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2026-08-07 - 14:56
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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 Fri Aug 07, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2087626755,8sleep10-21swapper/119:07:461
2063926655,7sleep00-21swapper/019:05:180
201842640,0sleep10-21swapper/122:57:091
21100993321,12cyclictest0-21swapper/123:01:411
21100993131,0cyclictest0-21swapper/120:15:021
21100993010,19cyclictest2308-21diskmemload23:24:091
21099993010,4cyclictest0-21swapper/000:35:090
21100992722,3cyclictest11520-21apache221:50:311
21099992725,1cyclictest0-21swapper/022:21:360
21099992710,14cyclictest0-21swapper/023:57:440
2110099260,25cyclictest0-21swapper/100:28:471
21099992610,9cyclictest0-21swapper/023:36:340
2109999260,26cyclictest16951-21ssh00:19:180
2110099254,19cyclictest23523-21/usr/sbin/munin22:18:261
21100992520,3cyclictest11520-21apache223:50:081
21100992515,8cyclictest24-21ksoftirqd/123:22:121
21100992513,12cyclictest0-21swapper/122:34:451
2110099251,23cyclictest0-21swapper/122:13:251
21100992512,11cyclictest100350irq/108-eth1-tx23:10:241
21100992510,7cyclictest0-21swapper/122:48:151
21099992519,5cyclictest11520-21apache220:57:080
2109999250,4cyclictest0-21swapper/022:03:270
21100992424,0cyclictest0-21swapper/123:30:291
2110099241,0cyclictest0-21swapper/122:45:571
2110099240,23cyclictest0-21swapper/122:06:031
21099992411,5cyclictest0-21swapper/022:33:500
21099992410,9cyclictest0-21swapper/022:53:250
2110099236,13cyclictest0-21swapper/121:58:231
21100992318,4cyclictest11494-21apache220:09:281
21100992310,11cyclictest0-21swapper/100:23:271
2110099230,15cyclictest0-21swapper/100:13:271
21099992322,1cyclictest0-21swapper/023:26:250
2109999232,20cyclictest11443-21perl23:28:250
21099992318,3cyclictest100250irq/107-eth1-rx23:21:450
21099992314,7cyclictest11494-21apache221:24:160
2109999231,2cyclictest0-21swapper/022:48:030
21099992310,6cyclictest0-21swapper/019:58:260
21099992310,5cyclictest0-21swapper/022:30:560
21099992310,1cyclictest0-21swapper/022:51:200
2110099227,11cyclictest5075-21ssh21:10:521
2110099224,9cyclictest0-21swapper/120:28:261
2110099224,2cyclictest5273-21tune2fs00:03:271
2110099222,4cyclictest0-21swapper/121:42:111
21100992222,0cyclictest0-21swapper/123:04:491
21100992217,5cyclictest0-21swapper/122:25:191
21100992216,4cyclictest0-21swapper/119:43:241
21100992214,6cyclictest11520-21apache221:24:361
21100992210,8cyclictest0-21swapper/121:28:311
21100992210,7cyclictest0-21swapper/123:55:371
21100992210,7cyclictest0-21swapper/120:48:251
2110099220,2cyclictest0-21swapper/121:14:201
21099992222,0cyclictest0-21swapper/020:10:360
21099992219,2cyclictest0-21swapper/021:54:390
21099992210,5cyclictest0-21swapper/021:29:060
2109999220,14cyclictest0-21swapper/000:24:060
2110099216,10cyclictest0-21swapper/120:53:271
21100992117,2cyclictest11494-21apache220:04:501
21100992115,4cyclictest0-21swapper/121:56:001
21100992111,6cyclictest0-21swapper/100:08:231
21100992110,6cyclictest0-21swapper/100:34:491
21100992110,5cyclictest0-21swapper/121:33:281
21100992110,4cyclictest0-21swapper/120:20:311
21099992110,6cyclictest0-21swapper/020:33:280
21099992110,6cyclictest0-21swapper/000:12:510
21099992110,5cyclictest0-21swapper/021:20:470
21099992110,4cyclictest0-21swapper/023:40:580
21099992110,3cyclictest0-21swapper/021:50:350
645822010,0sleep00-21swapper/000:03:590
2110099201,9cyclictest3183-21runrttasks23:17:511
21100992016,3cyclictest0-21swapper/123:38:151
21100992012,2cyclictest11520-21apache200:00:581
2110099201,10cyclictest0-21swapper/122:08:301
21100992010,9cyclictest0-21swapper/120:45:291
2109999203,10cyclictest0-21swapper/022:58:270
2109999202,7cyclictest0-21swapper/023:58:240
21099992018,1cyclictest11494-21apache223:16:200
21099992015,4cyclictest81ktimersoftd/021:47:290
21099992015,4cyclictest11494-21apache222:01:430
21099992010,6cyclictest0-21swapper/020:48:180
21099992010,6cyclictest0-21swapper/000:30:220
21099992010,6cyclictest0-21swapper/000:17:350
2109999200,20cyclictest0-21swapper/021:17:040
2110099199,6cyclictest0-21swapper/120:23:311
2110099192,16cyclictest0-21swapper/123:34:071
21100991912,6cyclictest11520-21apache221:18:171
21100991910,4cyclictest0-21swapper/119:38:241
2110099190,11cyclictest0-21swapper/121:43:271
2109999195,9cyclictest0-21swapper/023:08:300
21099991917,2cyclictest0-21swapper/019:14:160
21099991914,4cyclictest11520-21apache222:38:560
21099991912,4cyclictest23340-21apache_accesses20:38:230
21099991910,7cyclictest0-21swapper/019:45:490
21099991910,5cyclictest0-21swapper/023:47:420
21099991910,4cyclictest0-21swapper/019:28:310
21099991910,1cyclictest0-21swapper/020:18:270
2110099183,11cyclictest0-21swapper/120:33:331
2110099182,10cyclictest0-21swapper/122:38:301
2109999187,2cyclictest0-21swapper/023:03:290
2109999181,2cyclictest0-21swapper/022:15:090
21099991810,6cyclictest0-21swapper/022:13:060
21099991810,4cyclictest0-21swapper/020:58:260
21099991810,2cyclictest0-21swapper/019:23:300
2110099174,9cyclictest0-21swapper/122:28:251
2110099172,6cyclictest23038-21/usr/sbin/munin19:13:251
21100991715,1cyclictest0-21swapper/120:58:311
21100991711,5cyclictest0-21swapper/121:06:511
21100991710,5cyclictest11494-21apache219:28:281
21100991710,5cyclictest0-21swapper/119:52:381
21100991710,4cyclictest0-21swapper/123:46:311
21100991710,4cyclictest0-21swapper/120:38:241
21100991710,4cyclictest0-21swapper/119:58:001
21100991710,2cyclictest0-21swapper/119:58:341
21100991710,2cyclictest0-21swapper/100:18:141
2109999179,5cyclictest0-21swapper/019:08:310
2109999176,8cyclictest0-21swapper/022:23:300
2109999174,7cyclictest21853-21diskstats21:33:260
2109999174,7cyclictest0-21swapper/019:18:250
2109999172,8cyclictest0-21swapper/019:48:290
21099991710,6cyclictest0-21swapper/020:04:410
21099991710,4cyclictest0-21swapper/021:40:450
21099991710,4cyclictest0-21swapper/021:12:160
21099991710,3cyclictest0-21swapper/023:49:530
21099991710,3cyclictest0-21swapper/020:23:240
21100991611,3cyclictest0-21swapper/119:33:241
2109999163,9cyclictest0-21swapper/019:38:240
2109999162,5cyclictest0-21swapper/020:32:390
21099991611,2cyclictest100250irq/107-eth1-rx20:13:260
21099991610,6cyclictest0-21swapper/019:53:290
21100991510,1cyclictest0-21swapper/119:08:291
2109999155,4cyclictest0-21swapper/019:33:290
2109999153,6cyclictest0-21swapper/020:43:250
2109999150,7cyclictest0-21swapper/021:03:290
2110099144,4cyclictest27573-21/usr/sbin/munin19:23:301
2110099143,7cyclictest0-21swapper/119:18:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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