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2026-07-26 - 13:18
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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 Sun Jul 26, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159452326295,21sleep10-21swapper/119:06:421
142332281250,21sleep20-21swapper/219:05:022
160102268213,17sleep00-21swapper/019:07:250
160662263232,20sleep30-21swapper/319:08:083
325922570,0sleep20-21swapper/221:25:132
176982570,0sleep30-21swapper/322:52:313
24242560,0sleep10-21swapper/100:20:141
9632540,0sleep10-21swapper/100:19:501
195992540,0sleep20-21swapper/222:53:592
164472210,0sleep10-21swapper/121:15:191
114362180,0sleep00-21swapper/023:27:240
79752170,0sleep20-21swapper/222:46:302
42762170,0sleep20-21swapper/200:01:422
267062170,1sleep3331rcuc/320:40:183
134712140,0sleep30-21swapper/321:13:563
1632699101,3cyclictest275-21systemd-journal20:31:363
163269993,2cyclictest658-21snmpd22:12:273
163269984,3cyclictest275-21systemd-journal19:48:293
163129986,2cyclictest12-21ksoftirqd/023:55:010
163129983,3cyclictest275-21systemd-journal23:00:010
32207270,0sleep10-21swapper/100:38:081
28755270,0sleep00-21swapper/023:57:080
22012270,0sleep10-21swapper/123:14:531
17232270,0sleep00-21swapper/021:54:430
163269974,2cyclictest10946-21sshd22:29:283
163269973,3cyclictest20246-21smart_sda20:25:203
163269973,3cyclictest13249-21ntpq22:30:213
163269973,2cyclictest275-21systemd-journal19:16:503
163219976,1cyclictest28-21ksoftirqd/219:30:012
163219974,2cyclictest275-21systemd-journal23:25:012
163219973,3cyclictest658-21snmpd19:51:472
163219973,3cyclictest504-21dbus-daemon23:45:002
163219973,3cyclictest275-21systemd-journal21:22:082
163219972,4cyclictest19638-21cat21:55:192
163219972,3cyclictest275-21systemd-journal21:40:282
163179976,1cyclictest22-21ksoftirqd/119:50:001
163179974,2cyclictest504-21dbus-daemon21:55:011
163179974,2cyclictest31746-11brltty19:15:141
163179974,2cyclictest21041-11brltty19:25:171
163179973,3cyclictest658-21snmpd19:14:351
163179973,3cyclictest20128-21cat22:15:181
163179971,3cyclictest5128-21munin-run19:55:001
163129975,2cyclictest12-21ksoftirqd/000:40:000
163129975,1cyclictest12-21ksoftirqd/022:15:020
163129974,2cyclictest658-21snmpd00:00:290
163129973,3cyclictest658-21snmpd21:21:010
163129973,3cyclictest275-21systemd-journal21:40:000
163129973,1cyclictest0-21swapper/000:20:020
11667270,0sleep20-21swapper/221:31:382
10481270,0sleep30-21swapper/300:25:143
163269963,2cyclictest8857-21date23:45:163
163269963,2cyclictest7009-21sh22:07:243
163269963,2cyclictest5919-21ssh21:47:303
163269963,2cyclictest504-21dbus-daemon19:24:273
163269963,2cyclictest24905-21ntpq21:20:183
163269963,2cyclictest12090-21sh23:08:393
163269963,1cyclictest0-21swapper/322:45:313
163269963,1cyclictest0-21swapper/322:41:123
163269962,3cyclictest658-21snmpd23:02:403
163269962,3cyclictest658-21snmpd22:55:103
163269962,3cyclictest658-21snmpd21:56:233
163269962,3cyclictest658-21snmpd21:41:173
163269962,3cyclictest658-21snmpd21:36:443
163269962,3cyclictest658-21snmpd00:16:223
163269962,3cyclictest658-21snmpd00:05:513
163269962,3cyclictest539-21sed20:55:153
163269962,3cyclictest504-21dbus-daemon21:25:023
163269962,3cyclictest32652-21sed23:40:153
163269962,3cyclictest275-21systemd-journal20:08:393
163269962,3cyclictest23793-21cat20:35:153
163269962,3cyclictest23776-21ntpq23:15:193
163269962,3cyclictest21703-21tr22:35:203
163269962,3cyclictest18725-21mailstats00:10:183
163269962,3cyclictest17749-21ntpq20:20:173
163269962,3cyclictest15385-21seq21:15:133
163269962,3cyclictest1-21systemd19:59:043
163269962,1cyclictest0-21swapper/323:50:543
163269962,1cyclictest0-21swapper/323:25:563
163269962,1cyclictest0-21swapper/323:10:083
163269962,1cyclictest0-21swapper/300:30:093
163269961,3cyclictest275-21systemd-journal19:51:343
163269960,6cyclictest0-21swapper/322:20:193
163269960,2cyclictest8120-21perl20:00:153
163219966,0cyclictest6439-21diskmemload22:36:402
163219966,0cyclictest0-21swapper/222:12:082
163219964,1cyclictest27297-21users20:40:212
163219964,1cyclictest17583-21sed21:35:152
163219963,2cyclictest658-21snmpd21:10:002
163219963,2cyclictest658-21snmpd20:26:252
163219963,2cyclictest5821-21ssh23:05:042
163219963,2cyclictest275-21systemd-journal23:54:552
163219963,2cyclictest275-21systemd-journal19:42:282
163219963,2cyclictest25285-21head23:55:142
163219963,2cyclictest12681-21rm22:30:182
163219963,2cyclictest0-21swapper/222:18:152
163219963,2cyclictest0-21swapper/222:06:092
163219962,3cyclictest7817-21cat23:25:152
163219962,3cyclictest658-21snmpd23:03:192
163219962,3cyclictest658-21snmpd22:26:072
163219962,3cyclictest658-21snmpd22:21:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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