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2026-06-25 - 15:19
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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 Thu Jun 25, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2296825242,0sleep30-21swapper/307:22:543
2321923930,0sleep10-21swapper/107:25:481
2296723127,0sleep20-21swapper/207:22:532
2289422925,0sleep00-21swapper/007:22:020
339960,0migration/330903-21fschecks_count12:26:193
339960,0migration/330061-21sh11:31:083
339960,0migration/329043-21sh10:34:233
339960,0migration/328431-21munin-node08:36:203
339960,0migration/328177-21munin-node11:11:233
339960,0migration/324089-21taskset10:51:123
339960,0migration/323750-21taskset12:40:263
339960,0migration/322556-21sh09:53:053
329960,0watchdog/325151-21if_err_eth009:56:213
29815060,0irq/29-eth0-tx-28383-21if_err_eth112:06:232
29815060,0irq/29-eth0-tx-27625-21cpuspeed_turbos08:36:170
29815060,0irq/29-eth0-tx-0-21swapper/007:31:160
29805060,0irq/28-eth0-rx-2635-21diskstats08:41:193
29805060,0irq/28-eth0-rx-2181-21crond09:26:063
29805060,0irq/28-eth0-rx-19954-21ssh12:18:053
29805060,0irq/28-eth0-rx-1819-21ssh12:46:213
29805060,0irq/28-eth0-rx-1056-21switchtime10:16:313
29805060,0irq/28-eth0-rx-0-21swapper/312:44:553
233139960,0cyclictest0-21swapper/210:56:302
8305050,0irq/26-0000:00:30630-21cut07:31:062
339950,0migration/39542-21taskset09:27:523
339950,0migration/39542-21taskset09:27:523
339950,0migration/3682-21cpuspeed_turbos10:01:183
339950,0migration/332104-21irqrtprio07:31:223
339950,0migration/329942-21smart_nvme0n108:11:283
339950,0migration/329317-21kthreadcore12:06:253
339950,0migration/32537-21fschecks_count07:56:203
339950,0migration/324815-21sendmail_mailst12:01:273
339950,0migration/323850-21kthreadcore08:31:243
339950,0migration/319479-21taskset07:42:323
339950,0migration/317512-21munin-node08:06:203
339950,0migration/313079-21latency_hist09:11:063
339950,0migration/311522-21cpuspeed_turbos09:31:183
339950,0migration/310414-21munin-node08:01:203
329950,0watchdog/36314-21runrttasks12:52:343
329950,0watchdog/33548-21kthreadcore09:01:253
329950,0watchdog/321670-21python10:46:293
329950,0watchdog/313658-21sh10:42:373
329950,0watchdog/312383-21tr12:31:263
329950,0watchdog/30-21swapper/311:16:453
29815050,0irq/29-eth0-tx-6832-21munin-node10:41:182
29815050,0irq/29-eth0-tx-5868-21ssh10:40:162
29815050,0irq/29-eth0-tx-5802-21munin-node08:21:210
29815050,0irq/29-eth0-tx-3909-21munin-node11:31:252
29815050,0irq/29-eth0-tx-31550-21ssh09:58:282
29815050,0irq/29-eth0-tx-31103-21munin-node09:01:220
29815050,0irq/29-eth0-tx-27815-21ssh09:38:322
29815050,0irq/29-eth0-tx-278082sleep009:21:180
29815050,0irq/29-eth0-tx-15382-21cpuspeed_turbos09:51:182
29815050,0irq/29-eth0-tx-12431-21munin-node10:26:272
29815050,0irq/29-eth0-tx-10216-21grep10:06:192
29815050,0irq/29-eth0-tx-0-21swapper/212:39:312
29815050,0irq/29-eth0-tx-0-21swapper/211:47:522
29815050,0irq/29-eth0-tx-0-21swapper/210:47:552
29815050,0irq/29-eth0-tx-0-21swapper/007:58:470
29805050,0irq/28-eth0-rx-909-21cpu11:51:183
29805050,0irq/28-eth0-rx-467-21munin-node10:56:253
29805050,0irq/28-eth0-rx-3828-21open_inodes10:36:273
29805050,0irq/28-eth0-rx-30876-21kthreadcore09:41:243
29805050,0irq/28-eth0-rx-27895-21ssh11:26:323
29805050,0irq/28-eth0-rx-25903-21kthreadcore11:46:253
29805050,0irq/28-eth0-rx-25317-21cut09:16:233
29805050,0irq/28-eth0-rx-22692-21irqcore12:21:233
29805050,0irq/28-eth0-rx-16685-21ssh11:41:233
29805050,0irq/28-eth0-rx-0-21swapper/312:11:523
29805050,0irq/28-eth0-rx-0-21swapper/311:21:233
29805050,0irq/28-eth0-rx-0-21swapper/311:10:043
29805050,0irq/28-eth0-rx-0-21swapper/311:03:463
29805050,0irq/28-eth0-rx-0-21swapper/310:22:123
29805050,0irq/28-eth0-rx-0-21swapper/310:10:303
29805050,0irq/28-eth0-rx-0-21swapper/309:50:333
29805050,0irq/28-eth0-rx-0-21swapper/309:36:233
29805050,0irq/28-eth0-rx-0-21swapper/307:46:103
259950,0migration/227073-21latency_hist07:51:062
259950,0migration/214505-21kthreadcore09:31:242
259950,0migration/214012-21idleruntime08:26:212
233139955,0cyclictest0-21swapper/210:53:492
233139955,0cyclictest0-21swapper/209:01:342
233139950,0cyclictest0-21swapper/211:59:532
233139950,0cyclictest0-21swapper/210:26:042
233129955,0cyclictest0-21swapper/112:47:231
233129955,0cyclictest0-21swapper/112:15:231
233129955,0cyclictest0-21swapper/111:33:551
233129955,0cyclictest0-21swapper/109:06:301
233129950,0cyclictest0-21swapper/112:51:481
233129950,0cyclictest0-21swapper/111:18:371
233119955,0cyclictest0-21swapper/012:44:260
233119955,0cyclictest0-21swapper/012:16:320
233119955,0cyclictest0-21swapper/011:21:300
233119955,0cyclictest0-21swapper/009:16:200
233119955,0cyclictest0-21swapper/008:06:290
233119954,0cyclictest2313-21kworker/0:109:26:130
233119954,0cyclictest2313-21kworker/0:109:26:130
233119950,0cyclictest0-21swapper/010:24:260
233119950,0cyclictest0-21swapper/009:34:460
179950,0migration/17350-21sh10:01:321
179950,0migration/16980-21cpuspeed_turbos11:36:181
179950,0migration/15830-21sh10:56:241
179950,0migration/130509-21cpuspeed_turbos12:26:181
179950,0migration/115522-21kthreadcore11:56:251
169950,0watchdog/13743-21kthreadcore08:16:251
169950,0watchdog/12559-21ssh09:26:171
169950,0watchdog/12559-21ssh09:26:171
149950,0migration/07632-21sh10:02:130
149950,0migration/07617-21kthreadcore12:11:250
149950,0migration/06721-21sh10:56:250
149950,0migration/05704-21sh09:46:040
149950,0migration/05484-21kthreadcore12:46:240
149950,0migration/03254-21idleruntime08:41:210
149950,0migration/032091-21kthreadcore11:11:260
149950,0migration/031828-21gltestperf08:16:200
149950,0migration/029603-21kthreadcore07:51:210
149950,0migration/029345-21taskset10:35:090
149950,0migration/026169-21kthreadcore11:46:240
149950,0migration/025244-21sh11:06:580
149950,0migration/022864-21kthreadcore09:36:230
149950,0migration/02274-21kthreadcore12:26:230
149950,0migration/022635-21kthreadcore07:46:220
149950,0migration/021768-21kthreadcore12:01:230
149950,0migration/019538-21kthreadcore08:51:230
149950,0migration/018754-21kthreadcore09:51:240
149950,0migration/016210-21kthreadcore08:26:240
149950,0migration/015288-21munin-node08:01:250
149950,0migration/015237-21kthreadcore10:06:240
149950,0migration/011411-21kthreadcore11:56:230
149950,0migration/010478-21kthreadcore10:41:240
8305040,0irq/26-0000:00:25044-21if_eth1.308:56:222
8305040,0irq/26-0000:00:0-21swapper/209:17:572
339940,0migration/39831-21diskmemload11:56:183
339940,0migration/322230-21kthreadcore08:51:243
339940,0migration/311056-21kthreadcore08:21:243
329940,0watchdog/30-21swapper/311:36:093
329940,0watchdog/30-21swapper/307:26:253
29815040,0irq/29-eth0-tx-7906-21ssh11:36:232
29815040,0irq/29-eth0-tx-2188-21diskmemload11:16:462
29815040,0irq/29-eth0-tx-21300-21ssh11:26:132
29815040,0irq/29-eth0-tx-12506-21munin-node11:21:162
29815040,0irq/29-eth0-tx-0-21swapper/212:52:032
29815040,0irq/29-eth0-tx-0-21swapper/212:46:352
29815040,0irq/29-eth0-tx-0-21swapper/212:41:142
29815040,0irq/29-eth0-tx-0-21swapper/212:31:192
29815040,0irq/29-eth0-tx-0-21swapper/212:26:122
29815040,0irq/29-eth0-tx-0-21swapper/211:11:102
29815040,0irq/29-eth0-tx-0-21swapper/211:06:542
29815040,0irq/29-eth0-tx-0-21swapper/210:17:012
29815040,0irq/29-eth0-tx-0-21swapper/210:11:152
29815040,0irq/29-eth0-tx-0-21swapper/210:02:242
29815040,0irq/29-eth0-tx-0-21swapper/209:46:082
29815040,0irq/29-eth0-tx-0-21swapper/209:41:212
29815040,0irq/29-eth0-tx-0-21swapper/008:11:170
29805040,0irq/28-eth0-rx-19602-21ssh10:27:433
29805040,0irq/28-eth0-rx-10020-21cut07:36:233
29805040,0irq/28-eth0-rx-0-21swapper/310:11:203
29805040,0irq/28-eth0-rx-0-21swapper/309:11:233
29805040,0irq/28-eth0-rx-0-21swapper/308:16:173
29805040,0irq/28-eth0-rx-0-21swapper/307:51:153
259940,0migration/28752-21processes09:26:272
259940,0migration/28752-21processes09:26:272
259940,0migration/26422-21kthreadcore11:51:242
259940,0migration/218568-21aten_r1power_fr12:01:162
259940,0migration/217393-21fschecks_time08:06:192
259940,0migration/212240-21unixbench-2d08:21:312
259940,0migration/210758-21kthreadcore07:36:232
249940,0watchdog/215434-21munin-node11:01:252
249940,0watchdog/214260-21munin-node09:11:212
249940,0watchdog/20-21swapper/208:16:252
249940,0watchdog/20-21swapper/207:26:252
233139943,0cyclictest9248-21sadc08:46:062
233139943,0cyclictest3571-21lldpd07:44:132
233139943,0cyclictest3524-21snmpd12:22:132
233139943,0cyclictest3524-21snmpd12:11:122
233139943,0cyclictest3524-21snmpd11:41:122
233139943,0cyclictest3524-21snmpd07:56:392
233139943,0cyclictest28294-21awk07:51:192
233139943,0cyclictest22416-21awk10:31:222
233139943,0cyclictest21303-21awk08:31:222
233139943,0cyclictest17854-21awk08:51:212
233139943,0cyclictest13837-21awk12:16:222
233139943,0cyclictest10532-21awk08:46:202
233129944,0cyclictest0-21swapper/111:42:451
233129944,0cyclictest0-21swapper/110:51:111
233129944,0cyclictest0-21swapper/110:36:501
233129944,0cyclictest0-21swapper/110:06:441
233129943,0cyclictest3571-21lldpd09:51:451
233129943,0cyclictest3571-21lldpd08:43:441
233129943,0cyclictest3571-21lldpd08:39:141
233129943,0cyclictest32186-21awk09:01:211
233129943,0cyclictest28697-21awk09:21:221
233129943,0cyclictest25274-21awk09:56:221
233129943,0cyclictest13617-21awk11:21:201
233129943,0cyclictest10512-21awk08:01:211
233129940,0cyclictest0-21swapper/108:25:411
233119944,0cyclictest0-21swapper/009:57:190
233119943,0cyclictest7787-21awk12:31:230
233119943,0cyclictest3571-21lldpd09:49:450
233119943,0cyclictest3524-21snmpd10:12:260
233119943,0cyclictest22575-21awk12:21:220
233119943,0cyclictest13909-21awk07:41:210
233119940,0cyclictest0-21swapper/012:56:060
233119940,0cyclictest0-21swapper/011:39:290
179940,0migration/16836-21kthreadcore10:21:231
179940,0migration/128432-21kthreadcore12:41:251
179940,0migration/128329-21taskset11:27:201
179940,0migration/127874-21fschecks_count12:06:211
179940,0migration/122808-21kernelversion10:31:231
179940,0migration/12165-21kthreadcore07:31:231
179940,0migration/121625-21irqcore09:16:211
179940,0migration/120822-21fschecks_count08:31:201
179940,0migration/118945-21fschecks_count11:06:191
179940,0migration/118719-21ntp_offset12:16:261
179940,0migration/118272-21kthreadcore08:06:231
179940,0migration/115203-21latency_hist10:46:061
179940,0migration/113819-21kthreadcore08:46:231
179940,0migration/113199-21timerandwakeup12:31:331
179940,0migration/112978-21latency_hist08:26:061
179940,0migration/112486-21taskset07:39:541
179940,0migration/110923-21kthreadcore10:41:241
169940,0watchdog/17707-21ssh11:51:501
169940,0watchdog/1551-21memory10:16:251
169940,0watchdog/129055-21kthreadcore07:51:211
169940,0watchdog/128011-21perl11:11:211
169940,0watchdog/126249-21smartctl07:46:291
169940,0watchdog/122890-21python08:51:291
169940,0watchdog/122687-21cut10:11:251
169940,0watchdog/120784-21ssh10:30:451
169940,0watchdog/10-21swapper/112:22:141
169940,0watchdog/10-21swapper/109:41:251
169940,0watchdog/10-21swapper/108:56:291
149940,0migration/05948-21latency_hist09:06:060
149940,0migration/031438-21irqcore10:36:230
149940,0migration/03141-21runrttasks10:20:520
149940,0migration/028452-21kthreadcore07:26:250
149940,0migration/028305-21runrttasks11:27:160
149940,0migration/018405-21kthreadcore12:36:240
149940,0migration/018198-21kthreadcore10:26:250
149940,0migration/012983-21kthreadcore08:46:230
329930,0watchdog/30-21swapper/308:46:493
329930,0watchdog/30-21swapper/308:26:213
233139933,0cyclictest305350irq/27-eth108:11:192
233139932,0cyclictest29296-21cut09:21:242
233139932,0cyclictest28510-21awk08:36:212
233139930,0cyclictest9642-21cpuspeed_turbos08:01:172
233139930,0cyclictest0-21swapper/209:06:062
233129933,0cyclictest3571-21lldpd07:56:141
233129932,0cyclictest7241-21awk09:46:231
233129932,0cyclictest30656-21sensors11:46:291
233129932,0cyclictest16663-21awk12:36:221
233129932,0cyclictest16220-21cut09:11:241
233129930,0cyclictest0-21swapper/111:01:251
233119933,0cyclictest2313-21kworker/0:108:56:070
233119933,0cyclictest12871-21kworker/0:012:06:080
233119933,0cyclictest12871-21kworker/0:011:51:100
233119933,0cyclictest12871-21kworker/0:011:41:160
233119933,0cyclictest12871-21kworker/0:011:31:120
233119933,0cyclictest12871-21kworker/0:011:16:080
233119933,0cyclictest12871-21kworker/0:011:01:100
233119933,0cyclictest12871-21kworker/0:010:51:100
233119933,0cyclictest12871-21kworker/0:010:46:140
233119932,0cyclictest13228-21munin-node09:11:220
233119931,0cyclictest0-21swapper/008:31:100
233119930,0cyclictest6317-21perl07:36:180
179930,0migration/125253-21diskmemload12:01:371
169930,0watchdog/10-21swapper/109:36:171
169930,0watchdog/10-21swapper/109:31:211
169930,0watchdog/10-21swapper/108:11:211
169930,0watchdog/10-21swapper/107:41:091
169930,0watchdog/10-21swapper/107:26:251
29805020,0irq/28-eth0-rx-0-21swapper/308:56:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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