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2026-03-10 - 23:58
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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 Tue Mar 10, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3240426160,0sleep20-21swapper/207:16:162
32564995454,0cyclictest23332-21md1_resync11:49:470
2540624837,0sleep00-21swapper/007:12:210
3248224635,0sleep30-21swapper/307:17:093
32566993737,0cyclictest83050irq/26-0000:00:11:49:472
3246423526,0sleep10-21swapper/107:16:551
32565991918,0cyclictest14718-21diskmemload11:49:471
339970,0migration/39028-21sh10:26:043
8305060,0irq/26-0000:00:6783-21python07:17:393
8305060,0irq/26-0000:00:3692-21crond09:47:172
8305060,0irq/26-0000:00:29580-21grep07:37:173
8305060,0irq/26-0000:00:28605-21df_inode08:42:313
8305060,0irq/26-0000:00:19023-21diskstats11:27:322
8305060,0irq/26-0000:00:18039-21kernelversion08:12:353
339960,0migration/329311-21sh11:50:353
339960,0migration/317306-21kthreadcore09:52:333
339960,0migration/316834-21sh11:23:153
339960,0migration/311619-21sh10:45:133
339960,0migration/311420-21sh12:35:183
325669960,0cyclictest0-21swapper/211:57:202
325669960,0cyclictest0-21swapper/210:53:582
325669960,0cyclictest0-21swapper/210:20:422
325669960,0cyclictest0-21swapper/208:43:162
325659966,0cyclictest0-21swapper/111:11:041
325659966,0cyclictest0-21swapper/109:17:521
325659966,0cyclictest0-21swapper/108:57:321
325649960,0cyclictest0-21swapper/009:54:000
29805060,0irq/28-eth0-rx-4926-21grep11:17:353
29805060,0irq/28-eth0-rx-4427-21cut12:12:373
29805060,0irq/28-eth0-rx-26882-21crond12:27:173
29805060,0irq/28-eth0-rx-20792-21cut11:27:373
29805060,0irq/28-eth0-rx-19611-21ssh10:47:553
29805060,0irq/28-eth0-rx-13531-21munin-node09:12:363
29805060,0irq/28-eth0-rx-0-21swapper/312:31:413
29805060,0irq/28-eth0-rx-0-21swapper/312:02:223
19160,0ktimersoftd/12629-21perl08:02:311
149960,0migration/06734-21sh11:02:210
149960,0migration/032139-21sh10:19:530
149960,0migration/031417-21sh12:08:410
149960,0migration/030373-21kthreadcore08:42:360
149960,0migration/027622-21latency09:57:350
149960,0migration/024145-21sh10:17:070
149960,0migration/01205-21munin-node09:27:310
8305050,0irq/26-0000:00:8006-21ssh10:07:342
8305050,0irq/26-0000:00:7913-21ntp_kernel_pll_08:02:373
8305050,0irq/26-0000:00:543-21sh12:12:282
8305050,0irq/26-0000:00:492-21munin-node09:27:292
8305050,0irq/26-0000:00:31142-21sed07:37:343
8305050,0irq/26-0000:00:31014-21kthreadcore11:32:362
8305050,0irq/26-0000:00:30905-21crond08:27:123
8305050,0irq/26-0000:00:30693-21python12:07:412
8305050,0irq/26-0000:00:30682-21grep11:52:322
8305050,0irq/26-0000:00:29538-21cat12:27:352
8305050,0irq/26-0000:00:28863-21sed10:37:332
8305050,0irq/26-0000:00:26957-21ntp_kernel_pll_08:37:363
8305050,0irq/26-0000:00:24963-21latency_hist09:02:173
8305050,0irq/26-0000:00:23695-21aten_r1power_cu09:22:272
8305050,0irq/26-0000:00:22197-21python10:12:402
8305050,0irq/26-0000:00:21842-21cut07:52:353
8305050,0irq/26-0000:00:20665-21kthreadcore12:02:342
8305050,0irq/26-0000:00:20320-21ssh11:45:002
8305050,0irq/26-0000:00:19868-21ssh09:53:192
8305050,0irq/26-0000:00:17333-21ssh11:24:372
8305050,0irq/26-0000:00:17023-21cat07:27:333
8305050,0irq/26-0000:00:1373-21cut09:07:333
8305050,0irq/26-0000:00:10756-21cut11:02:372
8305050,0irq/26-0000:00:10285-21ntp_kernel_pll_09:47:382
8305050,0irq/26-0000:00:10022-21head11:37:372
8305050,0irq/26-0000:00:0-21swapper/308:57:313
8305050,0irq/26-0000:00:0-21swapper/308:32:323
8305050,0irq/26-0000:00:0-21swapper/308:07:293
8305050,0irq/26-0000:00:0-21swapper/307:57:293
8305050,0irq/26-0000:00:0-21swapper/307:42:173
339950,0migration/38995-21sh07:22:353
339950,0migration/38305-21kthreadcore09:47:363
339950,0migration/35112-21taskset10:03:113
339950,0migration/330184-21latency_hist10:57:183
339950,0migration/327427-21sh09:42:213
339950,0migration/324901-21ksmtuned10:17:313
339950,0migration/321641-21kthreadcore09:37:343
339950,0migration/320397-21kthreadcore09:17:353
339950,0migration/316891-21kthreadcore12:37:363
339950,0migration/315955-21cpuspeed_turbos10:12:303
339950,0migration/315145-21kthreadcore11:42:363
339950,0migration/314518-21kthreadcore07:47:333
339950,0migration/313954-21taskset11:03:353
339950,0migration/310183-21taskset08:50:393
325669955,0cyclictest0-21swapper/212:46:322
325669955,0cyclictest0-21swapper/212:40:042
325659955,0cyclictest0-21swapper/110:25:401
325659955,0cyclictest0-21swapper/110:04:131
325659955,0cyclictest0-21swapper/109:34:541
325659955,0cyclictest0-21swapper/109:09:501
325659950,0cyclictest0-21swapper/110:44:071
325659950,0cyclictest0-21swapper/110:33:331
325659950,0cyclictest0-21swapper/108:25:411
325649955,0cyclictest0-21swapper/010:07:240
325649950,0cyclictest0-21swapper/011:41:220
325649950,0cyclictest0-21swapper/009:10:010
329950,0watchdog/327217-21cat12:42:373
329950,0watchdog/3239392chrt11:11:373
329950,0watchdog/316372-21ssh09:32:443
329950,0watchdog/311713-21kthreadcore10:27:333
29815050,0irq/29-eth0-tx-7797-21munin-node07:22:420
29815050,0irq/29-eth0-tx-3800-21munin-node10:42:332
29815050,0irq/29-eth0-tx-22474-21munin-node07:32:400
29815050,0irq/29-eth0-tx-15129-21munin-node07:27:370
29815050,0irq/29-eth0-tx-0-21swapper/210:57:292
29815050,0irq/29-eth0-tx-0-21swapper/210:28:012
29815050,0irq/29-eth0-tx-0-21swapper/009:17:580
29815050,0irq/29-eth0-tx-0-21swapper/009:02:340
29805050,0irq/28-eth0-rx-8252-21cut08:27:343
29805050,0irq/28-eth0-rx-26213-21cut11:12:353
29805050,0irq/28-eth0-rx-25498-21irqcore12:07:333
29805050,0irq/28-eth0-rx-13586-21unixbench-2d10:07:443
29805050,0irq/28-eth0-rx-11501-21kthreadcore12:17:353
29805050,0irq/28-eth0-rx-0-21swapper/312:01:363
29805050,0irq/28-eth0-rx-0-21swapper/311:37:263
29805050,0irq/28-eth0-rx-0-21swapper/311:33:453
29805050,0irq/28-eth0-rx-0-21swapper/310:52:373
29805050,0irq/28-eth0-rx-0-21swapper/310:37:293
29805050,0irq/28-eth0-rx-0-21swapper/309:57:333
29805050,0irq/28-eth0-rx-0-21swapper/309:30:493
29805050,0irq/28-eth0-rx-0-21swapper/309:26:143
259950,0migration/224875-21munin-node09:37:382
259950,0migration/216459-21fschecks_time11:07:322
249950,0watchdog/223019-21cut12:22:372
249950,0watchdog/20-21swapper/211:12:372
19150,0ktimersoftd/10-21swapper/112:21:421
179950,0migration/18982-21kthreadcore11:57:351
179950,0migration/18432-21irqrtprio10:07:351
179950,0migration/130973-21fschecks_time11:52:321
179950,0migration/128371-21unixbench_singl09:57:421
179950,0migration/127471-21munin-node10:37:291
179950,0migration/124710-21pmu-power12:22:401
179950,0migration/123298-21kthreadcore10:52:371
179950,0migration/11889-21unixbench_multi09:42:441
179950,0migration/118739-21kthreadcore10:12:351
179950,0migration/11788-21if_eth1.212:12:351
179950,0migration/114431-21kthreadcore11:22:351
179950,0migration/112175-21kthreadcore08:52:361
179950,0migration/110112-21sendmail_mailqu12:32:391
169950,0watchdog/130724-21needreboot11:12:371
149950,0migration/09857-21fschecks_time08:07:310
149950,0migration/07581-21latency_hist09:12:170
149950,0migration/06695-21kthreadcore12:32:350
149950,0migration/05766-21gltestperf07:42:320
149950,0migration/04410-21kthreadcore08:02:340
149950,0migration/031105-21kthreadcore12:27:350
149950,0migration/028175-21kthreadcore11:12:350
149950,0migration/026774-21kthreadcore09:22:330
149950,0migration/026189-21kthreadcore12:42:370
149950,0migration/024399-21kthreadcore10:52:370
149950,0migration/023002-21kthreadcore11:27:380
149950,0migration/022134-21kthreadcore12:22:370
149950,0migration/020988-21kthreadcore10:32:350
149950,0migration/02090-21sh11:17:330
149950,0migration/019920-21kthreadcore11:07:360
149950,0migration/019618-21taskset10:47:570
149950,0migration/018626-21fschecks_time08:57:310
149950,0migration/017741-21latency_hist08:57:170
149950,0migration/017457-21kthreadcore07:47:340
149950,0migration/017420-21gltestperf08:12:320
149950,0migration/014332-21kthreadcore10:27:330
149950,0migration/011766-21kthreadcore12:17:350
149950,0migration/01150-21cpuspeed_turbos10:22:270
149950,0migration/01101-21kthreadcore09:42:370
8305040,0irq/26-0000:00:0-21swapper/308:53:273
8305040,0irq/26-0000:00:0-21swapper/212:32:362
8305040,0irq/26-0000:00:0-21swapper/210:02:342
8305040,0irq/26-0000:00:0-21swapper/209:57:342
4140,0ktimersoftd/015412-1kworker/0:1H12:05:240
325669943,0cyclictest3571-21lldpd08:58:052
325669943,0cyclictest3524-21snmpd12:17:382
325669943,0cyclictest3250-21irqbalance08:32:342
325669943,0cyclictest3250-21irqbalance08:27:242
325669943,0cyclictest3250-21irqbalance08:12:232
325669943,0cyclictest3250-21irqbalance08:08:032
325669942,0cyclictest0-21swapper/209:32:302
325659944,0cyclictest0-21swapper/111:46:141
325659944,0cyclictest0-21swapper/109:28:361
325659943,0cyclictest5051-21awk09:47:331
325659943,0cyclictest29365-21awk08:42:341
325659943,0cyclictest26268-21awk09:02:331
325659943,0cyclictest10191-21awk08:07:321
325649944,0cyclictest0-21swapper/009:47:420
325649943,0cyclictest3571-21lldpd11:55:130
325649943,0cyclictest32254-21awk08:22:320
325649943,0cyclictest28494-21awk10:37:320
325649943,0cyclictest26833-21ssh09:41:240
325649943,0cyclictest10576-21awk09:32:330
329940,0watchdog/30-21swapper/311:52:293
329940,0watchdog/30-21swapper/308:17:283
29815040,0irq/29-eth0-tx-0-21swapper/211:17:252
29815040,0irq/29-eth0-tx-0-21swapper/210:32:292
29815040,0irq/29-eth0-tx-0-21swapper/210:22:292
29815040,0irq/29-eth0-tx-0-21swapper/209:18:492
29815040,0irq/29-eth0-tx-0-21swapper/008:37:350
29805040,0irq/28-eth0-rx-0-21swapper/310:33:373
259940,0migration/26369-21kthreadcore08:02:352
259940,0migration/22937-21kthreadcore08:22:352
259940,0migration/228087-21irqcore07:57:322
259940,0migration/226804-21kthreadcore08:17:352
259940,0migration/226460-21runrttasks07:56:092
259940,0migration/225989-21kthreadcore08:37:342
259940,0migration/224583-21kthreadcore07:32:352
259940,0migration/221050-21latency07:27:342
259940,0migration/212823-21fschecks_time07:47:292
249940,0watchdog/232538-21munin-node09:07:282
249940,0watchdog/230957-21kthreadcore09:02:362
249940,0watchdog/20-21swapper/210:47:372
249940,0watchdog/20-21swapper/209:12:322
249940,0watchdog/20-21swapper/208:52:362
249940,0watchdog/20-21swapper/207:37:362
249940,0watchdog/20-21swapper/207:22:362
249940,0watchdog/20-21swapper/207:17:362
19140,0ktimersoftd/12733-21sh12:30:471
179940,0migration/19673-21kthreadcore07:42:371
179940,0migration/18959-21kthreadcore11:02:361
179940,0migration/13749-21munin-node07:37:391
179940,0migration/129744-21kthreadcore07:57:331
179940,0migration/12621-21kthreadcore07:17:341
179940,0migration/125942-21irqrtprio10:17:351
179940,0migration/124735-21fschecks_count12:07:301
179940,0migration/123574-21kthreadcore09:37:351
179940,0migration/119426-21latency08:32:371
179940,0migration/118343-21kthreadcore07:27:341
179940,0migration/116890-21df_abs08:12:311
179940,0migration/112975-21kthreadcore10:27:331
169940,0watchdog/19741-21grep07:22:361
169940,0watchdog/12738-21ssh11:35:051
169940,0watchdog/121191-21ssh11:27:371
169940,0watchdog/121169-21aten2.4-expect12:42:291
169940,0watchdog/120069-21ssh10:49:131
169940,0watchdog/115452-21munin-node12:02:331
169940,0watchdog/10-21swapper/109:52:281
169940,0watchdog/10-21swapper/108:17:281
149940,0migration/07468-21fschecks_time11:57:310
149940,0migration/07347-21switchtime12:12:440
149940,0migration/015605-21kthreadcore11:42:360
149940,0migration/010781-21hwlatdetect11:22:320
325669932,0cyclictest4236-21awk08:47:312
325659932,0cyclictest3899-21stty11:37:281
325659932,0cyclictest25792-21sensors07:52:391
325659932,0cyclictest22020-21awk08:37:321
325659932,0cyclictest15576-21grep07:47:331
325659932,0cyclictest13937-21sensors09:12:391
325659930,0cyclictest3996-21perl08:47:301
325649932,0cyclictest3675-21sed10:42:180
325649932,0cyclictest32109-21grep10:57:330
325649932,0cyclictest3150-21munin-node08:47:370
325649932,0cyclictest27330-21ssh11:32:200
325649932,0cyclictest27130-21kthreadcore08:17:350
325649932,0cyclictest25361-21cat07:52:360
325649932,0cyclictest14718-21diskmemload10:04:080
325649932,0cyclictest14613-21awk08:32:340
325649932,0cyclictest13480-21awk12:37:330
325649930,0cyclictest29793-21munin-node07:37:360
325649930,0cyclictest12531-21python08:27:400
325649930,0cyclictest0-21swapper/007:17:300
29815030,0irq/29-eth0-tx-0-21swapper/007:57:270
259930,0migration/28235-21kthreadcore07:42:372
179930,0migration/15233-21kthreadcore11:17:351
169930,0watchdog/11999-21md0_raid108:28:281
169930,0watchdog/10-21swapper/112:38:251
169930,0watchdog/10-21swapper/110:58:411
169930,0watchdog/10-21swapper/109:22:321
169920,0watchdog/10-21swapper/107:32:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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