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2022-06-27 - 02:28

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 highest latencies:
System rack3slot5.osadl.org (updated Mon Jun 27, 2022 00:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
674503070,0irq/11-sym53c8x26845-21ntpq19:10:500
674502910,0irq/11-sym53c8x22829-21munin-node21:20:320
674502870,0irq/11-sym53c8x5214-21awk00:31:480
674502860,0irq/11-sym53c8x4806-21latency_hist00:30:330
674502830,0irq/11-sym53c8x15236-21apt-get20:45:510
2003502820,0irq/15-NE200027179-21ssh23:48:130
674502780,0irq/11-sym53c8x4202-21sendmail_mailst22:15:520
674502760,0irq/11-sym53c8x362-21ssh22:00:320
674502760,0irq/11-sym53c8x12310-21interrupts20:31:370
16992760,0watchdog/014676-21ssh22:57:410
674502750,0irq/11-sym53c8x16810-21grep20:51:430
16992720,0watchdog/02877-21sort19:50:430
674502670,0irq/11-sym53c8x29808-21ssh21:47:360
674502650,0irq/11-sym53c8x9261-21nfs_client22:37:090
674502650,0irq/11-sym53c8x24440-21ssh23:37:390
16992640,0watchdog/024588-21wc21:27:320
674502620,0irq/11-sym53c8x27611-21mailstats23:50:540
674502590,0irq/11-sym53c8x4017-21apt-get19:55:510
674502580,0irq/11-sym53c8x31265-21pluginstate19:31:340
674502570,0irq/11-sym53c8x21221-21cron23:25:450
674502570,0irq/11-sym53c8x16266-21ssh23:05:530
674502560,0irq/11-sym53c8x30863-21kworker/u2:021:05:520
16992560,0watchdog/010679-21aten_r3power_cu20:25:400
674502550,0irq/11-sym53c8x26399-21latency_hist21:35:280
674502550,0irq/11-sym53c8x18902-21ssh23:16:060
674502540,0irq/11-sym53c8x2965-21timerandwakeup00:22:310
674502540,0irq/11-sym53c8x2340-21snmpd21:00:520
2003502540,0irq/15-NE200021729-21munin-run21:15:230
674502520,0irq/11-sym53c8x8107-21netstat22:32:240
674502520,0irq/11-sym53c8x32204-21munin-node00:10:490
674502520,0irq/11-sym53c8x21197-21kworker/u2:123:30:330
674502520,0irq/11-sym53c8x17462-21ntp_states20:55:520
674502510,0irq/11-sym53c8x32433-21kworker/u2:200:15:540
674502500,0irq/11-sym53c8x7388-21ssh22:30:320
2003502500,0irq/15-NE20002610-21runrttasks19:44:220
674502490,0irq/11-sym53c8x479-21sshd22:00:400
674502490,0irq/11-sym53c8x28950-21ssh23:56:100
2003502490,0irq/15-NE20008549-21ssh00:44:440
674502480,0irq/11-sym53c8x7398-21sort20:11:010
674502470,0irq/11-sym53c8x22943-21ssh21:20:480
674502470,0irq/11-sym53c8x20750-21latency23:22:320
2003502470,0irq/15-NE200011-21rcu_preempt00:37:290
16992470,0watchdog/021723-21diskmemload23:01:490
674502460,0irq/11-sym53c8x30796-21awk00:05:370
2003502450,0irq/15-NE20001303-21kworker/u2:122:05:530
674502440,0irq/11-sym53c8x6047-21sh22:25:230
674502440,0irq/11-sym53c8x27136-21netstat21:37:250
2003502440,0irq/15-NE200031959-21ssh00:09:540
2003502440,0irq/15-NE200028057-21kworker/u2:121:42:190
674502430,0irq/11-sym53c8x5134-21apt-get20:00:580
2003502430,0irq/15-NE200018485-21ssh23:13:540
2003502430,0irq/15-NE200013752-21ssh22:55:090
2003502420,0irq/15-NE200031490-21ssh21:55:020
2003502420,0irq/15-NE200012436-21ssh22:49:520
674502410,0irq/11-sym53c8x26124-21munin-run23:45:320
674502410,0irq/11-sym53c8x1150-21jbd2/sda1-820:40:280
674502400,0irq/11-sym53c8x9494-21munin-node20:21:370
16992400,0watchdog/02285-21missed_timers19:46:430
674502390,0irq/11-sym53c8x13868-21runrttasks20:40:200
674502380,0irq/11-sym53c8x8501-21apt-get20:15:520
674502370,0irq/11-sym53c8x29474-21cron19:25:200
2003502370,0irq/15-NE200027779-21munin-node19:16:050
674502360,0irq/11-sym53c8x29945-21chrt19:26:170
2003502360,0irq/15-NE200010010-21ssh22:40:370
2003502350,0irq/15-NE200031956-21apt-get19:35:590
674502340,0irq/11-sym53c8x6250-21idleruntime20:05:450
2003502320,0irq/15-NE20003814-21ssh22:13:350
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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