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2026-08-15 - 08:12
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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 rackeslot2.osadl.org (updated Sat Aug 15, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
118974821100,2sleep30-21swapper/320:15:163
12373642920,2sleep30-21swapper/320:50:263
13974392510,0sleep01397440-21/usr/sbin/munin22:45:060
1112419993519,11cyclictest759-1atopacctd22:10:201
14793742340,2sleep20-21swapper/223:40:152
13650662340,2sleep01364385-21ssh22:20:210
1112419993423,6cyclictest191rcu_preempt22:40:021
1112419993318,11cyclictest1271575-21latency_hist21:20:021
1112419992914,11cyclictest1402732-21grep22:45:251
1112419992820,7cyclictest664-21dbus-daemon22:25:001
13619652260,2sleep20-21swapper/222:20:192
1112419992620,2cyclictest69250irq/121-eno119:40:011
1112419992521,2cyclictest0-21swapper/122:05:041
1112419992517,7cyclictest759-1atopacctd22:30:011
1112418992417,6cyclictest1346027-21cpuspeed_turbos22:10:160
111241999239,9cyclictest1527223-21kthreadcore00:10:191
111241999234,10cyclictest1309-21mta-sts-daemon23:32:301
1112419992316,3cyclictest1326171-21kthreadcore21:55:221
111241999231,5cyclictest1034-21runrttasks19:31:141
1112419992315,7cyclictest1537030-21unixbench-2d00:15:261
1112419992315,7cyclictest0-21swapper/119:30:001
111241999231,3cyclictest1118163-21taskset19:12:281
1112418992320,2cyclictest1501225-21dump-pmu-power23:55:000
1112420992219,1cyclictest0-21swapper/220:10:022
111241999228,8cyclictest0-21swapper/122:54:561
111241999225,9cyclictest1034-21runrttasks00:38:061
111241999221,5cyclictest1034-21runrttasks00:07:321
111241999221,4cyclictest1263169-21taskset21:12:491
1112419992214,7cyclictest1183336-21cut20:10:021
1112419992214,7cyclictest0-21swapper/119:45:011
1112419992213,8cyclictest1-21systemd21:30:021
111241999220,5cyclictest1456295-21runrttasks23:24:361
111241999220,5cyclictest1034-21runrttasks23:46:321
1112418992219,2cyclictest1244220-21systemd21:00:010
1112418992219,2cyclictest1139782-21/usr/sbin/munin19:35:010
1112418992211,6cyclictest0-21swapper/021:35:020
1112420992118,1cyclictest0-21swapper/219:40:012
111241999213,10cyclictest0-21swapper/123:50:261
111241999211,5cyclictest1448413-21runrttasks23:18:061
111241999211,5cyclictest1213273-21runrttasks20:32:521
111241999211,5cyclictest1121796-21runrttasks19:20:071
111241999211,5cyclictest1034-21runrttasks23:27:081
111241999211,5cyclictest1034-21runrttasks22:18:261
111241999211,5cyclictest1034-21runrttasks21:46:591
111241999211,5cyclictest1034-21runrttasks21:40:341
111241999211,5cyclictest1034-21runrttasks20:29:371
111241999211,5cyclictest1034-21runrttasks19:15:071
111241999211,4cyclictest1344493-21runrttasks22:07:311
111241999211,4cyclictest1163862-21/usr/sbin/munin19:50:251
1112419992114,6cyclictest1516323-21cron00:05:001
1112419992114,3cyclictest1390588-21fschecks_count22:40:171
111241999211,3cyclictest1219142-21taskset20:35:471
1112419992113,7cyclictest1476467-21grep23:35:231
1112419992112,8cyclictest1486491-21apt-key23:45:011
111241999210,6cyclictest1286578-21aten2.4-expect21:30:131
111241999210,5cyclictest1539119-21taskset00:20:041
111241999210,5cyclictest1432761-21taskset23:05:401
111241999210,5cyclictest1418269-21runrttasks22:56:341
111241999210,5cyclictest1256505-21taskset21:09:531
111241999210,5cyclictest1243849-21taskset20:57:151
111241999210,5cyclictest1195619-21runrttasks20:20:041
111241999210,5cyclictest1158294-21taskset19:47:541
111241999210,5cyclictest1034-21runrttasks21:51:201
111241999210,4cyclictest1559679-21taskset00:31:301
111241999210,4cyclictest1176660-21taskset20:04:091
111241999210,4cyclictest1170460-21runrttasks19:57:481
1112418992112,5cyclictest1556241-21kthreadcore00:30:200
111241899211,15cyclictest1517676-21hddtemp_smartct00:05:180
1112418992110,6cyclictest0-21swapper/022:50:220
3240591200,3phc2sys0-21swapper/323:19:583
1112420992017,1cyclictest0-21swapper/222:30:192
1112420992017,1cyclictest0-21swapper/220:25:022
1112420992017,1cyclictest0-21swapper/219:45:012
111241999201,5cyclictest1299948-21runrttasks21:37:261
111241999201,5cyclictest1225298-21taskset20:41:321
111241999201,5cyclictest1034-21runrttasks23:56:051
1112419992012,3cyclictest1550616-21kthreadcore00:25:221
111241999201,12cyclictest1421145-21kthreadcore23:00:221
111241999200,5cyclictest1250323-21seq21:03:141
111241999200,5cyclictest1034-21runrttasks22:30:041
111241999200,4cyclictest1194854-21taskset20:15:431
111241999200,3cyclictest1232340-21aten2.4-expect20:50:091
111241999200,3cyclictest1231366-21taskset20:46:301
1112418992017,2cyclictest664-21dbus-daemon21:20:010
1112418992017,2cyclictest1397177-21/usr/sbin/munin22:45:010
1112418992017,2cyclictest1-21systemd20:05:030
1112418992017,2cyclictest0-21swapper/019:15:010
1112418992010,4cyclictest1479474-21cstates23:40:160
111242099198,3cyclictest0-21swapper/222:40:162
1112420991916,1cyclictest0-21swapper/222:10:022
1112420991916,1cyclictest0-21swapper/200:35:212
111241999190,5cyclictest1188801-21taskset20:10:421
111241999190,4cyclictest1440605-21runrttasks23:12:451
111241899199,5cyclictest0-21swapper/022:00:550
111241899199,5cyclictest0-21swapper/021:28:270
111241899197,7cyclictest0-21swapper/022:30:200
1112418991912,6cyclictest1490333-21kthreadcore23:45:210
1112418991912,5cyclictest1256811-21systemd-run21:10:020
1112418991910,7cyclictest0-21swapper/021:15:020
15254242180,1sleep20-21swapper/200:10:172
14247022180,1sleep00-21swapper/023:00:250
111242099189,5cyclictest0-21swapper/223:30:022
1112420991816,1cyclictest0-21swapper/223:55:012
1112420991816,1cyclictest0-21swapper/223:00:022
1112420991816,1cyclictest0-21swapper/220:05:022
1112420991815,1cyclictest0-21swapper/220:40:032
1112419991815,2cyclictest1277076-21grep21:20:271
111241999181,3cyclictest1112264-21latency_hist19:10:011
111241899188,5cyclictest0-21swapper/021:49:270
1112418991815,2cyclictest759-1atopacctd23:15:240
1112418991815,2cyclictest0-21swapper/000:20:010
1112418991811,6cyclictest0-21swapper/023:15:010
3240591172,2phc2sys0-21swapper/321:40:013
3240591170,2phc2sys0-21swapper/322:30:363
3240591170,2phc2sys0-21swapper/322:25:513
3240591170,2phc2sys0-21swapper/321:33:473
3240591170,2phc2sys0-21swapper/321:28:113
3240591170,2phc2sys0-21swapper/321:09:593
3240591170,2phc2sys0-21swapper/300:05:183
3240591170,1phc2sys0-21swapper/322:11:083
12840612170,2sleep20-21swapper/221:25:242
111242099171,7cyclictest0-21swapper/221:40:022
1112420991715,1cyclictest0-21swapper/219:35:012
1112420991715,1cyclictest0-21swapper/200:25:022
1112420991714,1cyclictest0-21swapper/223:20:272
1112420991714,1cyclictest0-21swapper/222:00:032
1112420991713,2cyclictest0-21swapper/221:55:032
111241899179,4cyclictest1256589-21diskmemload00:25:160
111241899172,8cyclictest0-21swapper/000:35:220
1112418991714,2cyclictest838-21gmain20:15:030
1112418991714,2cyclictest1387809-21threads22:35:270
1112418991713,3cyclictest1300-21mta-sts-daemon20:10:090
1112418991713,2cyclictest1471581-21sh23:35:020
1112418991711,5cyclictest268-21systemd-journal21:20:480
1112418991711,2cyclictest1157598rtkit-daemon23:59:170
111241899170,1cyclictest1531500-21ssh00:15:020
3240591160,2phc2sys0-21swapper/323:21:143
111242099162,6cyclictest0-21swapper/220:30:022
1112420991614,1cyclictest0-21swapper/221:00:012
1112420991613,1cyclictest0-21swapper/223:30:272
1112420991613,1cyclictest0-21swapper/223:15:032
1112420991613,1cyclictest0-21swapper/222:54:562
1112420991613,1cyclictest0-21swapper/221:00:262
1112420991613,1cyclictest0-21swapper/219:25:002
1112420991613,1cyclictest0-21swapper/200:25:262
1112420991610,4cyclictest1353108-21taskset22:15:022
111241899168,7cyclictest0-21swapper/023:09:570
111241899168,4cyclictest1304471-21kthreadcore21:40:210
111241899165,6cyclictest0-21swapper/019:25:370
1112418991613,2cyclictest1479021-21sh23:40:030
1112418991613,2cyclictest1170730-21idleruntime-cro20:00:010
1112418991613,2cyclictest1127561-21cut19:25:010
1112418991612,2cyclictest0-21swapper/022:10:030
111241899160,14cyclictest1121440-21munin-plugin-st19:20:000
3240591151,3phc2sys0-21swapper/323:54:563
3240591150,4phc2sys0-21swapper/323:29:593
3240591150,2phc2sys0-21swapper/323:56:123
3240591150,2phc2sys0-21swapper/322:58:493
3240591150,1phc2sys0-21swapper/322:18:423
111242099151,7cyclictest0-21swapper/220:49:592
111242099151,6cyclictest0-21swapper/200:20:012
1112420991513,1cyclictest0-21swapper/221:20:022
1112420991513,1cyclictest0-21swapper/219:15:022
1112420991513,1cyclictest0-21swapper/219:10:022
1112420991513,1cyclictest0-21swapper/200:06:212
1112420991513,1cyclictest0-21swapper/200:00:012
1112420991512,2cyclictest0-21swapper/222:04:482
1112420991512,1cyclictest0-21swapper/223:48:502
1112420991512,1cyclictest0-21swapper/222:48:282
1112420991512,1cyclictest0-21swapper/222:39:492
1112420991512,1cyclictest0-21swapper/221:46:172
1112420991511,2cyclictest0-21swapper/200:31:262
111241899158,6cyclictest0-21swapper/023:25:110
111241899158,2cyclictest0-21swapper/022:15:160
111241899156,8cyclictest1222768-21tr20:40:210
111241899156,2cyclictest0-21swapper/021:58:410
111241899156,1cyclictest1456409-21ssh23:24:570
111241899155,6cyclictest0-21swapper/000:20:220
1112418991512,2cyclictest268-21systemd-journal19:10:010
1112418991512,2cyclictest1317228-21irqstats21:50:200
1112418991512,2cyclictest1294873-21irqcore21:35:200
1112418991512,2cyclictest1227215-21kthreadcore20:45:200
1112418991512,2cyclictest1-21systemd19:50:380
1112418991512,2cyclictest1112416-21cyclictest19:35:230
1112418991511,3cyclictest1158107-21kworker/u16:4+nfsiod22:57:430
1112418991510,2cyclictest1373053-21ssh22:25:260
3240591143,2phc2sys0-21swapper/319:46:363
3240591141,3phc2sys0-21swapper/320:35:013
3240491140,1ptp4l0-21swapper/319:50:213
1112420991412,1cyclictest0-21swapper/223:00:182
1112420991412,1cyclictest0-21swapper/222:15:222
1112420991412,1cyclictest0-21swapper/221:20:222
1112420991412,1cyclictest0-21swapper/220:55:022
1112420991411,1cyclictest0-21swapper/223:35:112
1112420991411,1cyclictest0-21swapper/221:35:022
1112420991411,1cyclictest0-21swapper/221:10:262
1112420991411,1cyclictest0-21swapper/220:15:252
1112420991411,1cyclictest0-21swapper/220:00:012
1112420991411,1cyclictest0-21swapper/200:00:092
1112420991410,2cyclictest0-21swapper/223:07:562
1112420991410,2cyclictest0-21swapper/222:25:292
1112420991410,1cyclictest0-21swapper/220:10:182
111242099140,8cyclictest0-21swapper/223:15:532
111241899145,5cyclictest0-21swapper/020:32:360
1112418991411,2cyclictest1512089-21kthreadcore00:00:220
1112418991411,2cyclictest1309-21mta-sts-daemon19:40:160
1112418991411,2cyclictest1246000-21kthreadcore21:00:210
1112418991411,2cyclictest1200710-21timerandwakeup20:20:260
1112418991411,2cyclictest1153286-21fschecks_count19:45:140
3240591133,2phc2sys0-21swapper/323:10:203
3240591130,3phc2sys0-21swapper/319:44:563
3240591130,2phc2sys0-21swapper/323:49:153
3240591130,2phc2sys0-21swapper/323:02:343
3240591130,2phc2sys0-21swapper/322:24:593
3240591130,2phc2sys0-21swapper/321:11:053
1112420991311,1cyclictest0-21swapper/220:45:022
1112420991311,1cyclictest0-21swapper/220:30:192
1112420991310,1cyclictest0-21swapper/221:41:112
1112420991310,1cyclictest0-21swapper/221:05:212
1112420991310,1cyclictest0-21swapper/219:50:082
111241899139,3cyclictest1234271-21kthreadcore20:50:210
1112418991310,2cyclictest1300-21mta-sts-daemon20:35:190
1112418991310,2cyclictest1201896-21cpuspeed_turbos20:25:150
1112418991310,2cyclictest1178011-21gltestperf20:05:180
3240591123,3phc2sys0-21swapper/321:00:213
3240591122,2phc2sys0-21swapper/319:55:183
3240591120,2phc2sys0-21swapper/323:08:243
3240591120,2phc2sys0-21swapper/322:54:553
3240591120,2phc2sys0-21swapper/322:42:383
3240591120,2phc2sys0-21swapper/321:18:373
3240591120,2phc2sys0-21swapper/300:02:503
3240591120,1phc2sys0-21swapper/322:36:233
3240591120,1phc2sys0-21swapper/320:04:573
3240591120,1phc2sys0-21swapper/319:10:053
111242099129,1cyclictest0-21swapper/219:25:222
1112420991210,1cyclictest0-21swapper/219:45:132
3240591113,2phc2sys0-21swapper/320:10:253
3240591110,3phc2sys0-21swapper/319:39:593
3240591110,2phc2sys0-21swapper/321:57:393
3240591110,2phc2sys0-21swapper/319:10:013
3240591110,1phc2sys0-21swapper/320:21:593
3240591110,1phc2sys0-21swapper/319:16:593
13127952117,2sleep30-21swapper/321:45:223
111242099119,1cyclictest0-21swapper/219:18:362
3240591101,2phc2sys0-21swapper/322:00:213
3240591101,2phc2sys0-21swapper/320:49:593
3240591101,1phc2sys0-21swapper/322:08:153
3240591100,3phc2sys0-21swapper/320:44:583
3240591100,2phc2sys0-21swapper/323:40:303
3240591100,2phc2sys0-21swapper/323:35:173
3240591100,2phc2sys0-21swapper/321:44:023
3240591100,2phc2sys0-21swapper/321:20:213
3240591100,2phc2sys0-21swapper/320:25:153
3240591100,2phc2sys0-21swapper/320:05:283
3240591100,2phc2sys0-21swapper/319:34:583
3240591100,2phc2sys0-21swapper/300:35:453
3240591100,2phc2sys0-21swapper/300:31:443
3240591100,2phc2sys0-21swapper/300:26:443
3240591100,2phc2sys0-21swapper/300:22:183
3240591100,2phc2sys0-21swapper/300:16:253
324059192,2phc2sys0-21swapper/319:22:203
324059190,2phc2sys0-21swapper/323:30:123
324059190,2phc2sys0-21swapper/322:45:193
324059190,2phc2sys0-21swapper/321:50:073
324059190,2phc2sys0-21swapper/320:55:213
324059190,2phc2sys0-21swapper/320:35:253
324059190,2phc2sys0-21swapper/319:25:173
324059190,2phc2sys0-21swapper/300:10:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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