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2025-11-12 - 09:12
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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 Nov 12, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1523226945,58sleep00-21swapper/019:05:440
21129917124,25cyclictest1424-21nginx23:53:300
21129916942,116cyclictest9083-21runrttasks19:35:300
21129916441,102cyclictest19211-21/usr/sbin/munin00:30:480
21129916427,119cyclictest163602chrt00:18:130
21129916426,119cyclictest1356-21snmpd20:04:050
21129916229,113cyclictest16758-21wget20:05:180
2112991618,30cyclictest1424-21nginx19:53:250
21129916125,14cyclictest10250irq/56-4a10000020:38:360
21129916123,123cyclictest3226-21df_inode21:20:210
21129916122,20cyclictest8038-21wget21:40:130
21129916028,111cyclictest1336-21runrttasks22:50:310
2112991589,21cyclictest9651-21ntp_states21:45:440
2112991588,35cyclictest1356-21snmpd20:14:070
21129915839,107cyclictest11190-21sendmail00:00:010
21129915827,19cyclictest21609-21http00:40:050
21129915824,117cyclictest1356-21snmpd22:19:340
21129915728,114cyclictest7635-21wget19:30:130
21129915725,15cyclictest10250irq/56-4a10000020:28:030
21129915721,15cyclictest10250irq/56-4a10000023:34:480
21129915644,102cyclictest1690-21ntp_kernel_pll_23:20:390
21129915628,18cyclictest6030-21sshd19:23:300
21129915624,20cyclictest1356-21snmpd21:33:380
2112991557,20cyclictest6810-21wget21:35:160
2112991556,22cyclictest11565-21sshd21:54:390
21129915533,107cyclictest10250irq/56-4a10000021:00:130
21129915522,18cyclictest31764-21wget21:05:170
21129915519,16cyclictest27175-21grep22:55:140
21129915436,106cyclictest13193-21sshd21:59:380
2112991538,19cyclictest31511-21fw_forwarded_lo23:10:460
21129915328,15cyclictest6319-21/usr/sbin/munin23:40:120
21129915326,20cyclictest1356-21snmpd22:39:380
21129915321,15cyclictest10250irq/56-4a10000023:18:330
21129915317,16cyclictest14737-21wget22:05:160
21129915311,15cyclictest0-21swapper/022:28:450
2112991528,22cyclictest7948-21ntp_states23:45:420
2112991528,19cyclictest4592-21apt-get19:17:230
21129915237,102cyclictest26908-21fw_conntrack20:45:250
21129915233,104cyclictest10250irq/56-4a10000022:03:170
21129915218,11cyclictest14857-21sshd00:14:170
21129915125,114cyclictest12546-21latency_hist19:50:070
21129915117,17cyclictest29657-21wget23:05:150
21129915039,100cyclictest2987-21runrttasks23:25:450
21129915032,107cyclictest10090-21/usr/sbin/munin19:40:380
21129915014,123cyclictest1424-21nginx22:13:430
21129914937,100cyclictest760-21systemd-journal20:53:470
21129914926,111cyclictest792-21haveged22:45:180
21129914925,112cyclictest760-21systemd-journal00:22:390
21129914913,124cyclictest4662-21ntpq21:25:400
21129914843,90cyclictest10150irq/55-4a10000000:30:030
21129914739,95cyclictest6731-21seq19:25:400
21129914640,94cyclictest29509-21awk20:55:360
2112991459,19cyclictest25698-21if_eth020:40:290
21129914529,102cyclictest3156-21sshd19:13:390
21129914526,107cyclictest28747-21ntpq23:00:400
21129914523,109cyclictest22018-21wc22:35:030
2112991446,14cyclictest5062-21apt23:35:130
21129914444,90cyclictest23726-21awk22:40:350
21129914444,89cyclictest19386-21/usr/sbin/munin20:15:220
21129914424,17cyclictest20743-21irqstats20:20:300
21129914340,93cyclictest19192-21seq22:22:280
21129914329,103cyclictest792-21haveged19:55:470
21129914321,12cyclictest1364-21sshd00:03:520
21129914319,18cyclictest2514-21apt-get21:17:070
21129914136,94cyclictest1063-21find21:10:470
21129913934,94cyclictest23850-21runrttasks20:33:210
21129913925,103cyclictest12834-21/usr/sbin/munin00:05:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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