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2026-04-16 - 09:33
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack4slot4.osadl.org (updated Thu Apr 16, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71720rcu_preempt7885-1kworker/3:2H00:02:333
71720rcu_preempt7885-1kworker/3:2H00:02:333
71720rcu_preempt7885-1kworker/3:2H00:02:333
284822640sleep246450irq/118-QMan10:48:552
284822640sleep246450irq/118-QMan10:48:552
46050490irq/122-QManpo24445-2110:48:550
46050490irq/122-QManpo24445-2110:48:550
71450rcu_preempt0-21swapper/022:19:390
71450rcu_preempt0-21swapper/022:19:390
71450rcu_preempt0-21swapper/022:19:390
71440rcu_preempt0-21swapper/123:25:591
71440rcu_preempt0-21swapper/123:25:591
71440rcu_preempt0-21swapper/123:25:591
46250420irq/120-QManpo25687-2110:48:551
46250420irq/120-QManpo25687-2110:48:551
71410rcu_preempt22154-21sendmail-msp22:05:230
71410rcu_preempt22154-21sendmail-msp22:05:230
71410rcu_preempt22154-21sendmail-msp22:05:230
71400rcu_preempt6381-1kworker/0:0H00:31:090
71400rcu_preempt6381-1kworker/0:0H00:31:090
71400rcu_preempt0-21swapper/221:36:572
71400rcu_preempt0-21swapper/221:36:572
71400rcu_preempt0-21swapper/221:36:572
71400rcu_preempt0-21swapper/219:47:492
71400rcu_preempt0-21swapper/219:47:492
71400rcu_preempt0-21swapper/023:50:060
71400rcu_preempt0-21swapper/023:50:060
71390rcu_preempt9947-21taskset21:39:140
71390rcu_preempt9947-21taskset21:39:140
71390rcu_preempt6616-21mailstats19:57:461
71390rcu_preempt6616-21mailstats19:57:461
71390rcu_preempt22395-21runrttasks23:01:120
71390rcu_preempt22395-21runrttasks23:01:120
71390rcu_preempt22209-21copy22:02:361
71390rcu_preempt22209-21copy22:02:361
71390rcu_preempt22209-21copy22:02:361
71390rcu_preempt0-21swapper/023:26:370
71390rcu_preempt0-21swapper/023:26:370
71390rcu_preempt0-21swapper/023:26:370
71390rcu_preempt0-21swapper/000:38:090
71390rcu_preempt0-21swapper/000:38:090
46050390irq/122-QManpo5573-2110:48:550
46050390irq/122-QManpo5573-2110:48:550
46050390irq/122-QManpo5573-2110:48:550
2299390migration/218707-21taskset21:55:552
2299390migration/218707-21taskset21:55:552
71380rcu_preempt8876-21ssh00:33:180
71380rcu_preempt8876-21ssh00:33:180
71380rcu_preempt25502-1diskmemload00:05:040
71380rcu_preempt25502-1diskmemload00:05:040
71380rcu_preempt25502-1diskmemload00:05:040
71380rcu_preempt17006-1kworker/2:1H23:52:352
71380rcu_preempt17006-1kworker/2:1H23:52:352
71380rcu_preempt0-21swapper/223:49:032
71380rcu_preempt0-21swapper/223:49:032
71380rcu_preempt0-21swapper/222:06:042
71380rcu_preempt0-21swapper/222:06:042
71380rcu_preempt0-21swapper/222:06:042
71380rcu_preempt0-21swapper/200:29:282
71380rcu_preempt0-21swapper/200:29:282
71380rcu_preempt0-21swapper/100:30:191
71380rcu_preempt0-21swapper/100:30:191
71380rcu_preempt0-21swapper/023:42:270
71380rcu_preempt0-21swapper/023:42:270
71380rcu_preempt0-21swapper/023:31:550
71380rcu_preempt0-21swapper/023:31:550
71380rcu_preempt0-21swapper/023:31:550
71380rcu_preempt0-21swapper/022:30:160
71380rcu_preempt0-21swapper/022:30:160
71380rcu_preempt0-21swapper/022:30:160
71380rcu_preempt0-21swapper/021:51:320
71380rcu_preempt0-21swapper/021:51:320
71380rcu_preempt0-21swapper/021:51:320
2299380migration/225461-21taskset19:09:362
2299380migration/225461-21taskset19:09:362
71370rcu_preempt25744-21/usr/sbin/munin23:07:331
71370rcu_preempt25744-21/usr/sbin/munin23:07:331
71370rcu_preempt23884-21sendmail-msp21:06:041
71370rcu_preempt23884-21sendmail-msp21:06:041
71370rcu_preempt0-21swapper/322:09:583
71370rcu_preempt0-21swapper/322:09:583
71370rcu_preempt0-21swapper/200:22:352
71370rcu_preempt0-21swapper/200:22:352
71370rcu_preempt0-21swapper/200:22:352
71370rcu_preempt0-21swapper/123:45:461
71370rcu_preempt0-21swapper/123:45:461
71370rcu_preempt0-21swapper/123:31:371
71370rcu_preempt0-21swapper/123:31:371
71370rcu_preempt0-21swapper/123:31:371
71370rcu_preempt0-21swapper/123:06:561
71370rcu_preempt0-21swapper/123:06:561
71370rcu_preempt0-21swapper/123:06:561
71370rcu_preempt0-21swapper/100:34:281
71370rcu_preempt0-21swapper/100:34:281
71370rcu_preempt0-21swapper/100:07:581
71370rcu_preempt0-21swapper/100:07:581
71370rcu_preempt0-21swapper/100:07:581
71370rcu_preempt0-21swapper/022:52:160
71370rcu_preempt0-21swapper/022:52:160
71370rcu_preempt0-21swapper/022:52:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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