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2026-09-24 - 01:54
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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 Sep 24, 2026 00:43:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24175362650,1sleep72417537-21rm23:51:397
178195525420,29sleep70-21swapper/719:06:297
178218924620,8sleep50-21swapper/519:09:485
178218824433,8sleep40-21swapper/419:09:474
1782471993429,4cyclictest647-21systemd-journal19:14:597
1782464993432,2cyclictest2150968-21kworker/u16:0+events_unbound23:51:075
1782464993230,2cyclictest2042734-21kworker/u16:2+events_unbound21:24:565
1782464993230,2cyclictest2019353-21kworker/u16:3+events_unbound21:59:555
1782462993129,2cyclictest2042734-21kworker/u16:2+events_unbound22:49:224
178213323119,8sleep60-21swapper/619:09:016
1782464993029,1cyclictest2150968-21kworker/u16:0+events_unbound23:36:305
1782464993028,2cyclictest2431429-21kworker/u16:1+events_unbound00:06:315
1782464993028,2cyclictest2346554-21kworker/u16:1+events_unbound23:34:505
1782464993028,2cyclictest2150968-21kworker/u16:0+events_unbound22:34:445
1782464993028,2cyclictest2066954-21kworker/u16:4+events_unbound22:18:065
1782464993028,2cyclictest2042734-21kworker/u16:2+events_unbound22:01:095
1782464993028,2cyclictest1989461-21kworker/u16:1+events_unbound21:18:085
1782471992926,1cyclictest0-21swapper/722:45:147
1782464992928,1cyclictest2468348-21kworker/u16:3+events_unbound00:22:355
1782464992928,1cyclictest2395497-21kworker/u16:2+events_unbound00:16:105
1782464992927,2cyclictest2515105-21kworker/u16:4+events_unbound00:38:155
1782464992927,2cyclictest2150968-21kworker/u16:0+events_unbound00:34:165
1782464992927,2cyclictest2042734-21kworker/u16:2+events_unbound23:04:445
1782464992927,2cyclictest2042734-21kworker/u16:2+events_unbound23:04:445
1782464992826,2cyclictest2066954-21kworker/u16:4+flush-8:022:25:185
1782464992826,2cyclictest2042734-21kworker/u16:2+events_unbound22:07:195
1782464992826,2cyclictest2042734-21kworker/u16:2+events_unbound21:53:205
1782464992826,2cyclictest2019353-21kworker/u16:3+events_unbound21:27:195
1782464992726,1cyclictest2260979-21kworker/u16:1+events_unbound22:54:155
1782464992725,2cyclictest2320524-21kworker/u16:3+events_unbound23:17:205
1782464992725,2cyclictest2150968-21kworker/u16:0+events_unbound23:47:165
1782464992725,2cyclictest2150968-21kworker/u16:0+events_unbound23:27:075
1782464992725,2cyclictest2019353-21kworker/u16:3+events_unbound21:42:475
1782464992725,2cyclictest1783552-21kworker/u16:2+flush-8:019:25:275
1782464992724,2cyclictest1931462-21kworker/u16:1+flush-8:020:35:165
1782464992625,1cyclictest2042734-21kworker/u16:2+events_unbound21:38:315
1782464992624,2cyclictest2260979-21kworker/u16:1+events_unbound23:10:345
1782464992624,2cyclictest2150968-21kworker/u16:0+events_unbound23:41:235
1782464992624,2cyclictest2066954-21kworker/u16:4+events_unbound22:22:315
1782464992624,2cyclictest2042734-21kworker/u16:2+events_unbound21:33:055
1782464992623,2cyclictest2150968-21kworker/u16:0+events_unbound22:55:085
1782464992623,2cyclictest1792340-21kworker/u16:4+events_unbound20:15:125
1782471992524,0cyclictest0-21swapper/722:59:587
1782471992524,0cyclictest0-21swapper/722:25:277
1782464992523,2cyclictest2260979-21kworker/u16:1+events_unbound23:08:355
1782464992523,2cyclictest2260979-21kworker/u16:1+events_unbound23:08:355
1782464992523,2cyclictest2150968-21kworker/u16:0+events_unbound00:26:065
1782464992523,2cyclictest2150968-21kworker/u16:0+events_unbound00:03:185
1782464992523,2cyclictest2066954-21kworker/u16:4+events_unbound21:49:065
1782464992523,2cyclictest2042734-21kworker/u16:2+events_unbound22:48:315
1782464992523,2cyclictest1903553-21kworker/u16:0+events_unbound21:10:445
1782464992521,3cyclictest2150968-21kworker/u16:0+flush-8:022:35:475
1782464992422,2cyclictest2395497-21kworker/u16:2+events_unbound00:11:505
1782464992422,2cyclictest2150968-21kworker/u16:0+events_unbound22:44:095
1782464992422,2cyclictest2066954-21kworker/u16:4+events_unbound22:12:315
1782464992422,2cyclictest1903553-21kworker/u16:0+events_unbound20:47:075
1782464992422,2cyclictest1792340-21kworker/u16:4+flush-8:020:25:175
1782471992322,0cyclictest0-21swapper/700:00:147
178247199230,21cyclictest647-21systemd-journal23:14:537
1782464992321,2cyclictest2380628-21kworker/u16:3+events_unbound23:56:105
1782464992220,2cyclictest521614-21kworker/u16:3+events_unbound19:15:225
1782464992220,2cyclictest2150968-21kworker/u16:0+events_unbound23:21:485
1782471992117,3cyclictest1275-21snmpd20:18:587
1782464992119,2cyclictest1783552-21kworker/u16:2+events_unbound20:09:075
1782464992018,2cyclictest1772783-21kworker/u16:1+events_unbound19:13:195
1782471991918,0cyclictest0-21swapper/721:10:177
1782467991915,3cyclictest2286026-21cat22:59:596
1782464991917,2cyclictest1903553-21kworker/u16:0+events_unbound21:02:085
1782464991917,2cyclictest1792340-21kworker/u16:4+flush-8:020:00:245
1782464991917,2cyclictest1783552-21kworker/u16:2+events_unbound19:53:195
1782471991817,0cyclictest0-21swapper/720:05:327
178247199180,16cyclictest1275-21snmpd19:29:217
1782467991813,4cyclictest1911981-21cat20:14:546
1782467991813,4cyclictest1855133-21iostat_ios19:45:186
1782464991816,2cyclictest1999358-21kworker/u16:2+flush-8:021:09:545
1782464991816,2cyclictest1931462-21kworker/u16:1+events_unbound20:33:195
1782471991713,3cyclictest1275-21snmpd00:38:147
1782464991715,2cyclictest1969123-21kworker/u16:4+events_unbound20:56:095
1782464991715,2cyclictest1783552-21kworker/u16:2+events_unbound19:44:435
1782471991613,2cyclictest1275-21snmpd19:52:437
178246799160,16cyclictest0-21swapper/622:15:256
1782464991614,2cyclictest1783552-21kworker/u16:2+events_unbound19:49:205
1782464991614,2cyclictest1728820-21kworker/u16:0+flush-8:019:20:185
1782462991613,2cyclictest2094523-21cut21:40:164
1782471991514,0cyclictest0-21swapper/700:10:127
1782471991512,2cyclictest2112604-21ssh21:45:267
1782471991512,2cyclictest1275-21snmpd21:51:587
178247199150,14cyclictest0-21swapper/719:40:247
1782467991514,1cyclictest0-21swapper/600:26:006
1782467991513,2cyclictest2150968-21kworker/u16:0+flush-8:023:40:336
1782467991512,2cyclictest2200645-21kworker/u16:1+flush-8:022:29:586
178246799150,15cyclictest0-21swapper/622:24:276
178246799150,15cyclictest0-21swapper/621:11:186
1782464991513,2cyclictest1903553-21kworker/u16:0+events_unbound20:51:085
1782464991513,2cyclictest1903553-21kworker/u16:0+events_unbound20:51:085
1782464991513,2cyclictest1873662-21kworker/u16:3+events_unbound20:22:205
1782464991513,2cyclictest1792340-21kworker/u16:4+events_unbound19:33:075
178247199149,4cyclictest647-21systemd-journal20:54:597
178247199149,4cyclictest647-21systemd-journal20:54:597
178247199146,6cyclictest6325-21gmain23:55:227
178247199140,1cyclictest0-21swapper/721:55:217
1782467991413,1cyclictest0-21swapper/623:23:346
1782467991413,1cyclictest0-21swapper/623:06:426
1782467991413,1cyclictest0-21swapper/623:06:426
1782467991413,1cyclictest0-21swapper/622:52:116
1782467991413,1cyclictest0-21swapper/622:38:196
1782467991413,1cyclictest0-21swapper/621:21:516
1782467991413,1cyclictest0-21swapper/620:45:266
1782467991413,1cyclictest0-21swapper/600:10:236
178246799140,1cyclictest0-21swapper/622:33:076
1782464991412,2cyclictest1873662-21kworker/u16:3+events_unbound20:13:075
178246299149,4cyclictest2480075-21latency_hist00:19:584
1782462991413,1cyclictest0-21swapper/423:35:214
1782462991413,1cyclictest0-21swapper/422:26:184
1782462991413,1cyclictest0-21swapper/421:38:324
1782462991413,1cyclictest0-21swapper/400:01:224
1782462991411,2cyclictest1807399-21kthreadcore19:20:164
178246299140,1cyclictest0-21swapper/422:14:004
178246299140,14cyclictest0-21swapper/422:33:144
178247199139,3cyclictest1275-21snmpd21:22:037
178247199139,3cyclictest1275-21snmpd19:24:547
178247199136,6cyclictest6733-21gmain22:05:307
178247199136,6cyclictest0-21swapper/721:41:407
1782471991313,0cyclictest0-21swapper/723:25:557
1782471991311,1cyclictest0-21swapper/720:30:187
1782471991310,2cyclictest0-21swapper/723:40:277
178247199130,1cyclictest0-21swapper/721:35:127
1782467991312,1cyclictest0-21swapper/622:43:316
1782467991312,1cyclictest0-21swapper/622:04:546
1782467991312,1cyclictest0-21swapper/621:38:066
1782467991312,1cyclictest0-21swapper/621:29:066
1782467991312,1cyclictest0-21swapper/600:20:476
1782467991310,2cyclictest2439656-21kthreadcore00:00:196
178246799130,1cyclictest0-21swapper/621:57:486
178246799130,13cyclictest0-21swapper/623:37:266
178246499139,3cyclictest1844272-21awk19:39:595
1782462991312,1cyclictest0-21swapper/423:40:344
1782462991312,1cyclictest0-21swapper/423:00:504
1782462991312,1cyclictest0-21swapper/423:00:504
1782462991312,1cyclictest0-21swapper/422:55:384
1782462991312,1cyclictest0-21swapper/422:50:284
1782462991312,1cyclictest0-21swapper/421:20:344
1782462991312,1cyclictest0-21swapper/419:54:204
1782462991312,1cyclictest0-21swapper/400:22:014
178246299130,1cyclictest0-21swapper/422:06:554
178246299130,13cyclictest0-21swapper/423:06:024
178246299130,13cyclictest0-21swapper/423:06:024
178246299130,13cyclictest0-21swapper/421:54:374
178246299130,13cyclictest0-21swapper/420:44:184
178246299130,0cyclictest0-21swapper/421:33:114
178246299130,0cyclictest0-21swapper/400:27:134
178247199129,2cyclictest1275-21snmpd20:23:387
178247199129,2cyclictest1275-21snmpd00:15:177
178247199129,2cyclictest0-21swapper/721:30:237
178247199129,2cyclictest0-21swapper/700:04:597
178247199128,3cyclictest1275-21snmpd23:35:557
178247199128,3cyclictest1275-21snmpd22:19:027
178247199128,3cyclictest1275-21snmpd19:45:427
178247199128,3cyclictest1275-21snmpd19:31:277
1782471991212,0cyclictest0-21swapper/700:21:257
1782471991210,1cyclictest2502871-21ssh00:27:157
1782471991210,1cyclictest0-21swapper/721:25:307
178247199120,11cyclictest2244521-21grep22:40:217
178247199120,11cyclictest2173120-21ssh22:10:277
178247199120,10cyclictest1275-21snmpd23:00:247
178247199120,10cyclictest1275-21snmpd23:00:247
178246799128,4cyclictest0-21swapper/621:34:286
178246799121,11cyclictest86-21ksoftirqd/623:28:456
1782467991211,1cyclictest0-21swapper/622:48:436
1782467991211,1cyclictest0-21swapper/621:47:056
1782467991211,1cyclictest0-21swapper/619:12:546
1782467991211,1cyclictest0-21swapper/600:15:356
1782467991211,1cyclictest0-21swapper/600:05:116
178246799120,1cyclictest0-21swapper/620:09:396
178246799120,1cyclictest0-21swapper/619:53:256
1782462991211,1cyclictest0-21swapper/422:17:294
1782462991211,1cyclictest0-21swapper/421:58:054
1782462991211,1cyclictest0-21swapper/421:45:384
1782462991211,1cyclictest0-21swapper/419:40:274
1782462991210,2cyclictest2395497-21kworker/u16:2+flush-8:000:30:464
178246299120,12cyclictest0-21swapper/420:36:544
178247199119,1cyclictest2141070-21ssh22:00:157
178247199118,2cyclictest1275-21snmpd20:39:447
178247199118,2cyclictest1275-21snmpd20:02:407
178247199118,2cyclictest1275-21snmpd19:35:517
178247199118,2cyclictest0-21swapper/723:20:227
178247199118,2cyclictest0-21swapper/722:50:267
178247199118,2cyclictest0-21swapper/722:35:237
178247199118,2cyclictest0-21swapper/721:00:197
178247199117,3cyclictest1275-21snmpd23:33:497
178247199117,3cyclictest1275-21snmpd23:05:487
178247199117,3cyclictest1275-21snmpd23:05:487
178247199117,3cyclictest1275-21snmpd21:09:367
178247199116,4cyclictest1121-21lldpd20:25:187
178247199115,5cyclictest6563-21gvfs-afc-volume22:21:117
1782471991111,0cyclictest0-21swapper/720:12:107
178247199110,1cyclictest2504756-21ssh00:30:027
178247199110,10cyclictest1275-21snmpd19:17:577
178246799119,2cyclictest86-21ksoftirqd/623:30:206
178246799118,2cyclictest86-21ksoftirqd/623:50:136
178246799116,1cyclictest2512540-21kthreadcore00:30:206
178246799112,8cyclictest0-21swapper/620:35:126
1782467991110,1cyclictest0-21swapper/623:46:066
1782467991110,1cyclictest0-21swapper/623:00:526
1782467991110,1cyclictest0-21swapper/623:00:526
1782467991110,1cyclictest0-21swapper/622:10:066
1782467991110,1cyclictest0-21swapper/621:52:266
1782467991110,1cyclictest0-21swapper/621:00:256
1782467991110,1cyclictest0-21swapper/620:27:096
1782467991110,1cyclictest0-21swapper/619:59:246
1782467991110,1cyclictest0-21swapper/619:25:216
178246799110,11cyclictest0-21swapper/620:03:306
178246799110,10cyclictest1845799-21irqcore19:40:176
178246499110,1cyclictest0-21swapper/519:57:135
178246299116,4cyclictest1855117-21cat19:45:174
1782462991110,1cyclictest0-21swapper/423:56:104
1782462991110,1cyclictest0-21swapper/423:45:464
1782462991110,1cyclictest0-21swapper/423:26:414
1782462991110,1cyclictest0-21swapper/422:24:344
1782462991110,1cyclictest0-21swapper/421:25:554
1782462991110,1cyclictest0-21swapper/421:15:124
1782462991110,1cyclictest0-21swapper/420:57:234
1782462991110,1cyclictest0-21swapper/419:26:254
1782462991110,1cyclictest0-21swapper/400:37:094
178246299110,11cyclictest0-21swapper/420:04:254
178246299110,11cyclictest0-21swapper/419:38:344
178247199107,2cyclictest2040138-21/usr/sbin/munin21:15:307
178247199107,2cyclictest0-21swapper/719:55:167
178247199106,3cyclictest1275-21snmpd20:57:447
178247199105,3cyclictest1964862-21kthreadcore20:40:197
178247199100,8cyclictest2222692-21ssh22:30:497
178247199100,1cyclictest2406078-21ssh23:47:577
178246799109,1cyclictest0-21swapper/620:58:416
178246799100,9cyclictest2517168-21expr00:35:126
178246799100,9cyclictest2428415-21ntpq23:55:236
178246799100,9cyclictest2318258-21kthreadcore23:10:246
178246799100,3cyclictest1812947-21cut19:20:206
178246299109,1cyclictest0-21swapper/423:31:534
178246299109,1cyclictest0-21swapper/423:21:294
178246299109,1cyclictest0-21swapper/422:40:014
178246299109,1cyclictest0-21swapper/421:01:014
178246299109,1cyclictest0-21swapper/420:33:164
17824719995,3cyclictest2331265-21ssh23:15:227
17824719994,4cyclictest1238-21tuned-ppd20:45:157
17824679998,1cyclictest0-21swapper/621:09:336
17824679998,1cyclictest0-21swapper/620:54:546
17824679998,1cyclictest0-21swapper/620:54:546
17824679996,2cyclictest0-21swapper/623:15:136
17824679995,3cyclictest2092486-21cat21:40:136
17824679995,3cyclictest1843233-21grub2-editenv19:35:226
17824679990,8cyclictest2156298-21grep22:05:176
17824679990,8cyclictest2031791-21ps21:15:156
17824679990,8cyclictest1828408-21cut19:30:206
17824629998,1cyclictest0-21swapper/419:18:134
17824629998,1cyclictest0-21swapper/419:13:584
17824629995,3cyclictest1903530-21cat20:10:144
17824629994,4cyclictest1970883-21tune2fs20:45:124
17824629990,8cyclictest0-21swapper/420:25:144
17824679986,1cyclictest1796164-21fschecks_time19:15:046
17824679983,4cyclictest1962813-21kthreadcore20:40:166
17824679980,8cyclictest0-21swapper/620:20:146
17824679980,7cyclictest0-21swapper/620:30:296
17824679980,2cyclictest1920887-21sed20:15:286
17824649983,4cyclictest1970084-21cat20:44:595
17824629987,1cyclictest0-21swapper/421:08:164
17824629986,1cyclictest0-21swapper/423:10:244
17824629986,1cyclictest0-21swapper/422:35:204
17824629986,1cyclictest0-21swapper/420:50:204
17824629986,1cyclictest0-21swapper/420:50:204
17824629985,2cyclictest0-21swapper/419:55:194
17824629984,3cyclictest2409471-21kthreadcore23:50:164
17824629984,3cyclictest2322748-21munin-node23:15:104
17824629984,3cyclictest2027317-21ntpq21:10:244
17824629984,3cyclictest1893901-21ip_192.168.115.20:05:194
17824629983,4cyclictest2457042-21if_err_p4p100:10:114
17824629983,4cyclictest2445254-21cut00:05:164
17824629983,4cyclictest2145693-21grep22:00:204
17824629983,4cyclictest1925808-21cut20:20:174
17824629983,4cyclictest1827930-21cut19:30:194
17824629975,1cyclictest0-21swapper/420:15:214
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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