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2026-07-28 - 10:32
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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 Tue Jul 28, 2026 00:46:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30549501120irq/53-eth0-rx-0-21swapper/219:09:164
7223210894sleep10-21swapper/119:06:431
122501060irq/42-ahci0-21swapper/719:08:579
3054950950irq/53-eth0-rx-0-21swapper/319:05:435
12250940irq/42-ahci0-21swapper/919:07:5711
3054950930irq/53-eth0-rx-0-21swapper/819:06:3910
3054950890irq/53-eth0-rx-0-21swapper/519:05:147
3054950890irq/53-eth0-rx-0-21swapper/1119:05:513
752328179sleep40-21swapper/419:09:576
751527875sleep100-21swapper/1019:09:512
713726856sleep00-21swapper/019:05:400
726126653sleep60-21swapper/619:07:118
7643994514cyclictest0-21swapper/022:22:530
7643993314cyclictest0-21swapper/021:26:380
7643993029cyclictest0-21swapper/021:12:320
7643993014cyclictest0-21swapper/019:23:240
7674992913cyclictest831ksoftirqd/1022:24:512
7643992826cyclictest2344-21lldpd19:19:300
767499269cyclictest831ksoftirqd/1021:25:282
767499247cyclictest831ksoftirqd/1022:58:382
767499247cyclictest831ksoftirqd/1021:15:182
767499236cyclictest831ksoftirqd/1000:20:082
767499214cyclictest831ksoftirqd/1022:47:032
767499214cyclictest831ksoftirqd/1021:54:012
767499214cyclictest831ksoftirqd/1000:37:222
767499192cyclictest831ksoftirqd/1023:15:262
767499192cyclictest831ksoftirqd/1019:55:142
767499192cyclictest3054950irq/53-eth0-rx-23:59:522
767499192cyclictest3054950irq/53-eth0-rx-23:52:482
767499192cyclictest3054950irq/53-eth0-rx-23:47:562
767499192cyclictest3054950irq/53-eth0-rx-23:41:412
767499192cyclictest3054950irq/53-eth0-rx-22:37:452
767499192cyclictest3054950irq/53-eth0-rx-22:37:452
767499192cyclictest3054950irq/53-eth0-rx-21:21:532
766999192cyclictest0-21swapper/923:01:1711
766899195cyclictest0-21swapper/823:35:1810
114150190irq/18-i801_smb0-21swapper/021:55:240
7674991817cyclictest0-21swapper/1019:30:222
767499181cyclictest831ksoftirqd/1021:10:162
767499181cyclictest831ksoftirqd/1020:40:132
767499181cyclictest811rcuc/1022:00:202
767499181cyclictest3055050irq/54-eth0-tx-22:51:572
767499181cyclictest3055050irq/54-eth0-tx-22:51:572
767499181cyclictest3055050irq/54-eth0-tx-22:25:152
767499181cyclictest3055050irq/54-eth0-tx-00:32:122
767499181cyclictest3054950irq/53-eth0-rx-23:26:102
767499181cyclictest3054950irq/53-eth0-rx-23:10:182
767499181cyclictest3054950irq/53-eth0-rx-22:40:582
767499181cyclictest3054950irq/53-eth0-rx-22:31:052
767499181cyclictest3054950irq/53-eth0-rx-22:16:432
767499181cyclictest3054950irq/53-eth0-rx-21:57:302
767499181cyclictest3054950irq/53-eth0-rx-21:40:052
767499181cyclictest3054950irq/53-eth0-rx-21:35:392
767499181cyclictest3054950irq/53-eth0-rx-19:39:412
7669991816cyclictest19880-21ssh00:00:4511
766999181cyclictest3054950irq/53-eth0-rx-23:16:1211
766999181cyclictest27825-21runrttasks00:08:4011
766999181cyclictest134262sleep920:43:2411
766999181cyclictest0-21swapper/923:32:2711
766999181cyclictest0-21swapper/923:21:2311
766999181cyclictest0-21swapper/922:45:3911
766999181cyclictest0-21swapper/922:30:4111
766999181cyclictest0-21swapper/922:10:1811
766999181cyclictest0-21swapper/921:55:3511
766999181cyclictest0-21swapper/921:36:1211
766999181cyclictest0-21swapper/921:28:4011
766999181cyclictest0-21swapper/900:34:4311
766999181cyclictest0-21swapper/900:25:1811
766899180cyclictest0-21swapper/820:53:4210
7666991816cyclictest20223-21qemu-kvm20:33:598
7656991816cyclictest9126-21snmp_rack3slot919:51:494
7656991816cyclictest7042-21perl23:25:154
7656991816cyclictest2305-21snmpd21:28:574
7656991816cyclictest2305-21snmpd00:26:434
7656991816cyclictest14388-21df_inode20:00:144
7643991815cyclictest0-21swapper/022:10:280
7674991716cyclictest0-21swapper/1021:00:232
767499170cyclictest831ksoftirqd/1023:30:152
767499170cyclictest831ksoftirqd/1023:00:282
767499170cyclictest831ksoftirqd/1020:45:132
767499170cyclictest831ksoftirqd/1000:05:212
767499170cyclictest831ksoftirqd/1000:00:332
767499170cyclictest811rcuc/1020:10:172
767499170cyclictest80142sleep1019:50:202
767499170cyclictest319642sleep1023:20:082
767499170cyclictest316512sleep1021:08:032
767499170cyclictest31312sleep1020:30:112
767499170cyclictest313062sleep1020:25:002
767499170cyclictest3055050irq/54-eth0-tx-00:25:042
767499170cyclictest3054950irq/53-eth0-rx-23:35:212
767499170cyclictest3054950irq/53-eth0-rx-22:10:162
767499170cyclictest3054950irq/53-eth0-rx-22:05:212
767499170cyclictest3054950irq/53-eth0-rx-21:45:502
767499170cyclictest3054950irq/53-eth0-rx-21:30:012
767499170cyclictest3054950irq/53-eth0-rx-20:55:292
767499170cyclictest3054950irq/53-eth0-rx-20:25:192
767499170cyclictest3054950irq/53-eth0-rx-20:15:052
767499170cyclictest3054950irq/53-eth0-rx-19:40:042
767499170cyclictest3054950irq/53-eth0-rx-19:10:242
767499170cyclictest3054950irq/53-eth0-rx-00:15:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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