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2026-09-08 - 09:00
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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 highest latencies:
System rackdslot0.osadl.org (updated Tue Sep 08, 2026 00:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2425399345,13cyclictest0-21swapper/219:55:192
24248992717,4cyclictest0-21swapper/122:30:141
2424499276,20cyclictest0-21swapper/020:05:190
24248992614,7cyclictest25484-21chrt23:55:331
24253992323,0cyclictest0-21swapper/222:50:202
2424899232,15cyclictest0-21swapper/122:21:021
2424899230,16cyclictest27247-21date23:02:331
2424899230,16cyclictest19001-21apt-config20:55:011
2425399220,18cyclictest0-21swapper/220:20:012
24248992214,7cyclictest8192-21nfsd421:30:211
24248992213,4cyclictest0-21swapper/123:46:381
24248992213,4cyclictest0-21swapper/123:46:381
2424899221,2cyclictest30111-21chrt21:12:111
2424899220,2cyclictest6714-21if_enp1s000:20:161
2424899220,2cyclictest28826-21python322:10:011
2424899220,21cyclictest32102-21awk21:15:191
2424899220,21cyclictest30239-21fschecks_time22:10:171
2424899220,21cyclictest292932sleep119:16:211
2424899220,17cyclictest2276-21fschecks_time20:25:151
2424899220,16cyclictest16270-21kernelversion23:40:171
2424899220,16cyclictest13444-21sed23:35:161
2425399213,11cyclictest4320-21munin-run20:30:012
24248992114,6cyclictest7936-21sed23:25:181
24248992114,6cyclictest3322-21expr00:15:131
24248992112,5cyclictest16426-21chrt22:44:371
2424899210,2cyclictest22105-21sed21:00:011
2424899210,20cyclictest0-21swapper/123:50:171
2424899210,1cyclictest118182chrt23:32:431
2424899210,1cyclictest0-21swapper/122:55:141
2424899210,1cyclictest0-21swapper/120:15:001
2424899210,1cyclictest0-21swapper/119:55:201
2424899210,19cyclictest25515-21expr21:05:161
2424899210,19cyclictest0-21swapper/122:35:171
2424899210,15cyclictest5791-21apache_accesses22:25:121
2424899210,15cyclictest18068-21apache_processe21:50:101
2424899210,15cyclictest14089-21apache_processe00:35:121
2424899210,15cyclictest0-21swapper/119:50:001
24244992114,6cyclictest19318-21sed22:50:000
2425399204,15cyclictest0-21swapper/219:35:162
24248992014,5cyclictest32150-21chrt19:22:461
24248992014,5cyclictest22418-21date20:05:011
24248992014,5cyclictest11359-21apache_processe00:30:141
24248992014,5cyclictest1003-21cut19:25:151
24248992014,5cyclictest0-21swapper/123:10:181
24248992014,5cyclictest0-21swapper/122:50:211
24248992014,5cyclictest0-21swapper/122:46:521
24248992014,5cyclictest0-21swapper/121:00:211
24248992014,5cyclictest0-21swapper/119:40:351
24248992013,6cyclictest31296-21expr20:20:131
24248992013,6cyclictest2579-21ntp_states23:15:191
24248992013,6cyclictest1145-21nfsd422:15:181
2424899200,2cyclictest9935-21nfsd400:25:181
2424899200,1cyclictest1079-21cups-browsed19:10:231
2424899200,1cyclictest0-21swapper/122:00:121
2424899200,1cyclictest0-21swapper/121:59:591
2424899200,1cyclictest0-21swapper/120:30:141
2424899200,1cyclictest0-21swapper/119:50:201
2424899200,19cyclictest4099-21H222:10:211
2424899200,19cyclictest0-21swapper/121:45:141
2424899200,19cyclictest0-21swapper/121:25:011
2424899200,18cyclictest0-21swapper/120:10:011
2424899200,15cyclictest4713-21cat23:20:131
2424899200,15cyclictest4713-21cat23:20:121
2424899200,15cyclictest11168-21ls20:40:141
2424899200,15cyclictest0-21swapper/100:08:591
2424899200,14cyclictest0-21swapper/100:00:131
2424499209,10cyclictest0-21swapper/000:05:200
2424499204,2cyclictest880-21rs:main0
24244992017,2cyclictest11116-21munin-plugin-st00:30:000
2425399193,1cyclictest0-21swapper/222:30:332
2425399192,16cyclictest5181-21smtpd00:16:312
24253991917,1cyclictest10408-21which23:30:152
2425399190,1cyclictest0-21swapper/221:32:262
24248991914,4cyclictest0-21swapper/120:15:151
24248991914,4cyclictest0-21swapper/119:30:231
24248991914,4cyclictest0-21swapper/119:30:231
24248991913,5cyclictest1097-21ps00:10:221
24248991913,5cyclictest1097-21ps00:10:211
24248991912,6cyclictest6886-21tune2fs19:35:151
2424899190,1cyclictest0-21swapper/123:05:141
2424899190,1cyclictest0-21swapper/121:25:151
2424499192,16cyclictest27308-21seq23:03:180
24244991916,2cyclictest11811-21date19:45:020
2424499190,18cyclictest843-21systemd-network21:48:480
2424499190,16cyclictest8279-21nfsd421:30:210
24253991816,1cyclictest28-21ksoftirqd/200:38:482
24253991816,1cyclictest0-21swapper/222:45:052
24253991814,3cyclictest0-21swapper/221:07:432
24253991814,3cyclictest0-21swapper/200:23:152
2425399181,16cyclictest25565-21chrt23:56:382
2425399180,3cyclictest9456-21wc23:30:012
2425399180,3cyclictest455-21plymouthd23:20:142
2425399180,3cyclictest455-21plymouthd23:20:142
2425399180,3cyclictest16222-21if_lxdbr021:45:172
2425399180,2cyclictest4035-21H222:10:212
2425399180,2cyclictest3991-21H222:10:212
2425399180,17cyclictest3863-21munin-run23:19:592
2425399180,16cyclictest3985-21H222:10:212
24248991813,4cyclictest0-21swapper/120:45:201
24248991812,5cyclictest10457-21cut20:40:011
2424899180,0cyclictest0-21swapper/121:35:321
2424499183,1cyclictest0-21swapper/020:10:180
2424499182,15cyclictest0-21swapper/022:20:150
24244991816,1cyclictest9-21ksoftirqd/000:15:070
24244991816,1cyclictest5954-21cat23:20:210
24244991816,1cyclictest5954-21cat23:20:210
24244991816,1cyclictest0-21swapper/019:10:230
24244991814,3cyclictest22397-21basename20:05:010
2424499181,2cyclictest13911-21latency_hist00:35:000
2424499181,16cyclictest3989-21H222:10:210
2424499181,15cyclictest0-21swapper/020:30:010
2424499180,3cyclictest986-21fschecks_count19:25:150
2424499180,17cyclictest888-21nfsd400:10:210
2424499180,17cyclictest888-21nfsd400:10:210
2424499180,17cyclictest8209-21cron00:25:000
2424499180,17cyclictest3991-21H222:10:210
2424499180,17cyclictest19643-21perf20:00:010
2424499180,17cyclictest0-21swapper/021:00:230
24253991715,1cyclictest300712chrt23:08:492
24253991714,2cyclictest5711-21proc_pri21:25:192
24253991714,2cyclictest4035-21H222:10:212
24253991714,2cyclictest3983-21H222:10:212
24253991714,2cyclictest27085-21ntp_states20:10:192
24253991714,2cyclictest25601-21expr23:00:132
24253991714,2cyclictest24203-21smartctl20:05:202
24253991714,2cyclictest1784-21nfsd419:25:182
24253991714,2cyclictest11723-21expr00:30:162
24253991714,2cyclictest0-21swapper/221:51:472
2425399170,2cyclictest3983-21H222:10:212
2425399170,2cyclictest24926-21ntp_offset22:00:162
2425399170,2cyclictest22085-21nfsd423:50:222
2425399170,2cyclictest15381-21awk22:40:182
2425399170,2cyclictest1497-21cat20:25:012
2425399170,2cyclictest13972-21df_inode20:45:142
2425399170,2cyclictest11848-21apache_processe19:45:132
2425399170,2cyclictest11080-21chrt19:40:332
2425399170,1cyclictest3985-21H222:10:212
2425399170,1cyclictest3985-21H222:10:212
2425399170,1cyclictest0-21swapper/200:04:032
2425399170,16cyclictest4084-21munin-run21:25:012
2425399170,16cyclictest3991-21H222:10:212
2425399170,16cyclictest3985-21H222:10:212
2425399170,16cyclictest32647-21latency_hist19:25:012
2425399170,16cyclictest32179-21cut00:10:162
2425399170,16cyclictest32179-21cut00:10:162
2425399170,16cyclictest29570-21pzem_voltage21:10:212
2425399170,16cyclictest28183-21irqstats19:15:172
2425399170,16cyclictest26282-21apache_processe22:05:132
2425399170,16cyclictest23462-21cut22:00:012
2425399170,16cyclictest16626-21cpuspeed_turbos20:50:122
2425399170,16cyclictest16533-21/usr/sbin/munin23:40:182
2425399170,16cyclictest11161-21ps21:35:212
2425399170,16cyclictest0-21swapper/222:25:192
2425399170,14cyclictest0-21swapper/220:35:092
24244991714,2cyclictest8482-21pzem_current23:25:210
24244991714,2cyclictest4150-21munin-run23:20:010
24244991714,2cyclictest3799-21ls21:25:010
24244991714,2cyclictest28544-21grep23:05:150
24244991714,2cyclictest27231-21ls22:05:180
24244991714,2cyclictest26692-21pzem_voltage21:05:230
24244991714,2cyclictest26616-21tlsmgr20:46:360
24244991714,2cyclictest24491-21sort22:00:140
24244991714,2cyclictest23864-21expr23:55:130
24244991714,2cyclictest22327-21awk22:55:100
24244991714,2cyclictest19724-21expr22:50:180
24244991714,2cyclictest14737-21expr22:40:140
24244991714,2cyclictest0-21swapper/020:15:150
2424499170,2cyclictest3991-21H222:10:210
2424499170,2cyclictest3414-21master19:15:170
2424499170,2cyclictest31384-21timerandwakeup22:10:240
2424499170,2cyclictest22980-21bounce21:58:370
2424499170,2cyclictest15824-21expr23:40:140
2424499170,2cyclictest13537-21cut21:40:170
2424499170,2cyclictest11171-21processes21:35:210
2424499170,16cyclictest7561-21awk19:35:190
2424499170,16cyclictest6057-21cstates22:25:140
2424499170,16cyclictest4706-21awk19:30:200
2424499170,16cyclictest4706-21awk19:30:200
2424499170,16cyclictest3985-21H222:10:210
2424499170,16cyclictest31967-21nfsd421:15:190
2424499170,16cyclictest31163-21runrttasks20:20:120
2424499170,16cyclictest20339-21fschecks_time20:55:140
2424499170,16cyclictest19095-21sed21:50:160
2424499170,16cyclictest1521-21lxd21:14:500
24253991614,1cyclictest11241-21apt-get22:35:132
24253991614,1cyclictest0-21swapper/219:50:232
24253991614,1cyclictest0-21swapper/200:25:212
24253991613,2cyclictest13220-21iwlist23:35:152
2425399160,1cyclictest0-21swapper/220:40:182
2425399160,1cyclictest0-21swapper/200:05:012
2425399160,15cyclictest4020-21latency22:20:172
2425399160,15cyclictest22907-21df22:55:142
2425399160,15cyclictest0-21swapper/223:45:152
2425399160,15cyclictest0-21swapper/223:45:152
2425399160,15cyclictest0-21swapper/221:00:182
24244991614,1cyclictest9032-21cstates22:30:140
24244991614,1cyclictest0-21swapper/023:45:170
24244991614,1cyclictest0-21swapper/023:45:170
24244991614,1cyclictest0-21swapper/023:10:250
24244991614,1cyclictest0-21swapper/020:50:190
24244991614,1cyclictest0-21swapper/020:40:210
24244991614,1cyclictest0-21swapper/019:50:070
24244991613,2cyclictest27673-21ntp_states00:00:190
2424499161,1cyclictest0-21swapper/019:45:010
2424499160,1cyclictest0-21swapper/023:54:400
2424499160,15cyclictest13082-21fschecks_time23:35:140
2424499160,15cyclictest0-21swapper/022:15:140
2424499160,15cyclictest0-21swapper/021:25:110
24253991515,0cyclictest0-21swapper/221:40:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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