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2025-06-17 - 01:57
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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 50 highest latencies:
System rack2slot7.osadl.org (updated Tue Jun 17, 2025 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2023035995424,5cyclictest2151669-21ntpq22:56:430
202303599483,29cyclictest0-21swapper/021:26:490
202303599453,21cyclictest2172147-21/usr/sbin/munin23:21:410
2023035994522,4cyclictest0-21swapper/023:58:430
2023036994434,5cyclictest0-21swapper/122:21:441
2023035994121,4cyclictest0-21swapper/021:51:510
2023036993920,8cyclictest11050irq/107-eth%d22:06:381
2023035993819,7cyclictest111788-21systemd-journal22:04:310
202303599361,24cyclictest2155368-21gltestperf23:01:410
202303599361,24cyclictest2155368-21gltestperf23:01:410
2023035993527,5cyclictest2230784-21grep00:31:460
202303599351,26cyclictest0-21swapper/021:30:590
2023035993510,2cyclictest171rcu_preempt19:13:400
202303599342,3cyclictest2063238-21diskmemload22:31:390
202303599342,17cyclictest2044277-21ntpq20:16:440
2023035993320,2cyclictest2212464-21find00:06:530
2023035993316,2cyclictest2159582-21gltestperf23:06:400
2023035993316,2cyclictest2101189-21ntpq21:56:430
202303599321,19cyclictest0-21swapper/023:56:480
2023035993122,7cyclictest2053548-21fschecks_count20:46:420
2023035993112,1cyclictest0-21swapper/023:41:520
202303599293,20cyclictest0-21swapper/021:21:430
202303599291,21cyclictest2126631-21unixbench_singl22:26:510
2023035992911,2cyclictest171rcu_preempt19:16:430
202303599290,5cyclictest2147657-21threads22:51:470
202303799283,3cyclictest171rcu_preempt19:16:452
2023036992818,8cyclictest607-21dbus-daemon22:43:401
202303599282,15cyclictest14-21ksoftirqd/023:36:410
202303799274,7cyclictest11050irq/107-eth%d00:11:472
2023037992723,3cyclictest0-21swapper/223:03:432
2023037992619,4cyclictest2100603-21fschecks_count21:56:392
202303699265,16cyclictest111788-21systemd-journal21:04:151
2023035992622,3cyclictest2041418-21unixbench_multi20:06:490
202303799251,7cyclictest171rcu_preempt22:41:502
2023037992517,4cyclictest0-21swapper/222:01:422
202303699253,15cyclictest2230788-21wc00:31:461
2023035992517,2cyclictest2032260-21tune2fs19:41:380
2023035992516,1cyclictest0-21swapper/019:31:390
202303599251,2cyclictest2134507-21ntpq22:36:470
202303599251,23cyclictest0-21swapper/023:31:470
202303799243,6cyclictest171rcu_preempt21:26:442
202303799242,2cyclictest171rcu_preempt22:31:452
202303799241,20cyclictest1006-21mta-sts-daemon00:06:472
202303799240,2cyclictest11050irq/107-eth%d23:58:422
202303699243,4cyclictest11050irq/107-eth%d21:44:061
202303599242,6cyclictest2226894-21/usr/sbin/munin00:26:410
202303599241,23cyclictest0-21swapper/023:48:430
202303599241,22cyclictest2046311-21grep20:21:500
2023035992410,5cyclictest0-21swapper/021:46:500
2023037992316,3cyclictest2045368-21fschecks_time20:21:402
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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