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2026-03-21 - 07:44
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 rackeslot8.osadl.org (updated Sat Mar 21, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1099041993128,1cyclictest0-21swapper/323:30:013
11810992270,7sleep11002-21runrttasks20:10:181
1099041992724,1cyclictest0-21swapper/320:40:163
1099041992320,1cyclictest0-21swapper/322:20:123
1099041992320,1cyclictest0-21swapper/300:15:123
109904199224,6cyclictest1386042-21turbostat22:35:003
109904199222,15cyclictest1113823-21taskset19:18:363
1099041992219,1cyclictest0-21swapper/322:45:133
1099041992219,1cyclictest0-21swapper/321:15:243
1099041992118,1cyclictest0-21swapper/323:25:013
1099041992118,1cyclictest0-21swapper/322:40:013
1099041992118,1cyclictest0-21swapper/319:30:153
1099041992118,1cyclictest0-21swapper/300:05:003
1099041992113,4cyclictest15255372chrt00:05:123
1099041992110,8cyclictest11393332sleep319:37:173
1099041992017,1cyclictest0-21swapper/323:50:003
1099041992017,1cyclictest0-21swapper/322:45:003
109904199201,14cyclictest1355488-21chrt22:15:113
109904199201,14cyclictest1306535-21chrt21:40:203
1099041991916,1cyclictest0-21swapper/321:20:203
1099041991915,1cyclictest0-21swapper/321:00:263
109904199191,14cyclictest1493249-21taskset23:42:073
109904199191,14cyclictest1447164-21taskset23:13:213
109904199191,14cyclictest1347103-21taskset22:09:053
109904199191,14cyclictest1322978-21taskset21:51:263
109904199191,14cyclictest1293076-21taskset21:34:303
109904199191,13cyclictest1556412-21taskset00:25:013
109904199191,13cyclictest1432682-21chrt23:05:113
109904199188,7cyclictest12991752sleep321:35:273
109904199182,11cyclictest1223066-21taskset20:45:113
1099041991816,1cyclictest0-21swapper/321:25:243
1099041991815,1cyclictest0-21swapper/323:15:183
1099041991815,1cyclictest0-21swapper/323:00:153
1099041991815,1cyclictest0-21swapper/322:50:183
1099041991815,1cyclictest0-21swapper/320:00:193
109904199181,14cyclictest1423122-21taskset22:55:333
109904199181,13cyclictest1354714-21taskset22:13:473
109904199181,13cyclictest1193204-21taskset20:20:183
109904199181,13cyclictest1126628-21taskset19:28:183
109904199180,15cyclictest1548765-21taskset00:20:123
109904199180,14cyclictest1372555-21taskset22:25:183
109904199172,12cyclictest1164884-21taskset19:57:053
1099041991714,1cyclictest0-21swapper/321:45:203
1099041991714,1cyclictest0-21swapper/320:30:143
1099041991714,1cyclictest0-21swapper/300:30:233
1099041991714,1cyclictest0-21swapper/300:10:203
109904199171,13cyclictest1579121-21taskset00:39:323
109904199171,13cyclictest1486353-21taskset23:39:463
109904199171,13cyclictest1339006-21taskset22:03:053
109904199171,13cyclictest1261009-21taskset21:10:323
109904199171,13cyclictest1202653-21taskset20:25:223
109904199171,13cyclictest1173605-21taskset20:05:193
109904199171,13cyclictest1158468-21taskset19:51:483
109904199171,13cyclictest1104578-21taskset19:10:233
109904199171,12cyclictest1210217-21taskset20:35:053
109904199171,12cyclictest1185955-21taskset20:15:163
109904199171,12cyclictest1178658-21taskset20:10:163
15414382161,4sleep01542375-21irqstats00:15:160
13178332161,11sleep01318773-21ssh21:50:200
11987772161,3sleep10-21swapper/120:25:181
1099041991613,1cyclictest0-21swapper/323:55:183
1099041991613,1cyclictest0-21swapper/320:50:183
109904199161,12cyclictest1508688-21taskset23:52:093
109904199161,12cyclictest1477348-21taskset23:30:523
109904199161,12cyclictest1330385-21taskset21:55:263
109904199161,12cyclictest1253754-21taskset21:05:203
109904199161,12cyclictest1235991-21taskset20:55:143
109904199161,12cyclictest1151990-21taskset19:45:383
109904199161,12cyclictest1145662-21taskset19:41:283
109904199161,11cyclictest1114212-21taskset19:20:053
109904199161,11cyclictest1114212-21taskset19:20:053
10985282150,12sleep30-21swapper/319:06:113
14545752141,7sleep014-21ksoftirqd/023:17:100
14225862141,6sleep21422634-21grep22:55:252
13839052141,3sleep11383944-21ntpq22:30:211
15328822131,8sleep11532978-21latency_hist00:10:001
14532862131,9sleep21453386-21ntpq23:15:212
13703242131,9sleep21370325-21sh22:24:222
13375742133,6sleep21337610-21ntpq22:00:242
13374722131,8sleep01337521-21ntpq22:00:220
129998130,9rtkit-daemon222-21plymouthd23:20:231
129998130,9rtkit-daemon1563250-21ssh00:28:112
129998130,9rtkit-daemon1105613-21munin-node21:30:101
11206732131,9sleep11120723-21/usr/sbin/munin19:25:131
10928012131,6sleep1222-21plymouthd19:05:121
15469512120,9sleep11546957-21ssh00:15:461
14455852121,8sleep21445626-21ntpq23:10:202
13996482120,9sleep21399897-21awk22:40:242
129998120,8rtkit-daemon1242237-21/usr/sbin/munin21:00:162
129998120,7rtkit-daemon2195379-21ntpd21:40:201
129998120,6rtkit-daemon739-21wpa_supplicant20:24:080
129998120,3rtkit-daemon222-21plymouthd23:49:432
12778692120,9sleep21277874-21ssh21:24:562
11526332121,8sleep01152635-21/usr/sbin/munin19:50:130
14940292111,7sleep11494033-21ssh23:44:271
14931082110,1sleep20-21swapper/223:41:352
14792332112,6sleep01479390-21gltestperf23:35:150
14613942110,8sleep21461590-21/usr/sbin/munin23:20:262
13718422110,8sleep21372554-21cut22:25:182
13548882110,8sleep11354894-21ssh22:14:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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