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2026-03-11 - 08:36
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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 50 highest latencies:
System rack7slot8.osadl.org (updated Wed Mar 11, 2026 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12320223340,53sleep00-21swapper/019:07:560
12631991667,14cyclictest15094-21apt-get19:22:120
126319916636,33cyclictest27443-21runrttasks20:05:590
126319916347,12cyclictest8950irq/40-mmc122:15:420
126319916346,13cyclictest8950irq/40-mmc120:20:220
126319916331,23cyclictest0-21swapper/021:38:540
126319916127,29cyclictest10250irq/56-4a10000022:20:140
126319916044,19cyclictest6770-21apt-key23:00:210
12631991568,20cyclictest19820-21diskstats23:50:380
126319915351,14cyclictest22089-21cat21:55:030
126319915247,19cyclictest18762-21runrttasks23:47:270
126319915245,20cyclictest304-21runrttasks22:35:360
126319915243,14cyclictest10150irq/55-4a10000021:25:180
126319915146,13cyclictest10150irq/55-4a10000021:15:250
126319915144,13cyclictest10150irq/55-4a10000021:55:480
126319915141,17cyclictest1823-21latency_hist20:35:030
126319915129,12cyclictest0-21swapper/020:58:450
12631991507,23cyclictest9300-21wget23:10:130
12631991507,15cyclictest4564-21diskstats20:45:220
126319915037,22cyclictest32108-21latency_hist22:35:070
126319914958,10cyclictest101ktimersoftd/023:35:240
126319914844,19cyclictest30755-21latency_hist00:35:030
126319914843,20cyclictest28579-21/usr/sbin/munin00:25:270
126319914842,17cyclictest16862-21aten_r7power_cu19:25:100
126319914842,14cyclictest10150irq/55-4a10000020:35:250
126319914820,16cyclictest3737-21latency_hist22:50:050
126319914750,13cyclictest22022-21latency_hist00:00:070
126319914747,18cyclictest16754-21sshd21:32:190
126319914745,11cyclictest29309-21wget20:15:140
126319914742,18cyclictest11415-21ntp_offset21:11:090
126319914655,11cyclictest101ktimersoftd/022:25:190
126319914645,14cyclictest10150irq/55-4a10000022:11:000
126319914644,16cyclictest18591-21/usr/sbin/munin19:30:460
126319914640,18cyclictest3691-21sendmail_mailtr20:40:580
126319914625,12cyclictest0-21swapper/023:19:150
126319914459,10cyclictest101ktimersoftd/019:10:280
126319914442,18cyclictest24084-21runrttasks00:06:470
126319914439,19cyclictest17866-21latency_hist23:45:020
126319914438,19cyclictest8677-21runrttasks23:06:300
126319914336,21cyclictest20251-21systemctl21:45:450
12631991431,42cyclictest8284-21df21:00:170
126319914241,13cyclictest10150irq/55-4a10000000:15:140
12631991409,16cyclictest1305-21snmpd00:14:280
126319914055,11cyclictest101ktimersoftd/023:25:130
126319914053,10cyclictest101ktimersoftd/021:20:160
126319914040,17cyclictest2555-21latency_hist22:45:040
126319913955,12cyclictest101ktimersoftd/020:00:160
126319913940,17cyclictest22304-21/usr/sbin/munin00:00:150
12631991389,21cyclictest1305-21snmpd19:43:290
126319913745,13cyclictest10150irq/55-4a10000022:00:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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