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2026-04-21 - 09:01
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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 rack7slot0.osadl.org (updated Tue Apr 21, 2026 00:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120650640,0irq/26-eth1-rx-0-21swapper/319:05:363
112750600,0irq/25-eth00-21swapper/119:05:041
112750490,0irq/25-eth00-21swapper/019:06:460
3255024121,0sleep20-21swapper/219:07:502
32299180,0cyclictest0-21swapper/122:54:461
324991615,0cyclictest24694-21diskmemload22:48:403
324991615,0cyclictest24694-21diskmemload22:48:393
32399160,0cyclictest0-21swapper/219:45:162
324991512,0cyclictest0-21swapper/322:54:553
32299150,0cyclictest0-21swapper/123:45:171
321991512,0cyclictest0-21swapper/022:10:360
321991512,0cyclictest0-21swapper/020:40:210
32199150,0cyclictest0-21swapper/021:25:220
32199150,0cyclictest0-21swapper/019:45:150
32199150,0cyclictest0-21swapper/019:35:190
324991411,0cyclictest0-21swapper/323:39:323
324991411,0cyclictest0-21swapper/321:47:263
32399148,0cyclictest18425-21sshd22:00:122
323991412,0cyclictest0-21swapper/221:30:542
32399140,0cyclictest0-21swapper/221:36:572
32299140,0cyclictest0-21swapper/122:11:411
321991411,0cyclictest0-21swapper/023:16:280
324991312,0cyclictest20526-21sshd00:27:173
324991312,0cyclictest0-21swapper/323:59:043
324991312,0cyclictest0-21swapper/300:30:463
324991311,0cyclictest0-21swapper/323:17:003
32399132,0cyclictest2434-21sshd23:50:132
32399130,0cyclictest11030-21diskstats19:30:122
32399130,0cyclictest11030-21diskstats19:30:112
32399130,0cyclictest0-21swapper/221:12:552
32399130,0cyclictest0-21swapper/219:35:122
322991312,0cyclictest0-21swapper/122:56:181
322991312,0cyclictest0-21swapper/122:56:181
322991312,0cyclictest0-21swapper/121:12:121
322991311,0cyclictest3424-21sshd00:07:371
32299130,0cyclictest0-21swapper/121:31:431
321991312,0cyclictest0-21swapper/023:26:130
321991312,0cyclictest0-21swapper/022:05:210
321991312,0cyclictest0-21swapper/000:25:560
32199130,0cyclictest2411-21sshd21:36:410
32199130,0cyclictest17827-21sshd22:17:070
324991211,0cyclictest11544-21sshd23:51:213
324991210,0cyclictest0-21swapper/321:59:313
324991210,0cyclictest0-21swapper/320:35:183
32499120,0cyclictest0-21swapper/322:39:223
32499120,0cyclictest0-21swapper/322:18:503
32499120,0cyclictest0-21swapper/321:26:313
32499120,0cyclictest0-21swapper/300:23:483
32499120,0cyclictest0-21swapper/300:18:483
323991211,0cyclictest22581-21sshd22:47:562
323991211,0cyclictest22581-21sshd22:47:552
323991211,0cyclictest0-21swapper/222:52:412
32399120,0cyclictest10606-21sshd00:34:412
32399120,0cyclictest0-21swapper/223:19:462
32399120,0cyclictest0-21swapper/222:41:382
32399120,0cyclictest0-21swapper/222:09:212
32399120,0cyclictest0-21swapper/221:26:222
32399120,0cyclictest0-21swapper/219:25:202
32399120,0cyclictest0-21swapper/200:36:252
322991211,0cyclictest112750irq/25-eth023:33:011
322991211,0cyclictest0-21swapper/121:52:521
32299120,0cyclictest0-21swapper/122:42:151
321991211,0cyclictest4623-21sshd21:41:130
321991211,0cyclictest0-21swapper/023:40:590
321991211,0cyclictest0-21swapper/022:01:050
321991210,0cyclictest24786-21sshd23:57:290
321991210,0cyclictest19711-21bash23:52:280
32199120,0cyclictest26353-21sshd22:26:530
32199120,0cyclictest0-21swapper/023:45:200
32199120,0cyclictest0-21swapper/022:35:070
112750120,0irq/25-eth08686-21sshd23:46:373
112750120,0irq/25-eth032342-21sshd22:06:083
9950110,0irq/24-0000:00:4797-21sshd00:38:130
324991111,0cyclictest2629-21sshd22:40:523
324991111,0cyclictest0-21swapper/322:24:503
324991111,0cyclictest0-21swapper/319:16:043
324991111,0cyclictest0-21swapper/300:37:433
324991111,0cyclictest0-21swapper/300:10:333
324991110,0cyclictest4012-21sshd23:02:433
324991110,0cyclictest32220-21sshd23:06:243
324991110,0cyclictest30389-21open_files21:40:193
324991110,0cyclictest28576-21sshd21:14:433
324991110,0cyclictest12110-21sshd22:12:043
324991110,0cyclictest0-21swapper/323:25:013
324991110,0cyclictest0-21swapper/322:56:273
324991110,0cyclictest0-21swapper/322:56:263
324991110,0cyclictest0-21swapper/322:01:023
324991110,0cyclictest0-21swapper/320:51:193
32499110,0cyclictest0-21swapper/321:35:173
323991111,0cyclictest0-21swapper/223:55:462
323991111,0cyclictest0-21swapper/223:36:002
323991111,0cyclictest0-21swapper/222:14:072
323991111,0cyclictest0-21swapper/200:13:592
323991111,0cyclictest0-21swapper/200:00:452
323991110,0cyclictest9492-21bash21:16:202
323991110,0cyclictest836-21cp22:58:002
323991110,0cyclictest836-21cp22:57:592
323991110,0cyclictest25574-21sshd00:23:402
323991110,0cyclictest22727-21df_inode23:05:132
323991110,0cyclictest19819-21sshd21:47:312
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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