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2026-06-02 - 17:04
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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 rack1slot1.osadl.org (updated Tue Jun 02, 2026 12:45:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
183472227158,25sleep30-21swapper/307:08:053
184852216149,21sleep00-21swapper/007:09:500
183462201162,26sleep20-21swapper/207:08:032
184522199162,24sleep10-21swapper/107:09:281
158952620,0sleep10-21swapper/112:09:041
189082610,0sleep00-21swapper/009:19:170
18584991918,1cyclictest9-21ksoftirqd/009:55:010
18584991918,1cyclictest9-21ksoftirqd/009:30:190
295252180,0sleep311446-21diskmemload10:15:203
18584991818,0cyclictest9-21ksoftirqd/010:35:140
18584991817,1cyclictest9-21ksoftirqd/010:55:010
18584991816,1cyclictest9-21ksoftirqd/011:25:150
18584991815,3cyclictest9-21ksoftirqd/011:48:400
35902170,0sleep00-21swapper/010:25:140
1860599172,1cyclictest35-21ksoftirqd/309:30:163
1860599170,1cyclictest6139-21grep11:55:153
1860599170,1cyclictest1457-21unixbench_multi10:20:213
18584991717,0cyclictest9-21ksoftirqd/009:45:140
18584991717,0cyclictest9-21ksoftirqd/007:35:120
18584991716,1cyclictest9-21ksoftirqd/009:05:140
18584991715,1cyclictest9-21ksoftirqd/007:15:140
18584991715,1cyclictest9-21ksoftirqd/007:15:130
18595991614,1cyclictest28-21ksoftirqd/207:49:592
18584991616,0cyclictest9-21ksoftirqd/010:30:180
18584991614,1cyclictest9-21ksoftirqd/012:20:010
18584991614,1cyclictest9-21ksoftirqd/011:35:200
1860599150,1cyclictest8503-21cstates11:15:143
1860599150,1cyclictest6991-21/usr/sbin/munin09:00:123
18584991515,0cyclictest9-21ksoftirqd/009:25:190
18584991514,1cyclictest9-21ksoftirqd/008:45:210
18584991513,1cyclictest9-21ksoftirqd/010:05:000
23862140,0sleep20-21swapper/207:40:192
194542140,0sleep30-21swapper/308:15:203
1860599140,1cyclictest20557-21memory09:20:163
1860599140,1cyclictest0-21swapper/308:30:193
1860599140,0cyclictest11446-21diskmemload12:05:183
1860599140,0cyclictest0-21swapper/311:00:123
18595991412,0cyclictest28-21ksoftirqd/212:19:542
1858799140,1cyclictest0-21swapper/109:50:091
1858499149,4cyclictest9-21ksoftirqd/010:10:210
18584991414,0cyclictest9-21ksoftirqd/011:50:120
18584991414,0cyclictest9-21ksoftirqd/010:16:190
18584991413,1cyclictest9-21ksoftirqd/011:45:010
18584991413,1cyclictest9-21ksoftirqd/009:55:110
18584991413,1cyclictest9-21ksoftirqd/009:00:190
18584991413,1cyclictest9-21ksoftirqd/007:25:130
18584991412,1cyclictest9-21ksoftirqd/011:10:200
1860599133,9cyclictest11446-21diskmemload10:32:303
1860599131,1cyclictest1029-21snmpd09:28:333
1860599130,2cyclictest0-21swapper/311:35:123
1860599130,12cyclictest28747-21ssh11:41:333
1860599130,12cyclictest0-21swapper/310:00:233
1860599130,1cyclictest6866-21perf10:30:003
1860599130,1cyclictest3996-21ssh11:51:463
1860599130,1cyclictest11446-21diskmemload11:47:493
1860599130,0cyclictest11446-21diskmemload10:46:453
18584991312,1cyclictest9-21ksoftirqd/010:44:480
18584991312,1cyclictest9-21ksoftirqd/007:50:000
18584991311,1cyclictest9-21ksoftirqd/012:35:010
18584991311,1cyclictest9-21ksoftirqd/012:35:000
18584991311,1cyclictest9-21ksoftirqd/012:04:590
18584991311,1cyclictest9-21ksoftirqd/012:00:000
18584991310,1cyclictest9-21ksoftirqd/009:00:000
1860599122,9cyclictest11447-21perf09:10:013
1860599122,9cyclictest11446-21diskmemload11:09:083
1860599120,2cyclictest32234-21/usr/sbin/munin09:35:173
1860599120,1cyclictest21907-21memory10:05:163
1860599120,1cyclictest13975-21df09:55:143
1860599120,1cyclictest11446-21diskmemload10:43:393
1860599120,1cyclictest11446-21diskmemload09:44:203
1860599120,0cyclictest11446-21diskmemload12:33:513
1860599120,0cyclictest11446-21diskmemload12:33:503
1860599120,0cyclictest11446-21diskmemload11:11:453
1860599120,0cyclictest0-21swapper/311:21:113
1859599120,0cyclictest0-21swapper/209:30:112
1858499127,4cyclictest9-21ksoftirqd/009:10:140
1858499127,4cyclictest9-21ksoftirqd/009:10:130
18584991212,0cyclictest9-21ksoftirqd/012:20:100
18584991212,0cyclictest9-21ksoftirqd/010:08:170
18584991212,0cyclictest9-21ksoftirqd/008:40:000
18584991211,1cyclictest9-21ksoftirqd/012:05:120
18584991211,1cyclictest9-21ksoftirqd/011:20:000
18584991211,1cyclictest9-21ksoftirqd/011:00:570
18584991211,1cyclictest9-21ksoftirqd/010:55:000
18584991211,1cyclictest9-21ksoftirqd/007:25:010
18584991210,1cyclictest9-21ksoftirqd/012:30:010
18584991210,1cyclictest9-21ksoftirqd/011:20:150
18584991210,1cyclictest9-21ksoftirqd/011:05:230
18584991210,1cyclictest9-21ksoftirqd/009:45:000
18584991210,1cyclictest9-21ksoftirqd/007:15:000
18584991210,0cyclictest9-21ksoftirqd/010:24:590
1860599115,5cyclictest1029-21snmpd07:27:483
1860599112,8cyclictest11446-21diskmemload12:26:353
1860599111,10cyclictest0-21swapper/309:50:143
1860599110,1cyclictest30235-21df08:40:143
1860599110,1cyclictest15931-21df_inode11:25:133
1860599110,1cyclictest0-21swapper/312:36:033
1860599110,1cyclictest0-21swapper/312:03:303
1860599110,1cyclictest0-21swapper/309:45:023
1860599110,1cyclictest0-21swapper/309:10:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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