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2026-07-10 - 10:03
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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 Fri Jul 10, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313002321263,48sleep10-21swapper/119:09:191
312962309254,17sleep20-21swapper/219:09:162
311752260230,20sleep00-21swapper/019:07:410
293762257227,20sleep30-21swapper/319:05:033
251812650,0sleep20-21swapper/200:24:362
324112610,0sleep10-21swapper/123:11:121
30662610,0sleep10-21swapper/122:35:121
111912600,0sleep00-21swapper/023:37:170
64072570,0sleep30-21swapper/323:15:183
248122570,0sleep00-21swapper/021:50:140
291762550,0sleep10-21swapper/122:11:491
148972550,1sleep10-21swapper/123:20:161
14832550,0sleep00-21swapper/020:25:130
14022540,0sleep20-21swapper/200:29:492
272582530,0sleep20-21swapper/221:32:092
40042490,0sleep20-21swapper/221:56:492
266332180,0sleep30-21swapper/323:46:173
199012160,0sleep00-21swapper/023:23:360
150662160,0sleep10-21swapper/120:55:011
324362150,0sleep332435-21ssh21:15:333
302372150,0sleep20-21swapper/221:15:042
294902150,0sleep30-21swapper/300:07:193
257272140,0sleep00-21swapper/022:48:320
305692130,0sleep20-21swapper/222:50:502
305252110,0sleep30-21swapper/322:31:493
271992110,0chrt0-21swapper/123:27:491
3146299109,1cyclictest28-21ksoftirqd/219:20:012
3146299108,1cyclictest28-21ksoftirqd/200:00:002
3145399109,1cyclictest12-21ksoftirqd/000:00:000
314629993,3cyclictest2358-21munin-run22:35:012
25190290,0chrt0-21swapper/320:05:143
314649986,1cyclictest4670-21ssh22:35:243
314629987,1cyclictest28-21ksoftirqd/222:40:012
314539987,1cyclictest12-21ksoftirqd/023:10:010
314539987,1cyclictest12-21ksoftirqd/022:15:000
314539987,1cyclictest12-21ksoftirqd/022:00:010
15336280,0sleep315325-21apt-get23:40:133
314649976,1cyclictest21605-21diskmemload21:48:373
314649975,1cyclictest21267-21cat22:45:213
314649973,3cyclictest658-21snmpd21:26:003
314649973,3cyclictest0-21swapper/321:35:123
314649973,2cyclictest275-21systemd-journal22:12:543
314649970,3cyclictest275-21systemd-journal00:14:383
314629975,2cyclictest28-21ksoftirqd/221:25:002
314629973,3cyclictest658-21snmpd00:00:572
314629973,3cyclictest30285-21which20:15:182
314629973,3cyclictest22812-21perl23:25:142
314629970,6cyclictest0-21swapper/200:35:152
314579973,1cyclictest0-21swapper/123:05:171
314539976,1cyclictest12-21ksoftirqd/023:50:010
314539973,3cyclictest658-21snmpd23:53:300
314539973,3cyclictest658-21snmpd23:29:170
314539973,3cyclictest658-21snmpd19:35:150
314539973,3cyclictest275-21systemd-journal23:02:560
314539973,3cyclictest275-21systemd-journal00:28:060
314539972,4cyclictest24637-21munin-run00:05:000
314539972,1cyclictest141rcu_preempt21:30:120
23562270,2sleep012-21ksoftirqd/000:23:220
21729270,0sleep20-21swapper/221:29:212
314649966,0cyclictest0-21swapper/300:16:263
314649963,2cyclictest663-21runrttasks23:13:173
314649963,2cyclictest662-21ssh23:30:433
314649963,2cyclictest658-21snmpd22:51:553
314649963,2cyclictest658-21snmpd20:22:383
314649963,2cyclictest5238-21ntp_offset22:55:203
314649963,2cyclictest29686-21sh21:53:033
314649963,2cyclictest28612-21taskset20:12:033
314649963,2cyclictest28015-21uptime00:25:233
314649963,2cyclictest26922-21ssh23:27:373
314649963,2cyclictest26556-21sh21:31:393
314649963,2cyclictest2631-21expr19:15:123
314649963,2cyclictest2565-21diskstats00:30:133
314649963,2cyclictest21662-21ssh00:02:433
314649963,2cyclictest13894-21sh23:00:213
314649963,2cyclictest12718-21ssh22:02:033
314649963,1cyclictest0-21swapper/322:42:363
314649962,3cyclictest7815-21cat21:40:133
314649962,3cyclictest658-21snmpd23:21:053
314649962,3cyclictest658-21snmpd22:21:393
314649962,3cyclictest658-21snmpd21:05:213
314649962,3cyclictest658-21snmpd19:33:363
314649962,3cyclictest658-21snmpd19:26:273
314649962,3cyclictest658-21snmpd00:21:153
314649962,3cyclictest504-21dbus-daemon23:35:523
314649962,3cyclictest504-21dbus-daemon22:00:013
314649962,3cyclictest275-21systemd-journal20:42:003
314649962,3cyclictest19683-21sshd19:51:493
314649962,3cyclictest13004-21cat20:50:133
314649962,3cyclictest10641-21cat20:45:113
314649962,1cyclictest0-21swapper/323:51:273
314649961,4cyclictest0-21swapper/322:15:233
314649961,3cyclictest21172-21rm22:26:043
314649961,2cyclictest9719-21ssh23:55:213
314649960,5cyclictest3536-21cat20:30:003
314629964,1cyclictest4283-21cut20:30:142
314629963,2cyclictest658-21snmpd19:58:132
314629963,2cyclictest5963-21rm00:12:422
314629963,2cyclictest5608-21cpuspeed23:15:142
314629963,2cyclictest32427-21memory21:35:162
314629963,2cyclictest30990-21ssh22:13:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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