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2026-04-09 - 07:38
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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 Thu Apr 09, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
278327246,21sleep00-21swapper/019:06:310
267927057,8sleep10-21swapper/119:05:261
193462660,1sleep10-21swapper/121:11:291
240402630,0sleep10-21swapper/122:47:581
296082610,0sleep00-21swapper/021:24:440
3224993510,17cyclictest0-21swapper/100:09:571
3223993310,22cyclictest0-21swapper/023:30:370
3224992929,0cyclictest0-21swapper/119:29:421
3224992811,17cyclictest17932-21kworker/1:000:16:381
322399280,24cyclictest0-21swapper/021:19:330
3223992725,1cyclictest20412-21awk19:54:130
3223992711,1cyclictest24110-21kworker/u4:100:37:140
3223992710,1cyclictest0-21swapper/022:05:460
3224992620,2cyclictest231ktimersoftd/120:34:251
3224992610,3cyclictest0-21swapper/121:49:051
3223992610,15cyclictest0-21swapper/019:29:310
3224992525,0cyclictest0-21swapper/122:57:311
3224992521,1cyclictest13092-21kworker/1:020:09:081
3223992524,1cyclictest4735-21apache221:39:270
3223992519,2cyclictest81ktimersoftd/023:26:460
3223992510,0cyclictest0-21swapper/022:24:550
3224992418,5cyclictest6609-21sleep23:14:081
3224992414,6cyclictest0-21swapper/121:19:421
322499240,1cyclictest32110-21apache_accesses22:59:261
3223992424,0cyclictest0-21swapper/023:57:440
3223992410,8cyclictest0-21swapper/021:14:080
322399240,23cyclictest0-21swapper/000:30:160
3224992311,8cyclictest32346-21http_loadtime22:14:261
3224992310,6cyclictest0-21swapper/121:29:271
3224992310,1cyclictest0-21swapper/100:23:101
3224992310,11cyclictest0-21swapper/121:19:101
322399233,18cyclictest3188-21/usr/sbin/munin22:19:290
3223992323,0cyclictest0-21swapper/019:41:020
3223992322,0cyclictest0-21swapper/020:54:270
3223992321,1cyclictest0-21swapper/023:22:110
3223992310,6cyclictest0-21swapper/023:04:170
3223992310,5cyclictest0-21swapper/023:50:070
3223992310,5cyclictest0-21swapper/000:28:340
3224992212,5cyclictest0-21swapper/119:24:251
3224992211,8cyclictest100150irq/106-eth1-rx22:07:151
3224992211,6cyclictest100250irq/107-eth1-rx22:49:251
3224992210,7cyclictest0-21swapper/120:59:251
3224992210,7cyclictest0-21swapper/120:09:331
3224992210,5cyclictest0-21swapper/123:04:231
3223992218,3cyclictest22374-21diskmemload21:14:490
3223992215,6cyclictest4735-21apache223:15:160
3223992211,5cyclictest6993-21perf19:19:130
322399221,14cyclictest13424-21taskset21:48:130
3223992210,7cyclictest0-21swapper/020:24:310
3223992210,4cyclictest0-21swapper/022:54:250
3223992210,2cyclictest0-21swapper/023:38:380
3224992121,0cyclictest0-21swapper/121:28:041
3224992120,1cyclictest4726-21apache200:24:331
3224992120,1cyclictest0-21swapper/119:21:011
3224992118,2cyclictest3221-21cyclictest20:24:451
3224992110,4cyclictest0-21swapper/100:34:281
322399213,8cyclictest32442-21hddtemp_smartct23:44:260
322399212,10cyclictest0-21swapper/021:59:310
3223992117,3cyclictest0-21swapper/023:02:380
322399211,6cyclictest16847-21diskmemload23:09:230
322399210,3cyclictest0-21swapper/021:32:370
322499207,6cyclictest0-21swapper/121:39:251
322499206,9cyclictest0-21swapper/122:09:531
322499206,10cyclictest0-21swapper/100:04:231
322499202,12cyclictest0-21swapper/100:29:251
3224992018,1cyclictest4735-21apache221:38:471
3224992016,2cyclictest4726-21apache222:23:321
3224992010,6cyclictest0-21swapper/122:01:491
3224992010,5cyclictest0-21swapper/122:43:521
3224992010,3cyclictest0-21swapper/123:35:371
3224992010,10cyclictest0-21swapper/122:27:431
322499200,1cyclictest0-21swapper/123:48:171
322399204,7cyclictest14656-21munin-run19:39:130
322399202,11cyclictest13927-21ssh22:34:150
3223992010,7cyclictest0-21swapper/019:13:030
3223992010,5cyclictest0-21swapper/021:49:450
3223992010,3cyclictest0-21swapper/020:34:190
3223992010,3cyclictest0-21swapper/000:09:230
3223992010,0cyclictest0-21swapper/021:34:390
880421910,0sleep00-21swapper/020:45:250
3224991916,1cyclictest0-21swapper/123:25:511
3224991912,4cyclictest3221-21cyclictest20:30:081
3224991912,4cyclictest0-21swapper/119:59:281
3224991910,4cyclictest0-21swapper/119:39:291
3224991910,3cyclictest5667-21ssh23:51:521
322499190,15cyclictest0-21swapper/119:34:331
322399197,6cyclictest0-21swapper/022:09:330
322399197,10cyclictest0-21swapper/020:19:280
322399193,9cyclictest0-21swapper/020:14:280
322399191,8cyclictest0-21swapper/021:54:230
3223991916,2cyclictest3221-21cyclictest23:59:530
3223991910,6cyclictest0-21swapper/023:39:260
3223991910,6cyclictest0-21swapper/022:47:420
3223991910,4cyclictest0-21swapper/020:49:240
3223991910,3cyclictest0-21swapper/022:52:100
3223991910,3cyclictest0-21swapper/019:54:280
3223991910,0cyclictest0-21swapper/000:15:430
322399190,2cyclictest0-21swapper/022:14:230
322499184,6cyclictest0-21swapper/120:19:291
322499183,8cyclictest0-21swapper/123:39:221
3224991811,3cyclictest100150irq/106-eth1-rx21:49:451
322499181,11cyclictest0-21swapper/119:54:271
3224991810,4cyclictest0-21swapper/119:49:231
3224991810,3cyclictest0-21swapper/123:33:391
3224991810,3cyclictest0-21swapper/123:19:331
322399186,4cyclictest15777-21ls21:04:280
322399183,10cyclictest0-21swapper/020:33:060
3223991816,1cyclictest4726-21apache219:47:470
3223991812,3cyclictest0-21swapper/022:39:590
3223991810,5cyclictest0-21swapper/022:29:130
3223991810,4cyclictest0-21swapper/000:04:460
3223991810,3cyclictest0-21swapper/019:59:230
3223991810,2cyclictest0-21swapper/019:24:250
987421710,0sleep10-21swapper/123:58:251
322499172,7cyclictest0-21swapper/123:14:451
322499171,7cyclictest0-21swapper/123:59:311
3224991716,1cyclictest4726-21apache219:44:361
3224991712,2cyclictest0-21swapper/119:09:221
3224991710,5cyclictest0-21swapper/120:54:261
3224991710,4cyclictest0-21swapper/121:57:111
3224991710,3cyclictest0-21swapper/121:04:231
322499170,1cyclictest0-21swapper/122:31:131
3223991716,0cyclictest4735-21apache221:01:170
3223991713,2cyclictest4726-21apache220:09:050
3223991710,4cyclictest0-21swapper/000:19:240
3223991710,3cyclictest0-21swapper/019:19:270
3223991710,1cyclictest0-21swapper/020:43:090
3224991615,1cyclictest0-21swapper/120:44:131
322499161,2cyclictest14652-21/usr/sbin/munin22:34:291
3223991610,1cyclictest0-21swapper/020:09:260
322499154,9cyclictest0-21swapper/119:14:291
3224991510,4cyclictest0-21swapper/120:39:271
322499145,4cyclictest0-21swapper/120:14:271
3224991310,2cyclictest0-21swapper/120:51:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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