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2026-07-22 - 08:42
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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 highest latencies:
System rack1slot2.osadl.org (updated Wed Jul 22, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
462227069,0sleep30-21swapper/319:25:353
472323927,0sleep10-21swapper/119:26:451
447223828,0sleep20-21swapper/219:23:502
456022824,0sleep00-21swapper/019:24:520
49259965,0cyclictest16109-21diskmemload22:05:231
49259960,0cyclictest0-21swapper/123:07:401
339960,0migration/35715-21sh22:35:263
339960,0migration/33264-21kthreadcore22:53:353
339960,0migration/331505-21sh00:26:483
339960,0migration/329761-21sh00:07:053
339960,0migration/328787-21taskset23:28:333
339960,0migration/328296-21sh22:12:203
339960,0migration/322618-21sh22:44:533
339960,0migration/314712-21sh00:17:383
339960,0migration/31263-21sh23:12:013
339960,0migration/312607-21sh23:54:363
29805060,0irq/28-eth0-rx-4032-21cat23:13:353
29805060,0irq/28-eth0-rx-31746-21port_sshpriv00:43:403
29805060,0irq/28-eth0-rx-12080-21munin-run23:38:163
149960,0migration/0983-21sh23:11:110
149960,0migration/012721-21sh22:21:120
8305050,0irq/26-0000:00:5050-21wc19:28:163
8305050,0irq/26-0000:00:2694-21if_eth1.319:48:313
8305050,0irq/26-0000:00:10156-21awk20:38:322
49269955,0cyclictest0-21swapper/222:06:492
49269954,0cyclictest3524-21snmpd19:53:342
49269950,0cyclictest0-21swapper/222:42:272
49269950,0cyclictest0-21swapper/222:00:502
49269950,0cyclictest0-21swapper/221:41:172
49259953,0cyclictest14900-21awk22:23:361
49259950,0cyclictest0-21swapper/122:53:191
49259950,0cyclictest0-21swapper/122:33:181
49259950,0cyclictest0-21swapper/122:12:101
49259950,0cyclictest0-21swapper/100:26:011
49239955,0cyclictest0-21swapper/021:38:360
339950,0migration/39379-21fschecks_count19:53:293
339950,0migration/37411-21kthreadcore20:58:363
339950,0migration/36066-21munin-node00:28:363
339950,0migration/34557-21kthreadcore21:38:363
339950,0migration/3373-21missed_timers21:13:373
339950,0migration/332129-21kthreadcore22:13:343
339950,0migration/330481-21kthreadcore20:28:353
339950,0migration/329287-21munin-node20:03:403
339950,0migration/326723-21kthreadcore20:48:343
339950,0migration/325220-21kthreadcore23:43:343
339950,0migration/324243-21taskset00:40:143
339950,0migration/320047-21cpuspeed_turbos21:08:283
339950,0migration/319287-21taskset21:04:593
339950,0migration/318028-21munin-node22:03:373
339950,0migration/317764-21kthreadcore19:58:333
339950,0migration/317764-21kthreadcore19:58:333
339950,0migration/317714-21taskset23:19:533
339950,0migration/311993-21kthreadcore21:43:353
339950,0migration/310736-21kthreadcore22:58:333
329950,0watchdog/36180-21cut21:18:353
329950,0watchdog/36088-21perl20:13:303
329950,0watchdog/331249-21kthreadcore19:43:343
329950,0watchdog/33071-21kthreadcore00:08:353
329950,0watchdog/323673-21python23:03:393
329950,0watchdog/317482-21irqcore20:43:353
329950,0watchdog/30-21swapper/322:21:073
29815050,0irq/29-eth0-tx-24963-21iostat_ios00:23:342
29815050,0irq/29-eth0-tx-0-21swapper/020:58:300
29805050,0irq/28-eth0-rx-8491-21ssh00:33:283
29805050,0irq/28-eth0-rx-6314-21runrttasks21:58:503
29805050,0irq/28-eth0-rx-32187-21ssh22:52:543
29805050,0irq/28-eth0-rx-31165-21fschecks_time20:53:283
29805050,0irq/28-eth0-rx-17797-21kthreadcore23:58:343
29805050,0irq/28-eth0-rx-0-21swapper/323:48:343
29805050,0irq/28-eth0-rx-0-21swapper/323:38:403
29805050,0irq/28-eth0-rx-0-21swapper/322:28:293
29805050,0irq/28-eth0-rx-0-21swapper/300:48:293
249950,0watchdog/228893-21cut21:53:352
249950,0watchdog/20-21swapper/220:03:302
249950,0watchdog/20-21swapper/200:13:552
19150,0ktimersoftd/10-21swapper/121:48:501
179950,0migration/19632-21kthreadcore23:33:371
179950,0migration/14710-21kthreadcore00:48:341
179950,0migration/128805-21timerwakeupswit22:28:421
179950,0migration/127851-21kthreadcore21:33:331
179950,0migration/118758-21kthreadcore22:43:351
179950,0migration/116501-21cpuspeed_turbos20:43:301
179950,0migration/114476-21sh00:16:551
179950,0migration/112338-21taskset19:33:231
179950,0migration/111604-21kthreadcore20:38:331
179950,0migration/111012-21munin-node23:18:301
169950,0watchdog/16829-21kthreadcore20:13:341
169950,0watchdog/131247-21kthreadcore19:43:341
169950,0watchdog/128445-21grep23:28:311
169950,0watchdog/10-21swapper/122:58:191
149950,0migration/09853-21latency_hist21:43:160
149950,0migration/09480-21sh00:33:320
149950,0migration/08402-21taskset23:13:420
149950,0migration/08104-21munin-node22:38:320
149950,0migration/07352-21munin-node00:13:300
149950,0migration/05938-21kthreadcore21:58:340
149950,0migration/031382-21sh22:50:290
149950,0migration/02941-21irqcore00:48:330
149950,0migration/027658-21kthreadcore00:23:350
149950,0migration/02646-21kthreadcore00:08:350
149950,0migration/025533-21munin-node20:23:350
149950,0migration/022445-21sh00:20:190
149950,0migration/022179-21munin-node20:43:380
149950,0migration/022179-21kthreadcore23:23:330
149950,0migration/02125-21taskset21:55:410
149950,0migration/019077-21sh22:05:120
149950,0migration/018523-21munin-node23:03:320
149950,0migration/018244-21latency20:18:340
149950,0migration/016000-21fschecks_count22:43:310
149950,0migration/012700-21kthreadcore23:18:350
149950,0migration/011341-21kthreadcore19:53:330
149950,0migration/01127-21sh00:47:320
8305040,0irq/26-0000:00:0-21swapper/319:38:363
49269944,0cyclictest0-21swapper/222:34:342
49269943,0cyclictest6767-21awk23:53:322
49269943,0cyclictest3571-21lldpd23:33:352
49269943,0cyclictest3571-21lldpd23:09:352
49269943,0cyclictest3571-21lldpd21:44:332
49269943,0cyclictest3571-21lldpd21:24:032
49269943,0cyclictest3571-21lldpd21:20:332
49269943,0cyclictest3571-21lldpd21:13:332
49269943,0cyclictest3571-21lldpd21:11:032
49269943,0cyclictest3571-21lldpd20:58:322
49269943,0cyclictest3524-21snmpd23:48:202
49269943,0cyclictest3524-21snmpd22:25:052
49269943,0cyclictest3524-21snmpd22:20:202
49269943,0cyclictest3524-21snmpd21:05:192
49269943,0cyclictest3524-21snmpd19:40:342
49269943,0cyclictest3524-21snmpd19:28:492
49269943,0cyclictest3524-21snmpd00:53:362
49269943,0cyclictest3524-21snmpd00:33:212
49269943,0cyclictest3524-21snmpd00:08:212
49269943,0cyclictest20864-21munin-node23:43:282
49269943,0cyclictest20181-21awk23:23:312
49269943,0cyclictest19645-21awk21:48:312
49269943,0cyclictest18124-21awk00:38:312
49269943,0cyclictest16364-21awk00:18:332
49269943,0cyclictest13448-21awk23:38:322
49269943,0cyclictest12218-21sadc20:18:162
49269940,0cyclictest0-21swapper/222:47:202
49269940,0cyclictest0-21swapper/200:28:552
49259944,0cyclictest0-21swapper/100:45:061
49259943,0cyclictest4416-21awk21:58:321
49259943,0cyclictest3571-21lldpd00:20:061
49259943,0cyclictest3524-21snmpd21:30:341
49259943,0cyclictest3524-21snmpd21:16:041
49259943,0cyclictest3524-21snmpd21:06:341
49259943,0cyclictest3524-21snmpd20:54:491
49259943,0cyclictest3524-21snmpd20:31:041
49259943,0cyclictest3524-21snmpd20:11:491
49259943,0cyclictest3524-21snmpd19:57:191
49259943,0cyclictest3524-21snmpd00:28:511
49259943,0cyclictest3524-21snmpd00:05:351
49259943,0cyclictest30582-21awk23:48:321
49259943,0cyclictest28259-21awk21:53:331
49259943,0cyclictest18234-21ssh21:48:031
49259943,0cyclictest17080-21awk19:58:311
49259943,0cyclictest17080-21awk19:58:311
49259943,0cyclictest16768-21sadc00:38:171
49239943,0cyclictest9919-21awk22:58:310
49239943,0cyclictest3524-21snmpd23:58:050
49239943,0cyclictest3524-21snmpd23:48:350
49239943,0cyclictest3524-21snmpd23:48:050
49239943,0cyclictest3524-21snmpd22:11:200
49239943,0cyclictest3524-21snmpd21:24:040
49239943,0cyclictest3524-21snmpd21:03:490
49239943,0cyclictest3524-21snmpd20:06:040
49239943,0cyclictest31590-21awk20:53:290
49239943,0cyclictest2584-21awk19:48:310
49239942,0cyclictest13417-21kworker/0:222:32:570
49239940,0cyclictest0-21swapper/021:32:370
339940,0migration/39145-21cpu20:38:283
339940,0migration/321934-21kthreadcore20:23:333
339940,0migration/316229-21kthreadcore22:23:373
339940,0migration/314723-21kthreadcore00:53:353
339940,0migration/311022-21kthreadcore21:23:363
329940,0watchdog/33317-21grep20:33:353
329940,0watchdog/318747-21sort19:33:463
329940,0watchdog/318373-21cut21:28:353
29815040,0irq/29-eth0-tx-28842-21ssh22:13:172
29815040,0irq/29-eth0-tx-27844-21ssh22:10:592
29815040,0irq/29-eth0-tx-25033-21munin-node22:48:322
29815040,0irq/29-eth0-tx-16017-21munin-node19:58:330
29815040,0irq/29-eth0-tx-16017-21munin-node19:58:330
29815040,0irq/29-eth0-tx-0-21swapper/223:28:342
29815040,0irq/29-eth0-tx-0-21swapper/223:18:352
29815040,0irq/29-eth0-tx-0-21swapper/223:14:552
29815040,0irq/29-eth0-tx-0-21swapper/222:28:572
29815040,0irq/29-eth0-tx-0-21swapper/200:48:272
29815040,0irq/29-eth0-tx-0-21swapper/200:01:362
29815040,0irq/29-eth0-tx-0-21swapper/021:13:310
29815040,0irq/29-eth0-tx-0-21swapper/020:28:280
29815040,0irq/29-eth0-tx-0-21swapper/019:33:380
29805040,0irq/28-eth0-rx-23142-21cut21:48:343
29805040,0irq/28-eth0-rx-0-21swapper/323:24:043
29805040,0irq/28-eth0-rx-0-21swapper/322:38:543
29805040,0irq/28-eth0-rx-0-21swapper/321:53:313
29805040,0irq/28-eth0-rx-0-21swapper/321:33:473
29805040,0irq/28-eth0-rx-0-21swapper/320:18:343
29805040,0irq/28-eth0-rx-0-21swapper/300:18:313
259940,0migration/231675-21sh21:34:092
259940,0migration/224882-21kthreadcore00:03:372
259940,0migration/22344-21fschecks_time20:33:312
259940,0migration/222742-21runrttasks20:43:572
259940,0migration/21925-21munin-node19:48:292
259940,0migration/217784-21df_abs23:03:292
259940,0migration/217703-21kthreadcore20:18:342
259940,0migration/216175-21sh19:58:282
259940,0migration/216175-21sh19:58:282
249940,0watchdog/231250-21kthreadcore19:43:342
249940,0watchdog/228292-21grep20:48:352
249940,0watchdog/227764-21fschecks_time20:28:312
249940,0watchdog/225995-21diskstats00:43:312
249940,0watchdog/218374-21kthreadcore21:28:352
249940,0watchdog/20-21swapper/222:53:352
249940,0watchdog/20-21swapper/219:33:342
179940,0migration/18781-21kthreadcore23:53:341
179940,0migration/18318-21ksmtuned19:50:021
179940,0migration/17720-21fschecks_time22:38:291
179940,0migration/130601-21aten_r1power_vo00:08:291
179940,0migration/127665-21kthreadcore20:03:361
179940,0migration/127313-21kthreadcore20:48:341
179940,0migration/126458-21fschecks_count23:08:291
179940,0migration/125405-21munin-node23:23:381
179940,0migration/124273-21kthreadcore20:23:341
179940,0migration/123956-21taskset00:39:241
179940,0migration/123917-21kthreadcore21:08:341
179940,0migration/119983-21munin-node19:38:281
179940,0migration/119557-21taskset23:40:141
179940,0migration/11942-21cpuspeed_turbos20:33:301
179940,0migration/117416-21kthreadcore23:58:341
169940,0watchdog/16181-21tr21:18:351
169940,0watchdog/124486-21df_inode22:48:311
169940,0watchdog/11960-21kthreadcore22:13:351
169940,0watchdog/1126222sleep122:20:551
169940,0watchdog/10-21swapper/123:13:311
149940,0migration/06482-21kthreadcore23:33:360
149940,0migration/06427-21kthreadcore20:33:350
149940,0migration/029387-21kthreadcore23:28:350
149940,0migration/025962-21if_eth121:33:310
49269933,0cyclictest3571-21lldpd20:08:312
49269932,0cyclictest31440-21grep20:53:282
49269932,0cyclictest25974-21cat20:23:412
49259933,0cyclictest0-21swapper/121:39:411
49259932,0cyclictest6505-21awk20:58:341
49259932,0cyclictest6195-21awk19:28:311
49259932,0cyclictest3524-21snmpd21:23:341
49259932,0cyclictest21931-21awk23:43:311
49259930,0cyclictest10723-21df_inode00:53:291
49239933,0cyclictest13417-21kworker/0:222:53:390
49239933,0cyclictest13417-21kworker/0:222:34:550
49239933,0cyclictest13417-21kworker/0:221:49:110
49239933,0cyclictest13417-21kworker/0:221:08:290
49239933,0cyclictest13417-21kworker/0:200:38:240
49239932,0cyclictest8172-21tr20:13:340
49239932,0cyclictest813-21grep20:08:310
49239932,0cyclictest415-21tune2fs00:28:290
49239932,0cyclictest3524-21snmpd19:38:190
49239932,0cyclictest30921-21grep19:43:340
49239932,0cyclictest23073-21awk00:03:350
49239932,0cyclictest14823-21awk22:23:350
49239932,0cyclictest12924-21tune2fs23:38:300
49239932,0cyclictest11350-21awk00:53:320
49239931,0cyclictest3363-21uname21:18:340
49239930,0cyclictest1792-21cut22:13:350
49239930,0cyclictest14457-21df23:58:290
49239930,0cyclictest0-21swapper/019:28:290
29815030,0irq/29-eth0-tx-23414-21aten2.4-expect20:48:270
29815030,0irq/29-eth0-tx-0-21swapper/020:41:330
29805030,0irq/28-eth0-rx-0-21swapper/320:08:253
249930,0watchdog/20-21swapper/222:58:192
169930,0watchdog/10-21swapper/120:18:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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