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2025-04-02 - 06:54
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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackfslot4.osadl.org (updated Wed Apr 02, 2025 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3127321250,2chrt30457-21/usr/sbin/munin19:41:420
2178221210,2chrt21778-21ntpq19:23:160
3158521180,3chrt31581-21ntpq00:11:350
2975821170,4chrt29759-21ssh23:00:040
1879221160,3chrt16592-21sendmail-msp23:44:550
1545121160,2chrt14066-21sendmail-msp21:22:560
2067821150,3chrt20677-21ssh21:34:100
1528621140,3chrt15287-21sh22:30:480
2586221130,3chrt25860-21ntpq21:44:330
1986721120,2chrt16783-21sendmail-msp20:26:230
278821090,2chrt2789-21sleep22:03:560
2850721040,2sleep028508-21ls00:05:150
450921020,1sleep04511-21irqrtprio00:22:230
263672950,2sleep026369-21tr21:45:330
141372940,1sleep014141-21latency_hist21:20:110
250452890,2sleep025047-21sort19:30:020
76962810,1sleep07697-21aten2.4-expect00:30:350
195662810,1sleep019567-21ssh23:46:280
79682780,2sleep07970-21ssh23:22:030
1496990764,17cyclictest31495-21sshd23:03:240
252832690,1sleep025284-21aten2_rfpower_e19:30:280
126862590,2chrt12684-21cron22:25:000
9312532,40sleep0970-21latency_hist22:00:090
287472530,2chrt28744-21/usr/sbin/munin00:05:340
99272520,1sleep09935-21grep21:11:540
132502510,4chrt13236-21apt-config22:25:440
1345924812,19sleep013461-21ntpq19:05:400
7732470,3chrt43-21kswapd023:07:450
14969904718,22cyclictest0-21swapper21:29:280
14969904718,21cyclictest0-21swapper23:13:140
14969904711,28cyclictest0-21swapper20:40:100
14969904517,21cyclictest0-21swapper23:52:450
14969904515,23cyclictest0-21swapper23:57:450
79572440,1sleep07955-21ls20:00:060
310202442,32sleep030992-21apt-get20:50:250
1496990446,17cyclictest22437-21munin-run22:45:090
1496990445,12cyclictest4223-21perl21:01:260
1496990439,17cyclictest30318-21sendmail-msp19:45:100
1496990436,19cyclictest9854-21users23:25:580
1496990436,19cyclictest12593-21ntpq23:31:590
1496990436,18cyclictest28839-21ssh21:51:020
1496990436,10cyclictest3421-21munin-run21:00:010
14969904319,17cyclictest24313-21/usr/sbin/munin22:52:050
14969904315,20cyclictest0-21swapper22:13:320
14969904314,20cyclictest0-21swapper00:37:320
14969904313,23cyclictest6053-21apt-get21:05:240
14969904313,23cyclictest0-21swapper00:28:590
14969904312,24cyclictest9370-21ntpq20:02:270
14969904311,18cyclictest20189-21sendmail-msp22:45:550
1496990426,19cyclictest10791-21sshd20:06:230
1496990425,18cyclictest23551-21sshd20:35:240
1496990424,11cyclictest15566-21hddtemp_smartct19:10:400
1496990416,28cyclictest28885-21diskstats20:46:060
1496990416,10cyclictest17642-21df20:21:270
1496990414,28cyclictest22455-21ntp_states21:36:490
1496990414,11cyclictest29254-21ntp_states19:37:000
1496990413,9cyclictest21912-21ntpq20:30:530
14969904118,17cyclictest5461-21ssh23:16:180
14969904112,21cyclictest0-21swapper23:38:160
1496990405,28cyclictest25713-21snmpd19:51:260
1496990405,12cyclictest1053-21diskstats00:15:500
14969904019,14cyclictest0-21swapper22:35:060
14969904011,22cyclictest0-21swapper22:09:360
1496990393,19cyclictest17906-21df19:15:270
1496990386,12cyclictest8166-21df_inode22:15:400
1496990386,10cyclictest14366-21apt-get20:15:210
1496990375,25cyclictest12148-21diskstats20:10:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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