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2026-09-02 - 10:11
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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 100 highest latencies:
System rackbslot6.osadl.org (updated Wed Sep 02, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1099521510,3sleep31857999cyclictest01:46:013
1068911220,8ptp4l15024-21kworker/3:021:31:483
106891800,13ptp4l401ktimersoftd/302:18:123
182362664,10sleep00-21swapper/021:32:520
106891590,1ptp4l401ktimersoftd/301:17:273
28682580,3sleep01855899cyclictest23:16:020
257202570,2sleep3401ktimersoftd/301:26:213
214832570,5sleep221488-21missed_timers22:46:052
205592560,2sleep30-21swapper/322:45:583
105791560,4getstats1857999cyclictest00:15:033
1856499540,14cyclictest11065-21/usr/sbin/munin00:06:221
1856499537,12cyclictest5991-21if_ens302:46:071
181292534,36sleep20-21swapper/221:31:282
106891530,1ptp4l8138-21kworker/3:002:49:383
1856499526,18cyclictest0-21swapper/102:00:491
1856499523,13cyclictest11690-21diskmemload00:41:011
1856499523,13cyclictest11690-21diskmemload00:41:011
174352520,4sleep1241ktimersoftd/121:31:021
1856499500,14cyclictest126862wc01:46:221
1856499500,13cyclictest25090-21latency_hist03:05:511
1856499500,13cyclictest23548-21cut02:31:091
1856499500,13cyclictest23548-21cut02:31:091
18558995017,4cyclictest9-21ksoftirqd/023:37:320
1856499490,14cyclictest7771-21timerandwakeup01:41:251
1856499490,14cyclictest4072-21latency02:11:091
1856499490,13cyclictest17984-21cstates02:26:031
18558994923,9cyclictest9-21ksoftirqd/001:20:480
1856499481,13cyclictest0-21swapper/101:01:031
1856499481,11cyclictest15871-21bc01:50:591
1856499480,19cyclictest29242-21cat00:25:581
1856499480,17cyclictest8804-21irqrtprio02:16:081
1856499480,17cyclictest11690-21diskmemload00:16:471
1856499480,13cyclictest30418-21cat02:05:491
1856499480,13cyclictest27927-21fschecks_time23:00:591
1856499480,13cyclictest27840-21ssh00:56:111
1856499480,13cyclictest21215-21cut22:46:031
1856499480,13cyclictest16095-21ssh00:11:161
1856499480,13cyclictest13644-21irqrtprio02:21:071
1856499480,13cyclictest10726-21sed22:25:441
1855899485,9cyclictest11690-21diskmemload02:36:030
18558994819,6cyclictest9-21ksoftirqd/000:06:040
1856499471,13cyclictest22396-21kworker/u8:121:41:011
1856499470,17cyclictest23737-21/usr/sbin/munin01:26:051
1856499470,17cyclictest12806-21kworker/u8:202:06:061
1856499470,17cyclictest11529-21if_enp1s022:26:011
1856499470,13cyclictest7984-21irqrtprio23:26:041
1856499470,13cyclictest26203-21cat22:56:051
1856499470,12cyclictest31434-21cp22:00:441
1856499470,12cyclictest27590-21awk23:51:021
1856499470,12cyclictest12009-21/usr/sbin/munin23:36:071
1855899479,3cyclictest9-21ksoftirqd/001:05:470
1855899476,10cyclictest9-21ksoftirqd/023:11:080
1855899476,10cyclictest9-21ksoftirqd/023:11:080
18558994723,7cyclictest9-21ksoftirqd/001:46:060
18558994721,5cyclictest9-21ksoftirqd/001:56:040
18558994719,4cyclictest9-21ksoftirqd/001:26:160
106891470,10ptp4l401ktimersoftd/323:59:253
106891470,0ptp4l401ktimersoftd/301:54:313
1856499460,29cyclictest22223-21if_ens300:51:061
1856499460,18cyclictest3652-21switchtime23:16:121
1856499460,17cyclictest24510-21expr00:21:011
1856499460,15cyclictest5439-21python01:06:101
1856499460,13cyclictest5278-21switchtime22:11:101
1856499460,13cyclictest14207-21irqrtprio22:31:011
1856499460,12cyclictest2885-21sed00:31:071
1856499460,12cyclictest10953-21rm01:11:401
1855899467,7cyclictest9-21ksoftirqd/001:11:120
1855899465,6cyclictest9-21ksoftirqd/022:16:000
18558994623,4cyclictest9-21ksoftirqd/021:56:020
18558994621,7cyclictest9-21ksoftirqd/002:06:040
18558994616,5cyclictest9-21ksoftirqd/002:11:050
1856499450,17cyclictest1520-21grep22:05:551
1856499450,13cyclictest19659-21cut21:36:021
1856499450,12cyclictest15899-21rm01:16:441
1856499450,11cyclictest580-21cstates02:41:041
1856499450,11cyclictest15099-21/usr/sbin/munin02:56:131
1855899458,3cyclictest9-21ksoftirqd/023:41:190
18558994521,4cyclictest9-21ksoftirqd/001:51:030
18558994516,5cyclictest9-21ksoftirqd/003:05:510
18558994510,3cyclictest9-21ksoftirqd/000:56:040
1856499440,19cyclictest19388-21systemctl22:41:071
1856499440,13cyclictest17163-21expr22:36:131
1856499440,12cyclictest26274-21rm23:50:151
1855899449,6cyclictest9-21ksoftirqd/000:41:050
1855899449,6cyclictest9-21ksoftirqd/000:41:050
18558994434,3cyclictest9-21ksoftirqd/000:21:160
18558994427,5cyclictest9-21ksoftirqd/000:11:030
18558994423,3cyclictest9-21ksoftirqd/022:01:000
18558994418,4cyclictest9-21ksoftirqd/001:36:100
18558994415,6cyclictest9-21ksoftirqd/000:30:460
1856499430,19cyclictest10204-21if_ens323:31:021
1856499430,18cyclictest6601-21ssh00:01:461
1856499430,18cyclictest18619-21ssh00:46:291
1856499430,18cyclictest18619-21ssh00:46:291
1856499430,18cyclictest1292-21sed23:56:301
1856499430,18cyclictest0-21swapper/123:43:451
1856499430,12cyclictest14512-21rm02:55:241
1855899439,3cyclictest9-21ksoftirqd/023:06:080
1855899437,8cyclictest9-21ksoftirqd/002:25:490
1855899436,3cyclictest9-21ksoftirqd/002:46:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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