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2025-11-18 - 11:44
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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 rack1slot1.osadl.org (updated Tue Nov 18, 2025 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163472210157,27sleep00-21swapper/019:08:090
162892209173,24sleep30-21swapper/319:07:283
163272204164,26sleep20-21swapper/219:07:562
164362199160,26sleep10-21swapper/119:09:191
72462650,1sleep27243-21apt-get22:35:132
272212560,0sleep10-21swapper/120:35:241
132642220,0sleep10-21swapper/121:56:151
11672190,0sleep00-21swapper/023:55:580
298682150,1sleep028497-21/usr/sbin/munin23:05:230
101942150,0sleep20-21swapper/223:25:082
101942150,0sleep20-21swapper/223:25:072
52442130,0sleep30-21swapper/323:16:273
1658599120,9cyclictest0-21swapper/223:55:162
1658599119,1cyclictest21928-21grep22:55:162
1658599110,10cyclictest0-21swapper/222:15:462
1658099112,8cyclictest0-21swapper/021:40:150
1658099110,7cyclictest12977-21ssh22:41:430
234712100,0sleep30-21swapper/321:25:383
165859999,0cyclictest0-21swapper/223:16:142
165859998,1cyclictest28-21ksoftirqd/221:14:382
165859997,1cyclictest28-21ksoftirqd/222:42:172
165859997,1cyclictest28-21ksoftirqd/221:27:182
165859990,5cyclictest0-21swapper/220:10:132
165859990,4cyclictest0-21swapper/221:50:142
165859990,3cyclictest742-21runrttasks23:02:082
165899986,1cyclictest19110-21snmpd20:21:303
165899982,2cyclictest10305-21diskmemload22:35:143
165899981,3cyclictest10305-21diskmemload23:10:043
165899980,5cyclictest15374-21open_inodes21:15:183
165899980,4cyclictest10227-21apt-get23:25:143
165899980,4cyclictest10227-21apt-get23:25:143
165859986,1cyclictest60950irq/123-eno122:27:302
165859986,1cyclictest19110-21snmpd23:45:332
165859986,1cyclictest19110-21snmpd21:45:052
165849987,1cyclictest284602sleep122:19:441
165849982,4cyclictest200-21jbd2/sda2-800:30:521
165849980,5cyclictest63182sleep121:46:341
165849980,4cyclictest0-21swapper/122:55:141
165809986,1cyclictest9-21ksoftirqd/020:59:430
165809986,1cyclictest19110-21snmpd20:37:090
165809986,1cyclictest19110-21snmpd00:04:450
165809984,0cyclictest0-21swapper/000:10:210
165809981,6cyclictest30607-21unixbench_singl22:20:220
165809981,4cyclictest17995-21cron22:05:010
165809981,1cyclictest6551-1kworker/u9:122:38:590
165809980,7cyclictest9810-21ssh23:24:400
165809980,7cyclictest7658-21ssh21:50:070
165809980,7cyclictest30022-21ssh23:50:480
165809980,7cyclictest26814-21ssh00:33:150
165809980,7cyclictest13479-21munin-run23:30:010
165809980,7cyclictest13479-21munin-run23:30:000
165809980,6cyclictest18687-21hddtemp_smartct21:20:170
15587280,1sleep30-21swapper/300:16:363
32232270,0sleep20-21swapper/221:39:222
165899976,1cyclictest35-21ksoftirqd/321:20:213
165899976,1cyclictest19110-21snmpd21:42:023
165899976,1cyclictest19110-21snmpd21:35:483
165899976,1cyclictest19110-21snmpd21:09:163
165899976,1cyclictest19110-21snmpd19:32:083
165899975,1cyclictest19110-21snmpd20:51:103
165899973,1cyclictest10305-21diskmemload22:56:523
165899971,3cyclictest10305-21diskmemload21:56:253
165899971,0cyclictest0-21swapper/321:46:243
165899970,6cyclictest22894-21ssh00:27:063
165899970,6cyclictest10305-21diskmemload23:40:553
165899970,4cyclictest9991-21ssh21:52:043
165899970,4cyclictest0-21swapper/320:00:133
165899970,2cyclictest0-21swapper/322:00:413
165899970,2cyclictest0-21swapper/319:10:133
165899970,1cyclictest27901-21ssh22:17:563
165899970,1cyclictest25277-21/usr/sbin/munin00:30:183
165859977,0cyclictest0-21swapper/221:32:382
165859976,1cyclictest60950irq/123-eno123:20:102
165859976,1cyclictest60950irq/123-eno123:12:332
165859976,1cyclictest60950irq/123-eno100:32:342
165859976,1cyclictest60950irq/123-eno100:22:562
165859976,1cyclictest60950irq/123-eno100:00:152
165859976,1cyclictest271rcuc/219:14:592
165859976,0cyclictest60950irq/123-eno121:23:492
165859975,1cyclictest60950irq/123-eno122:50:122
165859975,1cyclictest60950irq/123-eno122:05:242
165859975,1cyclictest60950irq/123-eno119:50:012
165859975,1cyclictest60950irq/123-eno119:50:002
165859975,1cyclictest60950irq/123-eno100:15:162
165859975,1cyclictest28-21ksoftirqd/220:30:012
165859975,1cyclictest19110-21snmpd21:17:502
165859974,2cyclictest28-21ksoftirqd/200:14:482
165859973,2cyclictest254-21systemd-journal20:20:002
165859972,2cyclictest10305-21diskmemload23:30:112
165859971,5cyclictest8509-21sshd00:06:442
165859971,4cyclictest30745-21apt-get20:45:142
165859970,7cyclictest0-21swapper/221:55:242
165859970,6cyclictest19110-21snmpd00:35:212
165859970,6cyclictest0-21swapper/222:30:372
165859970,2cyclictest0-21swapper/219:30:122
165849972,3cyclictest0-21swapper/122:05:231
165849970,7cyclictest0-21swapper/100:35:151
165849970,4cyclictest0-21swapper/123:53:161
165849970,2cyclictest0-21swapper/123:46:231
165809976,1cyclictest9-21ksoftirqd/000:15:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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