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2025-11-18 - 06:56
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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 00:46:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501140irq/42-ahci0-21swapper/219:09:194
17635210896sleep90-21swapper/919:07:3311
17598210894sleep30-21swapper/319:07:035
17494210592sleep70-21swapper/719:05:439
3066350970irq/52-eth0-rx-0-21swapper/419:05:236
3066350930irq/52-eth0-rx-0-21swapper/119:05:191
3066350920irq/52-eth0-rx-0-21swapper/1119:06:153
1784928280sleep80-21swapper/819:09:4510
1763128272sleep60-21swapper/619:07:308
13450750irq/18-ehci_hcd0-21swapper/519:05:287
1741026253sleep100-21swapper/1019:05:342
1470226055sleep00-21swapper/019:05:120
17971993517cyclictest0-21swapper/022:22:440
18013992726cyclictest7104-21kworker/11:121:14:023
1798499193cyclictest0-21swapper/323:55:265
1798499193cyclictest0-21swapper/323:20:275
1798499193cyclictest0-21swapper/323:00:025
1798499193cyclictest0-21swapper/322:15:205
1798499193cyclictest0-21swapper/322:05:185
1798499193cyclictest0-21swapper/321:56:525
1798499193cyclictest0-21swapper/320:00:305
1798499193cyclictest0-21swapper/319:55:265
1798499193cyclictest0-21swapper/319:50:325
1798499193cyclictest0-21swapper/300:15:375
1801299181cyclictest3066350irq/52-eth0-rx-21:30:252
1801299181cyclictest124050irq/18-i801_smb20:50:292
1801299181cyclictest12250irq/42-ahci21:08:122
1801299180cyclictest12250irq/42-ahci22:08:282
1801199181cyclictest0-21swapper/922:30:2411
18010991816cyclictest4410-21snmp_rack3slot921:45:1510
18010991816cyclictest330-21perl20:55:1910
18010991816cyclictest3208-21snmp_rack3slot923:55:2510
18010991816cyclictest31568-21snmp_rack3slot923:05:2910
18010991816cyclictest31568-21snmp_rack3slot923:05:2810
18010991816cyclictest3145-21snmp_rack3slot919:30:1610
18010991816cyclictest31193-21snmp_easybox.os20:10:1310
18010991816cyclictest31193-21snmp_easybox.os20:10:1310
18010991816cyclictest30684-21snmp_easybox.os19:25:1310
18010991816cyclictest29863-21snmp_rack3slot922:20:1410
18010991816cyclictest29552-21perl21:35:1710
18010991816cyclictest27970-21snmp_easybox.os20:50:1310
18010991816cyclictest27347-21iostat_ios23:00:2010
18010991816cyclictest26438-21iostat_ios21:30:1910
18010991816cyclictest25328-21snmp_rack3slot923:41:0410
18010991816cyclictest22123-21snmp_rack3slot900:21:2510
18010991816cyclictest18509-21snmp_rack3slot900:16:3710
18010991816cyclictest13179-21snmp_easybox.os22:40:2810
1798499183cyclictest0-21swapper/320:51:285
1798499182cyclictest0-21swapper/323:25:375
1798499182cyclictest0-21swapper/323:06:305
1798499182cyclictest0-21swapper/323:06:305
1798499182cyclictest0-21swapper/319:20:235
1798499182cyclictest0-21swapper/300:28:145
17971991817cyclictest2691-21runrttasks20:23:190
17971991817cyclictest2691-21runrttasks20:23:190
1797199180cyclictest0-21swapper/019:13:530
18012991716cyclictest32632-1kworker/10:2H19:35:402
18012991716cyclictest0-21swapper/1020:08:072
1801299170cyclictest89682sleep1020:21:302
1801299170cyclictest89682sleep1020:21:302
1801299170cyclictest78152sleep1000:04:432
1801299170cyclictest72792sleep1023:17:492
1801299170cyclictest68852chrt22:33:222
1801299170cyclictest6652chrt00:37:472
1801299170cyclictest61972sleep1021:45:512
1801299170cyclictest59022sleep1021:03:102
1801299170cyclictest53002sleep1020:16:062
1801299170cyclictest50652chrt19:34:492
1801299170cyclictest34852sleep1023:10:382
1801299170cyclictest320242sleep1022:24:072
1801299170cyclictest31062sleep1022:26:202
1801299170cyclictest3066350irq/52-eth0-rx-22:58:132
1801299170cyclictest306482sleep1023:50:172
1801299170cyclictest300502sleep1019:23:362
1801299170cyclictest295492sleep1000:33:342
1801299170cyclictest287502chrt23:03:002
1801299170cyclictest283622sleep1022:18:552
1801299170cyclictest274982sleep1023:45:162
1801299170cyclictest271292sleep1020:45:572
1801299170cyclictest268242chrt20:03:042
1801299170cyclictest253582sleep1023:41:292
1801299170cyclictest25282sleep1021:40:512
1801299170cyclictest245342sleep1022:11:182
1801299170cyclictest241052sleep1021:27:142
1801299170cyclictest230242sleep1019:56:272
1801299170cyclictest220532sleep1000:20:342
1801299170cyclictest218582chrt23:38:162
1801299170cyclictest215762sleep1022:54:592
1801299170cyclictest20992sleep1020:57:352
1801299170cyclictest204042sleep1021:21:252
1801299170cyclictest200432sleep1020:38:322
1801299170cyclictest193942sleep1019:51:272
1801299170cyclictest184192sleep1000:15:322
1801299170cyclictest176282chrt22:45:582
1801299170cyclictest176282chrt22:45:582
1801299170cyclictest174332chrt22:04:422
1801299170cyclictest167502chrt21:16:252
1801299170cyclictest16022chrt20:11:282
1801299170cyclictest16022chrt20:11:282
1801299170cyclictest157182sleep1019:46:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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