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2026-09-20 - 14:15
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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 Sun Sep 20, 2026 12:46:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30549501090irq/53-eth0-rx-0-21swapper/107:08:201
13265210795sleep40-21swapper/407:07:196
13306210593sleep20-21swapper/207:07:524
9827210490sleep110-21swapper/1107:05:013
122501040irq/42-ahci0-21swapper/307:09:565
30549501000irq/53-eth0-rx-0-21swapper/507:06:327
12250950irq/42-ahci0-21swapper/707:08:379
3055050910irq/54-eth0-tx-0-21swapper/807:06:1510
3054950900irq/53-eth0-rx-0-21swapper/907:05:1911
1035228878sleep100-21swapper/1007:05:132
1323628173sleep60-21swapper/607:06:568
1314825853sleep00-21swapper/007:05:500
13645993029cyclictest3054950irq/53-eth0-rx-08:20:374
12250300irq/42-ahci0-21swapper/908:20:4811
13624992928cyclictest0-21swapper/008:20:360
1366799270cyclictest0-21swapper/1107:30:143
13664992726cyclictest12250irq/42-ahci08:20:4610
1363599260cyclictest0-21swapper/110:15:171
13657992221cyclictest3054950irq/53-eth0-rx-08:20:425
1362499200cyclictest0-21swapper/009:11:220
1366799194cyclictest0-21swapper/1109:23:193
1362499193cyclictest0-21swapper/009:16:300
1366799180cyclictest0-21swapper/1109:19:153
13665991816cyclictest12371-21taskset11:02:1911
1366599181cyclictest761ksoftirqd/912:10:2311
1366599181cyclictest761ksoftirqd/910:13:3611
1366599181cyclictest761ksoftirqd/910:06:0111
1366599181cyclictest761ksoftirqd/908:35:2511
1366599181cyclictest25611-21cat08:05:2611
1366599181cyclictest0-21swapper/912:27:1611
1366599181cyclictest0-21swapper/912:19:1011
1366599181cyclictest0-21swapper/912:06:3111
1366599181cyclictest0-21swapper/911:35:1911
1366599181cyclictest0-21swapper/911:30:2211
1366599181cyclictest0-21swapper/911:25:1211
1366599181cyclictest0-21swapper/911:23:2211
1366599181cyclictest0-21swapper/910:00:5311
1366599181cyclictest0-21swapper/909:25:2811
1366599181cyclictest0-21swapper/909:19:4411
1366599181cyclictest0-21swapper/907:39:0711
13661991816cyclictest5406-21qemu-kvm09:08:447
13661991816cyclictest14453-21snmp_easybox.os07:50:257
1366099180cyclictest0-21swapper/409:11:026
13645991816cyclictest21457-21snmp_rack3slot908:45:154
1363599180cyclictest0-21swapper/110:11:571
13665991716cyclictest0-21swapper/912:33:4611
13665991716cyclictest0-21swapper/911:49:1811
13665991716cyclictest0-21swapper/909:51:2411
13665991715cyclictest8722-21ssh09:39:3011
13665991715cyclictest6766-21ssh11:51:0311
13665991715cyclictest30491-21ssh11:17:4411
13665991715cyclictest19502-21unixbench_multi10:40:2711
13665991715cyclictest15458-21taskset10:38:5211
1366599171cyclictest0-21swapper/909:59:3311
1366599170cyclictest761ksoftirqd/909:45:2511
1366599170cyclictest761ksoftirqd/907:20:1411
1366599170cyclictest0-21swapper/912:03:4711
1366599170cyclictest0-21swapper/912:03:4611
1366599170cyclictest0-21swapper/911:12:3611
1366599170cyclictest0-21swapper/910:50:3111
1366599170cyclictest0-21swapper/909:32:0811
1366599170cyclictest0-21swapper/908:55:2911
1366599170cyclictest0-21swapper/908:25:2011
1366599170cyclictest0-21swapper/908:25:1911
1366499176cyclictest0-21swapper/811:20:0010
13662991715cyclictest26240-21qemu-kvm08:08:438
13645991715cyclictest8751-21unixbench_multi11:25:264
13645991715cyclictest26572-21snmp_rack3slot908:51:024
1362499171cyclictest0-21swapper/008:40:210
1362499171cyclictest0-21swapper/007:50:200
1362499171cyclictest0-21swapper/007:15:180
1362499171cyclictest0-21swapper/007:10:270
1362499170cyclictest17596-21taskset10:13:120
1366599164cyclictest0-21swapper/911:55:0211
1366599164cyclictest0-21swapper/911:55:0111
1366599163cyclictest0-21swapper/911:40:0211
13665991615cyclictest761ksoftirqd/910:20:0111
13665991615cyclictest761ksoftirqd/907:50:1411
13665991615cyclictest761ksoftirqd/907:45:1211
13665991615cyclictest6422-21ssh10:57:2511
13665991615cyclictest3054950irq/53-eth0-rx-12:37:0611
13665991615cyclictest0-21swapper/912:20:2511
13665991615cyclictest0-21swapper/911:09:4511
13665991615cyclictest0-21swapper/909:43:2611
13665991615cyclictest0-21swapper/909:05:0111
13665991615cyclictest0-21swapper/909:04:0211
13665991615cyclictest0-21swapper/907:40:2511
13665991614cyclictest31170-21fschecks_time07:30:1511
13665991614cyclictest25220-21ssh10:20:0911
1366599161cyclictest0-21swapper/909:20:2811
1366499165cyclictest0-21swapper/812:15:0110
1366499165cyclictest0-21swapper/812:05:0210
1366399165cyclictest0-21swapper/710:10:009
1366399165cyclictest0-21swapper/709:25:019
13661991614cyclictest6287-21snmp_rack3slot907:40:137
13661991614cyclictest13380-21qemu-kvm07:10:477
1366199160cyclictest0-21swapper/509:26:477
1366199160cyclictest0-21swapper/507:25:217
13657991615cyclictest7575-21proc_pri08:25:235
13657991615cyclictest7575-21proc_pri08:25:225
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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