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2026-04-06 - 21:19
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack3slot3.osadl.org (updated Mon Apr 06, 2026 12:46:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
128501180irq/42-ahci0-21swapper/807:09:3910
128501180irq/42-ahci0-21swapper/807:09:3910
16726211095sleep100-21swapper/1007:06:012
16726211095sleep100-21swapper/1007:06:002
16812210794sleep20-21swapper/207:07:044
16812210794sleep20-21swapper/207:07:044
16788210692sleep70-21swapper/707:06:459
16788210692sleep70-21swapper/707:06:459
16767210391sleep50-21swapper/507:06:317
16767210391sleep50-21swapper/507:06:317
9918501010irq/53-eth0-rx-0-21swapper/107:08:281
9918501010irq/53-eth0-rx-0-21swapper/107:08:281
1706629489sleep40-21swapper/407:09:436
1706629489sleep40-21swapper/407:09:436
991850890irq/53-eth0-rx-0-21swapper/307:05:205
991850890irq/53-eth0-rx-0-21swapper/307:05:205
991850880irq/53-eth0-rx-0-21swapper/1107:07:403
991850880irq/53-eth0-rx-0-21swapper/1107:07:403
1708528681sleep90-21swapper/907:10:0111
1708528681sleep90-21swapper/907:10:0011
1695225853sleep00-21swapper/007:08:150
1695225853sleep00-21swapper/007:08:140
1670825853sleep60-21swapper/607:05:448
1670825853sleep60-21swapper/607:05:448
1723099320cyclictest0-21swapper/1109:19:313
17188992120cyclictest0-21swapper/008:17:530
17188992018cyclictest0-21swapper/009:08:290
1722999192cyclictest991850irq/53-eth0-rx-12:34:442
1722999192cyclictest991850irq/53-eth0-rx-12:29:352
1722999192cyclictest991850irq/53-eth0-rx-12:07:032
1722999192cyclictest991850irq/53-eth0-rx-11:16:492
1722999192cyclictest991850irq/53-eth0-rx-11:06:142
1722999192cyclictest991850irq/53-eth0-rx-10:14:222
1722999192cyclictest991850irq/53-eth0-rx-10:14:222
1722999192cyclictest991850irq/53-eth0-rx-09:30:252
1722999192cyclictest991850irq/53-eth0-rx-09:19:142
1722999192cyclictest12850irq/42-ahci08:08:502
1722899192cyclictest0-21swapper/912:21:1711
1722899192cyclictest0-21swapper/912:06:2211
1722899192cyclictest0-21swapper/912:01:0311
1722899192cyclictest0-21swapper/911:17:4611
1722899192cyclictest0-21swapper/910:38:5711
1722899192cyclictest0-21swapper/910:25:3511
1722899192cyclictest0-21swapper/909:20:4911
1718899190cyclictest0-21swapper/009:28:430
1718899190cyclictest0-21swapper/009:28:430
115050190irq/18-i801_smb0-21swapper/407:12:276
115050190irq/18-i801_smb0-21swapper/407:12:276
17229991817cyclictest0-21swapper/1011:38:412
17229991817cyclictest0-21swapper/1011:26:262
17229991817cyclictest0-21swapper/1011:00:272
17229991817cyclictest0-21swapper/1010:17:282
17229991817cyclictest0-21swapper/1009:39:172
17229991817cyclictest0-21swapper/1008:43:452
17229991817cyclictest0-21swapper/1007:45:152
17229991816cyclictest9294-21munin-run10:30:002
1722999181cyclictest991950irq/54-eth0-tx-11:55:052
1722999181cyclictest991950irq/54-eth0-tx-09:40:342
1722999181cyclictest991850irq/53-eth0-rx-12:35:392
1722999181cyclictest991850irq/53-eth0-rx-12:22:082
1722999181cyclictest991850irq/53-eth0-rx-12:15:042
1722999181cyclictest991850irq/53-eth0-rx-12:13:382
1722999181cyclictest991850irq/53-eth0-rx-12:02:102
1722999181cyclictest991850irq/53-eth0-rx-11:53:232
1722999181cyclictest991850irq/53-eth0-rx-11:40:102
1722999181cyclictest991850irq/53-eth0-rx-11:33:182
1722999181cyclictest991850irq/53-eth0-rx-11:20:372
1722999181cyclictest991850irq/53-eth0-rx-11:10:492
1722999181cyclictest991850irq/53-eth0-rx-10:06:182
1722999181cyclictest991850irq/53-eth0-rx-10:06:182
1722999181cyclictest991850irq/53-eth0-rx-09:58:152
1722999181cyclictest991850irq/53-eth0-rx-09:58:152
1722999181cyclictest991850irq/53-eth0-rx-09:54:462
1722999181cyclictest991850irq/53-eth0-rx-09:46:022
1722999181cyclictest991850irq/53-eth0-rx-09:46:022
1722999181cyclictest991850irq/53-eth0-rx-09:20:462
1722999181cyclictest991850irq/53-eth0-rx-09:10:152
1722999181cyclictest15942chrt08:59:492
1722999181cyclictest12850irq/42-ahci08:24:402
1722899181cyclictest991950irq/54-eth0-tx-09:49:0611
1722899181cyclictest991950irq/54-eth0-tx-09:49:0611
1722899181cyclictest761ksoftirqd/907:35:2411
1722899181cyclictest0-21swapper/912:15:5411
1722899181cyclictest0-21swapper/912:12:4911
1722899181cyclictest0-21swapper/911:34:3611
1722899181cyclictest0-21swapper/910:34:2211
1722899181cyclictest0-21swapper/910:14:3611
1722899181cyclictest0-21swapper/910:14:3611
1722899181cyclictest0-21swapper/909:50:5511
1722899181cyclictest0-21swapper/909:40:0111
1722899181cyclictest0-21swapper/909:11:4011
1722899181cyclictest0-21swapper/907:30:2511
1722899181cyclictest0-21swapper/907:30:2511
1721299182cyclictest29987-21ssh11:38:305
14050180irq/18-ehci_hcd0-21swapper/009:40:200
1722999170cyclictest991950irq/54-eth0-tx-10:40:302
1722999170cyclictest991950irq/54-eth0-tx-10:00:062
1722999170cyclictest991850irq/53-eth0-rx-11:45:162
1722999170cyclictest991850irq/53-eth0-rx-10:52:002
1722999170cyclictest991850irq/53-eth0-rx-10:30:362
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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