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2026-05-07 - 16:01
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Characteristics of the highest latencies:
System rack8slot1.osadl.org (updated Thu May 07, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14967993461761,0cyclictest3896-21sort08:01:470
14967992938357,0cyclictest14939-21cron07:01:460
14967992630657,0cyclictest9269-21latency_hist08:16:470
14967992526687,0cyclictest12803-21munin-node08:26:480
14967992484248,0cyclictest7580-1kworker/0:0H08:41:470
14967992469771,0cyclictest21061-21latency_hist10:21:480
14967992468683,0cyclictest1511-21latency_hist09:26:470
14967992451607,0cyclictest9-21ksoftirqd/007:46:470
14967992446193,0cyclictest7580-1kworker/0:0H11:06:470
14967992435520,0cyclictest22165-21cat07:21:470
14967992402755,0cyclictest26483-21sendmail_mailtr10:36:480
14967992400553,0cyclictest9-21ksoftirqd/007:26:470
14967992394666,0cyclictest9-21ksoftirqd/008:56:470
14967992391310,0cyclictest7580-1kworker/0:0H10:41:480
14967992385709,0cyclictest32322-21sendmail_mailtr09:21:480
14967992370657,0cyclictest1118-21cat10:56:480
14967992343260,0cyclictest7580-1kworker/0:0H12:21:460
14967992331290,0cyclictest7580-1kworker/0:0H09:36:470
14967992329251,0cyclictest7580-1kworker/0:0H12:26:460
14967992304269,0cyclictest18201-1kworker/0:1H07:06:480
14967992301281,0cyclictest7580-1kworker/0:0H11:01:470
14967992300248,0cyclictest7580-1kworker/0:0H11:41:460
14967992296554,0cyclictest9-21ksoftirqd/009:16:470
14967992287191,0cyclictest7580-1kworker/0:0H10:16:470
14967992269564,0cyclictest9-21ksoftirqd/011:21:480
14967992234228,0cyclictest7580-1kworker/0:0H09:06:470
14967992219243,0cyclictest7580-1kworker/0:0H10:26:480
14967992157508,0cyclictest11090-21latency_hist11:26:460
14967992120672,0cyclictest9-21ksoftirqd/007:31:510
14967992082288,0cyclictest7580-1kworker/0:0H10:01:500
14967992079269,0cyclictest18201-1kworker/0:1H07:36:470
14967992072278,0cyclictest7580-1kworker/0:0H09:46:470
14967992068289,0cyclictest7580-1kworker/0:0H08:36:470
14967992052196,0cyclictest7580-1kworker/0:0H08:51:500
14967992007723,0cyclictest9-21ksoftirqd/011:11:500
14967992007598,0cyclictest1595-21jbd2/hda3-810:46:460
14967991993289,0cyclictest7580-1kworker/0:0H11:16:460
14967991991266,0cyclictest7580-1kworker/0:0H11:36:470
14967991940219,0cyclictest7580-1kworker/0:0H08:21:470
14967991896207,0cyclictest7580-1kworker/0:0H08:46:460
14967991842297,0cyclictest7580-1kworker/0:0H10:51:510
14967991840120,0cyclictest18201-1kworker/0:1H07:41:470
14967991837590,0cyclictest14589-21sendmail_mailtr08:31:510
14967991807648,0cyclictest336-21which07:51:500
14967991775555,0cyclictest9-21ksoftirqd/009:51:560
14967991736723,0cyclictest7489-21mailstats08:11:510
14967991724700,0cyclictest24706-21mailstats10:31:510
14967991718241,0cyclictest18201-1kworker/0:1H07:16:470
14967991702609,0cyclictest12874-21mailstats11:31:510
14967991684624,0cyclictest9-21ksoftirqd/009:31:510
14967991684414,0cyclictest18612-21munin-node07:11:500
14967991636233,0cyclictest7580-1kworker/0:0H12:11:510
14967991635249,0cyclictest7580-1kworker/0:0H10:06:460
14967991622354,0cyclictest9-21ksoftirqd/012:03:580
14967991549309,0cyclictest21346-21grep11:54:140
14967991540506,0cyclictest29921-21perl12:19:010
14967991513493,0cyclictest19570-21fschecks_count11:49:070
14967991507516,0cyclictest9-21ksoftirqd/010:11:570
14967991499329,0cyclictest7580-1kworker/0:0H09:56:570
14967991465290,0cyclictest7580-1kworker/0:0H09:01:470
14967991447271,0cyclictest7580-1kworker/0:0H12:06:480
14967991404395,0cyclictest3461-21fschecks_count07:59:070
14967991347332,0cyclictest9-21ksoftirqd/009:44:010
14967991341314,0cyclictest9-21ksoftirqd/009:14:120
14967991310234,0cyclictest9-21ksoftirqd/008:08:580
1496799123624,0cyclictest23015-21perl11:58:580
149679920456,0cyclictest14984-21latency_hist07:01:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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