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2025-07-09 - 09:13
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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 376 highest latencies:
System rackbslot1.osadl.org (updated Tue Jul 08, 2025 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22825072218189,19sleep20-21swapper/207:08:492
22825812204175,18sleep30-21swapper/307:09:463
22825252198180,10sleep00-21swapper/007:09:030
22825842196167,19sleep10-21swapper/107:09:481
2282827998176,3cyclictest2319981-13chrome07:45:010
2282827996865,2cyclictest2378605-21kworker/u8:2+flush-179:008:40:310
2282827996259,2cyclictest2293560-21kworker/u8:0+events_unbound07:30:100
2282831995753,2cyclictest2319874-21munin-update07:45:011
2282827995753,3cyclictest2355657-21kworker/u8:0+flush-179:009:40:340
23470652560,0chrt2347064-21ntp_states08:10:132
2282831995341,11cyclictest2360314-21kworker/u8:3+flush-179:008:45:011
2282827995148,2cyclictest2407793-21kworker/u8:2+flush-179:010:45:080
2282833995046,3cyclictest2543333-21apt-get11:20:122
2282827995046,3cyclictest2423367-21kworker/u8:1+events_unbound09:55:250
2282827995046,3cyclictest2418023-21kworker/u8:3+flush-179:009:20:100
228283399480,47cyclictest0-21swapper/212:20:522
2282831994833,13cyclictest2392791-21/usr/share/muni08:55:021
2282827994844,3cyclictest2360314-21kworker/u8:3+events_unbound08:30:190
2282837994743,3cyclictest2449037-21munin-limits09:45:403
2282831994745,1cyclictest0-21swapper/109:46:381
2282831994742,4cyclictest40657-21ThreadPoolForeg07:20:011
2282827994743,2cyclictest2455137-1kworker/0:2H+kblockd11:13:010
2282827994639,5cyclictest2594678-21/usr/share/muni12:10:050
2282837994539,4cyclictest2417468-21python309:15:323
2282837994530,13cyclictest3975383-1kworker/3:0H+kblockd08:15:013
2282833994532,1cyclictest2536326-21kworker/2:0+pm11:45:212
2282831994543,1cyclictest1253-21openvpn09:40:321
2282831994533,11cyclictest2324768-21kworker/u8:1+flush-179:008:00:051
2282827994541,3cyclictest2407793-21kworker/u8:2+events_unbound09:35:010
2282827994541,3cyclictest2407793-21kworker/u8:2+events_unbound09:35:010
2282833994428,11cyclictest2428454-21kworker/2:1+pm11:10:522
2282827994442,1cyclictest1178549-1kworker/0:0H+kblockd09:25:210
2282827994439,3cyclictest2562119-21kworker/u8:3+flush-179:011:40:260
2282827994439,3cyclictest2552180-21kworker/u8:0+flush-179:012:35:140
2282831994339,3cyclictest2515792-21kworker/u8:1+events_unbound10:55:141
2282827994340,2cyclictest2546693-21kworker/u8:2+events_unbound11:35:040
2282827994338,4cyclictest2546693-21kworker/u8:2+flush-179:011:30:260
2282837994237,4cyclictest2372105-21ntpq08:35:093
2282831994238,3cyclictest2552180-21kworker/u8:0+events_unbound12:35:091
2282831994238,3cyclictest2526065-21kworker/u8:4+flush-179:011:30:101
2282831994236,4cyclictest2475196-21/usr/share/muni10:15:011
2282827994238,3cyclictest2324768-21kworker/u8:1+events_unbound09:00:350
2282837994136,3cyclictest3975383-1kworker/3:0H+kblockd11:09:163
2282833994137,3cyclictest2552180-21kworker/u8:0+flush-179:012:35:442
2282833994127,13cyclictest2023986-1kworker/2:2H+kblockd07:48:252
2282831994138,2cyclictest2546693-21kworker/u8:2+flush-179:011:55:131
2282831994138,2cyclictest2337341-21kworker/u8:4+events_unbound08:05:191
2282831994138,2cyclictest2337341-21kworker/u8:4+events_unbound08:05:191
2282831994137,3cyclictest2562119-21kworker/u8:3+events_unbound11:40:011
2282831994137,3cyclictest2552180-21kworker/u8:0+flush-179:011:45:201
2282831994137,3cyclictest2526065-21kworker/u8:4+events_unbound11:20:301
2282831994136,4cyclictest2619284-31munin-html12:30:331
2282827994137,3cyclictest2360314-21kworker/u8:3+flush-179:009:05:120
2282833994038,1cyclictest2428454-21kworker/2:1+pm10:03:572
2282833994037,2cyclictest2428454-21kworker/2:1+pm11:06:462
2282833994037,2cyclictest2256659-21kworker/2:1+pm07:55:512
2282831994037,2cyclictest2272282-21kworker/1:1+pm08:38:301
2282831994035,4cyclictest2481729-21ntpq10:20:151
2282831994028,11cyclictest2526065-21kworker/u8:4+flush-179:011:08:221
2282831994028,11cyclictest2191474-21kworker/u8:2+events_unbound07:31:551
2282827994036,3cyclictest2324768-21kworker/u8:1+events_unbound08:55:270
2282827994035,4cyclictest2320217-21/usr/share/muni07:45:170
2282827994035,2cyclictest2611293-21kworker/u8:1+flush-179:012:30:080
2282837993936,2cyclictest2287950-21kworker/3:3+pm07:40:103
2282837993934,4cyclictest2443776-21gpgv09:45:003
2282833993937,1cyclictest2536326-21kworker/2:0+pm12:18:452
2282833993937,1cyclictest2536326-21kworker/2:0+pm11:36:132
2282833993937,1cyclictest2428454-21kworker/2:1+pm10:23:572
2282833993937,1cyclictest2428454-21kworker/2:1+pm09:56:312
2282833993937,1cyclictest2392016-21kworker/2:2+pm08:57:112
2282833993937,1cyclictest2256659-21kworker/2:1+pm07:21:382
2282833993937,1cyclictest2256659-21kworker/2:1+pm07:14:072
2282833993936,2cyclictest2536326-21kworker/2:0+pm12:00:192
2282833993936,2cyclictest2536326-21kworker/2:0+pm11:40:052
2282833993936,2cyclictest2428454-21kworker/2:1+pm10:30:002
2282833993936,2cyclictest2256659-21kworker/2:1+pm08:39:112
2282833993936,2cyclictest2256659-21kworker/2:1+pm07:50:192
2282833993936,1cyclictest2256659-21kworker/2:1+pm08:16:132
2282831993937,1cyclictest1260-21snmpd09:35:321
2282831993937,1cyclictest1260-21snmpd09:35:321
2282831993936,3cyclictest2407793-21kworker/u8:2+flush-179:009:10:261
2282831993936,3cyclictest2355657-21kworker/u8:0+flush-179:009:00:051
2282831993936,2cyclictest2360314-21kworker/u8:3+flush-179:009:05:211
2282831993936,2cyclictest2350476-21kworker/u8:2+events_unbound08:30:311
2282831993928,1cyclictest1260-21snmpd11:52:541
2282827993936,2cyclictest2562119-21kworker/u8:3+flush-179:011:50:110
2282827993936,2cyclictest2324768-21kworker/u8:1+flush-179:009:15:210
2282837993836,1cyclictest2433470-21kworker/3:2+pm11:52:513
2282837993836,1cyclictest2433470-21kworker/3:2+pm10:34:063
2282837993836,1cyclictest2340523-21kworker/3:2+pm08:28:253
2282837993836,1cyclictest2314482-21kworker/3:1+pm07:52:213
2282837993832,4cyclictest2552305-21/usr/share/muni11:30:143
2282837993832,2cyclictest40681-13VizCompositorTh11:38:113
228283399384,4cyclictest40681-13VizCompositorTh08:31:082
2282833993836,1cyclictest2428454-21kworker/2:1+pm10:51:252
2282833993836,1cyclictest2428454-21kworker/2:1+pm10:36:402
2282833993836,1cyclictest2428454-21kworker/2:1+pm09:50:182
2282833993836,1cyclictest2405106-21kworker/2:0+pm09:26:112
2282833993836,1cyclictest2405106-21kworker/2:0+pm09:20:292
2282833993836,1cyclictest2405106-21kworker/2:0+pm09:10:292
2282833993836,1cyclictest2256659-21kworker/2:1+pm09:03:062
2282833993836,1cyclictest2256659-21kworker/2:1+pm08:52:362
2282833993835,2cyclictest2536326-21kworker/2:0+pm12:33:522
2282833993835,2cyclictest2536326-21kworker/2:0+pm12:07:422
2282833993835,2cyclictest2428454-21kworker/2:1+pm11:04:262
2282833993835,2cyclictest2428454-21kworker/2:1+pm10:32:162
2282833993835,2cyclictest2407793-21kworker/u8:2+events_unbound10:50:012
2282833993835,2cyclictest2256659-21kworker/2:1+pm08:02:062
228283399380,4cyclictest40654-21chrome09:30:452
2282831993835,2cyclictest2272282-21kworker/1:1+pm10:27:211
2282831993834,3cyclictest2552180-21kworker/u8:0+flush-179:012:05:201
2282831993834,2cyclictest2005609-1kworker/1:2H+kblockd12:00:161
2282827993835,2cyclictest2573076-21kworker/0:1+pm12:03:210
2282827993835,2cyclictest2324768-21kworker/u8:1+flush-179:009:10:150
2282827993835,2cyclictest2293560-21kworker/u8:0+flush-179:007:35:220
2282837993734,2cyclictest3975383-1kworker/3:0H+kblockd12:10:283
2282837993734,2cyclictest3975383-1kworker/3:0H+kblockd10:29:553
2282837993734,2cyclictest3975383-1kworker/3:0H+kblockd10:11:223
2282837993734,2cyclictest3975383-1kworker/3:0H+kblockd10:00:053
2282837993734,2cyclictest2433470-21kworker/3:2+pm10:38:363
2282837993734,2cyclictest2287950-21kworker/3:3+pm07:25:103
2282837993733,3cyclictest3975383-1kworker/3:0H+kblockd11:43:513
2282837993733,2cyclictest3975383-1kworker/3:0H+kblockd07:17:053
2282837993732,4cyclictest2309259-31munin-graph07:31:363
2282833993735,1cyclictest2536326-21kworker/2:0+pm11:15:132
2282833993735,1cyclictest2428454-21kworker/2:1+pm09:44:422
2282833993735,1cyclictest2405106-21kworker/2:0+pm09:16:222
2282833993735,1cyclictest2256659-21kworker/2:1+pm08:28:522
2282833993735,1cyclictest2256659-21kworker/2:1+pm07:35:502
2282833993734,2cyclictest2256659-21kworker/2:1+pm09:08:102
2282833993734,2cyclictest2256659-21kworker/2:1+pm08:43:272
2282833993733,3cyclictest2023986-1kworker/2:2H+kblockd09:36:382
2282833993733,3cyclictest2023986-1kworker/2:2H+kblockd09:36:382
228283399371,4cyclictest2318941-21ntpq07:40:262
2282831993735,1cyclictest2272282-21kworker/1:1+pm08:17:301
2282831993734,2cyclictest2604290-21kworker/u8:4+events_unbound12:25:201
2282831993734,2cyclictest2552180-21kworker/u8:0+events_unbound12:15:261
2282831993734,2cyclictest2355657-21kworker/u8:0+flush-179:009:50:201
2282831993734,2cyclictest2293560-21kworker/u8:0+events_unbound07:35:291
2282831993734,2cyclictest2251592-21kworker/u8:1+flush-179:007:10:111
2282831993734,2cyclictest2005609-1kworker/1:2H+kblockd10:40:311
2282831993734,2cyclictest2005609-1kworker/1:2H+kblockd10:14:481
2282831993731,5cyclictest2456101-21apt-get09:55:141
2282831993726,1cyclictest1260-21snmpd11:02:031
2282827993735,1cyclictest2510639-21kworker/0:0+pm11:07:270
2282827993735,1cyclictest2455137-1kworker/0:2H+kblockd10:54:510
2282827993734,2cyclictest2423367-21kworker/u8:1+events_unbound09:50:370
2282827993734,2cyclictest1178549-1kworker/0:0H+kblockd09:33:060
2282827993734,2cyclictest1178549-1kworker/0:0H+kblockd08:35:490
2282827993734,2cyclictest1178549-1kworker/0:0H+kblockd07:57:360
2282827993733,3cyclictest2552180-21kworker/u8:0+flush-179:011:45:270
2282827993733,3cyclictest2515792-21kworker/u8:1+flush-179:010:55:050
228282799370,35cyclictest40654-21chrome08:21:220
2282837993634,1cyclictest3975383-1kworker/3:0H+kblockd08:43:503
2282837993634,1cyclictest2433470-21kworker/3:2+pm11:58:363
2282837993633,2cyclictest3975383-1kworker/3:0H+kblockd12:27:063
2282837993633,2cyclictest3975383-1kworker/3:0H+kblockd11:20:323
2282837993633,2cyclictest3975383-1kworker/3:0H+kblockd10:15:263
2282837993633,2cyclictest3975383-1kworker/3:0H+kblockd08:46:243
2282837993633,2cyclictest2433470-21kworker/3:2+pm09:59:163
2282837993633,2cyclictest2397805-21kworker/3:1+pm09:29:003
2282833993634,1cyclictest2536326-21kworker/2:0+pm12:25:562
2282833993634,1cyclictest2536326-21kworker/2:0+pm12:10:142
2282833993634,1cyclictest2428454-21kworker/2:1+pm10:55:312
2282833993634,1cyclictest2428454-21kworker/2:1+pm10:16:442
2282833993634,1cyclictest2256659-21kworker/2:1+pm08:45:332
2282833993634,1cyclictest2023986-1kworker/2:2H+kblockd08:23:132
2282833993631,3cyclictest2573599-21/usr/share/muni11:50:142
2282833993629,6cyclictest2536326-21kworker/2:0+pm11:33:222
228283399361,1cyclictest2469211-31munin-html10:05:382
2282831993634,1cyclictest2005609-1kworker/1:2H+kblockd10:51:131
2282831993634,1cyclictest0-21swapper/107:49:161
2282831993633,3cyclictest2418023-21kworker/u8:3+flush-179:009:25:061
2282831993633,2cyclictest2005609-1kworker/1:2H+kblockd08:45:161
2282831993633,2cyclictest2005609-1kworker/1:2H+kblockd08:25:331
2282827993635,1cyclictest2406431-21kworker/0:1+pm10:19:200
2282827993634,1cyclictest2406431-21kworker/0:1+pm10:34:510
2282827993634,1cyclictest1178549-1kworker/0:0H+kblockd07:21:460
2282827993633,2cyclictest2455137-1kworker/0:2H+kblockd11:17:210
2282827993633,2cyclictest1178549-1kworker/0:0H+kblockd08:46:000
2282827993632,2cyclictest2455137-1kworker/0:2H+kblockd12:05:030
2282837993533,1cyclictest3975383-1kworker/3:0H+kblockd11:19:513
2282837993533,1cyclictest3975383-1kworker/3:0H+kblockd09:24:303
2282837993533,1cyclictest3975383-1kworker/3:0H+kblockd08:50:053
2282837993532,2cyclictest3975383-1kworker/3:0H+kblockd12:36:223
2282837993532,2cyclictest3975383-1kworker/3:0H+kblockd09:10:163
2282837993532,2cyclictest3975383-1kworker/3:0H+kblockd07:45:253
2282837993531,3cyclictest2405230-21cat09:05:173
2282837993531,2cyclictest3975383-1kworker/3:0H+kblockd07:10:093
2282833993534,1cyclictest2256659-21kworker/2:1+pm07:30:222
2282833993533,1cyclictest2428454-21kworker/2:1+pm10:11:142
2282833993533,1cyclictest2428454-21kworker/2:1+pm09:45:072
2282833993533,1cyclictest2256659-21kworker/2:1+pm07:16:142
2282833993532,2cyclictest2536326-21kworker/2:0+pm11:56:532
2282833993532,2cyclictest2428454-21kworker/2:1+pm10:40:042
2282833993512,22cyclictest40659-13Chrome_ChildIOT07:25:482
2282831993533,2cyclictest2191474-21kworker/u8:2+events_unbound07:50:101
2282831993533,1cyclictest2005609-1kworker/1:2H+kblockd12:10:151
2282831993533,1cyclictest2005609-1kworker/1:2H+kblockd10:30:041
2282831993532,2cyclictest2005609-1kworker/1:2H+kblockd09:33:461
2282831993532,2cyclictest2005609-1kworker/1:2H+kblockd07:55:041
2282831993531,3cyclictest2526065-21kworker/u8:4+events_unbound11:28:351
2282827993533,1cyclictest2455137-1kworker/0:2H+kblockd11:25:520
2282827993532,2cyclictest2455137-1kworker/0:2H+kblockd10:25:260
2282827993532,2cyclictest2455137-1kworker/0:2H+kblockd10:23:510
2282827993532,2cyclictest2406431-21kworker/0:1+pm10:14:050
2282827993532,2cyclictest2293560-21kworker/u8:0+events_unbound07:50:300
2282827993532,2cyclictest1178549-1kworker/0:0H+kblockd08:50:010
2282827993532,2cyclictest1178549-1kworker/0:0H+kblockd08:18:560
2282827993532,2cyclictest1178549-1kworker/0:0H+kblockd07:28:010
2282827993529,4cyclictest2495671-21/usr/share/muni10:35:100
228282799350,33cyclictest40654-21chrome10:45:010
2282837993433,1cyclictest3975383-1kworker/3:0H+kblockd09:51:113
2282837993432,1cyclictest3975383-1kworker/3:0H+kblockd09:03:283
2282837993432,1cyclictest2433470-21kworker/3:2+pm11:03:063
2282837993431,2cyclictest3975383-1kworker/3:0H+kblockd12:32:133
2282837993431,2cyclictest3975383-1kworker/3:0H+kblockd10:52:513
2282837993430,3cyclictest2342426-21munin-node08:05:163
2282837993430,3cyclictest2342426-21munin-node08:05:153
2282833993432,1cyclictest2536326-21kworker/2:0+pm11:27:212
2282833993430,2cyclictest40654-21chrome08:07:422
2282833993430,2cyclictest40654-21chrome08:07:422
2282831993433,1cyclictest2005609-1kworker/1:2H+kblockd11:18:201
2282831993433,1cyclictest2005609-1kworker/1:2H+kblockd08:50:171
2282831993432,1cyclictest2005609-1kworker/1:2H+kblockd08:24:591
2282831993431,3cyclictest2463982-21kworker/u8:4+flush-179:010:05:051
2282831993423,10cyclictest2599255-21kworker/u8:2+flush-179:012:20:171
228283199341,32cyclictest0-21swapper/109:15:041
228283199340,33cyclictest1253-21openvpn10:01:511
2282827993433,1cyclictest2455137-1kworker/0:2H+kblockd12:16:150
2282827993432,1cyclictest2573076-21kworker/0:1+pm12:29:060
2282827993432,1cyclictest2455137-1kworker/0:2H+kblockd11:21:180
2282827993432,1cyclictest2455137-1kworker/0:2H+kblockd10:02:100
2282827993431,2cyclictest2455137-1kworker/0:2H+kblockd10:05:060
2282827993431,2cyclictest1178549-1kworker/0:0H+kblockd08:05:330
2282827993431,2cyclictest1178549-1kworker/0:0H+kblockd08:05:330
2282837993330,2cyclictest40612-21ThreadPoolForeg12:19:563
2282837993330,2cyclictest3975383-1kworker/3:0H+kblockd12:21:263
2282837993330,2cyclictest3975383-1kworker/3:0H+kblockd10:48:093
2282837993330,2cyclictest3975383-1kworker/3:0H+kblockd08:04:463
2282837993329,2cyclictest3975383-1kworker/3:0H+kblockd07:57:113
2282831993330,2cyclictest2490054-21kworker/u8:1+flush-179:010:35:231
2282831993330,2cyclictest2191474-21kworker/u8:2+flush-179:007:25:151
2282831993330,2cyclictest2005609-1kworker/1:2H+kblockd10:45:161
2282831993330,2cyclictest2005609-1kworker/1:2H+kblockd07:20:101
2282827993331,1cyclictest1178549-1kworker/0:0H+kblockd08:28:060
2282827993331,1cyclictest1178549-1kworker/0:0H+kblockd08:11:020
2282827993329,3cyclictest2337341-21kworker/u8:4+events_unbound08:03:380
2282827993329,3cyclictest2251592-21kworker/u8:1+flush-179:007:10:120
2282837993228,3cyclictest2355657-21kworker/u8:0+flush-179:010:57:023
2282831993230,2cyclictest2324768-21kworker/u8:1+flush-179:008:10:271
2282831993230,1cyclictest2005609-1kworker/1:2H+kblockd11:14:511
2282831993210,21cyclictest0-21swapper/111:43:211
2282827993230,1cyclictest1178549-1kworker/0:0H+kblockd07:16:140
2282827993229,2cyclictest2455137-1kworker/0:2H+kblockd12:24:310
2282837993129,1cyclictest1260-21snmpd12:01:423
2282837993129,1cyclictest1260-21snmpd08:33:483
2282837993128,2cyclictest3975383-1kworker/3:0H+kblockd11:14:413
2282837993128,2cyclictest3975383-1kworker/3:0H+kblockd07:21:183
2282837993028,1cyclictest1260-21snmpd11:45:483
2282837993028,1cyclictest1260-21snmpd09:37:203
2282837993028,1cyclictest1260-21snmpd09:37:203
2282837993028,1cyclictest1260-21snmpd08:11:453
2282837993028,1cyclictest107350-21ntpd08:20:403
2282837993027,2cyclictest3975383-1kworker/3:0H+kblockd11:25:163
2282837993027,2cyclictest3975383-1kworker/3:0H+kblockd08:55:553
2282831993029,1cyclictest1260-21snmpd09:20:471
2282827993026,3cyclictest2407793-21kworker/u8:2+flush-179:009:45:170
2282837992926,2cyclictest3975383-1kworker/3:0H+kblockd09:30:263
2282837992923,5cyclictest3975383-1kworker/3:0H+kblockd07:35:043
2282827992927,1cyclictest2455137-1kworker/0:2H+kblockd11:55:160
2282837992828,0cyclictest1260-21snmpd10:22:063
2282837992825,2cyclictest2355657-21kworker/u8:0+flush-179:010:40:153
2282827992825,2cyclictest2455137-1kworker/0:2H+kblockd11:02:510
2282837992726,1cyclictest1260-21snmpd12:05:423
2282837992725,1cyclictest3975383-1kworker/3:0H+kblockd10:06:283
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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