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2025-11-20 - 00:38
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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 19, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11454210620,11sleep011452-21/usr/sbin/munin07:05:530
120709911424,50cyclictest1424-21nginx08:18:410
120709911350,48cyclictest1336-21runrttasks12:16:190
120709911126,32cyclictest28103-21diskstats08:10:250
120709911037,52cyclictest24075-21http10:05:030
120709910930,23cyclictest12549-21ntp_states07:10:430
120709910742,26cyclictest1424-21nginx11:34:220
120709910456,37cyclictest24892-21apt-get08:02:090
120709910416,34cyclictest11882-21chrt09:15:170
120709910339,49cyclictest0-21swapper/011:10:180
120709910331,52cyclictest28629-21ntpq12:25:390
120709910328,36cyclictest2411-21latency_hist10:45:020
120709910026,34cyclictest12868-21/usr/sbin/munin11:25:390
12070999967,23cyclictest19517-21runrttasks11:50:380
12070999965,23cyclictest25318-21latency_hist12:15:070
12070999955,34cyclictest7227-21sshd11:03:380
12070999855,33cyclictest1801-21node08:38:450
12070999825,21cyclictest15283-21seq07:20:510
12070999750,36cyclictest1336-21runrttasks07:50:180
12070999736,43cyclictest31006-21if_err_eth012:35:400
12070999730,34cyclictest28998-21fw_conntrack10:20:460
12070999725,19cyclictest13585-21df07:15:190
12070999724,34cyclictest19631-21chrt09:45:450
12070999721,35cyclictest27514-21seq08:07:510
12070999542,35cyclictest18573-21sshd11:46:210
12070999541,24cyclictest101ktimersoftd/009:25:450
12070999537,44cyclictest22473-21runrttasks09:57:140
12070999535,39cyclictest1336-21runrttasks09:00:260
12070999535,23cyclictest10250irq/56-4a10000011:24:220
12070999532,21cyclictest3986-21diskstats10:50:270
12070999527,51cyclictest15667-21/usr/sbin/munin11:35:450
12070999518,18cyclictest24066-21apt-get10:07:120
12070999432,27cyclictest10250irq/56-4a10000009:34:060
12070999427,27cyclictest24923-21apt-get08:00:040
12070999423,34cyclictest20580-21diskstats11:55:240
12070999323,35cyclictest1356-21snmpd11:42:380
12070999320,37cyclictest6736-21wget08:55:190
12070999320,33cyclictest22021-21/usr/sbin/munin07:50:040
1207099928,18cyclictest1356-21snmpd08:41:580
12070999266,11cyclictest101ktimersoftd/012:22:480
12070999246,36cyclictest5564-21mailstats10:55:490
12070999235,39cyclictest10500-21aten_r7power_en09:10:140
12070999232,45cyclictest1356-21snmpd08:26:530
12070999223,34cyclictest13364-21ntp_states09:20:420
12070999158,23cyclictest30611-21df_inode08:20:210
12070999157,22cyclictest19179-21runrttasks07:37:120
12070999131,44cyclictest792-21haveged10:32:230
12070999120,33cyclictest1356-21snmpd12:32:510
12070999062,20cyclictest10018-21basename11:15:150
12070999052,29cyclictest2562-21aten_r7power_cu10:45:150
12070999020,33cyclictest1356-21snmpd10:17:190
12070998957,22cyclictest781-21sshd08:30:360
12070998946,34cyclictest20272-21runrttasks07:40:520
12070998942,34cyclictest10150irq/55-4a10000009:37:100
12070998921,32cyclictest1356-21snmpd10:25:250
12070998861,20cyclictest18278-21seq07:35:010
12070998823,32cyclictest792-21haveged12:05:040
12070998821,32cyclictest1127-21munin-run10:40:030
12070998742,35cyclictest7701-21df11:05:180
12070998657,19cyclictest22879-21runrttasks12:05:160
12070998654,23cyclictest4478-21fw_forwarded_lo08:45:350
12070998652,24cyclictest5746-21if_eth008:50:320
12070998642,34cyclictest1356-21snmpd07:25:230
12070998622,48cyclictest20471-21wget09:50:150
12070998560,19cyclictest9577-21awk09:05:370
12070998541,34cyclictest25812-21/usr/sbin/munin10:10:320
12070998525,46cyclictest18197-21fw_forwarded_lo09:40:280
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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