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2026-09-01 - 23:03
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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 Sep 01, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1890527069,0sleep10-21swapper/107:29:561
19124995353,0cyclictest5809-21md0_resync09:28:042
19123994343,0cyclictest5808-21md1_resync09:28:041
1890624230,0sleep20-21swapper/207:29:572
1901524131,0sleep30-21swapper/307:31:113
1895623026,0sleep00-21swapper/007:30:310
19124991212,0cyclictest83050irq/26-0000:00:11:13:102
19124991010,0cyclictest83050irq/26-0000:00:11:17:152
19124991010,0cyclictest83050irq/26-0000:00:10:41:562
191249999,0cyclictest83050irq/26-0000:00:11:48:182
191249988,0cyclictest83050irq/26-0000:00:10:11:092
339970,0migration/313382-21sh12:06:153
191239976,0cyclictest0-21swapper/109:54:081
8305060,0irq/26-0000:00:7479-21ssh11:23:262
8305060,0irq/26-0000:00:6983-21perl08:06:543
8305060,0irq/26-0000:00:4138-21cut08:26:533
8305060,0irq/26-0000:00:3038-21munin-run08:26:393
8305060,0irq/26-0000:00:24671-21perl07:56:553
8305060,0irq/26-0000:00:16396-21iostat_ios08:56:593
8305060,0irq/26-0000:00:11393-21grep08:51:593
8305060,0irq/26-0000:00:10291-21diskstats10:31:542
8305060,0irq/26-0000:00:0-21swapper/309:08:333
339960,0migration/37501-21latency_hist12:21:413
339960,0migration/34753-21sh11:03:093
339960,0migration/328126-21sh11:55:513
339960,0migration/321127-21sh09:58:573
29815060,0irq/29-eth0-tx-1351-21munin-node12:37:072
29805060,0irq/28-eth0-rx-21636-21cut10:36:583
29805060,0irq/28-eth0-rx-1953-21df_abs07:41:543
29805060,0irq/28-eth0-rx-0-21swapper/309:52:483
191229966,0cyclictest0-21swapper/012:45:190
19160,0ktimersoftd/10-21swapper/109:21:591
8305050,0irq/26-0000:00:9713-21perl11:26:562
8305050,0irq/26-0000:00:5778-21tune2fs12:01:552
8305050,0irq/26-0000:00:5435-21kthreadcore09:31:583
8305050,0irq/26-0000:00:32211-21ssh10:23:472
8305050,0irq/26-0000:00:29833-21ssh11:01:462
8305050,0irq/26-0000:00:29549-21interrupts09:46:572
8305050,0irq/26-0000:00:2938-21diskstats11:41:542
8305050,0irq/26-0000:00:29366-21yum12:12:082
8305050,0irq/26-0000:00:28840-21basename11:56:542
8305050,0irq/26-0000:00:27812-21fschecks_time09:26:563
8305050,0irq/26-0000:00:25302-21ssh12:31:542
8305050,0irq/26-0000:00:21144-21sh12:08:442
8305050,0irq/26-0000:00:19792-21iostat_ios10:36:572
8305050,0irq/26-0000:00:19636-21kthreadcore08:37:003
8305050,0irq/26-0000:00:19445-21perl12:46:542
8305050,0irq/26-0000:00:19253-21kthreadcore09:57:002
8305050,0irq/26-0000:00:18919-21python10:52:052
8305050,0irq/26-0000:00:17081-21fschecks_time12:26:562
8305050,0irq/26-0000:00:15531-21ssh12:25:142
8305050,0irq/26-0000:00:14764-21sed08:11:573
8305050,0irq/26-0000:00:13696-21kthreadcore12:41:572
8305050,0irq/26-0000:00:11315-21fschecks_count09:36:542
8305050,0irq/26-0000:00:10063-21ntp_states12:57:022
8305050,0irq/26-0000:00:0-21swapper/309:11:583
8305050,0irq/26-0000:00:0-21swapper/212:51:532
4150,0ktimersoftd/00-21swapper/012:28:270
339950,0migration/38786-21kthreadcore12:56:593
339950,0migration/37458-21runrttasks08:50:143
339950,0migration/37290-21diskmemload11:22:543
339950,0migration/35845-21kthreadcore11:41:593
339950,0migration/35159-21kthreadcore10:26:593
339950,0migration/33373-21kthreadcore08:01:573
339950,0migration/328435-21idleruntime12:51:573
339950,0migration/32665-21sh10:44:433
339950,0migration/325298-21munin-node12:31:543
339950,0migration/322194-21kthreadcore09:21:563
339950,0migration/318581-21idleruntime11:31:573
339950,0migration/316796-21fschecks_time10:16:533
339950,0migration/313923-21kthreadcore09:16:583
339950,0migration/313363-21munin-node10:51:553
339950,0migration/311788-21kthreadcore11:06:583
339950,0migration/311507-21cpuspeed_turbos11:46:523
329950,0watchdog/38031-21kthreadcore10:46:593
329950,0watchdog/331837-21kthreadcore07:36:593
329950,0watchdog/329213-21sh10:02:153
329950,0watchdog/328994-21ssh12:12:043
329950,0watchdog/315002-21grep07:46:593
329950,0watchdog/310558-21rm12:41:523
329950,0watchdog/30-21swapper/309:01:513
29815050,0irq/29-eth0-tx-6249-21munin-node11:06:552
29815050,0irq/29-eth0-tx-22538-21munin-node09:02:000
29815050,0irq/29-eth0-tx-20930-21munin-node08:17:040
29815050,0irq/29-eth0-tx-19553-21munin-node09:41:572
29815050,0irq/29-eth0-tx-16452-21munin-node07:52:030
29815050,0irq/29-eth0-tx-0-21swapper/211:32:002
29815050,0irq/29-eth0-tx-0-21swapper/211:01:212
29815050,0irq/29-eth0-tx-0-21swapper/210:30:212
29815050,0irq/29-eth0-tx-0-21swapper/009:21:570
29815050,0irq/29-eth0-tx-0-21swapper/008:12:010
29805050,0irq/28-eth0-rx-8942-21aten2.4-expect11:26:533
29805050,0irq/28-eth0-rx-7084-21ssh12:21:043
29805050,0irq/28-eth0-rx-32519-21irqrtprio10:06:583
29805050,0irq/28-eth0-rx-2769-21irqcore12:36:583
29805050,0irq/28-eth0-rx-20002-21forks09:41:553
29805050,0irq/28-eth0-rx-17699-21irqcore12:26:593
29805050,0irq/28-eth0-rx-10290-21diskstats10:31:543
29805050,0irq/28-eth0-rx-0-21swapper/311:16:453
29805050,0irq/28-eth0-rx-0-21swapper/310:56:543
29805050,0irq/28-eth0-rx-0-21swapper/310:12:303
29805050,0irq/28-eth0-rx-0-21swapper/309:50:003
29805050,0irq/28-eth0-rx-0-21swapper/309:38:213
259950,0migration/29288-21latency08:26:592
259950,0migration/26501-21kernelversion09:51:572
259950,0migration/25380-21kthreadcore10:46:592
259950,0migration/223801-21aten_r1power_cu07:56:522
259950,0migration/222266-21latency_hist10:01:412
259950,0migration/22021-21sh11:41:112
259950,0migration/217745-21irqcore07:51:572
249950,0watchdog/20-21swapper/208:11:592
191239955,0cyclictest0-21swapper/112:37:191
191239955,0cyclictest0-21swapper/112:04:501
191239950,0cyclictest0-21swapper/112:36:031
191239950,0cyclictest0-21swapper/109:36:381
191239950,0cyclictest0-21swapper/108:27:161
191239950,0cyclictest0-21swapper/108:22:041
191229955,0cyclictest1999-21md0_raid111:54:420
191229955,0cyclictest0-21swapper/010:19:480
191229955,0cyclictest0-21swapper/008:39:120
179950,0migration/16322-21aten_r1power_fr11:06:511
179950,0migration/131670-21fschecks_count08:01:531
179950,0migration/126637-21sh09:42:421
169950,0watchdog/120227-21munin-node12:07:041
169950,0watchdog/115519-21cat11:27:081
169950,0watchdog/110725-21kthreadcore09:11:591
149950,0migration/07796-21sh12:37:020
149950,0migration/032152-21latency_hist11:21:400
149950,0migration/026287-21fschecks_time08:41:540
149950,0migration/018942-21kthreadcore08:57:000
149950,0migration/017108-21kthreadcore11:46:590
149950,0migration/016585-21kthreadcore08:31:580
149950,0migration/014369-21unixbench_multi12:22:070
149950,0migration/014351-21timerwakeupswit08:52:070
8305040,0irq/26-0000:00:26228-21netstat11:52:012
8305040,0irq/26-0000:00:0-21swapper/307:51:523
8305040,0irq/26-0000:00:0-21swapper/212:16:422
339940,0migration/328235-21kthreadcore08:41:573
339940,0migration/326851-21sh12:50:543
339940,0migration/317023-21kthreadcore11:11:583
329940,0watchdog/318456-21kthreadcore12:07:003
329940,0watchdog/30-21swapper/311:57:003
29815040,0irq/29-eth0-tx-0-21swapper/210:16:582
29815040,0irq/29-eth0-tx-0-21swapper/009:12:050
29815040,0irq/29-eth0-tx-0-21swapper/008:46:580
29805040,0irq/28-eth0-rx-0-21swapper/311:36:533
29805040,0irq/28-eth0-rx-0-21swapper/310:22:063
29805040,0irq/28-eth0-rx-0-21swapper/308:33:563
29805040,0irq/28-eth0-rx-0-21swapper/308:16:523
259940,0migration/29847-21kthreadcore09:11:592
259940,0migration/29155-21kthreadcore10:11:592
259940,0migration/27911-21kthreadcore08:06:592
259940,0migration/27082-21kthreadcore07:42:002
259940,0migration/227291-21smart_sda08:17:012
259940,0migration/225306-21latency_hist08:41:402
259940,0migration/218708-21timerwakeupswit09:17:072
259940,0migration/21229-21runrttasks07:40:112
249940,0watchdog/231965-21kthreadcore08:21:592
249940,0watchdog/215003-21latency07:46:592
191249943,0cyclictest3571-21lldpd09:24:062
191249943,0cyclictest3524-21snmpd08:36:032
191249943,0cyclictest3524-21snmpd07:31:472
191249943,0cyclictest2979-21awk09:31:552
191249943,0cyclictest23618-21awk09:01:562
191239943,0cyclictest4748-21awk10:46:561
191239943,0cyclictest3571-21lldpd10:17:361
191239943,0cyclictest3571-21lldpd08:53:361
191239943,0cyclictest3524-21snmpd11:16:041
191239943,0cyclictest3524-21snmpd10:30:341
191239943,0cyclictest3524-21snmpd09:40:181
191239943,0cyclictest3250-21irqbalance12:42:071
191239943,0cyclictest3250-21irqbalance12:26:571
191239943,0cyclictest3250-21irqbalance11:57:271
191239943,0cyclictest3250-21irqbalance11:51:571
191239943,0cyclictest3250-21irqbalance11:47:271
191239943,0cyclictest3250-21irqbalance11:22:371
191239943,0cyclictest3250-21irqbalance10:31:571
191239943,0cyclictest3250-21irqbalance08:41:561
191239943,0cyclictest32163-21awk10:06:571
191239943,0cyclictest14649-21awk08:11:561
191239943,0cyclictest11823-21awk08:31:551
191239940,0cyclictest0-21swapper/111:00:311
191229944,0cyclictest0-21swapper/007:41:590
191229943,0cyclictest9067-21munin-node07:46:520
191229943,0cyclictest6128-21awk12:01:570
191229943,0cyclictest3250-21irqbalance12:32:370
191229943,0cyclictest3250-21irqbalance12:11:070
191229943,0cyclictest3250-21irqbalance10:46:470
191229943,0cyclictest3250-21irqbalance10:46:070
191229943,0cyclictest3250-21irqbalance10:27:470
191229943,0cyclictest3250-21irqbalance10:13:370
191229943,0cyclictest3250-21irqbalance09:16:460
191229943,0cyclictest3250-21irqbalance08:22:260
191229943,0cyclictest3250-21irqbalance08:08:260
191229943,0cyclictest3250-21irqbalance07:57:460
191229943,0cyclictest3250-21irqbalance07:36:460
191229943,0cyclictest3250-21irqbalance07:33:560
191229943,0cyclictest32350-21awk12:16:560
191229943,0cyclictest31108-21munin-node08:01:520
191229943,0cyclictest29581-21sadc11:01:400
191229943,0cyclictest23644-21awk12:11:570
191229943,0cyclictest1043-21awk11:21:560
179940,0migration/14534-21fschecks_time12:56:551
179940,0migration/131946-21kthreadcore09:06:571
179940,0migration/130175-21cpuspeed_turbos11:01:531
179940,0migration/128139-21kthreadcore10:21:591
179940,0migration/128113-21fschecks_time10:41:521
179940,0migration/126917-21cpuspeed_turbos07:36:531
179940,0migration/126545-21kthreadcore09:01:581
179940,0migration/123877-21cpu11:16:531
179940,0migration/122681-21proc_pri07:52:021
179940,0migration/122413-21irqrtprio08:16:551
179940,0migration/119505-21aten_r1power_vo07:31:511
179940,0migration/118905-21fschecks_time08:36:561
179940,0migration/115236-21kthreadcore09:16:591
169940,0watchdog/17663-21sed08:06:591
169940,0watchdog/14103-21kthreadcore07:41:591
169940,0watchdog/14006-21kthreadcore08:46:591
169940,0watchdog/132191-21kthreadcore09:46:591
169940,0watchdog/130960-21kthreadcore11:37:001
169940,0watchdog/128992-21smartctl12:12:041
169940,0watchdog/126735-21grep07:56:591
169940,0watchdog/125875-21ssh11:36:321
169940,0watchdog/115736-21ssh10:16:351
169940,0watchdog/115446-21ssh12:25:001
169940,0watchdog/114585-21gltestperf09:56:551
169940,0watchdog/113412-21taskset10:51:551
169940,0watchdog/10-21swapper/112:55:281
149940,0migration/09566-21fschecks_time11:26:550
149940,0migration/06343-21kthreadcore08:26:580
149940,0migration/05084-21kthreadcore09:31:570
149940,0migration/03612-21sh11:58:210
149940,0migration/030511-21fschecks_time09:06:530
149940,0migration/030088-21kthreadcore10:21:590
149940,0migration/028554-21munin-node10:01:590
149940,0migration/024243-21kthreadcore09:41:590
149940,0migration/022364-21kthreadcore10:36:580
149940,0migration/02088-21sh11:41:220
149940,0migration/018866-21kthreadcore11:11:590
149940,0migration/016396-21kthreadcore09:56:590
149940,0migration/013833-21irqcore10:51:580
8305030,0irq/26-0000:00:0-21swapper/307:31:473
249930,0watchdog/215183-21seq08:56:472
249930,0watchdog/20-21swapper/209:06:512
249930,0watchdog/20-21swapper/208:36:552
191249932,0cyclictest8900-21awk08:51:562
191249932,0cyclictest1477-21awk08:46:572
191249930,0cyclictest0-21swapper/208:02:392
191239932,0cyclictest32270-21awk12:16:551
191239932,0cyclictest2786-21cut11:41:531
191239932,0cyclictest25016-21sensors10:37:031
191239932,0cyclictest23505-21awk10:01:551
191239932,0cyclictest10100-21awk07:46:551
191229932,0cyclictest3673-21awk11:41:560
191229932,0cyclictest3250-21irqbalance09:46:470
191229932,0cyclictest19908-21awk12:46:570
191229932,0cyclictest11851-21awk09:36:560
191229932,0cyclictest10273-21grep09:51:590
191229931,0cyclictest0-21swapper/012:52:000
191229931,0cyclictest0-21swapper/009:26:550
191229930,0cyclictest6271-21diskmemload10:09:160
191229930,0cyclictest30737-21perl11:01:540
191229930,0cyclictest10290-21diskstats10:31:540
191229930,0cyclictest0-21swapper/011:06:580
179930,0migration/123952-21kthreadcore12:46:591
169930,0watchdog/10-21swapper/108:56:431
149930,0migration/024784-21sh11:33:210
191229920,0cyclictest0-21swapper/012:56:440
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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