You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-17 - 02:00
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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Tue Sep 16, 2025 12:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2030699234,18cyclictest0-21swapper/008:49:060
2030899220,21cyclictest823-21systemd-network11:01:442
2030899220,18cyclictest0-21swapper/210:32:002
2030899200,20cyclictest0-21swapper/208:52:492
2030899200,18cyclictest3245-21apache208:25:012
2030799203,16cyclictest1-21systemd10:05:011
2030899192,1cyclictest0-21swapper/207:23:312
20308991917,1cyclictest0-21swapper/209:04:302
20308991915,3cyclictest4734-21smtp07:39:282
20307991917,1cyclictest0-21swapper/111:10:361
20307991917,1cyclictest0-21swapper/111:10:361
20307991916,1cyclictest0-21swapper/112:35:001
20307991914,2cyclictest4532-21H212:26:331
20307991914,2cyclictest4532-21H212:26:331
2030799190,18cyclictest30816-21munin-run10:20:011
2030799190,17cyclictest25076-21nfsd409:10:191
20306991917,1cyclictest0-21swapper/010:01:390
20306991916,2cyclictest17456-21systemctl10:50:220
20308991816,1cyclictest0-21swapper/210:03:242
2030799182,15cyclictest16284-21nfsd408:55:191
2030799182,15cyclictest0-21swapper/111:49:271
2030799182,15cyclictest0-21swapper/109:30:011
2030799182,15cyclictest0-21swapper/109:30:011
2030799182,15cyclictest0-21swapper/107:49:091
20307991816,1cyclictest4538-21H212:26:331
20307991816,1cyclictest0-21swapper/109:34:411
20307991814,3cyclictest4536-21H212:26:331
20307991813,3cyclictest20922-21latency_hist11:55:001
2030799180,17cyclictest20357-21sshd09:03:581
2030799180,17cyclictest11729-21grep09:45:151
2030699182,2cyclictest29077-21chrt11:12:390
2030699182,2cyclictest29077-21chrt11:12:390
20306991816,1cyclictest0-21swapper/007:28:090
20306991814,3cyclictest22550-21sed10:05:030
2030699180,17cyclictest0-21swapper/012:25:000
2030699180,16cyclictest4593-21H212:26:330
2030699180,16cyclictest4536-21H212:26:330
2030699180,15cyclictest4536-21H212:26:330
2030899172,15cyclictest28-21ksoftirqd/212:24:462
20308991716,1cyclictest28-21ksoftirqd/210:16:442
20308991715,1cyclictest0-21swapper/211:55:172
20308991715,1cyclictest0-21swapper/209:23:002
20308991715,1cyclictest0-21swapper/208:20:022
20308991715,1cyclictest0-21swapper/207:15:202
20308991714,2cyclictest9703-21expr08:45:152
20308991714,2cyclictest7147-21sed07:40:252
20308991714,2cyclictest29746-21awk11:15:142
20308991714,2cyclictest22838-21/usr/sbin/munin10:05:172
20308991714,2cyclictest15507-21latency_hist10:50:012
20308991713,3cyclictest9837-21cat11:35:142
20308991713,3cyclictest9837-21cat11:35:142
20308991713,3cyclictest8234-21sessionclean09:39:012
2030899171,15cyclictest0-21swapper/207:25:212
2030899170,2cyclictest9599-21grep12:30:182
2030899170,2cyclictest8245-21sort10:35:162
2030899170,2cyclictest4593-21H212:26:332
2030899170,2cyclictest4538-21H212:26:332
2030899170,2cyclictest3692-21master10:56:312
2030899170,2cyclictest2707-21lxd11:41:022
2030899170,2cyclictest16799-21sed09:55:012
2030899170,2cyclictest16799-21sed09:55:012
2030899170,2cyclictest12506-21sed07:50:232
2030899170,17cyclictest0-21swapper/209:07:242
2030899170,16cyclictest9109-21turbostat08:45:012
2030899170,16cyclictest7851-21postgres12:27:522
2030899170,16cyclictest5917-21sed11:25:212
2030899170,16cyclictest4536-21H212:26:332
2030899170,16cyclictest28330-21ntp_kernel_pll_11:10:192
2030899170,16cyclictest28330-21ntp_kernel_pll_11:10:182
2030899170,16cyclictest26140-21cron12:09:552
2030899170,16cyclictest25508-21sort09:10:232
2030899170,16cyclictest22052-21open_files07:10:222
2030899170,16cyclictest21777-21/usr/sbin/munin08:10:152
2030899170,16cyclictest18602-21cpuspeed_turbos11:50:132
2030899170,16cyclictest16281-21needreboot11:45:182
2030899170,16cyclictest15673-21fschecks_time08:55:162
20307991716,1cyclictest21-21ksoftirqd/109:22:061
20307991716,1cyclictest21-21ksoftirqd/107:19:231
20307991715,1cyclictest0-21swapper/110:35:221
20307991715,1cyclictest0-21swapper/109:38:571
20307991714,2cyclictest995-21irqbalance08:17:121
20307991714,2cyclictest893-21systemd-logind08:52:071
20307991714,2cyclictest6407-21switchtime10:30:211
20307991714,2cyclictest4536-21H212:26:331
20307991714,2cyclictest3441-21gsd-color08:29:391
20307991714,2cyclictest32568-21apt-key11:20:011
20307991714,2cyclictest31929-21/usr/sbin/munin10:20:161
20307991714,2cyclictest27188-21fschecks_count12:05:171
20307991714,2cyclictest26526-21cron11:10:001
20307991714,2cyclictest11906-21nfsd407:50:191
20307991714,2cyclictest1104-21lldpd12:26:451
20307991714,2cyclictest10006-21cat08:45:151
2030799171,15cyclictest24854-21chrt10:06:081
2030799170,2cyclictest6375-21turbostat08:40:011
2030799170,2cyclictest4593-21H212:26:331
2030799170,2cyclictest4536-21H212:26:331
2030799170,2cyclictest4532-21H212:26:331
2030799170,2cyclictest4532-21H212:26:331
2030799170,2cyclictest27529-21cpuspeed_turbos08:20:141
2030799170,2cyclictest25097-21awk12:00:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional