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2025-12-05 - 18:35
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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 rackaslot8.osadl.org (updated Fri Dec 05, 2025 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
52042318290,17sleep20-21swapper/207:08:392
52672271237,21sleep30-21swapper/307:09:193
50022260228,20sleep00-21swapper/007:06:160
50712254221,22sleep10-21swapper/107:07:091
287112680,0sleep10-21swapper/109:30:141
7922640,0sleep10-21swapper/112:05:331
121742620,0sleep20-21swapper/210:31:362
239032580,0sleep30-21swapper/312:22:203
190602560,0sleep10-21swapper/111:03:451
114172550,0sleep20-21swapper/212:35:402
103252550,0sleep10-21swapper/111:47:421
14562540,0sleep10-21swapper/111:40:531
99022440,0sleep10-21swapper/111:23:441
46462180,0sleep20-21swapper/209:35:532
24402180,0sleep10-21swapper/111:17:001
159302180,0sleep10-21swapper/109:45:011
235252170,0sleep00-21swapper/012:21:570
543299155,3cyclictest11817-21basename07:30:021
325562150,0sleep10-21swapper/108:55:161
161782150,0sleep30-21swapper/311:28:423
18182140,0sleep00-21swapper/011:41:130
543299134,3cyclictest3615-21sed10:25:151
543299133,7cyclictest4546-21taskset09:35:451
544099129,2cyclictest34-21ksoftirqd/308:40:013
543299128,2cyclictest28938-21apt-get09:55:141
543299125,3cyclictest22506-21diskstats09:25:141
543299124,3cyclictest23211-21rm11:07:161
543299124,3cyclictest19328-21rm09:22:291
543299123,6cyclictest23356-21ssh11:34:301
543299123,6cyclictest21497-21ssh11:55:571
543299123,6cyclictest19797-21ssh10:12:451
543299117,3cyclictest8441-21uname07:15:011
543299117,3cyclictest502-21systemd-logind07:15:011
543299117,3cyclictest502-21systemd-logind07:15:011
543299116,4cyclictest13207-21systemctl07:40:011
543299115,5cyclictest16080-21latency_hist07:50:001
543299115,2cyclictest2350-21diskmemload10:08:441
543299114,3cyclictest9966-21if_enp4s009:15:141
543299114,3cyclictest5931-21ssh12:32:121
543299114,3cyclictest28472-21ssh11:11:461
543299114,3cyclictest2350-21diskmemload10:40:371
543299114,2cyclictest23807-21/usr/sbin/munin10:15:191
543299114,2cyclictest2350-21diskmemload11:35:101
543299114,2cyclictest2350-21diskmemload10:56:241
543299114,2cyclictest2350-21diskmemload10:45:361
543299114,2cyclictest2350-21diskmemload10:21:341
543299113,5cyclictest9005-21ssh12:12:411
543299113,5cyclictest8172-21ssh10:54:231
543299113,5cyclictest467-21ssh12:28:551
543299113,5cyclictest22259-21ssh09:50:021
543299113,5cyclictest15211-21ssh12:16:181
543299113,5cyclictest10992-21ssh09:40:301
543299113,4cyclictest12159-21diskmemload12:36:231
543299113,3cyclictest14152-21ssh10:33:501
543299107,2cyclictest508-21dbus-daemon09:10:011
543299107,2cyclictest16728-21cron07:55:001
543299107,2cyclictest0-21swapper/110:00:021
543299106,3cyclictest30057-21date08:45:001
543299106,3cyclictest25902-21/usr/sbin/munin12:00:111
543299106,3cyclictest25343-21ntpq08:25:171
543299106,3cyclictest23187-21sh08:17:011
543299106,3cyclictest21056-21seq08:10:131
543299106,3cyclictest21013-21awk12:20:181
543299106,3cyclictest16308-21grep10:35:151
543299106,3cyclictest15019-21users07:40:191
543299106,3cyclictest11640-21expr11:25:131
543299105,3cyclictest19982-21systemd-journal08:54:291
543299105,3cyclictest19982-21systemd-journal07:24:571
543299103,5cyclictest6219-21ssh09:12:081
543299103,3cyclictest15331-21sh11:50:511
54409994,3cyclictest19982-21systemd-journal08:59:293
54329997,1cyclictest19982-21systemd-journal09:05:011
54329996,2cyclictest27020-21ls08:35:001
54329996,2cyclictest20451-21sshd08:08:441
54329996,2cyclictest195092sleep108:00:011
54329995,3cyclictest30440-21sshd08:48:451
54329995,3cyclictest27697-21idleruntime-cro08:40:001
54329995,3cyclictest17363-21df07:55:111
54329995,3cyclictest1-21systemd07:30:511
54289994,3cyclictest19982-21systemd-journal10:03:080
54289994,3cyclictest19982-21systemd-journal08:21:430
54289994,3cyclictest19982-21systemd-journal07:36:400
54409983,3cyclictest19982-21systemd-journal08:51:473
54379984,3cyclictest19982-21systemd-journal12:04:562
54329983,1cyclictest23726-21runrttasks08:20:191
834270,1sleep3845-21ssh09:58:173
54409975,1cyclictest34-21ksoftirqd/307:20:013
54409974,2cyclictest508-21dbus-daemon07:11:143
54409974,2cyclictest508-21dbus-daemon07:11:143
54409974,2cyclictest29741-11brltty12:31:143
54409973,3cyclictest30654-21snmpd10:56:373
54409973,3cyclictest24106-21vmstat09:50:213
54409973,3cyclictest19982-21systemd-journal08:44:143
54409973,3cyclictest10706-21smart_sda12:35:173
54409973,2cyclictest19982-21systemd-journal09:33:513
54409973,1cyclictest0-21swapper/311:50:363
54409973,1cyclictest0-21swapper/310:35:313
54409973,1cyclictest0-21swapper/309:43:263
54409972,3cyclictest19982-21systemd-journal11:40:453
54409972,3cyclictest19982-21systemd-journal11:05:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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