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2025-10-15 - 13:48
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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 Tue Oct 14, 2025 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1115927270,10sleep011158-21fw_conntrack07:05:200
121219912447,25cyclictest0-21swapper/012:36:090
16149212214,12sleep016152-21df07:25:190
27628211011,13sleep027658-21basename10:20:140
2728921075,11sleep027317-21cpu12:25:220
1227021075,12sleep012321-21ps11:25:510
2015121065,13sleep020192-21aten_r7power_po09:50:140
9596210414,11sleep09598-21memory11:15:350
2748421045,12sleep027485-21memory08:10:360
1562921035,14sleep015649-21mailstats09:30:470
1079821035,11sleep010799-21fw_forwarded_lo11:20:280
28822210219,71sleep0101ktimersoftd/008:15:450
2661421025,86sleep01356-21snmpd08:06:200
105152996,11sleep010514-21ntp_states09:10:430
219462976,11sleep021954-21users09:55:480
78552954,11sleep07866-21fw_conntrack09:00:270
219812955,11sleep021984-21df_inode12:05:250
12121999340,17cyclictest21262-21runrttasks07:45:360
12121999237,16cyclictest1801-21node10:41:440
12121999143,31cyclictest19505-21diskstats11:55:350
37102905,74sleep03713-21diskstats08:45:220
12121999037,40cyclictest10250irq/56-4a10000008:31:150
12121998935,18cyclictest26508-21processes12:21:290
123352885,11sleep00-21swapper/009:18:400
12121998850,24cyclictest101ktimersoftd/011:00:350
12121998837,16cyclictest1336-21runrttasks08:20:460
12121998836,34cyclictest23079-21wget12:10:160
1212199878,16cyclictest1356-21snmpd07:35:040
12121998763,11cyclictest101ktimersoftd/010:26:000
12121998624,31cyclictest27107-21apt-get10:17:060
12121998543,27cyclictest3650irq/20-4900000012:15:250
140852846,64sleep014088-21df09:25:260
12121998454,13cyclictest10150irq/55-4a10000008:55:530
12121998453,16cyclictest10150irq/55-4a10000011:00:030
12121998439,30cyclictest101ktimersoftd/009:20:480
12121998425,14cyclictest18749-21latency_hist09:45:040
1212199836,22cyclictest18640-21users11:50:500
12121998337,30cyclictest10250irq/56-4a10000009:35:300
12121998243,25cyclictest101ktimersoftd/010:05:310
12121998221,16cyclictest5988-21apt-config08:55:080
12121998218,13cyclictest10250irq/56-4a10000012:32:060
1212199808,21cyclictest17413-21diskstats07:30:250
1212199806,56cyclictest1356-21snmpd08:00:100
1212199798,16cyclictest1356-21snmpd07:55:080
1212199797,35cyclictest19711-21/usr/sbin/munin07:40:160
12121997960,11cyclictest101ktimersoftd/010:35:370
12121997959,13cyclictest101ktimersoftd/009:05:350
12121997950,13cyclictest10150irq/55-4a10000012:00:260
12121997947,14cyclictest10150irq/55-4a10000011:45:310
12121997859,11cyclictest101ktimersoftd/009:45:210
12121997849,12cyclictest10150irq/55-4a10000010:30:310
12121997835,30cyclictest101ktimersoftd/008:35:230
1212199777,33cyclictest14214-21apt-cache07:17:120
1212199777,19cyclictest14960-21fw_forwarded_lo07:20:290
12121997758,11cyclictest101ktimersoftd/011:35:280
12121997731,32cyclictest101ktimersoftd/008:40:300
1212199767,32cyclictest22825-21sshd07:50:570
12121997647,13cyclictest10150irq/55-4a10000010:49:460
12121997647,12cyclictest10150irq/55-4a10000011:08:250
1212199758,15cyclictest1336-21runrttasks11:11:160
1212199757,19cyclictest13258-21diskstats11:30:240
12121997557,11cyclictest101ktimersoftd/011:40:490
12121997557,10cyclictest101ktimersoftd/010:02:210
12121997554,12cyclictest101ktimersoftd/007:10:210
12121997544,14cyclictest10150irq/55-4a10000010:50:390
12121997440,22cyclictest3650irq/20-4900000010:10:260
12121997352,12cyclictest101ktimersoftd/008:25:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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