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2026-09-03 - 04:50
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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 Thu Sep 03, 2026 00:46:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501130irq/42-ahci0-21swapper/119:09:071
30549501120irq/53-eth0-rx-0-21swapper/319:09:265
14110210491sleep50-21swapper/519:06:187
14252210290sleep40-21swapper/419:08:056
3054950950irq/53-eth0-rx-0-21swapper/219:08:374
3054950920irq/53-eth0-rx-0-21swapper/819:08:1910
3054950920irq/53-eth0-rx-0-21swapper/1019:06:072
1434329281sleep90-21swapper/919:08:3411
3054950900irq/53-eth0-rx-0-21swapper/719:05:459
3054950720irq/53-eth0-rx-0-21swapper/1119:07:473
1430926654sleep00-21swapper/019:08:130
1409726556sleep60-21swapper/619:06:078
14553993837cyclictest0-21swapper/021:28:060
14553993413cyclictest0-21swapper/022:20:440
1455399320cyclictest0-21swapper/019:11:070
14602993130cyclictest0-21swapper/1122:09:233
3055050280irq/54-eth0-tx-0-21swapper/921:28:0411
3054950280irq/53-eth0-rx-0-21swapper/821:28:1410
3054950280irq/53-eth0-rx-0-21swapper/521:28:077
3054950280irq/53-eth0-rx-0-21swapper/221:28:004
3054950280irq/53-eth0-rx-0-21swapper/1121:28:073
3054950280irq/53-eth0-rx-0-21swapper/121:28:101
14570992423cyclictest3054950irq/53-eth0-rx-19:11:034
14570992416cyclictest15111-21snmp_rack3slot920:35:154
14553992412cyclictest0-21swapper/019:21:110
1455399220cyclictest0-21swapper/021:17:570
14553992120cyclictest0-21swapper/020:13:200
1455399212cyclictest0-21swapper/020:28:020
1460099192cyclictest0-21swapper/921:12:3511
1460099192cyclictest0-21swapper/919:15:1311
1455399191cyclictest0-21swapper/019:47:340
1455399190cyclictest0-21swapper/023:15:390
1455399190cyclictest0-21swapper/022:10:270
1455399190cyclictest0-21swapper/021:00:130
1455399190cyclictest0-21swapper/000:36:260
1460099181cyclictest0-21swapper/923:56:5311
1460099181cyclictest0-21swapper/923:54:4511
1460099181cyclictest0-21swapper/923:00:3811
1460099181cyclictest0-21swapper/922:55:4711
1460099181cyclictest0-21swapper/922:55:4711
1460099181cyclictest0-21swapper/922:25:1611
1460099181cyclictest0-21swapper/922:15:1811
1460099181cyclictest0-21swapper/921:38:3011
1460099181cyclictest0-21swapper/900:14:4211
14594991816cyclictest14304-21qemu-kvm19:38:178
14594991816cyclictest14304-21qemu-kvm19:20:138
1455399182cyclictest0-21swapper/021:10:000
14553991812cyclictest301462sleep019:26:390
14553991811cyclictest229412chrt19:17:490
1455399180cyclictest0-21swapper/020:30:210
1455399180cyclictest0-21swapper/000:05:260
1455399180cyclictest0-21swapper/000:01:200
1460199170cyclictest0-21swapper/1022:40:162
1460199170cyclictest0-21swapper/1022:36:432
1460199170cyclictest0-21swapper/1022:36:432
14600991716cyclictest0-21swapper/923:15:2011
14600991716cyclictest0-21swapper/922:08:3511
14600991716cyclictest0-21swapper/920:25:2411
14600991716cyclictest0-21swapper/900:32:1811
14600991716cyclictest0-21swapper/900:01:3211
14600991715cyclictest22295-21ssh22:39:4511
14600991715cyclictest22295-21ssh22:39:4411
1460099170cyclictest8626-21fschecks_count23:45:1311
1460099170cyclictest3054950irq/53-eth0-rx-00:21:0711
1460099170cyclictest0-21swapper/923:11:1011
1460099170cyclictest0-21swapper/923:11:1011
1460099170cyclictest0-21swapper/923:08:3711
1460099170cyclictest0-21swapper/922:48:5011
1460099170cyclictest0-21swapper/922:48:5011
1460099170cyclictest0-21swapper/922:41:0511
1460099170cyclictest0-21swapper/921:18:1011
1460099170cyclictest0-21swapper/900:35:5111
14594991716cyclictest6341-21qemu-kvm21:33:488
14594991716cyclictest6341-21qemu-kvm21:21:038
14594991716cyclictest6341-21qemu-kvm21:08:408
14594991716cyclictest6340-21qemu-kvm21:18:268
14594991715cyclictest14305-21qemu-kvm19:25:128
14589991715cyclictest1577-21snmp_rack3slot900:30:247
1457799178cyclictest0-21swapper/322:25:115
14570991715cyclictest5514-21snmp_easybox.os21:05:244
14570991715cyclictest30809-21snmp_easybox.os23:10:304
14570991715cyclictest30809-21snmp_easybox.os23:10:304
14570991715cyclictest2305-21snmpd21:39:324
14570991715cyclictest2305-21snmpd21:00:014
14570991715cyclictest2305-21snmpd20:11:314
14570991715cyclictest12380-21snmp_rack3slot923:21:514
1455399170cyclictest0-21swapper/023:40:430
1455399170cyclictest0-21swapper/023:25:410
1455399170cyclictest0-21swapper/019:35:130
14602991614cyclictest0-21swapper/1119:21:293
1460199168cyclictest0-21swapper/1022:15:132
1460199160cyclictest0-21swapper/1022:22:182
1460199160cyclictest0-21swapper/1022:07:292
1460199160cyclictest0-21swapper/1021:31:382
14600991615cyclictest15922-21forks19:10:1311
14600991615cyclictest13085-21kworker/9:000:26:2311
14600991615cyclictest0-21swapper/923:36:0211
14600991615cyclictest0-21swapper/923:22:5011
14600991615cyclictest0-21swapper/922:51:1211
14600991615cyclictest0-21swapper/922:23:5311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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