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2021-12-03 - 08:52

ARMv7 Processor rev 5 (v7l), Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #5, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack5slot7.osadl.org (updated Thu Dec 02, 2021 12:44:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4226224482197,100sleep00-21swapper06:50:080
4553211740,4sleep023627-1kworker/u3:406:52:070
45689910726,36cyclictest0-21swapper11:04:580
45689910529,58cyclictest0-21swapper10:42:040
45689910429,63cyclictest0-21swapper09:45:550
45689910418,23cyclictest2806-21df09:27:400
45689910415,65cyclictest30968-21ls10:56:540
45689910415,50cyclictest31104-21ls09:13:580
45689910411,67cyclictest3402-21sh11:12:070
45689910316,24cyclictest28670-21apt-get09:07:270
45689910238,47cyclictest0-21swapper08:02:000
45689910225,62cyclictest0-21swapper12:08:500
45689910137,46cyclictest0-21swapper12:13:520
45689910127,62cyclictest0-21swapper08:18:120
45689910118,62cyclictest23170-21fw_conntrack10:31:440
45689910116,46cyclictest9548-21memory09:48:210
45689910113,64cyclictest17028-21ssh11:52:140
45689910034,49cyclictest0-21swapper07:22:510
45689910033,53cyclictest0-21swapper08:13:270
45689910025,29cyclictest0-21swapper10:57:460
45689910020,22cyclictest19874-21users10:19:020
45689910018,22cyclictest28399-21df_inode10:47:480
45689910015,25cyclictest1203-21df09:22:500
45689910015,22cyclictest7132-21df11:22:400
4568999927,60cyclictest0-21swapper07:08:160
4568999923,65cyclictest0-21swapper08:23:110
4568999915,21cyclictest20446-21apt-get12:02:250
4568999914,63cyclictest14006-21ssh11:42:510
4568999913,39cyclictest11116-21ls09:53:200
4568999833,50cyclictest0-21swapper07:33:120
4568999832,50cyclictest0-21swapper09:59:200
4568999831,53cyclictest0-21swapper07:28:190
4568999827,61cyclictest0-21swapper08:39:550
4568999819,43cyclictest25950-21irqstats12:18:070
4568999816,64cyclictest14184-21df10:02:410
4568999814,70cyclictest0-21swapper10:25:070
4568999814,47cyclictest5605-21irqstats11:18:120
4568999812,47cyclictest27175-21grep10:43:470
4568999811,51cyclictest27543-21ssh09:03:110
4568999730,52cyclictest0-21swapper08:08:350
4568999730,52cyclictest0-21swapper07:47:480
4568999730,21cyclictest18332-21ssh10:14:320
4568999727,35cyclictest0-21swapper09:18:570
4568999727,28cyclictest0-21swapper07:02:500
4568999718,59cyclictest24168-21df08:47:300
4568999717,42cyclictest3809-21df_inode11:12:580
4568999712,64cyclictest12889-21ssh11:39:040
4568999712,48cyclictest8913-21ssh11:27:540
4568999711,26cyclictest16733-21ssh10:09:520
4568999710,49cyclictest6486-21ssh09:38:420
4568999618,59cyclictest18968-21df11:57:410
4568999616,22cyclictest11246-21users11:34:110
4568999612,63cyclictest31818-21kworker/u2:009:33:510
4568999527,59cyclictest0-21swapper07:13:150
4568999522,28cyclictest0-21swapper07:43:160
4568999513,25cyclictest12622-21wget07:37:180
4568999512,62cyclictest26895-21ssh09:01:360
4568999321,56cyclictest0-21swapper07:17:500
4568999314,61cyclictest15853-21ssh11:48:130
4568999313,59cyclictest22276-21memory08:27:590
4568999312,31cyclictest25949-21ssh08:56:300
4568999312,23cyclictest24020-21ssh10:33:490
4568999227,18cyclictest0-21swapper08:42:090
4568999119,24cyclictest5585-21munin-node06:57:100
456899899,59cyclictest15788-21grep07:52:560
4568998917,22cyclictest18031-21users08:03:240
4568998910,56cyclictest22813-21latency_hist08:37:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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