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2026-04-16 - 01:57
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Wed Apr 15, 2026 12:44:11)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9729224190,14sleep08739-1kworker/u3:207:03:330
104839910627,47cyclictest0-21swapper11:04:420
104839910418,24cyclictest24779-21users11:54:350
104839910331,54cyclictest3779-21cat09:19:200
104839910230,54cyclictest15140-21cut09:53:140
104839910219,23cyclictest8365-21apt-get11:08:100
104839910116,62cyclictest17500-21/usr/sbin/munin07:48:520
104839910114,64cyclictest28769-21/usr/sbin/munin10:34:290
104839910111,67cyclictest4798-21ssh12:31:460
104839910018,63cyclictest27801-21memory12:03:580
104839910017,53cyclictest0-21swapper12:16:380
104839910017,45cyclictest17587-21ntp_states11:34:140
104839910016,45cyclictest10126-21df09:38:260
104839910015,25cyclictest2236-21ssh09:14:460
104839910014,69cyclictest1645-21egrep10:48:190
104839910013,47cyclictest6727-21/usr/sbin/munin09:28:290
10483999916,61cyclictest30568-21munin-run12:12:420
10483999915,64cyclictest2145-21irqstats12:23:520
10483999912,67cyclictest594-21ssh12:19:150
10483999911,22cyclictest30839-21df_inode10:38:320
10483999838,44cyclictest25793-21irqstats10:23:540
10483999829,51cyclictest0-21swapper11:59:510
10483999817,44cyclictest21352-21users11:44:340
10483999816,42cyclictest5047-21df_inode09:23:360
10483999811,24cyclictest18448-21latency_hist10:02:500
10483999810,26cyclictest5647-21ssh12:33:580
1048399979,66cyclictest4171-21awk10:54:370
10483999717,61cyclictest23614-21apt-get10:18:060
10483999714,63cyclictest10537-21irqstats11:13:540
10483999713,63cyclictest31933-21apt-get09:08:100
10483999711,26cyclictest18622-21ssh10:03:160
10483999710,25cyclictest14055-21sendmail_mailqu09:49:210
10483999635,44cyclictest0-21swapper11:22:390
10483999621,60cyclictest0-21swapper11:27:260
10483999617,57cyclictest22805-21munin-run08:17:420
10483999616,60cyclictest22329-21irqstats10:13:480
10483999616,58cyclictest15505-21df11:28:220
10483999615,61cyclictest9074-21users09:34:310
10483999615,23cyclictest18959-21df11:38:290
10483999614,22cyclictest5330-21fw_packets10:58:490
10483999516,19cyclictest22567-21irqstats11:48:540
10483999515,60cyclictest32752-21memory10:44:020
10483999515,59cyclictest27103-21ssh10:28:120
10483999515,59cyclictest20547-21fw_conntrack10:08:410
10483999515,59cyclictest15827-21wget07:38:050
10483999511,61cyclictest18474-21basename07:53:050
10483999441,23cyclictest15607-21sendmail07:37:420
10483999410,48cyclictest12082-21ssh09:43:570
10483999314,59cyclictest10580-21/usr/sbin/munin07:07:520
10483999232,42cyclictest0-21swapper08:52:520
10483999117,23cyclictest28510-21df08:48:080
10483999117,18cyclictest26402-21munin-run08:37:420
10483999113,21cyclictest0-21swapper07:28:010
10483999016,53cyclictest19314-21apt-get07:57:580
1048399899,45cyclictest12832-21unixbench_singl07:18:490
10483998917,23cyclictest24916-21df08:28:120
10483998915,22cyclictest20212-21apt-get08:03:000
10483998914,26cyclictest21096-21/usr/sbin/munin08:08:420
10483998913,34cyclictest28052-21/usr/sbin/munin08:43:430
10483998913,26cyclictest16887-21/usr/sbin/munin07:43:170
10483998912,42cyclictest31268-21df_abs09:03:140
10483998911,41cyclictest1690-21snmpd07:13:050
10483998813,58cyclictest30111-21/usr/sbin/munin08:58:020
10483998811,59cyclictest23310-21sort08:18:280
10483998715,25cyclictest26991-21ntp_states08:38:390
10483998616,22cyclictest24028-21df08:23:120
10483998517,22cyclictest13136-21egrep07:23:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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