0+flush-179:012:20:341
2339219993835,2cyclictest1873695-1kworker/1:0H+kblockd09:55:001
2339219993835,2cyclictest1873695-1kworker/1:0H+kblockd07:44:461
2339219993835,2cyclictest1873695-1kworker/1:0H+kblockd07:36:001
2339219993834,3cyclictest1873695-1kworker/1:0H+kblockd12:12:261
2339219993834,3cyclictest1873695-1kworker/1:0H+kblockd11:44:541
2339219993834,3cyclictest1873695-1kworker/1:0H+kblockd11:33:291
2339219993834,3cyclictest1873695-1kworker/1:0H+kblockd09:55:111
2339219993834,3cyclictest1873695-1kworker/1:0H+kblockd08:44:361
2339219993834,2cyclictest1873695-1kworker/1:0H+kblockd12:08:231
2339219993834,2cyclictest1873695-1kworker/1:0H+kblockd10:52:531
2339219993833,3cyclictest1873695-1kworker/1:0H+kblockd12:39:511
2339219993833,3cyclictest1873695-1kworker/1:0H+kblockd08:14:451
2339219993833,3cyclictest1873695-1kworker/1:0H+kblockd07:45:051
2339219993832,4cyclictest2594085-21/usr/share/muni11:15:041
2339219993831,5cyclictest2344528-21/usr/share/muni07:15:171
2339218993836,1cyclictest2412178-21kworker/0:1+pm09:53:490
2339218993835,3cyclictest2423892-21kworker/u8:0+events_unbound08:42:310
2339218993835,2cyclictest2327918-21kworker/u8:0+events_unbound07:14:490
2339218993834,3cyclictest2625336-21ThreadPoolForeg11:45:040
2339218993834,3cyclictest2588337-21munin-update11:10:050
2339224993734,2cyclictest2447471-1kworker/3:2H+kblockd09:43:363
2339224993734,2cyclictest2401221-21kworker/u8:3+flush-179:008:54:303
2339224993732,4cyclictest2432013-21kworker/u8:1+events_unbound08:44:033
2339224993722,14cyclictest3125599-21python309:56:563
2339219993734,2cyclictest1873695-1kworker/1:0H+kblockd09:32:131
2339219993734,2cyclictest1873695-1kworker/1:0H+kblockd08:28:211
2339219993734,2cyclictest1873695-1kworker/1:0H+kblockd08:08:501
2339219993733,3cyclictest2661316-21kworker/u8:0+flush-179:012:30:231
2339219993733,2cyclictest1873695-1kworker/1:0H+kblockd11:38:091
2339219993731,4cyclictest2599017-21munin-update11:20:341
2339219993730,5cyclictest2640095-31munin-html11:55:501
2339218993735,2cyclictest2348695-21kworker/u8:3+events_unbound07:57:570
2339218993735,2cyclictest2348695-21kworker/u8:3+events_unbound07:28:180
2339218993734,2cyclictest2385957-1kworker/0:1H+kblockd12:33:010
2339218993734,2cyclictest2385957-1kworker/0:1H+kblockd09:28:300
2339218993734,2cyclictest2385957-1kworker/0:1H+kblockd08:31:140
2339218993734,2cyclictest2380867-21kworker/u8:2+events_unbound08:37:010
2339218993733,3cyclictest1260-21snmpd10:05:460
2339218993733,2cyclictest2385957-1kworker/0:1H+kblockd09:15:320
2339218993731,5cyclictest3125725-21ThreadPoolForeg11:21:410
2339218993731,5cyclictest3125688-21Chrome_ChildIOT09:10:110
233921899370,36cyclictest247560-21ThreadPoolForeg10:15:300
233921899370,33cyclictest3125721-21chrome07:38:230
2339224993634,1cyclictest2323917-1kworker/3:1H+kblockd07:31:123
2339219993634,1cyclictest1873695-1kworker/1:0H+kblockd08:02:271
2339219993633,2cyclictest1873695-1kworker/1:0H+kblockd10:26:451
2339219993632,3cyclictest3125629-21e21169fc69a4c6709:29:051
2339219993631,3cyclictest1873695-1kworker/1:0H+kblockd07:20:191
2339219993630,4cyclictest2427190-21latency_hist08:35:011
2339218993634,1cyclictest2385957-1kworker/0:1H+kblockd09:30:040
2339218993634,1cyclictest2385957-1kworker/0:1H+kblockd08:48:350
2339218993632,3cyclictest2666661-21kworker/u8:4+flush-179:012:35:190
2339218993632,2cyclictest2270048-1kworker/0:0H+kblockd07:21:380
2339218993631,4cyclictest3125627-21ChromeDriver00:55:190
2339218993631,2cyclictest2500151-21apache_processe09:45:020
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