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2025-10-31 - 22:52
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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 Oct 31, 2025 12:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14250022219183,25sleep20-21swapper/207:06:492
14250252218189,18sleep00-21swapper/007:07:070
14251442217182,24sleep30-21swapper/307:08:393
14251092216187,18sleep10-21swapper/107:08:131
142543999912,56cyclictest18250irq/16-mmc011:45:012
1425443997165,5cyclictest1622248-21kworker/u8:3+flush-179:010:25:303
1425443996965,3cyclictest1637457-21kworker/u8:1+events_unbound10:35:153
1425443996359,3cyclictest1684598-21kworker/u8:5+flush-179:011:40:093
1425437996242,2cyclictest1462512-21snmp_areswitch.07:45:021
1425433995852,4cyclictest1705137-21/usr/share/muni11:40:130
1425437995752,3cyclictest1653618-21/usr/share/muni10:50:051
1425443995551,3cyclictest1446503-21kworker/u8:1+events_unbound07:40:153
1425443995445,6cyclictest1509023-21/usr/share/muni08:30:123
1425439995348,3cyclictest1492615-21kworker/u8:4+flush-179:008:35:342
1425443995248,3cyclictest1648109-21kworker/u8:2+events_unbound11:45:143
1425439995248,3cyclictest1660173-21kworker/u8:1+events_unbound11:15:202
1425443995147,3cyclictest1565309-21kworker/u8:1+events_unbound09:37:193
1425443995146,4cyclictest1528579-21kworker/u8:0+events_unbound08:50:133
1425443995146,4cyclictest1524404-21chrome08:45:023
1425443995046,2cyclictest1709691-21kworker/u8:1+flush-179:012:15:303
1425433995046,3cyclictest1570980-21/usr/share/muni09:30:150
1425443994945,3cyclictest1709691-21kworker/u8:1+flush-179:012:10:093
1425443994945,3cyclictest1709691-21kworker/u8:1+events_unbound11:50:203
1425443994945,3cyclictest1617043-21kworker/u8:1+events_unbound10:20:093
1425443994945,3cyclictest1472274-21kworker/u8:3+flush-179:008:00:273
1425443994945,3cyclictest1393732-21kworker/u8:2+events_unbound10:10:093
1425443994935,13cyclictest1446503-21kworker/u8:1+events_unbound07:30:293
1425439994936,2cyclictest1441631-21kworker/2:0+pm08:00:562
1425443994845,2cyclictest1492615-21kworker/u8:4+flush-179:008:35:153
1425443994844,3cyclictest1747030-21kworker/u8:3+flush-179:012:20:183
1425443994844,3cyclictest1709691-21kworker/u8:1+flush-179:012:30:273
1425443994844,3cyclictest1601785-21kworker/u8:0+events_unbound10:30:083
1425443994844,3cyclictest1528579-21kworker/u8:0+events_unbound09:25:073
1425443994843,4cyclictest1367650-21kworker/u8:4+flush-179:007:10:293
1425437994842,5cyclictest1467726-21/usr/share/muni07:50:011
1425437994731,15cyclictest3614178-1kworker/1:1H+kblockd07:20:051
1425433994734,12cyclictest1540177-1kworker/0:2H+kblockd10:40:290
1425443994642,3cyclictest1580800-21kworker/u8:0+events_unbound09:40:143
1425443994634,11cyclictest749633-1kworker/3:0H+kblockd11:14:483
1425439994644,1cyclictest1699717-21kworker/2:2+pm12:01:122
1425439994642,3cyclictest1617043-21kworker/u8:1+flush-179:010:20:252
1425437994632,12cyclictest1632974-21/usr/share/muni10:30:041
1425443994541,3cyclictest1632216-21kworker/u8:4+flush-179:010:50:203
1425443994541,3cyclictest1499059-21kworker/u8:1+flush-179:009:00:343
1425443994541,3cyclictest1499059-21kworker/u8:1+events_unbound08:40:083
1425443994541,2cyclictest1539349-21kworker/u8:3+events_unbound09:15:093
1425433994540,3cyclictest1524102-21latency_hist08:45:010
1425443994440,3cyclictest1499059-21kworker/u8:1+events_unbound08:21:093
1425443994440,3cyclictest1472274-21kworker/u8:3+flush-179:008:05:173
1425443994440,3cyclictest1446503-21kworker/u8:1+events_unbound07:55:353
1425443994440,3cyclictest1393732-21kworker/u8:2+events_unbound08:17:553
1425443994440,3cyclictest1393732-21kworker/u8:2+events_unbound08:17:553
1425443994433,3cyclictest1367650-21kworker/u8:4+events_unbound07:36:403
1425439994440,3cyclictest1704876-21munin-update11:40:302
1425439994437,5cyclictest1425582-21/usr/share/muni07:10:022
1425443994340,2cyclictest1637457-21kworker/u8:1+flush-179:010:40:213
1425443994338,3cyclictest1539349-21kworker/u8:3+flush-179:009:10:363
1425439994336,6cyclictest1700025-21/usr/share/muni11:35:042
1425437994339,3cyclictest1524416-21/usr/share/muni08:45:201
1425433994339,3cyclictest1524400-21CacheThread_Blo08:45:010
1425443994239,2cyclictest1539349-21kworker/u8:3+events_unbound10:05:303
1425443994238,3cyclictest1747030-21kworker/u8:3+flush-179:012:35:373
1425443994238,3cyclictest1678648-21kworker/u8:0+flush-179:011:55:263
1425443994238,3cyclictest1622248-21kworker/u8:3+events_unbound11:00:043
1425443994238,3cyclictest1565309-21kworker/u8:1+flush-179:009:45:203
1425443994238,3cyclictest1539349-21kworker/u8:3+events_unbound09:06:553
1425443994238,3cyclictest1477382-21kworker/u8:0+flush-179:008:15:013
1425443994238,3cyclictest1367650-21kworker/u8:4+flush-179:007:20:213
1425443994236,4cyclictest1598380-21apt-get09:55:123
1425437994238,3cyclictest1472274-21kworker/u8:3+flush-179:008:05:191
1425437994236,4cyclictest1673777-21latency_hist11:10:011
1425437994236,4cyclictest1586646-21/usr/share/muni09:45:221
1425433994239,2cyclictest1622248-21kworker/u8:3+events_unbound10:55:160
1425433994238,3cyclictest1618787-21apt-get10:15:110
142543399420,40cyclictest247545-13VizCompositorTh12:20:160
1425443994138,2cyclictest1709691-21kworker/u8:1+flush-179:012:00:223
1425443994138,2cyclictest1622248-21kworker/u8:3+events_unbound10:55:303
1425443994134,5cyclictest1648389-21ThreadPoolForeg10:45:023
1425439994138,2cyclictest1441631-21kworker/2:0+pm08:16:182
1425439994138,2cyclictest1441631-21kworker/2:0+pm08:16:182
1425439994135,4cyclictest1617328-21munin-update10:15:312
1425439994134,5cyclictest247515-21ThreadPoolForeg11:00:282
1425439994121,19cyclictest1648109-21kworker/u8:2+flush-179:012:19:592
1425437994138,2cyclictest1729982-31munin-html12:00:391
1425433994138,2cyclictest1699811-21kworker/0:3+pm12:34:380
1425433994136,4cyclictest1448360-21apt-get07:30:150
1425443994037,2cyclictest1575607-21kworker/3:2+pm11:39:333
1425443994037,2cyclictest1446503-21kworker/u8:1+events_unbound07:51:233
1425443994036,3cyclictest1446503-21kworker/u8:1+flush-179:007:45:193
1425443994035,4cyclictest1678648-21kworker/u8:0+events_unbound12:07:433
1425443994034,3cyclictest1565309-21kworker/u8:1+events_unbound09:31:083
1425443994033,3cyclictest1528579-21kworker/u8:0+events_unbound09:20:093
1425439994038,1cyclictest1699717-21kworker/2:2+pm11:52:042
1425439994038,1cyclictest1678648-21kworker/u8:0+flush-179:012:05:092
1425439994038,1cyclictest1617236-21kworker/2:1+pm10:38:162
1425439994038,1cyclictest1441631-21kworker/2:0+pm09:20:502
1425439994037,2cyclictest1699717-21kworker/2:2+pm12:32:132
1425439994037,2cyclictest1617236-21kworker/2:1+pm10:54:192
1425439994037,2cyclictest1617236-21kworker/2:1+pm10:42:072
1425439994037,2cyclictest1560051-31munin-html09:15:382
1425439994037,2cyclictest1441631-21kworker/2:0+pm07:55:532
1425439994037,2cyclictest1413991-21kworker/2:2+pm07:17:052
1425439994017,22cyclictest1565309-21kworker/u8:1+flush-179:009:35:192
1425437994037,2cyclictest1709353-31munin-html11:40:341
1425433994038,1cyclictest1540177-1kworker/0:2H+kblockd11:12:030
1425433994037,2cyclictest1503386-21kworker/0:0+pm09:27:180
1425433994037,2cyclictest1503386-21kworker/0:0+pm09:08:190
1425443993930,8cyclictest1393732-21kworker/u8:2+flush-179:007:28:353
1425439993937,1cyclictest1699717-21kworker/2:2+pm12:36:022
1425439993937,1cyclictest1617236-21kworker/2:1+pm10:30:312
1425439993937,1cyclictest1586000-21kworker/2:2+pm10:05:502
1425439993937,1cyclictest1441631-21kworker/2:0+pm07:30:552
1425439993937,1cyclictest1441631-21kworker/2:0+pm07:27:242
1425439993936,2cyclictest1699717-21kworker/2:2+pm12:20:292
1425439993936,2cyclictest1699717-21kworker/2:2+pm11:57:362
1425439993936,2cyclictest1672323-21kworker/2:1+pm11:12:492
1425439993936,2cyclictest1586000-21kworker/2:2+pm09:49:142
1425439993936,2cyclictest1441631-21kworker/2:0+pm09:06:382
1425439993936,2cyclictest1441631-21kworker/2:0+pm08:20:152
1425439993936,2cyclictest1441631-21kworker/2:0+pm07:36:332
1425439993933,5cyclictest247561-21ThreadPoolForeg10:25:242
1425437993934,4cyclictest1648343-21CompositorTileW10:45:031
1425433993937,1cyclictest1540177-1kworker/0:2H+kblockd11:07:410
1425433993936,2cyclictest1678648-21kworker/u8:0+flush-179:011:51:300
142543399391,37cyclictest247418-21python309:55:270
142543399390,38cyclictest247449-2159acd6cd00851b412:05:270
16588662380,1chrt1658719-21/usr/share/muni10:55:032
1425443993836,1cyclictest1575607-21kworker/3:2+pm11:19:383
1425443993835,2cyclictest1660173-21kworker/u8:1+events_unbound11:25:083
1425443993835,2cyclictest1539349-21kworker/u8:3+flush-179:008:58:443
1425443993835,2cyclictest1539349-21kworker/u8:3+flush-179:008:58:443
1425443993834,3cyclictest749633-1kworker/3:0H+kblockd10:04:193
1425443993834,3cyclictest1684598-21kworker/u8:5+events_unbound11:20:263
1425439993836,1cyclictest1699717-21kworker/2:2+pm12:25:182
1425439993836,1cyclictest1586000-21kworker/2:2+pm10:15:002
1425439993836,1cyclictest1441631-21kworker/2:0+pm09:43:162
1425439993836,1cyclictest1441631-21kworker/2:0+pm09:10:042
1425439993836,1cyclictest1441631-21kworker/2:0+pm08:59:092
1425439993836,1cyclictest1441631-21kworker/2:0+pm08:59:092
1425439993836,1cyclictest1441631-21kworker/2:0+pm08:51:582
1425439993835,2cyclictest904504-1kworker/2:2H+kblockd12:11:072
1425439993835,2cyclictest1672323-21kworker/2:1+pm11:31:072
1425439993835,2cyclictest1672323-21kworker/2:1+pm11:20:332
1425439993835,2cyclictest1586000-21kworker/2:2+pm09:51:162
1425439993835,2cyclictest1441631-21kworker/2:0+pm08:45:542
1425439993835,2cyclictest1441631-21kworker/2:0+pm07:50:032
1425439993835,2cyclictest1413991-21kworker/2:2+pm07:20:352
1425439993834,3cyclictest1441631-21kworker/2:0+pm08:31:332
1425437993837,1cyclictest1430618-21kworker/1:2+pm07:29:581
1425437993836,1cyclictest1260-21snmpd10:09:141
1425437993834,2cyclictest3614178-1kworker/1:1H+kblockd09:05:011
1425433993836,1cyclictest1699811-21kworker/0:3+pm12:02:330
1425433993836,1cyclictest1678544-21kworker/0:0+pm11:18:430
1425433993836,1cyclictest1570399-21kworker/0:2+pm10:09:540
1425433993834,3cyclictest1632216-21kworker/u8:4+flush-179:010:29:330
1425433993833,4cyclictest1648342-21CacheThread_Blo10:45:010
1425443993733,3cyclictest1393732-21kworker/u8:2+flush-179:009:54:473
1425443993733,3cyclictest1393732-21kworker/u8:2+events_unbound10:17:383
1425443993722,14cyclictest1709691-21kworker/u8:1+events_unbound12:25:413
1425439993735,1cyclictest1441631-21kworker/2:0+pm09:30:092
1425439993735,1cyclictest1441631-21kworker/2:0+pm08:25:342
1425439993735,1cyclictest1441631-21kworker/2:0+pm07:40:102
1425439993734,2cyclictest1441631-21kworker/2:0+pm09:26:142
1425439993734,2cyclictest1441631-21kworker/2:0+pm08:11:562
1425439993732,4cyclictest247515-21ThreadPoolForeg08:40:392
1425437993736,1cyclictest1581065-21kworker/1:1+pm11:57:411
1425437993735,1cyclictest1487925-21kworker/1:2+pm09:33:571
1425437993734,2cyclictest3614178-1kworker/1:1H+kblockd10:25:541
1425437993734,2cyclictest3614178-1kworker/1:1H+kblockd10:15:561
1425437993734,2cyclictest3614178-1kworker/1:1H+kblockd09:51:121
1425437993734,2cyclictest1446503-21kworker/u8:1+flush-179:007:35:001
142543799373,33cyclictest29-21ksoftirqd/112:15:191
1425433993735,1cyclictest1699811-21kworker/0:3+pm11:46:580
1425433993734,2cyclictest1678544-21kworker/0:0+pm11:28:440
1425433993734,2cyclictest1540177-1kworker/0:2H+kblockd12:16:360
1425433993734,2cyclictest1540177-1kworker/0:2H+kblockd11:55:200
1425433993734,2cyclictest1374009-1kworker/0:0H+kblockd08:57:280
1425433993734,2cyclictest1374009-1kworker/0:0H+kblockd08:57:280
1425433993734,2cyclictest1374009-1kworker/0:0H+kblockd08:51:140
1425433993734,2cyclictest1374009-1kworker/0:0H+kblockd08:24:440
1425433993734,2cyclictest1374009-1kworker/0:0H+kblockd07:37:360
1425433993733,3cyclictest1393732-21kworker/u8:2+flush-179:009:46:190
1425439993635,1cyclictest1441631-21kworker/2:0+pm07:46:342
1425439993634,1cyclictest904504-1kworker/2:2H+kblockd11:25:042
1425439993634,1cyclictest1617236-21kworker/2:1+pm10:45:152
1425439993634,1cyclictest1586000-21kworker/2:2+pm09:55:172
1425439993634,1cyclictest1441631-21kworker/2:0+pm09:03:542
1425439993633,2cyclictest904504-1kworker/2:2H+kblockd11:07:192
142543999361,1cyclictest1606475-31munin-html10:00:512
1425437993635,1cyclictest1581065-21kworker/1:1+pm11:23:191
1425437993634,1cyclictest3614178-1kworker/1:1H+kblockd08:10:191
1425437993634,1cyclictest1581065-21kworker/1:1+pm11:17:291
1425437993634,1cyclictest1430618-21kworker/1:2+pm07:18:491
1425437993633,2cyclictest3614178-1kworker/1:1H+kblockd12:20:521
1425437993633,2cyclictest1709691-21kworker/u8:1+events_unbound12:25:321
1425437993632,3cyclictest1493582-21/usr/share/muni08:15:171
1425437993632,3cyclictest1493582-21/usr/share/muni08:15:171
1425433993634,2cyclictest1374009-1kworker/0:0H+kblockd08:10:340
1425433993634,1cyclictest1540177-1kworker/0:2H+kblockd12:13:180
1425433993634,1cyclictest1540177-1kworker/0:2H+kblockd11:37:250
1425433993634,1cyclictest1540177-1kworker/0:2H+kblockd10:50:040
1425433993634,1cyclictest1540177-1kworker/0:2H+kblockd09:41:150
1425433993634,1cyclictest1374009-1kworker/0:0H+kblockd08:33:230
1425433993634,1cyclictest1374009-1kworker/0:0H+kblockd08:30:000
1425433993633,3cyclictest1528579-21kworker/u8:0+flush-179:009:15:090
1425433993633,2cyclictest1540177-1kworker/0:2H+kblockd12:28:280
1425433993633,2cyclictest1540177-1kworker/0:2H+kblockd10:35:160
1425433993633,2cyclictest1540177-1kworker/0:2H+kblockd10:33:380
1425433993633,2cyclictest1540177-1kworker/0:2H+kblockd09:10:030
1425433993633,2cyclictest1461942-21kworker/0:1+pm07:52:290
1425433993633,2cyclictest1374009-1kworker/0:0H+kblockd08:09:170
1425433993633,2cyclictest1374009-1kworker/0:0H+kblockd07:40:150
1425433993632,3cyclictest1747030-21kworker/u8:3+flush-179:012:36:140
1425433993617,3cyclictest247447-21ChromeDriver00:55:190
1425443993531,3cyclictest1648109-21kworker/u8:2+events_unbound11:05:293
1425443993530,3cyclictest1260-21snmpd08:25:123
1425443993529,3cyclictest1367650-21kworker/u8:4+events_unbound07:18:193
1425439993530,4cyclictest1393732-21kworker/u8:2+events_unbound08:05:132
1425437993533,2cyclictest3614178-1kworker/1:1H+kblockd11:31:491
1425437993533,1cyclictest3614178-1kworker/1:1H+kblockd11:46:371
1425437993532,2cyclictest3614178-1kworker/1:1H+kblockd12:30:541
1425437993532,2cyclictest1581065-21kworker/1:1+pm11:27:341
1425437993532,2cyclictest1581065-21kworker/1:1+pm09:42:041
1425437993531,2cyclictest3614178-1kworker/1:1H+kblockd08:00:341
1425433993534,1cyclictest1374009-1kworker/0:0H+kblockd08:38:430
1425433993533,1cyclictest1570399-21kworker/0:2+pm09:51:220
1425433993533,1cyclictest1540177-1kworker/0:2H+kblockd11:24:080
1425433993533,1cyclictest1540177-1kworker/0:2H+kblockd09:23:160
1425433993532,2cyclictest1540177-1kworker/0:2H+kblockd10:11:540
1425433993530,3cyclictest1694271-21munin-update11:30:040
1425437993432,1cyclictest3614178-1kworker/1:1H+kblockd11:36:011
1425437993432,1cyclictest3614178-1kworker/1:1H+kblockd10:20:041
1425437993432,1cyclictest3614178-1kworker/1:1H+kblockd09:29:321
1425437993432,1cyclictest1581065-21kworker/1:1+pm10:39:551
1425437993432,1cyclictest1260-21snmpd07:39:311
1425437993431,2cyclictest3614178-1kworker/1:1H+kblockd09:35:531
1425437993431,2cyclictest3614178-1kworker/1:1H+kblockd09:15:041
1425437993431,2cyclictest1260-21snmpd11:51:551
1425433993432,1cyclictest1540177-1kworker/0:2H+kblockd10:04:060
1425433993432,1cyclictest1540177-1kworker/0:2H+kblockd09:36:340
1425433993432,1cyclictest1425178-21kworker/0:2+pm07:22:390
1425433993432,1cyclictest1374009-1kworker/0:0H+kblockd07:15:050
1425433993431,2cyclictest1540177-1kworker/0:2H+kblockd10:21:580
1425433993431,2cyclictest1540177-1kworker/0:2H+kblockd09:00:050
1425433993431,2cyclictest1374009-1kworker/0:0H+kblockd08:05:000
1425437993331,1cyclictest3614178-1kworker/1:1H+kblockd08:50:301
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1425437993331,1cyclictest1487925-21kworker/1:2+pm09:14:401
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*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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