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2026-06-18 - 21:30
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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 Thu Jun 18, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2749721420,5sleep31412099cyclictest12:53:283
412521300,5sleep31412099cyclictest13:01:523
106891980,3ptp4l401ktimersoftd/308:53:293
315482700,1sleep00-21swapper/012:57:030
14120996912,25cyclictest10753-21sh10:56:453
57852640,1sleep20-21swapper/214:09:402
26862600,1sleep30-21swapper/309:34:233
188222590,2sleep20-21swapper/212:10:072
1411199555,16cyclictest11055-21ssh12:35:272
1411199545,17cyclictest26689-21snmp_o5powerctl13:24:342
1411199542,12cyclictest7265-21latency_hist10:54:052
1411199524,17cyclictest14336-21awk10:59:352
1411199524,17cyclictest14336-21awk10:59:352
1410099521,11cyclictest5790-21grep09:39:330
1411199511,19cyclictest0-21swapper/212:56:512
1410099505,12cyclictest14219-21latency_hist11:34:070
1412099490,3cyclictest20058-21ssh11:05:533
1410099470,11cyclictest18362-21ssh14:24:110
1412099462,36cyclictest13753-21apt-get14:19:203
1412099460,2cyclictest0-21swapper/312:58:283
1410099465,8cyclictest8007-21grep11:59:270
14120994510,20cyclictest13847-21sh13:11:543
14111994410,16cyclictest22889-21ssh13:20:472
1412099432,32cyclictest2538-21apt-get13:34:223
1411199433,16cyclictest7230-21diskmemload11:51:452
1411199432,12cyclictest0-21swapper/209:04:032
1410099434,7cyclictest26512-21awk12:19:200
1410099430,10cyclictest2875-21fschecks_count10:44:180
1412099421,23cyclictest23498-21/usr/sbin/munin11:09:263
1410099427,7cyclictest11182-21sed09:54:050
1410099425,6cyclictest18711-21sed13:49:390
1410099420,10cyclictest465-21awk09:29:240
1412099411,32cyclictest8936-21apt-get14:14:223
1412099402,31cyclictest12535-21apt-get10:59:183
1412099402,31cyclictest12535-21apt-get10:59:183
1412099402,30cyclictest12232-21apt-get13:44:203
1411199409,14cyclictest18161-21interrupts11:04:242
1410099405,6cyclictest12711-21ssh12:04:250
106891400,0ptp4l401ktimersoftd/314:12:563
1412099391,24cyclictest21870-21/usr/sbin/munin13:54:273
1411199398,16cyclictest7988-21ssh11:26:502
1411199394,17cyclictest7230-21diskmemload11:12:512
106891390,1ptp4l401ktimersoftd/312:02:413
106891390,1ptp4l401ktimersoftd/311:20:143
106891390,0ptp4l401ktimersoftd/311:51:093
1412099383,26cyclictest22154-21apt-get09:09:163
1412099381,24cyclictest25173-21/usr/sbin/munin13:24:283
1411199389,16cyclictest15357-21ssh12:07:342
1411199386,16cyclictest20990-21ssh11:39:342
1411199385,12cyclictest0-21swapper/213:44:322
1410099383,5cyclictest9-21ksoftirqd/011:15:070
106891380,1ptp4l401ktimersoftd/313:52:223
106891380,1ptp4l401ktimersoftd/312:18:263
106891380,1ptp4l401ktimersoftd/310:02:433
1412099373,26cyclictest29489-21apt-get09:24:153
1412099371,24cyclictest15855-21/usr/sbin/munin11:34:283
1411199375,18cyclictest10396-21snmp_o5powerctl14:14:362
1410099373,6cyclictest9-21ksoftirqd/013:14:090
1410099373,6cyclictest9-21ksoftirqd/011:45:350
1410099373,5cyclictest9-21ksoftirqd/012:51:350
106891370,1ptp4l401ktimersoftd/313:22:563
106891370,1ptp4l401ktimersoftd/313:16:083
106891370,1ptp4l401ktimersoftd/312:40:023
106891370,1ptp4l401ktimersoftd/312:40:023
106891370,1ptp4l401ktimersoftd/312:35:563
106891370,1ptp4l401ktimersoftd/312:29:493
106891370,1ptp4l401ktimersoftd/312:27:043
106891370,1ptp4l401ktimersoftd/312:19:513
106891370,1ptp4l401ktimersoftd/312:08:273
106891370,1ptp4l401ktimersoftd/311:56:363
106891370,1ptp4l401ktimersoftd/311:46:213
106891370,0ptp4l401ktimersoftd/311:27:243
1412099362,27cyclictest24735-21apt-get09:14:153
1412099362,26cyclictest17399-21apt-get08:59:153
14120993620,13cyclictest41-21ksoftirqd/309:45:113
1412099360,3cyclictest3144-21modprobe10:44:213
1411199367,13cyclictest1277-21ssh13:32:432
1411199363,11cyclictest0-21swapper/212:24:362
1411199362,11cyclictest0-21swapper/214:19:192
1410099363,5cyclictest9-21ksoftirqd/012:17:270
1410099363,5cyclictest9-21ksoftirqd/011:51:450
1410099363,4cyclictest9-21ksoftirqd/012:24:280
106891360,1ptp4l401ktimersoftd/312:45:083
106891360,1ptp4l401ktimersoftd/309:52:433
106891360,0ptp4l401ktimersoftd/313:06:113
106891360,0ptp4l401ktimersoftd/310:25:393
1412099353,24cyclictest27898-21apt-get10:29:163
1412099352,26cyclictest27100-21apt-get09:19:153
1412099350,3cyclictest31097-21ssh11:18:013
1411199356,16cyclictest21482-21/usr/sbin/munin12:14:292
1410099355,7cyclictest9-21ksoftirqd/008:54:150
1410099353,4cyclictest9-21ksoftirqd/012:41:070
1410099353,4cyclictest9-21ksoftirqd/012:41:070
1410099352,5cyclictest9-21ksoftirqd/012:33:570
106891350,1ptp4l401ktimersoftd/312:10:243
106891350,1ptp4l401ktimersoftd/311:43:123
106891350,1ptp4l401ktimersoftd/310:39:283
1412099343,24cyclictest18411-21apt-get10:09:163
1412099341,30cyclictest23790-21sed10:19:213
1412099340,4cyclictest9855-21cut11:29:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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