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2026-05-23 - 08:41
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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
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Sat May 23, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11190999140,12cyclictest0-21swapper/320:25:133
11190999130,12cyclictest0-21swapper/323:40:113
11190999130,11cyclictest0-21swapper/323:10:123
11190999120,1cyclictest0-21swapper/322:25:013
11190999120,1cyclictest0-21swapper/321:15:123
11190999120,1cyclictest0-21swapper/319:35:103
11190999120,11cyclictest0-21swapper/322:10:123
11190999120,11cyclictest0-21swapper/320:40:123
11190999120,10cyclictest0-21swapper/319:30:123
111909991110,0cyclictest0-21swapper/320:00:073
111909991110,0cyclictest0-21swapper/319:10:193
11190999110,9cyclictest0-21swapper/322:15:123
11190999110,9cyclictest0-21swapper/322:05:113
11190999110,10cyclictest0-21swapper/323:05:183
11190999110,10cyclictest0-21swapper/320:50:003
11190999110,0cyclictest0-21swapper/321:40:093
11190999110,0cyclictest0-21swapper/319:20:003
11190999110,0cyclictest0-21swapper/300:25:123
11190999109,0cyclictest0-21swapper/300:20:153
111909991010,0cyclictest0-21swapper/322:45:153
111909991010,0cyclictest0-21swapper/320:10:123
11190999100,0cyclictest0-21swapper/323:05:003
11190999100,0cyclictest0-21swapper/321:25:103
11190999100,0cyclictest0-21swapper/321:00:123
11190999100,0cyclictest0-21swapper/320:50:133
1119099999,0cyclictest0-21swapper/323:15:103
1119099999,0cyclictest0-21swapper/322:40:133
1119099999,0cyclictest0-21swapper/322:30:133
1119099999,0cyclictest0-21swapper/321:30:133
1119099999,0cyclictest0-21swapper/320:20:113
1119099999,0cyclictest0-21swapper/320:05:593
1119099999,0cyclictest0-21swapper/300:30:123
1119099998,0cyclictest0-21swapper/323:35:103
1119099990,8cyclictest0-21swapper/320:35:013
1119099990,0cyclictest0-21swapper/323:25:103
1119099990,0cyclictest0-21swapper/322:00:183
1119099988,0cyclictest0-21swapper/322:51:083
1119099988,0cyclictest0-21swapper/321:39:333
1119099988,0cyclictest0-21swapper/320:15:123
1119099987,0cyclictest0-21swapper/300:05:173
1119099980,7cyclictest0-21swapper/300:10:133
1119099980,0cyclictest0-21swapper/321:10:163
111756281,3sleep30-21swapper/319:09:563
1119099977,0cyclictest0-21swapper/322:26:223
1119099977,0cyclictest0-21swapper/319:45:163
1119099977,0cyclictest0-21swapper/300:20:013
1119099976,1cyclictest0-21swapper/323:00:013
1119099976,0cyclictest0-21swapper/322:38:063
1119099970,7cyclictest0-21swapper/323:35:013
1119099970,6cyclictest0-21swapper/321:20:133
1119099966,0cyclictest0-21swapper/323:45:203
1119099966,0cyclictest0-21swapper/323:23:043
1119099966,0cyclictest0-21swapper/321:50:363
1119099966,0cyclictest0-21swapper/319:50:183
1119099966,0cyclictest0-21swapper/319:25:163
1119099966,0cyclictest0-21swapper/319:20:183
1119099966,0cyclictest0-21swapper/300:01:433
1119099965,0cyclictest0-21swapper/321:46:313
1119099955,0cyclictest0-21swapper/323:58:103
1119099955,0cyclictest0-21swapper/323:50:513
1119099955,0cyclictest0-21swapper/321:55:123
1119099955,0cyclictest0-21swapper/319:55:163
1119099955,0cyclictest0-21swapper/300:35:133
111527250,1sleep10-21swapper/119:06:571
167953241,1sleep0167979-21apt-get21:30:120
1119099944,0cyclictest0-21swapper/320:55:083
1119099944,0cyclictest0-21swapper/319:40:353
1119099940,3cyclictest157674-21chrt21:05:023
1119099940,2cyclictest0-21swapper/320:35:093
111148241,1sleep00-21swapper/019:05:190
205616230,1sleep1205642-21apt-get23:00:111
182524230,1sleep1182550-21apt-get22:05:121
144867230,2sleep1145019-21ls20:30:181
131717230,0sleep20-21swapper/220:00:022
110258231,1sleep20-21swapper/219:05:142
243460220,0sleep10-21swapper/100:30:091
243213220,1sleep1243414-21latency_hist00:30:011
241018220,0sleep00-21swapper/000:24:000
235568220,1sleep1235733-21/usr/sbin/munin00:10:151
234861220,1sleep2234870-21sh00:10:002
234482220,1sleep0234484-21ssh00:06:390
222218220,0sleep00-21swapper/023:39:090
218265220,1sleep1218560-21df23:30:131
213694220,1sleep11-21systemd23:20:001
212664220,1sleep2212835-21python323:15:172
211863220,0sleep00-21swapper/023:15:110
209107220,0sleep00-21swapper/023:06:140
200148220,1sleep0200320-21python322:45:180
185226220,1sleep1185380-21ntp_states22:10:161
179970220,0sleep20-21swapper/221:58:202
178519220,1sleep0178766-21diskstats21:55:140
161607220,1sleep00-21swapper/021:15:110
158305220,1sleep1158455-21ntp_states21:05:171
156213220,1sleep1156297-21irqstats21:00:151
144096220,1sleep00-21swapper/020:30:130
141582220,1sleep0141712-21cat20:25:010
139916220,1sleep10-21swapper/120:20:091
138884220,1sleep2139020-21threads20:15:192
132028220,1sleep10-21swapper/120:00:131
124321220,1sleep2124347-21apt-get19:40:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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