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2025-12-09 - 08:30
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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 rack5slot2.osadl.org (updated Tue Dec 09, 2025 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176132200183,12sleep10-21swapper/119:07:151
178032186169,12sleep00-21swapper/019:09:440
174892183166,12sleep30-21swapper/319:05:413
177532123107,12sleep20-21swapper/219:09:052
99762460,1sleep09979-21ntp_kernel_pll_19:55:170
128522450,0sleep20-21swapper/222:14:242
322312130,0sleep30-21swapper/322:55:483
96062120,0sleep20-21swapper/200:39:402
191652110,0sleep20-21swapper/200:27:432
1801699103,2cyclictest12859-21hddtemp_smartct21:25:150
180169993,2cyclictest15209-21python20:05:210
180169992,2cyclictest3162-21sed21:20:190
180169992,2cyclictest24016-21perl00:30:160
180169992,2cyclictest12922-21sed20:00:210
180169991,2cyclictest29381-21perl00:00:140
22930280,0sleep10-21swapper/123:56:441
180169985,2cyclictest22175-21apt-get22:35:140
180169983,2cyclictest1667-21hddtemp_smartct00:35:150
180169982,4cyclictest29036-21cut20:35:130
180169982,3cyclictest7587-21ls00:05:200
180169982,3cyclictest31783-21cut20:40:130
180169982,3cyclictest20969-21sed20:20:010
180169982,3cyclictest19069-21users22:00:210
180169982,2cyclictest21247-21python22:50:220
180169982,2cyclictest13812-21diskmemload22:43:220
180169982,1cyclictest31888-21df23:45:130
180169975,2cyclictest24380-21apt-get21:15:140
180169975,2cyclictest21945-21apt-get21:30:130
180169975,2cyclictest1644-21apt-get23:30:120
180169975,1cyclictest14409-21ssh21:10:150
180169974,2cyclictest13073-21apt-get00:25:010
180169973,4cyclictest5260-21perl22:10:160
180169973,3cyclictest25806-21ssh00:15:140
180169973,1cyclictest11505-21apt-get23:35:120
180169972,3cyclictest6097-21sed23:15:210
180169972,3cyclictest29234-21expr19:30:140
180169972,3cyclictest2040-21tune2fs19:40:150
180169972,3cyclictest14245-21apt23:20:120
180169972,3cyclictest13812-21diskmemload23:55:150
180169972,3cyclictest13812-21diskmemload21:40:420
180169972,2cyclictest9434-21diskstats21:00:150
180169972,2cyclictest7558-21grep23:00:130
180169972,2cyclictest7528-21sed20:55:200
180169972,2cyclictest7050-21wget21:55:120
180169972,2cyclictest31446-21tr19:35:120
180169972,2cyclictest29409-21ssh21:50:100
180169972,2cyclictest26862-21grep20:30:130
180169972,2cyclictest24166-21taskset23:25:130
180169972,2cyclictest23166-21uptime20:20:200
180169972,2cyclictest19921-21cstates21:45:150
180169972,2cyclictest19442-21ssh22:17:080
180169972,2cyclictest13812-21diskmemload22:57:270
180169972,2cyclictest13812-21diskmemload22:46:050
180169972,2cyclictest13812-21diskmemload22:25:020
180169972,2cyclictest13812-21diskmemload21:39:370
180169972,2cyclictest13812-21diskmemload00:13:170
180169972,2cyclictest12820-21ntpq21:05:180
180169972,1cyclictest4962-21awk00:20:190
180169971,3cyclictest22770-21seq23:40:180
180169971,2cyclictest24386-21apt-config22:20:010
180169971,2cyclictest19443-21ssh22:33:380
180169971,1cyclictest28975-21users22:05:210
180259961,4cyclictest0-21swapper/200:15:152
180169964,2cyclictest6262-21apt-get19:50:120
180169964,2cyclictest18674-21expr23:05:220
180169962,1cyclictest5585-21users20:50:200
180169962,1cyclictest5307-21sensors_temp19:45:200
180169962,1cyclictest26559-21ssh23:10:030
180169962,1cyclictest24356-21df19:20:130
180169962,1cyclictest24317-21df20:25:150
180169962,1cyclictest21878-21df_inode19:15:170
180169962,1cyclictest19633-21sensors_temp19:10:230
180169962,1cyclictest1803-21df_inode20:45:150
180169962,1cyclictest13812-21diskmemload23:50:120
180169961,3cyclictest17462-21pmu-power20:10:180
180309953,1cyclictest22219-21sh21:45:473
180309951,4cyclictest808-21snmpd22:53:033
180309951,0cyclictest56750irq/130-eth021:32:073
180309950,5cyclictest0-21swapper/323:40:133
180309950,5cyclictest0-21swapper/323:03:203
180309950,5cyclictest0-21swapper/322:37:183
180309950,5cyclictest0-21swapper/300:39:583
180309950,4cyclictest8080-21ssh22:11:213
180309950,3cyclictest0-21swapper/321:35:443
180309950,1cyclictest24580-21chrt19:20:153
180309950,0cyclictest0-21swapper/322:07:373
180309950,0cyclictest0-21swapper/321:43:543
180259953,2cyclictest20579-21kworker/2:023:16:052
180259950,5cyclictest0-21swapper/223:44:102
180259950,5cyclictest0-21swapper/223:30:032
180259950,5cyclictest0-21swapper/223:23:232
180259950,5cyclictest0-21swapper/222:50:382
180259950,5cyclictest0-21swapper/222:29:502
180259950,5cyclictest0-21swapper/221:55:122
180209952,1cyclictest0-21swapper/122:50:141
180209951,2cyclictest0-21swapper/121:45:131
180209951,2cyclictest0-21swapper/119:50:111
180209950,5cyclictest0-21swapper/100:34:021
180169954,1cyclictest26308-21apt-get19:25:110
21738240,0sleep10-21swapper/122:18:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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