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2026-06-13 - 12:27
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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
Characteristics of the highest latencies:
System rackcslot2.osadl.org (updated Sat Jun 13, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
271472730,1sleep00-21swapper/023:43:550
2638127351,17sleep10-21swapper/119:05:431
2643927259,8sleep00-21swapper/019:06:180
72792700,0sleep00-21swapper/023:16:580
50012650,0sleep00-21swapper/021:46:180
279212650,0sleep10-21swapper/122:17:421
2684999340,11cyclictest0-21swapper/122:28:501
2684999321,26cyclictest0-21swapper/121:38:531
2684999300,29cyclictest0-21swapper/100:36:211
26849992925,0cyclictest0-21swapper/122:26:591
2684899290,2cyclictest0-21swapper/023:12:110
2684999287,16cyclictest24-21ksoftirqd/122:46:431
26849992810,6cyclictest0-21swapper/123:30:031
26849992810,14cyclictest0-21swapper/119:48:571
26849992727,0cyclictest0-21swapper/121:44:031
26849992625,1cyclictest0-21swapper/120:48:121
26848992610,7cyclictest0-21swapper/000:28:530
2684899260,2cyclictest0-21swapper/000:01:290
2684899260,21cyclictest0-21swapper/021:33:290
2684999254,8cyclictest0-21swapper/121:13:561
2684999253,21cyclictest0-21swapper/121:49:001
26849992518,2cyclictest0-21swapper/123:03:051
26849992510,8cyclictest0-21swapper/122:51:251
26849992510,5cyclictest0-21swapper/120:03:561
26849992510,1cyclictest0-21swapper/120:23:121
26848992525,0cyclictest81ktimersoftd/022:56:020
26848992521,2cyclictest81ktimersoftd/022:24:320
26848992510,7cyclictest0-21swapper/000:11:220
26849992419,4cyclictest18030-21apache221:27:181
26849992418,5cyclictest21481-21ssh23:35:401
26849992411,7cyclictest45-21kswapd000:18:531
2684999240,18cyclictest0-21swapper/123:12:241
26848992424,0cyclictest0-21swapper/022:08:550
26848992422,1cyclictest9467-21timerandwakeup21:09:040
26848992410,7cyclictest0-21swapper/021:13:560
2684999236,7cyclictest24431-21/usr/sbin/munin21:28:581
26849992323,0cyclictest0-21swapper/121:11:051
2684999232,10cyclictest0-21swapper/122:05:081
26849992320,0cyclictest0-21swapper/123:52:381
26849992312,3cyclictest26846-21cyclictest00:32:451
2684999231,13cyclictest0-21swapper/100:13:541
2684999230,22cyclictest0-21swapper/122:55:581
2684899239,5cyclictest0-21swapper/021:39:420
2684899236,14cyclictest0-21swapper/020:18:560
26848992315,3cyclictest19750-21taskset22:05:480
26848992310,6cyclictest0-21swapper/021:33:570
2684999222,18cyclictest0-21swapper/122:18:531
26849992220,1cyclictest0-21swapper/120:23:571
26849992216,3cyclictest100350irq/108-eth1-tx22:00:291
2684999221,18cyclictest0-21swapper/120:54:031
26849992211,5cyclictest100250irq/107-eth1-rx23:54:561
26848992210,7cyclictest0-21swapper/023:03:590
26848992210,7cyclictest0-21swapper/022:52:590
1296422210,0sleep10-21swapper/121:57:401
1296422210,0sleep10-21swapper/121:57:401
44422210,0sleep00-21swapper/023:57:030
26849992119,1cyclictest30360-21ntp_kernel_pll_23:03:591
26849992113,5cyclictest15441-21latency_hist20:03:421
26849992110,6cyclictest0-21swapper/123:27:501
26849992110,5cyclictest0-21swapper/120:48:531
26849992110,3cyclictest0-21swapper/119:09:121
26848992115,3cyclictest11754-21/usr/sbin/munin19:53:570
26848992111,7cyclictest0-21swapper/020:08:530
26848992110,6cyclictest0-21swapper/000:35:200
26848992110,5cyclictest0-21swapper/019:34:010
2684899210,8cyclictest2749-21kworker/u4:123:43:120
512822010,0sleep00-21swapper/020:59:000
2684999206,9cyclictest0-21swapper/123:38:561
2684999206,13cyclictest0-21swapper/123:18:531
26849992019,1cyclictest802-21apache220:10:381
26849992017,3cyclictest802-21apache219:57:591
2684999201,16cyclictest0-21swapper/119:16:531
26849992011,5cyclictest100250irq/107-eth1-rx00:25:571
26849992010,7cyclictest0-21swapper/122:38:541
26849992010,4cyclictest0-21swapper/122:38:191
2684899205,9cyclictest0-21swapper/020:13:520
2684899205,11cyclictest0-21swapper/019:08:530
26848992019,1cyclictest0-21swapper/021:48:470
26848992016,3cyclictest18030-21apache221:57:480
26848992016,3cyclictest18030-21apache221:57:480
26848992012,4cyclictest0-21swapper/023:27:210
26848992010,4cyclictest0-21swapper/021:26:500
2684899200,1cyclictest0-21swapper/000:20:110
1720422010,2sleep00-21swapper/000:16:490
2684999194,8cyclictest8056-21diskmemload23:13:581
26849991913,5cyclictest319-21rpcbind23:45:181
26849991910,6cyclictest0-21swapper/121:35:181
26849991910,4cyclictest18030-21apache219:23:151
2684899196,7cyclictest16234-21/usr/sbin/munin20:03:580
26848991918,1cyclictest26846-21cyclictest22:37:050
26848991918,1cyclictest0-21swapper/020:26:240
26848991916,3cyclictest18004-21apache223:20:460
26848991912,4cyclictest1199-21runrttasks22:17:270
26848991911,3cyclictest0-21swapper/022:29:030
26848991910,5cyclictest0-21swapper/019:13:550
26848991910,3cyclictest0-21swapper/023:33:510
26848991910,3cyclictest0-21swapper/019:19:010
26848991910,2cyclictest0-21swapper/019:29:020
115621910,0sleep00-21swapper/023:52:570
346421810,0sleep10-21swapper/119:29:071
2684999184,8cyclictest0-21swapper/120:13:531
2684999183,10cyclictest0-21swapper/100:08:531
26849991810,6cyclictest0-21swapper/100:06:371
26849991810,5cyclictest0-21swapper/120:38:571
26849991810,4cyclictest0-21swapper/120:58:531
26849991810,3cyclictest0-21swapper/121:19:391
2684899187,7cyclictest0-21swapper/020:54:000
2684899186,7cyclictest0-21swapper/019:23:570
26848991818,0cyclictest15197-21munin-node19:46:160
26848991816,1cyclictest10462-21ls19:48:570
26848991810,4cyclictest0-21swapper/022:43:530
26848991810,4cyclictest0-21swapper/022:18:530
26848991810,4cyclictest0-21swapper/021:20:020
26848991810,3cyclictest0-21swapper/019:38:510
26848991810,3cyclictest0-21swapper/000:28:040
26848991810,1cyclictest0-21swapper/021:03:550
542421710,1sleep10-21swapper/119:34:341
2684999175,7cyclictest0-21swapper/119:43:591
2684999173,9cyclictest0-21swapper/123:58:561
2684999173,10cyclictest0-21swapper/120:28:551
26849991712,4cyclictest18030-21apache220:34:001
26849991710,5cyclictest0-21swapper/122:11:521
2684999170,11cyclictest7206-21grep19:39:001
2684899175,9cyclictest0-21swapper/021:58:590
2684899173,6cyclictest18030-21apache220:43:520
2684899173,6cyclictest0-21swapper/022:39:000
2684899171,6cyclictest0-21swapper/022:58:530
26848991712,3cyclictest0-21swapper/023:32:220
26848991710,2cyclictest0-21swapper/000:03:580
1410021710,0sleep00-21swapper/019:58:570
26849991610,4cyclictest0-21swapper/119:28:131
2684899164,8cyclictest0-21swapper/020:38:540
2684899162,4cyclictest28913-21munin-run20:38:420
26848991510,3cyclictest0-21swapper/020:48:520
26848991510,1cyclictest0-21swapper/020:30:410
26849991410,3cyclictest0-21swapper/121:06:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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