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2026-04-27 - 10:15
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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 Mon Apr 27, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1302624536,0sleep10-21swapper/119:19:331
1293624432,0sleep20-21swapper/219:18:302
1291223727,0sleep30-21swapper/319:18:193
1303523524,0sleep00-21swapper/019:19:400
132349999,0cyclictest3524-21snmpd22:45:550
339960,0migration/332145-21sh00:49:443
339960,0migration/330525-21kthreadcore00:11:333
339960,0migration/323594-21sh00:45:023
339960,0migration/323467-21kthreadcore23:11:303
339960,0migration/322984-21munin-node00:26:303
339960,0migration/322494-21sh22:13:123
339960,0migration/317346-21sh21:32:503
339960,0migration/312780-21proc_pri22:06:363
339960,0migration/311592-21sh00:16:563
339960,0migration/311193-21sh21:47:193
29805060,0irq/28-eth0-rx-9725-21fschecks_time23:41:273
29805060,0irq/28-eth0-rx-27783-21sh21:41:163
29805060,0irq/28-eth0-rx-27783-21sh21:41:163
29805060,0irq/28-eth0-rx-0-21swapper/322:41:303
149960,0migration/05611-21sh00:33:120
149960,0migration/029217-21kthreadcore23:51:320
149960,0migration/018626-21sh21:36:080
8305050,0irq/26-0000:00:12951-21ls23:06:132
339950,0migration/37301-21fschecks_time20:01:283
339950,0migration/37146-21diskmemload22:22:213
339950,0migration/36732-21kthreadcore23:01:333
339950,0migration/35406-21munin-node20:41:343
339950,0migration/35393-21kthreadcore20:21:313
339950,0migration/330282-21aten_r1power_fr22:01:263
339950,0migration/323977-21timerandwakeup21:16:383
339950,0migration/322199-21taskset23:26:473
339950,0migration/321419-21kthreadcore20:31:333
339950,0migration/321155-21munin-node20:11:253
339950,0migration/31886-21fschecks_time21:26:283
339950,0migration/31777-21latency22:56:333
339950,0migration/314272-21taskset23:23:503
339950,0migration/31256-21taskset19:31:333
339950,0migration/31208-21diskmemload23:53:293
329950,0watchdog/332722-21iostat_ios19:56:283
329950,0watchdog/332151-21ssh21:23:163
329950,0watchdog/328656-21kthreadcore22:16:323
329950,0watchdog/325936-21ps22:51:373
329950,0watchdog/325223-21perl19:51:283
329950,0watchdog/324037-21sh23:31:173
329950,0watchdog/321612-21aten_r1power_cu21:56:243
329950,0watchdog/313598-21tr21:11:323
329950,0watchdog/313209-21cut00:36:373
329950,0watchdog/311011-21sh22:46:253
329950,0watchdog/30-21swapper/323:58:093
329950,0watchdog/30-21swapper/323:47:493
29815050,0irq/29-eth0-tx-31204-21ssh21:21:370
29815050,0irq/29-eth0-tx-18972-21munin-node21:36:262
29815050,0irq/29-eth0-tx-0-21swapper/019:31:330
29805050,0irq/28-eth0-rx-664-21tr21:01:333
29805050,0irq/28-eth0-rx-21608-21ssh00:25:483
29805050,0irq/28-eth0-rx-15856-21kthreadcore20:26:323
29805050,0irq/28-eth0-rx-14773-21tr21:51:303
29805050,0irq/28-eth0-rx-0-21swapper/323:36:273
29805050,0irq/28-eth0-rx-0-21swapper/323:20:233
29805050,0irq/28-eth0-rx-0-21swapper/323:06:183
29805050,0irq/28-eth0-rx-0-21swapper/322:29:143
29805050,0irq/28-eth0-rx-0-21swapper/321:39:323
29805050,0irq/28-eth0-rx-0-21swapper/319:41:313
29805050,0irq/28-eth0-rx-0-21swapper/300:34:553
27150,0ktimersoftd/20-21swapper/219:35:252
249950,0watchdog/23864-21grep23:16:332
249950,0watchdog/20-21swapper/223:21:332
19150,0ktimersoftd/10-21swapper/123:57:331
19150,0ktimersoftd/10-21swapper/123:25:321
19150,0ktimersoftd/10-21swapper/119:35:251
179950,0migration/125683-21kthreadcore21:56:321
179950,0migration/124640-21sh22:32:591
179950,0migration/114909-21sh22:26:331
169950,0watchdog/14374-21timerwakeupswit22:01:401
169950,0watchdog/126635-21tr20:36:321
169950,0watchdog/125270-21head00:46:291
149950,0migration/05655-21irqcore21:46:300
149950,0migration/05215-21latency20:41:320
149950,0migration/030979-21munin-node00:46:410
149950,0migration/025757-21kthreadcore20:56:310
149950,0migration/025696-21kthreadcore22:16:320
149950,0migration/024248-21taskset21:16:460
149950,0migration/024173-21kthreadcore00:06:320
149950,0migration/023580-21irqrtprio00:26:330
149950,0migration/022629-21kthreadcore20:11:300
149950,0migration/022150-21fschecks_count21:56:270
149950,0migration/021916-21kthreadcore23:46:310
149950,0migration/020269-21kthreadcore19:46:310
149950,0migration/019817-21missed_timers20:51:320
149950,0migration/01916-21fschecks_time21:26:280
149950,0migration/017953-21kthreadcore20:06:310
149950,0migration/017807-21munin-node20:31:280
149950,0migration/017766-21kthreadcore22:11:320
149950,0migration/017526-21kthreadcore21:51:310
149950,0migration/017094-21irqrtprio00:41:320
149950,0migration/01521-21munin-node23:36:320
149950,0migration/01269-21kthreadcore19:56:290
149950,0migration/012431-21kthreadcore19:41:310
149950,0migration/011626-21taskset00:17:020
149950,0migration/011105-21kthreadcore00:36:340
149950,0migration/010783-21sh00:00:470
149950,0migration/010480-21aten_r1power_cu21:11:250
132369952,0cyclictest10999-21awk19:41:292
132359955,0cyclictest0-21swapper/121:22:061
132359955,0cyclictest0-21swapper/100:03:421
132359954,0cyclictest20587-21sadc20:11:131
132359950,0cyclictest0-21swapper/122:51:101
132349955,0cyclictest0-21swapper/023:41:320
132349955,0cyclictest0-21swapper/023:29:520
132349955,0cyclictest0-21swapper/022:59:260
132349955,0cyclictest0-21swapper/022:51:140
132349955,0cyclictest0-21swapper/021:39:020
132349950,0cyclictest0-21swapper/022:23:200
329940,0watchdog/37933-21kthreadcore19:36:323
329940,0watchdog/30-21swapper/322:31:323
329940,0watchdog/30-21swapper/321:06:323
329940,0watchdog/30-21swapper/320:36:323
329940,0watchdog/30-21swapper/320:19:003
29815040,0irq/29-eth0-tx-6512-21munin-node22:06:352
29815040,0irq/29-eth0-tx-4254-21munin-node21:46:262
29815040,0irq/29-eth0-tx-24650-21diskmemload22:21:382
29815040,0irq/29-eth0-tx-24079-21ssh23:31:242
29815040,0irq/29-eth0-tx-21930-21ssh23:11:252
29815040,0irq/29-eth0-tx-20256-21ssh23:07:362
29815040,0irq/29-eth0-tx-15530-21kthreadcore00:01:332
29815040,0irq/29-eth0-tx-11895-21ssh00:17:472
29815040,0irq/29-eth0-tx-0-21swapper/223:41:502
29815040,0irq/29-eth0-tx-0-21swapper/223:26:292
29815040,0irq/29-eth0-tx-0-21swapper/222:31:272
29815040,0irq/29-eth0-tx-0-21swapper/221:56:172
29815040,0irq/29-eth0-tx-0-21swapper/221:52:352
29815040,0irq/29-eth0-tx-0-21swapper/221:42:252
29815040,0irq/29-eth0-tx-0-21swapper/221:42:252
29815040,0irq/29-eth0-tx-0-21swapper/221:26:202
29815040,0irq/29-eth0-tx-0-21swapper/221:23:252
29815040,0irq/29-eth0-tx-0-21swapper/200:26:362
29815040,0irq/29-eth0-tx-0-21swapper/200:21:262
29815040,0irq/29-eth0-tx-0-21swapper/200:08:262
29815040,0irq/29-eth0-tx-0-21swapper/020:36:410
29815040,0irq/29-eth0-tx-0-21swapper/019:21:310
29805040,0irq/28-eth0-rx-0-21swapper/322:36:253
29805040,0irq/28-eth0-rx-0-21swapper/320:06:253
29805040,0irq/28-eth0-rx-0-21swapper/319:26:303
29805040,0irq/28-eth0-rx-0-21swapper/300:06:503
29805040,0irq/28-eth0-rx-0-21swapper/300:01:173
27140,0ktimersoftd/20-21swapper/222:14:422
26010240,0sleep10-21swapper/122:51:401
259940,0migration/232292-21kthreadcore22:56:322
259940,0migration/231586-21kthreadcore22:36:322
259940,0migration/223528-21latency23:46:322
259940,0migration/220351-21munin-node20:51:392
259940,0migration/216822-21kthreadcore20:06:312
259940,0migration/214103-21kthreadcore22:26:312
259940,0migration/212644-21runrttasks20:01:382
259940,0migration/210420-21latency_hist21:11:132
249940,0watchdog/28703-21kthreadcore00:36:332
249940,0watchdog/27934-21kthreadcore19:36:322
249940,0watchdog/27554-21tr20:21:322
249940,0watchdog/23054-21kthreadcore23:36:332
249940,0watchdog/229020-21fschecks_time21:01:282
249940,0watchdog/22563-21aten_r1power_en23:56:252
249940,0watchdog/225269-21tail00:46:292
249940,0watchdog/20-21swapper/222:51:332
249940,0watchdog/20-21swapper/222:16:322
179940,0migration/128800-21fschecks_count22:56:281
179940,0migration/123837-21munin-node21:16:351
179940,0migration/122700-21kthreadcore21:36:321
179940,0migration/119992-21aten_r1power_po00:06:261
179940,0migration/118254-21kthreadcore22:11:321
179940,0migration/115445-21kernelversion20:51:301
179940,0migration/113199-21kthreadcore21:31:321
169940,0watchdog/17553-21cut20:21:321
169940,0watchdog/14589-21kthreadcore21:26:321
169940,0watchdog/127909-21cut19:51:321
169940,0watchdog/117377-21munin-node20:31:321
169940,0watchdog/113210-21cut00:36:371
169940,0watchdog/112393-21ssh00:19:091
169940,0watchdog/112275-21ssh23:04:211
169940,0watchdog/11103-21ssh22:21:281
169940,0watchdog/10-21swapper/123:47:491
169940,0watchdog/10-21swapper/122:16:321
169940,0watchdog/10-21swapper/121:06:321
169940,0watchdog/10-21swapper/120:01:321
169940,0watchdog/10-21swapper/100:41:291
149940,0migration/019444-21kthreadcore22:31:320
149940,0migration/014926-21kthreadcore22:46:320
149940,0migration/012077-21kthreadcore20:01:330
132369944,0cyclictest0-21swapper/221:32:552
132369943,0cyclictest4402-21awk21:06:312
132369943,0cyclictest3544-21awk22:41:292
132369943,0cyclictest3524-21snmpd20:41:452
132369943,0cyclictest3524-21snmpd19:51:452
132369943,0cyclictest3250-21irqbalance00:45:002
132369943,0cyclictest3250-21irqbalance00:11:302
132369943,0cyclictest31827-21awk00:31:292
132369943,0cyclictest31247-21awk22:01:302
132369943,0cyclictest27436-21awk23:51:312
132369943,0cyclictest25679-21awk20:36:302
132369943,0cyclictest22309-21awk20:56:292
132369943,0cyclictest11251-21awk20:26:292
132369941,0cyclictest0-21swapper/222:46:252
132359944,0cyclictest0-21swapper/123:51:141
132359944,0cyclictest0-21swapper/122:41:521
132359944,0cyclictest0-21swapper/119:46:241
132359943,0cyclictest7738-21awk20:46:281
132359943,0cyclictest5327-21awk21:46:281
132359943,0cyclictest3571-21lldpd22:36:261
132359943,0cyclictest3571-21lldpd22:07:241
132359943,0cyclictest3571-21lldpd21:51:541
132359943,0cyclictest3571-21lldpd21:41:241
132359943,0cyclictest3571-21lldpd21:41:241
132359943,0cyclictest3571-21lldpd20:59:221
132359943,0cyclictest3571-21lldpd20:27:521
132359943,0cyclictest3571-21lldpd19:36:181
132359943,0cyclictest3571-21lldpd00:13:591
132359943,0cyclictest32588-21awk19:56:271
132359943,0cyclictest3250-21irqbalance23:36:401
132359943,0cyclictest3250-21irqbalance23:31:301
132359943,0cyclictest3250-21irqbalance19:42:391
132359943,0cyclictest3250-21irqbalance19:26:191
132359943,0cyclictest3250-21irqbalance19:22:091
132359943,0cyclictest3250-21irqbalance00:26:201
132359943,0cyclictest3250-21irqbalance00:25:401
132359943,0cyclictest31680-21awk23:16:301
132359943,0cyclictest29362-21awk21:01:301
132359943,0cyclictest22983-21awk23:11:291
132359943,0cyclictest21878-21awk20:11:281
132359943,0cyclictest16557-21awk23:26:301
132359943,0cyclictest14321-21awk23:06:291
132359943,0cyclictest11562-21awk21:11:301
132349944,0cyclictest0-21swapper/023:21:590
132349943,0cyclictest6499-21sadc23:21:130
132349943,0cyclictest5684-21awk23:01:310
132349943,0cyclictest3524-21snmpd22:06:310
132349943,0cyclictest3524-21snmpd00:04:020
132349943,0cyclictest29198-21awk20:16:290
132349943,0cyclictest25482-21awk19:51:300
132349943,0cyclictest22919-21awk23:11:290
132349940,0cyclictest0-21swapper/021:06:230
329930,0watchdog/30-21swapper/320:56:243
329930,0watchdog/30-21swapper/319:46:323
329930,0watchdog/30-21swapper/319:22:083
29815030,0irq/29-eth0-tx-0-21swapper/020:26:250
29815030,0irq/29-eth0-tx-0-21swapper/020:21:250
29805030,0irq/28-eth0-rx-0-21swapper/320:51:253
29805030,0irq/28-eth0-rx-0-21swapper/320:46:243
259930,0migration/229583-21irqstats20:16:302
249930,0watchdog/218048-21perl20:31:282
249930,0watchdog/20-21swapper/221:16:242
169930,0watchdog/10-21swapper/120:41:241
132369932,0cyclictest3524-21snmpd20:12:152
132369932,0cyclictest32603-21awk19:56:272
132369932,0cyclictest18193-21awk19:46:282
132369932,0cyclictest14606-21awk19:21:282
132369930,0cyclictest7854-21iostat20:46:292
132369930,0cyclictest21414-21perl19:26:272
132359933,0cyclictest3571-21lldpd00:31:291
132359932,0cyclictest3250-21irqbalance23:41:201
132359932,0cyclictest29174-21awk20:16:291
132349933,0cyclictest29377-21awk21:01:300
132349933,0cyclictest0-21swapper/023:07:190
132349933,0cyclictest0-21swapper/022:37:500
132349932,0cyclictest7811-21awk20:46:280
132349932,0cyclictest3989-21awk21:46:140
132349932,0cyclictest3989-21awk21:46:140
132349932,0cyclictest2991-21grep22:01:340
132349932,0cyclictest2635-21munin-node19:36:350
132349932,0cyclictest21701-21awk19:26:290
132349932,0cyclictest14524-21awk00:21:290
132349932,0cyclictest11384-21cut22:26:310
132349930,0cyclictest0-21swapper/023:31:330
132349921,0cyclictest28363-21sed00:11:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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