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2026-09-15 - 15:55
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack6slot5.osadl.org (updated Tue Sep 15, 2026 12:46:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
111599101255368,4744cyclictest32760-21kworker/0:107:22:150
11159992434604,4625cyclictest11179-21kworker/0:007:45:240
11159991324690,4431cyclictest11179-21kworker/0:007:38:590
11159990974527,4528cyclictest9897-21kworker/0:008:58:470
11159990734563,4500cyclictest27310-21kworker/0:108:32:320
11159989144436,4428cyclictest9897-21kworker/0:009:06:250
11159988534554,4295cyclictest32760-21kworker/0:107:33:330
11159988454394,4437cyclictest27310-21kworker/0:108:16:580
11159988194541,4264cyclictest3119-21kworker/0:109:58:200
11159982174080,4095cyclictest27310-21kworker/0:108:23:410
11159981944369,3783cyclictest27310-21kworker/0:108:44:370
11159979614176,3771cyclictest32760-21kworker/0:107:14:100
11159977753883,3879cyclictest32760-21kworker/0:107:26:570
11159976223996,3612cyclictest11179-21kworker/0:008:10:140
11159973263644,3639cyclictest11179-21kworker/0:007:42:590
11159972153883,3281cyclictest11179-21kworker/0:007:50:120
11159970633506,3507cyclictest11179-21kworker/0:007:56:580
11159969303637,3243cyclictest29935-21kworker/0:209:42:390
11159969093546,3349cyclictest9897-21kworker/0:009:27:050
11159967723573,3158cyclictest9897-21kworker/0:009:14:180
11159967673657,3059cyclictest32760-21kworker/0:107:17:510
11159967083553,3145cyclictest9897-21kworker/0:009:00:210
11159966703599,2996cyclictest27310-21kworker/0:108:51:460
11159965933518,3065cyclictest11179-21kworker/0:008:05:120
11159965683464,3100cyclictest27310-21kworker/0:108:37:410
11159961213235,2837cyclictest11179-21kworker/0:008:03:360
11159960153102,2890cyclictest9897-21kworker/0:009:17:290
11159958873254,2629cyclictest27310-21kworker/0:108:46:130
11159954832843,2630cyclictest27310-21kworker/0:108:25:170
11159944172212,2191cyclictest3119-21kworker/0:110:00:180
8672781183,179sleep00-21swapper07:08:360
11159956131,516cyclictest20377-21rm10:31:060
11159949434,447cyclictest3888-21seq11:07:190
11159948635,388cyclictest4305-21snmpd12:35:580
11159948531,440cyclictest18637-21smart_sda11:41:180
11159948031,379cyclictest14313-21sendmail_mailqu11:31:260
11159947636,380cyclictest14469-21diskmemload12:31:470
11159947432,427cyclictest292512chrt12:05:580
11159947336,376cyclictest27942-21ssh09:36:230
11159947236,367cyclictest14469-21diskmemload10:55:250
11159947038,256cyclictest22609-21ssh10:36:120
11159947032,379cyclictest12211-21chrt12:44:430
11159946934,420cyclictest17276-21latency_hist10:25:040
11159946858,349cyclictest15967-21kworker/u2:010:26:390
11159946737,416cyclictest14469-21diskmemload11:02:540
11159946533,370cyclictest14469-21diskmemload10:50:410
11159946436,414cyclictest14469-21diskmemload12:26:560
11159946137,363cyclictest14469-21diskmemload12:12:010
11159946031,415cyclictest12217-21ssh11:26:290
11159945937,407cyclictest14469-21diskmemload11:51:060
11159945937,363cyclictest14469-19diskmemload12:01:240
11159945935,354cyclictest860-21df12:15:450
11159945734,361cyclictest12096-21ps10:11:370
11159945535,359cyclictest14263-21ps10:16:370
11159945532,361cyclictest9314-21sed11:20:380
11159945532,352cyclictest23994-21ntp_states10:40:240
11159945437,356cyclictest14469-21diskmemload09:24:060
11159945337,356cyclictest4924-21runrttasks10:06:240
11159945337,356cyclictest14469-21diskmemload10:49:030
11159945332,406cyclictest7203-21df_inode11:15:400
11159945231,406cyclictest14469-21diskmemload11:55:240
11159945133,358cyclictest25810-21ssh09:30:480
11159944632,353cyclictest14469-21diskmemload12:21:250
11159944432,353cyclictest14469-21diskmemload11:49:590
11159944068,87cyclictest6463-21seq11:14:110
11159942632,219cyclictest32692-21python09:45:510
11159942031,376cyclictest13667-21kworker/u2:009:54:560
11159940449,296cyclictest17069-21ssh11:38:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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