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2023-01-27 - 14:39

x86 Intel Pentium @133 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #3, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l25000000 -m -n -a0 -t1 -p99 -i800 -h1000 -q
Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack3slot5.osadl.org (updated Fri Jan 27, 2023 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
673503030,0irq/11-sym53c8x14699-21cron07:04:400
673502930,0irq/11-sym53c8x26715-21latency_hist07:59:460
673502790,0irq/11-sym53c8x26894-21which10:20:120
673502780,0irq/11-sym53c8x29733-21sed10:31:040
673502760,0irq/11-sym53c8x25991-21ls07:55:380
673502730,0irq/11-sym53c8x23755-21cat07:45:380
673502720,0irq/11-sym53c8x3214-21ssh10:55:060
673502720,0irq/11-sym53c8x16389-21grep07:10:430
673502690,0irq/11-sym53c8x24274-21irqstats10:10:010
673502670,0irq/11-sym53c8x22597-21ssh12:11:580
673502670,0irq/11-sym53c8x19574-21ssh12:00:420
673502650,0irq/11-sym53c8x25569-21awk12:26:290
673502650,0irq/11-sym53c8x24998-21latency_hist12:24:450
673502630,0irq/11-sym53c8x2619-21runrttasks11:31:330
673502630,0irq/11-sym53c8x23668-21ssh10:06:250
673502630,0irq/11-sym53c8x14419-21kworker/u2:009:36:030
673502610,0irq/11-sym53c8x8100-21munin-node11:15:010
673502610,0irq/11-sym53c8x7878-21mailstats09:00:070
2017502610,0irq/15-NE200032130-21apt10:40:300
1012610,0ktimersoftd/017452-21switchtime09:41:170
673502600,0irq/11-sym53c8x28233-21ntp_states10:25:220
673502600,0irq/11-sym53c8x208331sleep12:05:230
673502600,0irq/11-sym53c8x13299-21ssh09:24:430
673502590,0irq/11-sym53c8x1297-21munin-node10:47:000
673502570,0irq/11-sym53c8x23143-21apt-get12:15:340
2017502570,0irq/15-NE20007664-21apt08:59:360
673502550,0irq/11-sym53c8x16982-21ssh11:50:420
673502520,0irq/11-sym53c8x10783-21ssh11:26:090
673502510,0irq/11-sym53c8x8998-1kworker/u3:109:25:010
673502510,0irq/11-sym53c8x18248-21ssh11:55:250
16992500,0watchdog/020672-21ssh09:55:070
673502490,0irq/11-sym53c8x20129-21apt-get07:30:110
673502490,0irq/11-sym53c8x18358-21ssh09:45:020
673502480,0irq/11-sym53c8x2619-21runrttasks09:10:230
673502450,0irq/11-sym53c8x19604-21ssh09:49:570
673502440,0irq/11-sym53c8x11258-21runrttasks09:15:390
673502440,0irq/11-sym53c8x0-21swapper08:40:430
2017502440,0irq/15-NE20009915-21diskmemload11:05:010
673502420,0irq/11-sym53c8x31853-21ssh10:39:410
673502420,0irq/11-sym53c8x28840-21latency_hist12:39:460
673502420,0irq/11-sym53c8x17899-21apt-get07:20:180
673502410,0irq/11-sym53c8x4596-21sh11:00:290
2017502410,0irq/15-NE200027295-21ssh12:32:420
2017502410,0irq/15-NE20002716-21grep08:35:550
2017502410,0irq/15-NE200016743-21sed11:49:450
673502400,0irq/11-sym53c8x6616-21cron11:09:480
673502400,0irq/11-sym53c8x31593-21switchtime08:20:420
2017502400,0irq/15-NE200029382-21nfs_client08:10:460
673502390,0irq/11-sym53c8x9923-21basename09:09:370
673502390,0irq/11-sym53c8x17031-21munin-node07:14:490
2017502390,0irq/15-NE20002877-21ssh10:53:170
2017502380,0irq/15-NE200028424-21interrupts08:05:580
2017502380,0irq/15-NE200026633-21ssh10:19:170
2017502380,0irq/15-NE200015257-21rm11:43:120
2017502360,0irq/15-NE200014067-21ssh11:39:150
673502350,0irq/11-sym53c8x9136-21ssh11:20:060
673502350,0irq/11-sym53c8x0-21swapper08:46:210
673502320,0irq/11-sym53c8x1153-21jbd2/sda1-808:29:430
673502320,0irq/11-sym53c8x0-21swapper08:28:180
158519923141,0cyclictest1153-21jbd2/sda1-808:14:430
2017502280,0irq/15-NE200021969-21irqstats10:00:040
673502250,0irq/11-sym53c8x15594-21idleruntime-cro09:34:360
673502240,0irq/11-sym53c8x22132-21idleruntime-cro07:39:360
2017502240,0irq/15-NE20006186-21missed_timers08:51:010
2017502220,0irq/15-NE200022326-21which07:39:590
673502210,0irq/11-sym53c8x0-21swapper07:49:490
673502180,0irq/11-sym53c8x18919-21mailstats07:24:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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