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2025-11-20 - 08:22
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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 Thu Nov 20, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
237575099140,12cyclictest0-21swapper/321:35:123
2375750991211,0cyclictest69450irq/121-eno122:07:493
237575099120,11cyclictest69450irq/121-eno123:08:313
237575099120,11cyclictest69450irq/121-eno121:31:203
237575099120,11cyclictest0-21swapper/323:50:203
237575099120,11cyclictest0-21swapper/323:25:003
237575099120,11cyclictest0-21swapper/321:50:133
237575099111,9cyclictest69450irq/121-eno123:43:253
2375750991111,0cyclictest69450irq/121-eno100:10:173
2375750991111,0cyclictest0-21swapper/320:00:013
2375750991110,1cyclictest69450irq/121-eno120:18:183
237575099110,10cyclictest0-21swapper/323:15:193
237575099110,10cyclictest0-21swapper/322:20:003
237575099110,10cyclictest0-21swapper/320:05:203
237575099110,10cyclictest0-21swapper/300:35:143
237575099110,10cyclictest0-21swapper/300:30:173
237575099110,0cyclictest0-21swapper/322:32:553
237575099108,1cyclictest0-21swapper/300:00:123
2375750991010,0cyclictest0-21swapper/323:10:123
2375750991010,0cyclictest0-21swapper/322:40:013
2375750991010,0cyclictest0-21swapper/321:55:133
2375750991010,0cyclictest0-21swapper/321:20:103
2375750991010,0cyclictest0-21swapper/321:10:213
2375750991010,0cyclictest0-21swapper/320:05:003
2375750991010,0cyclictest0-21swapper/319:35:003
237575099100,9cyclictest69450irq/121-eno123:35:113
237575099100,9cyclictest69450irq/121-eno123:29:023
237575099100,9cyclictest69450irq/121-eno122:57:183
237575099100,9cyclictest69450irq/121-eno100:00:003
237575099100,9cyclictest0-21swapper/320:45:013
237575099100,9cyclictest0-21swapper/319:25:003
237575099100,10cyclictest0-21swapper/300:05:213
237575099100,0cyclictest0-21swapper/322:40:153
23757509999,0cyclictest69450irq/121-eno123:46:563
23757509999,0cyclictest69450irq/121-eno122:25:353
23757509999,0cyclictest69450irq/121-eno121:40:183
23757509999,0cyclictest69450irq/121-eno121:03:093
23757509999,0cyclictest69450irq/121-eno120:45:123
23757509999,0cyclictest69450irq/121-eno119:53:123
23757509999,0cyclictest0-21swapper/320:25:013
23757509998,1cyclictest0-21swapper/320:30:163
23757509990,8cyclictest69450irq/121-eno120:50:213
23757509990,8cyclictest69450irq/121-eno119:20:013
23757509990,8cyclictest0-21swapper/300:20:183
23757509990,1cyclictest0-21swapper/322:10:093
23757509990,0cyclictest0-21swapper/320:35:193
23757509988,0cyclictest69450irq/121-eno119:49:183
23757509988,0cyclictest69450irq/121-eno119:14:573
23757509988,0cyclictest0-21swapper/323:00:193
23757509988,0cyclictest0-21swapper/322:20:123
23757509988,0cyclictest0-21swapper/321:45:103
23757509988,0cyclictest0-21swapper/321:25:213
23757509988,0cyclictest0-21swapper/321:10:013
23757509988,0cyclictest0-21swapper/320:25:183
23757509987,1cyclictest69450irq/121-eno122:52:203
23757509980,7cyclictest69450irq/121-eno123:30:163
23757509977,0cyclictest69450irq/121-eno122:00:203
23757509977,0cyclictest69450irq/121-eno121:15:163
23757509977,0cyclictest69450irq/121-eno100:19:453
23757509966,0cyclictest69450irq/121-eno100:27:293
23757509960,5cyclictest69450irq/121-eno122:45:133
23757509960,5cyclictest0-21swapper/320:55:103
23757509960,5cyclictest0-21swapper/320:10:003
23757509955,0cyclictest69450irq/121-eno119:39:573
23757509950,4cyclictest0-21swapper/319:30:013
2374373251,3sleep30-21swapper/319:05:173
2460776240,2sleep22460802-21apt-get23:05:112
23757509940,3cyclictest2380143-21chrt19:40:433
2375581242,1sleep10-21swapper/119:09:481
2375487242,1sleep20-21swapper/219:08:322
2374443240,2sleep02374567-21/usr/sbin/munin19:05:190
2486204230,1sleep02486230-21apt-get00:05:130
2439479230,2sleep12439729-21diskstats22:15:151
2496272220,1sleep00-21swapper/000:28:470
2494583220,1sleep22494609-21apt-get00:25:122
2489633220,1sleep00-21swapper/000:10:420
2483608220,0sleep00-21swapper/023:58:100
2480089220,1sleep12480336-21diskstats23:50:171
2477260220,0sleep00-21swapper/023:42:250
2465425220,1sleep22465578-21memory23:15:172
2458717220,0sleep00-21swapper/023:00:140
2458334220,1sleep02458339-21sh22:59:210
2446299220,1sleep02446545-21diskstats22:30:150
2441129220,0sleep22441144-21apt-get22:20:012
2440940220,0sleep20-21swapper/222:18:202
2437917220,0sleep10-21swapper/122:10:161
2429605220,1sleep20-21swapper/221:50:192
2427533220,1sleep02427705-21python321:45:170
2425618220,1sleep22425890-21/usr/sbin/munin21:40:192
2423410220,1sleep22423582-21smart_sda21:35:172
2419935220,1sleep00-21swapper/021:25:240
2407019220,0sleep00-21swapper/020:55:130
2405117220,1sleep12405265-21sed20:50:191
2403189220,1sleep20-21swapper/220:45:152
2385956220,1sleep22385963-21ntp_states20:00:242
2381331220,1sleep00-21swapper/019:50:090
2500208210,0sleep00-21swapper/000:36:400
2499608210,0sleep10-21swapper/100:35:211
2498505210,0sleep20-21swapper/200:35:022
2498317210,0sleep10-21swapper/100:33:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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