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2026-05-23 - 05:56
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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 Sat May 23, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
430125041,0sleep20-21swapper/219:23:042
401923626,0sleep30-21swapper/319:19:453
416523422,0sleep00-21swapper/019:21:300
419923026,0sleep10-21swapper/119:21:511
43949999,0cyclictest3524-21snmpd23:18:180
8305070,0irq/26-0000:00:6592-21awk23:28:222
43949976,0cyclictest24424-21timerwakeupswit23:53:470
329970,0watchdog/328811-21sh23:19:293
43949960,0cyclictest0-21swapper/022:35:450
43949960,0cyclictest0-21swapper/021:34:440
339960,0migration/37941-21sh22:32:063
339960,0migration/323654-21sh22:38:443
339960,0migration/319337-21sh22:58:203
339960,0migration/319314-21sh00:11:433
339960,0migration/317836-21sh23:53:303
29815060,0irq/29-eth0-tx-15747-21munin-node20:38:390
29805060,0irq/28-eth0-rx-31882-21perl00:38:353
29805060,0irq/28-eth0-rx-20543-21df00:13:353
29805060,0irq/28-eth0-rx-12247-21diskstats19:28:353
259960,0migration/223912-21sh21:27:122
149960,0migration/03465-21sh22:48:380
149960,0migration/019763-21sh00:12:570
149960,0migration/014838-21sh00:45:280
8305050,0irq/26-0000:00:20232-1kworker/2:2H21:13:402
8305050,0irq/26-0000:00:15538-21kthreadcore22:53:402
43969955,0cyclictest0-21swapper/220:08:232
43969954,0cyclictest13905-21awk21:58:402
43969950,0cyclictest0-21swapper/223:39:192
43969950,0cyclictest0-21swapper/223:32:232
43969950,0cyclictest0-21swapper/222:20:202
43969950,0cyclictest0-21swapper/221:48:292
43969950,0cyclictest0-21swapper/220:33:462
43959955,0cyclictest0-21swapper/123:22:291
43959955,0cyclictest0-21swapper/122:12:571
43959955,0cyclictest0-21swapper/121:32:261
43959955,0cyclictest0-21swapper/120:28:351
43959954,0cyclictest3524-21snmpd19:42:541
43959950,0cyclictest0-21swapper/123:50:331
43959950,0cyclictest0-21swapper/123:36:211
43959950,0cyclictest0-21swapper/122:46:131
43959950,0cyclictest0-21swapper/122:36:271
43959950,0cyclictest0-21swapper/100:44:281
43959950,0cyclictest0-21swapper/100:10:431
43949955,0cyclictest0-21swapper/000:49:550
43949955,0cyclictest0-21swapper/000:36:120
43949955,0cyclictest0-21swapper/000:02:180
43949950,0cyclictest0-21swapper/023:00:390
35150,0ktimersoftd/30-21swapper/321:54:093
339950,0migration/39393-21fschecks_time20:33:333
339950,0migration/36898-21kthreadcore21:13:413
339950,0migration/35406-21fschecks_time19:23:353
339950,0migration/35394-21kthreadcore00:03:413
339950,0migration/34621-21taskset20:51:483
339950,0migration/332297-21kthreadcore23:23:393
339950,0migration/332142-21sh22:43:433
339950,0migration/331339-21kthreadcore23:03:393
339950,0migration/331189-21irqcore22:08:383
339950,0migration/329773-21taskset00:35:253
339950,0migration/329290-21kthreadcore21:28:403
339950,0migration/324730-21kthreadcore19:58:383
339950,0migration/32408-21munin-node19:43:383
339950,0migration/323977-21kthreadcore19:33:413
339950,0migration/323458-21fschecks_count20:43:353
339950,0migration/323112-21kthreadcore22:03:393
339950,0migration/32176-21idleruntime21:33:373
339950,0migration/321301-21kthreadcore21:43:403
339950,0migration/321143-21runrttasks00:30:283
339950,0migration/317531-21kthreadcore20:13:393
339950,0migration/315923-21aten_r1power_cu21:23:323
339950,0migration/312882-21kthreadcore21:18:393
329950,0watchdog/330739-21ssh22:24:573
329950,0watchdog/327770-21irqcore21:08:373
329950,0watchdog/32435-21sh00:03:173
329950,0watchdog/315008-21python22:33:453
329950,0watchdog/30-21swapper/321:58:413
329950,0watchdog/30-21swapper/321:03:493
29815050,0irq/29-eth0-tx-8567-21munin-node20:33:410
29815050,0irq/29-eth0-tx-6267-21munin-node22:13:362
29815050,0irq/29-eth0-tx-2288-21munin-node22:48:372
29815050,0irq/29-eth0-tx-18946-21munin-node21:43:432
29815050,0irq/29-eth0-tx-13886-21python00:43:462
29815050,0irq/29-eth0-tx-0-21swapper/223:58:252
29815050,0irq/29-eth0-tx-0-21swapper/223:13:352
29815050,0irq/29-eth0-tx-0-21swapper/223:01:382
29815050,0irq/29-eth0-tx-0-21swapper/222:37:562
29815050,0irq/29-eth0-tx-0-21swapper/200:25:212
29815050,0irq/29-eth0-tx-0-21swapper/019:28:340
29805050,0irq/28-eth0-rx-6929-21kthreadcore23:08:393
29805050,0irq/28-eth0-rx-32704-21kthreadcore20:03:383
29805050,0irq/28-eth0-rx-27753-21kthreadcore23:38:393
29805050,0irq/28-eth0-rx-16622-21kthreadcore23:13:393
29805050,0irq/28-eth0-rx-13439-21grep23:28:463
29805050,0irq/28-eth0-rx-0-21swapper/323:44:553
29805050,0irq/28-eth0-rx-0-21swapper/323:34:233
29805050,0irq/28-eth0-rx-0-21swapper/322:13:433
29805050,0irq/28-eth0-rx-0-21swapper/321:50:463
29805050,0irq/28-eth0-rx-0-21swapper/321:43:123
29805050,0irq/28-eth0-rx-0-21swapper/300:49:373
259950,0migration/27016-21sh22:29:332
259950,0migration/232727-21latency_hist23:43:222
259950,0migration/230473-21fschecks_count22:08:352
259950,0migration/227300-21fschecks_time21:08:342
259950,0migration/21903-21munin-node19:43:352
259950,0migration/213877-21aten2.4-expect00:28:342
259950,0migration/212136-21sh21:57:362
179950,0migration/18814-21sh23:48:071
179950,0migration/129926-21latency_hist20:48:221
179950,0migration/122261-21latency_hist00:33:221
169950,0watchdog/132534-21needreboot23:58:411
149950,0migration/09088-21fschecks_time19:48:330
149950,0migration/08847-21kthreadcore20:08:390
149950,0migration/08293-21kthreadcore00:23:400
149950,0migration/07911-21taskset19:46:210
149950,0migration/06339-21kthreadcore21:53:370
149950,0migration/03808-21kthreadcore23:43:390
149950,0migration/030677-21kthreadcore21:08:380
149950,0migration/028683-21kthreadcore20:23:390
149950,0migration/028501-21taskset19:58:390
149950,0migration/026180-21sh21:45:080
149950,0migration/025104-21munin-node20:18:410
149950,0migration/024833-21sh22:40:570
149950,0migration/022121-21kthreadcore19:33:400
149950,0migration/020348-21runrttasks00:28:470
149950,0migration/020242-21taskset22:01:040
149950,0migration/017513-21kthreadcore19:53:390
149950,0migration/017174-21kthreadcore23:33:400
149950,0migration/016477-21sh23:50:200
149950,0migration/014344-21kthreadcore21:38:390
149950,0migration/01420-21kthreadcore00:38:390
149950,0migration/013647-21sh22:15:350
149950,0migration/011984-21latency_hist20:13:220
8305040,0irq/26-0000:00:0-21swapper/200:13:222
43969944,0cyclictest305350irq/27-eth120:01:452
43969944,0cyclictest305350irq/27-eth119:33:332
43969944,0cyclictest0-21swapper/222:39:252
43969943,0cyclictest9356-21awk19:48:342
43969943,0cyclictest3571-21lldpd22:23:552
43969943,0cyclictest3571-21lldpd20:13:232
43969943,0cyclictest3571-21lldpd19:53:232
43969943,0cyclictest3571-21lldpd19:23:522
43969943,0cyclictest3524-21snmpd23:33:412
43969943,0cyclictest3524-21snmpd23:03:262
43969943,0cyclictest17253-21awk00:48:372
43969943,0cyclictest16795-21awk20:38:382
43969943,0cyclictest12891-21awk19:28:382
43969940,0cyclictest0-21swapper/220:21:372
43959943,0cyclictest3571-21lldpd23:38:271
43959943,0cyclictest3571-21lldpd23:13:251
43959943,0cyclictest3571-21lldpd22:23:251
43959943,0cyclictest3571-21lldpd21:38:541
43959943,0cyclictest3571-21lldpd20:33:241
43959943,0cyclictest3571-21lldpd19:58:221
43959943,0cyclictest3571-21lldpd00:38:271
43959943,0cyclictest3250-21irqbalance22:18:281
43959943,0cyclictest3250-21irqbalance21:18:481
43959943,0cyclictest3250-21irqbalance21:13:281
43959943,0cyclictest3250-21irqbalance21:08:381
43959943,0cyclictest3250-21irqbalance20:58:281
43959943,0cyclictest3250-21irqbalance20:53:481
43959943,0cyclictest3250-21irqbalance20:49:181
43959943,0cyclictest3250-21irqbalance20:39:081
43959943,0cyclictest3250-21irqbalance20:15:581
43959943,0cyclictest3250-21irqbalance20:09:381
43959943,0cyclictest3250-21irqbalance19:44:081
43959943,0cyclictest3250-21irqbalance19:33:581
43959943,0cyclictest3250-21irqbalance19:28:281
43959943,0cyclictest3250-21irqbalance00:48:291
43959943,0cyclictest3250-21irqbalance00:33:291
43959943,0cyclictest27596-21awk20:23:371
43959943,0cyclictest21279-21awk00:13:381
43959943,0cyclictest13857-21awk21:58:391
43949944,0cyclictest0-21swapper/023:19:060
43949944,0cyclictest0-21swapper/022:20:180
43949944,0cyclictest0-21swapper/021:51:080
43949943,0cyclictest3524-21snmpd22:07:100
43949943,0cyclictest3524-21snmpd19:27:390
43949943,0cyclictest25739-21awk21:28:370
43949943,0cyclictest20520-21awk21:03:470
43949943,0cyclictest0-21swapper/020:28:320
339940,0migration/37938-21df_abs00:43:353
339940,0migration/328192-21kthreadcore20:23:383
339940,0migration/318849-21taskset20:59:443
339940,0migration/315194-21taskset19:52:353
339940,0migration/310891-21missed_timers20:53:403
339940,0migration/310152-21sh23:48:343
329940,0watchdog/3658-21ps19:42:413
329940,0watchdog/30-21swapper/320:38:453
29815040,0irq/29-eth0-tx-0-21swapper/223:49:012
29815040,0irq/29-eth0-tx-0-21swapper/223:18:252
29815040,0irq/29-eth0-tx-0-21swapper/223:08:312
29815040,0irq/29-eth0-tx-0-21swapper/222:03:382
29815040,0irq/29-eth0-tx-0-21swapper/221:33:272
29815040,0irq/29-eth0-tx-0-21swapper/200:38:362
29815040,0irq/29-eth0-tx-0-21swapper/200:33:282
29815040,0irq/29-eth0-tx-0-21swapper/200:08:332
29815040,0irq/29-eth0-tx-0-21swapper/021:18:380
29805040,0irq/28-eth0-rx-0-21swapper/322:58:403
29805040,0irq/28-eth0-rx-0-21swapper/322:48:403
29805040,0irq/28-eth0-rx-0-21swapper/322:18:433
29805040,0irq/28-eth0-rx-0-21swapper/300:23:263
29805040,0irq/28-eth0-rx-0-21swapper/300:19:543
259940,0migration/29558-21fschecks_time21:18:352
259940,0migration/28972-21nfs_client00:03:432
259940,0migration/232316-21kthreadcore00:18:402
259940,0migration/231100-21kthreadcore19:38:392
259940,0migration/230791-21ntp_offset21:28:422
259940,0migration/230718-21fschecks_time20:03:352
259940,0migration/230454-21df_abs20:48:322
259940,0migration/224457-21unixbench-2d23:53:472
249940,0watchdog/232709-21munin-node20:23:452
249940,0watchdog/220987-21kthreadcore21:03:492
249940,0watchdog/20-21swapper/222:43:412
249940,0watchdog/20-21swapper/221:38:332
179940,0migration/19730-21kthreadcore23:28:391
179940,0migration/19264-21kthreadcore19:23:401
179940,0migration/17485-21runrttasks22:13:381
179940,0migration/16646-21latency_hist23:28:221
179940,0migration/15063-21kthreadcore21:33:411
179940,0migration/14333-21kthreadcore22:48:391
179940,0migration/13195-21df_abs00:03:361
179940,0migration/131065-21munin-node20:03:371
179940,0migration/130389-21irqrtprio00:18:401
179940,0migration/127728-21aten_r1power_cu21:48:321
179940,0migration/125896-21unixbench_singl21:03:571
179940,0migration/122262-21kthreadcore22:58:391
179940,0migration/121420-21aten_r1power_fr22:03:331
179940,0migration/120929-21kthreadcore21:43:401
179940,0migration/119386-21aten_r1power_vo20:18:341
179940,0migration/117210-21sh22:53:431
179940,0migration/116327-21diskmemload21:23:341
179940,0migration/113525-21taskset00:28:171
179940,0migration/110409-21kthreadcore23:08:401
169940,0watchdog/14467-21fschecks_count21:53:331
169940,0watchdog/125766-21ssh23:57:051
169940,0watchdog/10-21swapper/119:48:411
149940,0migration/07728-21kthreadcore20:53:390
149940,0migration/031254-21fschecks_time23:23:350
149940,0migration/012721-21fschecks_count20:58:340
43969932,0cyclictest3571-21lldpd20:43:232
43969932,0cyclictest3524-21snmpd20:29:092
43969932,0cyclictest13272-21awk20:58:362
43969931,0cyclictest0-21swapper/220:53:352
43959932,0cyclictest3571-21lldpd22:38:251
43959930,0cyclictest2206-21sh23:03:461
43949932,0cyclictest8976-21cut23:28:380
43949932,0cyclictest5081-21kthreadcore22:28:410
43949932,0cyclictest5034-21tune2fs23:08:350
43949932,0cyclictest3524-21snmpd20:43:390
43949932,0cyclictest31219-21awk20:48:350
43949932,0cyclictest31026-21awk22:08:370
43949932,0cyclictest30728-21perl20:03:350
43949932,0cyclictest29918-21awk00:18:380
43949932,0cyclictest24703-21awk22:23:370
43949932,0cyclictest12090-21awk22:53:370
43949930,0cyclictest26223-21munin-node19:38:330
43949930,0cyclictest0-21swapper/021:28:220
329930,0watchdog/30-21swapper/319:53:253
29815030,0irq/29-eth0-tx-0-21swapper/021:13:340
29805030,0irq/28-eth0-rx-0-21swapper/320:32:483
29805030,0irq/28-eth0-rx-0-21swapper/320:18:333
29805030,0irq/28-eth0-rx-0-21swapper/320:08:333
169930,0watchdog/10-21swapper/122:28:331
169930,0watchdog/10-21swapper/119:53:291
43949921,0cyclictest2637-21latency_hist00:03:220
43949921,0cyclictest0-21swapper/023:03:220
43949920,0cyclictest20116-21date00:13:220
43949920,0cyclictest0-21swapper/023:38:220
43949920,0cyclictest0-21swapper/022:43:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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