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2026-03-16 - 22:30
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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 100 highest latencies:
System rackaslot8.osadl.org (updated Mon Mar 16, 2026 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109132311281,20sleep10-21swapper/107:07:561
107682282251,20sleep20-21swapper/207:06:042
108292266235,21sleep00-21swapper/007:06:490
109102265233,20sleep30-21swapper/307:07:543
11462610,0sleep20-21swapper/212:05:112
225042590,0sleep10-21swapper/108:40:201
36612570,0sleep10-21swapper/112:25:321
205762560,0sleep00-21swapper/011:56:400
186392560,0sleep20-21swapper/209:39:312
113092560,0sleep20-21swapper/210:13:562
106982560,0sleep10-21swapper/109:15:081
297402550,0sleep30-21swapper/310:25:023
178352540,0sleep00-21swapper/007:20:200
269012530,0sleep20-21swapper/211:40:362
183152200,1sleep00-21swapper/012:35:130
46552190,0sleep10-21swapper/110:10:021
164612190,0sleep10-21swapper/109:37:491
68012150,0sleep10-21swapper/110:50:111
268792140,0sleep10-21swapper/111:40:361
172902140,0sleep20-21swapper/209:57:532
1118199110,9cyclictest275-21systemd-journal07:40:010
111899994,3cyclictest275-21systemd-journal08:00:002
111859992,4cyclictest673-21munin-run12:05:001
20527280,0sleep10-21swapper/112:35:531
17828280,0sleep00-21swapper/012:35:010
17225280,0sleep30-21swapper/310:17:053
111949985,2cyclictest22929-21ssh09:41:263
111899986,2cyclictest28-21ksoftirqd/207:55:022
111899984,3cyclictest658-21snmpd10:07:522
111899982,3cyclictest18689-21munin-run09:20:012
111819983,3cyclictest8399-21turbostat11:50:010
1925270,0sleep10-21swapper/109:48:521
18687270,1sleep00-21swapper/009:39:340
111949976,1cyclictest0-21swapper/310:00:123
111949975,1cyclictest34-21ksoftirqd/307:35:013
111949973,3cyclictest275-21systemd-journal11:45:533
111949973,1cyclictest0-21swapper/311:23:013
111949973,1cyclictest0-21swapper/311:14:303
111899974,2cyclictest28-21ksoftirqd/208:40:012
111899970,7cyclictest0-21swapper/209:47:402
111899970,4cyclictest14641-21munin-run10:55:002
111859973,3cyclictest658-21snmpd09:53:221
111859973,3cyclictest275-21systemd-journal08:51:311
111859970,7cyclictest0-21swapper/107:25:131
111859970,6cyclictest27578-21idleruntime-cro09:45:011
111819974,2cyclictest658-21snmpd11:43:550
111819974,2cyclictest25433-21ntpq11:20:150
111819973,3cyclictest658-21snmpd09:25:280
111819973,3cyclictest275-21systemd-journal08:35:010
111819973,3cyclictest26972-21cron09:25:000
111819973,3cyclictest13881-21date10:35:010
111819973,1cyclictest0-21swapper/012:12:190
111819973,1cyclictest0-21swapper/011:00:230
111819973,1cyclictest0-21swapper/010:50:190
111819972,3cyclictest275-21systemd-journal12:14:590
111819972,3cyclictest275-21systemd-journal10:20:000
111819972,3cyclictest275-21systemd-journal07:50:010
4075260,0sleep00-21swapper/011:07:270
15669260,0sleep10-21swapper/108:29:561
12456260,0sleep30-21swapper/309:35:163
111949963,2cyclictest9407-21/usr/sbin/munin11:30:163
111949963,2cyclictest8833-21ssh10:31:213
111949963,2cyclictest6941-21wc08:10:143
111949963,2cyclictest658-21snmpd09:45:533
111949963,2cyclictest504-21dbus-daemon07:17:453
111949963,2cyclictest4858-21sh10:10:113
111949963,2cyclictest4416-21ssh11:07:433
111949963,2cyclictest31813-21taskset07:53:563
111949963,2cyclictest31083-21ssh11:43:513
111949963,2cyclictest275-21systemd-journal09:10:413
111949963,2cyclictest24916-21rm10:40:423
111949963,2cyclictest19158-21tune2fs07:25:143
111949963,2cyclictest17556-21sh11:35:163
111949963,2cyclictest12751-21ssh12:31:133
111949963,2cyclictest10006-21rm09:34:093
111949962,3cyclictest9631-21expr12:10:133
111949962,3cyclictest7247-21expr10:50:133
111949962,3cyclictest658-21snmpd12:27:473
111949962,3cyclictest658-21snmpd12:15:403
111949962,3cyclictest658-21snmpd12:06:103
111949962,3cyclictest658-21snmpd12:03:393
111949962,3cyclictest658-21snmpd11:52:483
111949962,3cyclictest658-21snmpd11:00:523
111949962,3cyclictest658-21snmpd09:16:513
111949962,3cyclictest658-21snmpd08:32:093
111949962,3cyclictest658-21snmpd08:06:353
111949962,3cyclictest658-21snmpd07:20:103
111949962,3cyclictest26198-21cat07:40:173
111949962,3cyclictest19887-21cat09:20:153
111949962,3cyclictest1388-21seq10:07:363
111949962,1cyclictest0-21swapper/311:25:583
111949962,1cyclictest0-21swapper/310:21:223
111949960,5cyclictest4824-21ls09:50:163
111949960,0cyclictest0-21swapper/312:37:173
111899966,0cyclictest0-21swapper/210:32:102
111899964,1cyclictest304-21systemd-udevd11:15:142
111899964,1cyclictest17649-21ntp_states11:35:162
111899963,2cyclictest8463-21ssh09:13:492
111899963,2cyclictest658-21snmpd11:21:212
111899963,2cyclictest658-21snmpd10:40:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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