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2025-06-10 - 06:22
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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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Tue Jun 10, 2025 00:45:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3254099273,14cyclictest7612-21apt-config20:20:012
32539992724,2cyclictest16292-21grep21:30:151
3254099230,18cyclictest0-21swapper/219:30:012
32539992313,0cyclictest0-21swapper/122:30:171
3253899233,3cyclictest111rcu_preempt22:13:470
3253999220,4cyclictest0-21swapper/123:00:251
32538992222,0cyclictest9-21ksoftirqd/020:04:240
32540992114,6cyclictest0-21swapper/221:56:502
3253999210,20cyclictest0-21swapper/122:19:071
3253899213,15cyclictest111rcu_preempt19:30:160
32540992018,1cyclictest0-21swapper/200:10:002
32540992017,2cyclictest32080-21ntp_kernel_pll_21:00:192
3253999203,16cyclictest23990-21fschecks_time22:40:181
32539992014,3cyclictest0-21swapper/119:36:251
3253899204,15cyclictest0-21swapper/022:28:040
32538992019,1cyclictest9-21ksoftirqd/019:21:570
3254099194,1cyclictest0-21swapper/221:38:242
3254099191,2cyclictest31093-21perf22:55:002
3253999192,1cyclictest0-21swapper/123:25:171
3253999192,16cyclictest0-21swapper/119:54:111
32539991917,1cyclictest0-21swapper/120:29:271
32539991916,2cyclictest30508-21cat21:00:011
3253999191,15cyclictest23979-21cat21:45:011
3253999190,18cyclictest0-21swapper/122:50:161
3253999190,16cyclictest7905-21awk19:20:221
3253899193,15cyclictest20616-21timerandwakeup23:30:260
3253899191,1cyclictest9-21ksoftirqd/000:03:180
3253899190,2cyclictest19057-21python320:40:000
3254099183,1cyclictest0-21swapper/220:12:152
3254099182,15cyclictest0-21swapper/223:44:472
3254099182,15cyclictest0-21swapper/222:46:392
32540991816,1cyclictest28-21ksoftirqd/200:38:572
32540991815,2cyclictest4776-21lxd21:20:542
32540991814,3cyclictest4534-21H212:26:332
3254099181,15cyclictest4538-21H212:26:332
3254099180,17cyclictest0-21swapper/219:50:282
3253999183,1cyclictest0-21swapper/123:06:251
3253999183,1cyclictest0-21swapper/120:37:211
3253999182,2cyclictest24623-21grep00:35:191
3253999182,15cyclictest26501-21expr22:45:191
3253999182,15cyclictest13644-21expr22:20:201
32539991816,1cyclictest31850irq/133-nvme0q220:15:011
32539991816,1cyclictest1086-21snmpd20:09:551
32539991816,1cyclictest0-21swapper/123:35:561
32539991816,1cyclictest0-21swapper/119:26:571
32539991816,1cyclictest0-21swapper/119:13:101
32539991816,1cyclictest0-21swapper/100:25:161
32539991815,2cyclictest970-21dbus-daemon19:55:221
32539991815,2cyclictest5574-21expr20:15:151
32539991815,2cyclictest1474-21cstates21:05:151
32539991815,1cyclictest0-21swapper/100:02:551
32539991814,3cyclictest8025-21cut23:10:151
32539991814,3cyclictest0-21swapper/123:16:341
32539991814,3cyclictest0-21swapper/120:45:171
32539991814,2cyclictest20044-21grep23:30:231
3253999181,2cyclictest31250-21date20:05:021
3253999181,2cyclictest28670-21timerwakeupswit21:50:231
3253999181,1cyclictest0-21swapper/121:45:231
3253999181,16cyclictest22306-21sed20:45:021
3253999181,16cyclictest22306-21sed20:45:011
3253999180,3cyclictest4538-21H212:26:331
3253999180,3cyclictest0-21swapper/122:55:191
3253999180,17cyclictest0-21swapper/121:25:131
3253999180,14cyclictest0-21swapper/123:55:141
3253899182,15cyclictest9-21ksoftirqd/020:25:190
32538991816,1cyclictest9-21ksoftirqd/023:15:230
32538991816,1cyclictest32715-21nfsd420:05:220
32538991816,1cyclictest101rcuc/022:00:480
32538991816,1cyclictest0-21swapper/022:10:010
32538991815,2cyclictest0-21swapper/021:40:060
3253899181,16cyclictest4500-21VM12:26:330
3253899180,3cyclictest9154-21sshd00:09:360
3253899180,3cyclictest5695-21nfsd421:10:210
3253899180,1cyclictest0-21swapper/019:58:260
32540991715,1cyclictest0-21swapper/223:00:152
32540991714,2cyclictest8028-21latency21:15:212
32540991714,2cyclictest4534-21H212:26:332
32540991714,2cyclictest379-21expr23:55:132
32540991714,2cyclictest3692-21master22:55:132
32540991714,2cyclictest30108-21snapd23:18:572
32540991714,2cyclictest27536-21lxd23:10:542
32540991714,2cyclictest27420-21nvmesmart_nvme019:55:212
32540991714,2cyclictest26438-21nfsd420:50:202
32540991714,2cyclictest23127-21systemctl23:35:222
32540991714,2cyclictest21673-21expr21:40:142
32540991714,2cyclictest20763-21fschecks_count19:45:132
32540991714,2cyclictest19285-21grep00:25:192
32540991714,2cyclictest18695-21awk19:40:182
32540991714,2cyclictest1411-21lxd20:58:542
32540991714,2cyclictest13413-21uname22:20:192
3254099171,1cyclictest0-21swapper/221:05:232
3254099171,15cyclictest4523-21H212:26:332
3254099171,15cyclictest0-21swapper/221:10:172
3254099170,2cyclictest4593-21H212:26:332
3254099170,2cyclictest24191-21switchtime20:45:262
3254099170,2cyclictest1845-21systemd-journal20:39:222
3254099170,2cyclictest14831-21cat19:35:192
3254099170,2cyclictest14646-21sort21:25:212
3254099170,2cyclictest12805-21cat19:30:182
3254099170,16cyclictest9862-21tr00:10:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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