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2023-03-20 - 19:32

ARM TI AM3354 @800 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of system in rack #4, slot #2
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 the 376 highest latencies:
System rack4slot2.osadl.org (updated Mon Mar 20, 2023 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502690,0irq/46-4a10000021489-1kworker/u3:107:05:310
21829999460,0cyclictest0-21swapper11:36:290
21829999371,0cyclictest0-21swapper08:51:170
21829999360,0cyclictest0-21swapper09:16:410
21829999160,0cyclictest0-21swapper08:21:460
21829999159,0cyclictest0-21swapper12:06:490
21829999159,0cyclictest0-21swapper07:21:220
21829999057,0cyclictest0-21swapper10:31:470
21829999056,0cyclictest0-21swapper10:21:230
21829999056,0cyclictest0-21swapper09:46:250
21829999054,0cyclictest0-21swapper08:26:360
21829998957,0cyclictest0-21swapper07:31:080
21829998956,0cyclictest0-21swapper08:06:050
21829998955,0cyclictest0-21swapper11:56:480
21829998955,0cyclictest0-21swapper07:12:040
7350880,0irq/45-4a10000021679-21ntp_states08:36:440
21829998867,0cyclictest0-21swapper10:56:490
21829998866,0cyclictest0-21swapper08:31:460
21829998857,0cyclictest0-21swapper12:31:240
21829998856,0cyclictest0-21swapper08:56:490
21829998855,0cyclictest0-21swapper10:16:420
21829998755,0cyclictest0-21swapper11:16:280
21829998755,0cyclictest0-21swapper08:41:560
21829998754,0cyclictest0-21swapper11:41:440
21829998754,0cyclictest0-21swapper09:11:530
21829998753,0cyclictest0-21swapper07:26:340
7350860,0irq/45-4a100000389-21kworker/u2:307:38:250
21829998666,0cyclictest0-21swapper11:31:430
21829998663,0cyclictest0-21swapper11:01:300
21829998663,0cyclictest0-21swapper07:06:290
21829998655,0cyclictest0-21swapper07:41:210
21829998653,0cyclictest0-21swapper09:21:380
21829998652,0cyclictest0-21swapper09:31:240
21829998652,0cyclictest0-21swapper07:51:280
21829998652,0cyclictest0-21swapper07:46:470
21829998651,0cyclictest0-21swapper12:21:230
21829998555,0cyclictest0-21swapper09:56:530
21829998555,0cyclictest0-21swapper09:01:330
21829998554,0cyclictest0-21swapper09:51:530
7350840,0irq/45-4a10000026508-21fw_conntrack07:16:590
21829998462,0cyclictest0-21swapper11:21:270
21829998461,0cyclictest0-21swapper12:26:500
21829998454,0cyclictest0-21swapper08:01:420
21829998450,0cyclictest0-21swapper11:46:160
21829998354,0cyclictest0-21swapper11:06:560
21829998350,0cyclictest0-21swapper10:36:450
7450820,0irq/46-4a1000002857-21perl10:51:530
7450820,0irq/46-4a10000010021-21chrt11:11:470
7350820,0irq/45-4a10000010336-21/usr/sbin/munin09:38:130
21829998250,0cyclictest0-21swapper07:56:490
21829998249,0cyclictest0-21swapper08:11:550
21829998157,0cyclictest0-21swapper09:26:530
21829998148,0cyclictest0-21swapper11:51:080
7450800,0irq/46-4a100000433-21snmpd12:03:370
7450800,0irq/46-4a10000024675-21chrt08:46:120
7350800,0irq/45-4a10000026955-21runrttasks10:26:460
21829998050,0cyclictest0-21swapper10:11:110
21829998047,0cyclictest0-21swapper08:20:480
7450790,0irq/46-4a10000029796-21dpkg12:10:590
7350790,0irq/45-4a10000031351-21cut09:06:060
7350790,0irq/45-4a10000018541-21mailstats10:01:500
21829997956,0cyclictest0-21swapper12:16:420
20382790,0sleep01794-1kworker/u3:010:49:280
7350780,0irq/45-4a10000021827-21cyclictest11:26:210
7350780,0irq/45-4a10000020191-21grep10:06:460
7350780,0irq/45-4a10000011877-21chrt09:41:560
7450770,0irq/46-4a10000031932-21irqstats10:41:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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