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2025-12-05 - 20:43
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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 792 highest latencies:
System rackbslot1.osadl.org (updated Fri Dec 05, 2025 12:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30850322208184,14sleep10-21swapper/107:07:461
30850852197168,19sleep30-21swapper/307:08:303
30850482196172,14sleep20-21swapper/207:08:002
30851592181158,13sleep00-21swapper/007:09:220
3085406998276,4cyclictest3125721-21chrome08:45:013
3085400997962,14cyclictest3113700-21snmp_wanswitch.07:45:021
3085400997962,14cyclictest3113700-21snmp_wanswitch.07:45:021
3085402996762,3cyclictest3211445-21chrome09:45:012
3085406996259,2cyclictest3309217-21kworker/u8:4+flush-179:012:05:243
3085402996246,13cyclictest3113699-21snmp_ryswitch2.07:45:022
3085402996246,13cyclictest3113699-21snmp_ryswitch2.07:45:012
308539999610,1cyclictest0-21swapper/011:45:020
3085406995955,3cyclictest3169956-21kworker/u8:4+events_unbound09:10:233
3085406995855,2cyclictest3345424-21kworker/u8:2+flush-179:011:55:293
3085406995837,19cyclictest3113204-21kworker/u8:0+events_unbound08:40:153
3085406995653,2cyclictest3330359-21kworker/u8:0+flush-179:011:40:263
3085406995653,2cyclictest3082139-21kworker/u8:3+events_unbound07:55:343
3085406995649,6cyclictest3334896-21kworker/u8:1+events_unbound11:45:383
3085399995650,4cyclictest247563-13Compositor09:45:020
3085406995553,2cyclictest3205797-21kworker/u8:0+events_unbound10:05:383
3085406995552,2cyclictest3169956-21kworker/u8:4+flush-179:009:20:193
3085406995451,2cyclictest3353011-21kworker/u8:0+events_unbound12:20:043
3085406995350,2cyclictest3288754-21kworker/u8:1+flush-179:011:04:263
3085406995350,2cyclictest3048860-21kworker/u8:4+events_unbound07:25:253
3085406995349,3cyclictest3353011-21kworker/u8:0+flush-179:012:34:273
3085399995349,3cyclictest3330359-21kworker/u8:0+flush-179:011:45:010
3085406995249,2cyclictest3288754-21kworker/u8:1+flush-179:011:05:313
3085406995249,2cyclictest3241866-21kworker/u8:2+flush-179:011:25:333
3085406995244,6cyclictest3108232-21latency_hist07:40:013
3085406995237,3cyclictest3226396-21kworker/u8:1+flush-179:010:38:393
3085406995149,2cyclictest3386539-21kworker/u8:1+flush-179:012:35:343
3085406995147,3cyclictest3082139-21kworker/u8:3+flush-179:007:10:133
3085402995147,3cyclictest3085551-21/usr/share/muni07:10:092
3085402995135,15cyclictest3244213-21kworker/u8:3+flush-179:010:19:592
3085400995140,9cyclictest3180426-21latency_hist09:15:011
3085399995146,3cyclictest3226396-21kworker/u8:1+events_unbound10:40:010
3085406995047,2cyclictest3169956-21kworker/u8:4+events_unbound09:55:293
3085402995047,2cyclictest3048860-21kworker/u8:4+flush-179:007:40:142
3085406994946,3cyclictest3169956-21kworker/u8:4+flush-179:010:15:243
3085406994935,13cyclictest3267719-21kworker/u8:3+flush-179:011:10:153
3085399994932,4cyclictest3113664-21chrome07:45:020
3085399994932,4cyclictest3113664-21chrome07:45:010
3085406994845,2cyclictest3334896-21kworker/u8:1+events_unbound11:50:293
3085406994844,3cyclictest3309217-21kworker/u8:4+events_unbound12:15:283
3085406994844,3cyclictest3205797-21kworker/u8:0+flush-179:010:25:303
3085402994844,3cyclictest247515-21ThreadPoolForeg10:50:192
3085400994845,2cyclictest247563-13Compositor08:50:091
3085400994845,2cyclictest247563-13Compositor08:50:091
3085400994843,4cyclictest3387309-21/usr/share/muni12:35:021
3085399994843,3cyclictest3330359-21kworker/u8:0+flush-179:011:50:100
3085399994842,4cyclictest247560-21ThreadPoolForeg12:25:160
3085406994744,2cyclictest3241866-21kworker/u8:2+events_unbound10:55:303
3085406994743,3cyclictest3048860-21kworker/u8:4+events_unbound08:04:543
3085406994742,4cyclictest3205797-21kworker/u8:0+events_unbound09:45:143
3085406994742,4cyclictest3162738-21kworker/u8:1+flush-179:009:25:333
3085406994740,6cyclictest3197980-21kworker/u8:3+flush-179:009:35:063
3085400994744,2cyclictest3023356-1kworker/1:0H+kblockd10:35:371
3085400994743,3cyclictest3345424-21kworker/u8:2+flush-179:012:00:101
32102112460,1chrt3210204-21ntpq09:40:290
3085406994643,2cyclictest3205797-21kworker/u8:0+events_unbound10:40:253
3085406994643,2cyclictest0-21swapper/312:00:343
3085406994640,4cyclictest3205797-21kworker/u8:0+flush-179:010:22:133
3085406994639,3cyclictest3130799-21kworker/u8:1+events_unbound08:10:263
3085400994641,4cyclictest3226396-21kworker/u8:1+flush-179:010:10:071
3085399994641,4cyclictest247560-21ThreadPoolForeg11:05:540
3085399994640,4cyclictest3097362-21/usr/share/muni07:25:110
3085406994541,3cyclictest3371218-21kworker/u8:3+flush-179:012:26:053
3085406994541,3cyclictest3226396-21kworker/u8:1+events_unbound10:50:033
3085402994541,3cyclictest3293786-31munin-graph11:01:282
3085402994541,3cyclictest3241866-21kworker/u8:2+flush-179:010:45:292
3085402994541,3cyclictest3241866-21kworker/u8:2+flush-179:010:45:292
3085402994541,3cyclictest3162738-21kworker/u8:1+flush-179:009:15:242
3085402994540,3cyclictest2672295-21apache207:55:152
3085399994540,4cyclictest3237103-21/usr/share/muni10:10:090
3085399994540,3cyclictest3169956-21kworker/u8:4+flush-179:010:05:160
3085406994441,2cyclictest3169956-21kworker/u8:4+events_unbound10:00:253
3085406994440,3cyclictest3205797-21kworker/u8:0+flush-179:010:30:233
3085406994440,3cyclictest3062951-1kworker/3:0H+kblockd07:51:343
3085406994439,4cyclictest3288754-21kworker/u8:1+events_unbound11:15:563
3085402994440,3cyclictest3334896-21kworker/u8:1+flush-179:011:45:222
3085402994440,3cyclictest3197980-21kworker/u8:3+flush-179:009:39:092
3085400994432,11cyclictest3241866-21kworker/u8:2+flush-179:010:45:371
3085400994432,11cyclictest3241866-21kworker/u8:2+flush-179:010:45:361
3085400994432,11cyclictest3196080-21snmp_ryswitch.c09:30:021
3085400994431,12cyclictest3023356-1kworker/1:0H+kblockd12:28:201
3085399994440,3cyclictest3241866-21kworker/u8:2+flush-179:011:30:130
3085406994340,2cyclictest3162738-21kworker/u8:1+flush-179:009:15:273
3085406994339,3cyclictest3048860-21kworker/u8:4+flush-179:007:21:103
3085406994336,5cyclictest247561-21ThreadPoolForeg09:01:143
3085402994331,1cyclictest3193449-21kworker/2:2+pm09:53:592
3085400994339,3cyclictest3131108-21/usr/share/muni08:10:101
3085400994329,2cyclictest1260-21snmpd09:17:311
3085399994337,4cyclictest3113204-21kworker/u8:0+flush-179:008:15:100
3085399994330,1cyclictest105470-21isc-net-000008:05:350
3085406994239,2cyclictest3082139-21kworker/u8:3+events_unbound08:24:503
3085406994238,3cyclictest3309217-21kworker/u8:4+flush-179:012:10:283
3085406994238,2cyclictest3197980-21kworker/u8:3+flush-179:009:50:293
3085406994236,4cyclictest3139353-21latency_hist08:20:023
3085406994236,4cyclictest3113661-21CacheThread_Blo07:45:013
3085406994236,4cyclictest3113661-21CacheThread_Blo07:45:013
3085406994236,4cyclictest3082139-21kworker/u8:3+flush-179:007:32:183
3085402994238,3cyclictest3158196-21kworker/u8:2+flush-179:009:40:002
3085402994235,5cyclictest3125727-21ThreadPoolForeg11:41:502
3085400994238,3cyclictest3143765-21ntpq08:25:131
3085400994233,8cyclictest3330359-21kworker/u8:0+flush-179:011:50:191
3085406994138,2cyclictest3158196-21kworker/u8:2+flush-179:008:55:133
3085406994137,3cyclictest3113204-21kworker/u8:0+flush-179:009:06:253
3085406994136,4cyclictest3309217-21kworker/u8:4+flush-179:011:36:043
3085402994129,11cyclictest1260-21snmpd07:30:462
3085400994136,4cyclictest3201150-21/usr/share/muni09:35:241
3085400994136,4cyclictest3102626-21/usr/share/muni07:30:081
3085400994129,11cyclictest3023356-1kworker/1:0H+kblockd08:21:371
3085399994136,4cyclictest3309217-21kworker/u8:4+events_unbound12:17:000
3085406994037,2cyclictest3162738-21kworker/u8:1+flush-179:008:50:253
3085406994037,2cyclictest3162738-21kworker/u8:1+flush-179:008:50:253
3085406994036,3cyclictest3197980-21kworker/u8:3+flush-179:009:40:123
3085406994036,3cyclictest3113204-21kworker/u8:0+flush-179:008:34:243
3085406994035,4cyclictest3162738-21kworker/u8:1+flush-179:009:30:263
3085406994035,3cyclictest3082139-21kworker/u8:3+events_unbound08:39:143
3085402994038,1cyclictest3241569-21kworker/2:1+pm10:40:292
3085402994038,1cyclictest3105265-21kworker/2:1+pm08:07:472
3085402994037,2cyclictest3169956-21kworker/u8:4+flush-179:009:12:192
3085402994037,2cyclictest3105265-21kworker/2:1+pm09:29:302
3085402994037,2cyclictest3105265-21kworker/2:1+pm08:42:562
3085402994037,2cyclictest3105265-21kworker/2:1+pm08:29:432
3085402994036,2cyclictest3356073-21kworker/2:2+pm12:18:042
3085402994018,2cyclictest3125728-13Compositor11:30:402
3085400994036,3cyclictest3130799-21kworker/u8:1+flush-179:008:16:581
3085400994035,4cyclictest247561-21ThreadPoolForeg11:25:281
3085399994033,6cyclictest3125688-21Chrome_ChildIOT10:17:010
3085406993937,1cyclictest3062951-1kworker/3:0H+kblockd07:43:033
3085406993936,2cyclictest3116444-21kworker/u8:2+events_unbound08:09:243
3085406993935,2cyclictest3226396-21kworker/u8:1+events_unbound10:13:143
3085406993934,4cyclictest3275119-21apt-get10:45:153
3085406993934,4cyclictest3275119-21apt-get10:45:143
3085406993933,5cyclictest3310905-21apt-get11:20:113
3085402993937,1cyclictest3356073-21kworker/2:2+pm12:38:232
3085402993937,1cyclictest3298930-21kworker/2:2+pm11:37:292
3085402993937,1cyclictest3298930-21kworker/2:2+pm11:28:322
3085402993937,1cyclictest3298930-21kworker/2:2+pm11:22:282
3085402993937,1cyclictest3241569-21kworker/2:1+pm10:37:372
3085402993937,1cyclictest3105265-21kworker/2:1+pm09:05:222
3085402993937,1cyclictest3105265-21kworker/2:1+pm08:53:132
3085402993937,1cyclictest3105265-21kworker/2:1+pm08:53:132
3085402993936,2cyclictest3356073-21kworker/2:2+pm12:33:152
3085402993936,2cyclictest3333876-21kworker/2:1+pm12:01:142
3085402993936,2cyclictest3333876-21kworker/2:1+pm12:00:012
3085402993936,2cyclictest3193449-21kworker/2:2+pm09:56:122
3085402993936,2cyclictest3125728-13Compositor12:06:572
3085402993936,2cyclictest3105265-21kworker/2:1+pm08:15:522
3085402993936,2cyclictest3105265-21kworker/2:1+pm07:50:052
3085402993935,3cyclictest3193449-21kworker/2:2+pm10:10:052
3085402993934,4cyclictest3125176-21/usr/share/muni08:00:042
3085400993936,2cyclictest3197980-21kworker/u8:3+flush-179:009:55:291
3085400993935,3cyclictest76405-21systemd-journal11:02:011
3085400993935,3cyclictest3169956-21kworker/u8:4+flush-179:010:05:281
3085399993935,3cyclictest3267719-21kworker/u8:3+flush-179:011:00:130
3085399993935,3cyclictest247557-21chrome10:55:220
3085399993933,4cyclictest3125725-21ThreadPoolForeg09:30:370
3085406993835,2cyclictest3048860-21kworker/u8:4+flush-179:007:15:093
3085402993836,1cyclictest3356073-21kworker/2:2+pm12:22:282
3085402993836,1cyclictest3241569-21kworker/2:1+pm10:31:112
3085402993836,1cyclictest3241569-21kworker/2:1+pm10:25:322
3085402993835,2cyclictest3356073-21kworker/2:2+pm12:26:132
3085402993835,2cyclictest3298930-21kworker/2:2+pm11:16:132
3085402993835,2cyclictest3193449-21kworker/2:2+pm10:01:422
3085402993835,2cyclictest3105265-21kworker/2:1+pm09:20:262
3085402993835,2cyclictest3105265-21kworker/2:1+pm08:45:222
3085402993835,2cyclictest3105265-21kworker/2:1+pm08:10:452
3085402993835,2cyclictest3073904-21kworker/2:0+pm07:16:522
3085402993835,2cyclictest247573-21ThreadPoolForeg07:25:162
3085402993834,3cyclictest3267719-21kworker/u8:3+events_unbound11:05:162
3085402993834,3cyclictest3105265-21kworker/2:1+pm08:33:582
3085402993834,2cyclictest3073904-21kworker/2:0+pm07:21:552
3085402993833,4cyclictest3125724-21ThreadPoolForeg12:10:312
308540299381,14cyclictest247557-21chrome07:36:332
3085400993836,1cyclictest1260-21snmpd12:22:071
3085400993833,4cyclictest76405-21systemd-journal10:05:001
3085400993832,4cyclictest3361440-21/usr/share/muni12:10:031
3085400993823,14cyclictest3241866-21kworker/u8:2+flush-179:010:30:181
3085399993836,1cyclictest3175268-21kworker/0:2+pm10:29:400
3085399993833,4cyclictest3353011-21kworker/u8:0+flush-179:012:10:130
3085399993833,4cyclictest3125724-21ThreadPoolForeg09:26:010
3085402993735,1cyclictest3105265-21kworker/2:1+pm09:00:432
3085402993735,1cyclictest3105265-21kworker/2:1+pm08:59:532
3085402993735,1cyclictest3105265-21kworker/2:1+pm08:23:392
3085402993734,2cyclictest3334896-21kworker/u8:1+flush-179:011:55:032
3085402993734,2cyclictest3241569-21kworker/2:1+pm10:55:122
3085402993734,2cyclictest3241569-21kworker/2:1+pm10:21:142
3085402993734,2cyclictest3193449-21kworker/2:2+pm09:32:202
3085402993734,2cyclictest3125648-13Chrome_IOThread11:13:332
3085402993734,2cyclictest3105265-21kworker/2:1+pm08:39:012
3085402993733,2cyclictest3193449-21kworker/2:2+pm10:05:562
3085400993735,1cyclictest3085316-21kworker/1:1+pm07:13:151
3085400993734,2cyclictest3334896-21kworker/u8:1+flush-179:011:45:171
3085400993734,2cyclictest3211211-21kworker/1:1+pm10:59:301
3085400993734,2cyclictest3023356-1kworker/1:0H+kblockd09:45:131
3085400993734,2cyclictest3023356-1kworker/1:0H+kblockd09:20:171
3085400993733,3cyclictest3048860-21kworker/u8:4+flush-179:007:40:231
3085400993732,4cyclictest247560-21ThreadPoolForeg09:07:531
3085400993732,3cyclictest247561-21ThreadPoolForeg08:45:021
3085400993729,7cyclictest3048860-21kworker/u8:4+flush-179:007:25:281
3085399993734,2cyclictest3309903-1kworker/0:2H+kblockd11:57:300
3085399993734,2cyclictest3048860-21kworker/u8:4+flush-179:008:02:340
3085399993734,2cyclictest3048800-1kworker/0:1H+kblockd09:10:480
3085399993734,2cyclictest3048800-1kworker/0:1H+kblockd08:53:080
3085399993734,2cyclictest3048800-1kworker/0:1H+kblockd08:53:080
3085399993734,2cyclictest247515-21ThreadPoolForeg12:07:440
3085399993733,3cyclictest3309903-1kworker/0:2H+kblockd12:31:390
3085399993733,3cyclictest3241866-21kworker/u8:2+flush-179:011:16:380
3085399993733,3cyclictest3197980-21kworker/u8:3+flush-179:009:55:070
3085399993732,3cyclictest3267719-21kworker/u8:3+events_unbound10:45:010
3085399993731,4cyclictest3351251-21/usr/share/muni12:00:030
3085399993731,4cyclictest3150307-21munin-update08:36:140
3085400993634,1cyclictest3023356-1kworker/1:0H+kblockd11:21:131
3085400993634,1cyclictest3023356-1kworker/1:0H+kblockd10:55:011
3085400993634,1cyclictest3023356-1kworker/1:0H+kblockd09:29:281
3085400993633,2cyclictest3288754-21kworker/u8:1+events_unbound11:05:251
3085400993633,2cyclictest3023356-1kworker/1:0H+kblockd08:44:591
3085400993632,3cyclictest3169503-21munin-update09:00:041
3085400993631,4cyclictest3242486-21/usr/share/muni10:15:011
3085400993611,24cyclictest0-21swapper/108:35:031
3085399993635,1cyclictest3102051-21kworker/0:2+pm07:59:050
3085399993634,1cyclictest3309903-1kworker/0:2H+kblockd11:21:060
3085399993634,1cyclictest3048800-1kworker/0:1H+kblockd10:22:190
3085399993634,1cyclictest3048800-1kworker/0:1H+kblockd09:21:150
3085399993634,1cyclictest3048800-1kworker/0:1H+kblockd08:31:140
3085399993634,1cyclictest3048800-1kworker/0:1H+kblockd08:20:150
3085399993633,2cyclictest3175268-21kworker/0:2+pm09:38:520
3085399993633,2cyclictest3048800-1kworker/0:1H+kblockd08:10:410
3085399993632,2cyclictest3309903-1kworker/0:2H+kblockd12:36:530
3085399993632,2cyclictest3142643-21snmp_areswitch.08:25:040
3085399993631,4cyclictest247516-21Chrome_ChildIOT09:04:150
3085399993631,3cyclictest3082139-21kworker/u8:3+flush-179:008:40:180
3085406993533,1cyclictest3062951-1kworker/3:0H+kblockd08:26:143
3085400993532,2cyclictest3125726-13Chrome_ChildIOT07:20:361
3085400993532,2cyclictest3119659-21kworker/1:2+pm09:43:361
3085400993532,2cyclictest3023356-1kworker/1:0H+kblockd12:30:041
3085400993532,2cyclictest3023356-1kworker/1:0H+kblockd11:36:381
3085400993532,2cyclictest3023356-1kworker/1:0H+kblockd09:53:061
3085400993532,2cyclictest3023356-1kworker/1:0H+kblockd07:56:391
3085400993532,2cyclictest1254-21openvpn10:40:101
3085400993531,3cyclictest247560-21ThreadPoolForeg08:30:431
3085400993528,6cyclictest3125721-21chrome11:41:271
3085399993534,1cyclictest3048800-1kworker/0:1H+kblockd07:10:090
3085399993533,1cyclictest3371055-21kworker/0:0+pm12:24:530
3085399993533,1cyclictest3048800-1kworker/0:1H+kblockd11:11:150
3085399993533,1cyclictest3048800-1kworker/0:1H+kblockd10:53:250
3085399993532,2cyclictest3090633-21kworker/0:1+pm07:22:150
3085399993532,2cyclictest3048800-1kworker/0:1H+kblockd10:01:020
3085399993532,2cyclictest3048800-1kworker/0:1H+kblockd07:45:000
3085399993531,3cyclictest3288754-21kworker/u8:1+events_unbound11:27:370
3085399993530,4cyclictest3048860-21kworker/u8:4+flush-179:007:30:090
3085406993429,4cyclictest3241866-21kworker/u8:2+flush-179:011:30:303
3085400993432,1cyclictest3023356-1kworker/1:0H+kblockd07:40:021
3085400993431,2cyclictest3023356-1kworker/1:0H+kblockd12:15:051
3085400993431,2cyclictest3023356-1kworker/1:0H+kblockd08:09:241
3085400993431,2cyclictest247557-21chrome11:30:151
3085400993429,4cyclictest3304539-21/usr/share/muni11:15:011
3085400993429,3cyclictest3303983-31munin-graph11:11:381
3085400993428,5cyclictest3125726-13Chrome_ChildIOT10:24:431
3085399993433,1cyclictest3172218-21kworker/0:1+pm09:09:040
3085399993432,1cyclictest3102051-21kworker/0:2+pm07:54:190
3085399993432,1cyclictest3048800-1kworker/0:1H+kblockd09:53:140
3085400993330,2cyclictest3090025-21kworker/u8:1+events_unbound07:18:311
3085400993329,2cyclictest3125726-13Chrome_ChildIOT08:00:121
3085400993328,4cyclictest3117019-21/usr/share/muni07:50:021
3085400993323,9cyclictest3241866-21kworker/u8:2+events_unbound10:25:221
3085400993319,2cyclictest3125726-13Chrome_ChildIOT08:55:441
3085399993331,2cyclictest3048800-1kworker/0:1H+kblockd07:18:110
3085399993330,2cyclictest3048800-1kworker/0:1H+kblockd08:56:370
3085399993330,2cyclictest3048800-1kworker/0:1H+kblockd08:45:400
3085399993326,5cyclictest3185213-31munin-graph09:16:330
3085400993228,3cyclictest3125627-21ChromeDriver00:55:191
33252342310,1chrt3325232-21fw_packets11:35:050
308539999311,29cyclictest3260043-21cstates10:30:190
3085400993029,1cyclictest1260-21snmpd12:07:171
3085399993029,1cyclictest1260-21snmpd10:46:570
3085399993029,1cyclictest1260-21snmpd10:46:570
3085399993029,1cyclictest1260-21snmpd07:37:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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