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2025-12-15 - 22:09
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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 Mon Dec 15, 2025 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1130509993431,1cyclictest0-21swapper/311:40:003
1130509992522,1cyclictest0-21swapper/310:50:003
1130509992320,1cyclictest0-21swapper/312:10:013
1130509992117,1cyclictest0-21swapper/311:15:573
1130509992110,7cyclictest15376002sleep312:25:113
1130509991916,1cyclictest0-21swapper/308:10:013
1130509991915,1cyclictest0-21swapper/311:30:003
1130509991815,1cyclictest0-21swapper/309:00:143
1130509991815,1cyclictest0-21swapper/308:50:153
1130509991815,1cyclictest0-21swapper/307:40:193
1130509991814,1cyclictest0-21swapper/311:05:153
1130509991814,1cyclictest0-21swapper/310:40:123
113050999181,13cyclictest1524835-21chrt12:15:133
113050999181,12cyclictest1203195-21taskset08:04:563
113050999172,12cyclictest1428349-21turbostat11:00:003
1130509991715,1cyclictest0-21swapper/312:20:183
1130509991715,1cyclictest0-21swapper/307:50:163
1130509991714,1cyclictest0-21swapper/311:10:163
1130509991714,1cyclictest0-21swapper/307:10:153
113050999171,12cyclictest1550508-21taskset12:35:123
113050999171,12cyclictest1415790-21taskset10:50:133
113050999171,12cyclictest1402722-21turbostat10:40:013
113050999171,12cyclictest1274213-21turbostat09:00:003
113050999171,12cyclictest1144730-21taskset07:15:233
113050999170,12cyclictest1466942-21taskset11:30:003
15056302166,7sleep01505726-21grep12:00:120
113050999165,7cyclictest13774852sleep310:20:133
1130509991613,1cyclictest0-21swapper/312:30:183
1130509991613,1cyclictest0-21swapper/312:00:013
1130509991613,1cyclictest0-21swapper/309:45:143
1130509991613,1cyclictest0-21swapper/307:57:443
1130509991613,1cyclictest0-21swapper/307:25:163
113050999161,12cyclictest1498837-21taskset11:54:013
113050999161,12cyclictest1485543-21taskset11:40:263
113050999161,12cyclictest1434518-21chrt11:02:073
113050999161,12cyclictest1396201-21taskset10:33:503
113050999161,12cyclictest1364784-21taskset10:10:143
113050999161,12cyclictest1357424-21taskset10:00:243
113050999161,12cyclictest1338826-21taskset09:50:123
113050999161,12cyclictest1261138-21taskset08:46:233
113050999161,11cyclictest1460292-21taskset11:24:563
113050999161,11cyclictest1363888-21taskset10:06:213
113050999161,11cyclictest1306991-21taskset09:25:143
113050999161,11cyclictest1229433-21chrt08:25:113
113050999160,13cyclictest1492204-21chrt11:45:433
113050999160,13cyclictest1254930-21chrt08:43:553
11576332151,5sleep11157850-21users07:25:251
113050999157,5cyclictest11838162sleep307:47:183
113050999156,6cyclictest15198182sleep312:10:173
1130509991512,1cyclictest0-21swapper/310:16:553
1130509991512,1cyclictest0-21swapper/309:40:163
1130509991512,1cyclictest0-21swapper/309:17:373
1130509991512,1cyclictest0-21swapper/307:34:023
1130509991512,1cyclictest0-21swapper/307:23:043
113050999151,12cyclictest1222361-21taskset08:15:463
113050999151,11cyclictest1511424-21taskset12:00:423
113050999151,11cyclictest1345241-21chrt09:55:113
113050999151,11cyclictest1319309-21taskset09:35:043
113050999151,11cyclictest1318697-21chrt09:30:233
113050999151,11cyclictest1241987-21taskset08:32:223
113050999151,11cyclictest1228799-21taskset08:20:383
113050999150,12cyclictest1383717-21chrt10:25:063
113050999150,12cyclictest1306076-21chrt09:22:503
113050999150,12cyclictest1286696-21chrt09:05:523
113050999150,12cyclictest1215989-21chrt08:11:093
113050999150,12cyclictest1170670-21chrt07:35:343
113050999140,12cyclictest1292557-21chrt09:10:193
113050999140,11cyclictest1242450-21taskset08:35:093
307598130,9rtkit-daemon714-21snmpd12:31:252
15543382130,4sleep01555560-21memory12:35:180
11636982131,8sleep01163756-21ntp_states07:30:190
307598120,7rtkit-daemon316-21systemd-udevd08:15:442
11368592120,8sleep01137032-21munin-node07:15:010
307598110,7rtkit-daemon316-21systemd-udevd08:01:442
307598110,4rtkit-daemon719-21lldpd09:26:342
307598110,3rtkit-daemon217-21plymouthd09:15:192
15513552111,7sleep21551860-21kthreadcore12:35:162
14864562111,7sleep01486599-21df11:45:130
13129242111,6sleep21312957-21apt-get09:30:112
307598100,6rtkit-daemon716-21ntpd10:45:282
307598100,6rtkit-daemon3256-21sendmail-mta11:32:182
307598100,6rtkit-daemon3256-21sendmail-mta09:12:282
307598100,6rtkit-daemon3256-21sendmail-mta07:58:482
307598100,6rtkit-daemon3256-21sendmail-mta07:07:482
307598100,6rtkit-daemon1152100-21/usr/sbin/munin07:25:202
307598100,3rtkit-daemon3256-21sendmail-mta08:44:382
307598100,2rtkit-daemon217-21plymouthd10:09:372
307598100,1rtkit-daemon0-21swapper/209:08:422
15247992101,4sleep21524832-21apt-get12:15:132
15184172101,6sleep21518450-21apt-get12:10:122
13193182101,6sleep21319351-21apt-get09:35:122
13015122100,8sleep11303479-21kthreadcore09:20:161
12293972102,4sleep21229430-21apt-get08:25:112
30759890,5rtkit-daemon714-21snmpd11:38:382
30759890,5rtkit-daemon714-21snmpd11:15:402
30759890,5rtkit-daemon714-21snmpd07:41:542
30759890,5rtkit-daemon3333005-21packagekitd10:32:122
30759890,4rtkit-daemon217-21plymouthd09:44:302
30759890,4rtkit-daemon217-21plymouthd08:12:232
30759890,3rtkit-daemon1130504-21cyclictest10:26:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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