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2026-06-02 - 01:02
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rack3slot5.osadl.org.osadl.org (updated Mon Jun 01, 2026 12:44:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151150460,0ktimers/039411sleep07:14:230
1514780,0ktimers/0208861sleep12:03:000
1514750,0ktimers/0131161sleep11:05:470
40949947433,0cyclictest1569-21munin-run09:51:350
1514720,0ktimers/06971sleep09:44:040
1514710,0ktimers/0119511sleep10:58:150
1514690,0ktimers/0203021sleep11:59:280
1514670,0ktimers/0286601sleep09:14:320
1514650,0ktimers/0143441sleep11:15:490
409499460128,0cyclictest0-21swapper12:13:470
1514600,0ktimers/0194651sleep11:55:170
1514530,0ktimers/0217311sleep12:08:200
40949944487,0cyclictest0-21swapper11:20:110
1514400,0ktimers/097121sleep10:42:030
409499437119,0cyclictest6299-21mailstats10:21:510
525504350,0irq/11-sym53c8x130250irq/15-NE200010:36:370
40949943534,0cyclictest0-21swapper08:21:350
40949943533,0cyclictest32049-21chrt09:37:050
40949943333,0cyclictest30370-21sendmail-msp09:26:360
40949943230,0cyclictest3460-21snmpd07:56:340
40949943030,0cyclictest18730-21ssh11:48:590
1514300,0ktimers/0306961sleep09:28:470
40949942743,0cyclictest0-21swapper09:20:310
40949942727,0cyclictest27275-21sendmail_mailtr12:46:410
40949942632,0cyclictest11473-21ssh10:54:350
409499426131,0cyclictest17879-21mailstats11:41:500
409499425126,0cyclictest11095-21sshd07:48:390
40949942429,0cyclictest31925-21ls09:36:390
40949942186,0cyclictest25524-21sh09:01:260
40949942032,0cyclictest9268-21which07:41:500
40949941931,0cyclictest15193-21ssh11:22:110
40949941731,0cyclictest24536-21ssh12:26:410
40949941446,0cyclictest5237-21munin-node07:21:460
40949941331,0cyclictest3968-21chrt10:05:590
40949941283,0cyclictest26367-21cut09:03:190
40949941234,0cyclictest27699-21apt09:11:270
40949941033,0cyclictest12632-21df07:57:220
40949940834,0cyclictest22662-21egrep08:47:310
40949940732,0cyclictest7715-21latency_hist10:31:350
40949940732,0cyclictest3460-21snmpd12:40:560
40949940637,0cyclictest20202-21timerwakeupswit08:33:220
40949940635,0cyclictest8741-21tr10:36:510
40949940632,0cyclictest0-21swapper08:12:420
40949940533,0cyclictest14646-21chrt08:06:460
40949940532,0cyclictest7907-21chrt07:34:500
40949940531,0cyclictest2092-21sh09:55:430
40949940441,0cyclictest3435-21nscd11:41:270
40949940432,0cyclictest4668-21ssh10:11:350
40949940333,0cyclictest17410-21chrt08:21:140
40949940232,0cyclictest3460-21snmpd12:30:270
40949940231,0cyclictest25675-21ssh12:36:070
40949940130,0cyclictest16319-21runrttasks11:31:430
40949940031,0cyclictest13291-21sshd11:06:510
40949940030,0cyclictest21576-21df_inode08:42:300
40949939947,0cyclictest4091-21cyclictest08:37:380
40949939935,0cyclictest10636-21chrt10:47:150
40949939932,0cyclictest6688-21basename07:28:180
40949939931,0cyclictest4760-21sshd10:11:510
40949939833,0cyclictest0-21swapper09:57:350
40949939631,0cyclictest23628-21wc12:21:390
40949939631,0cyclictest14496-21sendmail08:06:260
40949939580,0cyclictest8100-21sendmail_mailtr07:36:410
40949939534,0cyclictest18782-21cut08:27:500
40949939531,0cyclictest3729-21runrttasks07:18:140
40949939531,0cyclictest23523-21chrt08:51:450
40949939530,0cyclictest6040-21chrt10:20:190
40949939429,0cyclictest15897-21ssh11:28:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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