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2026-07-07 - 05:34
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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 Tue Jul 07, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26897572550,0sleep72689758-21rm00:02:527
1995687995448,5cyclictest2266169-21latency_hist21:19:597
199489025218,29sleep70-21swapper/719:07:257
199457225040,7sleep50-21swapper/519:05:465
199462224736,8sleep40-21swapper/419:06:014
199465423625,8sleep60-21swapper/619:06:126
1995687993332,0cyclictest0-21swapper/720:45:277
1995687992928,0cyclictest0-21swapper/722:00:147
1995687992923,5cyclictest2768343-21latency_hist00:34:597
1995687992823,4cyclictest648-21systemd-journal19:49:597
1995684992826,2cyclictest2626681-21kworker/u16:3+events_unbound23:50:126
1995682992826,2cyclictest2704197-21kworker/u16:3+events_unbound00:13:195
1995682992826,2cyclictest2704197-21kworker/u16:3+events_unbound00:13:195
1995687992725,1cyclictest2495595-21ssh22:46:357
1995682992725,2cyclictest2702698-21kworker/u16:2+events_unbound00:08:325
1995677992725,2cyclictest2678284-21kworker/u16:1+events_unbound00:33:074
1995677992725,2cyclictest2626681-21kworker/u16:3+events_unbound23:59:274
1995677992725,2cyclictest2317694-21kworker/u16:3+events_unbound22:25:524
1995687992624,1cyclictest2291698-21ssh21:29:397
1995687992624,1cyclictest0-21swapper/722:23:477
1995684992624,2cyclictest2197332-21kworker/u16:1+events_unbound21:45:136
1995684992622,3cyclictest2743036-21kworker/u16:0+events_unbound00:30:196
1995677992624,2cyclictest2678284-21kworker/u16:1+flush-8:000:24:284
1995677992624,2cyclictest2610801-21kworker/u16:0+events_unbound23:35:364
1995677992624,2cyclictest2482093-21kworker/u16:2+events_unbound23:02:444
1995677992624,2cyclictest2317694-21kworker/u16:3+events_unbound22:54:044
1995677992624,2cyclictest2301809-21kworker/u16:0+events_unbound21:40:394
1995687992522,1cyclictest2666576-21ssh23:55:147
1995684992524,1cyclictest2197332-21kworker/u16:1+flush-8:021:54:596
1995684992523,2cyclictest2113984-21kworker/u16:3+flush-8:020:25:006
1995682992523,2cyclictest2678679-21kworker/u16:4+events_unbound00:15:595
1995682992523,2cyclictest2610801-21kworker/u16:0+flush-8:023:45:045
1995682992523,2cyclictest2011234-21kworker/u16:5+events_unbound21:20:375
1995677992523,2cyclictest2678284-21kworker/u16:1+events_unbound00:03:564
1995687992421,2cyclictest2240460-21diskmemload00:23:507
1995684992421,2cyclictest2559351-21kworker/u16:1+events_unbound23:25:286
1995684992420,3cyclictest2317694-21kworker/u16:3+flush-8:022:25:046
1995682992422,2cyclictest2317694-21kworker/u16:3+flush-8:022:45:085
1995682992422,2cyclictest2279147-21kworker/u16:2+events_unbound21:30:105
1995677992422,2cyclictest2704197-21kworker/u16:3+events_unbound00:12:074
1995677992422,2cyclictest2704197-21kworker/u16:3+events_unbound00:12:074
1995677992422,2cyclictest2678679-21kworker/u16:4+events_unbound00:19:054
1995677992422,2cyclictest2317694-21kworker/u16:3+events_unbound22:55:524
1995687992322,0cyclictest0-21swapper/721:45:277
1995687992322,0cyclictest0-21swapper/721:38:287
1995687992321,1cyclictest2612890-21ssh23:33:397
1995682992321,2cyclictest2626681-21kworker/u16:3+flush-8:023:55:525
1995682992321,2cyclictest2106226-21kworker/u16:0+events_unbound20:13:475
1995682992321,2cyclictest2042442-21kworker/u16:0+events_unbound19:49:515
1995682992321,2cyclictest2011234-21kworker/u16:5+events_unbound20:54:305
1995682992320,2cyclictest1994613-21kworker/u16:1+events_unbound19:10:035
1995677992321,2cyclictest2743036-21kworker/u16:0+events_unbound00:26:174
1995677992321,2cyclictest2702698-21kworker/u16:2+events_unbound00:08:124
1995677992321,2cyclictest2317694-21kworker/u16:3+events_unbound22:46:504
1995677992321,2cyclictest2301809-21kworker/u16:0+events_unbound21:59:544
1995677992321,2cyclictest2197332-21kworker/u16:1+flush-8:021:49:594
1995677992321,2cyclictest2197332-21kworker/u16:1+events_unbound21:20:494
1995677992321,2cyclictest2028165-21kworker/u16:1+events_unbound19:55:214
1995677992321,2cyclictest2028165-21kworker/u16:1+events_unbound19:55:214
1995687992220,1cyclictest2521116-21sh22:56:157
1995687992220,1cyclictest2369035-21ssh21:59:437
1995687992219,2cyclictest2249636-21ssh21:10:247
1995687992219,2cyclictest2187056-21lockdev20:40:267
1995684992219,2cyclictest2678284-21kworker/u16:1+flush-8:000:20:146
1995684992218,3cyclictest2011234-21kworker/u16:5+flush-8:021:10:176
1995682992220,2cyclictest2704197-21kworker/u16:3+flush-8:000:24:535
1995682992220,2cyclictest2678284-21kworker/u16:1+flush-8:000:32:145
1995682992220,2cyclictest2678284-21kworker/u16:1+flush-8:000:01:005
1995682992220,2cyclictest2610801-21kworker/u16:0+flush-8:023:44:595
1995682992220,2cyclictest2317694-21kworker/u16:3+events_unbound22:20:395
1995682992220,2cyclictest2279147-21kworker/u16:2+flush-8:021:39:545
1995682992220,2cyclictest2028165-21kworker/u16:1+events_unbound20:05:005
1995682992220,2cyclictest2028165-21kworker/u16:1+events_unbound20:04:325
1995682992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:44:245
1995682992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:17:525
1995682992220,2cyclictest2011234-21kworker/u16:5+events_unbound19:42:515
1995682992219,2cyclictest2317694-21kworker/u16:3+events_unbound22:50:005
1995677992220,2cyclictest2743036-21kworker/u16:0+flush-8:000:37:164
1995677992220,2cyclictest2197332-21kworker/u16:1+events_unbound20:59:554
1995677992220,2cyclictest2113984-21kworker/u16:3+events_unbound20:37:284
1995677992220,2cyclictest2053229-21kworker/u16:2+events_unbound19:48:524
1995677992220,2cyclictest2028165-21kworker/u16:1+events_unbound19:37:404
1995677992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:43:304
1995677992220,2cyclictest2011234-21kworker/u16:5+events_unbound20:32:564
1995677992220,2cyclictest2002337-21kworker/u16:4+events_unbound19:33:204
1995677992219,2cyclictest2559351-21kworker/u16:1+flush-8:023:25:044
1995677992219,2cyclictest2279147-21kworker/u16:2+events_unbound21:35:134
1995687992120,0cyclictest0-21swapper/722:44:387
1995687992120,0cyclictest0-21swapper/722:12:197
1995684992118,3cyclictest2317694-21kworker/u16:3+flush-8:022:30:246
1995684992117,3cyclictest2279147-21kworker/u16:2+flush-8:021:25:246
1995682992119,2cyclictest2768383-21kworker/u16:2+flush-8:000:35:045
1995682992119,2cyclictest2678284-21kworker/u16:1+events_unbound00:26:485
1995682992119,2cyclictest2317694-21kworker/u16:3+events_unbound22:26:005
1995682992119,2cyclictest2230039-21kworker/u16:4+events_unbound21:25:465
1995682992119,2cyclictest2197332-21kworker/u16:1+events_unbound20:56:395
1995682992119,2cyclictest2113984-21kworker/u16:3+events_unbound21:07:515
1995682992119,2cyclictest2053229-21kworker/u16:2+events_unbound20:26:435
1995682992119,2cyclictest2011234-21kworker/u16:5+events_unbound19:58:525
1995682992119,2cyclictest2011234-21kworker/u16:5+events_unbound19:58:525
1995682992119,2cyclictest2002337-21kworker/u16:4+events_unbound19:34:285
1995682992118,3cyclictest2523632-21kworker/u16:0+flush-8:023:20:325
1995677992119,2cyclictest2343576-21kworker/u16:2+events_unbound22:24:454
1995677992119,2cyclictest2301809-21kworker/u16:0+flush-8:022:30:454
1995677992119,2cyclictest2042442-21kworker/u16:0+events_unbound19:41:154
1995677992119,2cyclictest2028165-21kworker/u16:1+events_unbound20:04:244
1995677992119,2cyclictest2011234-21kworker/u16:5+events_unbound20:16:184
1995677992119,2cyclictest2011234-21kworker/u16:5+events_unbound19:26:124
1995677992119,2cyclictest1994613-21kworker/u16:1+events_unbound19:13:034
1995677992118,2cyclictest2197332-21kworker/u16:1+events_unbound21:00:084
1995687992019,0cyclictest0-21swapper/723:53:357
1995687992019,0cyclictest0-21swapper/723:44:027
1995687992019,0cyclictest0-21swapper/723:29:387
1995687992019,0cyclictest0-21swapper/722:31:387
1995687992019,0cyclictest0-21swapper/722:26:437
1995687992018,1cyclictest0-21swapper/700:11:557
1995687992018,1cyclictest0-21swapper/700:11:557
1995684992017,2cyclictest2011234-21kworker/u16:5+flush-8:020:39:596
1995682992018,2cyclictest2523632-21kworker/u16:0+events_unbound23:10:235
1995682992018,2cyclictest2197332-21kworker/u16:1+flush-8:021:50:415
1995682992018,2cyclictest2113984-21kworker/u16:3+events_unbound20:23:025
1995682992018,2cyclictest2028165-21kworker/u16:1+events_unbound19:39:395
1995682992018,2cyclictest2011234-21kworker/u16:5+events_unbound20:45:035
1995682992018,2cyclictest2011234-21kworker/u16:5+events_unbound20:39:195
1995682992018,2cyclictest2011234-21kworker/u16:5+events_unbound19:28:275
1995682992018,2cyclictest1964454-21kworker/u16:0+events_unbound19:24:445
1995682992018,2cyclictest1964454-21kworker/u16:0+events_unbound19:16:125
1995677992018,2cyclictest2106226-21kworker/u16:0+events_unbound20:22:314
1995677992018,2cyclictest2028165-21kworker/u16:1+events_unbound20:09:434
1995677992018,2cyclictest2011234-21kworker/u16:5+flush-8:021:10:464
1995687991918,0cyclictest0-21swapper/723:24:147
1995687991918,0cyclictest0-21swapper/723:15:227
1995687991918,0cyclictest0-21swapper/722:18:467
1995687991918,0cyclictest0-21swapper/720:30:227
1995687991917,1cyclictest0-21swapper/722:06:067
1995687991917,1cyclictest0-21swapper/722:06:067
1995684991916,3cyclictest2011234-21kworker/u16:5+flush-8:019:40:156
1995682991917,2cyclictest2343576-21kworker/u16:2+events_unbound22:00:005
1995682991917,2cyclictest2197332-21kworker/u16:1+events_unbound21:00:595
1995682991917,2cyclictest2011234-21kworker/u16:5+events_unbound20:31:075
1995677991917,2cyclictest2639685-21kworker/u16:2+events_unbound23:50:474
1995677991917,2cyclictest2482093-21kworker/u16:2+events_unbound23:20:104
1995677991917,2cyclictest2317694-21kworker/u16:3+events_unbound22:15:364
1995677991917,2cyclictest2106226-21kworker/u16:0+events_unbound20:12:274
1995677991917,2cyclictest2042442-21kworker/u16:0+flush-8:019:50:504
1995677991917,2cyclictest2011234-21kworker/u16:5+events_unbound20:47:014
1995677991917,2cyclictest1996923-21kworker/u16:2+events_unbound19:22:394
1995677991917,2cyclictest1964454-21kworker/u16:0+events_unbound19:18:314
1995687991817,0cyclictest0-21swapper/721:52:277
1995687991817,0cyclictest0-21swapper/721:43:227
1995687991816,1cyclictest2625260-21ssh23:37:517
1995687991816,1cyclictest0-21swapper/723:06:217
1995684991816,2cyclictest2610801-21kworker/u16:0+flush-8:023:59:596
1995682991816,2cyclictest2497994-21kworker/u16:1+events_unbound22:55:385
1995682991816,2cyclictest2482093-21kworker/u16:2+flush-8:023:00:445
1995682991816,2cyclictest2408022-21kworker/u16:1+flush-8:022:40:055
1995682991816,2cyclictest2317694-21kworker/u16:3+flush-8:022:15:355
1995682991816,2cyclictest2042442-21kworker/u16:0+events_unbound19:52:025
1995677991816,2cyclictest2197332-21kworker/u16:1+events_unbound21:50:434
1995677991816,2cyclictest2113984-21kworker/u16:3+events_unbound21:06:594
1995677991816,2cyclictest2011234-21kworker/u16:5+events_unbound20:54:204
1995677991815,2cyclictest2559351-21kworker/u16:1+flush-8:023:40:094
1995687991716,0cyclictest0-21swapper/722:54:267
1995687991716,0cyclictest0-21swapper/720:51:407
1995687991716,0cyclictest0-21swapper/700:08:017
1995687991715,1cyclictest2770827-21ssh00:38:107
1995684991715,2cyclictest2301809-21kworker/u16:0+events_unbound21:55:296
1995682991715,2cyclictest2230039-21kworker/u16:4+events_unbound21:19:585
1995677991715,2cyclictest2279147-21kworker/u16:2+events_unbound21:30:374
1995677991715,2cyclictest2053229-21kworker/u16:2+events_unbound20:25:354
1995687991615,0cyclictest0-21swapper/723:03:107
1995687991615,0cyclictest0-21swapper/722:36:117
1995687991615,0cyclictest0-21swapper/721:34:127
1995687991615,0cyclictest0-21swapper/721:05:297
1995687991615,0cyclictest0-21swapper/719:15:237
1995687991615,0cyclictest0-21swapper/700:29:157
1995687991614,1cyclictest0-21swapper/723:11:517
1995684991614,2cyclictest2523632-21kworker/u16:0+events_unbound23:20:296
1995684991614,2cyclictest2028165-21kworker/u16:1+flush-8:019:59:596
1995684991614,2cyclictest2028165-21kworker/u16:1+flush-8:019:59:596
199568499160,2cyclictest2066695-21grep19:45:156
199568499160,15cyclictest2034036-21kthreadcore19:30:166
1995682991614,2cyclictest2301809-21kworker/u16:0+flush-8:021:55:515
1995682991614,2cyclictest2197332-21kworker/u16:1+events_unbound21:40:415
1995677991614,2cyclictest2610801-21kworker/u16:0+flush-8:023:45:224
1995677991614,2cyclictest2230039-21kworker/u16:4+events_unbound21:16:354
1995677991614,2cyclictest2197332-21kworker/u16:1+events_unbound21:26:314
1995687991514,0cyclictest0-21swapper/719:10:017
199568799150,14cyclictest0-21swapper/719:55:267
199568799150,14cyclictest0-21swapper/719:55:267
1995684991513,2cyclictest2317694-21kworker/u16:3+flush-8:022:05:156
1995684991513,2cyclictest2317694-21kworker/u16:3+flush-8:022:05:156
199568499150,1cyclictest0-21swapper/623:00:356
1995682991513,2cyclictest2343576-21kworker/u16:2+events_unbound22:10:125
1995682991513,2cyclictest2301809-21kworker/u16:0+flush-8:022:05:275
1995682991513,2cyclictest2301809-21kworker/u16:0+flush-8:022:05:275
1995677991513,2cyclictest2317694-21kworker/u16:3+events_unbound23:09:584
1995677991512,2cyclictest2317694-21kworker/u16:3+flush-8:022:00:054
199568799149,4cyclictest1274-21snmpd00:15:517
1995687991413,0cyclictest0-21swapper/723:45:427
1995684991413,1cyclictest0-21swapper/623:38:356
1995684991413,1cyclictest0-21swapper/622:41:026
1995684991413,1cyclictest0-21swapper/621:15:166
1995684991412,2cyclictest2343576-21kworker/u16:2+events_unbound22:20:226
1995684991412,2cyclictest2011234-21kworker/u16:5+events_unbound19:50:286
199568499140,1cyclictest0-21swapper/620:28:276
199568499140,1cyclictest0-21swapper/619:37:036
199568499140,1cyclictest0-21swapper/600:25:146
1995682991413,1cyclictest0-21swapper/523:39:245
1995677991412,2cyclictest2610801-21kworker/u16:0+events_unbound23:30:574
1995677991412,2cyclictest2408022-21kworker/u16:1+events_unbound22:39:114
1995677991412,2cyclictest2317694-21kworker/u16:3+flush-8:023:15:044
1995677991412,2cyclictest2317694-21kworker/u16:3+events_unbound23:12:464
1995677991412,2cyclictest2301809-21kworker/u16:0+events_unbound22:05:384
1995677991412,2cyclictest2301809-21kworker/u16:0+events_unbound22:05:384
1995687991312,0cyclictest0-21swapper/720:13:087
1995687991311,1cyclictest0-21swapper/721:22:317
1995687991310,2cyclictest0-21swapper/719:59:597
1995684991312,1cyclictest0-21swapper/620:19:566
1995684991311,2cyclictest2317694-21kworker/u16:3+flush-8:022:55:296
1995684991311,2cyclictest1983672-21kworker/u16:3+events_unbound19:15:156
199568499130,1cyclictest0-21swapper/620:33:106
199568499130,1cyclictest0-21swapper/620:10:006
199568499130,1cyclictest0-21swapper/619:13:056
199568499130,13cyclictest0-21swapper/622:50:206
1995677991311,2cyclictest2301809-21kworker/u16:0+events_unbound22:13:434
199568799129,2cyclictest1274-21snmpd19:22:497
199568799128,3cyclictest1274-21snmpd21:04:497
199568799128,3cyclictest1274-21snmpd20:15:397
199568799128,3cyclictest1274-21snmpd20:08:417
199568799128,3cyclictest1274-21snmpd19:42:477
199568799126,5cyclictest6064-21gmain20:56:467
1995687991212,0cyclictest0-21swapper/720:38:097
199568799120,11cyclictest1274-21snmpd19:50:357
1995684991211,1cyclictest0-21swapper/620:00:326
199568499120,0cyclictest0-21swapper/620:05:456
1995682991211,1cyclictest0-21swapper/522:34:175
1995682991210,2cyclictest2523632-21kworker/u16:0+flush-8:023:15:585
1995682991210,2cyclictest2523632-21kworker/u16:0+flush-8:023:05:045
1995682991210,2cyclictest2197332-21kworker/u16:1+events_unbound21:49:275
199568799119,1cyclictest0-21swapper/720:20:217
199568799118,2cyclictest6064-21gmain20:26:587
199568799117,3cyclictest1053-21runrttasks19:25:147
199568499117,3cyclictest2293251-21cat21:30:166
199568499115,6cyclictest2301809-21kworker/u16:0+events_unbound22:38:386
199568499114,6cyclictest0-21swapper/623:05:176
199568499113,7cyclictest0-21swapper/600:15:166
199568499110,7cyclictest2550161-21cstates23:10:116
199568499110,0cyclictest0-21swapper/619:29:486
199568299119,2cyclictest2626681-21kworker/u16:3+flush-8:023:54:545
199568299118,3cyclictest2301809-21kworker/u16:0+events_unbound22:36:565
199568799109,0cyclictest0-21swapper/719:30:187
199568799105,4cyclictest2052858-21/usr/sbin/munin19:39:597
199568499109,1cyclictest0-21swapper/620:40:166
199568499109,1cyclictest0-21swapper/619:24:266
199568499108,2cyclictest86-21ksoftirqd/623:45:096
199568499108,2cyclictest2743036-21kworker/u16:0+events_unbound00:37:356
199568499106,3cyclictest2402752-21kthreadcore22:10:176
199568499104,5cyclictest0-21swapper/600:05:166
199568499100,9cyclictest2627440-21expr23:40:106
199568499100,4cyclictest2602416-21sed23:30:156
199568499100,3cyclictest2711005-21kthreadcore00:10:196
199568499100,3cyclictest2711005-21kthreadcore00:10:196
199568499100,2cyclictest2189819-21irqcore20:45:166
199568299108,2cyclictest2559351-21kworker/u16:1+events_unbound23:31:515
199568299108,2cyclictest2559351-21kworker/u16:1+events_unbound23:28:595
199568299108,2cyclictest2011234-21kworker/u16:5+events_unbound21:12:195
199567799108,2cyclictest2317694-21kworker/u16:3+events_unbound22:41:574
19956849997,2cyclictest86-21ksoftirqd/621:41:096
19956849996,2cyclictest2223074-21cat21:00:186
19956849995,3cyclictest2235278-21kthreadcore21:05:186
19956849992,6cyclictest0-21swapper/621:35:196
19956849990,8cyclictest2682631-21kthreadcore00:00:166
19956849990,8cyclictest2571390-21ntpq23:15:236
19956849990,8cyclictest2485957-21expr22:45:116
19956849990,8cyclictest2411081-21kthreadcore22:15:176
19956849990,8cyclictest2377239-21cut22:00:206
19956849990,8cyclictest2267705-21irqcore21:20:176
19956849990,2cyclictest2200907-21cat20:50:176
19956849985,2cyclictest2210143-21df20:55:136
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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