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2026-05-19 - 09:50
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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 May 19, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
975321690,4sleep21396899cyclictest22:38:222
1068911060,4ptp4l401ktimersoftd/320:32:263
39122650,4sleep21396899cyclictest22:27:392
137022654,10sleep00-21swapper/020:35:110
121602620,1sleep20-21swapper/201:57:242
1397399611,22cyclictest14444-21sed01:27:183
71152600,2sleep20-21swapper/201:52:192
1397399606,18cyclictest323182chrt23:33:403
1397399600,23cyclictest27052-21taskset01:38:263
1397399596,19cyclictest4049-21sh00:42:483
1397399595,19cyclictest17123-21sh00:23:123
13968995919,4cyclictest33-21ksoftirqd/201:52:292
240822580,2sleep20-21swapper/222:02:332
184132580,2sleep118415-21proc_pri20:42:351
1397399581,21cyclictest484-21cstates22:22:273
1397399580,23cyclictest9131-21sed22:37:423
1397399576,20cyclictest28613-21irqrtprio22:12:323
1397399574,19cyclictest1598-21cat21:17:263
1397399571,21cyclictest21095-21mailstats01:32:423
1397399571,20cyclictest28961-21grep00:02:403
1397399570,22cyclictest12437-21cat21:37:413
1397399570,21cyclictest22680-21expr22:52:273
1397399570,21cyclictest22680-21expr22:52:273
151762560,2sleep00-21swapper/000:22:310
142892560,3sleep30-21swapper/300:21:463
1397399563,24cyclictest19438-21ssh02:03:193
1397399563,24cyclictest19438-21ssh02:03:193
1397399561,21cyclictest16170-21systemctl01:27:423
1397399561,20cyclictest12647-21df00:52:313
1397399560,22cyclictest22003-21sed21:57:413
1397399560,22cyclictest13364-21cut23:47:333
1397399560,21cyclictest26362-21mailstats00:32:403
1397399560,21cyclictest26362-21mailstats00:32:403
13956995624,5cyclictest9-21ksoftirqd/001:32:420
233622550,2sleep10-21swapper/100:30:191
1397399551,21cyclictest13279-21cat21:42:233
1397399551,20cyclictest20437-21smartctl23:22:323
1397399550,28cyclictest6466-21mailstats00:12:393
1397399550,22cyclictest18669-21ptp4l00:57:403
1397399550,19cyclictest8969-21switchtime00:47:463
13968995523,6cyclictest33-21ksoftirqd/200:02:172
1397399541,20cyclictest12505-21apt-get22:42:283
1397399541,18cyclictest18860-21snmp_o5powerctl23:52:413
13968995420,4cyclictest33-21ksoftirqd/221:17:352
1397399531,27cyclictest15715-21sed20:37:393
1397399531,18cyclictest7371-21/usr/sbin/munin23:42:373
1397399530,28cyclictest27466-21egrep22:57:263
1397399530,22cyclictest9138-21taskset01:52:463
1397399521,18cyclictest30840-21memory01:42:393
13968995223,6cyclictest33-21ksoftirqd/201:22:332
13968995221,6cyclictest33-21ksoftirqd/202:07:182
13968995221,6cyclictest33-21ksoftirqd/202:07:182
13956995246,4cyclictest9-21ksoftirqd/020:37:230
1397399510,28cyclictest7097-21diskmemload22:48:183
1397399510,25cyclictest7097-21diskmemload01:58:453
13968995126,4cyclictest33-21ksoftirqd/223:42:332
13956995144,4cyclictest9-21ksoftirqd/021:57:250
13956995115,5cyclictest9-21ksoftirqd/000:48:400
1397399501,19cyclictest21460-21snmp_o5powerctl00:27:433
1397399500,26cyclictest7097-21diskmemload01:07:203
13968995039,5cyclictest33-21ksoftirqd/222:12:262
13956995036,6cyclictest9-21ksoftirqd/023:52:270
13956995035,3cyclictest9-21ksoftirqd/001:07:470
136572504,34sleep20-21swapper/220:34:372
136132500,2sleep10-21swapper/100:52:391
1397399490,18cyclictest32689-21diskstats23:02:293
122992490,2sleep10-21swapper/100:18:271
1397399481,17cyclictest2981-21if_ens301:47:373
13968994839,4cyclictest33-21ksoftirqd/223:12:292
1395699486,8cyclictest9-21ksoftirqd/002:02:380
1395699486,8cyclictest9-21ksoftirqd/002:02:380
1395699485,3cyclictest9-21ksoftirqd/021:47:390
13956994834,3cyclictest9-21ksoftirqd/020:47:280
13956994823,4cyclictest9-21ksoftirqd/021:27:310
157942470,2sleep10-21swapper/123:17:321
13968994720,4cyclictest33-21ksoftirqd/200:07:362
13956994728,6cyclictest9-21ksoftirqd/000:02:170
13956994724,7cyclictest9-21ksoftirqd/021:37:340
13956994722,4cyclictest9-21ksoftirqd/001:57:410
13956994722,4cyclictest9-21ksoftirqd/000:32:350
13956994722,4cyclictest9-21ksoftirqd/000:32:350
1397399461,18cyclictest25203-21diskstats23:27:313
1397399461,17cyclictest4059-21diskstats21:22:283
13968994636,5cyclictest33-21ksoftirqd/220:57:252
13968994622,7cyclictest33-21ksoftirqd/200:47:322
13968994620,6cyclictest33-21ksoftirqd/223:37:292
13968994620,4cyclictest33-21ksoftirqd/221:52:132
13968994618,6cyclictest33-21ksoftirqd/200:57:362
13968994617,6cyclictest33-21ksoftirqd/201:12:332
13956994631,7cyclictest9-21ksoftirqd/021:07:320
13956994622,4cyclictest9-21ksoftirqd/020:52:400
13956994619,4cyclictest9-21ksoftirqd/001:42:340
13956994617,9cyclictest9-21ksoftirqd/023:02:310
1396899459,6cyclictest33-21ksoftirqd/201:12:182
13968994535,6cyclictest33-21ksoftirqd/221:42:252
13968994526,6cyclictest33-21ksoftirqd/222:51:362
13968994524,9cyclictest33-21ksoftirqd/222:42:462
13968994519,4cyclictest33-21ksoftirqd/201:42:362
13968994513,6cyclictest33-21ksoftirqd/200:32:322
13968994513,6cyclictest33-21ksoftirqd/200:32:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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