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2025-05-02 - 12:48
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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 100 highest latencies:
System rackfslot4.osadl.org (updated Tue Apr 29, 2025 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1000521250,1sleep010008-21wc21:10:340
1906221230,2chrt19056-21ntpq20:22:310
2630621200,3chrt24755-21sendmail-msp21:42:510
2686221190,3chrt26863-21ls20:36:290
2279021180,3chrt22786-21ntpq22:43:160
729021160,2chrt4164-21sendmail-msp00:27:010
608121160,2chrt6082-21sh23:16:440
2914821150,2chrt27074-21sendmail-msp00:04:270
1523821150,2chrt15239-21sleep21:20:040
2955021140,3chrt29551-21latency_hist19:40:080
688721130,3chrt6888-21sleep22:11:010
1373221130,2chrt13733-21sleep00:40:060
2251621110,1chrt22512-21sshd19:26:290
34721100,2chrt344-21ld21:56:240
1057621100,2chrt10561-21diskstats20:06:110
1427021060,2chrt14269-21apt-get19:10:120
1010421050,2chrt10105-21sleep00:32:250
275422920,2sleep027543-21ssh22:54:120
91332880,2sleep09134-21cut22:15:490
63552870,2chrt6324-21diskstats21:01:500
83602830,2sleep08359-21awk21:05:250
202362830,1sleep020237-21cat20:25:150
21332820,2sleep02134-21idleruntime-cro23:10:000
297172770,1sleep029714-21smart_sda00:05:380
247242740,2sleep024725-21grep19:30:370
128692699,46sleep012878-21ntpq19:06:270
312062610,2sleep031209-21cpu23:01:160
176272560,1sleep017628-21date23:40:080
186952537,38sleep015227-21sendmail-msp21:28:230
26172520,3chrt2615-21/usr/sbin/munin22:01:480
170702510,3chrt17029-21ntpq21:23:420
258892502,41sleep025892-21ntpq23:57:070
183172500,3chrt18315-21/usr/sbin/munin23:41:460
247592492,6sleep024731-21munin-run21:40:030
48972482,39sleep04899-21diskstats00:21:390
14145904819,21cyclictest0-21swapper22:28:060
135102480,3chrt13492-21ssh23:31:550
22872470,2chrt2284-21apt-config19:50:100
171312473,35sleep017134-21diskstats19:15:380
195672460,2chrt19559-21aten2.4-expect19:20:520
14145904617,22cyclictest0-21swapper23:14:010
1414590456,11cyclictest13131-21ntpq22:22:540
14145904521,17cyclictest10374-21ssh23:25:230
14145904518,20cyclictest0-21swapper22:49:250
14145904515,22cyclictest0-21swapper22:38:340
14145904510,17cyclictest27806-21sendmail-msp20:43:540
41072442,34sleep04110-21ntpq20:56:120
1414590445,19cyclictest9148-21perl23:22:330
14145904416,20cyclictest0-21swapper22:32:500
14145904413,23cyclictest0-21swapper23:54:530
14145904411,16cyclictest24755-21sendmail-msp21:47:130
14145904410,17cyclictest948-21seq19:47:190
1414590435,18cyclictest28984-21memory22:56:080
1414590434,19cyclictest31249-21ssh00:10:250
14145904310,16cyclictest7658-21apt-get20:00:350
14145904310,16cyclictest1844-21sendmail-msp22:07:320
205442422,33sleep020552-21sshd21:31:280
1414590425,18cyclictest31033-21hddtemp_smartct20:46:230
14145904216,20cyclictest0-21swapper21:52:450
14145904213,22cyclictest0-21swapper00:19:140
14145904118,16cyclictest19935-21ssh23:45:230
14145904114,9cyclictest29477-21sendmail-msp19:42:300
1414590406,27cyclictest14000-21python320:11:320
1414590405,9cyclictest23150-21df20:30:270
1414590404,9cyclictest5121-21apt-get19:55:470
14145904013,21cyclictest0-21swapper20:17:060
14145903817,14cyclictest0-21swapper20:50:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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