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2026-04-21 - 02:43
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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 Tue Apr 21, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16353452940,1sleep50-21swapper/520:19:565
14926952940,0sleep50-21swapper/519:09:535
149039325848,7sleep40-21swapper/419:08:094
149033525025,7sleep50-21swapper/519:07:225
14818782446,32sleep70-21swapper/719:04:517
1490801993835,2cyclictest2051408-21kworker/u16:3+events_unbound23:26:015
1490805993533,2cyclictest1580868-21kworker/u16:3+events_unbound20:09:366
1490805993432,2cyclictest2015460-21kworker/u16:1+flush-8:023:27:496
1490801993432,2cyclictest1989149-21kworker/u16:2+flush-8:023:06:295
1490801993432,2cyclictest1989149-21kworker/u16:2+events_unbound23:43:145
1490801993432,2cyclictest1878855-21kworker/u16:0+events_unbound23:13:225
1490801993432,2cyclictest1724657-21kworker/u16:2+events_unbound21:17:115
1490801993431,2cyclictest2051408-21kworker/u16:3+events_unbound23:49:395
1490805993331,2cyclictest2100208-21kworker/u16:1+events_unbound00:18:456
1490805993331,2cyclictest1866582-21kworker/u16:1+events_unbound22:19:386
1490805993331,2cyclictest1784540-21kworker/u16:0+events_unbound21:50:466
1490805993331,2cyclictest1784540-21kworker/u16:0+events_unbound21:50:466
1490801993331,2cyclictest2073133-21kworker/u16:0+events_unbound23:47:215
1490801993331,2cyclictest1989149-21kworker/u16:2+flush-8:000:24:455
1490801993331,2cyclictest1878855-21kworker/u16:0+events_unbound22:22:305
1490801993230,2cyclictest2100208-21kworker/u16:1+events_unbound00:13:425
1490801993230,2cyclictest1989149-21kworker/u16:2+flush-8:023:36:425
1490801993230,2cyclictest1989149-21kworker/u16:2+flush-8:023:32:465
1490801993230,2cyclictest1989149-21kworker/u16:2+events_unbound00:19:065
1490801993230,2cyclictest1878855-21kworker/u16:0+events_unbound23:18:415
1490801993230,2cyclictest1878855-21kworker/u16:0+events_unbound23:18:415
1490801993230,2cyclictest1878855-21kworker/u16:0+events_unbound22:36:265
1490801993230,2cyclictest1866582-21kworker/u16:1+flush-8:022:31:105
1490801993230,2cyclictest1733716-21kworker/u16:4+events_unbound21:57:415
1490801993230,2cyclictest1695369-21kworker/u16:3+events_unbound22:18:105
1490805993129,2cyclictest1695369-21kworker/u16:3+flush-8:021:29:356
1490801993129,2cyclictest2073133-21kworker/u16:0+events_unbound00:03:555
1490801993129,2cyclictest1989149-21kworker/u16:2+flush-8:022:59:095
1490801993129,2cyclictest1906053-21kworker/u16:4+events_unbound22:29:265
1490801993129,2cyclictest1878855-21kworker/u16:0+events_unbound23:03:385
1490801993129,2cyclictest1845635-21kworker/u16:0+events_unbound22:01:575
1490801993129,2cyclictest1757895-21kworker/u16:1+events_unbound21:27:025
1490801993129,2cyclictest1628388-21kworker/u16:0+events_unbound20:57:535
1490801993128,2cyclictest2073133-21kworker/u16:0+flush-8:000:04:375
1490796993128,2cyclictest1866582-21kworker/u16:1+flush-8:022:14:354
149045123120,8sleep60-21swapper/619:08:596
1490805993028,2cyclictest1906053-21kworker/u16:4+events_unbound22:35:306
1490805993027,2cyclictest1695369-21kworker/u16:3+events_unbound21:14:576
1490801993028,2cyclictest1989149-21kworker/u16:2+events_unbound23:58:255
1490801993028,2cyclictest1989149-21kworker/u16:2+events_unbound00:24:135
1490801993028,2cyclictest1866582-21kworker/u16:1+events_unbound22:06:095
1490801993028,2cyclictest1757895-21kworker/u16:1+events_unbound21:21:145
1490801993028,2cyclictest1695369-21kworker/u16:3+flush-8:021:52:255
1490801993028,2cyclictest1695369-21kworker/u16:3+flush-8:021:52:255
1490805992927,2cyclictest1989149-21kworker/u16:2+events_unbound23:17:296
1490805992927,2cyclictest1989149-21kworker/u16:2+events_unbound23:17:296
1490801992927,2cyclictest2206382-21kworker/u16:3+flush-8:000:37:545
1490801992927,2cyclictest1878855-21kworker/u16:0+events_unbound23:22:105
1490801992927,2cyclictest1784540-21kworker/u16:0+flush-8:021:42:215
1490801992927,2cyclictest1784540-21kworker/u16:0+flush-8:021:38:055
1490801992927,2cyclictest1733716-21kworker/u16:4+flush-8:021:12:505
1490801992927,2cyclictest1733716-21kworker/u16:4+events_unbound21:46:215
1490801992927,2cyclictest1695369-21kworker/u16:3+flush-8:021:29:455
1490801992927,2cyclictest1695369-21kworker/u16:3+events_unbound22:11:145
1490805992826,2cyclictest2073133-21kworker/u16:0+events_unbound00:38:336
1490805992826,2cyclictest2073133-21kworker/u16:0+events_unbound00:12:456
1490801992826,2cyclictest1608625-21kworker/u16:1+events_unbound21:00:455
1490805992725,2cyclictest1866582-21kworker/u16:1+events_unbound22:25:516
1490805992725,2cyclictest1866582-21kworker/u16:1+events_unbound22:06:306
1490805992725,2cyclictest1695369-21kworker/u16:3+events_unbound21:57:456
1490801992725,2cyclictest1878855-21kworker/u16:0+flush-8:022:45:095
19666612260,1chrt1966662-21latency_hist22:49:357
18438412260,1chrt1843842-21rm21:56:227
1490805992624,2cyclictest1878855-21kworker/u16:0+events_unbound22:32:266
1490805992624,2cyclictest1757895-21kworker/u16:1+events_unbound21:32:466
1490805992623,2cyclictest1733716-21kworker/u16:4+events_unbound22:09:386
1490801992624,2cyclictest1942611-21kworker/u16:2+flush-8:022:40:495
1490801992624,2cyclictest1609731-21kworker/u16:4+flush-8:020:42:545
1490801992624,2cyclictest1479726-21kworker/u16:1+flush-8:019:24:385
1490805992523,2cyclictest2073133-21kworker/u16:0+flush-8:000:09:176
1490805992523,2cyclictest2073133-21kworker/u16:0+flush-8:000:00:306
1490805992523,2cyclictest1989149-21kworker/u16:2+events_unbound23:43:506
1490805992523,2cyclictest1989149-21kworker/u16:2+events_unbound23:20:586
1490805992523,2cyclictest1942611-21kworker/u16:2+events_unbound22:49:186
1490805992523,2cyclictest1695369-21kworker/u16:3+events_unbound22:43:016
1490805992523,2cyclictest1608625-21kworker/u16:1+events_unbound21:04:576
1490801992523,2cyclictest1878855-21kworker/u16:0+events_unbound22:53:135
1490801992523,2cyclictest1609731-21kworker/u16:4+events_unbound20:14:335
1490801992523,2cyclictest1224839-21kworker/u16:0+flush-8:019:18:465
1490805992422,2cyclictest1733716-21kworker/u16:4+events_unbound21:42:516
1490805992422,2cyclictest1733716-21kworker/u16:4+events_unbound21:13:466
1490805992422,2cyclictest1695369-21kworker/u16:3+events_unbound22:53:506
1490805992421,3cyclictest1224839-21kworker/u16:0+flush-8:019:54:356
1490801992422,2cyclictest1479726-21kworker/u16:1+events_unbound19:35:465
1490807992322,0cyclictest0-21swapper/723:54:297
1490805992321,2cyclictest2073133-21kworker/u16:0+events_unbound23:35:026
1490805992321,2cyclictest1878855-21kworker/u16:0+events_unbound22:59:306
1490805992317,6cyclictest2100208-21kworker/u16:1+events_unbound00:27:216
1490801992321,2cyclictest2100208-21kworker/u16:1+flush-8:000:30:135
1490801992321,2cyclictest1628388-21kworker/u16:0+events_unbound20:47:535
1490801992321,2cyclictest1452358-21kworker/u16:2+events_unbound19:56:465
22256772220,1sleep40-21swapper/400:34:544
1490805992220,2cyclictest2100208-21kworker/u16:1+events_unbound23:57:306
1490805992220,2cyclictest2051408-21kworker/u16:3+events_unbound23:51:456
1490805992220,2cyclictest1878855-21kworker/u16:0+events_unbound23:02:186
1490805992220,2cyclictest1695369-21kworker/u16:3+events_unbound21:35:516
1490807992113,6cyclictest635-21systemd-journal00:39:347
1490805992119,2cyclictest1989149-21kworker/u16:2+events_unbound23:10:016
1490801992119,2cyclictest1695369-21kworker/u16:3+flush-8:021:05:045
1490801992119,2cyclictest1609731-21kworker/u16:4+events_unbound20:24:555
1490801992119,2cyclictest1609731-21kworker/u16:4+events_unbound20:24:555
1490801992119,2cyclictest1224839-21kworker/u16:0+flush-8:019:47:505
1490796992119,2cyclictest2100208-21kworker/u16:1+events_unbound00:29:494
1490807992019,0cyclictest0-21swapper/722:59:147
1490805992018,2cyclictest2073133-21kworker/u16:0+events_unbound23:48:376
1490805992018,2cyclictest1724657-21kworker/u16:2+events_unbound21:21:106
1490805992018,2cyclictest1695369-21kworker/u16:3+events_unbound22:04:356
1490805992018,2cyclictest1650387-21kworker/u16:2+flush-8:020:39:306
1490801992018,2cyclictest1479726-21kworker/u16:1+events_unbound19:22:505
1490796992016,3cyclictest1845635-21kworker/u16:0+flush-8:022:04:414
1490807991918,0cyclictest0-21swapper/722:35:127
1490805991917,2cyclictest2206382-21kworker/u16:3+events_unbound00:30:506
1490805991917,2cyclictest1989149-21kworker/u16:2+events_unbound23:29:556
1490805991917,2cyclictest1608625-21kworker/u16:1+flush-8:020:44:586
1490801991917,2cyclictest1628388-21kworker/u16:0+events_unbound20:15:225
1490801991917,2cyclictest1452358-21kworker/u16:2+flush-8:019:44:265
1490801991917,2cyclictest1452358-21kworker/u16:2+flush-8:019:44:265
1490801991916,2cyclictest1580868-21kworker/u16:3+flush-8:020:04:535
1490807991817,0cyclictest0-21swapper/723:26:107
1490807991817,0cyclictest0-21swapper/700:05:457
1490807991816,1cyclictest2085768-21ssh23:36:107
1490807991816,1cyclictest0-21swapper/721:42:307
1490807991816,1cyclictest0-21swapper/720:09:367
1490805991816,2cyclictest1695369-21kworker/u16:3+events_unbound21:46:266
1490805991815,3cyclictest1878855-21kworker/u16:0+flush-8:023:04:576
1490805991813,4cyclictest2185809-21cat00:19:516
1490801991816,2cyclictest1628388-21kworker/u16:0+events_unbound20:31:265
1490801991815,2cyclictest1650387-21kworker/u16:2+flush-8:020:34:425
1490807991716,0cyclictest0-21swapper/721:26:587
1490807991716,0cyclictest0-21swapper/719:19:427
1490807991716,0cyclictest0-21swapper/700:27:267
1490807991712,4cyclictest1797237-21latency_hist21:39:367
149080799170,1cyclictest0-21swapper/722:49:597
1490805991715,2cyclictest1608625-21kworker/u16:1+events_unbound20:17:066
1490796991715,2cyclictest1650387-21kworker/u16:2+flush-8:020:39:494
149080799168,7cyclictest6895-21gmain19:29:537
1490807991615,0cyclictest0-21swapper/723:00:507
1490807991615,0cyclictest0-21swapper/722:23:177
1490807991615,0cyclictest0-21swapper/720:44:457
1490807991615,0cyclictest0-21swapper/720:04:317
1490807991614,1cyclictest2170883-21ssh00:11:507
1490807991613,2cyclictest2074750-21ssh23:33:057
149080799160,15cyclictest0-21swapper/719:09:517
149080599160,15cyclictest1882586-21expr22:14:476
1490801991614,2cyclictest1628388-21kworker/u16:0+events_unbound20:54:335
1490801991614,2cyclictest1479726-21kworker/u16:1+events_unbound19:31:475
1490801991614,2cyclictest1224839-21kworker/u16:0+events_unbound19:59:525
1490796991614,2cyclictest1784540-21kworker/u16:0+flush-8:021:50:064
1490796991614,2cyclictest1784540-21kworker/u16:0+flush-8:021:50:064
1490807991514,0cyclictest0-21swapper/723:57:057
1490807991514,0cyclictest0-21swapper/723:43:307
1490807991514,0cyclictest0-21swapper/723:09:427
1490807991514,0cyclictest0-21swapper/722:43:097
1490807991513,1cyclictest1818509-21ssh21:45:037
1490807991513,1cyclictest1725861-21ssh21:09:497
1490807991512,2cyclictest1234-21snmpd21:54:137
1490807991512,2cyclictest1234-21snmpd21:54:137
1490807991511,3cyclictest1234-21snmpd19:54:077
1490805991512,2cyclictest1609731-21kworker/u16:4+flush-8:020:30:016
1490805991512,2cyclictest1609731-21kworker/u16:4+events_unbound20:49:546
149080799149,3cyclictest2138660-21ssh23:59:527
149080799148,5cyclictest1715045-21latency_hist21:04:357
1490807991413,0cyclictest0-21swapper/723:21:377
1490807991413,0cyclictest0-21swapper/722:12:267
1490807991413,0cyclictest0-21swapper/722:04:107
1490807991413,0cyclictest0-21swapper/720:30:127
1490807991412,1cyclictest1783996-21ssh21:32:267
1490807991410,3cyclictest1234-21snmpd20:22:297
1490807991410,2cyclictest1863178-21ssh22:04:557
1490796991413,1cyclictest0-21swapper/422:36:314
149079699140,14cyclictest0-21swapper/423:24:274
149079699140,14cyclictest0-21swapper/422:52:084
149079699140,14cyclictest0-21swapper/421:32:314
149079699140,14cyclictest0-21swapper/421:13:354
149080799139,3cyclictest1234-21snmpd22:27:177
149080799139,3cyclictest1234-21snmpd20:16:227
149080799135,7cyclictest6895-21gmain20:39:497
1490807991310,1cyclictest0-21swapper/719:24:507
149080799130,11cyclictest1234-21snmpd22:15:047
1490805991311,2cyclictest1609731-21kworker/u16:4+flush-8:020:19:516
1490796991312,1cyclictest0-21swapper/423:38:484
1490796991312,1cyclictest0-21swapper/422:23:164
1490796991312,1cyclictest0-21swapper/422:02:284
149079699130,13cyclictest0-21swapper/421:23:314
149080799129,2cyclictest1234-21snmpd21:18:337
149080799129,2cyclictest1234-21snmpd21:06:457
149080799129,2cyclictest0-21swapper/723:04:537
149080799128,3cyclictest1234-21snmpd19:44:017
149080799128,3cyclictest1234-21snmpd19:44:017
149080799126,5cyclictest6958-21gmain19:54:497
1490807991211,0cyclictest0-21swapper/722:29:537
1490807991211,0cyclictest0-21swapper/720:34:577
1490807991210,1cyclictest2181580-21ssh00:15:007
1490807991210,1cyclictest2101059-21ssh23:44:507
1490807991210,1cyclictest1757855-21ssh21:20:007
1490807991210,1cyclictest1724614-21diskmemload00:19:507
1490807991210,1cyclictest0-21swapper/720:54:547
1490807991210,1cyclictest0-21swapper/720:49:517
1490807991210,1cyclictest0-21swapper/719:34:537
1490807991210,1cyclictest0-21swapper/719:14:537
149080799120,10cyclictest1234-21snmpd19:44:557
1490805991210,2cyclictest86-21ksoftirqd/619:54:486
1490805991210,2cyclictest1695369-21kworker/u16:3+events_unbound21:00:006
1490796991211,1cyclictest0-21swapper/423:09:194
1490796991211,1cyclictest0-21swapper/421:42:084
1490796991211,1cyclictest0-21swapper/420:38:264
149080799119,1cyclictest0-21swapper/723:14:497
149080799119,1cyclictest0-21swapper/723:14:497
149080799119,1cyclictest0-21swapper/720:24:477
149080799119,1cyclictest0-21swapper/720:24:477
149080799119,1cyclictest0-21swapper/720:09:537
149080799117,3cyclictest2217356-21ssh00:29:567
149080599118,2cyclictest1609731-21kworker/u16:4+events_unbound20:09:466
149080599116,4cyclictest1524475-21cat19:24:516
1490805991110,1cyclictest0-21swapper/619:09:516
149080199119,2cyclictest1224839-21kworker/u16:0+events_unbound19:53:545
149080599108,2cyclictest1609731-21kworker/u16:4+flush-8:020:25:066
149080599108,2cyclictest1609731-21kworker/u16:4+flush-8:020:25:066
149080599108,2cyclictest1479726-21kworker/u16:1+events_unbound19:34:596
149080599100,2cyclictest1516527-21kthreadcore19:19:536
149079699108,2cyclictest2073133-21kworker/u16:0+flush-8:000:29:234
149079699108,2cyclictest1716057-21fschecks_time21:04:504
149079699106,3cyclictest1882927-21tune2fs22:14:494
149079699106,3cyclictest1834825-21cat21:54:504
14908059995,3cyclictest1553229-21cat19:39:526
14908059995,3cyclictest1553229-21cat19:39:526
14908059990,8cyclictest1667439-21/usr/sbin/munin20:39:596
14908059990,8cyclictest0-21swapper/619:59:516
14907969998,1cyclictest0-21swapper/420:59:244
14907969996,2cyclictest0-21swapper/420:29:544
14907969995,3cyclictest1943677-21cat22:39:514
14907969995,3cyclictest0-21swapper/422:59:564
14907969994,4cyclictest1686635-21/usr/sbin/munin20:49:504
14907969994,4cyclictest1594535-21cut19:59:544
14907969994,4cyclictest1495945-21grep19:09:564
14907969990,8cyclictest1810341-21chrt21:44:494
14908059986,1cyclictest0-21swapper/619:44:546
14908059986,1cyclictest0-21swapper/619:14:476
14908059985,2cyclictest1696225-21/usr/sbin/munin20:54:496
14908059980,1cyclictest0-21swapper/619:29:536
14907969986,1cyclictest0-21swapper/423:29:554
14907969986,1cyclictest0-21swapper/422:29:524
14907969986,1cyclictest0-21swapper/420:09:544
14907969986,1cyclictest0-21swapper/419:44:534
14907969985,2cyclictest1979365-21cpuspeed_turbos22:54:474
14907969984,3cyclictest2164160-21cut00:09:544
14907969984,3cyclictest2112367-21grep23:49:484
14907969984,3cyclictest2090419-21kthreadcore23:39:534
14907969984,3cyclictest1789373-21tr21:34:534
14907969984,3cyclictest1738064-21irqcore21:14:534
14907969984,3cyclictest1526026-21kthreadcore19:24:544
14907969983,4cyclictest2138688-21cat23:59:524
14907969983,4cyclictest2052409-21forks23:24:504
14907969983,4cyclictest2015671-21cat23:09:474
14907969983,4cyclictest1962677-21cut22:44:534
14907969983,4cyclictest1764931-21cut21:24:544
14907969983,4cyclictest1713350-21cut20:59:564
14907969983,4cyclictest1601268-21sed20:04:534
14907969983,4cyclictest1580413-21grep19:50:054
14907969983,4cyclictest1537497-21cut19:29:544
14907969983,4cyclictest1504014-21pmu-power19:14:404
14907969975,1cyclictest2149388-21fschecks_time00:04:484
14907969975,1cyclictest0-21swapper/420:44:534
14907969974,2cyclictest2101466-21kernelversion23:44:514
14907969974,2cyclictest1908326-21kthreadcore22:24:544
14907969973,3cyclictest2173401-21cut00:14:474
14907969973,3cyclictest2125451-21sed23:54:504
14907969973,3cyclictest1638664-21/usr/sbin/munin20:24:494
14907969973,3cyclictest1638664-21/usr/sbin/munin20:24:494
14907969973,3cyclictest1543368-21cut19:34:494
14907969973,3cyclictest1514420-21expr19:19:484
14907969972,4cyclictest2185515-21df00:19:484
14907969972,4cyclictest1629632-21awk20:19:504
14907969972,4cyclictest1581514-21ls19:54:484
14907969972,4cyclictest1553100-21tune2fs19:39:514
14907969972,4cyclictest1553100-21tune2fs19:39:514
14907969970,6cyclictest0-21swapper/423:14:504
14907969970,6cyclictest0-21swapper/423:14:504
14907969950,4cyclictest1627310-21taskset20:14:584
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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