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2026-08-19 - 10:24
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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 19, 2026 00:43:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
187440225924,30sleep70-21swapper/719:05:447
186526225847,7sleep40-21swapper/419:02:444
632489450,38rtkit-daemon0-21swapper/619:04:566
1874837994236,5cyclictest1985106-21latency_hist20:02:407
1874821994138,2cyclictest2505249-21kworker/u16:0+flush-8:023:57:414
1874821993836,2cyclictest1884239-21kworker/u16:0+flush-8:020:37:404
1874825993735,2cyclictest2147151-21kworker/u16:1+events_unbound21:41:065
1874825993735,2cyclictest1874389-21kworker/u16:2+events_unbound19:08:145
1874821993736,1cyclictest1864597-21kworker/u16:1+events_unbound19:07:554
1874825993634,2cyclictest2265245-21kworker/u16:1+events_unbound22:15:025
1874821993633,2cyclictest2543527-21kworker/u16:0+events_unbound00:17:424
1874825993533,2cyclictest2324757-21kworker/u16:0+events_unbound22:35:395
1874821993432,2cyclictest2265245-21kworker/u16:1+events_unbound22:58:584
1874821993432,2cyclictest2147151-21kworker/u16:1+events_unbound21:33:464
1874821993432,2cyclictest2147151-21kworker/u16:1+events_unbound21:33:464
1874821993432,2cyclictest2091665-21kworker/u16:2+flush-8:022:28:104
1874837993327,5cyclictest2243084-21latency_hist22:02:417
1874825993331,2cyclictest2543527-21kworker/u16:0+events_unbound00:18:115
1874825993331,2cyclictest2398701-21kworker/u16:3+events_unbound23:17:095
1874825993328,2cyclictest2147151-21kworker/u16:1+flush-8:021:52:405
22052642320,1chrt2205262-21ssh21:44:087
1874825993230,2cyclictest2519509-21kworker/u16:2+events_unbound23:59:415
1874825993230,2cyclictest2485002-21kworker/u16:3+events_unbound23:51:075
1874825993230,2cyclictest2423133-21kworker/u16:2+events_unbound23:43:475
1874825993230,2cyclictest2219124-21kworker/u16:4+flush-8:022:07:065
1874825993230,2cyclictest1884239-21kworker/u16:0+events_unbound19:33:055
1874825993229,2cyclictest2289732-21kworker/u16:0+events_unbound22:22:415
1874821993229,2cyclictest2528501-21kworker/u16:5+events_unbound00:02:414
187425523222,7sleep50-21swapper/519:03:415
1874825993129,2cyclictest2543527-21kworker/u16:0+events_unbound00:17:055
1874825993129,2cyclictest2543527-21kworker/u16:0+events_unbound00:17:055
1874825993129,2cyclictest2360807-21kworker/u16:3+events_unbound22:54:385
1874825993129,2cyclictest2360807-21kworker/u16:3+events_unbound22:54:385
1874825993129,2cyclictest2265245-21kworker/u16:1+events_unbound23:00:225
1874821993129,2cyclictest2485002-21kworker/u16:3+events_unbound23:55:414
1874821993129,2cyclictest2302247-21kworker/u16:3+events_unbound22:38:084
1874821993129,2cyclictest2219124-21kworker/u16:4+events_unbound22:08:124
1874821993129,2cyclictest2091665-21kworker/u16:2+events_unbound21:27:354
1874825993028,2cyclictest2528501-21kworker/u16:5+events_unbound00:11:175
1874825993028,2cyclictest2360807-21kworker/u16:3+events_unbound22:48:545
1874825993028,2cyclictest2324757-21kworker/u16:0+flush-8:022:40:025
1874825993028,2cyclictest2133103-21kworker/u16:0+events_unbound21:34:195
1874825993028,2cyclictest2133103-21kworker/u16:0+events_unbound21:34:195
1874825993028,2cyclictest2101452-21kworker/u16:3+events_unbound21:56:055
1874825993028,2cyclictest2091665-21kworker/u16:2+events_unbound22:18:395
1874825993028,2cyclictest2091665-21kworker/u16:2+events_unbound21:20:545
1874821993028,2cyclictest2485002-21kworker/u16:3+events_unbound23:49:274
1874821993028,2cyclictest2265245-21kworker/u16:1+flush-8:023:20:494
1874821993028,2cyclictest2091665-21kworker/u16:2+events_unbound21:09:514
1874821993028,2cyclictest2004446-21kworker/u16:2+events_unbound20:28:514
1874837992923,5cyclictest648-21systemd-journal19:12:407
1874825992927,2cyclictest2398701-21kworker/u16:3+flush-8:023:28:205
1874825992927,2cyclictest2373606-21kworker/u16:0+flush-8:023:05:385
1874821992927,2cyclictest2580481-21kworker/u16:1+events_unbound00:33:144
1874821992927,2cyclictest2423133-21kworker/u16:2+events_unbound23:40:504
1874821992927,2cyclictest2423133-21kworker/u16:2+events_unbound23:40:504
1874821992927,2cyclictest2289732-21kworker/u16:0+events_unbound22:22:434
1874825992826,2cyclictest2580481-21kworker/u16:1+events_unbound00:28:525
1874825992826,2cyclictest2519509-21kworker/u16:2+events_unbound00:07:325
1874825992826,2cyclictest2485002-21kworker/u16:3+events_unbound00:23:325
1874825992826,2cyclictest2423133-21kworker/u16:2+events_unbound23:19:265
1874825992826,2cyclictest2324757-21kworker/u16:0+events_unbound22:44:155
1874825992826,2cyclictest2081939-21kworker/u16:1+flush-8:021:10:265
1874825992826,2cyclictest1884239-21kworker/u16:0+events_unbound20:52:305
1874821992826,2cyclictest2543527-21kworker/u16:0+flush-8:000:17:394
1874821992826,2cyclictest2543527-21kworker/u16:0+flush-8:000:17:394
1874837992722,4cyclictest2291047-21latency_hist22:22:407
1874825992725,2cyclictest2265245-21kworker/u16:1+events_unbound23:53:345
1874825992725,2cyclictest2219124-21kworker/u16:4+events_unbound22:01:475
1874821992725,2cyclictest2543527-21kworker/u16:0+flush-8:000:12:224
1874821992725,2cyclictest2398701-21kworker/u16:3+events_unbound23:11:504
1874821992725,2cyclictest2373606-21kworker/u16:0+events_unbound23:12:434
1874821992725,2cyclictest2265245-21kworker/u16:1+events_unbound22:14:504
1874825992624,2cyclictest2603205-21kworker/u16:3+events_unbound00:33:415
1874825992624,2cyclictest2423133-21kworker/u16:2+events_unbound23:41:565
1874825992624,2cyclictest2423133-21kworker/u16:2+events_unbound23:41:565
1874825992624,2cyclictest2265245-21kworker/u16:1+events_unbound22:30:155
1874825992624,2cyclictest2219124-21kworker/u16:4+flush-8:022:08:065
1874825992624,2cyclictest2101452-21kworker/u16:3+events_unbound21:46:185
1874825992624,2cyclictest2101452-21kworker/u16:3+events_unbound21:28:375
1874825992624,2cyclictest2004446-21kworker/u16:2+events_unbound20:42:265
1874825992624,2cyclictest1926682-21kworker/u16:1+events_unbound19:56:115
187483799250,23cyclictest2123033-21latency_hist21:12:407
1874825992523,2cyclictest2423133-21kworker/u16:2+flush-8:023:24:355
1874825992523,2cyclictest2398701-21kworker/u16:3+events_unbound23:10:405
1874825992523,2cyclictest2091665-21kworker/u16:2+flush-8:021:23:455
1874825992523,2cyclictest1926682-21kworker/u16:1+events_unbound20:18:435
1874825992523,2cyclictest1884239-21kworker/u16:0+flush-8:019:23:265
1874825992523,2cyclictest1884239-21kworker/u16:0+events_unbound20:56:265
1874825992522,2cyclictest2081939-21kworker/u16:1+events_unbound20:57:505
1874825992522,2cyclictest2081939-21kworker/u16:1+events_unbound20:57:505
1874821992523,2cyclictest2580481-21kworker/u16:1+events_unbound00:29:494
1874821992523,2cyclictest2580481-21kworker/u16:1+events_unbound00:24:424
1874821992523,2cyclictest2485002-21kworker/u16:3+events_unbound23:45:064
1874821992523,2cyclictest2265245-21kworker/u16:1+events_unbound23:07:264
1874821992523,2cyclictest2101452-21kworker/u16:3+events_unbound21:39:424
1874821992523,2cyclictest2101452-21kworker/u16:3+events_unbound21:32:344
1874825992422,2cyclictest2423133-21kworker/u16:2+events_unbound23:34:405
1874825992422,2cyclictest2091665-21kworker/u16:2+flush-8:021:13:315
1874825992422,2cyclictest2091665-21kworker/u16:2+events_unbound21:04:275
1874825992422,2cyclictest1985015-21kworker/u16:3+events_unbound20:10:315
1874821992422,2cyclictest2423133-21kworker/u16:2+events_unbound23:31:034
1874821992422,2cyclictest2337007-21kworker/u16:2+events_unbound22:55:494
1874821992422,2cyclictest2337007-21kworker/u16:2+events_unbound22:55:494
1874821992422,2cyclictest2324757-21kworker/u16:0+flush-8:022:43:584
1874821992422,2cyclictest2101452-21kworker/u16:3+events_unbound21:18:314
1874821992421,2cyclictest2265245-21kworker/u16:1+events_unbound22:47:504
1874825992321,2cyclictest1906829-21kworker/u16:3+events_unbound19:18:305
1874825992321,2cyclictest1884239-21kworker/u16:0+events_unbound20:00:275
1874821992321,2cyclictest2423133-21kworker/u16:2+events_unbound23:35:274
1874821992321,2cyclictest2289732-21kworker/u16:0+events_unbound22:20:504
1874821992321,2cyclictest2091665-21kworker/u16:2+flush-8:021:52:504
1874821992320,2cyclictest2101452-21kworker/u16:3+flush-8:021:42:424
22297722220,1chrt2229770-21ssh21:55:067
1874825992220,2cyclictest2004446-21kworker/u16:2+flush-8:020:22:415
1874825992220,2cyclictest1946737-21kworker/u16:2+events_unbound19:44:315
1874825992220,2cyclictest1926682-21kworker/u16:1+events_unbound20:14:555
1874825992220,2cyclictest1926682-21kworker/u16:1+events_unbound20:07:235
1874825992220,2cyclictest1884239-21kworker/u16:0+events_unbound19:48:345
1874825992220,2cyclictest1864597-21kworker/u16:1+events_unbound19:13:585
1874825992219,3cyclictest1884239-21kworker/u16:0+flush-8:020:33:115
187483299210,3cyclictest2045558-21cut20:32:596
1874821992120,1cyclictest2091665-21kworker/u16:2+events_unbound21:59:324
1874821992119,2cyclictest2423133-21kworker/u16:2+events_unbound23:25:024
1874837992018,1cyclictest0-21swapper/720:58:067
1874837992018,1cyclictest0-21swapper/720:58:067
1874825991917,2cyclictest1884239-21kworker/u16:0+events_unbound19:40:075
1874825991916,2cyclictest1907584-21kworker/u16:4+flush-8:019:27:465
1874821991917,2cyclictest2324757-21kworker/u16:0+events_unbound22:33:184
1874821991917,2cyclictest2147151-21kworker/u16:1+events_unbound21:50:114
1874837991816,1cyclictest2315063-21basename22:32:407
1874825991816,2cyclictest2004446-21kworker/u16:2+events_unbound20:44:355
1874821991816,2cyclictest2091665-21kworker/u16:2+events_unbound21:16:424
187483799178,8cyclictest6050-21gmain19:18:067
1874837991714,2cyclictest2543167-21awk00:07:397
187483799170,1cyclictest0-21swapper/719:28:057
187483299170,4cyclictest2160286-21tune2fs21:27:556
187483299170,17cyclictest0-21swapper/623:39:116
187483299170,17cyclictest0-21swapper/623:39:116
187483299170,14cyclictest0-21swapper/622:57:156
187483299170,14cyclictest0-21swapper/622:57:156
1874825991715,2cyclictest2004446-21kworker/u16:2+events_unbound20:30:155
1874837991612,3cyclictest1302-21snmpd19:48:167
1874837991610,5cyclictest648-21systemd-journal20:32:417
1874832991614,2cyclictest0-21swapper/600:22:236
1874832991610,5cyclictest1884239-21kworker/u16:0+flush-8:019:22:506
1874821991614,2cyclictest2081939-21kworker/u16:1+flush-8:020:58:054
1874821991614,2cyclictest2081939-21kworker/u16:1+flush-8:020:58:054
1874837991511,3cyclictest648-21systemd-journal22:52:347
187483799150,1cyclictest0-21swapper/720:13:077
187483799150,13cyclictest1936659-21latency_hist19:37:417
1874832991512,3cyclictest0-21swapper/621:19:206
187483299150,15cyclictest0-21swapper/621:43:476
187483299150,0cyclictest0-21swapper/600:28:236
1874821991513,2cyclictest2081939-21kworker/u16:1+flush-8:020:52:564
1874821991513,2cyclictest1926682-21kworker/u16:1+flush-8:020:42:584
1874821991513,2cyclictest1884239-21kworker/u16:0+flush-8:019:33:084
1874821991513,2cyclictest1884239-21kworker/u16:0+flush-8:019:22:554
1874821991512,2cyclictest1926682-21kworker/u16:1+events_unbound20:22:534
187483799149,4cyclictest2423094-21latency_hist23:17:407
187483799149,3cyclictest1302-21snmpd20:04:197
1874837991412,1cyclictest2111081-21diskmemload23:18:167
1874837991412,1cyclictest0-21swapper/722:23:067
1874837991411,2cyclictest125-21kswapd023:48:057
187483799140,1cyclictest0-21swapper/721:33:097
187483799140,1cyclictest0-21swapper/721:33:097
187483799140,13cyclictest0-21swapper/719:43:077
1874832991413,1cyclictest0-21swapper/623:33:406
1874832991413,1cyclictest0-21swapper/623:13:396
1874832991413,1cyclictest0-21swapper/622:06:576
1874832991413,1cyclictest0-21swapper/621:48:126
1874832991413,1cyclictest0-21swapper/621:39:226
187483299140,4cyclictest2449662-21grep23:27:586
187483299140,1cyclictest0-21swapper/623:07:116
187483299140,1cyclictest0-21swapper/622:19:446
187483299140,14cyclictest86-21ksoftirqd/621:08:476
187483299140,14cyclictest0-21swapper/621:34:296
187483299140,14cyclictest0-21swapper/621:34:296
187483299140,14cyclictest0-21swapper/600:35:576
187483299140,13cyclictest2435548-21/usr/sbin/munin23:23:036
187483299140,13cyclictest2088588-21kthreadcore20:53:016
1874821991412,2cyclictest2091665-21kworker/u16:2+flush-8:022:05:344
1874821991412,2cyclictest1884239-21kworker/u16:0+events_unbound20:17:564
187483799139,3cyclictest1302-21snmpd23:58:147
187483799139,3cyclictest1302-21snmpd23:32:437
187483799139,3cyclictest1302-21snmpd21:19:277
187483799139,3cyclictest1302-21snmpd21:16:187
187483799139,3cyclictest1302-21snmpd20:09:527
187483799139,3cyclictest1302-21snmpd19:24:007
187483799138,4cyclictest1302-21snmpd19:38:337
1874837991312,0cyclictest0-21swapper/721:38:007
1874837991311,1cyclictest2447434-21ssh23:27:447
1874837991310,2cyclictest1302-21snmpd20:52:567
1874837991310,2cyclictest1302-21snmpd00:18:057
187483799130,1cyclictest0-21swapper/722:53:057
187483799130,1cyclictest0-21swapper/722:53:057
1874832991312,1cyclictest0-21swapper/623:53:516
1874832991312,1cyclictest0-21swapper/623:46:176
1874832991312,1cyclictest0-21swapper/619:48:056
1874832991311,2cyclictest0-21swapper/620:49:516
187483299131,11cyclictest2039372-21kthreadcore20:28:006
187483299130,13cyclictest0-21swapper/622:57:436
187483299130,13cyclictest0-21swapper/622:43:236
187483299130,13cyclictest0-21swapper/600:01:546
187483299130,12cyclictest2351801-21cpuspeed_turbos22:47:536
187483299130,12cyclictest2315526-21/usr/sbin/munin22:33:066
187483299130,12cyclictest2150857-21kthreadcore21:22:596
187483299130,12cyclictest0-21swapper/620:07:466
187483299130,0cyclictest0-21swapper/621:13:496
1874821991311,2cyclictest1985015-21kworker/u16:3+events_unbound20:09:504
187483799129,2cyclictest1302-21snmpd22:41:207
187483799129,2cyclictest1302-21snmpd20:32:117
187483799129,2cyclictest1302-21snmpd19:16:487
187483799129,2cyclictest1302-21snmpd00:28:087
187483799129,2cyclictest0-21swapper/720:37:417
187483799128,3cyclictest5965-21gmain21:28:057
187483799128,3cyclictest1302-21snmpd23:06:097
187483799128,3cyclictest1302-21snmpd20:24:597
187483799128,3cyclictest1302-21snmpd19:53:227
187483799126,5cyclictest6233-21gvfs-afc-volume23:55:087
187483799126,5cyclictest6233-21gvfs-afc-volume22:32:517
187483799126,5cyclictest6233-21gvfs-afc-volume21:48:537
187483799126,5cyclictest6233-21gvfs-afc-volume20:42:527
187483799120,2cyclictest1302-21snmpd00:35:397
187483799120,11cyclictest1302-21snmpd22:06:107
187483299128,3cyclictest1899047-21tune2fs19:17:566
187483299127,4cyclictest2270702-21grep22:12:596
187483299126,5cyclictest2291537-21/usr/sbin/munin22:23:086
187483299123,4cyclictest2499382-21grep23:47:586
187483299123,4cyclictest1928091-21tune2fs19:32:556
1874832991211,1cyclictest0-21swapper/620:43:146
1874832991211,1cyclictest0-21swapper/600:10:536
187483299120,8cyclictest2235428-21kthreadcore21:58:006
187483299120,3cyclictest2005327-21expr20:12:546
187483299120,2cyclictest2408188-21ntp_states23:08:066
187483299120,1cyclictest1921731-21kthreadcore19:28:006
1874821991211,1cyclictest0-21swapper/419:51:514
1874821991211,1cyclictest0-21swapper/419:45:334
187482199120,12cyclictest0-21swapper/419:21:544
187483799119,1cyclictest2384867-21ssh22:58:147
187483799118,2cyclictest1302-21snmpd23:45:077
187483799118,2cyclictest1302-21snmpd23:40:317
187483799118,2cyclictest1302-21snmpd23:40:317
187483799118,2cyclictest1302-21snmpd22:14:057
187483799118,2cyclictest1302-21snmpd21:06:547
187483799118,2cyclictest0-21swapper/723:22:577
187483799117,3cyclictest1302-21snmpd23:10:517
187483799117,3cyclictest1302-21snmpd20:18:557
187483799117,3cyclictest1302-21snmpd00:12:087
187483799116,4cyclictest2266785-21sh22:12:107
187483799114,6cyclictest6233-21gvfs-afc-volume20:48:057
187483799110,2cyclictest2589315-21ssh00:24:027
187483799110,10cyclictest1302-21snmpd22:45:147
187483299118,2cyclictest2017249-21grep20:17:586
187483299117,3cyclictest86-21ksoftirqd/622:28:036
187483299117,3cyclictest0-21swapper/619:57:536
187483299116,4cyclictest2531864-21tr00:02:566
187483299115,2cyclictest86-21ksoftirqd/623:21:336
187483299115,1cyclictest0-21swapper/619:43:016
187483299114,2cyclictest1938480-21kthreadcore19:38:006
187483299112,4cyclictest2226715-21kthreadcore21:53:026
1874832991110,1cyclictest0-21swapper/620:26:506
1874832991110,1cyclictest0-21swapper/619:15:166
1874832991110,1cyclictest0-21swapper/600:22:526
1874832991110,1cyclictest0-21swapper/600:13:526
1874832991110,1cyclictest0-21swapper/600:13:526
187483299110,2cyclictest2265245-21kworker/u16:1+rpciod22:41:356
187483299110,1cyclictest0-21swapper/620:03:056
187482199119,2cyclictest2004446-21kworker/u16:2+flush-8:020:38:124
187482199119,2cyclictest2004446-21kworker/u16:2+events_unbound20:48:514
187482199119,2cyclictest1926682-21kworker/u16:1+events_unbound20:15:164
1874821991110,1cyclictest0-21swapper/421:07:134
1874821991110,1cyclictest0-21swapper/419:16:044
187482199110,11cyclictest0-21swapper/420:06:034
187483799106,3cyclictest6050-21gmain00:15:217
187483799106,3cyclictest6050-21gmain00:15:217
187483799105,4cyclictest2159103-21latency_hist21:27:407
187483299101,4cyclictest1966867-21sed19:52:576
187483299101,3cyclictest2092938-21irqcore20:57:576
187483299101,3cyclictest2092938-21irqcore20:57:576
187483299100,4cyclictest2054785-21cut20:37:586
187483299100,3cyclictest2106641-21kthreadcore21:03:006
187483299100,2cyclictest2255528-21/usr/sbin/munin22:07:566
187482199108,2cyclictest1926682-21kworker/u16:1+events_unbound19:55:164
18748219997,2cyclictest1975209-21kworker/u16:2+flush-8:019:58:014
18748219997,2cyclictest1874389-21kworker/u16:2+flush-8:019:28:014
18748329980,4cyclictest1875038-21chrt19:07:506
18748219983,4cyclictest1937607-21tune2fs19:37:574
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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