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2026-06-09 - 20:22
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Tue Jun 09, 2026 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
49242700,1sleep10-21swapper/108:44:051
3126027057,8sleep00-21swapper/007:04:170
3141926955,9sleep10-21swapper/107:05:581
165602690,0sleep10-21swapper/109:12:131
31868992929,0cyclictest0-21swapper/012:07:490
31868992929,0cyclictest0-21swapper/011:49:490
31869992823,4cyclictest231ktimersoftd/110:08:541
3186999280,22cyclictest0-21swapper/107:13:441
31869992726,1cyclictest0-21swapper/107:14:391
3186999272,19cyclictest100250irq/107-eth1-rx11:06:141
31869992710,2cyclictest12185-21kworker/u4:010:45:211
31868992710,3cyclictest0-21swapper/011:46:440
31869992622,3cyclictest0-21swapper/112:14:371
31869992610,1cyclictest0-21swapper/112:08:071
31869992610,1cyclictest0-21swapper/111:53:131
3186999252,10cyclictest0-21swapper/109:03:551
31869992510,12cyclictest0-21swapper/110:43:071
31868992521,3cyclictest24397-21timerandwakeup10:04:060
31869992419,3cyclictest24791-21rm09:23:401
31868992418,3cyclictest9324-21apache211:26:070
31869992321,1cyclictest28191-21ssh12:19:481
31869992316,5cyclictest9324-21apache211:41:271
31868992310,9cyclictest0-21swapper/012:24:270
31868992310,9cyclictest0-21swapper/010:54:460
31868992310,6cyclictest0-21swapper/007:43:550
3186999226,9cyclictest0-21swapper/111:58:571
3186999224,10cyclictest0-21swapper/107:54:041
3186999221,20cyclictest0-21swapper/109:46:511
3186999221,18cyclictest0-21swapper/110:49:041
31869992210,7cyclictest0-21swapper/108:54:051
3186899225,11cyclictest0-21swapper/008:13:570
31868992222,0cyclictest0-21swapper/009:48:240
31868992222,0cyclictest0-21swapper/008:39:120
31868992221,0cyclictest0-21swapper/007:28:550
31868992210,7cyclictest100250irq/107-eth1-rx12:38:110
31868992210,3cyclictest0-21swapper/009:18:560
31868992210,3cyclictest0-21swapper/007:08:590
31868992210,2cyclictest0-21swapper/012:18:570
31868992210,2cyclictest0-21swapper/010:23:360
31868992210,11cyclictest0-21swapper/010:31:260
3186999214,7cyclictest0-21swapper/111:53:581
31869992121,0cyclictest100250irq/107-eth1-rx10:06:461
3186999212,10cyclictest0-21swapper/108:23:551
31869992117,3cyclictest744-21snmpd08:12:441
31869992112,5cyclictest10865-1kworker/u5:010:31:311
31869992110,6cyclictest0-21swapper/111:23:271
31869992110,2cyclictest0-21swapper/111:12:411
3186999210,2cyclictest0-21swapper/109:39:041
3186899216,4cyclictest0-21swapper/012:14:040
3186899212,11cyclictest0-21swapper/008:29:060
3186899212,10cyclictest13375-21diskmemload09:14:030
31868992121,0cyclictest0-21swapper/008:58:110
31868992110,8cyclictest0-21swapper/007:49:020
31868992110,7cyclictest0-21swapper/011:00:300
31868992110,6cyclictest0-21swapper/012:02:520
31868992110,6cyclictest0-21swapper/009:25:180
31868992110,5cyclictest0-21swapper/010:14:290
31868992110,5cyclictest0-21swapper/009:39:180
3186899210,15cyclictest0-21swapper/009:10:280
3186999208,11cyclictest0-21swapper/112:23:571
3186999205,9cyclictest0-21swapper/107:44:001
3186999203,13cyclictest0-21swapper/108:38:551
3186999203,12cyclictest0-21swapper/108:34:011
31869992018,1cyclictest9295-21apache210:14:401
31869992011,2cyclictest24-21ksoftirqd/110:23:541
31869992010,6cyclictest15616-21/usr/sbin/munin09:54:031
31869992010,5cyclictest0-21swapper/109:58:571
31869992010,5cyclictest0-21swapper/108:14:021
31869992010,4cyclictest0-21swapper/108:04:051
31868992015,4cyclictest9324-21apache208:38:440
31868992015,3cyclictest100250irq/107-eth1-rx11:34:490
31868992010,4cyclictest0-21swapper/010:51:240
31868992010,3cyclictest0-21swapper/011:08:550
2221422010,0sleep00-21swapper/012:12:580
1008622010,0sleep00-21swapper/011:55:370
3186999198,10cyclictest0-21swapper/110:53:541
3186999194,7cyclictest18385-21/usr/sbin/munin09:14:011
3186999194,11cyclictest0-21swapper/107:39:041
3186999192,7cyclictest0-21swapper/107:48:571
31869991918,1cyclictest0-21swapper/111:16:341
3186999191,12cyclictest0-21swapper/111:33:561
3186999191,12cyclictest0-21swapper/110:19:031
31869991910,7cyclictest0-21swapper/109:49:161
31869991910,5cyclictest0-21swapper/112:37:331
31869991910,4cyclictest0-21swapper/110:33:591
31869991910,0cyclictest0-21swapper/109:30:151
3186999190,18cyclictest0-21swapper/111:23:581
3186899192,5cyclictest0-21swapper/010:48:270
31868991910,8cyclictest0-21swapper/011:30:190
31868991910,4cyclictest0-21swapper/007:33:550
31868991910,3cyclictest0-21swapper/007:54:010
31868991910,2cyclictest81ktimersoftd/008:58:550
31868991910,2cyclictest0-21swapper/009:58:550
31868991910,0cyclictest0-21swapper/009:37:360
3186999182,13cyclictest0-21swapper/112:09:061
31869991810,5cyclictest0-21swapper/109:03:081
31869991810,1cyclictest0-21swapper/111:30:351
3186999180,12cyclictest0-21swapper/111:44:331
3186899184,8cyclictest0-21swapper/009:51:130
3186899184,8cyclictest0-21swapper/007:13:550
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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