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2026-04-07 - 09:16
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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 Apr 07, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1285226957,8sleep10-21swapper/119:04:541
18482650,0sleep10-21swapper/122:03:111
1151826553,8sleep00-21swapper/019:04:220
213962380,1sleep10-21swapper/123:59:341
13447993210,0cyclictest0-21swapper/021:27:280
13447993010,15cyclictest0-21swapper/022:59:340
13448992921,6cyclictest24313-21apache221:44:191
1344899280,0cyclictest0-21swapper/120:36:241
13448992727,0cyclictest0-21swapper/120:15:081
13448992719,7cyclictest2244-21apache_processe20:04:251
13447992720,4cyclictest636-21nscd21:59:300
1344799270,4cyclictest744-21snmpd22:51:580
13448992625,1cyclictest0-21swapper/123:02:521
13448992618,5cyclictest24313-21apache222:14:231
1344799262,23cyclictest31425-21grep23:29:260
13447992613,12cyclictest100250irq/107-eth1-rx21:52:380
13447992610,2cyclictest0-21swapper/021:41:450
13448992510,9cyclictest0-21swapper/120:59:321
13447992523,1cyclictest17673-21hddtemp_smartct19:19:270
13447992519,5cyclictest24339-21apache200:38:040
1344799250,1cyclictest4163-21ssh00:21:240
1344899244,17cyclictest27078-21diskmemload00:15:051
13448992414,7cyclictest9438-21ssh22:58:591
13448992410,0cyclictest0-21swapper/123:54:101
13447992410,3cyclictest0-21swapper/021:19:230
13447992410,2cyclictest0-21swapper/000:28:530
1344799240,5cyclictest0-21swapper/023:07:270
13448992322,1cyclictest0-21swapper/120:19:261
13448992322,1cyclictest0-21swapper/120:19:261
1344899230,11cyclictest0-21swapper/119:44:241
13447992323,0cyclictest0-21swapper/021:32:050
13447992321,1cyclictest20987-21munin-run19:29:130
13447992310,7cyclictest0-21swapper/022:24:330
13447992310,5cyclictest0-21swapper/019:54:260
13447992310,5cyclictest0-21swapper/019:14:300
13447992310,0cyclictest0-21swapper/023:45:040
2644422210,0sleep00-21swapper/000:08:010
1909622210,0sleep00-21swapper/023:11:280
1344899223,4cyclictest5428-21cron00:24:131
1344899222,13cyclictest0-21swapper/122:45:511
13448992219,1cyclictest24313-21apache223:31:101
13448992213,6cyclictest24131-21ssh21:49:251
1344899221,13cyclictest0-21swapper/119:49:271
13448992210,9cyclictest0-21swapper/122:07:001
13448992210,8cyclictest0-21swapper/122:28:201
13448992210,6cyclictest0-21swapper/121:19:271
1344899220,8cyclictest0-21swapper/119:54:241
1344799222,16cyclictest0-21swapper/021:18:410
13447992219,2cyclictest24313-21apache221:13:410
13447992218,3cyclictest744-21snmpd00:30:170
13447992217,3cyclictest24313-21apache222:29:520
13447992214,4cyclictest24339-21apache222:39:240
13447992210,6cyclictest0-21swapper/021:56:390
13447992210,4cyclictest0-21swapper/023:19:240
386122110,0sleep00-21swapper/023:34:380
1344899215,11cyclictest0-21swapper/122:39:321
13448992121,0cyclictest0-21swapper/120:28:351
13448992117,3cyclictest24339-21apache221:39:321
13448992115,2cyclictest0-21swapper/123:43:041
13448992110,8cyclictest0-21swapper/121:36:291
13448992110,5cyclictest0-21swapper/123:57:331
13448992110,4cyclictest0-21swapper/120:49:241
13448992110,10cyclictest0-21swapper/122:09:311
13448992110,10cyclictest0-21swapper/100:27:311
13447992121,0cyclictest0-21swapper/022:47:150
13447992110,8cyclictest0-21swapper/023:14:270
30222010,0sleep10-21swapper/121:15:141
279742200,0sleep10-21swapper/100:09:311
1344899205,7cyclictest0-21swapper/119:34:291
1344899202,11cyclictest0-21swapper/121:24:301
13448992020,0cyclictest0-21swapper/122:19:431
13448992011,5cyclictest0-21swapper/123:34:281
13448992010,4cyclictest0-21swapper/100:04:291
13448992010,1cyclictest0-21swapper/122:34:271
13448992010,0cyclictest0-21swapper/120:09:311
1344799202,18cyclictest0-21swapper/022:16:480
13447992015,3cyclictest24313-21apache222:54:140
13447992014,5cyclictest23490-21ssh21:48:250
13447992014,4cyclictest14728-21sh21:34:350
13447992014,1cyclictest15317-21runrttasks23:51:200
13447992013,3cyclictest5089-21ssh22:07:000
13447992010,5cyclictest0-21swapper/022:09:330
13447992010,5cyclictest0-21swapper/000:16:190
555321910,0sleep10-21swapper/122:53:381
2978721910,0sleep00-21swapper/000:12:380
2141621910,0sleep00-21swapper/020:54:240
1848421910,0sleep00-21swapper/023:55:450
1344899199,4cyclictest0-21swapper/123:48:241
1344899194,9cyclictest27965-21ls21:09:291
1344899194,9cyclictest0-21swapper/123:19:311
1344899193,10cyclictest0-21swapper/121:54:281
1344899192,11cyclictest0-21swapper/119:14:261
13448991917,1cyclictest24313-21apache219:23:041
13448991911,5cyclictest24339-21apache223:05:101
13448991910,5cyclictest0-21swapper/119:24:301
13448991910,5cyclictest0-21swapper/100:29:431
13448991910,4cyclictest0-21swapper/121:33:051
13448991910,3cyclictest0-21swapper/120:44:311
1344899190,15cyclictest0-21swapper/122:33:431
1344799193,11cyclictest744-21snmpd22:19:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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