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2025-11-26 - 04:08
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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 Nov 26, 2025 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222708399130,12cyclictest0-21swapper/300:00:153
222708399121,9cyclictest69450irq/121-eno123:10:133
2227083991211,0cyclictest0-21swapper/321:40:013
222708399120,11cyclictest69450irq/121-eno123:28:443
222708399120,11cyclictest69450irq/121-eno121:56:333
222708399120,11cyclictest0-21swapper/323:30:213
222708399120,11cyclictest0-21swapper/322:40:243
222708399120,11cyclictest0-21swapper/319:30:013
222708399117,1cyclictest0-21swapper/319:10:133
2227083991111,0cyclictest69450irq/121-eno123:02:313
2227083991111,0cyclictest0-21swapper/321:20:213
2227083991110,0cyclictest0-21swapper/322:10:153
222708399110,9cyclictest69450irq/121-eno119:35:143
222708399110,9cyclictest0-21swapper/320:40:123
222708399110,10cyclictest69450irq/121-eno122:39:363
222708399110,10cyclictest0-21swapper/323:45:023
222708399110,10cyclictest0-21swapper/322:50:103
222708399110,0cyclictest0-21swapper/322:55:123
222708399110,0cyclictest0-21swapper/321:25:113
222708399109,0cyclictest69450irq/121-eno122:00:193
222708399109,0cyclictest0-21swapper/323:55:123
222708399109,0cyclictest0-21swapper/300:15:133
2227083991010,0cyclictest69450irq/121-eno122:33:093
2227083991010,0cyclictest69450irq/121-eno121:00:133
2227083991010,0cyclictest69450irq/121-eno119:30:143
2227083991010,0cyclictest0-21swapper/319:50:183
222708399100,9cyclictest69450irq/121-eno120:25:143
222708399100,9cyclictest69450irq/121-eno100:32:043
222708399100,9cyclictest69450irq/121-eno100:25:013
222708399100,0cyclictest0-21swapper/323:50:023
222708399100,0cyclictest0-21swapper/319:45:123
222708399100,0cyclictest0-21swapper/300:05:213
22270839999,0cyclictest69450irq/121-eno123:50:443
22270839999,0cyclictest69450irq/121-eno121:30:193
22270839999,0cyclictest69450irq/121-eno120:15:143
22270839999,0cyclictest69450irq/121-eno119:15:173
22270839999,0cyclictest69450irq/121-eno119:15:163
22270839999,0cyclictest69450irq/121-eno100:10:293
22270839999,0cyclictest0-21swapper/323:05:153
22270839999,0cyclictest0-21swapper/321:40:123
22270839999,0cyclictest0-21swapper/320:05:163
22270839999,0cyclictest0-21swapper/319:40:113
22270839998,1cyclictest69450irq/121-eno123:15:133
22270839998,1cyclictest69450irq/121-eno121:10:203
22270839998,0cyclictest0-21swapper/320:45:133
22270839997,1cyclictest69450irq/121-eno100:20:133
22270839990,8cyclictest69450irq/121-eno122:48:133
22270839990,8cyclictest69450irq/121-eno122:20:193
22270839990,8cyclictest69450irq/121-eno122:16:563
22270839990,8cyclictest69450irq/121-eno121:50:183
22270839990,8cyclictest69450irq/121-eno121:45:023
22270839990,8cyclictest69450irq/121-eno120:10:183
22270839988,0cyclictest69450irq/121-eno122:28:253
22270839988,0cyclictest69450irq/121-eno122:05:383
22270839988,0cyclictest69450irq/121-eno121:15:153
22270839988,0cyclictest0-21swapper/323:35:123
22270839988,0cyclictest0-21swapper/321:00:013
22270839988,0cyclictest0-21swapper/320:20:163
22270839988,0cyclictest0-21swapper/319:20:123
2226816282,1sleep20-21swapper/219:08:202
22270839977,0cyclictest69450irq/121-eno123:20:223
22270839977,0cyclictest0-21swapper/320:55:013
22270839977,0cyclictest0-21swapper/319:55:113
22270839976,1cyclictest69450irq/121-eno120:00:133
22270839966,0cyclictest69450irq/121-eno120:35:003
22270839966,0cyclictest69450irq/121-eno100:35:223
22270839960,3cyclictest0-21swapper/320:30:133
2225388260,4sleep12225592-21cpuspeed_turbos19:05:141
2229623251,2sleep02229649-21apt-get19:15:100
2229623251,2sleep02229649-21apt-get19:15:100
22270839950,4cyclictest69450irq/121-eno121:05:123
2225729251,2sleep30-21swapper/319:05:163
2343621240,2sleep12343649-21apt-get23:55:131
2309855240,2sleep22309881-21apt-get22:35:122
2225286241,1sleep00-21swapper/019:05:130
2286723230,2sleep02286986-21expr21:40:150
2275946230,0sleep00-21swapper/021:13:540
2251720230,0sleep20-21swapper/220:10:192
2360849220,1sleep00-21swapper/000:35:180
2356847220,1sleep12356999-21ntp_states00:25:191
2353070220,1sleep02353319-21users00:15:210
2334534220,1sleep12334538-21ssh23:33:141
2332416220,1sleep00-21swapper/023:27:580
2326675220,1sleep22326707-21stty23:15:142
2325146220,1sleep12325298-21ntp_states23:10:181
2322094220,0sleep00-21swapper/023:04:170
2320071220,1sleep12320098-21perf23:00:011
2313499220,0sleep00-21swapper/022:42:230
2306200220,1sleep22306401-21ntpq22:25:162
2306115220,1sleep12306199-21irqstats22:25:141
2303859220,1sleep12304066-21ntpq22:20:191
2299129220,1sleep20-21swapper/222:10:142
2286595220,1sleep20-21swapper/221:40:132
2284143220,1sleep00-21swapper/021:33:140
2279715220,0sleep00-21swapper/021:21:180
2279063220,1sleep22279128-21/usr/sbin/munin21:20:202
2277106220,1sleep12277278-21python321:15:181
2276341220,0sleep00-21swapper/021:15:140
2268541220,1sleep02268567-21apt-get20:55:120
2267110220,1sleep12267246-21memory20:50:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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