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2026-03-25 - 10:30
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 highest latencies:
System rack7slot8.osadl.org (updated Wed Mar 25, 2026 01:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1865228730,77sleep01631-21/usr/sbin/munin19:05:220
28429916952,31cyclictest101ktimersoftd/019:20:010
28429915944,31cyclictest3650irq/20-4900000022:17:230
374321086,88sleep03751-21/usr/sbin/munin19:11:090
2627321075,85sleep026312-21wc22:45:030
1402721075,11sleep014055-21cpu00:05:170
11954210712,11sleep0101ktimersoftd/021:50:160
6705210212,12sleep06717-21irqstats23:35:310
3035621025,84sleep030360-21fw_packets23:00:260
1253821026,83sleep012578-21apt-key19:45:120
733121015,11sleep07337-21ntp_states21:30:420
2842999740,38cyclictest0-21swapper/019:38:460
2842999735,26cyclictest1276-21runrttasks23:51:440
221082967,75sleep022111-21df_inode20:20:190
201702956,77sleep018901-21apt-get20:12:040
1808329522,62sleep0101ktimersoftd/020:05:340
100422956,11sleep010043-21users21:40:500
134532945,75sleep013462-21memory21:55:320
46532925,75sleep04656-21df_inode21:20:190
304972926,76sleep030498-21munin-run20:55:020
2842999238,17cyclictest19904-21runrttasks00:28:480
242822926,75sleep024285-21latency_hist20:30:020
2842999148,27cyclictest17973-21sshd00:20:250
210742915,75sleep021138-21processes20:15:430
284299909,46cyclictest8683-21ntp_states19:30:410
9652895,73sleep0967-21irqstats21:05:330
90582895,73sleep09059-21sshd21:38:030
2842998940,35cyclictest3650irq/20-4900000022:37:090
130842895,73sleep013082-21ntp_states00:00:390
2842998724,28cyclictest16863-21grep00:15:420
2842998639,32cyclictest22358-21runrttasks00:38:380
2842998636,15cyclictest10250irq/56-4a10000023:47:220
2842998546,26cyclictest101ktimersoftd/023:15:240
146952856,65sleep014707-21irqstats22:00:300
2842998434,33cyclictest754-21systemd-journal22:32:250
316122834,7sleep00-21swapper/020:59:020
2842998350,19cyclictest2010-21node20:41:470
2842998336,32cyclictest26703-21netstat22:45:350
2842998329,36cyclictest1408-21nginx23:32:220
2842998252,13cyclictest10150irq/55-4a10000022:13:020
2842998145,26cyclictest0-21swapper/023:10:230
2842998140,24cyclictest0-21swapper/023:44:390
2842998035,31cyclictest10250irq/56-4a10000022:07:010
2842998017,29cyclictest787-21haveged19:25:040
246902806,61sleep024692-21irqstats20:30:310
2842997947,14cyclictest10150irq/55-4a10000019:40:390
284299787,16cyclictest20475-21memory00:30:320
2842997859,11cyclictest101ktimersoftd/021:15:160
2842997849,13cyclictest10150irq/55-4a10000022:20:270
2842997846,14cyclictest10150irq/55-4a10000022:55:220
2842997839,12cyclictest21107-21wget22:25:150
2842997758,11cyclictest101ktimersoftd/023:30:010
2842997757,12cyclictest101ktimersoftd/019:55:230
2842997750,12cyclictest10150irq/55-4a10000000:00:010
2842997747,14cyclictest10150irq/55-4a10000023:05:430
2842997747,14cyclictest10150irq/55-4a10000022:55:010
2842997746,14cyclictest10150irq/55-4a10000021:45:210
2842997740,26cyclictest0-21swapper/000:10:240
2842997736,9cyclictest101ktimersoftd/023:20:190
284299767,19cyclictest5909-21diskstats21:25:240
2842997651,17cyclictest2111-21/usr/sbin/munin21:10:180
2842997647,14cyclictest10150irq/55-4a10000019:25:380
2842997646,13cyclictest10150irq/55-4a10000020:45:280
2842997635,27cyclictest3650irq/20-4900000021:00:310
2842997634,34cyclictest10250irq/56-4a10000020:03:500
2842997632,29cyclictest26009-21ntpq20:35:360
2842997547,12cyclictest10150irq/55-4a10000019:50:420
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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