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2026-08-02 - 19:04
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Sun Aug 02, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2444323827,0sleep00-21swapper/007:27:080
2451523526,0sleep10-21swapper/107:27:571
2450223021,0sleep30-21swapper/307:27:473
2427922925,0sleep20-21swapper/207:25:102
8305070,0irq/26-0000:00:21180-21munin-run07:49:123
339960,0migration/328673-21latency_hist10:59:133
339960,0migration/311900-21sh11:05:113
329960,0watchdog/37164-21kthreadcore10:44:323
329960,0watchdog/37164-21kthreadcore10:44:323
247009960,0cyclictest0-21swapper/207:44:252
246989963,0cyclictest28649-21kworker/0:009:39:400
246989960,0cyclictest0-21swapper/012:04:270
149960,0migration/030635-21kthreadcore09:24:310
149960,0migration/029143-21kthreadcore09:59:320
149960,0migration/02739-21sh12:17:490
149960,0migration/021045-21sh11:12:030
8305050,0irq/26-0000:00:0-21swapper/308:39:123
339950,0migration/39860-21kthreadcore08:24:363
339950,0migration/37148-21munin-node07:39:263
339950,0migration/36905-21aten_r1power_en11:24:243
339950,0migration/35627-21kthreadcore09:29:313
339950,0migration/35399-21kthreadcore07:59:283
339950,0migration/329670-21kthreadcore08:14:333
339950,0migration/328362-21kthreadcore07:29:313
339950,0migration/327546-21fschecks_count10:39:273
339950,0migration/327546-21fschecks_count10:39:273
339950,0migration/325515-21kthreadcore11:14:313
339950,0migration/325456-21kthreadcore12:29:333
339950,0migration/322767-21irqcore07:49:283
339950,0migration/321359-21munin-run08:34:123
339950,0migration/320754-21sh09:39:103
339950,0migration/31934-21kthreadcore12:54:303
339950,0migration/318543-21aten2.4-expect10:34:253
339950,0migration/315358-21kthreadcore12:04:313
339950,0migration/315054-21cpuspeed_turbos09:54:253
339950,0migration/313273-21munin-node09:09:333
329950,0watchdog/34128-21ssh09:44:523
329950,0watchdog/331522-21tr12:14:323
329950,0watchdog/330508-21kthreadcore09:24:313
329950,0watchdog/328707-21kthreadcore09:59:323
329950,0watchdog/328468-21kthreadcore11:54:323
329950,0watchdog/30-21swapper/310:04:323
329950,0watchdog/30-21swapper/308:34:233
29815050,0irq/29-eth0-tx-7322-21munin-node09:09:260
29815050,0irq/29-eth0-tx-6854-21munin-node11:24:282
29815050,0irq/29-eth0-tx-32415-21munin-node09:04:230
29815050,0irq/29-eth0-tx-3154-21munin-node10:44:262
29815050,0irq/29-eth0-tx-3154-21munin-node10:44:262
29815050,0irq/29-eth0-tx-30953-21kthreadcore12:14:322
29815050,0irq/29-eth0-tx-13556-21munin-node11:09:272
29815050,0irq/29-eth0-tx-12508-21ssh11:06:592
29815050,0irq/29-eth0-tx-0-21swapper/210:28:032
29815050,0irq/29-eth0-tx-0-21swapper/209:35:222
29805050,0irq/28-eth0-rx-21862-21kthreadcore10:14:323
29805050,0irq/28-eth0-rx-20352-21kthreadcore11:29:323
29805050,0irq/28-eth0-rx-18740-21ssh10:50:333
29805050,0irq/28-eth0-rx-14770-21iostat11:09:313
29805050,0irq/28-eth0-rx-13055-21kthreadcore10:09:353
29805050,0irq/28-eth0-rx-0-21swapper/312:49:263
29805050,0irq/28-eth0-rx-0-21swapper/312:44:323
29805050,0irq/28-eth0-rx-0-21swapper/312:38:143
29805050,0irq/28-eth0-rx-0-21swapper/311:59:263
29805050,0irq/28-eth0-rx-0-21swapper/311:49:313
29805050,0irq/28-eth0-rx-0-21swapper/310:19:313
29805050,0irq/28-eth0-rx-0-21swapper/309:49:313
29805050,0irq/28-eth0-rx-0-21swapper/309:42:463
29805050,0irq/28-eth0-rx-0-21swapper/308:49:333
259950,0migration/26484-21kthreadcore12:19:322
259950,0migration/24253-21sh11:02:472
259950,0migration/22902-21latency_hist10:44:132
259950,0migration/22902-21latency_hist10:44:132
259950,0migration/226544-21fschecks_time11:54:282
259950,0migration/222582-21munin-node07:49:282
247009955,0cyclictest0-21swapper/212:24:342
247009955,0cyclictest0-21swapper/209:39:302
247009954,0cyclictest30493-21turbostat12:54:132
246999955,0cyclictest0-21swapper/111:20:111
246999955,0cyclictest0-21swapper/107:29:311
246999950,0cyclictest0-21swapper/112:36:011
246999950,0cyclictest0-21swapper/111:41:561
246989953,0cyclictest29620-21kworker/0:011:00:020
246989953,0cyclictest29620-21kworker/0:010:49:220
246989953,0cyclictest29620-21kworker/0:010:44:160
246989953,0cyclictest29620-21kworker/0:010:44:160
246989953,0cyclictest29620-21kworker/0:010:32:160
246989953,0cyclictest29620-21kworker/0:010:26:220
246989953,0cyclictest29620-21kworker/0:010:20:280
246989953,0cyclictest29620-21kworker/0:010:09:160
246989953,0cyclictest28649-21kworker/0:009:51:020
246989953,0cyclictest28649-21kworker/0:009:44:440
246989953,0cyclictest28649-21kworker/0:009:36:340
246989953,0cyclictest21080-21kworker/0:209:54:460
246989953,0cyclictest20145-21kworker/0:012:50:540
246989953,0cyclictest19894-21kworker/0:212:34:140
246989953,0cyclictest19894-21kworker/0:212:29:360
246989953,0cyclictest19894-21kworker/0:212:27:020
246989953,0cyclictest19894-21kworker/0:212:10:140
246989953,0cyclictest19894-21kworker/0:211:59:300
246989953,0cyclictest19894-21kworker/0:211:49:160
246989953,0cyclictest19894-21kworker/0:211:46:160
246989953,0cyclictest19894-21kworker/0:211:34:400
246989953,0cyclictest19894-21kworker/0:211:29:260
246989953,0cyclictest19894-21kworker/0:211:24:420
246989952,0cyclictest29620-21kworker/0:011:04:320
246989952,0cyclictest29620-21kworker/0:010:04:320
249950,0watchdog/229793-21perl09:24:272
249950,0watchdog/20-21swapper/209:14:312
19150,0ktimersoftd/10-21swapper/110:11:071
179950,0migration/17412-21kthreadcore07:59:281
179950,0migration/16682-21sh10:06:041
179950,0migration/128408-21irqcore10:39:311
179950,0migration/128408-21irqcore10:39:311
179950,0migration/126431-21munin-node08:59:281
179950,0migration/125947-21taskset12:10:381
179950,0migration/122103-21sh11:14:241
179950,0migration/121739-21aten2.4-expect08:34:241
179950,0migration/118557-21timerwakeupswit12:24:381
179950,0migration/112305-21munin-node10:49:261
179950,0migration/111060-21fschecks_count12:04:261
169950,0watchdog/119819-21processes11:09:361
169950,0watchdog/111979-21munin-node12:39:401
149950,0migration/09589-21missed_timers12:19:340
149950,0migration/06927-21kthreadcore08:44:320
149950,0migration/05834-21taskset11:22:060
149950,0migration/04731-21kthreadcore11:39:310
149950,0migration/03905-21taskset09:29:250
149950,0migration/032325-21kernelversion12:54:290
149950,0migration/032131-21kthreadcore10:39:330
149950,0migration/032131-21kthreadcore10:39:330
149950,0migration/032075-21taskset09:03:040
149950,0migration/030579-21kthreadcore08:14:330
149950,0migration/029817-21irqcore07:54:290
149950,0migration/025873-21cpuspeed_turbos11:54:260
149950,0migration/023593-21taskset10:15:430
149950,0migration/023246-21kthreadcore08:34:300
149950,0migration/021989-21latency_hist11:14:130
149950,0migration/021533-21kthreadcore10:34:310
149950,0migration/021067-21munin-node10:54:270
149950,0migration/020215-21switchtime12:44:400
149950,0migration/020076-21kthreadcore08:09:310
149950,0migration/015643-21if_eth1.209:14:310
149950,0migration/012811-21kthreadcore08:04:300
149950,0migration/011038-21kthreadcore12:39:330
8305040,0irq/26-0000:00:0-21swapper/212:44:132
339940,0migration/34344-21kthreadcore11:39:313
339940,0migration/33687-21sh12:19:263
339940,0migration/33675-21kthreadcore07:34:313
339940,0migration/327351-21kthreadcore11:34:323
339940,0migration/325136-21kthreadcore10:54:323
339940,0migration/321391-21kthreadcore12:09:353
339940,0migration/317419-21taskset08:06:513
329940,0watchdog/34891-21irqcore08:44:313
329940,0watchdog/324260-21sed08:09:393
329940,0watchdog/30-21swapper/312:39:363
329940,0watchdog/30-21swapper/310:29:163
329940,0watchdog/30-21swapper/309:14:313
329940,0watchdog/30-21swapper/308:54:313
29815040,0irq/29-eth0-tx-8634-21munin-node11:44:272
29815040,0irq/29-eth0-tx-3582-21diskmemload10:49:222
29815040,0irq/29-eth0-tx-23224-21ssh09:59:162
29815040,0irq/29-eth0-tx-21327-21if_err_eth110:54:292
29815040,0irq/29-eth0-tx-0-21swapper/212:39:312
29815040,0irq/29-eth0-tx-0-21swapper/212:10:152
29815040,0irq/29-eth0-tx-0-21swapper/212:04:262
29815040,0irq/29-eth0-tx-0-21swapper/211:59:352
29815040,0irq/29-eth0-tx-0-21swapper/211:39:382
29815040,0irq/29-eth0-tx-0-21swapper/211:29:182
29815040,0irq/29-eth0-tx-0-21swapper/210:34:142
29815040,0irq/29-eth0-tx-0-21swapper/209:54:132
29815040,0irq/29-eth0-tx-0-21swapper/209:45:572
29815040,0irq/29-eth0-tx-0-21swapper/007:59:220
29815040,0irq/29-eth0-tx-0-21swapper/007:49:340
29805040,0irq/28-eth0-rx-0-21swapper/312:24:413
29805040,0irq/28-eth0-rx-0-21swapper/311:44:263
29805040,0irq/28-eth0-rx-0-21swapper/311:19:313
29805040,0irq/28-eth0-rx-0-21swapper/310:24:513
29805040,0irq/28-eth0-rx-0-21swapper/309:19:323
29805040,0irq/28-eth0-rx-0-21swapper/309:04:293
259940,0migration/28366-21kthreadcore09:29:322
259940,0migration/28009-21sh10:09:202
259940,0migration/27990-21fschecks_time09:09:262
259940,0migration/227412-21missed_timers08:34:312
259940,0migration/22575-21timerwakeupswit07:54:372
259940,0migration/224717-21runrttasks08:55:572
247009944,0cyclictest0-21swapper/210:04:252
247009943,0cyclictest890-21awk07:34:292
247009943,0cyclictest8369-21awk08:24:342
247009943,0cyclictest3571-21lldpd11:19:252
247009943,0cyclictest3571-21lldpd09:04:242
247009943,0cyclictest3571-21lldpd08:49:242
247009943,0cyclictest3571-21lldpd08:05:242
247009943,0cyclictest3250-21irqbalance09:19:192
247009943,0cyclictest31826-21awk12:54:272
247009943,0cyclictest29944-21awk08:39:302
247009943,0cyclictest28199-21grep11:14:342
247009943,0cyclictest25978-21awk07:29:292
247009943,0cyclictest15434-21awk08:29:272
247009943,0cyclictest11025-21awk10:29:282
247009940,0cyclictest29150-21munin-node12:34:342
246999944,0cyclictest0-21swapper/110:29:251
246999943,0cyclictest3571-21lldpd08:44:241
246999943,0cyclictest3524-21snmpd11:32:091
246999943,0cyclictest3524-21snmpd09:43:231
246999943,0cyclictest3524-21snmpd09:10:231
246999943,0cyclictest31957-21awk12:54:281
246999943,0cyclictest25055-21awk11:34:291
246999943,0cyclictest23455-21awk12:49:301
246989943,0cyclictest3524-21snmpd08:20:070
246989943,0cyclictest22867-21awk09:19:290
246989943,0cyclictest19239-21awk08:54:300
246989943,0cyclictest11915-21awk08:49:290
249940,0watchdog/29363-21kthreadcore09:49:322
249940,0watchdog/2260512chrt10:19:282
249940,0watchdog/221319-21fschecks_time12:29:282
249940,0watchdog/220291-21cut10:14:322
249940,0watchdog/217158-21munin-node11:49:242
249940,0watchdog/20-21swapper/211:34:322
179940,0migration/18629-21taskset10:26:201
179940,0migration/18564-21irqcore08:24:351
179940,0migration/1621-21fschecks_time09:04:241
179940,0migration/13391-21latency_hist12:19:131
179940,0migration/130661-21kthreadcore07:54:301
179940,0migration/129911-21kthreadcore12:14:311
179940,0migration/127209-21kthreadcore09:59:311
179940,0migration/124647-21taskset08:12:091
179940,0migration/122410-21fschecks_time09:19:261
179940,0migration/122051-21latency_hist12:49:131
179940,0migration/120927-21kthreadcore10:34:311
179940,0migration/118192-21kthreadcore09:54:301
179940,0migration/118026-21kthreadcore07:44:301
179940,0migration/117730-21if_eth110:14:301
179940,0migration/117359-21kthreadcore08:29:301
179940,0migration/115057-21timerandwakeup11:44:381
179940,0migration/111384-21fschecks_time08:04:261
179940,0migration/111087-21cpu08:49:261
179940,0migration/11030-21if_eth1.308:19:301
169940,0watchdog/19229-21kthreadcore07:39:311
169940,0watchdog/19056-21ssh12:01:001
169940,0watchdog/17166-21kthreadcore10:44:321
169940,0watchdog/17166-21kthreadcore10:44:321
169940,0watchdog/15074-21sh11:04:241
169940,0watchdog/14252-21ssh09:45:161
169940,0watchdog/12989-21taskset08:40:031
169940,0watchdog/129885-21kthreadcore10:19:321
169940,0watchdog/120557-21ssh12:29:201
169940,0watchdog/115899-21ps09:14:311
169940,0watchdog/113651-21chrt09:52:001
169940,0watchdog/10-21swapper/111:54:281
169940,0watchdog/10-21swapper/109:34:231
169940,0watchdog/10-21swapper/107:34:311
149940,0migration/07555-21runrttasks08:24:300
149940,0migration/032644-21fschecks_count07:34:260
329930,0watchdog/30-21swapper/308:59:273
329930,0watchdog/30-21swapper/308:19:313
329930,0watchdog/30-21swapper/307:54:393
247009932,0cyclictest3571-21lldpd08:59:242
247009932,0cyclictest26606-21irqstats08:14:322
247009930,0cyclictest7022-21basename07:39:252
246999933,0cyclictest0-21swapper/109:29:211
246999932,0cyclictest6989-21aten_r1power_vo11:24:251
246999932,0cyclictest426-21cut10:59:301
246999932,0cyclictest3571-21lldpd07:49:241
246999932,0cyclictest30515-21cut08:14:331
246999932,0cyclictest19165-21awk08:54:291
246989933,0cyclictest28649-21kworker/0:008:39:220
246989933,0cyclictest28649-21kworker/0:008:29:130
246989933,0cyclictest16724-21kworker/0:107:44:150
246989933,0cyclictest16724-21kworker/0:107:39:190
246989933,0cyclictest16724-21kworker/0:107:29:210
249930,0watchdog/24892-21irqcore08:44:312
249930,0watchdog/20-21swapper/208:19:312
249930,0watchdog/20-21swapper/208:09:312
249930,0watchdog/20-21swapper/207:59:232
169930,0watchdog/10-21swapper/111:51:481
169930,0watchdog/10-21swapper/110:54:321
169930,0watchdog/10-21swapper/109:24:311
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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