You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-19 - 06:30
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 rackfslot7.osadl.org (updated Sat Jul 19, 2025 00:46:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4026746997416,39cyclictest4155668-21collect222:55:224
4026746997113,39cyclictest4184585-21sed23:45:224
4026746997032,19cyclictest4121401-21sh21:55:154
4026746997012,39cyclictest4143112-21/usr/sbin/munin22:35:154
4026746996830,19cyclictest873-21mta-sts-daemon21:00:014
4026746996829,20cyclictest1088-21runrttasks20:46:554
4026746996810,39cyclictest4147607-21sed22:40:244
4026744996325,19cyclictest411rcuc/200:10:192
4026746996122,39cyclictest871-21mta-sts-daemon19:25:474
402674699603,38cyclictest878-21mta-sts-daemon00:31:464
4026749995920,39cyclictest0-21swapper/721:00:177
4026746995918,40cyclictest4191932-21df_inode00:00:144
4026746995817,19cyclictest4062285-21ntpq20:10:204
4026746995617,38cyclictest0-21swapper/420:31:534
4026746995617,19cyclictest4116428-21ntpq21:45:224
4026746995536,18cyclictest4047731-21basename19:45:154
4026746995517,19cyclictest4097727-21munin-run21:15:024
4026746995514,19cyclictest4188788-21awk23:55:144
4026746995419,35cyclictest0-21swapper/423:21:094
4026746995419,15cyclictest0-21swapper/421:19:234
4026746995419,15cyclictest0-21swapper/400:07:434
4026746995414,39cyclictest0-21swapper/420:40:054
4026749995353,0cyclictest0-21swapper/720:20:167
4026746995319,34cyclictest0-21swapper/422:06:134
4026746995319,34cyclictest0-21swapper/400:22:124
4026746995319,15cyclictest0-21swapper/423:51:004
4026746995319,15cyclictest0-21swapper/420:05:534
4026746995314,39cyclictest0-21swapper/421:43:124
4026746995314,39cyclictest0-21swapper/421:28:314
4026746995314,39cyclictest0-21swapper/421:20:584
4026746995314,39cyclictest0-21swapper/420:28:094
4026746995314,39cyclictest0-21swapper/419:57:314
4026746995314,39cyclictest0-21swapper/419:43:494
4026746995314,39cyclictest0-21swapper/400:36:054
4026746995314,20cyclictest6243-21/usr/sbin/munin00:15:174
4026746995314,19cyclictest4150049-21ntpq22:45:214
4026742995313,39cyclictest877-21mta-sts-daemon19:45:150
4026749995213,39cyclictest0-21swapper/720:05:187
4026748995213,19cyclictest0-21swapper/620:35:206
4026746995233,19cyclictest0-21swapper/423:37:484
4026746995233,19cyclictest0-21swapper/423:06:124
4026746995213,39cyclictest0-21swapper/421:08:414
4026746995212,19cyclictest4992-21awk00:10:244
4026746995211,0cyclictest0-21swapper/420:15:234
4026745995233,19cyclictest0-21swapper/323:50:193
4026744995213,20cyclictest0-21swapper/222:20:182
4026744995213,20cyclictest0-21swapper/222:20:172
4026749995111,39cyclictest0-21swapper/722:00:187
4026746995133,18cyclictest0-21swapper/423:18:344
4026746995133,18cyclictest0-21swapper/423:01:024
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional