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2025-11-23 - 13:36
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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 all highest latencies:
System rackcslot2.osadl.org (updated Sun Nov 23, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1610327539,31sleep10-21swapper/119:05:231
1577726855,8sleep00-21swapper/019:02:120
16417993315,16cyclictest97950irq/108-eth1-tx21:10:321
16417993110,6cyclictest0-21swapper/123:46:451
1641799300,9cyclictest25154-21chrt21:42:341
16417992910,8cyclictest0-21swapper/122:40:101
16417992910,1cyclictest0-21swapper/120:11:591
16417992910,19cyclictest0-21swapper/121:31:241
1641799290,1cyclictest0-21swapper/122:00:411
1641699290,28cyclictest0-21swapper/023:10:160
1641799280,0cyclictest0-21swapper/100:10:561
1641699280,2cyclictest8806-21ssh22:05:500
16417992723,0cyclictest16737-21ssh22:16:451
16417992710,4cyclictest0-21swapper/119:21:591
16417992710,2cyclictest0-21swapper/123:55:411
16417992710,17cyclictest0-21swapper/100:27:211
16416992720,5cyclictest1964-21apache222:37:030
16417992610,12cyclictest0-21swapper/120:47:051
16416992621,5cyclictest1978-21apache220:42:380
16417992519,3cyclictest1964-21apache223:07:281
16417992510,5cyclictest0-21swapper/121:32:001
16417992410,2cyclictest0-21swapper/120:21:101
16416992424,0cyclictest0-21swapper/022:57:430
1641699241,2cyclictest0-21swapper/023:28:410
16416992410,6cyclictest0-21swapper/019:27:000
16416992410,0cyclictest0-21swapper/021:09:360
1641699240,13cyclictest0-21swapper/019:12:050
1641799236,10cyclictest0-21swapper/123:37:031
1641799234,18cyclictest30004-21diskmemload23:20:151
16417992321,1cyclictest6154-21/usr/sbin/munin23:32:001
16417992321,1cyclictest0-21swapper/121:49:571
16417992318,3cyclictest1964-21apache200:22:031
16417992310,4cyclictest0-21swapper/119:16:571
1641799230,3cyclictest0-21swapper/122:31:431
1641699234,11cyclictest0-21swapper/020:52:010
16416992323,0cyclictest0-21swapper/022:27:040
16416992321,1cyclictest81ktimersoftd/023:44:560
1641699231,5cyclictest0-21swapper/022:20:320
16416992314,9cyclictest97850irq/107-eth1-rx00:19:060
1641799226,12cyclictest0-21swapper/121:37:041
16417992210,9cyclictest0-21swapper/121:22:411
16417992210,8cyclictest15169-21kworker/1:122:03:551
16417992210,6cyclictest0-21swapper/120:01:591
16417992210,5cyclictest0-21swapper/119:37:141
16417992210,4cyclictest0-21swapper/100:31:571
16416992220,1cyclictest1964-21apache221:28:530
16416992215,5cyclictest1978-21apache223:50:250
16416992210,5cyclictest0-21swapper/020:02:000
16416992210,5cyclictest0-21swapper/019:17:010
1641699220,22cyclictest0-21swapper/021:57:410
1641699220,22cyclictest0-21swapper/021:25:330
1641699220,1cyclictest0-21swapper/022:36:170
1641699220,1cyclictest0-21swapper/021:42:180
1641799214,11cyclictest0-21swapper/120:31:591
1641799213,9cyclictest0-21swapper/121:12:021
1641799213,5cyclictest0-21swapper/121:55:241
16417992113,4cyclictest0-21swapper/122:56:571
16417992112,3cyclictest1964-21apache200:01:521
16417992110,5cyclictest0-21swapper/122:42:421
16417992110,5cyclictest0-21swapper/120:23:111
16417992110,4cyclictest0-21swapper/120:37:001
16417992110,1cyclictest0-21swapper/123:06:231
16417992110,10cyclictest0-21swapper/121:17:311
1641799210,12cyclictest30004-21diskmemload23:22:001
1641699214,1cyclictest0-21swapper/023:25:580
16416992117,3cyclictest1978-21apache219:24:480
16416992116,5cyclictest1978-21apache223:40:220
1641699210,4cyclictest0-21swapper/023:13:370
1641799205,3cyclictest30004-21diskmemload23:57:061
1641799204,13cyclictest0-21swapper/120:52:021
1641799203,5cyclictest0-21swapper/122:18:551
16417992019,1cyclictest0-21swapper/119:52:021
16417992016,1cyclictest1978-21apache223:27:421
16417992011,3cyclictest26027-21watchprog-snmpd19:31:541
16417992010,5cyclictest0-21swapper/122:32:051
16417992010,1cyclictest0-21swapper/123:51:451
16417992010,1cyclictest0-21swapper/120:07:051
1641799200,0cyclictest0-21swapper/100:21:241
1641699204,7cyclictest0-21swapper/021:51:590
1641699203,11cyclictest0-21swapper/021:46:590
1641699202,1cyclictest0-21swapper/022:55:440
16416992015,1cyclictest0-21swapper/000:34:120
16416992014,4cyclictest0-21swapper/023:05:510
16416992014,3cyclictest21299-21timerwakeupswit21:37:070
1641799196,8cyclictest0-21swapper/123:12:061
16417991910,4cyclictest0-21swapper/122:51:541
16417991910,4cyclictest0-21swapper/122:10:571
16417991910,3cyclictest0-21swapper/122:25:061
16417991910,3cyclictest0-21swapper/100:13:551
1641699195,6cyclictest0-21swapper/000:11:590
1641699194,9cyclictest0-21swapper/021:01:570
1641699193,8cyclictest0-21swapper/020:22:010
1641699191,5cyclictest0-21swapper/022:11:460
16416991914,1cyclictest0-21swapper/000:22:240
16416991910,6cyclictest0-21swapper/019:34:000
16416991910,5cyclictest0-21swapper/021:17:060
16416991910,4cyclictest0-21swapper/022:46:590
16416991910,3cyclictest0-21swapper/023:57:040
16416991910,3cyclictest0-21swapper/019:42:050
888021810,0sleep00-21swapper/020:11:460
1641799183,8cyclictest0-21swapper/122:50:161
16417991810,2cyclictest0-21swapper/119:26:581
16417991810,2cyclictest0-21swapper/119:06:591
1641699185,8cyclictest0-21swapper/020:57:000
1641699184,7cyclictest15201-21idleruntime20:27:000
1641699183,7cyclictest0-21swapper/023:52:090
16416991814,3cyclictest0-21swapper/022:22:100
16416991814,2cyclictest1964-21apache221:14:050
16416991810,6cyclictest0-21swapper/023:16:560
16416991810,4cyclictest0-21swapper/000:01:500
16416991810,2cyclictest0-21swapper/020:06:590
16416991810,0cyclictest0-21swapper/023:35:240
1571221810,0sleep00-21swapper/022:14:470
1641799174,5cyclictest1111-21runrttasks21:02:091
1641799174,4cyclictest0-21swapper/119:56:581
1641799173,6cyclictest26338-21apache_volume20:56:581
16417991711,3cyclictest1964-21apache220:42:031
1641699176,7cyclictest0-21swapper/019:52:010
1641699173,6cyclictest0-21swapper/020:17:050
1641699172,8cyclictest0-21swapper/019:07:050
16416991715,1cyclictest0-21swapper/021:31:520
16416991710,3cyclictest0-21swapper/020:47:050
16416991710,1cyclictest0-21swapper/000:08:060
1641799163,9cyclictest0-21swapper/119:47:021
1641699165,6cyclictest1978-21apache219:46:570
1641699161,5cyclictest0-21swapper/000:27:580
16416991610,3cyclictest0-21swapper/022:45:210
16416991610,3cyclictest0-21swapper/019:37:010
1626621610,0sleep10-21swapper/120:28:491
1641799152,5cyclictest19217-21tr19:12:041
1641699154,6cyclictest0-21swapper/019:56:580
16416991510,2cyclictest0-21swapper/020:31:470
1641799141,9cyclictest0-21swapper/119:45:571
1641699140,5cyclictest0-21swapper/020:36:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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