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2026-03-24 - 12:18
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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 Tue Mar 24, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911050,4ptp4l401ktimersoftd/320:02:543
325962760,2sleep30-21swapper/301:33:113
26042670,5sleep1233-21systemd-journal20:16:121
327442630,4sleep2321ktimersoftd/222:15:412
29678996147,7cyclictest33-21ksoftirqd/200:11:302
11732580,2sleep20-21swapper/222:48:412
294562574,10sleep10-21swapper/120:04:441
33312540,2sleep10-21swapper/120:16:281
320782540,4sleep332034-21munin-node20:11:123
292812544,39sleep00-21swapper/020:02:290
295402514,34sleep20-21swapper/220:05:502
121162430,3sleep20-21swapper/222:26:372
121162430,3sleep20-21swapper/222:26:372
106891390,1ptp4l401ktimersoftd/323:34:423
106891390,1ptp4l401ktimersoftd/323:27:153
106891390,1ptp4l401ktimersoftd/322:35:423
106891390,1ptp4l401ktimersoftd/322:25:453
106891390,1ptp4l401ktimersoftd/301:03:053
106891390,0ptp4l401ktimersoftd/323:21:293
2968299382,30cyclictest19512-21ssh23:41:323
2968299381,7cyclictest0-21swapper/300:26:303
29682993813,22cyclictest16327-21sed00:11:193
106891380,1ptp4l401ktimersoftd/323:54:273
106891380,1ptp4l401ktimersoftd/323:47:083
106891380,1ptp4l401ktimersoftd/323:17:393
106891380,1ptp4l401ktimersoftd/323:06:283
106891380,1ptp4l401ktimersoftd/322:49:483
106891380,1ptp4l401ktimersoftd/322:41:473
106891380,1ptp4l401ktimersoftd/301:25:173
106891380,1ptp4l401ktimersoftd/300:56:293
106891380,1ptp4l401ktimersoftd/300:26:123
106891380,1ptp4l401ktimersoftd/300:19:263
106891380,1ptp4l401ktimersoftd/300:09:553
106891380,1ptp4l401ktimersoftd/300:00:063
219702370,2sleep20-21swapper/223:10:492
106891370,1ptp4l401ktimersoftd/323:37:143
106891370,1ptp4l401ktimersoftd/323:12:323
106891370,1ptp4l401ktimersoftd/322:28:143
106891370,1ptp4l401ktimersoftd/322:28:143
106891370,1ptp4l401ktimersoftd/322:16:203
106891370,1ptp4l401ktimersoftd/322:16:103
106891370,1ptp4l401ktimersoftd/322:08:063
106891370,1ptp4l401ktimersoftd/301:26:543
106891370,1ptp4l401ktimersoftd/301:07:093
106891370,1ptp4l401ktimersoftd/300:43:563
106891370,1ptp4l401ktimersoftd/300:33:263
106891370,1ptp4l401ktimersoftd/300:01:523
106891370,0ptp4l401ktimersoftd/320:51:273
2968299362,4cyclictest0-21swapper/322:56:293
106891360,1ptp4l401ktimersoftd/323:02:393
106891360,1ptp4l401ktimersoftd/322:40:073
106891360,1ptp4l401ktimersoftd/300:37:003
106891360,0ptp4l401ktimersoftd/322:51:243
88262340,2sleep00-21swapper/000:02:300
2968299342,27cyclictest18223-21ssh00:46:323
29682993410,21cyclictest23025-21wc20:56:353
106891340,1ptp4l401ktimersoftd/301:18:583
2968299333,26cyclictest40292irq/94-enp1s0-T21:41:293
2968299332,5cyclictest23071-21apt-get00:51:313
29682993312,18cyclictest10566-21awk01:11:343
29682993311,19cyclictest16844-21turbostat20:46:133
29682993311,19cyclictest16844-21turbostat20:46:133
2968299330,5cyclictest29689-21/usr/sbin/munin21:11:293
2968299329,19cyclictest13540-21acpi21:46:283
2968299327,3cyclictest769-21expr20:11:273
2968299321,5cyclictest0-21swapper/321:06:263
2968299321,5cyclictest0-21swapper/320:31:263
74972310,3sleep233-21ksoftirqd/200:35:162
2968299310,10cyclictest3315-21cut20:16:283
136612310,7sleep1241ktimersoftd/101:14:061
2968299308,3cyclictest8839-21processes20:26:343
2968299307,3cyclictest5730-21gltestperf20:21:293
2968299307,3cyclictest4238-21cpuspeed_turbos21:26:293
2968299307,20cyclictest0-21swapper/321:51:283
2968299302,8cyclictest31747-21/usr/sbin/munin21:16:343
29673993017,8cyclictest25-21ksoftirqd/101:21:381
106891300,1ptp4l401ktimersoftd/322:01:313
2968299295,3cyclictest19375-21if_ens321:56:343
2968299290,7cyclictest2525-21irqrtprio21:21:343
29678992923,3cyclictest33-21ksoftirqd/220:36:132
29678992916,6cyclictest33-21ksoftirqd/201:06:332
29667992922,4cyclictest10939-21cron21:41:150
2968299287,3cyclictest18521-21switchtime20:46:403
2968299285,2cyclictest0-21swapper/321:36:283
2968299284,3cyclictest25671-21processes21:01:363
29678992823,3cyclictest33-21ksoftirqd/200:56:192
29678992822,4cyclictest33-21ksoftirqd/221:11:142
2968299274,3cyclictest12780-21fschecks_time20:36:283
2968299274,3cyclictest12780-21fschecks_time20:36:283
2968299273,3cyclictest6720-21cstates21:31:303
29678992722,3cyclictest33-21ksoftirqd/223:28:402
29678992721,4cyclictest33-21ksoftirqd/200:26:442
29678992721,3cyclictest33-21ksoftirqd/223:51:332
29678992721,3cyclictest33-21ksoftirqd/200:36:382
29678992720,4cyclictest33-21ksoftirqd/222:16:252
29678992720,4cyclictest33-21ksoftirqd/220:28:012
29678992720,4cyclictest33-21ksoftirqd/200:08:472
2967899271,20cyclictest16193-21apt-get21:51:282
260562270,2sleep10-21swapper/100:53:461
113602270,3sleep02966799cyclictest20:31:370
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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