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2026-08-27 - 20:58
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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 376 highest latencies:
System rack6slot5.osadl.org (updated Thu Aug 27, 2026 12:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18929988914583,4297cyclictest10163-21kworker/0:007:33:270
18929977173841,3826cyclictest10163-21kworker/0:007:54:230
18929976404133,3494cyclictest10163-21kworker/0:007:56:420
18929966523430,3208cyclictest10163-21kworker/0:007:24:110
18929964603526,2920cyclictest28399-21kworker/0:008:23:040
18929964413517,2873cyclictest10163-21kworker/0:007:41:590
18929963333559,2724cyclictest10163-21kworker/0:007:18:470
18929963263398,2917cyclictest23643-21kworker/0:108:10:010
18929959553167,2737cyclictest10163-21kworker/0:007:14:140
18929959543083,2857cyclictest23643-21kworker/0:108:08:270
18929957063177,2525cyclictest10163-21kworker/0:007:25:460
18929941854112,60cyclictest28399-21kworker/0:008:35:190
15272806186,202sleep00-21swapper07:07:360
18929952732,425cyclictest15077-21diskmemload09:28:090
18929951333,410cyclictest27250-21sed12:10:040
18929951056,440cyclictest4924-21runrttasks11:59:420
18929950733,404cyclictest5769-21munin-node12:35:100
18929950353,380cyclictest2802-21chrt12:27:070
18929948864,249cyclictest13-21rcuc/008:40:360
18929948555,360cyclictest32142-21iostat09:50:500
18929948056,247cyclictest2056-21expr11:10:560
18929947537,263cyclictest15077-21diskmemload10:19:520
18929946998,357cyclictest11-21ksoftirqd/010:41:590
18929946854,355cyclictest11565-21kworker/u2:011:37:220
18929946752,356cyclictest26858-21ssh09:39:180
18929946631,421cyclictest24135-21sed09:31:420
18929946172,376cyclictest4924-21runrttasks12:30:280
18929946157,346cyclictest9147-21fschecks_count10:11:450
18929945868,97cyclictest11-21ksoftirqd/012:18:400
18929945772,88cyclictest16104-21runrttasks10:29:060
18929945731,411cyclictest833-21rm12:23:090
18929945492,348cyclictest351950irq/10-yenta11:15:250
18929945090,347cyclictest351950irq/10-yenta10:46:360
18929945053,374cyclictest15683-31date07:45:050
1892994501,435cyclictest11966-21ssh11:34:300
18929944987,349cyclictest351950irq/10-yenta11:06:100
1892994471,433cyclictest0-21swapper11:44:090
18929944571,361cyclictest26981-21rm10:54:300
18929944568,88cyclictest6863-21cut11:21:270
18929944394,337cyclictest351950irq/10-yenta09:14:420
18929944335,394cyclictest3478-21ssh10:00:260
18929944134,392cyclictest8237-21sed08:50:290
18929944133,394cyclictest8071-21munin-node12:40:230
18929944059,322cyclictest17964-21rm10:32:320
18929943934,391cyclictest27802-21munin-node12:10:390
18929943868,357cyclictest13703-21ssh10:22:500
18929943867,358cyclictest15077-21diskmemload09:47:170
18929943833,391cyclictest4924-21runrttasks10:58:170
18929943771,352cyclictest19235-21ssh09:19:210
18929943764,359cyclictest23832-21strings12:01:020
18929943563,359cyclictest27983-21strings09:41:020
18929943533,388cyclictest18674-21ssh11:50:100
18929943468,306cyclictest13-21rcuc/008:55:390
18929943271,90cyclictest4196-1kworker/0:2H08:16:030
18929943153,363cyclictest23227-21latency_hist08:05:010
18929942868,347cyclictest351950irq/10-yenta11:27:100
18929942847,369cyclictest11-21ksoftirqd/007:40:010
18929942767,347cyclictest351950irq/10-yenta10:37:240
18929942755,358cyclictest15077-21diskmemload09:57:090
18929942655,357cyclictest681-21kworker/u2:211:46:240
18929942451,359cyclictest13-21rcuc/009:20:200
18929942355,184cyclictest11889-21df_inode09:00:280
18929940631,313cyclictest6815-21perl10:06:310
18929940070,270cyclictest30837-21kworker/u2:011:03:060
18929936232,315cyclictest6241-21cut08:45:240
18929936232,315cyclictest13355-21munin-node09:05:130
18929923220,200cyclictest0-21swapper08:31:460
18929919326,42cyclictest4924-21runrttasks08:29:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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