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2026-01-12 - 07:04
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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 Mon Jan 12, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2143821580,4sleep31556699cyclictest22:44:293
1068911010,4ptp4l401ktimersoftd/319:24:423
106891750,9ptp4l401ktimersoftd/320:32:213
106891730,1ptp4l401ktimersoftd/323:36:223
15552996659,4cyclictest25-21ksoftirqd/119:42:031
319022650,2sleep00-21swapper/022:55:380
319022650,2sleep00-21swapper/022:55:380
193272640,3sleep219331-21unixbench_multi20:37:222
83462630,5sleep21555999cyclictest20:17:062
1555999621,28cyclictest7351-21/usr/sbin/munin23:37:212
106891620,1ptp4l401ktimersoftd/322:10:593
243992600,2sleep30-21swapper/323:53:233
106891590,1ptp4l401ktimersoftd/322:01:153
327672580,3sleep0101ktimersoftd/000:36:190
327672580,3sleep0101ktimersoftd/000:36:190
28202580,1sleep00-21swapper/022:26:360
15552995647,4cyclictest25-21ksoftirqd/123:52:091
15552995646,5cyclictest25-21ksoftirqd/119:47:031
181822550,2sleep20-21swapper/223:13:592
1555999556,16cyclictest22481-21grep20:47:062
15552995547,4cyclictest25-21ksoftirqd/122:57:071
15552995547,4cyclictest25-21ksoftirqd/122:57:071
106891550,1ptp4l401ktimersoftd/323:04:553
15552995326,4cyclictest25-21ksoftirqd/100:02:281
15552995143,4cyclictest25-21ksoftirqd/120:42:071
15552995143,4cyclictest25-21ksoftirqd/120:17:041
15552995042,4cyclictest25-21ksoftirqd/122:47:091
15552994943,3cyclictest25-21ksoftirqd/122:32:081
15552994941,4cyclictest25-21ksoftirqd/120:27:061
15552994738,5cyclictest25-21ksoftirqd/120:37:041
15552994736,7cyclictest25-21ksoftirqd/119:32:161
15552994638,5cyclictest25-21ksoftirqd/122:02:071
15552994636,6cyclictest25-21ksoftirqd/100:52:101
106891450,1ptp4l401ktimersoftd/322:14:243
15552994419,3cyclictest25-21ksoftirqd/123:47:281
1555999430,20cyclictest17222-21ssh21:34:392
15552994334,5cyclictest25-21ksoftirqd/120:12:041
15552994324,11cyclictest25-21ksoftirqd/121:02:201
1526324324,8sleep20-21swapper/219:24:392
106891430,6ptp4l3907-21kworker/3:021:47:333
15552994234,4cyclictest25-21ksoftirqd/100:47:031
106891420,1ptp4l401ktimersoftd/319:44:403
15552994130,6cyclictest25-21ksoftirqd/121:12:071
15552994130,6cyclictest25-21ksoftirqd/121:12:071
106891410,1ptp4l401ktimersoftd/320:59:523
1555999399,27cyclictest26575-21ptp4l-jitter23:22:212
1555999392,30cyclictest2555-21apt-get23:32:092
15559993917,18cyclictest47150irq/102-ens3-Tx00:47:032
15552993924,3cyclictest25-21ksoftirqd/122:31:551
15552993913,4cyclictest25-21ksoftirqd/100:37:021
141342395,20sleep10-21swapper/119:22:121
106891390,1ptp4l401ktimersoftd/323:22:103
15552993827,5cyclictest25-21ksoftirqd/121:07:051
106891380,1ptp4l401ktimersoftd/323:44:073
106891380,1ptp4l401ktimersoftd/322:28:183
106891380,1ptp4l401ktimersoftd/322:04:313
106891380,1ptp4l401ktimersoftd/321:53:343
106891380,1ptp4l401ktimersoftd/300:21:433
106891380,1ptp4l401ktimersoftd/300:14:353
1556699375,4cyclictest121rcu_preempt00:29:593
1555999370,24cyclictest0-21swapper/221:39:552
1555999370,18cyclictest0-21swapper/221:44:232
15552993732,3cyclictest25-21ksoftirqd/100:36:581
15552993732,3cyclictest25-21ksoftirqd/100:36:581
15552993726,5cyclictest25-21ksoftirqd/122:07:051
106891370,1ptp4l401ktimersoftd/323:47:293
106891370,1ptp4l401ktimersoftd/323:37:563
106891370,1ptp4l401ktimersoftd/323:17:543
106891370,1ptp4l401ktimersoftd/323:11:203
106891370,1ptp4l401ktimersoftd/300:52:083
106891370,1ptp4l401ktimersoftd/300:48:303
106891370,1ptp4l401ktimersoftd/300:35:113
106891370,1ptp4l401ktimersoftd/300:35:113
106891370,1ptp4l401ktimersoftd/300:07:013
106891370,1ptp4l401ktimersoftd/300:03:413
106891370,0ptp4l401ktimersoftd/322:52:033
106891370,0ptp4l401ktimersoftd/322:52:033
106891370,0ptp4l401ktimersoftd/322:39:263
106891370,0ptp4l401ktimersoftd/321:38:553
1555999360,32cyclictest32140-21uniq00:02:132
1555999360,19cyclictest0-21swapper/220:52:162
1555999360,18cyclictest0-21swapper/220:57:262
15552993631,3cyclictest25-21ksoftirqd/122:01:551
106891360,1ptp4l401ktimersoftd/321:34:223
106891360,1ptp4l401ktimersoftd/320:21:483
106891360,1ptp4l401ktimersoftd/300:44:563
106891360,0ptp4l401ktimersoftd/322:51:153
106891360,0ptp4l401ktimersoftd/322:24:073
1555999353,26cyclictest26900-21apt-get23:57:102
15559993515,17cyclictest27771-21sh00:31:072
15559993515,17cyclictest25273-21sh22:47:402
15559993515,17cyclictest20631-21sh22:43:072
15559993515,17cyclictest19713-21sh00:55:242
15559993514,18cyclictest7659-21sh00:10:142
1555999351,18cyclictest0-21swapper/222:27:252
1555999350,31cyclictest20468-21grep20:42:102
15552993530,3cyclictest25-21ksoftirqd/123:36:571
15552993530,3cyclictest25-21ksoftirqd/122:46:561
15552993529,3cyclictest25-21ksoftirqd/122:41:561
15552993529,3cyclictest25-21ksoftirqd/121:51:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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