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2025-12-03 - 07:32
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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 Wed Dec 03, 2025 00:46:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147472112106sleep100-21swapper/1019:09:162
13051210998sleep90-21swapper/919:05:2711
122501080irq/42-ahci0-21swapper/119:09:081
14598210794sleep30-21swapper/319:07:575
14297210692sleep00-21swapper/019:05:540
12250970irq/42-ahci0-21swapper/219:09:074
3066350950irq/52-eth0-rx-0-21swapper/819:09:3310
1452728778sleep40-21swapper/419:06:586
3066350680irq/52-eth0-rx-0-21swapper/519:05:597
1466626754sleep60-21swapper/619:08:118
1445626653sleep110-21swapper/1119:06:043
12250660irq/42-ahci0-21swapper/719:08:349
1495399192cyclictest0-21swapper/923:35:1611
1495499181cyclictest4792sleep1023:12:562
1495499181cyclictest12250irq/42-ahci22:40:422
1495499181cyclictest0-21swapper/1021:36:192
1495399182cyclictest0-21swapper/923:05:1511
1495399181cyclictest0-21swapper/922:45:1411
1495399181cyclictest0-21swapper/900:20:1611
14949991816cyclictest9787-21diskstats00:10:1210
14949991816cyclictest9216-21snmp_easybox.os21:10:2410
14949991816cyclictest7540-21snmp_rack3slot920:25:1510
14949991816cyclictest5519-21snmp_rack3slot922:35:1810
14949991816cyclictest5363-21snmp_easybox.os00:05:1310
14949991816cyclictest4135-21snmp_rack3slot921:50:1410
14949991816cyclictest4051-21snmp_rack3slot923:15:3610
14949991816cyclictest32405-21snmp_easybox.os23:55:2510
14949991816cyclictest32027-21df19:30:1410
14949991816cyclictest3166-21snmp_rack3slot919:35:1510
14949991816cyclictest29990-21snmp_rack3slot900:36:5010
14949991816cyclictest28727-21ntp_states23:50:2510
14949991816cyclictest28171-21users21:35:3110
14949991816cyclictest25567-21snmp_rack3slot923:01:2610
14949991816cyclictest23238-21snmp_rack3slot923:45:1210
14949991816cyclictest23238-21snmp_rack3slot923:45:1210
14949991816cyclictest22624-21snmp_rack3slot921:30:1410
14949991816cyclictest22624-21snmp_rack3slot921:30:1410
14949991816cyclictest22340-21iostat_ios20:00:2110
14949991816cyclictest21635-21memory00:25:2310
14949991816cyclictest19320-21perl21:25:1610
14949991816cyclictest1848-21irqstats21:45:2110
14949991816cyclictest18212-21snmp_rack3slot922:50:4910
14949991816cyclictest16941-21snmp_easybox.os22:05:2410
14949991816cyclictest12593-21df_inode22:45:1310
14949991816cyclictest11261-21snmp_easybox.os22:00:1110
14954991716cyclictest9403-21python21:10:282
14954991716cyclictest0-21swapper/1023:45:582
14954991716cyclictest0-21swapper/1023:45:572
1495499171cyclictest590-21snmp_rack3slot920:15:172
1495499170cyclictest96222sleep1020:27:362
1495499170cyclictest81002sleep1000:05:492
1495499170cyclictest72692sleep1022:35:392
1495499170cyclictest69802sleep1021:53:342
1495499170cyclictest59232sleep1020:21:482
1495499170cyclictest49252sleep1019:35:422
1495499170cyclictest48952sleep1023:20:072
1495499170cyclictest326682sleep1021:45:102
1495499170cyclictest323422sleep1022:25:372
1495499170cyclictest309332sleep1020:10:582
1495499170cyclictest3066350irq/52-eth0-rx-23:30:282
1495499170cyclictest3066350irq/52-eth0-rx-21:40:332
1495499170cyclictest3066350irq/52-eth0-rx-20:35:262
1495499170cyclictest3066350irq/52-eth0-rx-00:35:222
1495499170cyclictest3066350irq/52-eth0-rx-00:00:302
1495499170cyclictest3066350irq/52-eth0-rx-00:00:302
1495499170cyclictest297432sleep1023:53:482
1495499170cyclictest278412sleep1020:52:392
1495499170cyclictest271982sleep1020:05:352
1495499170cyclictest269722sleep1019:23:292
1495499170cyclictest26382sleep1021:01:042
1495499170cyclictest256482sleep1023:02:292
1495499170cyclictest251692sleep1022:17:132
1495499170cyclictest241412sleep1021:30:322
1495499170cyclictest241412sleep1021:30:312
1495499170cyclictest241132chrt20:46:392
1495499170cyclictest238292sleep1020:04:092
1495499170cyclictest223922sleep1023:42:472
1495499170cyclictest209662sleep1021:26:192
1495499170cyclictest205462chrt20:42:372
1495499170cyclictest201772sleep1019:59:212
1495499170cyclictest191352chrt00:22:272
1495499170cyclictest186192sleep1023:35:582
1495499170cyclictest184622sleep1022:54:172
1495499170cyclictest177912sleep1022:06:372
1495499170cyclictest16902sleep1022:30:152
1495499170cyclictest153812sleep1000:15:502
1495499170cyclictest147672sleep1022:48:402
1495499170cyclictest136282sleep1021:15:422
1495499170cyclictest131322sleep1020:30:492
1495499170cyclictest126382chrt19:46:072
1495499170cyclictest12250irq/42-ahci22:58:132
1495499170cyclictest12250irq/42-ahci21:24:412
1495499170cyclictest12250irq/42-ahci21:08:372
1495499170cyclictest12250irq/42-ahci19:17:512
1495499170cyclictest12250irq/42-ahci00:30:242
1495499170cyclictest117312sleep1000:10:492
1495399170cyclictest0-21swapper/923:40:2911
1495399170cyclictest0-21swapper/919:16:2711
1495399170cyclictest0-21swapper/900:30:1611
14949991715cyclictest9385-21diskstats23:25:1310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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