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2026-06-01 - 20:19
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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 rackaslot8.osadl.org (updated Mon Jun 01, 2026 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128252311260,42sleep20-21swapper/207:05:342
128252311260,42sleep20-21swapper/207:05:342
130972279249,20sleep10-21swapper/107:09:031
130972279249,20sleep10-21swapper/107:09:031
130312271239,22sleep30-21swapper/307:08:133
130312271239,22sleep30-21swapper/307:08:133
130432266240,17sleep00-21swapper/007:08:220
130432266240,17sleep00-21swapper/007:08:220
106832610,0sleep30-21swapper/309:51:143
185852590,0sleep10-21swapper/111:11:321
81732560,0sleep30-21swapper/309:30:463
48042560,0sleep10-21swapper/111:22:331
141092560,0sleep10-21swapper/107:10:151
65322550,0sleep30-21swapper/311:05:053
146922550,0sleep30-21swapper/308:20:203
144022550,0sleep00-21swapper/009:53:590
252212530,0sleep00-21swapper/010:19:050
41042500,0sleep30-21swapper/312:19:133
141312200,0sleep10-21swapper/109:15:311
31042170,0sleep10-21swapper/109:46:551
298372150,0sleep00-21swapper/010:59:540
24462150,0sleep10-21swapper/112:17:591
194982150,0sleep30-21swapper/312:27:583
278512140,0sleep20-21swapper/210:39:502
150612140,0sleep20-21swapper/210:12:512
175562130,0sleep20-21swapper/207:15:212
4755290,0sleep30-21swapper/310:25:213
132809996,2cyclictest12-21ksoftirqd/007:15:010
10893290,1sleep00-21swapper/009:32:480
30968280,0sleep00-21swapper/010:22:020
29303280,0sleep30-21swapper/310:02:033
132919985,2cyclictest34-21ksoftirqd/308:05:003
11506280,0sleep10-21swapper/110:10:181
132919973,3cyclictest658-21snmpd08:44:213
132919973,3cyclictest275-21systemd-journal11:43:403
132919973,3cyclictest275-21systemd-journal07:40:003
132919973,3cyclictest14450-21ntpq07:10:173
132919972,4cyclictest658-21snmpd09:57:393
132919970,1cyclictest0-21swapper/310:11:433
132879973,3cyclictest560-21gdbus12:00:002
132879973,3cyclictest275-21systemd-journal09:35:172
132879972,4cyclictest0-21swapper/210:05:122
132859974,2cyclictest32297-21sshd07:50:071
132859973,3cyclictest275-21systemd-journal09:05:191
132859972,3cyclictest18323-21munin-run07:20:011
132859970,4cyclictest28598-21dump-pmu-power08:55:001
132859970,1cyclictest25004-21munin-run07:35:001
132809976,1cyclictest7749-21ssh10:08:450
132809973,3cyclictest8133-21munin-run11:25:010
132809973,3cyclictest658-21snmpd07:41:140
132919963,2cyclictest9920-21ssh09:13:473
132919963,2cyclictest962-21ssh11:01:093
132919963,2cyclictest6983-21ssh12:01:203
132919963,2cyclictest658-21snmpd11:47:213
132919963,2cyclictest501-21in:imuxsock09:35:233
132919963,2cyclictest31242-21chrt12:35:103
132919963,2cyclictest275-21systemd-journal08:40:003
132919963,2cyclictest19137-21rm11:30:343
132919963,2cyclictest16354-21rm10:51:193
132919963,2cyclictest15456-21cron07:19:563
132919963,2cyclictest13532-21cat12:05:173
132919962,3cyclictest658-21snmpd11:52:123
132919962,3cyclictest658-21snmpd11:27:233
132919962,3cyclictest658-21snmpd10:35:073
132919962,3cyclictest658-21snmpd10:15:093
132919962,3cyclictest658-21snmpd08:52:373
132919962,3cyclictest658-21snmpd08:46:123
132919962,3cyclictest658-21snmpd08:33:123
132919962,3cyclictest658-21snmpd08:29:423
132919962,3cyclictest658-21snmpd08:16:543
132919962,3cyclictest658-21snmpd08:08:453
132919962,3cyclictest658-21snmpd07:55:413
132919962,3cyclictest658-21snmpd07:54:023
132919962,3cyclictest658-21snmpd07:31:343
132919962,3cyclictest31290-21ls09:00:133
132919962,3cyclictest29717-21cat08:55:173
132919962,3cyclictest275-21systemd-journal10:55:353
132919962,3cyclictest275-21systemd-journal10:41:243
132919962,3cyclictest275-21systemd-journal10:07:233
132919962,3cyclictest275-21systemd-journal09:40:423
132919962,3cyclictest22883-21latency_hist07:30:013
132919962,3cyclictest20418-11brltty09:25:483
132919962,3cyclictest12722-21sed10:30:193
132919962,3cyclictest10507-21seq08:11:563
132919962,2cyclictest275-21systemd-journal10:45:313
132919962,2cyclictest275-21systemd-journal09:06:193
132919962,1cyclictest0-21swapper/312:10:243
132919962,1cyclictest0-21swapper/311:21:243
132919962,1cyclictest0-21swapper/311:18:363
132919962,1cyclictest0-21swapper/311:10:343
132919962,1cyclictest0-21swapper/309:20:183
132919960,6cyclictest0-21swapper/312:20:543
132919960,2cyclictest12083-21/usr/sbin/munin09:15:203
132919960,0cyclictest0-21swapper/311:37:293
132879964,1cyclictest32292-21ssh11:20:052
132879963,2cyclictest658-21snmpd09:22:132
132879963,2cyclictest5528-21ssh10:25:532
132879963,2cyclictest499-21taskset09:03:512
132879963,2cyclictest32009-21cat12:35:142
132879963,2cyclictest275-21systemd-journal11:00:462
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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