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2026-08-28 - 23:50
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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 Fri Aug 28, 2026 12:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30549501140irq/53-eth0-rx-0-21swapper/107:09:551
30549501030irq/53-eth0-rx-0-21swapper/307:05:255
4189210190sleep50-21swapper/507:07:357
3054950990irq/53-eth0-rx-0-21swapper/707:06:099
3054950980irq/53-eth0-rx-0-21swapper/807:09:4510
3054950980irq/53-eth0-rx-0-21swapper/407:05:246
3054950970irq/53-eth0-rx-0-21swapper/207:05:164
171450950irq/56-eth1-rx-0-21swapper/907:09:4711
438829186sleep100-21swapper/1007:09:282
3054950880irq/53-eth0-rx-0-21swapper/1107:07:413
419725955sleep00-21swapper/007:07:410
414525955sleep60-21swapper/607:07:008
4583993617cyclictest0-21swapper/1110:28:003
4540993314cyclictest0-21swapper/010:26:090
4540993214cyclictest15863-1kworker/0:2H07:20:070
4540993213cyclictest0-21swapper/007:19:540
4583992321cyclictest0-21swapper/1108:21:273
458399220cyclictest0-21swapper/1110:20:463
4583992018cyclictest0-21swapper/1110:08:243
4583992018cyclictest0-21swapper/1110:08:233
4574992018cyclictest19561-21switchtime07:25:2611
4574992018cyclictest18467-21munin-node08:55:1111
4540992018cyclictest0-21swapper/010:08:240
4540992018cyclictest0-21swapper/010:08:240
457999192cyclictest3054950irq/53-eth0-rx-11:38:502
457999192cyclictest3054950irq/53-eth0-rx-11:31:552
457999192cyclictest3054950irq/53-eth0-rx-10:45:062
457999192cyclictest3054950irq/53-eth0-rx-10:16:062
457999192cyclictest3054950irq/53-eth0-rx-10:12:392
457999192cyclictest3054950irq/53-eth0-rx-10:12:392
457999192cyclictest3054950irq/53-eth0-rx-09:39:382
457999192cyclictest3054950irq/53-eth0-rx-09:32:212
457999192cyclictest3054950irq/53-eth0-rx-09:22:202
457499195cyclictest0-21swapper/907:15:0211
457499192cyclictest0-21swapper/911:09:4011
4540991916cyclictest0-21swapper/012:25:100
457999181cyclictest3055050irq/54-eth0-tx-12:21:032
457999181cyclictest3055050irq/54-eth0-tx-12:03:042
457999181cyclictest3055050irq/54-eth0-tx-11:45:232
457999181cyclictest3055050irq/54-eth0-tx-11:40:112
457999181cyclictest3054950irq/53-eth0-rx-12:15:012
457999181cyclictest3054950irq/53-eth0-rx-11:56:202
457999181cyclictest3054950irq/53-eth0-rx-11:51:222
457999181cyclictest3054950irq/53-eth0-rx-11:12:172
457999181cyclictest3054950irq/53-eth0-rx-11:02:032
457999181cyclictest3054950irq/53-eth0-rx-10:59:052
457999181cyclictest3054950irq/53-eth0-rx-10:53:062
457999181cyclictest3054950irq/53-eth0-rx-10:53:052
457999181cyclictest3054950irq/53-eth0-rx-10:43:402
457999181cyclictest3054950irq/53-eth0-rx-10:36:172
457999181cyclictest3054950irq/53-eth0-rx-10:34:542
457999181cyclictest3054950irq/53-eth0-rx-10:25:572
457999181cyclictest3054950irq/53-eth0-rx-10:21:412
457999181cyclictest3054950irq/53-eth0-rx-09:59:462
457999181cyclictest3054950irq/53-eth0-rx-09:54:512
457999181cyclictest3054950irq/53-eth0-rx-09:48:142
457999181cyclictest3054950irq/53-eth0-rx-09:40:472
457999181cyclictest3054950irq/53-eth0-rx-09:28:152
457999181cyclictest3054950irq/53-eth0-rx-09:18:242
457999181cyclictest243462chrt08:16:462
457999181cyclictest12250irq/42-ahci08:08:572
457999181cyclictest12250irq/42-ahci08:08:572
457999181cyclictest12250irq/42-ahci07:47:302
457499181cyclictest4395-21kworker/9:112:16:0811
457499181cyclictest3055050irq/54-eth0-tx-11:28:1911
457499181cyclictest3055050irq/54-eth0-tx-10:22:1511
457499181cyclictest18060-1kworker/9:1H07:22:4611
457499181cyclictest0-21swapper/911:56:3111
457499181cyclictest0-21swapper/911:45:3511
457499181cyclictest0-21swapper/911:42:3111
457499181cyclictest0-21swapper/911:35:4311
457499181cyclictest0-21swapper/911:19:0811
457499181cyclictest0-21swapper/910:05:0511
457499181cyclictest0-21swapper/910:05:0511
457499181cyclictest0-21swapper/910:02:2711
457499181cyclictest0-21swapper/909:43:3311
457499181cyclictest0-21swapper/907:37:3311
457499181cyclictest0-21swapper/907:37:3311
4571991816cyclictest28653-21qemu-kvm09:08:198
4579991716cyclictest0-21swapper/1012:25:192
4579991716cyclictest0-21swapper/1011:25:512
457999170cyclictest95742sleep1007:55:322
457999170cyclictest95742sleep1007:55:312
457999170cyclictest65422sleep1008:36:002
457999170cyclictest3372sleep1009:11:172
457999170cyclictest315512sleep1008:25:362
457999170cyclictest3055050irq/54-eth0-tx-11:05:222
457999170cyclictest3054950irq/53-eth0-rx-12:35:112
457999170cyclictest3054950irq/53-eth0-rx-12:30:322
457999170cyclictest3054950irq/53-eth0-rx-12:10:012
457999170cyclictest3054950irq/53-eth0-rx-12:05:092
457999170cyclictest3054950irq/53-eth0-rx-11:20:142
457999170cyclictest3054950irq/53-eth0-rx-11:15:302
457999170cyclictest3054950irq/53-eth0-rx-10:05:362
457999170cyclictest3054950irq/53-eth0-rx-10:05:362
457999170cyclictest3054950irq/53-eth0-rx-10:00:172
457999170cyclictest3054950irq/53-eth0-rx-08:40:492
457999170cyclictest3054950irq/53-eth0-rx-07:50:502
457999170cyclictest3054950irq/53-eth0-rx-07:36:542
457999170cyclictest3054950irq/53-eth0-rx-07:36:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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