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2023-03-27 - 02:02

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 100, highest latencies:
System rack4slot2.osadl.org (updated Mon Mar 27, 2023 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502750,0irq/46-4a10000013625-1kworker/u3:219:05:140
7350940,0irq/45-4a10000018537-1kworker/u3:521:06:350
374829016,0sleep03755-21ntp_states20:21:260
7450830,0irq/46-4a100000433-21snmpd22:53:540
13963998252,0cyclictest0-21swapper23:06:180
7450810,0irq/46-4a10000025347-21/usr/sbin/munin21:26:360
294052810,0chrt27458-1kworker/u3:221:40:330
7450800,0irq/46-4a10000023350-21seq22:56:170
7450800,0irq/46-4a10000022647-21ntpq21:16:300
7450800,0irq/46-4a10000018351-21if_eth000:16:120
7450800,0irq/46-4a10000017446-21df_inode19:15:590
7450800,0irq/46-4a10000012469-21wc22:25:360
7350800,0irq/45-4a10000058-21kswapd023:36:160
7350800,0irq/45-4a10000026589-1kworker/u3:121:41:040
164002800,0chrt16329-1kworker/u3:220:58:430
13963998055,0cyclictest0-21swapper19:05:490
91702790,0sleep031591-1kworker/u3:020:36:330
7450790,0irq/46-4a1000005144-1kworker/u3:220:31:330
7450790,0irq/46-4a1000005048-21sed20:25:580
7450790,0irq/46-4a10000024986-21fw_forwarded_lo23:01:100
7450790,0irq/46-4a10000024265-21memory21:21:210
7450790,0irq/46-4a10000023426-21fw_conntrack00:31:070
7450790,0irq/46-4a10000021906-21sendmail-msp19:35:340
7450790,0irq/46-4a10000020211-21chrt21:10:480
7450790,0irq/46-4a10000011005-1kworker/u3:423:56:180
7450790,0irq/46-4a10000010269-21runrttasks20:41:030
164532790,0chrt15359-1kworker/u3:022:36:130
7450780,0irq/46-4a1000009942-21seq22:16:320
7450780,0irq/46-4a1000008530-1kworker/u3:122:47:330
7450780,0irq/46-4a1000006435-21grep23:41:250
7450780,0irq/46-4a1000003976-21sendmail-mta23:35:350
7450780,0irq/46-4a1000003961-21wget22:00:490
7450780,0irq/46-4a10000030431-21/usr/sbin/munin23:16:300
7450780,0irq/46-4a10000029230-21ls20:01:250
7450780,0irq/46-4a10000024464-21runrttasks19:45:460
7450780,0irq/46-4a10000021783-21sshd00:26:120
7450780,0irq/46-4a10000016466-21tune2fs00:11:090
7450780,0irq/46-4a10000016329-1kworker/u3:221:01:100
7450780,0irq/46-4a10000014232-21/usr/sbin/munin22:30:480
7450780,0irq/46-4a1000001178-21cron20:15:320
7350780,0irq/45-4a10000031235-21runrttasks21:45:450
7350780,0irq/45-4a1000001351-21ntp_states23:26:270
200212780,0sleep019266-1kworker/u3:119:26:070
178532780,0chrt17321-1kworker/u3:222:40:530
160612785,0sleep016111-21idleruntime19:10:500
13963997844,0cyclictest0-21swapper23:11:150
7450770,0irq/46-4a1000009536-21diskstats23:50:590
7450770,0irq/46-4a10000021788-1kworker/u3:119:36:150
7450770,0irq/46-4a10000018457-1kworker/u3:000:21:220
7450770,0irq/46-4a10000013916-21latency20:51:170
7350770,0irq/45-4a100000433-21snmpd19:52:410
7350770,0irq/45-4a10000026954-21kworker/u2:319:56:090
13963997751,0cyclictest0-21swapper20:47:040
7450760,0irq/46-4a1000005580-21grep22:05:350
7450760,0irq/46-4a100000372-21runrttasks23:24:300
7450760,0irq/46-4a10000027458-1kworker/u3:221:35:300
7450760,0irq/46-4a1000001645-21df_inode20:15:580
7450760,0irq/46-4a10000015699-21runrttasks00:08:320
7450760,0irq/46-4a10000013718-21sed00:01:390
73552760,0sleep06788-1kworker/u3:022:10:470
7450750,0irq/46-4a1000008583-21chrt23:46:390
7450750,0irq/46-4a10000031023-21/usr/sbin/munin20:06:250
7450750,0irq/46-4a10000026589-1kworker/u3:121:51:030
7450750,0irq/46-4a1000002220-21seq21:55:440
7450750,0irq/46-4a10000011161-21fschecks_count22:21:060
7450740,0irq/46-4a100000433-21snmpd19:22:290
7450740,0irq/46-4a10000023985-21runrttasks19:42:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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