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2026-10-01 - 18:35
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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 Thu Oct 01, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3224424029,0sleep20-21swapper/207:29:562
3256723728,0sleep30-21swapper/307:33:413
3257523526,0sleep10-21swapper/107:33:471
3224722925,0sleep00-21swapper/007:29:580
35160,0ktimersoftd/30-21swapper/307:44:213
339960,0migration/37212-21sh10:08:153
339960,0migration/36183-21df_abs12:39:203
339960,0migration/34991-21runrttasks12:37:393
339960,0migration/3366-21sh10:23:243
339960,0migration/328931-21sh11:15:213
326759960,0cyclictest0-21swapper/209:42:212
326739960,0cyclictest0-21swapper/112:33:301
329960,0watchdog/34228-21sh11:03:203
329960,0watchdog/317707-21sh12:05:483
29805060,0irq/28-eth0-rx-30346-21perl08:39:223
29805060,0irq/28-eth0-rx-16638-21tr10:14:213
29805060,0irq/28-eth0-rx-13214-21latency_hist11:09:093
19160,0ktimersoftd/115756-21tune2fs07:44:211
149960,0migration/0564-21irqrtprio10:04:250
149960,0migration/018295-21sh12:07:330
149960,0migration/015277-21sh13:01:530
339950,0migration/38075-21latency_hist09:09:083
339950,0migration/37155-21timerwakeupswit08:19:323
339950,0migration/35848-21kthreadcore12:19:253
339950,0migration/34916-21df_abs09:29:213
339950,0migration/34531-21switchtime11:19:333
339950,0migration/34267-21kthreadcore12:54:263
339950,0migration/329768-21munin-node09:24:213
339950,0migration/329141-21kthreadcore08:59:243
339950,0migration/326359-21kthreadcore09:59:263
339950,0migration/32627-21fschecks_time11:59:243
339950,0migration/32544-21kthreadcore09:44:263
339950,0migration/324480-21munin-node10:34:293
339950,0migration/324146-21munin-node12:49:253
339950,0migration/318949-21sh10:51:533
339950,0migration/317837-21kthreadcore09:14:243
339950,0migration/316796-21kthreadcore08:29:243
339950,0migration/315636-21kthreadcore09:34:253
339950,0migration/313817-21missed_timers08:24:293
339950,0migration/310416-21kthreadcore10:09:263
326759955,0cyclictest11564-21diskmemload12:38:472
326759955,0cyclictest0-21swapper/213:02:162
326759955,0cyclictest0-21swapper/212:01:152
326759954,0cyclictest3524-21snmpd09:08:552
326759954,0cyclictest3524-21snmpd08:54:552
326759954,0cyclictest3524-21snmpd07:51:552
326759954,0cyclictest0-21swapper/212:04:212
326759950,0cyclictest0-21swapper/212:53:552
326739955,0cyclictest0-21swapper/112:26:431
326739955,0cyclictest0-21swapper/111:42:531
326739955,0cyclictest0-21swapper/111:42:531
326739950,0cyclictest0-21swapper/112:56:591
326739950,0cyclictest0-21swapper/112:02:451
326739950,0cyclictest0-21swapper/111:36:071
326739950,0cyclictest0-21swapper/109:55:121
326729950,0cyclictest0-21swapper/011:15:290
329950,0watchdog/327287-21python12:29:323
329950,0watchdog/310121-21irqrtprio11:44:243
329950,0watchdog/30-21swapper/311:10:283
329950,0watchdog/30-21swapper/309:39:193
29815050,0irq/29-eth0-tx-24845-21munin-node10:19:262
29815050,0irq/29-eth0-tx-2033-21ssh12:14:432
29815050,0irq/29-eth0-tx-15197-21telnet08:29:180
29815050,0irq/29-eth0-tx-13866-21ssh09:53:492
29815050,0irq/29-eth0-tx-0-21swapper/212:39:462
29815050,0irq/29-eth0-tx-0-21swapper/211:43:162
29815050,0irq/29-eth0-tx-0-21swapper/211:43:162
29815050,0irq/29-eth0-tx-0-21swapper/211:18:132
29815050,0irq/29-eth0-tx-0-21swapper/210:34:582
29815050,0irq/29-eth0-tx-0-21swapper/210:04:352
29815050,0irq/29-eth0-tx-0-21swapper/009:35:300
29815050,0irq/29-eth0-tx-0-21swapper/008:20:450
29805050,0irq/28-eth0-rx-6176-21grep08:44:233
29805050,0irq/28-eth0-rx-3244-21df_abs10:44:203
29805050,0irq/28-eth0-rx-27993-21df12:14:203
29805050,0irq/28-eth0-rx-25750-21unixbench_singl12:09:343
29805050,0irq/28-eth0-rx-24103-21cpuspeed_turbos11:34:213
29805050,0irq/28-eth0-rx-10206-21kthreadcore11:24:263
29805050,0irq/28-eth0-rx-0-21swapper/312:59:293
29805050,0irq/28-eth0-rx-0-21swapper/312:44:263
29805050,0irq/28-eth0-rx-0-21swapper/310:29:203
29805050,0irq/28-eth0-rx-0-21swapper/309:49:233
29805050,0irq/28-eth0-rx-0-21swapper/308:04:193
259950,0migration/27876-21sh10:24:452
259950,0migration/26505-21munin-node07:34:282
259950,0migration/215885-21sh11:46:102
259950,0migration/214604-21kthreadcore08:49:262
259950,0migration/214054-21kthreadcore09:34:252
249950,0watchdog/218444-21needreboot12:24:282
19150,0ktimersoftd/10-21swapper/112:35:041
19150,0ktimersoftd/10-21swapper/111:23:301
179950,0migration/115102-21sh10:11:191
169950,0watchdog/16664-21cut08:44:231
149950,0migration/07658-21timerwakeupswit10:24:330
149950,0migration/06962-21kthreadcore08:44:230
149950,0migration/06056-21missed_timers11:39:290
149950,0migration/06056-21missed_timers11:39:290
149950,0migration/04909-21sh09:48:130
149950,0migration/032630-21taskset10:22:490
149950,0migration/030097-21kthreadcore11:54:250
149950,0migration/02946-21taskset10:59:420
149950,0migration/029439-21munin-node07:54:190
149950,0migration/028068-21kthreadcore08:59:240
149950,0migration/024600-21kthreadcore07:49:250
149950,0migration/024212-21df_abs11:34:210
149950,0migration/024117-21munin-node09:59:230
149950,0migration/024041-21kthreadcore12:09:260
149950,0migration/022294-21latency_hist08:34:080
149950,0migration/021545-21fschecks_count12:29:220
149950,0migration/02088-21kthreadcore12:34:260
149950,0migration/020240-21munin-node09:54:270
149950,0migration/016340-21kthreadcore11:09:270
149950,0migration/016259-21gltestperf11:29:230
149950,0migration/015940-21sh10:13:470
149950,0migration/012763-21taskset08:49:240
149950,0migration/011465-21sh10:49:130
149950,0migration/011361-21taskset09:31:560
149950,0migration/011194-21sh10:49:040
149950,0migration/010530-21fschecks_time10:29:220
339940,0migration/37829-21kthreadcore07:59:263
339940,0migration/328844-21taskset07:51:123
339940,0migration/327793-21kthreadcore08:34:253
326759943,0cyclictest4110-21awk10:44:232
326759943,0cyclictest3250-21irqbalance11:54:152
326759943,0cyclictest3250-21irqbalance10:54:352
326759943,0cyclictest3250-21irqbalance09:24:352
326759943,0cyclictest3250-21irqbalance09:19:452
326759943,0cyclictest3250-21irqbalance09:10:152
326759943,0cyclictest3250-21irqbalance08:37:152
326759943,0cyclictest3250-21irqbalance08:29:152
326759943,0cyclictest3250-21irqbalance07:39:142
326759943,0cyclictest16048-21awk07:44:232
326739944,0cyclictest0-21swapper/110:29:161
326739944,0cyclictest0-21swapper/109:47:571
326739943,0cyclictest5958-21awk11:04:251
326739943,0cyclictest5254-21awk07:59:231
326739943,0cyclictest3571-21lldpd12:41:191
326739943,0cyclictest3571-21lldpd12:10:171
326739943,0cyclictest3571-21lldpd11:57:471
326739943,0cyclictest3571-21lldpd11:29:171
326739943,0cyclictest3571-21lldpd11:14:171
326739943,0cyclictest3571-21lldpd10:50:161
326739943,0cyclictest3571-21lldpd10:45:471
326739943,0cyclictest3571-21lldpd10:34:461
326739943,0cyclictest3571-21lldpd10:24:161
326739943,0cyclictest3571-21lldpd10:05:171
326739943,0cyclictest3571-21lldpd09:40:171
326739943,0cyclictest3571-21lldpd09:36:471
326739943,0cyclictest3571-21lldpd09:13:161
326739943,0cyclictest3571-21lldpd08:39:151
326739943,0cyclictest3571-21lldpd08:24:151
326739943,0cyclictest3571-21lldpd08:14:451
326739943,0cyclictest3571-21lldpd08:11:451
326739943,0cyclictest3571-21lldpd07:49:131
326739943,0cyclictest3571-21lldpd07:42:431
326739943,0cyclictest3571-21lldpd07:34:121
326739943,0cyclictest3524-21snmpd09:52:261
326739943,0cyclictest3524-21snmpd08:50:551
326739943,0cyclictest3524-21snmpd08:21:401
326739943,0cyclictest30866-21awk09:24:251
326739943,0cyclictest30405-21awk07:54:231
326739943,0cyclictest29457-21sadc09:24:081
326739943,0cyclictest22109-21sadc08:34:081
326739943,0cyclictest18261-21awk11:49:241
326739943,0cyclictest14458-21awk11:09:251
326739943,0cyclictest12529-21awk08:04:231
326729944,0cyclictest0-21swapper/008:09:270
326729943,0cyclictest9685-21awk11:44:220
326729943,0cyclictest9219-21awk09:09:240
326729943,0cyclictest7776-21awk11:24:230
326729943,0cyclictest3571-21lldpd12:21:480
326729943,0cyclictest3524-21snmpd08:00:400
326729943,0cyclictest31786-21cut08:14:290
326729943,0cyclictest30724-21awk09:24:240
326729943,0cyclictest19232-21awk10:34:220
326729940,0cyclictest22264-21munin-run09:19:080
329940,0watchdog/33552-21lldpd08:51:153
329940,0watchdog/321171-21if_eth1.310:54:243
329940,0watchdog/30-21swapper/312:24:243
329940,0watchdog/30-21swapper/311:29:283
329940,0watchdog/30-21swapper/310:39:203
329940,0watchdog/30-21swapper/307:39:233
29815040,0irq/29-eth0-tx-9407-21kthreadcore10:09:262
29815040,0irq/29-eth0-tx-26714-21ssh12:12:122
29815040,0irq/29-eth0-tx-16303-21ssh11:29:242
29815040,0irq/29-eth0-tx-11591-21ssh10:49:192
29815040,0irq/29-eth0-tx-0-21swapper/212:54:132
29815040,0irq/29-eth0-tx-0-21swapper/212:44:122
29815040,0irq/29-eth0-tx-0-21swapper/211:49:112
29815040,0irq/29-eth0-tx-0-21swapper/211:24:192
29815040,0irq/29-eth0-tx-0-21swapper/211:19:202
29815040,0irq/29-eth0-tx-0-21swapper/211:09:212
29815040,0irq/29-eth0-tx-0-21swapper/211:04:112
29815040,0irq/29-eth0-tx-0-21swapper/210:59:102
29815040,0irq/29-eth0-tx-0-21swapper/210:39:252
29815040,0irq/29-eth0-tx-0-21swapper/210:14:432
29815040,0irq/29-eth0-tx-0-21swapper/209:54:262
29815040,0irq/29-eth0-tx-0-21swapper/009:19:210
29815040,0irq/29-eth0-tx-0-21swapper/008:54:200
29815040,0irq/29-eth0-tx-0-21swapper/008:39:210
29815040,0irq/29-eth0-tx-0-21swapper/008:04:310
29815040,0irq/29-eth0-tx-0-21swapper/007:44:150
29815040,0irq/29-eth0-tx-0-21swapper/007:39:230
29815040,0irq/29-eth0-tx-0-21swapper/007:36:150
29805040,0irq/28-eth0-rx-27354-21kthreadcore11:54:243
29805040,0irq/28-eth0-rx-22645-21kthreadcore08:09:253
29805040,0irq/28-eth0-rx-0-21swapper/311:49:263
29805040,0irq/28-eth0-rx-0-21swapper/311:41:053
29805040,0irq/28-eth0-rx-0-21swapper/311:41:053
29805040,0irq/28-eth0-rx-0-21swapper/310:25:193
29805040,0irq/28-eth0-rx-0-21swapper/309:54:173
29805040,0irq/28-eth0-rx-0-21swapper/308:14:233
259940,0migration/29744-21aten2.4-expect10:29:192
259940,0migration/27941-21kthreadcore08:44:242
259940,0migration/27281-21kthreadcore07:59:262
259940,0migration/24127-21munin-node12:19:202
259940,0migration/23386-21kthreadcore08:19:242
259940,0migration/230132-21fschecks_time07:54:212
259940,0migration/229150-21sh09:44:182
259940,0migration/225997-21latency_hist08:59:082
259940,0migration/223962-21aten_r1power_vo11:34:202
259940,0migration/223076-21aten_r1power_fr09:59:192
259940,0migration/22123-21kthreadcore08:39:272
259940,0migration/215236-21latency_hist09:14:082
259940,0migration/213827-21kthreadcore08:04:252
249940,0watchdog/29945-21cut08:24:272
249940,0watchdog/221071-21chrt12:29:202
249940,0watchdog/20-21swapper/208:14:272
179940,0migration/129713-21kthreadcore10:19:251
179940,0migration/116917-21sh12:04:311
169940,0watchdog/13679-21ssh11:01:441
169940,0watchdog/12916-21ssh12:17:161
169940,0watchdog/121793-21kthreadcore10:14:271
169940,0watchdog/113870-21munin-node12:59:281
169940,0watchdog/10-21swapper/112:44:281
169940,0watchdog/10-21swapper/111:44:281
169940,0watchdog/10-21swapper/110:39:201
149940,0migration/07148-21ksmtuned09:04:290
149940,0migration/02927-21sh11:59:240
149940,0migration/028494-21fschecks_time12:14:220
149940,0migration/024334-21irqcore12:49:250
149940,0migration/011147-21sendmail_mailst11:04:310
339930,0migration/326365-21kthreadcore09:19:263
326759932,0cyclictest3250-21irqbalance08:09:142
326759930,0cyclictest5377-21perl09:29:222
326739932,0cyclictest4944-21awk12:19:231
326739932,0cyclictest16463-21awk09:14:221
326739930,0cyclictest22369-21aten2.4-expect08:34:181
326729933,0cyclictest24840-21kworker/0:210:54:340
326729933,0cyclictest24840-21kworker/0:210:39:180
326729933,0cyclictest14363-21kworker/0:112:54:160
326729933,0cyclictest14363-21kworker/0:111:49:260
326729932,0cyclictest6654-21awk09:49:250
326729932,0cyclictest6509-21tune2fs12:39:210
326729932,0cyclictest22895-21grep10:14:350
326729930,0cyclictest31214-21perl11:19:220
326729930,0cyclictest21231-21perl09:39:210
326729930,0cyclictest15257-21grep12:44:240
326729930,0cyclictest13313-21perl12:24:220
29815030,0irq/29-eth0-tx-7981-21aten2.4-expect08:24:200
29805030,0irq/28-eth0-rx-0-21swapper/309:04:183
29805030,0irq/28-eth0-rx-0-21swapper/308:56:543
29805030,0irq/28-eth0-rx-0-21swapper/307:54:193
29805030,0irq/28-eth0-rx-0-21swapper/307:34:203
179930,0migration/126648-21kthreadcore09:59:261
179930,0migration/125439-21kthreadcore12:49:261
179930,0migration/11539-21fschecks_time09:04:201
169930,0watchdog/10-21swapper/111:24:201
169930,0watchdog/10-21swapper/110:54:241
326739920,0cyclictest4545-21runrttasks09:29:091
169920,0watchdog/10-21swapper/108:59:111
169920,0watchdog/10-21swapper/108:54:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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