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2026-05-24 - 10:34
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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 Sat May 23, 2026 14:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23953211730,11sleep023952-21/usr/sbin/munin07:05:190
249189917636,123cyclictest14519-21runrttasks10:35:500
24918991648,15cyclictest27396-21apt-get07:18:200
24918991629,17cyclictest18175-21ntp_states08:45:420
249189916257,84cyclictest29072-21sendmail_mailtr09:25:460
249189916043,99cyclictest3650irq/20-4900000007:32:120
249189916042,103cyclictest13792-21latency_hist10:35:030
24918991598,20cyclictest5020-21open_files12:00:420
249189915939,108cyclictest921-21gpgv07:40:120
249189915838,108cyclictest22529-21seq09:00:320
24918991567,37cyclictest20400-21apt-get11:01:400
249189915640,104cyclictest801-21dbus-daemon09:10:010
24918991558,23cyclictest12771-21fw_forwarded_lo12:30:340
24918991556,18cyclictest22040-21apt-get11:07:080
249189915440,102cyclictest25053-21if_err_eth009:10:400
24918991537,31cyclictest21441-21chrt08:57:170
249189915348,93cyclictest26491-21runrttasks11:20:180
249189915323,18cyclictest12890-21wget08:25:150
24918991529,17cyclictest10424-21df08:15:230
24918991528,17cyclictest1484-21wget09:45:130
249189915244,96cyclictest681-21runrttasks07:40:050
249189915149,92cyclictest18188-21apt-key10:50:260
249189915140,15cyclictest10150irq/55-4a10000010:16:430
249189915139,100cyclictest17096-21systemctl08:40:460
249189915138,101cyclictest16758-21ntp_kernel_err10:45:340
249189915137,16cyclictest1276-21runrttasks12:28:170
249189915137,103cyclictest1235-21runrttasks09:44:160
249189915136,13cyclictest10150irq/55-4a10000010:04:470
24918991507,32cyclictest6505-21wget10:05:140
249189915051,91cyclictest2747-21mailstats11:51:310
249189915040,14cyclictest10150irq/55-4a10000011:45:300
249189915034,21cyclictest25383-21ntpq07:10:370
249189915033,20cyclictest27670-21ntp_states09:20:370
249189915030,19cyclictest1408-21nginx08:05:150
249189914940,97cyclictest29523-21seq07:25:390
249189914938,16cyclictest11203-21sshd10:24:060
249189914934,25cyclictest8576-21fw_conntrack12:15:250
249189914934,20cyclictest2010-21node09:56:390
249189914929,22cyclictest801-21dbus-daemon08:00:010
249189914927,18cyclictest27421-21apt-get11:27:140
249189914916,40cyclictest2010-21node08:36:260
249189914836,98cyclictest26407-21runrttasks09:15:390
249189914834,17cyclictest90442chrt08:10:370
249189914833,13cyclictest0-21swapper/010:25:120
249189914819,20cyclictest1305-21snmpd08:04:210
24918991476,28cyclictest27979-21wget07:20:140
249189914736,21cyclictest12175-21sshd08:20:520
249189914729,20cyclictest754-21systemd-journal11:16:060
24918991468,21cyclictest7453-21/usr/sbin/munin12:10:360
24918991468,17cyclictest31874-21diskstats11:40:260
24918991467,29cyclictest31386-21/usr/sbin/munin09:35:130
24918991467,13cyclictest20238-21apt-config08:55:080
249189914641,93cyclictest29182-21aten_r7power_cu11:30:100
24918991459,18cyclictest14132-21wget08:30:160
24918991457,28cyclictest787-21haveged12:25:030
249189914539,94cyclictest8615-21runrttasks10:13:260
249189914533,18cyclictest3995-21runrttasks11:56:030
249189914531,16cyclictest19500-21seq10:55:220
249189914530,17cyclictest3894-21df07:50:180
249189914429,12cyclictest10150irq/55-4a10000012:35:370
249189914426,16cyclictest15261-21grep10:40:140
249189914328,15cyclictest29894-21cat09:30:120
249189914324,21cyclictest24036-21/usr/sbin/munin11:10:250
249189914227,15cyclictest2653-21df07:45:180
249189914133,20cyclictest7077-21wc12:10:040
249189914033,15cyclictest31206-21seq11:37:220
24918991397,25cyclictest1305-21snmpd09:50:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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