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2025-11-18 - 20:27
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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 Nov 18, 2025 12:46:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22907211297sleep40-21swapper/407:05:366
23052210894sleep100-21swapper/1007:07:312
23026210793sleep10-21swapper/107:07:101
122501040irq/42-ahci0-21swapper/807:05:1910
3066350990irq/52-eth0-rx-0-21swapper/207:09:244
12250970irq/42-ahci0-21swapper/307:07:585
3066350920irq/52-eth0-rx-0-21swapper/507:06:027
2304028573sleep110-21swapper/1107:07:203
2324928479sleep70-21swapper/707:09:289
182050720irq/55-eth1-rx-0-21swapper/907:08:1211
2307726253sleep60-21swapper/607:07:518
2305525955sleep00-21swapper/007:07:330
23432994214cyclictest0-21swapper/1107:30:133
23390993617cyclictest0-21swapper/007:14:410
2339099310cyclictest0-21swapper/010:11:460
23432992914cyclictest0-21swapper/1107:29:583
2343299210cyclictest0-21swapper/1108:09:533
23410992120cyclictest12250irq/42-ahci10:12:035
23432992018cyclictest0-21swapper/1109:27:313
2343299190cyclictest12802sleep1110:18:053
23430991918cyclictest12250irq/42-ahci10:12:0111
23430991816cyclictest15156-21taskset08:25:0211
2343099181cyclictest0-21swapper/908:30:2911
23429991816cyclictest9393-21snmp_rack3slot911:57:1410
23429991816cyclictest7271-21snmp_easybox.os09:40:2610
23429991816cyclictest6120-21snmp_rack3slot912:36:5310
23429991816cyclictest31439-21perl09:30:1710
23429991816cyclictest30426-21snmp_rack3slot910:57:0110
23429991816cyclictest28882-21snmp_easybox.os07:15:1610
23429991816cyclictest28793-21diskstats11:40:1510
23429991816cyclictest27860-21perl09:25:1710
23429991816cyclictest26779-21snmp_rack3slot910:51:5010
23429991816cyclictest26286-21snmp_rack3slot910:06:3910
23429991816cyclictest2588-21perl09:35:1810
23429991816cyclictest25406-21perl11:35:1610
23429991816cyclictest24745-21snmp_rack3slot907:50:3610
23429991816cyclictest24119-21perl09:20:1610
23429991816cyclictest2382-21snmp_rack3slot912:31:1710
23429991816cyclictest23638-21snmp_rack3slot908:35:1610
23429991816cyclictest22100-21users09:15:3710
23429991816cyclictest19676-21snmp_rack3slot908:30:1410
23429991816cyclictest18410-21memory10:40:2510
23429991816cyclictest16236-21snmp_rack3slot911:21:2610
23429991816cyclictest16236-21snmp_rack3slot911:21:2610
23429991816cyclictest16034-21diskstats08:25:1710
23429991816cyclictest14890-21snmp_rack3slot909:07:1510
23429991816cyclictest14220-21snmp_rack3slot910:35:1710
23429991816cyclictest11227-21snmp_rack3slot909:01:5010
23429991816cyclictest11221-21perl12:00:1710
23429991816cyclictest10190-21df_inode10:30:1410
23405991816cyclictest2406-21snmpd08:06:154
2343299170cyclictest0-21swapper/1108:10:013
2343099170cyclictest0-21swapper/911:32:5911
2343099170cyclictest0-21swapper/908:15:1611
2343099170cyclictest0-21swapper/907:40:1411
23429991715cyclictest8246-21df_inode07:30:1310
23429991715cyclictest6154-21snmp_rack3slot910:25:1310
23429991715cyclictest5449-21perl08:10:1710
23429991715cyclictest4289-21memory11:05:2410
23429991715cyclictest32022-21snmp_rack3slot910:15:1710
23429991715cyclictest30398-21snmp_easybox.os12:25:2510
23429991715cyclictest27024-21munin-run07:15:0010
23429991715cyclictest2673-21snmp_rack3slot910:20:1310
23429991715cyclictest26107-21snmp_easybox.os08:40:1310
23429991715cyclictest25856-21perl12:20:1710
23429991715cyclictest23058-21ntp_states12:15:2510
23429991715cyclictest22656-21snmp_rack3slot910:01:5110
23429991715cyclictest19544-21perl07:45:1410
23429991715cyclictest16019-21snmp_rack3slot907:40:1410
23429991715cyclictest1589-21snmp_rack3slot911:01:0210
23429991715cyclictest12390-21snmp_rack3slot908:20:1410
23429991715cyclictest11579-21users09:45:3210
23417991716cyclictest11029-21python09:45:297
23417991715cyclictest3580-21qemu-kvm08:32:417
2341799171cyclictest0-21swapper/508:15:257
23405991715cyclictest2406-21snmpd12:14:164
23390991716cyclictest12250irq/42-ahci08:26:030
2343099162cyclictest0-21swapper/910:00:1611
23430991615cyclictest0-21swapper/910:57:4011
23430991615cyclictest0-21swapper/908:50:1411
23430991614cyclictest14625-21taskset08:24:5011
23429991614cyclictest8938-21snmp_rack3slot911:11:0010
23429991614cyclictest8938-21snmp_rack3slot911:11:0010
23429991614cyclictest4972-21snmp_rack3slot907:25:1610
23429991614cyclictest26696-21perl07:55:1510
23429991614cyclictest2062-21iostat08:05:2010
23429991614cyclictest18615-21iostat_ios11:25:2110
23429991614cyclictest17691-21iostat_ios09:55:1810
23429991614cyclictest15311-21snmp_rack3slot909:51:2410
23429991614cyclictest1372-21snmp_rack3slot907:20:1410
23429991614cyclictest12620-21snmp_rack3slot911:16:3710
23421991614cyclictest26446-21qemu-kvm10:25:278
23417991614cyclictest3580-21qemu-kvm08:45:547
2341099161cyclictest0-21swapper/310:20:135
2341099160cyclictest0-21swapper/308:45:225
23405991614cyclictest2406-21snmpd10:38:464
23432991514cyclictest12250irq/42-ahci08:20:063
23432991514cyclictest0-21swapper/1107:10:403
23430991514cyclictest645-21md1_raid109:03:1311
23430991514cyclictest0-21swapper/911:10:1211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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