You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-15 - 06:04
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 50 highest latencies:
System rackcslot3.osadl.org (updated Sat Nov 15, 2025 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81820rcu_preempt3-21ksoftirqd/000:20:170
90050780irq/17-ehci_hcd946-21usb-storage21:43:340
81720rcu_preempt7679-21latency23:20:181
81720rcu_preempt0-21swapper/119:06:051
81710rcu_preempt0-21swapper/023:15:160
81690rcu_preempt9283-21ssh00:25:100
81690rcu_preempt0-21swapper/121:35:191
81690rcu_preempt0-21swapper/100:25:251
81690rcu_preempt0-21swapper/021:36:190
81680rcu_preempt25611-21cron21:54:571
81680rcu_preempt16046-21open_inodes22:35:210
81680rcu_preempt14141-1kworker/1:2H23:11:551
81680rcu_preempt0-21swapper/122:38:581
81670rcu_preempt17842-21/usr/sbin/munin23:40:141
81670rcu_preempt14589-21munin-run21:34:581
81670rcu_preempt11805-21df_abs19:45:161
81670rcu_preempt0-21swapper/122:28:241
81660rcu_preempt9097-21latency_hist00:24:581
81660rcu_preempt26584-21irqstats22:55:170
81660rcu_preempt15054-21turbostat.cron22:34:570
81660rcu_preempt0-21swapper/123:35:401
81650rcu_preempt5836-21ssh21:18:270
81650rcu_preempt4784-21ls23:15:161
81650rcu_preempt25634-21sh23:54:431
81650rcu_preempt20990-21grep20:20:181
81650rcu_preempt0-21swapper/123:33:141
81650rcu_preempt0-21swapper/100:09:561
81650rcu_preempt0-21swapper/023:11:500
81650rcu_preempt0-21swapper/022:05:560
81640rcu_preempt2052-21grep19:05:190
81640rcu_preempt15724-21timerandwakeup00:35:231
81640rcu_preempt0-21swapper/122:03:341
81640rcu_preempt0-21swapper/120:47:411
81630rcu_preempt0-21swapper/120:55:211
81630rcu_preempt0-21swapper/119:32:381
81630rcu_preempt0-21swapper/023:29:590
81630rcu_preempt0-21swapper/023:25:250
81620rcu_preempt19457-21ssh21:42:441
81620rcu_preempt13950-21/usr/sbin/munin19:54:581
81620rcu_preempt0-21swapper/122:55:191
81620rcu_preempt0-21swapper/121:16:361
81620rcu_preempt0-21swapper/022:20:390
81620rcu_preempt0-21swapper/021:12:000
81620rcu_preempt0-21swapper/019:33:150
81610rcu_preempt10215-21mailstats21:25:220
81610rcu_preempt0-21swapper/122:30:231
81610rcu_preempt0-21swapper/121:20:221
81610rcu_preempt0-21swapper/121:00:171
81610rcu_preempt0-21swapper/120:00:191
81610rcu_preempt0-21swapper/022:40:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional