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2026-03-15 - 10:17
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackeslot8.osadl.org (updated Sun Mar 15, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136654321130,2sleep1321rcuc/121:20:141
16007922790,1sleep1321rcuc/100:25:171
1196622993532,1cyclictest0-21swapper/323:10:003
1196622992926,1cyclictest0-21swapper/322:10:013
1196622992522,1cyclictest0-21swapper/300:35:013
1196622992421,1cyclictest0-21swapper/321:15:003
1196622992421,1cyclictest0-21swapper/300:40:003
1196622992320,1cyclictest0-21swapper/322:40:003
119662299220,18cyclictest1376544-21turbostat21:30:003
1196622992118,1cyclictest0-21swapper/300:25:013
1196622992017,1cyclictest0-21swapper/322:59:593
1196622992017,1cyclictest0-21swapper/322:05:003
119662299198,7cyclictest1535859-21turbostat23:34:593
1196622991815,1cyclictest0-21swapper/321:30:213
1196622991815,1cyclictest0-21swapper/321:30:203
119662299181,12cyclictest1561379-21taskset23:55:013
119662299181,12cyclictest1453222-21taskset22:30:013
15927842171,8sleep11592850-21munin-run00:20:011
15552822171,5sleep01555396-21/usr/sbin/munin23:50:140
1196622991714,1cyclictest0-21swapper/322:35:013
1196622991714,1cyclictest0-21swapper/322:20:163
1196622991714,1cyclictest0-21swapper/321:20:003
1196622991714,1cyclictest0-21swapper/319:55:173
1196622991714,1cyclictest0-21swapper/319:35:143
119662299171,13cyclictest1243541-21taskset19:45:143
119662299171,12cyclictest1529184-21taskset23:25:283
119662299171,12cyclictest1396009-21taskset21:45:013
119662299171,12cyclictest1306581-21turbostat20:35:003
119662299171,12cyclictest1293667-21turbostat20:25:013
119662299171,12cyclictest1222247-21taskset19:25:193
307598160,2rtkit-daemon0-21swapper/121:59:481
119662299167,6cyclictest13193072sleep320:42:223
1196622991613,1cyclictest0-21swapper/323:15:233
1196622991613,1cyclictest0-21swapper/321:35:163
1196622991613,1cyclictest0-21swapper/319:15:193
119662299161,12cyclictest1605338-21taskset00:28:463
119662299161,12cyclictest1579761-21chrt00:05:313
119662299161,12cyclictest1560293-21taskset23:50:203
119662299161,12cyclictest1517708-21taskset23:20:153
119662299161,12cyclictest1510149-21taskset23:14:173
119662299161,12cyclictest1497294-21chrt23:04:443
119662299161,12cyclictest1433818-21taskset22:12:413
119662299161,12cyclictest1408457-21taskset21:52:103
119662299161,12cyclictest1402277-21chrt21:48:583
119662299161,12cyclictest1370017-21taskset21:22:483
119662299161,12cyclictest1299785-21taskset20:27:383
119662299161,12cyclictest1287094-21taskset20:17:043
119662299161,12cyclictest1275765-21taskset20:10:153
119662299161,12cyclictest1274341-21taskset20:05:263
119662299161,12cyclictest1230079-21taskset19:31:403
119662299161,12cyclictest1197281-21taskset19:10:153
119662299160,13cyclictest1586221-21taskset00:12:003
119662299160,12cyclictest1469591-21taskset22:40:153
119662299160,12cyclictest1415000-21taskset21:59:563
1196622991512,1cyclictest0-21swapper/322:15:203
1196622991512,1cyclictest0-21swapper/321:00:183
1196622991512,1cyclictest0-21swapper/319:40:153
119662299151,11cyclictest1592466-21chrt00:15:573
119662299151,11cyclictest1548171-21taskset23:40:373
119662299151,11cyclictest1338101-21taskset20:55:363
119662299151,11cyclictest1325492-21taskset20:45:293
119662299151,11cyclictest1268247-21chrt20:03:413
119662299151,11cyclictest1255552-21taskset19:53:393
119662299151,11cyclictest1211648-21taskset19:20:103
119662299151,11cyclictest1211648-21taskset19:20:103
119662299150,12cyclictest1573804-21chrt00:04:593
119662299150,12cyclictest1554668-21chrt23:47:523
119662299150,12cyclictest1541875-21chrt23:36:183
119662299150,12cyclictest1478590-21taskset22:50:133
119662299150,12cyclictest1478096-21chrt22:47:233
119662299150,12cyclictest1350845-21taskset21:06:143
119662299150,11cyclictest1326095-21taskset20:50:113
119662299140,11cyclictest1307076-21taskset20:35:073
307598130,8rtkit-daemon1207208-21cut19:15:182
13450852130,1sleep11345235-21/usr/sbin/munin21:05:121
12928072131,9sleep11292910-21grep20:20:201
307598120,8rtkit-daemon1345049-21/usr/sbin/munin21:05:212
307598120,8rtkit-daemon1233775-21cut19:35:172
307598120,2rtkit-daemon171rcu_preempt00:10:111
119662299125,5cyclictest11964642sleep319:10:013
307598110,7rtkit-daemon1555090-21/usr/sbin/munin23:50:141
307598110,7rtkit-daemon1446563-21taskset22:23:351
307598110,6rtkit-daemon1454874-21tr22:30:151
307598110,4rtkit-daemon431ktimers/219:26:262
16120452112,5sleep11612079-21apt-get00:35:121
15867152111,6sleep21586748-21apt-get00:15:122
12643132110,8sleep21266307-21cut20:00:172
307598100,6rtkit-daemon719-21lldpd20:50:142
307598100,6rtkit-daemon1504172-21apt-get23:10:131
307598100,5rtkit-daemon217-21plymouthd21:46:001
307598100,5rtkit-daemon1300523-21apt-get20:30:122
15803652101,5sleep21580398-21apt-get00:10:122
15677622100,7sleep01567773-21basename00:00:120
13963262100,7sleep21396482-21diskstats21:45:132
13390452101,6sleep11339526-21irqcore21:00:141
30759890,6rtkit-daemon3256-21sendmail-mta23:09:071
30759890,6rtkit-daemon1493477-21kthreadcore23:00:161
30759890,5rtkit-daemon719-21lldpd00:20:461
30759890,5rtkit-daemon3256-21sendmail-mta23:30:271
30759890,5rtkit-daemon3256-21sendmail-mta23:16:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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