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2026-08-12 - 05:59
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack0slot2.osadl.org (updated Wed Aug 12, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
107532725040,7sleep40-21swapper/419:04:334
107534624535,7sleep50-21swapper/519:04:505
1075865994338,4cyclictest1469389-21latency_hist22:13:077
1075853994340,2cyclictest1759568-21kworker/u16:3+events_unbound00:28:094
10747592414,30sleep70-21swapper/719:03:407
107532023626,7sleep60-21swapper/619:04:276
1075865993331,1cyclictest0-21swapper/721:55:417
14432902320,1chrt1443289-21ssh21:59:127
1075865993226,5cyclictest1263978-21latency_hist20:43:087
1075857993230,2cyclictest1613704-21kworker/u16:1+events_unbound23:13:575
1075857993129,2cyclictest1720654-21kworker/u16:4+events_unbound00:06:005
1075857993028,2cyclictest1759568-21kworker/u16:3+events_unbound00:34:205
1075857993028,2cyclictest1481663-21kworker/u16:3+events_unbound00:01:445
1075857992927,2cyclictest1744896-21kworker/u16:0+events_unbound00:25:195
1075857992927,2cyclictest1541422-21kworker/u16:1+events_unbound22:44:035
1075857992927,2cyclictest1481663-21kworker/u16:3+events_unbound23:03:005
1075857992927,2cyclictest1407058-21kworker/u16:0+events_unbound22:25:235
1075853992927,2cyclictest370161-21kworker/u16:3+flush-8:020:03:374
1075853992927,2cyclictest1720654-21kworker/u16:4+flush-8:000:03:414
1075857992826,2cyclictest1613704-21kworker/u16:1+flush-8:023:54:235
1075857992826,2cyclictest1481663-21kworker/u16:3+events_unbound23:33:005
1075857992826,2cyclictest1481663-21kworker/u16:3+events_unbound22:54:035
1075857992826,2cyclictest1455173-21kworker/u16:1+events_unbound22:22:455
1075857992826,2cyclictest1407058-21kworker/u16:0+events_unbound22:07:405
1075857992826,2cyclictest1292859-21kworker/u16:0+events_unbound21:23:595
1075853992826,2cyclictest1348880-21kworker/u16:5+events_unbound21:58:354
1075853992826,2cyclictest1098066-21kworker/u16:4+flush-8:020:43:074
15399102270,1chrt1539908-21ssh22:39:117
1075865992726,0cyclictest0-21swapper/723:48:097
1075865992726,0cyclictest0-21swapper/722:26:417
1075865992725,1cyclictest1625853-21ssh23:17:187
1075865992725,1cyclictest0-21swapper/700:33:297
1075857992725,2cyclictest1576084-21kworker/u16:0+events_unbound23:07:245
1075857992725,2cyclictest1542098-21kworker/u16:2+events_unbound23:24:245
1075857992725,2cyclictest1292859-21kworker/u16:0+events_unbound21:17:445
1075857992725,2cyclictest1283134-21kworker/u16:1+events_unbound21:54:115
1075857992725,2cyclictest1205719-21kworker/u16:2+events_unbound20:52:455
1075857992725,2cyclictest1098066-21kworker/u16:4+events_unbound20:29:535
1075853992725,2cyclictest1419381-21kworker/u16:2+events_unbound21:53:244
1075853992724,2cyclictest1782960-21kworker/u16:2+events_unbound00:23:084
13730922260,1chrt1373093-21latency_hist21:33:077
1075865992624,1cyclictest1783313-21perf00:23:067
1075865992624,1cyclictest1783313-21perf00:23:067
1075857992624,2cyclictest370161-21kworker/u16:3+flush-8:019:28:095
1075857992624,2cyclictest1795470-21kworker/u16:5+events_unbound00:30:275
1075857992624,2cyclictest1542098-21kworker/u16:2+flush-8:023:20:155
1075857992624,2cyclictest1542098-21kworker/u16:2+events_unbound00:08:195
1075857992624,2cyclictest1481663-21kworker/u16:3+events_unbound23:47:205
1075857992624,2cyclictest1481663-21kworker/u16:3+events_unbound22:35:315
1075857992624,2cyclictest1419381-21kworker/u16:2+events_unbound22:00:405
1075857992624,2cyclictest1292859-21kworker/u16:0+events_unbound21:30:035
1075857992624,2cyclictest1211004-21kworker/u16:3+events_unbound20:22:535
1075857992624,2cyclictest1098066-21kworker/u16:4+flush-8:019:50:055
1075857992623,2cyclictest1098066-21kworker/u16:4+flush-8:019:53:135
1075853992623,2cyclictest1720654-21kworker/u16:4+flush-8:023:58:084
107586599250,24cyclictest1732957-21ssh23:59:097
1075857992523,2cyclictest1407058-21kworker/u16:0+events_unbound21:46:005
1075857992523,2cyclictest1292859-21kworker/u16:0+events_unbound21:21:155
1075857992523,2cyclictest1292859-21kworker/u16:0+events_unbound21:10:205
1075857992523,2cyclictest1283134-21kworker/u16:1+events_unbound21:08:075
1075857992523,2cyclictest1205719-21kworker/u16:2+events_unbound20:39:575
1075857992523,2cyclictest1098066-21kworker/u16:4+flush-8:020:37:015
1075857992523,2cyclictest1098066-21kworker/u16:4+events_unbound20:47:545
1075857992523,2cyclictest1098066-21kworker/u16:4+events_unbound20:14:585
1075857992523,2cyclictest1098066-21kworker/u16:4+events_unbound20:14:585
1075857992523,2cyclictest1098066-21kworker/u16:4+events_unbound19:18:045
1075853992523,2cyclictest1613704-21kworker/u16:1+events_unbound23:25:424
1075853992523,2cyclictest1348880-21kworker/u16:5+events_unbound21:39:024
1075865992418,5cyclictest1157210-21latency_hist19:48:087
1075857992422,2cyclictest1613704-21kworker/u16:1+events_unbound00:20:515
1075857992422,2cyclictest1613704-21kworker/u16:1+events_unbound00:20:515
1075857992422,2cyclictest1527103-21kworker/u16:0+flush-8:022:39:285
1075857992422,2cyclictest1481663-21kworker/u16:3+events_unbound23:51:095
1075857992422,2cyclictest1481663-21kworker/u16:3+events_unbound23:42:355
1075857992422,2cyclictest1348880-21kworker/u16:5+events_unbound21:35:355
1075857992422,2cyclictest1283134-21kworker/u16:1+flush-8:021:42:285
1075857992422,2cyclictest1283134-21kworker/u16:1+events_unbound20:59:225
1075857992422,2cyclictest1283134-21kworker/u16:1+events_unbound20:59:225
1075857992422,2cyclictest1156872-21kworker/u16:1+events_unbound19:46:015
1075857992422,2cyclictest1108731-21kworker/u16:0+flush-8:019:23:465
1075857992422,2cyclictest1098066-21kworker/u16:4+events_unbound20:08:535
1075857992421,2cyclictest1283134-21kworker/u16:1+events_unbound21:48:115
1075853992422,2cyclictest1576084-21kworker/u16:0+flush-8:022:58:094
1075853992422,2cyclictest1542098-21kworker/u16:2+events_unbound22:48:214
1075853992422,2cyclictest1076077-21kworker/u16:2+flush-8:019:13:094
1075853992420,3cyclictest1638795-21kworker/u16:0+flush-8:023:33:084
1075853992420,3cyclictest1638795-21kworker/u16:0+flush-8:023:33:084
1075865992321,1cyclictest0-21swapper/722:13:087
107586199230,16cyclictest0-21swapper/622:28:246
1075857992321,2cyclictest370161-21kworker/u16:3+flush-8:019:43:055
1075857992321,2cyclictest1744896-21kworker/u16:0+flush-8:000:14:315
1075857992321,2cyclictest1613704-21kworker/u16:1+events_unbound23:36:355
1075857992321,2cyclictest1613704-21kworker/u16:1+events_unbound23:36:355
1075857992321,2cyclictest1211004-21kworker/u16:3+events_unbound20:25:235
1075857992321,2cyclictest1167084-21kworker/u16:0+events_unbound20:06:015
1075857992321,2cyclictest1076077-21kworker/u16:2+events_unbound19:19:265
1075853992321,2cyclictest1613704-21kworker/u16:1+flush-8:000:08:284
1075853992321,2cyclictest1481663-21kworker/u16:3+events_unbound22:43:324
1075853992321,2cyclictest1283134-21kworker/u16:1+events_unbound21:33:284
1075853992321,2cyclictest1254299-21kworker/u16:0+flush-8:020:43:234
1075853992321,2cyclictest1108731-21kworker/u16:0+events_unbound19:38:234
1075853992321,2cyclictest1076077-21kworker/u16:2+events_unbound19:43:284
1075857992220,2cyclictest1576084-21kworker/u16:0+events_unbound23:11:155
1075857992220,2cyclictest1455173-21kworker/u16:1+flush-8:022:09:265
1075857992220,2cyclictest1407058-21kworker/u16:0+events_unbound22:14:365
1075857992220,2cyclictest1108731-21kworker/u16:0+events_unbound19:37:465
1075857992220,2cyclictest1098066-21kworker/u16:4+events_unbound20:56:225
1075857992220,2cyclictest1076077-21kworker/u16:2+events_unbound19:10:345
1075853992221,1cyclictest1348879-21kworker/u16:3+events_unbound21:29:534
1075853992220,2cyclictest1348880-21kworker/u16:5+events_unbound22:08:314
1075853992220,2cyclictest1348880-21kworker/u16:5+events_unbound21:25:414
1075853992219,2cyclictest1542098-21kworker/u16:2+events_unbound23:28:094
107586599210,19cyclictest1660510-21ssh23:29:177
1075857992119,2cyclictest1541422-21kworker/u16:1+flush-8:022:52:165
1075857992119,2cyclictest1505743-21kworker/u16:4+flush-8:022:30:465
1075853992119,2cyclictest1419381-21kworker/u16:2+events_unbound21:50:184
1075853992119,2cyclictest1292859-21kworker/u16:0+events_unbound21:15:584
1075865992019,0cyclictest0-21swapper/720:13:367
1075865992019,0cyclictest0-21swapper/720:13:367
1075865992019,0cyclictest0-21swapper/719:28:287
1075865992019,0cyclictest0-21swapper/700:03:087
1075865992018,1cyclictest1312523-21diskmemload00:10:497
1075865992018,1cyclictest0-21swapper/719:48:227
107586599200,18cyclictest1409044-21latency_hist21:48:077
1075857992018,2cyclictest1156872-21kworker/u16:1+events_unbound20:00:385
1075865991918,0cyclictest0-21swapper/723:27:107
1075865991918,0cyclictest0-21swapper/722:33:307
1075865991918,0cyclictest0-21swapper/719:18:177
1075865991915,3cyclictest1302-21snmpd20:02:487
1075853991917,2cyclictest1481663-21kworker/u16:3+events_unbound23:43:374
1075853991917,2cyclictest1407058-21kworker/u16:0+events_unbound21:45:414
1075853991917,2cyclictest1254299-21kworker/u16:0+flush-8:020:48:374
1075853991917,2cyclictest1156872-21kworker/u16:1+flush-8:019:48:284
1075865991817,0cyclictest0-21swapper/720:48:317
1075865991817,0cyclictest0-21swapper/700:14:447
1075865991816,1cyclictest1312523-21diskmemload22:43:387
107586599180,16cyclictest1358881-21ssh21:24:217
107586199180,18cyclictest0-21swapper/623:19:176
107586199180,17cyclictest1450765-21kthreadcore22:03:276
1075853991816,2cyclictest1720654-21kworker/u16:4+events_unbound00:19:174
1075853991816,2cyclictest1720654-21kworker/u16:4+events_unbound00:19:174
1075853991816,2cyclictest1613704-21kworker/u16:1+events_unbound23:41:184
1075865991716,0cyclictest0-21swapper/721:03:327
1075865991715,1cyclictest1099065-21cat19:18:077
1075861991716,1cyclictest0-21swapper/622:23:586
1075861991710,6cyclictest1755338-21kthreadcore00:08:276
1075853991715,2cyclictest370161-21kworker/u16:3+events_unbound19:53:344
1075853991715,2cyclictest1709017-21kworker/u16:0+events_unbound23:53:044
1075853991715,2cyclictest1233889-21kworker/u16:1+flush-8:020:23:364
1075865991615,0cyclictest0-21swapper/722:03:287
1075865991615,0cyclictest0-21swapper/721:38:227
1075865991614,1cyclictest0-21swapper/722:59:297
1075865991614,1cyclictest0-21swapper/721:34:427
1075865991613,2cyclictest1199029-21kthreadcore20:08:277
1075865991613,2cyclictest0-21swapper/722:28:077
1075865991610,5cyclictest6124-21gmain20:43:257
107586199169,6cyclictest1434521-21cat21:58:246
107586199160,15cyclictest1081116-21grep19:08:266
1075853991614,2cyclictest1613704-21kworker/u16:1+flush-8:023:54:184
1075853991614,2cyclictest1407058-21kworker/u16:0+flush-8:022:25:544
1075853991614,2cyclictest1098066-21kworker/u16:4+flush-8:021:03:384
1075853991613,2cyclictest1782960-21kworker/u16:2+flush-8:000:35:414
1075865991514,0cyclictest0-21swapper/721:20:177
1075865991513,1cyclictest1600731-21ssh23:05:177
107586599150,13cyclictest1312523-21diskmemload00:28:057
1075861991514,1cyclictest0-21swapper/623:09:596
107586199150,9cyclictest1266834-21cat20:43:276
107586199150,9cyclictest12552611fschecks_count20:38:196
107586199150,15cyclictest0-21swapper/623:57:266
107586199150,15cyclictest0-21swapper/623:24:576
107586199150,15cyclictest0-21swapper/621:56:216
107586199150,15cyclictest0-21swapper/621:24:306
107586199150,15cyclictest0-21swapper/600:35:076
107586199150,15cyclictest0-21swapper/600:23:326
107586199150,14cyclictest1364723-21kthreadcore21:28:266
1075853991513,2cyclictest1576084-21kworker/u16:0+flush-8:023:08:234
1075853991513,2cyclictest1467369-21kworker/u16:2+events_unbound22:29:414
1075853991513,2cyclictest1211004-21kworker/u16:3+flush-8:020:18:454
1075853991512,2cyclictest1542098-21kworker/u16:2+flush-8:022:53:274
1075865991413,0cyclictest0-21swapper/720:18:357
1075865991412,1cyclictest1335179-21ssh21:15:177
1075865991410,3cyclictest1685982-21sh23:41:487
1075865991410,3cyclictest1638381-21/usr/sbin/munin23:23:077
107586199145,8cyclictest1482770-21cat22:18:226
1075861991413,1cyclictest0-21swapper/623:30:386
1075861991413,1cyclictest0-21swapper/619:28:286
107586199140,1cyclictest0-21swapper/623:38:216
107586199140,14cyclictest0-21swapper/623:07:566
107586199140,13cyclictest1762050-21cut00:13:266
107586199140,13cyclictest1672069-21timerwakeupswit23:33:356
107586199140,13cyclictest1672069-21timerwakeupswit23:33:356
107586199140,13cyclictest1587734-21users22:58:346
107586199140,11cyclictest17750361kthreadcore00:18:256
107586199140,11cyclictest17750361kthreadcore00:18:256
1075853991413,1cyclictest0-21swapper/422:20:154
1075853991413,1cyclictest0-21swapper/421:20:114
1075853991412,2cyclictest1744896-21kworker/u16:0+events_unbound00:15:564
1075853991412,2cyclictest1283134-21kworker/u16:1+events_unbound21:11:174
1075853991412,2cyclictest1098066-21kworker/u16:4+flush-8:019:33:314
107585399140,14cyclictest0-21swapper/422:17:444
107586599139,3cyclictest1302-21snmpd20:59:387
107586599139,3cyclictest1302-21snmpd20:59:387
107586599139,3cyclictest1302-21snmpd20:35:107
107586599139,3cyclictest1302-21snmpd19:27:517
107586599138,4cyclictest1302-21snmpd21:10:597
107586599136,6cyclictest5741-21ssh-agent22:18:307
107586599130,11cyclictest1797140-21cat00:28:247
107586599130,11cyclictest1613701-21ssh23:12:087
107586199135,7cyclictest1221861-21kthreadcore20:18:286
1075861991312,1cyclictest0-21swapper/623:51:466
1075861991312,1cyclictest0-21swapper/621:44:416
1075861991312,1cyclictest0-21swapper/621:37:076
1075861991312,1cyclictest0-21swapper/600:02:386
107586199130,7cyclictest1562322-21cut22:48:296
107586199130,7cyclictest1536976-21grep22:38:266
107586199130,7cyclictest1476537-21tr22:13:296
107586199130,2cyclictest0-21swapper/619:23:446
107586199130,13cyclictest0-21swapper/620:26:386
107586199130,13cyclictest0-21swapper/600:30:236
107586199130,12cyclictest1568529-21grep22:53:246
107586199130,12cyclictest1327197-21kthreadcore21:13:256
107586199130,12cyclictest1203334-21kthreadcore20:08:296
107586199130,12cyclictest1154404-21cut19:43:276
1075853991311,2cyclictest1505743-21kworker/u16:4+flush-8:022:34:464
1075853991311,2cyclictest1419381-21kworker/u16:2+flush-8:022:03:324
1075853991311,2cyclictest1292859-21kworker/u16:0+flush-8:020:58:264
1075853991311,2cyclictest1292859-21kworker/u16:0+flush-8:020:58:264
1075853991311,2cyclictest1233889-21kworker/u16:1+events_unbound20:33:364
1075853991311,2cyclictest1098066-21kworker/u16:4+flush-8:020:28:234
1075853991311,2cyclictest1066301-21kworker/u16:1+flush-8:019:23:254
1075853991310,2cyclictest1185321-21needreboot19:58:334
107586599129,2cyclictest0-21swapper/723:43:337
107586599128,3cyclictest1302-21snmpd23:34:427
107586599128,3cyclictest1302-21snmpd23:34:427
107586599128,3cyclictest1302-21snmpd22:53:507
107586599128,3cyclictest1302-21snmpd20:07:287
107586599128,3cyclictest1302-21snmpd19:36:097
107586599128,3cyclictest1302-21snmpd19:09:267
107586599126,5cyclictest5965-21gmain19:40:457
107586599126,5cyclictest1722885-21latency_hist23:58:077
1075865991211,0cyclictest0-21swapper/721:48:177
1075865991211,0cyclictest0-21swapper/719:53:097
107586199125,6cyclictest1616771-21cut23:13:256
107586199125,6cyclictest1313591-21fschecks_count21:08:226
107586199125,6cyclictest0-21swapper/600:03:286
107586199124,6cyclictest0-21swapper/621:39:316
107586199123,8cyclictest1167386-21awk19:53:206
107586199123,8cyclictest1087468-21cut19:13:106
1075861991211,1cyclictest0-21swapper/622:44:456
107586199120,8cyclictest1337460-21cat21:18:226
107586199120,8cyclictest0-21swapper/622:34:236
107586199120,6cyclictest1166451-21cat19:48:336
107586199120,11cyclictest1458621-21cat22:08:216
107586199120,11cyclictest1290200-21grep20:53:286
107586199120,11cyclictest1249552-21kthreadcore20:33:296
107586199120,11cyclictest1207921-21cut20:13:266
107586199120,11cyclictest1207921-21cut20:13:266
107585399129,2cyclictest1066301-21kworker/u16:1+flush-8:019:18:474
1075853991211,1cyclictest0-21swapper/423:14:294
107585399120,12cyclictest0-21swapper/419:11:224
107586599117,3cyclictest6233-21gvfs-afc-volume20:28:267
107586599110,10cyclictest1565684-21ssh22:52:317
107586599110,10cyclictest1302-21snmpd20:27:257
107586199114,6cyclictest1296912-21kthreadcore20:58:276
107586199114,6cyclictest1296912-21kthreadcore20:58:276
1075861991110,1cyclictest0-21swapper/619:59:226
107586199110,11cyclictest0-21swapper/620:30:446
107586199110,10cyclictest1687536-21expr23:43:216
107586199110,10cyclictest1409844-21cat21:48:186
107586199110,10cyclictest1305817-21kthreadcore21:03:276
107586199110,10cyclictest1283244-21chrt20:50:436
107586199110,10cyclictest1187054-21expr20:03:276
107586199110,10cyclictest1128759-21cat19:33:206
107586199110,10cyclictest1101636-21kthreadcore19:18:266
107585399119,2cyclictest1613704-21kworker/u16:1+events_unbound23:22:174
107585399119,2cyclictest1167084-21kworker/u16:0+events_unbound20:13:304
107585399119,2cyclictest1167084-21kworker/u16:0+events_unbound20:13:304
107585399117,3cyclictest1098066-21kworker/u16:4+events_unbound19:28:334
1075853991110,1cyclictest0-21swapper/422:42:104
1075853991110,1cyclictest0-21swapper/420:53:414
107585399110,11cyclictest0-21swapper/420:13:014
107586599107,2cyclictest1293241-21sed20:58:077
107586199102,7cyclictest1140350-21kthreadcore19:38:256
107585399109,1cyclictest0-21swapper/423:04:434
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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