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2025-11-24 - 07:10
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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 Mon Nov 24, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2345638991311,1cyclictest0-21swapper/321:30:123
234563899120,1cyclictest0-21swapper/320:25:133
234563899120,11cyclictest69450irq/121-eno123:45:163
234563899120,11cyclictest0-21swapper/322:15:013
234563899120,11cyclictest0-21swapper/319:45:143
234563899120,11cyclictest0-21swapper/319:25:143
2345638991111,0cyclictest69450irq/121-eno122:20:143
2345638991111,0cyclictest0-21swapper/323:10:013
2345638991111,0cyclictest0-21swapper/321:44:563
2345638991111,0cyclictest0-21swapper/300:35:133
2345638991110,1cyclictest69450irq/121-eno121:10:123
2345638991110,1cyclictest0-21swapper/322:45:113
2345638991110,0cyclictest0-21swapper/319:50:133
2345638991110,0cyclictest0-21swapper/300:20:013
234563899110,8cyclictest0-21swapper/322:55:193
234563899110,10cyclictest69450irq/121-eno123:05:153
234563899110,10cyclictest69450irq/121-eno122:31:013
234563899110,10cyclictest69450irq/121-eno122:02:573
234563899110,10cyclictest0-21swapper/300:05:223
234563899110,0cyclictest0-21swapper/323:20:163
234563899110,0cyclictest0-21swapper/320:45:183
234563899109,0cyclictest0-21swapper/319:30:133
234563899108,1cyclictest0-21swapper/322:40:123
2345638991010,0cyclictest69450irq/121-eno122:25:233
2345638991010,0cyclictest69450irq/121-eno121:25:213
2345638991010,0cyclictest69450irq/121-eno119:55:133
2345638991010,0cyclictest69450irq/121-eno100:00:203
2345638991010,0cyclictest0-21swapper/322:05:113
2345638991010,0cyclictest0-21swapper/321:55:143
2345638991010,0cyclictest0-21swapper/321:45:123
2345638991010,0cyclictest0-21swapper/320:30:183
2345638991010,0cyclictest0-21swapper/320:05:183
234563899100,9cyclictest69450irq/121-eno123:27:513
234563899100,9cyclictest69450irq/121-eno120:51:133
234563899100,9cyclictest69450irq/121-eno100:12:383
234563899100,9cyclictest0-21swapper/323:15:183
234563899100,9cyclictest0-21swapper/321:20:133
23456389999,0cyclictest69450irq/121-eno123:02:573
23456389999,0cyclictest69450irq/121-eno122:50:133
23456389999,0cyclictest69450irq/121-eno122:35:143
23456389999,0cyclictest69450irq/121-eno122:16:253
23456389999,0cyclictest69450irq/121-eno119:35:353
23456389999,0cyclictest69450irq/121-eno119:20:143
23456389999,0cyclictest69450irq/121-eno119:20:143
23456389999,0cyclictest69450irq/121-eno100:20:173
23456389999,0cyclictest0-21swapper/323:55:183
23456389999,0cyclictest0-21swapper/323:50:133
23456389999,0cyclictest0-21swapper/323:40:013
23456389999,0cyclictest0-21swapper/323:30:203
23456389999,0cyclictest0-21swapper/319:15:013
23456389998,0cyclictest0-21swapper/321:40:013
23456389990,8cyclictest69450irq/121-eno100:27:083
23456389988,0cyclictest69450irq/121-eno123:35:273
23456389988,0cyclictest69450irq/121-eno121:51:143
23456389988,0cyclictest69450irq/121-eno121:15:163
23456389988,0cyclictest69450irq/121-eno100:30:173
23456389988,0cyclictest0-21swapper/321:10:003
23456389987,0cyclictest0-21swapper/320:10:143
23456389977,0cyclictest0-21swapper/320:20:203
23456389966,0cyclictest69450irq/121-eno120:57:133
23456389964,1cyclictest0-21swapper/319:10:143
2343851261,3sleep10-21swapper/119:05:121
23456389955,0cyclictest69450irq/121-eno120:40:163
23456389955,0cyclictest69450irq/121-eno119:40:143
23456389951,2cyclictest0-21swapper/320:00:133
2344626250,3sleep30-21swapper/319:05:183
23456389940,3cyclictest2390335-21chrt21:00:293
23456389940,3cyclictest2371471-21chrt20:15:063
23456389940,2cyclictest0-21swapper/320:35:133
2343880241,1sleep20-21swapper/219:05:132
2453327230,1sleep12453346-21apt-get23:35:011
2415348230,1sleep02415374-21apt-get22:05:110
2402571230,2sleep12402575-21ssh21:34:341
2400599230,2sleep02400631-21systemd-run21:30:000
2387522230,2sleep00-21swapper/020:55:140
2375592230,1sleep02375618-21apt-get20:25:120
2344754231,0sleep00-21swapper/019:05:190
2481345220,1sleep12481573-21latency_hist00:40:021
2472708220,1sleep22472719-21munin-run00:20:012
2472696220,1sleep10-21swapper/100:19:561
2468942220,1sleep02469215-21df_inode00:10:190
2461473220,1sleep00-21swapper/023:50:210
2455666220,0sleep00-21swapper/023:39:570
2453077220,0sleep00-21swapper/023:32:520
2451488220,0sleep12451514-21apt-get23:30:131
2449397220,0sleep12449423-21apt-get23:25:131
2447753220,1sleep02447839-21irqstats23:20:200
2440047220,0sleep00-21swapper/023:01:020
2439248220,1sleep22439418-21ntpq23:00:162
2437113220,0sleep00-21swapper/022:55:180
2415970220,1sleep12416118-21ntp_states22:05:161
2415095220,1sleep22415131-21munin-run22:05:012
2406255220,1sleep12406260-21sshd21:40:581
2399839220,1sleep12400050-21unixbench-2d21:25:211
2384160220,1sleep12384308-21find20:45:191
2380040220,1sleep12380189-21ntp_states20:35:181
2373146220,1sleep00-21swapper/020:20:000
2365178220,1sleep00-21swapper/019:56:150
2358206220,1sleep22358493-21df19:40:162
2352060220,1sleep00-21swapper/019:25:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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