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2025-03-17 - 09:31
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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rackfslot4.osadl.org (updated Mon Mar 17, 2025 00:45:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2546121180,2chrt25462-21/usr/sbin/munin22:06:050
985021170,4chrt7642-21sendmail-msp19:24:020
2943621170,2chrt28928-21sendmail-msp23:21:100
2141421170,2chrt19273-21sendmail-msp23:04:370
1335921140,2chrt13358-21awk21:41:040
558621130,3chrt5585-21apt-config21:25:190
1614921010,3chrt16152-21cut19:35:440
181812970,1sleep018185-21latency_hist00:05:180
279432920,2sleep027944-21cat00:25:230
185862880,1sleep018590-21cpuspeed19:41:220
103892880,3chrt10295-21apt-get23:50:270
27332870,4chrt2176-21apt-get22:25:490
18012830,1sleep01799-21nfs4_client22:23:520
96122800,1sleep09613-21sh22:40:000
5532790,1sleep0554-21cat23:30:040
249982750,1sleep024999-21cat22:05:170
142212720,1sleep014222-21rm22:50:390
102322700,1sleep010233-21ls23:50:050
62702670,1sleep06273-21sed21:26:150
2543906435,21cyclictest25420-21sendmail-msp00:21:290
2543906432,22cyclictest31422-21ntpq21:11:450
2543906432,14cyclictest9824-21apt-get22:40:490
260482630,2chrt26050-21irqrtprio21:01:510
2543906334,19cyclictest18635-21users00:06:030
2543906333,21cyclictest6829-21sshd23:41:350
2543906328,19cyclictest5116-21diskstats20:21:110
2543906235,9cyclictest26849-21sendmail-msp20:00:280
2543906234,20cyclictest15983-21ssh21:46:400
2543906232,21cyclictest22558-21tr22:00:010
2543906229,14cyclictest15221-21df_inode20:41:030
2543906228,24cyclictest13107-21/usr/sbin/munin23:56:140
2543906228,13cyclictest294-21rs:main0
2543906136,15cyclictest4972-21ps23:37:100
2543906132,13cyclictest27588-21apt-get21:05:410
2543906130,22cyclictest25713-21snmpd00:16:400
2543906130,21cyclictest8725-21ntpq21:31:280
2543906130,20cyclictest3450-21python320:16:230
2543906032,20cyclictest3133-21ssh21:20:040
2543906031,19cyclictest21953-21python323:05:410
2543906029,23cyclictest28015-21ntpq22:11:310
2543906029,22cyclictest2657-21/usr/sbin/munin19:10:290
2543906029,13cyclictest7145-21apt-get20:25:130
2543906028,23cyclictest10329-21/usr/sbin/munin21:35:360
2543906028,20cyclictest502-21ntpq20:10:550
2543906027,22cyclictest17515-21df_inode21:50:390
2543906027,13cyclictest4634-21df_inode22:30:460
2543905935,14cyclictest1837-21ps00:37:500
2543905933,19cyclictest29464-21apt-get20:05:140
2543905932,19cyclictest24958-21munin-run21:00:050
2543905931,20cyclictest17651-21cpuspeed20:45:510
2543905929,21cyclictest27617-21ntp_states23:16:570
2543905928,13cyclictest29931-21chrt22:15:400
2543905928,12cyclictest24418-21sleep23:11:030
2543905926,23cyclictest21348-21ntpq00:11:570
2543905835,15cyclictest16982-21seq22:55:390
2543905835,12cyclictest21755-21users20:52:240
2543905833,11cyclictest252-21jbd2/sda-819:46:060
2543905830,8cyclictest5545-21/usr/sbin/munin19:15:330
2543905827,12cyclictest15172-21latency_hist19:35:020
2543905826,23cyclictest10156-21perl20:30:390
2543905825,18cyclictest1021-21ssh23:30:400
2543905732,18cyclictest7642-21sendmail-msp19:25:090
2543905726,22cyclictest22828-21sed19:50:460
2543905633,15cyclictest12228-21apt-get20:35:130
2543905626,20cyclictest25027-21/usr/sbin/munin19:55:420
2543905625,12cyclictest30152-21/usr/sbin/munin00:30:380
2543904928,12cyclictest2545-21latency_hist19:10:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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