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2025-11-16 - 05:24
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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 Nov 16, 2025 00:46:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25025210894sleep20-21swapper/219:07:014
24929210693sleep10-21swapper/119:05:471
24940210492sleep110-21swapper/1119:05:573
25075210086sleep90-21swapper/919:07:4311
3066350930irq/52-eth0-rx-0-21swapper/419:05:266
12250930irq/42-ahci0-21swapper/319:08:255
3066350880irq/52-eth0-rx-0-21swapper/519:05:397
12250830irq/42-ahci0-21swapper/819:09:2910
12250820irq/42-ahci0-21swapper/719:08:189
2517627970sleep100-21swapper/1019:08:202
2239726055sleep60-21swapper/619:05:178
2503725955sleep00-21swapper/019:07:110
2545299310cyclictest0-21swapper/1119:17:553
2545299249cyclictest127252chrt20:16:033
2545299234cyclictest5713-21chrt20:09:513
2541899237cyclictest12853-21chrt20:17:540
2545299210cyclictest0-21swapper/1122:13:103
2541899210cyclictest0-21swapper/019:17:520
2545299205cyclictest93022chrt20:14:043
25449991816cyclictest7018-21snmp_rack3slot919:25:2010
25449991816cyclictest5034-21snmp_rack3slot923:50:1210
25449991816cyclictest30921-21memory22:10:2210
25449991816cyclictest29623-21snmp_rack3slot921:25:1410
25449991816cyclictest29298-21perl20:40:1610
25449991816cyclictest26782-21snmp_rack3slot919:10:1810
25449991816cyclictest26710-21snmp_easybox.os00:20:1410
25449991816cyclictest21813-21snmp_easybox.os22:00:1410
25449991816cyclictest19648-21snmp_rack3slot922:40:1510
25449991816cyclictest16735-21hddtemp_smartct23:20:1710
25449991816cyclictest14156-21snmp_rack3slot920:20:1510
25449991816cyclictest11935-21snmp_rack3slot922:30:1410
25449991816cyclictest1062-21snmp_rack3slot921:30:1610
25449991816cyclictest10472-21perl19:30:1610
2545299170cyclictest0-21swapper/1122:26:383
25450991715cyclictest0-21swapper/919:42:4611
25449991716cyclictest6437-21snmp_rack3slot920:10:1410
25449991715cyclictest8555-21snmp_easybox.os23:55:1410
25449991715cyclictest8467-21df22:25:1410
25449991715cyclictest8139-21snmp_easybox.os23:10:1210
25449991715cyclictest5935-21snmp_rack3slot920:52:0410
25449991715cyclictest4777-21perl21:35:1510
25449991715cyclictest4777-21perl21:35:1410
25449991715cyclictest32387-21snmp_rack3slot922:56:2710
25449991715cyclictest30341-21df_inode19:15:1610
25449991715cyclictest28181-21users22:05:3410
25449991715cyclictest26826-21snmp_rack3slot919:51:3910
25449991715cyclictest25266-21snmp_rack3slot921:20:1310
25449991715cyclictest25266-21snmp_rack3slot921:20:1310
25449991715cyclictest22518-21perl21:15:1610
25449991715cyclictest21687-21diskstats20:30:1910
25449991715cyclictest21161-21diskstats19:45:1710
25449991715cyclictest20507-21perl00:10:1810
25449991715cyclictest18089-21munin-run22:40:0110
25449991715cyclictest17273-21snmp_rack3slot919:40:1510
25449991715cyclictest16671-21sensors_volt21:50:2810
25449991715cyclictest16671-21sensors_volt21:50:2710
25449991715cyclictest1165-21diskstats22:15:1510
25449991715cyclictest10755-21df_inode20:15:1610
2544799172cyclictest0-21swapper/622:29:568
2541899170cyclictest0-21swapper/022:13:060
25450991615cyclictest0-21swapper/900:15:1611
25449991615cyclictest9198-21snmp_easybox.os21:40:2710
25449991615cyclictest7307-21snmp_rack3slot923:06:0010
25449991615cyclictest15026-21snmp_rack3slot900:01:3810
25449991614cyclictest9522-21snmp_rack3slot920:56:2910
25449991614cyclictest879-21iostat20:45:2210
25449991614cyclictest728-21snmp_rack3slot900:26:2710
25449991614cyclictest5455-21snmp_rack3slot920:07:0310
25449991614cyclictest3376-21snmp_rack3slot919:20:1510
25449991614cyclictest20276-21fw_packets23:25:1910
25449991614cyclictest16574-21df00:05:1410
25444991615cyclictest7462-21python00:35:277
25444991615cyclictest5586-21qemu-kvm20:46:077
25444991615cyclictest30805-21cstates00:25:167
25444991614cyclictest5586-21qemu-kvm20:08:557
2541899160cyclictest31501-21chrt21:26:490
25452991513cyclictest3066350irq/52-eth0-rx-20:23:283
2545099153cyclictest761ksoftirqd/922:34:3111
2545099153cyclictest761ksoftirqd/921:34:5811
2545099153cyclictest761ksoftirqd/921:22:2911
2545099153cyclictest761ksoftirqd/921:22:2811
2545099153cyclictest761ksoftirqd/920:51:1811
2545099153cyclictest761ksoftirqd/920:28:0111
2545099153cyclictest761ksoftirqd/920:11:4111
2545099153cyclictest761ksoftirqd/919:36:5511
2545099153cyclictest761ksoftirqd/900:33:2311
2545099153cyclictest761ksoftirqd/900:29:1511
2545099153cyclictest0-21swapper/922:26:5011
2545099152cyclictest761ksoftirqd/923:54:3811
2545099152cyclictest761ksoftirqd/923:44:4111
2545099152cyclictest761ksoftirqd/921:29:5311
2545099152cyclictest761ksoftirqd/921:12:3411
2545099152cyclictest761ksoftirqd/921:07:0511
2545099152cyclictest761ksoftirqd/920:57:2211
2545099152cyclictest761ksoftirqd/920:33:4011
2545099152cyclictest761ksoftirqd/920:02:0311
2545099152cyclictest761ksoftirqd/919:33:3211
2545099152cyclictest761ksoftirqd/900:22:3011
2545099152cyclictest761ksoftirqd/900:14:3711
2545099152cyclictest761ksoftirqd/900:03:2111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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