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2025-10-15 - 23:12
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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 rack1slot3.osadl.org (updated Wed Oct 15, 2025 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120637999130,12cyclictest0-21swapper/308:35:123
120637999130,11cyclictest0-21swapper/307:15:133
120637999120,1cyclictest0-21swapper/307:30:163
120637999120,11cyclictest69450irq/121-eno111:05:173
120637999120,11cyclictest0-21swapper/311:25:003
1206379991111,0cyclictest0-21swapper/312:30:123
1206379991111,0cyclictest0-21swapper/310:15:123
1206379991110,0cyclictest0-21swapper/311:40:133
1206379991110,0cyclictest0-21swapper/310:10:193
120637999110,10cyclictest69450irq/121-eno111:49:223
120637999110,10cyclictest69450irq/121-eno110:45:173
120637999110,10cyclictest69450irq/121-eno108:49:563
120637999110,10cyclictest0-21swapper/307:35:113
120637999110,0cyclictest0-21swapper/311:30:133
120637999110,0cyclictest0-21swapper/309:50:143
120637999110,0cyclictest0-21swapper/309:15:143
120637999110,0cyclictest0-21swapper/308:30:113
120637999110,0cyclictest0-21swapper/308:30:013
120637999109,1cyclictest69450irq/121-eno111:50:133
120637999109,0cyclictest69450irq/121-eno112:10:113
120637999108,1cyclictest69450irq/121-eno107:10:113
120637999107,1cyclictest0-21swapper/311:55:133
1206379991010,0cyclictest69450irq/121-eno112:29:413
1206379991010,0cyclictest69450irq/121-eno111:39:403
1206379991010,0cyclictest0-21swapper/310:25:143
1206379991010,0cyclictest0-21swapper/309:55:133
1206379991010,0cyclictest0-21swapper/309:20:213
1206379991010,0cyclictest0-21swapper/308:55:123
1206379991010,0cyclictest0-21swapper/308:10:213
120637999100,9cyclictest69450irq/121-eno110:35:313
120637999100,9cyclictest0-21swapper/307:20:193
120637999100,0cyclictest0-21swapper/310:20:233
120637999100,0cyclictest0-21swapper/309:45:013
120637999100,0cyclictest0-21swapper/308:20:193
120637999100,0cyclictest0-21swapper/307:30:013
12063799999,0cyclictest69450irq/121-eno112:36:563
12063799999,0cyclictest69450irq/121-eno112:21:183
12063799999,0cyclictest69450irq/121-eno112:00:403
12063799999,0cyclictest69450irq/121-eno111:01:413
12063799999,0cyclictest69450irq/121-eno109:45:403
12063799999,0cyclictest69450irq/121-eno109:31:073
12063799999,0cyclictest69450irq/121-eno109:26:093
12063799999,0cyclictest0-21swapper/312:15:173
12063799999,0cyclictest0-21swapper/310:40:173
12063799999,0cyclictest0-21swapper/308:05:183
12063799998,1cyclictest69450irq/121-eno109:05:143
12063799998,1cyclictest0-21swapper/310:55:013
12063799998,0cyclictest0-21swapper/310:05:203
12063799998,0cyclictest0-21swapper/309:35:133
12063799990,8cyclictest0-21swapper/311:15:173
12063799990,8cyclictest0-21swapper/308:05:003
12063799990,0cyclictest0-21swapper/310:30:193
12063799988,0cyclictest69450irq/121-eno111:25:563
12063799988,0cyclictest69450irq/121-eno111:14:303
12063799988,0cyclictest69450irq/121-eno110:02:423
12063799980,7cyclictest69450irq/121-eno110:55:183
1318955270,1sleep11319072-21expr11:45:171
12063799977,0cyclictest69450irq/121-eno112:10:013
12063799977,0cyclictest69450irq/121-eno109:12:043
12063799977,0cyclictest69450irq/121-eno107:50:153
1204324271,4sleep30-21swapper/307:05:013
12063799966,0cyclictest69450irq/121-eno107:41:393
12063799965,0cyclictest0-21swapper/308:40:153
1270206250,3sleep11270236-21apt-get09:50:121
12063799955,0cyclictest69450irq/121-eno108:50:343
12063799955,0cyclictest69450irq/121-eno108:15:123
12063799955,0cyclictest0-21swapper/309:00:173
12063799950,5cyclictest69450irq/121-eno107:45:573
1206047253,1sleep10-21swapper/107:07:391
12063799944,0cyclictest69450irq/121-eno107:55:203
1206213242,1sleep20-21swapper/207:09:452
1205871241,1sleep00-21swapper/007:05:220
1308146230,2sleep21308172-21head11:20:162
1294679230,0sleep20-21swapper/210:45:222
1247101230,2sleep01246318-21/usr/sbin/munin08:50:330
1232880230,1sleep21232906-21apt-get08:15:122
1224573232,1sleep0754-21snmpd07:53:200
1336848220,0sleep00-21swapper/012:25:300
1328491220,1sleep21328493-21ssh12:07:592
1317277220,1sleep11317393-21python311:40:201
1312414220,1sleep11312654-21df_inode11:30:161
1300993220,1sleep11299689-21/usr/sbin/munin11:00:221
1294409220,1sleep11294675-21grep10:45:201
1286892220,1sleep21-21systemd10:30:012
1286703220,0sleep00-21swapper/010:28:190
1280925220,1sleep01281009-21cut10:15:140
1272289220,0sleep00-21swapper/009:55:130
1254885220,1sleep21255014-21sed09:10:192
1254147220,1sleep11254387-21cstates09:10:141
1250258220,1sleep11250452-21cpuspeed_turbos09:00:181
1236734220,1sleep11236760-21apt-get08:25:161
1235782220,1sleep21235938-21cat08:20:212
1231587220,1sleep11231737-21ntp_states08:10:191
1227336220,1sleep01227499-21load08:00:180
1221279220,1sleep01221552-21df_inode07:45:130
1215783220,1sleep11215959-21awk07:30:211
1214723220,0sleep00-21swapper/007:27:070
1212339220,1sleep21211376-21/usr/sbin/munin07:20:212
1210217220,1sleep21210464-21vmstat07:15:212
1208201220,1sleep21208260-21munin-run07:15:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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