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2026-08-27 - 14:11
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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 792 highest latencies:
System rack0slot2.osadl.org (updated Thu Aug 27, 2026 12:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10428952740,0sleep71042894-21ssh09:24:097
76837025847,8sleep40-21swapper/407:05:374
76852725419,30sleep70-21swapper/707:07:487
76846824838,7sleep50-21swapper/507:06:585
768948993632,3cyclictest1043775-21kworker/u16:4+events_unbound09:35:225
768946993432,2cyclictest768729-21kworker/u16:1+events_unbound07:15:114
76705323312,17sleep60-21swapper/607:05:236
768948993231,1cyclictest1399161-21kworker/u16:1+events_unbound12:03:115
768948993129,2cyclictest1290863-21kworker/u16:4+events_unbound11:10:115
768948992928,1cyclictest1005253-21kworker/u16:5+events_unbound09:17:155
768946992723,3cyclictest1080561-21cat09:39:564
768948992624,2cyclictest1371939-21kworker/u16:2+flush-8:011:50:275
768948992624,2cyclictest1043775-21kworker/u16:4+events_unbound10:30:275
768948992623,2cyclictest1031333-21kworker/u16:2+flush-8:009:30:075
768948992621,4cyclictest977056-21cat08:54:565
768946992522,2cyclictest768729-21kworker/u16:1+flush-8:007:25:234
768948992422,2cyclictest1090486-21kworker/u16:3+flush-8:009:55:155
768948992421,3cyclictest860016-21kworker/u16:0+flush-8:008:55:145
768948992321,2cyclictest1031333-21kworker/u16:2+events_unbound10:00:255
768948992220,2cyclictest1090486-21kworker/u16:3+flush-8:010:20:125
768948992119,2cyclictest1177182-21kworker/u16:0+flush-8:010:55:225
768948992118,2cyclictest1312558-21kworker/u16:0+events_unbound11:34:585
768948992018,2cyclictest1487549-21kworker/u16:2+events_unbound12:30:345
768948992017,2cyclictest860016-21kworker/u16:0+flush-8:008:35:075
768946992018,2cyclictest948171-21kworker/u16:1+flush-8:009:05:124
768954991918,0cyclictest0-21swapper/709:14:467
76895499190,17cyclictest1422809-21ssh11:55:217
76895499190,17cyclictest1422809-21ssh11:55:217
768952991915,3cyclictest1290445-21cat11:04:566
768948991917,2cyclictest815717-21kworker/u16:2+flush-8:007:35:255
768948991917,2cyclictest1043775-21kworker/u16:4+events_unbound09:45:265
768946991917,2cyclictest1312558-21kworker/u16:0+events_unbound12:00:114
768954991817,0cyclictest0-21swapper/710:30:117
768954991816,1cyclictest0-21swapper/710:50:207
768954991816,1cyclictest0-21swapper/709:25:237
768954991815,2cyclictest1277-21snmpd09:44:097
768952991816,2cyclictest987001-21kworker/u16:3+events_unbound09:00:116
768952991816,2cyclictest880106-21kworker/u16:3+events_unbound08:05:116
768948991816,2cyclictest860016-21kworker/u16:0+flush-8:008:30:245
768948991816,2cyclictest1399161-21kworker/u16:1+events_unbound12:20:095
768948991816,2cyclictest1043775-21kworker/u16:4+events_unbound10:05:455
768946991814,3cyclictest801841-21latency_hist07:24:574
768954991716,0cyclictest0-21swapper/710:59:567
768954991714,2cyclictest1277-21snmpd08:26:527
76895499170,15cyclictest1277-21snmpd09:18:337
768948991715,2cyclictest1399161-21kworker/u16:1+events_unbound12:29:185
768948991713,3cyclictest1312558-21kworker/u16:0+flush-8:011:49:565
768948991713,3cyclictest1277232-21kworker/u16:1+flush-8:011:05:215
768954991614,1cyclictest0-21swapper/712:15:197
76895499160,14cyclictest1311830-21ssh11:10:207
76895499160,14cyclictest0-21swapper/711:25:197
768948991613,2cyclictest1177182-21kworker/u16:0+flush-8:011:00:155
768948991612,3cyclictest1177182-21kworker/u16:0+events_unbound10:45:125
768948991611,4cyclictest1204091-21kworker/u16:2+events_unbound10:54:565
768946991614,2cyclictest1399161-21kworker/u16:1+events_unbound12:20:114
768946991614,2cyclictest1177182-21kworker/u16:0+events_unbound10:25:104
76894699160,1cyclictest0-21swapper/411:45:204
768954991511,3cyclictest1277-21snmpd07:52:097
76895499150,14cyclictest938050-21turbostat08:34:577
76895499150,14cyclictest0-21swapper/708:35:197
76895499150,14cyclictest0-21swapper/707:25:207
76895499150,13cyclictest1277-21snmpd08:47:057
76895499150,13cyclictest0-21swapper/712:10:187
768952991510,4cyclictest879715-21latency_hist08:04:576
768952991510,4cyclictest1179296-21cat10:19:566
76895299150,1cyclictest0-21swapper/607:19:576
76895299150,15cyclictest86-21ksoftirqd/612:12:326
76895299150,15cyclictest0-21swapper/609:17:336
768948991512,2cyclictest1399161-21kworker/u16:1+events_unbound12:35:065
76894699150,14cyclictest0-21swapper/409:15:094
768954991413,0cyclictest0-21swapper/709:00:257
76895499140,1cyclictest0-21swapper/711:45:227
76895499140,1cyclictest0-21swapper/711:05:187
76895499140,1cyclictest0-21swapper/710:05:227
76895499140,1cyclictest0-21swapper/709:50:227
76895499140,1cyclictest0-21swapper/709:50:227
76895499140,1cyclictest0-21swapper/708:00:227
76895499140,13cyclictest0-21swapper/709:37:187
768952991413,1cyclictest0-21swapper/611:54:446
768952991413,1cyclictest0-21swapper/610:21:246
768952991413,1cyclictest0-21swapper/609:21:296
76895299140,1cyclictest0-21swapper/611:30:366
76895299140,1cyclictest0-21swapper/609:32:036
76895299140,14cyclictest0-21swapper/609:58:046
76895299140,14cyclictest0-21swapper/609:50:116
76895299140,14cyclictest0-21swapper/609:50:116
76895299140,14cyclictest0-21swapper/607:55:256
76894899149,4cyclictest1092783-21latency_hist09:44:565
768948991412,2cyclictest768729-21kworker/u16:1+events_unbound07:30:105
768948991412,2cyclictest1371939-21kworker/u16:2+events_unbound11:55:185
768948991412,2cyclictest1371939-21kworker/u16:2+events_unbound11:55:185
768948991412,2cyclictest1312558-21kworker/u16:0+events_unbound11:30:115
768946991413,1cyclictest0-21swapper/411:58:474
768946991413,1cyclictest0-21swapper/411:58:474
768946991413,1cyclictest0-21swapper/411:03:364
768946991413,1cyclictest0-21swapper/409:12:004
768946991413,1cyclictest0-21swapper/408:15:144
768946991412,2cyclictest880106-21kworker/u16:3+flush-8:008:30:124
76894699140,1cyclictest0-21swapper/412:06:314
76894699140,1cyclictest0-21swapper/410:48:574
76895499139,3cyclictest6175-21gvfs-afc-volume12:39:567
76895499139,3cyclictest1277-21snmpd11:32:157
76895499139,3cyclictest1277-21snmpd10:18:467
76895499139,3cyclictest1277-21snmpd09:34:157
76895499139,3cyclictest1277-21snmpd08:09:227
76895499139,3cyclictest1277-21snmpd07:22:397
768954991311,1cyclictest0-21swapper/709:49:567
76895499130,12cyclictest778571-21turbostat07:14:567
768952991312,1cyclictest0-21swapper/611:41:296
768952991312,1cyclictest0-21swapper/611:37:516
768952991312,1cyclictest0-21swapper/610:59:146
768952991312,1cyclictest0-21swapper/609:35:126
76895299130,13cyclictest0-21swapper/612:01:116
76895299130,13cyclictest0-21swapper/609:14:246
768948991311,2cyclictest1177182-21kworker/u16:0+events_unbound10:35:475
76894699139,3cyclictest1229961-21cat10:40:094
76894699138,4cyclictest1267017-21cat10:55:104
768946991312,1cyclictest0-21swapper/412:32:504
768946991312,1cyclictest0-21swapper/412:17:524
768946991312,1cyclictest0-21swapper/411:28:124
768946991312,1cyclictest0-21swapper/410:05:364
768946991312,1cyclictest0-21swapper/409:21:274
768946991312,1cyclictest0-21swapper/408:35:254
768946991311,2cyclictest880106-21kworker/u16:3+events_unbound08:25:124
76894699130,1cyclictest0-21swapper/408:52:084
76894699130,13cyclictest0-21swapper/411:39:054
76895499129,2cyclictest1277-21snmpd10:40:407
76895499129,2cyclictest1277-21snmpd10:21:077
76895499129,2cyclictest0-21swapper/712:25:187
76895499128,3cyclictest1277-21snmpd11:36:067
76895499128,3cyclictest1277-21snmpd07:57:547
76895499127,4cyclictest5994-21gmain09:05:107
76895499126,6cyclictest6387-21gmain12:22:547
76895499126,5cyclictest6175-21gvfs-afc-volume11:53:207
768954991210,1cyclictest1339696-21ssh11:24:567
76895499120,2cyclictest985858-21smartctl08:55:257
76895499120,2cyclictest1141147-21ssh10:03:067
76895499120,10cyclictest1277-21snmpd11:15:417
76895299128,3cyclictest1205256-21cat10:30:116
768952991211,1cyclictest0-21swapper/612:21:036
768952991211,1cyclictest0-21swapper/612:09:426
768952991211,1cyclictest0-21swapper/611:45:076
768952991211,1cyclictest0-21swapper/609:47:026
768952991211,1cyclictest0-21swapper/608:37:306
768952991211,1cyclictest0-21swapper/607:23:256
768948991211,1cyclictest0-21swapper/512:16:195
768948991211,1cyclictest0-21swapper/511:16:065
768948991211,1cyclictest0-21swapper/510:15:065
768948991211,1cyclictest0-21swapper/507:55:255
76894899120,1cyclictest0-21swapper/509:20:235
76894699127,4cyclictest1413746-21awk11:54:564
76894699127,4cyclictest1339705-21latency_hist11:24:564
768946991211,1cyclictest0-21swapper/411:31:024
768946991211,1cyclictest0-21swapper/408:57:584
76894699120,1cyclictest0-21swapper/408:10:594
76894699120,1cyclictest0-21swapper/407:41:114
76894699120,0cyclictest0-21swapper/409:48:344
76895499118,2cyclictest1277-21snmpd12:30:027
76895499118,2cyclictest1277-21snmpd11:00:207
76895499118,2cyclictest0-21swapper/710:25:147
76895499117,3cyclictest5988-21gmain11:40:347
76895499117,3cyclictest1277-21snmpd12:00:317
76895499117,3cyclictest1277-21snmpd07:48:457
76895499117,3cyclictest1277-21snmpd07:48:457
76895499117,3cyclictest1277-21snmpd07:42:367
768954991111,0cyclictest0-21swapper/710:46:307
76895499110,10cyclictest1448843-21ssh12:06:297
76895299117,3cyclictest997558-21cat09:05:126
76895299112,8cyclictest0-21swapper/610:35:116
768952991110,1cyclictest0-21swapper/612:33:596
768952991110,1cyclictest0-21swapper/612:18:136
76895299110,2cyclictest898219-21ntpq08:10:196
76895299110,11cyclictest0-21swapper/608:56:546
76895299110,11cyclictest0-21swapper/608:20:296
76895299110,10cyclictest1248947-21tr10:45:176
76895299110,0cyclictest0-21swapper/608:27:256
76895299110,0cyclictest0-21swapper/607:47:416
76895299110,0cyclictest0-21swapper/607:47:416
76895299110,0cyclictest0-21swapper/607:37:176
76894899119,2cyclictest860016-21kworker/u16:0+flush-8:008:29:525
76894899119,2cyclictest752623-21kworker/u16:0+flush-8:007:10:205
768948991110,1cyclictest0-21swapper/511:26:405
768948991110,1cyclictest0-21swapper/510:40:195
768948991110,1cyclictest0-21swapper/510:26:465
768948991110,1cyclictest0-21swapper/508:18:075
768948991110,1cyclictest0-21swapper/508:05:025
76894899110,11cyclictest0-21swapper/509:14:335
76894899110,11cyclictest0-21swapper/509:01:475
76894899110,0cyclictest0-21swapper/508:41:185
76894699118,3cyclictest1090486-21kworker/u16:3+flush-8:010:04:574
768946991110,1cyclictest0-21swapper/412:26:224
768946991110,1cyclictest0-21swapper/411:41:554
768946991110,1cyclictest0-21swapper/409:34:234
768946991110,1cyclictest0-21swapper/408:02:284
76894699110,11cyclictest0-21swapper/408:41:154
76894699110,11cyclictest0-21swapper/407:53:104
76894699110,11cyclictest0-21swapper/407:36:564
76895499106,3cyclictest5994-21gmain07:30:107
76895499106,3cyclictest1277-21snmpd07:39:127
76895499106,3cyclictest1277-21snmpd07:15:297
76895499104,5cyclictest6175-21gvfs-afc-volume09:58:197
76895499104,5cyclictest6175-21gvfs-afc-volume08:50:137
76895499100,2cyclictest0-21swapper/708:15:387
76895499100,1cyclictest1226123-21ssh10:35:277
76895499100,0cyclictest0-21swapper/710:11:347
76895299109,1cyclictest0-21swapper/610:40:196
76895299109,1cyclictest0-21swapper/608:47:366
76895299107,2cyclictest86-21ksoftirqd/612:35:096
76895299106,3cyclictest816530-21grep07:30:156
76895299106,3cyclictest772422-21kthreadcore07:10:146
76895299105,4cyclictest1084795-21kthreadcore09:40:156
76895299100,9cyclictest935653-21cut08:30:176
76895299100,9cyclictest904421-21grep08:15:176
76895299100,9cyclictest1493682-21grep12:25:146
76895299100,9cyclictest1052501-21ldconfig09:25:226
76895299100,3cyclictest851991-21sed07:50:136
76894899109,1cyclictest0-21swapper/510:14:185
76894899109,1cyclictest0-21swapper/507:16:105
76894899108,2cyclictest948171-21kworker/u16:1+events_unbound08:45:125
76894899108,2cyclictest841957-21kworker/u16:1+events_unbound07:50:105
76894899108,2cyclictest801528-21kworker/u16:0+flush-8:007:29:525
76894899108,2cyclictest1312558-21kworker/u16:0+flush-8:012:05:475
7689549996,2cyclictest0-21swapper/708:40:147
7689549994,4cyclictest913806-21grep08:20:157
7689529996,2cyclictest1160927-21kthreadcore10:10:186
7689529995,3cyclictest1415038-21cat11:55:126
7689529995,3cyclictest1415038-21cat11:55:126
7689529993,5cyclictest1143700-21irqcore10:05:146
7689529993,5cyclictest0-21swapper/611:20:096
7689529990,8cyclictest1195000-21cat10:25:146
7689529990,8cyclictest1133247-21cut10:00:146
7689529990,8cyclictest0-21swapper/611:05:106
7689529990,8cyclictest0-21swapper/608:40:126
7689529990,4cyclictest1254219-21cat10:50:096
7689529990,3cyclictest1340310-21cat11:25:086
7689529990,3cyclictest1305382-21kthreadcore11:10:136
7689489998,1cyclictest0-21swapper/511:21:565
7689489998,1cyclictest0-21swapper/509:54:265
7689489998,1cyclictest0-21swapper/509:54:265
7689489998,1cyclictest0-21swapper/507:48:295
7689489998,1cyclictest0-21swapper/507:48:295
7689489995,3cyclictest839971-21sendmail_mailst07:40:225
7689489990,3cyclictest917645-21ntpq08:20:205
7689469998,1cyclictest0-21swapper/410:30:304
7689469998,1cyclictest0-21swapper/409:43:504
7689469998,1cyclictest0-21swapper/407:58:134
7689469995,3cyclictest850488-21latency_hist07:49:574
7689469995,3cyclictest850488-21latency_hist07:49:574
7689469995,3cyclictest1291679-21cat11:05:104
7689469994,4cyclictest986621-21turbostat.cron09:04:514
7689469994,4cyclictest1168249-21awk10:15:124
7689469990,8cyclictest1320226-21kthreadcore11:15:154
7689469990,8cyclictest1129934-21latency_hist09:59:564
7689469990,8cyclictest0-21swapper/410:10:124
7689549983,4cyclictest1228-21tuned-ppd08:10:127
7689529987,1cyclictest0-21swapper/608:52:396
7689529983,4cyclictest833047-21cut07:40:136
7689529980,7cyclictest1317524-21grep11:15:146
7689529980,2cyclictest0-21swapper/607:25:176
7689489987,1cyclictest0-21swapper/508:14:395
7689489986,2cyclictest996768-21kworker/u16:0+events_unbound09:25:045
7689489984,3cyclictest999974-21kthreadcore09:05:155
7689469987,1cyclictest0-21swapper/408:20:174
7689469986,1cyclictest0-21swapper/412:35:154
7689469986,1cyclictest0-21swapper/409:50:094
7689469986,1cyclictest0-21swapper/409:50:094
7689469984,3cyclictest1452071-21if_err_p4p112:10:094
7689469984,3cyclictest1259726-21kthreadcore10:50:174
7689469984,3cyclictest1044619-21hddtemp_smartct09:25:124
7689469983,4cyclictest964480-21cut08:45:174
7689469983,4cyclictest812597-21tune2fs07:30:104
7689469983,4cyclictest1305167-21cut11:10:134
7689469983,4cyclictest1217473-21cut10:35:104
7689489974,2cyclictest792673-21cpuspeed_turbos07:20:095
7689489973,3cyclictest870760-21cat08:00:095
7689489973,3cyclictest1453207-21cut12:10:125
7689469975,1cyclictest0-21swapper/410:20:094
7689469975,1cyclictest0-21swapper/408:05:084
7689469975,1cyclictest0-21swapper/407:10:144
7689489962,3cyclictest1377900-21grep11:40:105
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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