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2026-09-16 - 09:11
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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 Wed Sep 16, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2135330992825,1cyclictest0-21swapper/320:20:203
213533099279,9cyclictest21581692sleep319:25:193
2135330992724,1cyclictest0-21swapper/322:10:013
2135330992724,1cyclictest0-21swapper/322:00:553
2135330992724,1cyclictest0-21swapper/319:20:143
2135330992623,1cyclictest0-21swapper/320:00:293
2135330992522,1cyclictest0-21swapper/323:56:353
2135330992522,1cyclictest0-21swapper/300:20:153
2135330992521,1cyclictest0-21swapper/323:20:243
2135330992421,1cyclictest0-21swapper/322:40:193
2135330992320,1cyclictest0-21swapper/320:30:203
2135330992311,1cyclictest0-21swapper/321:35:223
25188242221,12sleep22520527-21tr23:35:192
2135330992219,1cyclictest0-21swapper/321:20:013
2135330992219,1cyclictest0-21swapper/321:00:203
2135330992219,1cyclictest0-21swapper/300:15:013
2135330992212,1cyclictest0-21swapper/300:03:373
2135330992118,1cyclictest0-21swapper/322:20:093
2135330992117,1cyclictest0-21swapper/323:00:243
2135330992117,1cyclictest0-21swapper/323:00:243
2135330992112,1cyclictest0-21swapper/319:59:073
2135330992112,0cyclictest0-21swapper/321:42:283
213533099202,14cyclictest2515474-21taskset23:30:423
213533099202,14cyclictest2422072-21taskset22:31:053
2135330992017,1cyclictest0-21swapper/321:20:013
2135330992017,1cyclictest0-21swapper/320:40:153
2135330992017,1cyclictest0-21swapper/319:40:203
2135330992016,1cyclictest0-21swapper/323:00:013
2135330992016,1cyclictest0-21swapper/320:38:373
2135330992012,0cyclictest0-21swapper/323:18:543
213533099201,15cyclictest2368262-21taskset21:58:383
213533099201,14cyclictest2501841-21chrt23:25:143
2135330992010,0cyclictest0-21swapper/321:05:023
213533099191,14cyclictest2520528-21taskset23:35:203
213533099191,14cyclictest2428859-21taskset22:35:193
213533099191,14cyclictest2397827-21taskset22:15:213
213533099191,14cyclictest2168344-21taskset19:30:243
213533099191,14cyclictest2140749-21taskset19:10:233
213533099191,13cyclictest2484927-21taskset23:12:223
213533099191,13cyclictest2415120-21taskset22:28:213
2135330991910,1cyclictest0-21swapper/320:07:553
2135330991815,1cyclictest0-21swapper/322:15:013
2135330991815,1cyclictest0-21swapper/321:45:173
213533099181,14cyclictest2265222-21taskset20:50:113
213533099181,13cyclictest2609840-21taskset00:32:273
213533099181,13cyclictest2602082-21taskset00:27:263
213533099181,13cyclictest2548115-21taskset23:54:283
213533099181,13cyclictest2531150-21taskset23:40:563
213533099181,13cyclictest2359497-21taskset21:50:533
213533099181,13cyclictest2297742-21taskset21:13:163
213533099181,13cyclictest2277293-21taskset20:56:213
213533099181,13cyclictest2277293-21taskset20:56:203
213533099181,13cyclictest2193867-21taskset19:50:243
213533099181,13cyclictest2182469-21taskset19:45:143
213533099181,12cyclictest2476649-21taskset23:05:533
23238642170,14sleep12325550-21grep21:30:191
213533099176,8cyclictest2258809-21taskset20:45:073
2135330991714,1cyclictest0-21swapper/320:15:153
2135330991714,1cyclictest0-21swapper/300:05:163
213533099171,13cyclictest2586588-21taskset00:18:043
213533099171,13cyclictest2446123-21taskset22:47:453
213533099171,13cyclictest2238426-21taskset20:25:233
213533099171,12cyclictest2534367-21taskset23:45:173
213533099171,12cyclictest2453448-21taskset22:51:253
213533099171,12cyclictest2328255-21taskset21:31:163
213533099171,12cyclictest2320871-21taskset21:27:243
213533099171,12cyclictest2149822-21taskset19:17:213
213533099161,12cyclictest2616445-21taskset00:35:253
213533099161,12cyclictest2220010-21taskset20:12:033
213533099160,12cyclictest2175321-21taskset19:37:163
26086482151,6sleep12608678-21ssh00:30:261
23847752151,4sleep02384937-21diskstats22:10:140
23069392150,7sleep22307437-21irqcore21:20:172
22909172151,2sleep00-21swapper/021:10:140
23793752141,5sleep12381163-21cut22:05:191
26183572131,9sleep22618363-21ssh00:39:302
24545092131,9sleep12454511-21ssh22:54:261
24461112130,10sleep12446117-21ssh22:47:431
24003672131,4sleep13594167-21systemd-journal22:20:091
23917262131,9sleep22391731-21sh22:13:332
22961382131,8sleep12296182-21ntpq21:10:221
22464112130,10sleep22247117-21cut20:35:172
21503542131,9sleep22150090-21sendmail-msp19:20:142
25329782120,3sleep22532984-21ssh23:45:132
24996632121,3sleep12499881-21users23:20:271
26174912110,8sleep02617497-21ssh00:37:070
24788212110,8sleep02479051-21cut23:10:150
24007882111,6sleep22400941-21irqcore22:20:142
23145822110,3sleep02314788-21hddtemp_smartct21:25:160
23136562110,8sleep02313662-21ssh21:23:570
22823912111,7sleep12283032-21/usr/sbin/munin21:00:241
22715192110,3sleep20-21swapper/220:55:132
22715192110,3sleep20-21swapper/220:55:122
25930302100,8sleep12593068-21ntpq00:20:241
25225132100,7sleep12517331-21/usr/sbin/munin23:35:221
24790522100,7sleep12479878-21kthreadcore23:10:161
24681112101,6sleep2249-21jbd2/sda2-823:00:202
24681112101,6sleep2249-21jbd2/sda2-823:00:192
24542582100,7sleep22454263-21sh22:53:382
24159902106,2sleep2431ktimers/222:30:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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