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2026-06-03 - 06:29
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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 rack1slot2.osadl.org (updated Wed Jun 03, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1764524637,0sleep20-21swapper/219:21:282
1754324535,0sleep30-21swapper/319:20:173
1215523827,0sleep00-21swapper/019:19:340
1785623026,0sleep10-21swapper/119:23:511
179599985,0cyclictest0-21swapper/122:47:221
179599973,0cyclictest8596-21awk23:14:311
179599973,0cyclictest3571-21lldpd21:45:181
179599973,0cyclictest27539-21sadc21:34:161
179599973,0cyclictest2141-21awk23:29:301
179599973,0cyclictest2109-21sadc20:34:151
179599973,0cyclictest15434-21sadc22:04:161
179599973,0cyclictest11020-21awk21:24:321
179599972,0cyclictest7251-21sadc23:14:161
179599972,0cyclictest21420-21awk20:24:311
179599970,0cyclictest0-21swapper/122:55:481
179599970,0cyclictest0-21swapper/121:57:051
179599970,0cyclictest0-21swapper/100:29:461
8305060,0irq/26-0000:00:32760-21sh22:14:162
339960,0migration/39443-21sh00:47:143
339960,0migration/37793-21sh22:15:393
339960,0migration/36560-21runrttasks21:58:463
339960,0migration/35903-21sh23:10:403
339960,0migration/331691-21sh23:25:103
339960,0migration/329121-21unixbench-2d23:04:423
339960,0migration/327068-21unixbench_multi21:09:393
339960,0migration/323810-21aten_r1power_cu20:04:253
339960,0migration/316735-21sh22:21:223
339960,0migration/311683-21sh23:53:543
329960,0watchdog/321416-21sh21:48:273
29815060,0irq/29-eth0-tx-9963-21munin-node21:24:332
29815060,0irq/29-eth0-tx-27801-21munin-node21:14:320
29815060,0irq/29-eth0-tx-0-21swapper/020:39:390
29805060,0irq/28-eth0-rx-18286-21port_sshpriv23:54:373
29805060,0irq/28-eth0-rx-16597-21diskstats23:19:313
29805060,0irq/28-eth0-rx-0-21swapper/323:31:163
179599963,0cyclictest3571-21lldpd23:08:191
179599963,0cyclictest3571-21lldpd19:28:151
179599962,0cyclictest6196-21kthreadcore21:19:341
179599962,0cyclictest30445-21awk00:04:331
179599962,0cyclictest24855-21awk20:04:291
179599962,0cyclictest24171-21kthreadcore21:49:331
179599962,0cyclictest17939-21cat22:24:161
179599962,0cyclictest17875-21cut22:04:351
179599961,0cyclictest29579-21kthreadcore22:29:341
179599961,0cyclictest28203-21awk23:44:321
179599961,0cyclictest25570-21fschecks_time23:24:301
179599961,0cyclictest17953-21awk00:34:341
179599961,0cyclictest11823-21sadc23:54:161
179599960,0cyclictest7885-21kthreadcore21:39:341
179599960,0cyclictest6314-21runrttasks00:44:331
179599960,0cyclictest6051-21cut22:34:351
179599960,0cyclictest4194-21ssh22:52:161
179599960,0cyclictest31992-21ntpq19:34:311
179599960,0cyclictest30340-21memory22:09:341
179599960,0cyclictest29370-21kthreadcore21:14:341
179599960,0cyclictest29137-21kthreadcore00:39:351
179599960,0cyclictest25012-21sed23:39:411
179599960,0cyclictest23751-21cut23:59:331
179599960,0cyclictest19998-40yum-updatesd-he20:22:551
179599960,0cyclictest13604-21ssh00:12:531
179599960,0cyclictest13059-21kthreadcore22:19:341
179599960,0cyclictest12525-21kthreadcore23:34:351
179579965,0cyclictest2117-21ls20:34:150
179579960,0cyclictest0-21swapper/023:50:110
149960,0migration/09103-21sh22:19:150
149960,0migration/028028-21sh22:47:360
149960,0migration/017467-21sh22:23:230
149960,0migration/012088-21sh23:54:250
8305050,0irq/26-0000:00:0-21swapper/319:24:153
35150,0ktimersoftd/30-21swapper/300:29:463
339950,0migration/39427-21kthreadcore21:39:353
339950,0migration/38419-21kthreadcore22:54:333
339950,0migration/38351-21taskset19:47:243
339950,0migration/37906-21kthreadcore20:34:343
339950,0migration/35794-21aten_r1power_fr00:09:283
339950,0migration/330347-21taskset00:21:153
339950,0migration/328406-21taskset20:29:303
339950,0migration/327010-21sh22:44:443
339950,0migration/324296-21latency_hist22:09:163
339950,0migration/317594-21kthreadcore20:19:373
339950,0migration/317419-21kthreadcore21:04:343
339950,0migration/317282-21kthreadcore22:39:343
339950,0migration/312509-21taskset20:14:463
329950,0watchdog/331528-21kthreadcore21:34:353
329950,0watchdog/322014-21kthreadcore21:29:353
329950,0watchdog/316438-21perl22:04:313
329950,0watchdog/30-21swapper/320:59:393
29815050,0irq/29-eth0-tx-24187-21if_err_eth100:19:372
29815050,0irq/29-eth0-tx-23013-21ssh23:20:062
29815050,0irq/29-eth0-tx-0-21swapper/223:59:272
29815050,0irq/29-eth0-tx-0-21swapper/020:58:380
29815050,0irq/29-eth0-tx-0-21swapper/019:36:040
29805050,0irq/28-eth0-rx-9618-21kthreadcore21:59:333
29805050,0irq/28-eth0-rx-9347-21munin-node22:34:393
29805050,0irq/28-eth0-rx-8669-21iwlist23:14:323
29805050,0irq/28-eth0-rx-525-21grep00:24:343
29805050,0irq/28-eth0-rx-3882-21ssh22:51:263
29805050,0irq/28-eth0-rx-28197-21proc_pri21:49:373
29805050,0irq/28-eth0-rx-27227-21timerwakeupswit23:59:403
29805050,0irq/28-eth0-rx-22352-21kthreadcore20:24:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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