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2026-07-31 - 13:45
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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 Fri Jul 31, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2233627874,0sleep10-21swapper/107:28:131
2229926362,0sleep30-21swapper/307:27:473
2229324435,0sleep20-21swapper/207:27:422
2204623424,0sleep00-21swapper/007:24:480
22477991717,0cyclictest0-21swapper/209:29:302
29805070,0irq/28-eth0-rx-8490-21ssh09:30:073
29805070,0irq/28-eth0-rx-22591-21sensors_temp10:34:253
4160,0ktimersoftd/00-21swapper/010:01:350
35160,0ktimersoftd/30-21swapper/312:42:303
35160,0ktimersoftd/30-21swapper/312:42:303
339960,0migration/34531-21sh12:57:513
339960,0migration/33189-21sh11:20:323
29805060,0irq/28-eth0-rx-27389-21munin-node09:44:143
29805060,0irq/28-eth0-rx-23899-21if_eth008:14:183
29805060,0irq/28-eth0-rx-14454-21aten2.4-expect10:14:143
259960,0migration/218234-21sendmail_mailqu12:44:252
224769966,0cyclictest3571-21lldpd10:17:481
224769960,0cyclictest0-21swapper/112:09:171
224759965,0cyclictest23522-21latency_hist11:54:030
149960,0migration/027361-21sh12:49:560
8305050,0irq/26-0000:00:27900-21awk09:24:193
8305050,0irq/26-0000:00:16410-21python12:24:272
8305050,0irq/26-0000:00:0-21swapper/309:19:023
35150,0ktimersoftd/30-21swapper/310:01:353
339950,0migration/3864-21kthreadcore07:34:203
339950,0migration/36608-21kthreadcore11:24:213
339950,0migration/36002-21kthreadcore11:04:203
339950,0migration/35729-21munin-node07:39:173
339950,0migration/34161-21kthreadcore08:44:203
339950,0migration/34103-21munin-node09:04:273
339950,0migration/33490-21kthreadcore12:19:213
339950,0migration/332443-21cpuspeed_turbos11:59:213
339950,0migration/331382-21taskset11:39:193
339950,0migration/33067-21kthreadcore07:59:213
339950,0migration/329044-21kthreadcore07:54:203
339950,0migration/328904-21smart_nvme0n107:29:273
339950,0migration/328576-21kthreadcore10:59:213
339950,0migration/325026-21munin-node11:54:203
339950,0migration/324047-21kthreadcore12:49:213
339950,0migration/323399-21kthreadcore12:29:213
339950,0migration/321399-21kthreadcore10:54:233
339950,0migration/320020-21fschecks_time07:49:173
339950,0migration/318817-21taskset07:47:503
339950,0migration/318526-21kthreadcore08:09:243
339950,0migration/316447-21fschecks_time08:54:173
339950,0migration/314415-21munin-node08:49:233
339950,0migration/312561-21kthreadcore08:04:203
339950,0migration/311741-21kthreadcore10:49:203
339950,0migration/310930-21munin-node08:24:263
339950,0migration/310784-21fschecks_time12:24:173
329950,0watchdog/32855-21cut10:04:223
329950,0watchdog/324773-21ssh12:13:063
329950,0watchdog/316052-21kthreadcore09:14:223
329950,0watchdog/315955-21kthreadcore08:29:213
329950,0watchdog/30-21swapper/308:59:223
29815050,0irq/29-eth0-tx-4708-21munin-node11:24:242
29815050,0irq/29-eth0-tx-3524-21snmpd09:04:170
29815050,0irq/29-eth0-tx-28995-21ssh12:54:092
29815050,0irq/29-eth0-tx-2211-21ssh11:03:272
29815050,0irq/29-eth0-tx-21375-21munin-node11:49:242
29815050,0irq/29-eth0-tx-15596-21munin-node08:09:270
29815050,0irq/29-eth0-tx-10041-21awk12:39:272
29815050,0irq/29-eth0-tx-10041-21awk12:39:272
29815050,0irq/29-eth0-tx-0-21swapper/211:44:282
29815050,0irq/29-eth0-tx-0-21swapper/210:16:362
29815050,0irq/29-eth0-tx-0-21swapper/210:08:292
29815050,0irq/29-eth0-tx-0-21swapper/209:39:522
29815050,0irq/29-eth0-tx-0-21swapper/009:29:130
29815050,0irq/29-eth0-tx-0-21swapper/009:24:220
29815050,0irq/29-eth0-tx-0-21swapper/007:56:010
29805050,0irq/28-eth0-rx-8661-21kthreadcore11:44:203
29805050,0irq/28-eth0-rx-6314-21runrttasks10:46:243
29805050,0irq/28-eth0-rx-3323-21kthreadcore10:24:213
29805050,0irq/28-eth0-rx-29615-21kthreadcore12:34:213
29805050,0irq/28-eth0-rx-12353-21ssh10:09:293
29805050,0irq/28-eth0-rx-0-21swapper/311:49:283
29805050,0irq/28-eth0-rx-0-21swapper/311:35:013
29805050,0irq/28-eth0-rx-0-21swapper/311:29:263
29805050,0irq/28-eth0-rx-0-21swapper/311:14:123
29805050,0irq/28-eth0-rx-0-21swapper/311:13:373
29805050,0irq/28-eth0-rx-0-21swapper/310:29:243
29805050,0irq/28-eth0-rx-0-21swapper/310:19:103
29805050,0irq/28-eth0-rx-0-21swapper/309:54:543
29805050,0irq/28-eth0-rx-0-21swapper/309:49:143
29805050,0irq/28-eth0-rx-0-21swapper/309:41:073
29805050,0irq/28-eth0-rx-0-21swapper/308:19:213
27150,0ktimersoftd/20-21swapper/210:01:352
259950,0migration/29606-21sh12:23:262
259950,0migration/232628-21sh12:16:122
259950,0migration/228853-21pmu-power08:14:242
259950,0migration/222366-21kthreadcore10:54:232
259950,0migration/211916-21latency_hist08:29:022
224779955,0cyclictest0-21swapper/211:59:402
224779955,0cyclictest0-21swapper/210:45:342
224779955,0cyclictest0-21swapper/209:54:192
224779955,0cyclictest0-21swapper/209:38:242
224779950,0cyclictest0-21swapper/212:52:292
224779950,0cyclictest0-21swapper/212:09:362
224779950,0cyclictest0-21swapper/211:57:562
224779950,0cyclictest0-21swapper/211:39:482
224779950,0cyclictest0-21swapper/211:29:142
224779950,0cyclictest0-21swapper/210:34:032
224779950,0cyclictest0-21swapper/209:47:232
224769955,0cyclictest0-21swapper/110:04:161
224769955,0cyclictest0-21swapper/108:19:161
224759955,0cyclictest1290-21diskmemload11:04:140
224759955,0cyclictest0-21swapper/012:05:430
224759953,0cyclictest17251-21kworker/0:110:50:180
224759953,0cyclictest17251-21kworker/0:110:44:180
224759953,0cyclictest17251-21kworker/0:110:34:480
224759950,0cyclictest0-21swapper/012:12:110
224759950,0cyclictest0-21swapper/011:33:530
224759950,0cyclictest0-21swapper/011:15:160
224759950,0cyclictest0-21swapper/010:21:500
19150,0ktimersoftd/10-21swapper/110:01:351
179950,0migration/19676-21irqcore08:04:191
179950,0migration/19279-21kthreadcore09:09:221
179950,0migration/132658-21munin-node10:59:231
179950,0migration/129434-21taskset08:15:221
179950,0migration/118728-21timerwakeupswit09:14:291
179950,0migration/116122-21needreboot12:24:231
179950,0migration/111791-21kthreadcore10:49:201
179950,0migration/111064-21munin-node11:24:261
169950,0watchdog/16072-21iostat_ios08:24:211
169950,0watchdog/11356-21kthreadcore09:04:221
149950,0migration/08154-21kthreadcore10:09:210
149950,0migration/07539-21missed_timers12:19:220
149950,0migration/06509-21kthreadcore09:49:230
149950,0migration/05244-21aten2.4-expect09:09:150
149950,0migration/031659-21irqcore11:39:200
149950,0migration/031448-21irqrtprio08:19:200
149950,0migration/031388-21latency_hist10:24:030
149950,0migration/029018-21kthreadcore08:39:210
149950,0migration/028932-21kthreadcore10:59:210
149950,0migration/028271-21timerwakeupswit11:34:300
149950,0migration/027626-21kthreadcore07:29:230
149950,0migration/027347-21kthreadcore12:14:190
149950,0migration/024985-21switchtime12:29:280
149950,0migration/023059-21aten_r1power_fr08:59:140
149950,0migration/020963-21latency11:49:200
149950,0migration/019795-21cpuspeed_turbos09:19:160
149950,0migration/018552-21taskset09:14:260
149950,0migration/018394-21latency09:54:240
149950,0migration/017729-21kthreadcore12:44:220
149950,0migration/015983-21turbostat10:34:030
149950,0migration/014470-21taskset11:48:100
149950,0migration/011930-21fschecks_count11:09:160
149950,0migration/010770-21kthreadcore08:04:200
149950,0migration/010252-21kthreadcore11:24:220
149950,0migration/01004-21sh09:44:230
8305040,0irq/26-0000:00:6429-21kthreadcore11:04:212
339940,0migration/326949-21fschecks_count08:39:173
339940,0migration/326297-21gltestperf12:14:153
339940,0migration/316416-21diskmemload12:08:393
329940,0watchdog/38890-21kthreadcore09:09:223
329940,0watchdog/3298050irq/28-eth0-rx-10:39:183
329940,0watchdog/310242-21aten_r1power_po09:34:143
29815040,0irq/29-eth0-tx-0-21swapper/212:29:142
29815040,0irq/29-eth0-tx-0-21swapper/212:04:112
29815040,0irq/29-eth0-tx-0-21swapper/211:19:152
29815040,0irq/29-eth0-tx-0-21swapper/211:14:212
29815040,0irq/29-eth0-tx-0-21swapper/211:09:152
29815040,0irq/29-eth0-tx-0-21swapper/210:49:242
29815040,0irq/29-eth0-tx-0-21swapper/210:19:232
29815040,0irq/29-eth0-tx-0-21swapper/008:44:130
29815040,0irq/29-eth0-tx-0-21swapper/008:14:150
29805040,0irq/28-eth0-rx-0-21swapper/312:44:213
259940,0migration/29338-21kthreadcore10:09:212
259940,0migration/25363-21fschecks_count07:39:162
259940,0migration/231832-21kthreadcore07:34:202
259940,0migration/230918-21gltestperf08:19:162
259940,0migration/230774-21kthreadcore07:54:212
259940,0migration/230738-21kthreadcore12:34:222
259940,0migration/230187-21munin-node09:04:142
259940,0migration/226670-21latency_hist09:24:022
259940,0migration/211959-21runrttasks09:12:432
249940,0watchdog/27222-21memory08:44:222
249940,0watchdog/24221-21df_abs09:49:182
249940,0watchdog/2298150irq/29-eth0-tx-10:39:182
249940,0watchdog/224006-21grep09:19:222
249940,0watchdog/222582-21cut07:49:212
249940,0watchdog/213754-21needreboot10:29:222
249940,0watchdog/211024-21cut08:49:222
249940,0watchdog/20-21swapper/210:24:222
249940,0watchdog/20-21swapper/208:59:222
249940,0watchdog/20-21swapper/208:29:212
249940,0watchdog/20-21swapper/207:29:172
224779944,0cyclictest305350irq/27-eth108:40:102
224779943,0cyclictest3524-21snmpd11:35:182
224779943,0cyclictest2219-21awk07:59:192
224779943,0cyclictest20354-21awk08:34:192
224779943,0cyclictest16892-21awk08:54:192
224769943,0cyclictest8791-21awk10:29:181
224769943,0cyclictest4550-21awk12:39:171
224769943,0cyclictest4550-21awk12:39:171
224769943,0cyclictest3571-21lldpd12:04:191
224769943,0cyclictest3571-21lldpd11:55:191
224769943,0cyclictest3571-21lldpd10:19:481
224769943,0cyclictest3571-21lldpd07:52:451
224769943,0cyclictest3524-21snmpd12:44:191
224769943,0cyclictest3524-21snmpd12:29:041
224769943,0cyclictest3524-21snmpd12:16:191
224769943,0cyclictest3524-21snmpd10:55:181
224769943,0cyclictest3524-21snmpd10:46:181
224769943,0cyclictest3524-21snmpd10:41:181
224769943,0cyclictest3524-21snmpd09:40:171
224769943,0cyclictest3524-21snmpd08:35:171
224769943,0cyclictest3524-21snmpd07:56:021
224769943,0cyclictest3524-21snmpd07:36:161
224769943,0cyclictest28256-21awk12:34:191
224769943,0cyclictest2580-21awk12:19:191
224769943,0cyclictest22967-21awk11:34:201
224769943,0cyclictest17328-21awk10:34:181
224759944,0cyclictest0-21swapper/012:57:450
224759943,0cyclictest3524-21snmpd07:52:460
224759943,0cyclictest3250-21irqbalance08:02:490
224759943,0cyclictest30936-21awk07:34:180
224759943,0cyclictest19196-21awk10:54:210
224759943,0cyclictest13032-21awk07:44:180
224759942,0cyclictest17251-21kworker/0:110:39:180
224759942,0cyclictest14816-21kworker/0:209:40:180
179940,0migration/19919-21kthreadcore10:09:221
179940,0migration/18191-21timerwakeupswit09:29:281
179940,0migration/18012-21sh11:44:201
179940,0migration/17067-21kthreadcore11:04:211
179940,0migration/14744-21taskset07:39:031
179940,0migration/14556-21fschecks_time09:49:191
179940,0migration/132056-21kthreadcore09:24:221
179940,0migration/131415-21sh10:24:071
179940,0migration/127193-21kthreadcore07:29:231
179940,0migration/123729-21fschecks_time08:59:161
179940,0migration/121694-21kthreadcore09:19:211
179940,0migration/120202-21kthreadcore08:09:251
179940,0migration/120196-21cpuspeed_turbos11:14:161
179940,0migration/117388-21kthreadcore11:29:221
179940,0migration/116406-21kthreadcore08:29:221
179940,0migration/115394-21kthreadcore09:54:231
169940,0watchdog/15314-21ssh11:41:261
169940,0watchdog/139492sleep111:22:381
169940,0watchdog/13377-21cat07:59:211
169940,0watchdog/12986-21ssh09:47:381
169940,0watchdog/129515-21fschecks_count12:54:181
169940,0watchdog/123102-21ssh11:53:221
169940,0watchdog/12158-21cut11:59:261
169940,0watchdog/119848-21kthreadcore08:54:221
169940,0watchdog/10-21swapper/112:49:141
169940,0watchdog/10-21swapper/111:09:141
169940,0watchdog/10-21swapper/109:34:141
169940,0watchdog/10-21swapper/108:49:221
169940,0watchdog/10-21swapper/108:39:211
169940,0watchdog/10-21swapper/107:44:251
149940,0migration/09283-21kthreadcore07:39:210
149940,0migration/0626-21kthreadcore11:19:230
149940,0migration/030558-21hddtemp_smartct10:04:170
149940,0migration/018616-21unixbench_singl08:29:300
149940,0migration/018052-21sh09:38:010
149940,0migration/015587-21sh10:14:200
149940,0migration/011965-21latency_hist08:29:020
149940,0migration/011667-21irqrtprio12:24:210
329930,0watchdog/30-21swapper/308:34:053
249930,0watchdog/20-21swapper/209:14:222
249930,0watchdog/20-21swapper/207:44:252
224779932,0cyclictest16728-21awk08:09:222
224779932,0cyclictest14599-21sensors08:04:252
224759933,0cyclictest9306-21kworker/0:208:34:080
224759933,0cyclictest7610-21kworker/0:008:49:080
224759933,0cyclictest19574-21kworker/0:212:39:070
224759933,0cyclictest19574-21kworker/0:212:39:070
224759933,0cyclictest19574-21kworker/0:212:34:070
224759933,0cyclictest19574-21kworker/0:211:59:040
224759933,0cyclictest14816-21kworker/0:208:54:100
169930,0watchdog/10-21swapper/108:44:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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