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2026-06-27 - 09:58
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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 27, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1380727253,15sleep00-21swapper/019:05:150
271782700,1sleep00-21swapper/000:02:570
1400826958,7sleep10-21swapper/119:07:211
14306993939,0cyclictest0-21swapper/122:40:071
14306993310,4cyclictest0-21swapper/122:15:221
14305993011,14cyclictest100350irq/108-eth1-tx22:27:020
1430699295,8cyclictest27878-21diskmemload21:48:461
14306992828,0cyclictest0-21swapper/123:27:101
14306992725,1cyclictest7223-21apache_accesses21:23:471
1430699271,25cyclictest0-21swapper/121:54:271
14305992710,11cyclictest0-21swapper/022:49:520
1430699260,4cyclictest3893-21ssh22:46:051
14305992621,3cyclictest9714-21apache221:08:570
1430699255,12cyclictest0-21swapper/119:58:451
14306992520,3cyclictest9701-21apache219:54:541
14306992517,5cyclictest9714-21apache223:11:241
14305992525,0cyclictest0-21swapper/023:10:260
1430699242,8cyclictest0-21swapper/123:40:491
14306992424,0cyclictest0-21swapper/122:25:551
14306992422,1cyclictest0-21swapper/122:19:571
1430699242,18cyclictest0-21swapper/120:03:451
14306992410,8cyclictest22095-21ssh21:43:471
1430599244,18cyclictest0-21swapper/021:03:520
1430699235,12cyclictest0-21swapper/100:23:481
14306992316,5cyclictest100150irq/106-eth1-rx21:35:511
14306992314,6cyclictest9701-21apache222:31:061
14306992310,7cyclictest0-21swapper/100:09:111
14306992310,4cyclictest0-21swapper/122:37:451
1430599232,20cyclictest0-21swapper/021:38:500
14305992320,0cyclictest0-21swapper/022:54:530
14305992317,2cyclictest9701-21apache221:22:440
1597822210,0sleep10-21swapper/100:35:421
14306992219,2cyclictest9714-21apache223:14:211
14306992210,9cyclictest0-21swapper/123:03:391
14306992210,8cyclictest0-21swapper/100:04:211
14306992210,4cyclictest0-21swapper/122:00:381
1430699220,4cyclictest0-21swapper/123:38:091
1430599223,3cyclictest32408-21hddtemp_smartct21:13:480
14305992220,1cyclictest7-21ksoftirqd/019:13:340
14305992220,1cyclictest0-21swapper/022:34:150
1430599221,2cyclictest30928-21/usr/sbin/munin23:23:460
1430599221,20cyclictest0-21swapper/021:46:570
14305992210,9cyclictest3964-1kworker/u5:000:17:330
14305992210,5cyclictest0-21swapper/000:08:450
1430599220,1cyclictest0-21swapper/000:27:270
959622110,1sleep00-21swapper/022:08:580
2353322110,0sleep10-21swapper/119:31:211
1829322110,0sleep00-21swapper/022:21:280
1430699215,9cyclictest0-21swapper/123:58:551
1430699212,18cyclictest0-21swapper/122:08:461
1430699211,9cyclictest0-21swapper/119:18:451
14306992119,1cyclictest636-21nscd19:48:531
14306992111,6cyclictest0-21swapper/121:08:531
14306992110,4cyclictest0-21swapper/121:38:541
14306992110,1cyclictest0-21swapper/123:57:361
1430599218,11cyclictest0-21swapper/023:38:480
14305992119,1cyclictest1-21systemd20:33:300
14305992116,4cyclictest9714-21apache222:28:550
14305992114,6cyclictest100150irq/106-eth1-rx23:07:460
1430599211,3cyclictest0-21swapper/000:35:320
14305992110,6cyclictest0-21swapper/021:58:460
14305992110,4cyclictest0-21swapper/022:06:070
14305992110,4cyclictest0-21swapper/000:03:510
1764922010,0sleep00-21swapper/021:37:190
1430699206,13cyclictest0-21swapper/119:13:491
1430699205,10cyclictest0-21swapper/119:38:471
14306992019,1cyclictest231ktimersoftd/123:49:301
14306992010,7cyclictest0-21swapper/100:18:511
14306992010,5cyclictest0-21swapper/123:18:461
1430599203,9cyclictest0-21swapper/019:18:460
1430599203,16cyclictest0-21swapper/019:33:540
1430599203,11cyclictest0-21swapper/020:54:310
1430599202,5cyclictest0-21swapper/019:28:520
14305992018,1cyclictest4963-21apache_accesses20:08:450
14305992010,8cyclictest28411-21sh21:51:290
14305992010,3cyclictest0-21swapper/023:13:500
843821910,0sleep10-21swapper/122:52:561
760621910,0sleep10-21swapper/122:07:411
1430699192,6cyclictest0-21swapper/122:53:511
14306991919,0cyclictest0-21swapper/123:29:231
14306991911,5cyclictest0-21swapper/120:38:461
14306991910,7cyclictest0-21swapper/123:45:071
14306991910,6cyclictest0-21swapper/119:43:471
14306991910,2cyclictest0-21swapper/120:28:481
14306991910,1cyclictest0-21swapper/122:59:111
1430599193,10cyclictest0-21swapper/021:53:500
14305991914,3cyclictest744-21snmpd23:55:150
14305991910,8cyclictest0-21swapper/022:45:540
14305991910,5cyclictest0-21swapper/021:30:530
14305991910,5cyclictest0-21swapper/000:18:510
14305991910,0cyclictest0-21swapper/022:39:440
855721810,1sleep00-21swapper/020:17:550
1873321810,0sleep00-21swapper/023:50:380
1587221810,0sleep10-21swapper/119:11:321
1430699189,5cyclictest0-21swapper/121:18:441
1430699182,11cyclictest0-21swapper/100:28:541
14306991813,0cyclictest0-21swapper/121:17:071
14306991812,1cyclictest160832sleep120:35:461
1430599185,10cyclictest0-21swapper/020:03:540
1430599184,6cyclictest0-21swapper/020:43:530
1430599184,12cyclictest0-21swapper/000:28:460
1430599183,10cyclictest0-21swapper/023:33:510
14305991817,0cyclictest9714-21apache222:18:140
14305991811,3cyclictest0-21swapper/020:58:500
14305991811,3cyclictest0-21swapper/020:38:530
14305991810,5cyclictest0-21swapper/020:23:480
14305991810,4cyclictest0-21swapper/019:23:510
14305991810,3cyclictest0-21swapper/023:19:540
14305991810,3cyclictest0-21swapper/021:23:500
14305991810,2cyclictest0-21swapper/019:58:470
880321710,0sleep10-21swapper/120:18:421
1430699173,7cyclictest0-21swapper/120:48:501
14306991711,2cyclictest0-21swapper/119:33:511
1430599174,7cyclictest0-21swapper/019:38:460
14305991715,2cyclictest744-21snmpd19:17:570
14305991711,4cyclictest1199-21runrttasks20:22:000
14305991711,3cyclictest100150irq/106-eth1-rx23:45:440
14305991710,3cyclictest3341-21ls23:28:530
14305991710,1cyclictest0-21swapper/022:59:200
1430699165,7cyclictest0-21swapper/120:08:461
1430699165,6cyclictest0-21swapper/120:53:481
1430699162,7cyclictest0-21swapper/121:28:521
14306991610,3cyclictest0-21swapper/120:58:451
14306991610,3cyclictest0-21swapper/120:13:521
14306991610,2cyclictest0-21swapper/120:43:461
14306991610,2cyclictest0-21swapper/119:23:471
1430599168,4cyclictest0-21swapper/019:48:530
1430599163,3cyclictest21654-21/usr/sbin/munin20:48:540
14305991614,1cyclictest16004-21sshd20:34:550
1430599160,13cyclictest0-21swapper/019:55:230
14306991510,3cyclictest0-21swapper/120:24:241
14306991510,2cyclictest0-21swapper/100:13:471
1430599151,5cyclictest7-21ksoftirqd/019:43:500
1430699143,6cyclictest0-21swapper/121:03:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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