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2026-04-19 - 13:19
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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 Sun Apr 19, 2026 12:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20888742470,0sleep72088875-21sh10:52:167
21625802420,0sleep72162581-21sh11:23:027
1600025994236,5cyclictest635-21systemd-journal10:49:417
1600025994236,5cyclictest635-21systemd-journal10:49:417
1600011994239,2cyclictest2163284-21kworker/u16:1+flush-8:011:54:464
15905782404,30sleep70-21swapper/707:04:527
1600020993937,2cyclictest1768024-21kworker/u16:2+events_unbound09:11:396
1600025993836,1cyclictest1833980-21diskmemload09:38:397
1600025993835,2cyclictest1931504-21munin-run09:49:417
1600020993836,2cyclictest1944000-21kworker/u16:3+events_unbound10:12:556
1600020993835,2cyclictest2102562-21kworker/u16:3+events_unbound12:34:426
1600020993735,2cyclictest2163284-21kworker/u16:1+events_unbound11:24:246
1600020993735,2cyclictest1930924-21kworker/u16:0+events_unbound09:58:356
1600020993735,2cyclictest1916820-21kworker/u16:2+events_unbound09:44:366
1600020993734,2cyclictest2029410-21kworker/u16:1+flush-8:010:44:406
159966023711,7sleep50-21swapper/507:08:515
1600025993635,0cyclictest0-21swapper/710:14:407
1600025993635,0cyclictest0-21swapper/709:21:357
1600025993635,0cyclictest0-21swapper/709:21:357
1600020993634,2cyclictest2237116-21kworker/u16:0+events_unbound12:16:146
1600020993634,2cyclictest1669653-21kworker/u16:4+events_unbound10:02:006
1600025993534,0cyclictest0-21swapper/711:54:077
1600025993534,0cyclictest0-21swapper/710:33:007
1600025993533,1cyclictest0-21swapper/711:57:557
1600025993531,3cyclictest2321070-21sh12:27:477
1600020993533,2cyclictest2249256-21kworker/u16:4+events_unbound12:32:356
1600020993533,2cyclictest2249256-21kworker/u16:4+events_unbound12:29:356
1600020993533,2cyclictest2102562-21kworker/u16:3+events_unbound11:34:386
1600020993533,2cyclictest2089397-21kworker/u16:1+events_unbound11:05:446
1600020993533,2cyclictest2014536-21kworker/u16:2+events_unbound10:48:486
1600020993533,2cyclictest2014536-21kworker/u16:2+events_unbound10:48:486
1600020993533,2cyclictest1956364-21kworker/u16:1+events_unbound10:17:156
1600025993433,0cyclictest0-21swapper/710:27:327
1600025993432,1cyclictest2004123-21ssh10:18:357
1600020993432,2cyclictest2102562-21kworker/u16:3+events_unbound12:06:556
1600020993432,2cyclictest2102562-21kworker/u16:3+events_unbound11:38:276
1600020993432,2cyclictest2069783-21kworker/u16:0+events_unbound10:58:116
1600020993432,2cyclictest1916820-21kworker/u16:2+events_unbound09:47:116
1600020993432,2cyclictest1858306-21kworker/u16:1+events_unbound09:51:196
1600020993432,2cyclictest1856000-21kworker/u16:0+events_unbound09:33:466
1600020993432,2cyclictest1824131-21kworker/u16:3+events_unbound09:21:396
1600020993432,2cyclictest1824131-21kworker/u16:3+events_unbound09:21:396
1600020993432,2cyclictest1669653-21kworker/u16:4+events_unbound10:38:076
159972123424,7sleep60-21swapper/607:09:406
1600025993332,0cyclictest0-21swapper/712:20:307
1600025993332,0cyclictest0-21swapper/712:15:357
1600025993332,0cyclictest0-21swapper/712:00:597
1600025993332,0cyclictest0-21swapper/711:46:387
1600025993332,0cyclictest0-21swapper/709:57:157
1600025993329,3cyclictest1025-21runrttasks08:23:037
1600020993331,2cyclictest2283371-21kworker/u16:1+events_unbound12:23:026
1600020993331,2cyclictest2163284-21kworker/u16:1+events_unbound12:04:306
1600020993331,2cyclictest2069783-21kworker/u16:0+events_unbound11:13:006
1600020993331,2cyclictest2069783-21kworker/u16:0+events_unbound11:02:356
1600020993331,2cyclictest2014536-21kworker/u16:2+events_unbound11:40:596
1600020993331,2cyclictest2014536-21kworker/u16:2+events_unbound10:34:366
1600020993331,2cyclictest1930924-21kworker/u16:0+events_unbound10:06:436
1600020993331,2cyclictest1930924-21kworker/u16:0+events_unbound10:06:436
1600020993331,2cyclictest1856000-21kworker/u16:0+events_unbound09:28:066
1600020993330,2cyclictest1571508-21kworker/u16:0+events_unbound07:09:446
1600011993331,2cyclictest1856000-21kworker/u16:0+events_unbound09:39:554
1600025993231,0cyclictest0-21swapper/711:44:387
1600025993231,0cyclictest0-21swapper/711:14:447
1600025993231,0cyclictest0-21swapper/709:42:047
1600025993231,0cyclictest0-21swapper/709:17:197
1600020993230,2cyclictest2163284-21kworker/u16:1+events_unbound11:50:596
1600020993230,2cyclictest2102562-21kworker/u16:3+events_unbound11:47:596
1600020993230,2cyclictest1669653-21kworker/u16:4+events_unbound10:25:436
1600011993230,2cyclictest1994268-21kworker/u16:0+events_unbound10:15:524
1600011993230,2cyclictest1858306-21kworker/u16:1+events_unbound09:52:514
1600011993230,2cyclictest1669653-21kworker/u16:4+events_unbound10:35:524
1600011993229,2cyclictest2249256-21kworker/u16:4+events_unbound12:27:514
1600011993229,2cyclictest2102562-21kworker/u16:3+events_unbound12:34:514
1600025993130,0cyclictest0-21swapper/711:35:487
1600025993130,0cyclictest0-21swapper/711:27:127
1600025993130,0cyclictest0-21swapper/711:27:127
1600025993130,0cyclictest0-21swapper/710:38:277
1600025993130,0cyclictest0-21swapper/710:06:227
1600025993130,0cyclictest0-21swapper/710:06:227
1600025993129,1cyclictest1941553-21ssh09:50:557
1600025993129,1cyclictest1833980-21diskmemload10:23:327
1600011993129,2cyclictest2102562-21kworker/u16:3+events_unbound11:46:514
1600011993129,2cyclictest2014536-21kworker/u16:2+events_unbound11:43:514
1600011993129,2cyclictest1824131-21kworker/u16:3+events_unbound09:15:514
1600011993129,2cyclictest1669653-21kworker/u16:4+events_unbound10:22:514
1600025993029,0cyclictest0-21swapper/712:34:087
1600025993029,0cyclictest0-21swapper/712:09:157
1600025993029,0cyclictest0-21swapper/711:11:197
1600025993029,0cyclictest0-21swapper/710:56:267
1600020993028,2cyclictest2237116-21kworker/u16:0+events_unbound12:11:266
1600020993028,2cyclictest2069783-21kworker/u16:0+events_unbound11:19:026
1600020993028,2cyclictest1768024-21kworker/u16:2+events_unbound09:02:516
1600020993028,2cyclictest1768024-21kworker/u16:2+events_unbound08:37:526
1600020993028,2cyclictest1669653-21kworker/u16:4+events_unbound08:11:476
1600011993028,2cyclictest1669653-21kworker/u16:4+events_unbound10:28:524
1600011993028,2cyclictest1613640-21kworker/u16:2+flush-8:007:14:594
1600025992928,0cyclictest0-21swapper/712:11:447
1600025992928,0cyclictest0-21swapper/711:04:347
1600025992928,0cyclictest0-21swapper/709:31:447
1600025992928,0cyclictest0-21swapper/709:12:277
1600020992927,2cyclictest1856000-21kworker/u16:0+events_unbound09:17:446
1600020992927,2cyclictest1680817-21kworker/u16:1+events_unbound07:57:526
1600020992927,2cyclictest1680817-21kworker/u16:1+events_unbound07:57:526
1600020992927,2cyclictest1669653-21kworker/u16:4+events_unbound08:20:526
1600011992927,2cyclictest2237116-21kworker/u16:0+events_unbound12:09:234
1600011992927,2cyclictest2102562-21kworker/u16:3+flush-8:012:20:024
1600011992927,2cyclictest2102562-21kworker/u16:3+events_unbound11:30:144
1600011992927,2cyclictest2102562-21kworker/u16:3+events_unbound11:00:024
1600011992926,2cyclictest2249256-21kworker/u16:4+events_unbound12:14:514
1600011992926,2cyclictest1916820-21kworker/u16:2+flush-8:009:44:434
1600025992827,0cyclictest0-21swapper/707:50:527
1600020992824,3cyclictest1795395-21kworker/u16:0+events_unbound08:52:396
1600016992823,4cyclictest1546804-21munin-node07:14:425
1600011992826,2cyclictest2014536-21kworker/u16:2+events_unbound10:30:014
1600011992826,2cyclictest1930924-21kworker/u16:0+events_unbound09:54:584
1600025992726,0cyclictest0-21swapper/708:13:527
1600025992726,0cyclictest0-21swapper/707:35:117
1600020992725,2cyclictest2102562-21kworker/u16:3+events_unbound11:56:146
1600011992726,1cyclictest2102562-21kworker/u16:3+events_unbound11:17:224
1600011992725,2cyclictest2249256-21kworker/u16:4+events_unbound12:31:384
1600011992725,2cyclictest1956364-21kworker/u16:1+events_unbound10:02:514
1600011992725,2cyclictest1805540-21kworker/u16:1+flush-8:009:05:034
1600011992724,2cyclictest2014536-21kworker/u16:2+events_unbound10:54:464
1600025992625,0cyclictest0-21swapper/711:31:387
1600025992625,0cyclictest0-21swapper/708:57:527
1600025992625,0cyclictest0-21swapper/708:09:247
1600020992624,2cyclictest1994268-21kworker/u16:0+events_unbound10:23:456
1600020992624,2cyclictest1736451-21kworker/u16:0+events_unbound08:30:526
1600020992624,2cyclictest1613640-21kworker/u16:2+events_unbound07:19:246
1600011992624,2cyclictest2249256-21kworker/u16:4+events_unbound12:13:274
1600011992624,2cyclictest2102562-21kworker/u16:3+events_unbound11:53:514
1600011992624,2cyclictest2014536-21kworker/u16:2+flush-8:010:45:264
1600011992624,2cyclictest2014536-21kworker/u16:2+flush-8:010:45:264
1600011992624,2cyclictest2014536-21kworker/u16:2+events_unbound11:06:514
1600011992624,2cyclictest1956364-21kworker/u16:1+flush-8:010:09:584
1600011992624,2cyclictest1858306-21kworker/u16:1+events_unbound09:28:564
1600011992624,2cyclictest1824131-21kworker/u16:3+flush-8:009:09:594
1600011992624,2cyclictest1613640-21kworker/u16:2+events_unbound07:59:554
159954422616,7sleep40-21swapper/407:07:134
1600025992523,1cyclictest1967045-21ssh10:02:477
1600020992523,2cyclictest1856000-21kworker/u16:0+events_unbound09:36:416
1600020992523,2cyclictest1669653-21kworker/u16:4+flush-8:008:01:016
1600011992524,1cyclictest1930924-21kworker/u16:0+events_unbound10:07:284
1600011992524,1cyclictest1930924-21kworker/u16:0+events_unbound10:07:284
1600011992523,2cyclictest2102562-21kworker/u16:3+events_unbound11:38:464
1600011992523,2cyclictest2102562-21kworker/u16:3+events_unbound11:10:384
1600011992523,2cyclictest1669653-21kworker/u16:4+events_unbound10:43:434
1600011992522,2cyclictest2069783-21kworker/u16:0+flush-8:011:24:464
1600011992522,2cyclictest2069783-21kworker/u16:0+flush-8:011:24:464
1600025992423,0cyclictest0-21swapper/708:38:477
1600020992422,2cyclictest2102562-21kworker/u16:3+events_unbound11:28:056
1600020992422,2cyclictest2102562-21kworker/u16:3+events_unbound11:28:056
1600011992422,2cyclictest1669653-21kworker/u16:4+events_unbound08:11:514
1600011992422,2cyclictest1632869-21kworker/u16:3+flush-8:007:29:594
1600025992322,0cyclictest0-21swapper/710:43:577
1600025992322,0cyclictest0-21swapper/708:43:467
1600025992322,0cyclictest0-21swapper/707:59:227
1600025992322,0cyclictest0-21swapper/707:59:227
1600025992317,5cyclictest1609497-21latency_hist07:14:427
1600020992321,2cyclictest1669653-21kworker/u16:4+events_unbound08:46:516
1600020992321,2cyclictest1613640-21kworker/u16:2+events_unbound07:49:426
1600011992321,2cyclictest2076994-21kworker/u16:3+events_unbound10:53:004
1600011992321,2cyclictest1856000-21kworker/u16:0+events_unbound09:35:354
1600011992321,2cyclictest1824131-21kworker/u16:3+flush-8:009:22:474
1600011992321,2cyclictest1824131-21kworker/u16:3+flush-8:009:22:474
1600011992321,2cyclictest1824131-21kworker/u16:3+events_unbound09:31:194
1600025992221,0cyclictest0-21swapper/712:36:437
1600011992220,2cyclictest2102562-21kworker/u16:3+events_unbound11:23:394
1600025992120,0cyclictest0-21swapper/711:07:057
1600025992120,0cyclictest0-21swapper/708:29:207
1600025992117,3cyclictest635-21systemd-journal08:19:367
1600020992119,2cyclictest2014536-21kworker/u16:2+events_unbound10:54:096
1600020992119,2cyclictest1613640-21kworker/u16:2+flush-8:007:45:016
1600020992119,2cyclictest1613640-21kworker/u16:2+events_unbound07:39:446
1600020992018,2cyclictest1708973-21kworker/u16:3+flush-8:008:19:086
1600020992018,2cyclictest1669653-21kworker/u16:4+events_unbound09:07:156
1600011992018,2cyclictest2237116-21kworker/u16:0+events_unbound12:03:064
1600011992018,2cyclictest1669653-21kworker/u16:4+flush-8:008:40:094
1600025991914,4cyclictest1708947-21packagekitd08:01:017
1600020991917,2cyclictest1632869-21kworker/u16:3+events_unbound07:35:286
1600020991917,2cyclictest1613640-21kworker/u16:2+events_unbound07:32:436
1600011991916,2cyclictest1613640-21kworker/u16:2+events_unbound07:24:434
1600025991817,0cyclictest0-21swapper/707:25:477
1600025991816,1cyclictest0-21swapper/709:25:497
1600011991816,2cyclictest1768024-21kworker/u16:2+events_unbound08:51:524
1600011991816,2cyclictest1680817-21kworker/u16:1+flush-8:007:55:074
1600011991816,2cyclictest1680817-21kworker/u16:1+flush-8:007:55:074
1600011991814,3cyclictest1768024-21kworker/u16:2+flush-8:008:55:024
1600011991715,2cyclictest1571508-21kworker/u16:0+flush-8:007:38:514
1600025991615,0cyclictest0-21swapper/709:01:057
1600011991614,2cyclictest1768024-21kworker/u16:2+flush-8:008:49:364
1600025991514,0cyclictest0-21swapper/707:24:397
1600020991513,2cyclictest1708973-21kworker/u16:3+flush-8:008:29:126
1600011991513,2cyclictest1571508-21kworker/u16:0+events_unbound07:09:594
160002599140,12cyclictest1671140-21latency_hist07:44:417
1600016991413,1cyclictest0-21swapper/510:56:235
1600016991413,1cyclictest0-21swapper/510:42:595
1600016991413,1cyclictest0-21swapper/509:30:095
160001699140,1cyclictest0-21swapper/511:12:005
160001699140,14cyclictest0-21swapper/512:31:185
160001699140,14cyclictest0-21swapper/512:13:105
160001699140,14cyclictest0-21swapper/511:30:075
160001699140,14cyclictest0-21swapper/510:30:135
160001699140,14cyclictest0-21swapper/510:18:055
160001699140,14cyclictest0-21swapper/509:52:325
1600011991412,2cyclictest1669653-21kworker/u16:4+events_unbound08:15:124
160002599139,3cyclictest1234-21snmpd08:33:487
1600025991313,0cyclictest0-21swapper/707:19:167
1600020991311,2cyclictest1613640-21kworker/u16:2+events_unbound08:09:086
160001699137,2cyclictest5829-21JS15:59:265
160001699135,7cyclictest0-21swapper/512:14:585
1600016991312,1cyclictest0-21swapper/511:59:085
1600016991312,1cyclictest0-21swapper/511:44:575
1600016991312,1cyclictest0-21swapper/509:40:525
1600011991311,2cyclictest1736451-21kworker/u16:0+events_unbound08:19:514
1600025991211,0cyclictest0-21swapper/708:49:427
1600020991210,2cyclictest1768024-21kworker/u16:2+events_unbound08:43:366
160001699128,1cyclictest0-21swapper/511:29:115
160001699128,1cyclictest0-21swapper/511:29:115
160001699127,1cyclictest0-21swapper/509:19:455
160001699127,1cyclictest0-21swapper/509:19:455
160001699123,4cyclictest1964574-21latency10:00:005
160001699120,8cyclictest0-21swapper/511:15:005
160001699120,1cyclictest0-21swapper/509:08:145
160001699120,1cyclictest0-21swapper/508:08:105
1600011991210,2cyclictest1669653-21kworker/u16:4+events_unbound08:33:284
1600011991210,2cyclictest1613640-21kworker/u16:2+events_unbound07:20:034
160002599117,3cyclictest1234-21snmpd08:47:407
160002599110,9cyclictest1234-21snmpd07:30:417
160002099119,2cyclictest1613640-21kworker/u16:2+events_unbound07:27:076
1600020991110,1cyclictest0-21swapper/608:58:446
160001699115,1cyclictest0-21swapper/508:25:015
1600016991110,1cyclictest0-21swapper/508:49:285
160001199118,2cyclictest1613640-21kworker/u16:2+events_unbound07:44:524
160002599107,2cyclictest1234-21snmpd07:45:357
160002599106,3cyclictest6032-21gmain09:05:067
160002099108,2cyclictest1613640-21kworker/u16:2+events_unbound07:23:116
160001699105,4cyclictest6331-21gdbus11:44:415
160001199108,2cyclictest1757702-21kworker/u16:1+events_unbound08:39:044
160001199107,2cyclictest1736451-21kworker/u16:0+flush-8:008:24:514
16000169995,3cyclictest1818499-21kthreadcore08:59:595
16000169995,3cyclictest1720049-21cat08:09:565
16000169995,3cyclictest1641707-21grep07:25:085
16000169990,8cyclictest0-21swapper/507:59:565
16000169990,1cyclictest0-21swapper/512:25:015
16000119990,8cyclictest0-21swapper/408:59:564
16000169986,1cyclictest0-21swapper/512:00:015
16000169985,2cyclictest0-21swapper/511:50:005
16000169985,2cyclictest0-21swapper/508:34:595
16000169984,3cyclictest2080448-21cut10:49:585
16000169983,4cyclictest2337807-21cut12:35:005
16000169983,4cyclictest2266984-21kthreadcore12:05:005
16000169983,4cyclictest2189254-21if_p4p111:34:575
16000169983,4cyclictest2104218-21cut10:59:575
16000169983,4cyclictest2066851-21df_inode10:44:545
16000169983,4cyclictest2066851-21df_inode10:44:545
16000169983,4cyclictest2010330-21grep10:20:015
16000169983,4cyclictest1981452-21tune2fs10:09:555
16000169983,4cyclictest1971912-21cat10:05:005
16000169983,4cyclictest1971912-21cat10:05:005
16000169983,4cyclictest1926516-21grep09:45:035
16000169983,4cyclictest1900775-21kthreadcore09:35:005
16000169983,4cyclictest1846653-21awk09:14:535
16000169983,4cyclictest1652782-21grep07:34:565
16000169983,4cyclictest1601827-21kthreadcore07:09:585
16000169980,7cyclictest1879564-21pmu-power09:25:075
16000169980,4cyclictest1947021-21kthreadcore09:55:005
16000119986,2cyclictest1613640-21kworker/u16:2+events_unbound07:52:514
16000119983,4cyclictest1666342-21cut07:40:014
16000169975,1cyclictest0-21swapper/508:39:585
16000169975,1cyclictest0-21swapper/507:54:555
16000169975,1cyclictest0-21swapper/507:54:555
16000169974,2cyclictest2299626-21kthreadcore12:19:575
16000169974,2cyclictest1624514-21kthreadcore07:19:595
16000169974,2cyclictest0-21swapper/511:20:005
16000169973,3cyclictest2116259-21cut11:04:575
16000169973,3cyclictest2017850-21cat10:24:555
16000169973,3cyclictest1758501-21if_p4p108:29:585
16000169973,3cyclictest1743254-21cut08:20:015
16000169973,3cyclictest1729683-21ip_192.168.115.08:14:565
16000169973,3cyclictest1673576-21grep07:45:005
16000169973,3cyclictest1642872-21expr07:29:535
16000169972,4cyclictest2043204-21cut10:34:595
16000169972,4cyclictest1810601-21kthreadcore08:55:015
16000169972,4cyclictest1681491-21fschecks_time07:49:565
16000169972,4cyclictest1662999-21cut07:39:585
16000169970,4cyclictest1834591-21cpuspeed_turbos09:09:525
16000119975,1cyclictest0-21swapper/408:04:574
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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