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2025-10-31 - 16:29
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Fri Oct 31, 2025 13:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9892224231,176sleep00-21swapper/007:07:250
102819917324,44cyclictest10250irq/56-4a10000009:26:030
102819916741,108cyclictest10250irq/56-4a10000007:15:130
102819916654,16cyclictest10150irq/55-4a10000010:15:420
10281991638,29cyclictest1674-21ntpd09:35:380
102819916227,25cyclictest19712-21sendmail-msp12:00:030
102819916039,17cyclictest32003-21wget08:35:140
102819915929,12cyclictest0-21swapper/012:31:500
102819915844,17cyclictest79372chrt11:10:480
102819915649,15cyclictest18151-21tr09:45:420
102819915647,17cyclictest10977-21apt11:25:020
102819915632,23cyclictest0-21swapper/012:26:480
102819915538,25cyclictest1309-21fw_conntrack10:45:260
10281991549,20cyclictest9388-21apt-get09:17:340
102819915445,16cyclictest10250irq/56-4a10000010:06:150
102819915443,12cyclictest10150irq/55-4a10000011:46:400
102819915245,19cyclictest9402-21runrttasks09:15:040
10281991508,17cyclictest29814-21/usr/sbin/munin10:30:430
102819915048,16cyclictest3513-21cat10:55:030
102819915038,18cyclictest18515-21latency_hist11:55:040
102819915036,24cyclictest3650irq/20-4900000009:55:050
102819915033,24cyclictest760-21systemd-journal11:34:370
102819914940,18cyclictest18590-21sshd07:40:360
102819914939,19cyclictest31390-21runrttasks10:36:020
102819914860,11cyclictest101ktimersoftd/009:20:160
102819914842,18cyclictest16412-21runrttasks07:31:170
102819914842,13cyclictest10150irq/55-4a10000008:20:440
102819914841,19cyclictest16005-21latency_hist11:45:030
102819914840,20cyclictest26781-21runrttasks08:14:410
102819914838,18cyclictest13810-21sendmail_mailtr07:20:470
102819914751,10cyclictest101ktimersoftd/011:25:350
102819914748,12cyclictest11419-21awk07:11:310
102819914744,18cyclictest14437-21runrttasks11:37:490
102819914741,18cyclictest4800-21latency_hist11:00:040
102819914737,21cyclictest29009-21runrttasks12:35:480
102819914656,12cyclictest101ktimersoftd/008:15:230
102819914645,16cyclictest28779-21seq10:25:550
102819914641,18cyclictest17806-21runrttasks07:37:340
102819914640,16cyclictest14012-21runrttasks09:30:050
102819914638,17cyclictest25551-21latency_hist10:15:040
102819914637,22cyclictest1424-21nginx09:00:260
102819914637,21cyclictest22651-21http10:05:030
102819914637,20cyclictest21386-21munin-run10:00:020
102819914636,14cyclictest10150irq/55-4a10000008:30:300
102819914557,11cyclictest101ktimersoftd/008:55:330
102819914557,11cyclictest101ktimersoftd/007:45:420
102819914541,16cyclictest30075-21runrttasks08:25:490
102819914540,19cyclictest14897-21runrttasks07:25:420
102819914539,18cyclictest22300-21runrttasks12:10:110
102819914529,21cyclictest3276-21/usr/sbin/munin08:50:280
102819914456,11cyclictest101ktimersoftd/008:45:240
102819914353,10cyclictest101ktimersoftd/011:00:490
102819914340,18cyclictest20926-21runrttasks12:04:540
102819914337,21cyclictest21042-21sshd07:50:370
102819914336,19cyclictest802-21dbus-daemon11:20:000
10281991426,14cyclictest23083-21latency_hist08:00:050
102819914246,14cyclictest32393-21grep10:40:140
102819914239,21cyclictest23976-21open_inodes12:15:430
102819914237,20cyclictest25098-21seq12:20:450
102819914153,11cyclictest101ktimersoftd/012:05:170
102819913853,10cyclictest101ktimersoftd/008:00:310
102819913842,19cyclictest16739-21diskstats09:40:230
102819913741,18cyclictest8152-21munin-plugin-st09:10:020
102819913344,12cyclictest10150irq/55-4a10000008:05:430
10281997859,11cyclictest101ktimersoftd/011:05:300
10281997648,18cyclictest26895-21/usr/sbin/munin10:20:100
1028199741,38cyclictest1166-21ntp_states08:40:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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