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2026-04-08 - 10:22
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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 Wed Apr 08, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1344421050,1sleep113446-21latency_hist23:29:131
2784327148,18sleep00-21swapper/019:08:350
129042710,1sleep10-21swapper/121:13:421
2750726855,8sleep10-21swapper/119:05:041
28084993710,26cyclictest0-21swapper/020:06:160
28085993310,1cyclictest24002-21kworker/u4:021:48:371
28084993210,1cyclictest0-21swapper/000:16:580
28085993110,19cyclictest0-21swapper/120:27:461
28084993010,2cyclictest0-21swapper/023:10:360
28084992910,0cyclictest0-21swapper/021:58:400
28085992828,0cyclictest0-21swapper/121:54:131
2808499280,1cyclictest6489-21sh00:04:250
28085992725,1cyclictest24-21ksoftirqd/123:14:131
28085992610,7cyclictest0-21swapper/119:46:261
28084992625,1cyclictest744-21snmpd23:55:590
28084992619,5cyclictest27546-21rm23:48:420
28084992618,4cyclictest0-21swapper/022:46:400
28084992610,1cyclictest0-21swapper/000:19:380
28085992518,5cyclictest100250irq/107-eth1-rx21:14:311
28084992520,2cyclictest32632-21apache222:33:260
2808499251,1cyclictest0-21swapper/023:22:520
28085992421,1cyclictest770-21irqbalance00:37:231
28085992414,5cyclictest32659-21apache200:00:051
28085992410,7cyclictest100150irq/106-eth1-rx22:22:351
28085992410,12cyclictest0-21swapper/122:24:221
28085992410,11cyclictest0-21swapper/120:32:241
28085992410,10cyclictest0-21swapper/119:14:291
2808599240,15cyclictest0-21swapper/100:04:481
2808599240,14cyclictest0-21swapper/121:49:251
2808499245,18cyclictest0-21swapper/022:15:580
2808499242,5cyclictest0-21swapper/021:04:340
28084992421,3cyclictest32659-21apache221:46:020
28084992410,7cyclictest0-21swapper/022:19:300
28084992410,5cyclictest0-21swapper/021:14:410
28085992318,4cyclictest32659-21apache221:29:291
28085992316,3cyclictest0-21swapper/120:09:011
28085992310,6cyclictest0-21swapper/123:39:271
28085992310,5cyclictest0-21swapper/120:59:251
28085992310,2cyclictest0-21swapper/121:21:471
28084992318,4cyclictest32659-21apache221:26:090
28084992310,9cyclictest0-21swapper/023:30:090
28084992310,4cyclictest0-21swapper/023:39:280
28084992310,4cyclictest0-21swapper/000:25:090
28085992220,1cyclictest24-21ksoftirqd/120:04:131
28085992215,3cyclictest32632-21apache223:57:511
28085992210,8cyclictest0-21swapper/122:56:571
28085992210,0cyclictest0-21swapper/122:39:581
28084992218,2cyclictest28156-21sh23:04:260
28084992216,4cyclictest32659-21apache219:37:530
28084992210,9cyclictest0-21swapper/020:17:370
28084992210,7cyclictest0-21swapper/021:22:450
28084992210,3cyclictest0-21swapper/021:29:190
28084992210,1cyclictest0-21swapper/023:17:510
2808499220,21cyclictest0-21swapper/022:43:500
2808499220,20cyclictest0-21swapper/022:07:060
2950622110,1sleep10-21swapper/119:10:441
2808599216,6cyclictest13265-21apache_processe00:14:231
2808599214,3cyclictest0-21swapper/100:32:451
2808599213,13cyclictest0-21swapper/121:04:311
2808599212,2cyclictest0-21swapper/122:32:031
28085992110,8cyclictest0-21swapper/122:03:181
28085992110,5cyclictest0-21swapper/123:04:271
28085992110,5cyclictest0-21swapper/119:54:251
28085992110,5cyclictest0-21swapper/119:24:251
28085992110,4cyclictest0-21swapper/123:34:531
28085992110,10cyclictest0-21swapper/123:32:591
2808499215,8cyclictest0-21swapper/020:24:280
2808499215,16cyclictest0-21swapper/022:37:100
2808499214,4cyclictest0-21swapper/020:44:240
2808499214,13cyclictest0-21swapper/020:29:290
28084992121,0cyclictest0-21swapper/021:59:270
28084992119,1cyclictest32632-21apache223:28:090
28084992114,7cyclictest0-21swapper/022:24:500
28084992110,3cyclictest0-21swapper/021:51:000
28084992110,10cyclictest0-21swapper/019:56:340
2808599206,4cyclictest7559-21ls22:34:321
28085992020,0cyclictest0-21swapper/121:41:231
28085992018,1cyclictest32659-21apache221:26:541
28085992018,1cyclictest0-21swapper/100:25:051
28085992010,7cyclictest0-21swapper/123:52:361
28085992010,6cyclictest0-21swapper/100:09:231
28085992010,5cyclictest0-21swapper/122:44:261
28085992010,3cyclictest0-21swapper/119:49:321
28085992010,0cyclictest0-21swapper/120:55:001
2808599200,15cyclictest0-21swapper/122:04:301
2808499207,10cyclictest0-21swapper/019:09:270
2808499206,9cyclictest0-21swapper/023:59:260
28084992018,1cyclictest81ktimersoftd/019:44:290
28084992010,7cyclictest0-21swapper/019:29:270
28084992010,4cyclictest0-21swapper/000:29:190
28084992010,2cyclictest0-21swapper/021:12:310
2651922010,0sleep10-21swapper/123:46:271
2978621910,0sleep00-21swapper/000:36:220
2808599193,9cyclictest0-21swapper/123:19:241
2808599193,12cyclictest0-21swapper/120:44:241
2808599192,13cyclictest0-21swapper/123:14:341
28085991911,4cyclictest0-21swapper/100:19:461
28085991910,5cyclictest0-21swapper/119:21:141
28085991910,4cyclictest0-21swapper/122:15:351
28085991910,0cyclictest25747-21unixbench_multi22:59:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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