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2026-05-26 - 15:47
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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 all highest latencies:
System rack1slot2.osadl.org (updated Tue May 26, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3143426564,0sleep20-21swapper/207:20:232
31793995959,0cyclictest13444-21md0_resync09:52:011
31792995757,0cyclictest13443-21md1_resync09:52:010
3152223425,0sleep10-21swapper/107:21:221
3150023430,0sleep00-21swapper/007:21:050
3151923026,0sleep30-21swapper/307:21:203
317929988,0cyclictest6425-21sensors09:34:010
8305060,0irq/26-0000:00:6764-21sh11:26:263
8305060,0irq/26-0000:00:6058-21sensors_fan07:24:013
8305060,0irq/26-0000:00:5363-21perl12:03:543
8305060,0irq/26-0000:00:3643-21taskset07:45:593
8305060,0irq/26-0000:00:30496-21sh09:29:583
8305060,0irq/26-0000:00:25025-21munin-node09:08:503
8305060,0irq/26-0000:00:20710-21sendmail_mailqu07:34:013
8305060,0irq/26-0000:00:18542-21ssh11:52:323
8305060,0irq/26-0000:00:11582-21which11:09:003
4160,0ktimersoftd/00-21swapper/010:26:450
339960,0migration/3689-21sh10:44:533
339960,0migration/324267-21munin-node08:23:563
339960,0migration/315978-21kthreadcore09:23:573
317939966,0cyclictest0-21swapper/109:42:441
317939960,0cyclictest0-21swapper/112:29:131
317939960,0cyclictest0-21swapper/112:09:301
317939960,0cyclictest0-21swapper/109:04:441
317929960,0cyclictest0-21swapper/011:15:180
317929960,0cyclictest0-21swapper/010:36:310
29805060,0irq/28-eth0-rx-7281-21ssh09:35:123
29805060,0irq/28-eth0-rx-26538-21chrt11:55:223
29805060,0irq/28-eth0-rx-252882chrt09:45:463
29805060,0irq/28-eth0-rx-19466-21perl12:48:533
29805060,0irq/28-eth0-rx-0-21swapper/311:29:543
19160,0ktimersoftd/10-21swapper/108:53:471
149960,0migration/0938-21sh10:45:280
149960,0migration/015347-21gltestperf07:33:530
149960,0migration/010592-21fschecks_time12:43:530
8305050,0irq/26-0000:00:9848-21ssh12:43:473
8305050,0irq/26-0000:00:9374-21rm10:49:193
8305050,0irq/26-0000:00:8563-21aten_r1power_en08:13:503
8305050,0irq/26-0000:00:7915-21cut08:33:543
8305050,0irq/26-0000:00:7540-21kthreadcore08:53:573
8305050,0irq/26-0000:00:6533-21kthreadcore09:53:563
8305050,0irq/26-0000:00:6314-21runrttasks10:40:453
8305050,0irq/26-0000:00:6314-21runrttasks10:36:533
8305050,0irq/26-0000:00:504-21runrttasks08:05:373
8305050,0irq/26-0000:00:4913-21grep10:28:563
8305050,0irq/26-0000:00:26775-21kthreadcore07:38:573
8305050,0irq/26-0000:00:2580-21ssh11:59:303
8305050,0irq/26-0000:00:24689-21ssh12:33:503
8305050,0irq/26-0000:00:20334-21irqrtprio07:58:563
8305050,0irq/26-0000:00:16654-21munin-node11:33:503
8305050,0irq/26-0000:00:1380-21cpuspeed_turbos08:08:503
8305050,0irq/26-0000:00:13027-21aten_r1power_po08:38:503
8305050,0irq/26-0000:00:12319-21cut09:18:563
8305050,0irq/26-0000:00:11660-21df_inode10:53:533
8305050,0irq/26-0000:00:11179-21kthreadcore09:38:563
8305050,0irq/26-0000:00:0-21swapper/312:13:523
8305050,0irq/26-0000:00:0-21swapper/311:13:423
35150,0ktimersoftd/30-21swapper/310:26:453
339950,0migration/37949-21fschecks_time07:28:523
339950,0migration/34255-21munin-node07:48:503
339950,0migration/329896-21fschecks_count10:08:513
339950,0migration/329847-21if_eth011:03:553
339950,0migration/329477-21kthreadcore08:48:583
339950,0migration/32775-21kthreadcore12:38:553
339950,0migration/320907-21gltestperf10:58:533
339950,0migration/315330-21kthreadcore12:08:563
339950,0migration/314626-21taskset10:18:503
339950,0migration/312793-21kthreadcore12:23:593
339950,0migration/311822-21kthreadcore08:58:563
329950,0watchdog/317782-21kthreadcore12:28:593
317949954,0cyclictest3250-21irqbalance09:13:252
317949954,0cyclictest3250-21irqbalance08:41:252
317949954,0cyclictest22004-21kthreadcore11:33:582
317939955,0cyclictest0-21swapper/111:53:251
317939955,0cyclictest0-21swapper/111:26:561
317939955,0cyclictest0-21swapper/108:15:041
317939955,0cyclictest0-21swapper/107:30:551
317939950,0cyclictest0-21swapper/109:33:441
317939950,0cyclictest0-21swapper/109:23:111
317939950,0cyclictest0-21swapper/108:44:051
317939950,0cyclictest0-21swapper/108:07:021
317929955,0cyclictest0-21swapper/011:44:570
317929955,0cyclictest0-21swapper/011:36:160
317929955,0cyclictest0-21swapper/011:28:240
317929955,0cyclictest0-21swapper/010:09:340
317929955,0cyclictest0-21swapper/010:00:060
317929955,0cyclictest0-21swapper/008:13:510
317929950,0cyclictest0-21swapper/011:07:540
317929950,0cyclictest0-21swapper/009:12:110
317929950,0cyclictest0-21swapper/008:43:100
317929950,0cyclictest0-21swapper/008:25:490
29815050,0irq/29-eth0-tx-5832-21ssh12:20:402
29815050,0irq/29-eth0-tx-4569-21irqrtprio09:53:552
29815050,0irq/29-eth0-tx-32008-21munin-node07:23:530
29815050,0irq/29-eth0-tx-29087-21munin-node07:43:590
29815050,0irq/29-eth0-tx-28721-21munin-node11:03:592
29815050,0irq/29-eth0-tx-2686-21tail08:53:510
29815050,0irq/29-eth0-tx-26048-21munin-node10:43:582
29815050,0irq/29-eth0-tx-19233-21ssh11:53:492
29815050,0irq/29-eth0-tx-17777-21ssh12:47:142
29815050,0irq/29-eth0-tx-14463-21kthreadcore11:48:572
29815050,0irq/29-eth0-tx-0-21swapper/212:51:182
29815050,0irq/29-eth0-tx-0-21swapper/212:14:072
29815050,0irq/29-eth0-tx-0-21swapper/209:43:442
29815050,0irq/29-eth0-tx-0-21swapper/009:24:040
29815050,0irq/29-eth0-tx-0-21swapper/009:19:450
29815050,0irq/29-eth0-tx-0-21swapper/008:34:450
29805050,0irq/28-eth0-rx-5413-21grep09:13:583
29805050,0irq/28-eth0-rx-32198-21ssh11:39:153
29805050,0irq/28-eth0-rx-32008-21grep12:18:583
29805050,0irq/28-eth0-rx-0-21swapper/311:46:263
29805050,0irq/28-eth0-rx-0-21swapper/311:18:583
29805050,0irq/28-eth0-rx-0-21swapper/310:03:513
29805050,0irq/28-eth0-rx-0-21swapper/309:58:553
29805050,0irq/28-eth0-rx-0-21swapper/309:51:073
29805050,0irq/28-eth0-rx-0-21swapper/309:03:563
29805050,0irq/28-eth0-rx-0-21swapper/308:28:523
27150,0ktimersoftd/20-21swapper/210:26:452
259950,0migration/29749-21kthreadcore11:28:572
259950,0migration/232090-21fschecks_time11:23:532
259950,0migration/231568-21idleruntime08:28:532
259950,0migration/224787-21sh09:28:562
259950,0migration/219839-21kthreadcore10:38:562
259950,0migration/217210-21kthreadcore10:18:582
249950,0watchdog/27892-21grep11:43:582
249950,0watchdog/228021-21kthreadcore11:18:582
249950,0watchdog/221004-21cut10:03:502
249950,0watchdog/219401-21ntp_kernel_pll_12:08:592
249950,0watchdog/218034-21users10:54:062
249950,0watchdog/217781-21kthreadcore12:28:592
249950,0watchdog/2123922sleep208:35:262
19150,0ktimersoftd/10-21swapper/110:44:511
19150,0ktimersoftd/10-21swapper/110:26:451
179950,0migration/16573-21taskset07:25:441
179950,0migration/14095-21kthreadcore12:38:551
179950,0migration/13515-21taskset07:44:421
179950,0migration/125636-21munin-node09:08:521
179950,0migration/124235-21sh09:28:531
179950,0migration/118131-21netstat09:58:581
179950,0migration/113627-21sendmail_mailst12:24:021
179950,0migration/110407-21sh09:55:141
149950,0migration/07905-21taskset08:09:270
149950,0migration/031226-21fschecks_time08:28:520
149950,0migration/029030-21kthreadcore12:33:580
149950,0migration/028678-21latency11:18:590
149950,0migration/028152-21ksmtuned10:05:570
149950,0migration/024436-21sh09:28:550
149950,0migration/020711-21irqrtprio11:53:570
149950,0migration/018678-21sh12:48:510
149950,0migration/017597-21kthreadcore08:18:590
149950,0migration/017236-21sh09:43:000
149950,0migration/016460-21kthreadcore10:53:580
149950,0migration/014258-21rt-features11:29:020
149950,0migration/013663-21smart_sda12:24:030
149950,0migration/013579-21kthreadcore08:58:570
149950,0migration/013509-21timerandwakeup07:29:030
149950,0migration/013468-21kthreadcore07:53:550
149950,0migration/013458-21taskset11:13:070
149950,0migration/011332-21latency_hist07:53:380
149950,0migration/010229-21sh09:54:450
8305040,0irq/26-0000:00:5807-21ssh10:13:423
339940,0migration/324741-21kthreadcore08:43:563
339940,0migration/313383-21kthreadcore07:53:553
329940,0watchdog/316068-21cpu08:18:543
317949943,0cyclictest721-21awk07:23:542
317949943,0cyclictest507-21awk09:13:542
317949943,0cyclictest3571-21lldpd12:38:462
317949943,0cyclictest3571-21lldpd09:06:152
317949943,0cyclictest3571-21lldpd09:01:142
317949943,0cyclictest3571-21lldpd08:08:442
317949943,0cyclictest3571-21lldpd08:04:442
317949943,0cyclictest3571-21lldpd07:56:152
317949943,0cyclictest3571-21lldpd07:39:142
317949943,0cyclictest3524-21snmpd08:27:412
317949943,0cyclictest3250-21irqbalance12:33:562
317949943,0cyclictest3250-21irqbalance11:13:462
317949943,0cyclictest3250-21irqbalance11:08:462
317949943,0cyclictest3250-21irqbalance09:48:552
317949943,0cyclictest3250-21irqbalance08:53:452
317949943,0cyclictest3250-21irqbalance08:48:452
317949943,0cyclictest3250-21irqbalance08:44:552
317939944,0cyclictest0-21swapper/112:47:301
317939944,0cyclictest0-21swapper/112:20:421
317939944,0cyclictest0-21swapper/111:59:251
317939944,0cyclictest0-21swapper/111:40:301
317939944,0cyclictest0-21swapper/107:48:441
317939943,0cyclictest8942-21awk11:28:551
317939943,0cyclictest5592-21awk12:03:561
317939943,0cyclictest3571-21lldpd10:29:451
317939943,0cyclictest3524-21snmpd10:13:421
317939943,0cyclictest31595-21awk08:28:531
317939943,0cyclictest25751-21awk12:33:551
317939943,0cyclictest17045-21awk08:18:581
317939943,0cyclictest15477-21awk09:23:551
317939943,0cyclictest15112-21awk11:13:561
317939943,0cyclictest12562-21awk07:53:531
317929944,0cyclictest0-21swapper/012:38:420
317929944,0cyclictest0-21swapper/012:01:390
317929944,0cyclictest0-21swapper/011:02:230
317929944,0cyclictest0-21swapper/010:20:360
317929943,0cyclictest749-21awk10:28:540
317929943,0cyclictest22780-21awk07:38:540
317929943,0cyclictest19890-21awk07:58:550
317929943,0cyclictest17145-21awk12:28:570
317929943,0cyclictest10946-21sadc10:53:400
29815040,0irq/29-eth0-tx-30250-21cut10:08:522
29815040,0irq/29-eth0-tx-0-21swapper/212:04:182
29815040,0irq/29-eth0-tx-0-21swapper/212:00:032
29815040,0irq/29-eth0-tx-0-21swapper/211:38:452
29815040,0irq/29-eth0-tx-0-21swapper/210:48:582
29815040,0irq/29-eth0-tx-0-21swapper/210:33:542
29815040,0irq/29-eth0-tx-0-21swapper/210:28:462
29815040,0irq/29-eth0-tx-0-21swapper/209:38:552
29815040,0irq/29-eth0-tx-0-21swapper/209:33:562
29815040,0irq/29-eth0-tx-0-21swapper/009:17:150
259940,0migration/28464-21irqrtprio09:18:542
259940,0migration/28391-21kthreadcore10:13:572
259940,0migration/232562-21kthreadcore07:43:572
259940,0migration/218850-21aten_r1power_cu07:58:512
259940,0migration/218818-21kthreadcore09:23:572
259940,0migration/217829-21kthreadcore08:18:592
259940,0migration/212802-21fschecks_time09:58:522
249940,0watchdog/25161-21if_err_eth107:48:542
249940,0watchdog/219313-21grep07:33:582
249940,0watchdog/20-21swapper/212:23:592
249940,0watchdog/20-21swapper/210:58:502
179940,0migration/14277-21kthreadcore09:13:571
179940,0migration/13512-21munin-node10:09:011
179940,0migration/131443-21kthreadcore08:48:581
179940,0migration/127190-21kthreadcore07:38:571
179940,0migration/126900-21kthreadcore11:18:581
179940,0migration/123985-21munin-node09:43:591
179940,0migration/123466-21cpuspeed_turbos08:23:521
179940,0migration/122081-21kthreadcore10:58:571
179940,0migration/114187-21kthreadcore08:58:571
169940,0watchdog/17891-21needreboot11:43:581
169940,0watchdog/16072-21fschecks_count08:33:501
169940,0watchdog/126471-21ssh11:55:111
169940,0watchdog/125564-21kthreadcore12:13:591
169940,0watchdog/124811-21netstat12:48:591
169940,0watchdog/123333-21kthreadcore07:58:581
169940,0watchdog/121003-21tr10:03:501
169940,0watchdog/111370-21munin-node11:08:581
169940,0watchdog/10-21swapper/110:40:301
169940,0watchdog/10-21swapper/110:35:221
169940,0watchdog/10-21swapper/110:18:581
149940,0migration/028089-21fschecks_count08:48:530
149940,0migration/027256-21runrttasks08:47:480
149940,0migration/026170-21aten_r1power_cu08:03:490
317939932,0cyclictest1859-21grep11:03:581
317929933,0cyclictest4135-21kworker/0:010:13:560
317929933,0cyclictest0-21swapper/012:15:410
317929932,0cyclictest6955-21sadc12:23:390
317929932,0cyclictest30291-21grep11:38:570
317929932,0cyclictest24231-21sensors09:44:020
317929932,0cyclictest23718-21sensors10:39:000
317929932,0cyclictest18963-21sadc11:53:400
317929932,0cyclictest14180-21cut12:08:520
317929930,0cyclictest3524-21snmpd09:07:410
259930,0migration/29228-21kthreadcore07:28:552
249930,0watchdog/20-21swapper/208:13:582
179930,0migration/113968-21kthreadcore10:53:581
169930,0watchdog/13285-21fschecks_time10:48:541
169930,0watchdog/10-21swapper/111:33:541
169930,0watchdog/10-21swapper/108:38:501
169930,0watchdog/10-21swapper/108:08:501
169930,0watchdog/10-21swapper/107:33:541
12784230,0sleep00-21swapper/012:08:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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