You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-12-07 - 23:27
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.
Unexpectedly long latencies may be caused by SMIs
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 rack1slot2.osadl.org (updated Thu Dec 07, 2023 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1990824637,0sleep20-21swapper/207:02:482
1969924535,0sleep30-21swapper/307:00:213
1301623725,0sleep00-21swapper/006:58:140
1968123525,0sleep10-21swapper/107:00:111
200029999,0cyclictest3536-21snmpd08:41:020
339960,0migration/39385-21taskset11:07:433
339960,0migration/34700-21kthreadcore09:08:333
339960,0migration/325945-21fschecks_time09:03:313
339960,0migration/312183-21taskset10:08:563
329960,0watchdog/320617-21interrupts09:38:313
29925060,0irq/32-eth0-rx-8571-21sh12:03:303
29925060,0irq/32-eth0-rx-24214-21munin-node10:38:293
29925060,0irq/32-eth0-rx-17298-21sshd09:33:373
29925060,0irq/32-eth0-rx-0-21swapper/311:22:513
200039966,0cyclictest0-21swapper/110:55:221
149960,0migration/028771-21runrttasks11:53:400
149960,0migration/028771-21runrttasks11:53:400
149960,0migration/025803-21fschecks_time12:13:290
149960,0migration/010696-21fschecks_time11:08:300
8315050,0irq/26-0000:00:13751-21perf07:53:013
4150,0ktimersoftd/00-21swapper/011:44:010
4150,0ktimersoftd/00-21swapper/011:26:590
339950,0migration/39794-21kthreadcore07:43:343
339950,0migration/38923-21kthreadcore08:03:333
339950,0migration/35323-21munin-node11:43:273
339950,0migration/332423-21fschecks_count07:38:303
339950,0migration/332327-21kthreadcore07:08:363
339950,0migration/330129-21smart_sda07:28:383
339950,0migration/325938-21fschecks_time10:58:293
339950,0migration/325781-21taskset09:21:593
339950,0migration/321168-21kthreadcore10:53:343
339950,0migration/320556-21timerandwakeup08:33:433
339950,0migration/320047-21taskset11:33:133
339950,0migration/318469-21fschecks_time08:13:293
339950,0migration/316715-21kthreadcore11:48:363
339950,0migration/311457-21gltestperf08:08:293
339950,0migration/311111-21kthreadcore08:28:363
339950,0migration/310335-21cpuspeed_turbos12:23:263
329950,0watchdog/325995-21ssh11:17:033
329950,0watchdog/314305-21ssh10:30:473
329950,0watchdog/314000-21cpu10:13:273
29935050,0irq/33-eth0-tx-30383-21kthreadcore12:13:342
29935050,0irq/33-eth0-tx-21192-21munin-node07:53:380
29935050,0irq/33-eth0-tx-10633-21if_err_eth1.209:13:292
29935050,0irq/33-eth0-tx-0-21swapper/212:11:502
29935050,0irq/33-eth0-tx-0-21swapper/212:00:312
29935050,0irq/33-eth0-tx-0-21swapper/009:03:310
29935050,0irq/33-eth0-tx-0-21swapper/008:56:040
29935050,0irq/33-eth0-tx-0-21swapper/008:43:280
29935050,0irq/33-eth0-tx-0-21swapper/008:08:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional