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2026-05-13 - 09:56
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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
Characteristics of the 792 highest latencies:
System rackeslot2.osadl.org (updated Wed May 13, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
256768521970,2sleep30-21swapper/321:15:203
256768521970,2sleep30-21swapper/321:15:203
25764242720,1sleep02576422-21ssh21:20:420
25764242720,1sleep02576422-21ssh21:20:420
28447622710,1sleep12844761-21ssh00:18:291
26234142700,1sleep02623412-21ssh21:54:370
24648442480,0sleep02464848-21tr19:55:180
28511142260,2sleep02851111-21ssh00:20:240
2401842992616,2cyclictest0-21swapper/100:10:021
2401842992615,2cyclictest0-21swapper/121:10:021
2401842992421,2cyclictest2408497-21forks19:15:011
2401842992414,3cyclictest0-21swapper/121:55:011
2401841992421,2cyclictest2447958-21cron19:45:000
24076922230,2sleep30-21swapper/319:10:243
2401842992320,2cyclictest2769110-21systemd23:30:011
2401842992320,2cyclictest2498144-21latency_hist20:25:001
2401841992320,2cyclictest2692672-21idleruntime-cro22:40:000
2401841992314,8cyclictest2662173-21munin-run22:20:030
2401842992219,2cyclictest2479410-21/usr/sbin/munin20:10:011
240184199226,6cyclictest3834332-21rtkit-daemon22:40:200
2401841992219,2cyclictest2677560-21/usr/sbin/munin22:30:030
2401841992216,2cyclictest383433398rtkit-daemon23:16:060
2401841992214,7cyclictest3851875-21systemd-journal21:15:020
2401841992214,7cyclictest2704355-21kthreadcore22:45:190
2401841992213,5cyclictest2669778-21latency_hist22:25:020
2401842992118,2cyclictest3880722-21gmain22:25:011
2401842992118,2cyclictest2715823-21sh22:55:001
2401842992112,3cyclictest0-21swapper/100:30:031
2401842992112,2cyclictest2447989-21latency_hist19:45:001
2401842992111,2cyclictest134050irq/121-eno123:45:161
2401841992118,2cyclictest2510858-21apt-key20:35:010
2401841992114,6cyclictest2717507-21kthreadcore22:55:180
2401841992112,2cyclictest134050irq/121-eno119:20:190
2401841992111,6cyclictest2874244-21timerandwakeup00:35:240
2401847992017,1cyclictest0-21swapper/219:45:112
240184299209,3cyclictest0-21swapper/122:42:361
240184299208,2cyclictest134050irq/121-eno121:20:181
240184299208,2cyclictest134050irq/121-eno121:20:171
2401842992017,2cyclictest3834332-21rtkit-daemon20:03:141
2401842992017,2cyclictest2608438-21systemd21:45:001
2401842992016,3cyclictest2791677-21idleruntime-cro23:45:001
240184199209,7cyclictest2610464-21kthreadcore21:45:180
240184199209,7cyclictest2600673-21diskmemload21:39:530
240184199208,8cyclictest2583924-21vmstat21:25:270
240184199207,7cyclictest2485562-21cron20:15:000
2401841992017,2cyclictest2408067-21sh19:15:000
2401841992016,3cyclictest2526617-21kthreadcore20:45:190
2401841992013,6cyclictest2863742-21kthreadcore00:30:200
2401841992012,4cyclictest2822902-21cstates00:05:130
2401841992011,5cyclictest3851702-21mta-sts-daemon23:27:180
2401841992011,5cyclictest0-21swapper/023:05:170
2401841992010,6cyclictest2797252-21grep23:45:210
2401841992010,5cyclictest2644145-21missed_timers22:05:200
2401841992010,3cyclictest2854504-21irqrtprio00:25:170
2649091190,2phc2sys0-21swapper/322:44:373
240184299199,2cyclictest134050irq/121-eno100:00:141
240184299197,3cyclictest0-21swapper/122:12:361
2401842991916,2cyclictest2600783-21sendmail21:40:001
2401842991916,2cyclictest2409095-21kthreadcore19:15:021
2401842991916,2cyclictest0-21swapper/123:40:011
2401842991914,4cyclictest2674874-21memory22:25:191
240184199198,7cyclictest2629561-21grep21:55:250
240184199198,7cyclictest2562939-21/usr/sbin/munin21:15:160
240184199198,7cyclictest2562939-21/usr/sbin/munin21:15:160
240184199198,7cyclictest2055147-21kworker/u16:3+nfsiod22:10:160
240184199197,5cyclictest2761551-21ssh23:25:010
2401841991916,2cyclictest0-21swapper/020:40:000
2401841991915,3cyclictest2810190-21kthreadcore23:55:180
2401841991915,3cyclictest2810190-21kthreadcore23:55:180
2401841991915,3cyclictest2802588-21kthreadcore23:50:200
2401841991915,3cyclictest2741858-21kthreadcore23:10:200
2401841991914,1cyclictest191rcu_preempt23:30:050
2401841991913,5cyclictest3841370-21avahi-daemon19:15:230
2401841991913,5cyclictest2530104-21aten2.4-expect20:50:120
2401841991912,6cyclictest2816140-21irqrtprio00:00:190
2401841991912,6cyclictest0-21swapper/022:55:000
2401841991911,7cyclictest0-21swapper/022:00:180
2401841991910,5cyclictest2837421-21apt-get00:15:020
2649091180,2phc2sys0-21swapper/300:21:123
2401847991816,1cyclictest0-21swapper/222:00:002
2401847991815,1cyclictest0-21swapper/219:15:012
2401847991815,1cyclictest0-21swapper/200:35:002
240184299187,3cyclictest0-21swapper/100:11:381
240184299186,3cyclictest0-21swapper/122:03:371
2401842991816,1cyclictest0-21swapper/123:25:001
2401842991815,2cyclictest2739481-21df23:10:151
2401842991815,2cyclictest1290-21dbus-daemon23:10:011
2401842991815,2cyclictest0-21swapper/100:40:011
2401842991815,2cyclictest0-21swapper/100:25:011
240184199189,5cyclictest2606520-21ssh21:40:230
240184199188,6cyclictest2586097-21ssh21:30:140
240184199186,8cyclictest2638852-21kworker/u16:0+xprtiod23:42:550
2401841991815,2cyclictest2778253-21kthreadcore23:35:180
2401841991815,2cyclictest2542284-21sh21:00:010
2401841991815,2cyclictest2435585-21systemd19:35:010
2401841991814,3cyclictest2545414-21kthreadcore21:00:190
2401841991814,3cyclictest2495085-21kthreadcore20:20:180
2401841991814,3cyclictest2438650-21kthreadcore19:35:180
2401841991814,3cyclictest2426153-21kthreadcore19:25:200
2401841991811,6cyclictest2679107-21kthreadcore22:30:160
2649091170,2phc2sys0-21swapper/321:47:413
2649091170,1phc2sys0-21swapper/320:35:143
2401847991714,1cyclictest0-21swapper/222:52:482
2401847991714,1cyclictest0-21swapper/221:10:012
2401847991714,1cyclictest0-21swapper/220:20:002
2401847991714,1cyclictest0-21swapper/200:20:012
2401847991714,1cyclictest0-21swapper/200:10:002
2401847991711,3cyclictest0-21swapper/200:25:242
240184299177,1cyclictest383433398rtkit-daemon19:57:251
2401842991714,2cyclictest3834332-21rtkit-daemon19:27:051
2401842991714,2cyclictest2731120-21latency_hist23:05:001
2401842991714,2cyclictest2640463-21sed22:05:171
2401842991714,2cyclictest2544075-21kthreadcore21:00:181
2401842991714,2cyclictest2457350-21kthreadcore19:50:181
2401842991714,2cyclictest2457350-21kthreadcore19:50:181
2401842991714,2cyclictest0-21swapper/119:40:001
2401842991713,3cyclictest2853924-21fschecks_count00:25:151
2401842991712,3cyclictest2581556-21kthreadcore21:25:201
240184199178,5cyclictest2498606-21aten2.4-expect20:25:130
240184199177,6cyclictest3834332-21rtkit-daemon20:00:070
240184199177,6cyclictest2727958-21kthreadcore23:00:210
2401841991714,2cyclictest2839039-21irqcore00:15:170
2401841991714,2cyclictest2473458-21aten_repower_po20:05:120
2401841991714,2cyclictest2457438-21kthreadcore19:50:180
2401841991714,2cyclictest2457438-21kthreadcore19:50:180
2401841991713,3cyclictest2450831-21kthreadcore19:45:170
2401841991712,4cyclictest2521199-21kthreadcore20:40:200
383433398160,2rtkit-daemon0-21swapper/122:15:551
2649091163,6phc2sys0-21swapper/323:25:123
2649091161,7phc2sys0-21swapper/319:52:373
2649091161,7phc2sys0-21swapper/319:52:373
2649091160,1phc2sys0-21swapper/300:39:213
2401847991614,1cyclictest0-21swapper/221:50:012
2401847991613,1cyclictest0-21swapper/223:15:142
2401847991613,1cyclictest0-21swapper/222:30:012
2401847991613,1cyclictest0-21swapper/221:42:222
2401847991613,1cyclictest0-21swapper/219:34:592
2401847991612,2cyclictest0-21swapper/219:15:032
2401847991611,3cyclictest0-21swapper/221:40:012
240184299165,2cyclictest17350irq/127-ahci[0000:00:17.0]22:35:021
2401842991613,2cyclictest3851702-21mta-sts-daemon21:57:431
2401842991613,2cyclictest2806961-21grep23:55:011
2401842991613,2cyclictest2717031-21if_enp1s0.822:55:161
2401842991613,2cyclictest2536973-21gltestperf20:55:131
2401842991613,2cyclictest2535930-21cron20:55:001
2401842991613,2cyclictest2417910-21irqcore19:20:161
2401842991613,2cyclictest0-21swapper/121:35:011
2401842991612,3cyclictest2505984-21kthreadcore20:30:161
2401842991612,2cyclictest0-21swapper/121:50:001
2401841991613,2cyclictest2551775-21kthreadcore21:05:170
2401841991613,2cyclictest2486164-21cpuspeed_turbos20:15:120
2649091151,3phc2sys0-21swapper/321:00:113
2649091150,2phc2sys0-21swapper/322:35:343
240184799156,4cyclictest0-21swapper/220:05:102
2401847991512,1cyclictest0-21swapper/223:10:222
2401847991512,1cyclictest0-21swapper/221:29:042
2401847991512,1cyclictest0-21swapper/221:17:242
2401847991512,1cyclictest0-21swapper/221:17:242
2401847991512,1cyclictest0-21swapper/220:04:252
2401847991512,1cyclictest0-21swapper/219:25:012
2401847991512,1cyclictest0-21swapper/200:11:482
2401847991511,2cyclictest0-21swapper/223:47:232
2401847991511,2cyclictest0-21swapper/221:50:552
240184299155,2cyclictest134050irq/121-eno121:15:201
240184299155,2cyclictest134050irq/121-eno121:15:201
240184299153,4cyclictest2435075-21sshd19:30:371
2401842991512,2cyclictest2770385-21irqcore23:30:161
2401842991512,2cyclictest2686180-21head22:35:151
2401842991512,2cyclictest0-21swapper/121:10:261
2401842991512,2cyclictest0-21swapper/119:10:031
2401842991510,3cyclictest2511242-21tail20:35:101
2649091140,2phc2sys0-21swapper/321:54:043
2649091140,2phc2sys0-21swapper/321:35:543
2649091140,2phc2sys0-21swapper/320:19:553
2649091140,2phc2sys0-21swapper/300:08:303
240184799146,3cyclictest0-21swapper/223:50:102
2401847991412,1cyclictest0-21swapper/222:35:012
2401847991412,1cyclictest0-21swapper/221:30:202
2401847991412,1cyclictest0-21swapper/219:40:102
2401847991412,1cyclictest0-21swapper/200:05:012
2401847991411,1cyclictest0-21swapper/223:30:172
2401847991411,1cyclictest0-21swapper/223:20:202
2401847991411,1cyclictest0-21swapper/223:01:522
2401847991411,1cyclictest0-21swapper/222:40:192
2401847991411,1cyclictest0-21swapper/222:36:572
2401847991411,1cyclictest0-21swapper/222:17:302
2401847991411,1cyclictest0-21swapper/221:24:102
2401847991411,1cyclictest0-21swapper/221:24:102
2401847991411,1cyclictest0-21swapper/221:00:002
2401847991411,1cyclictest0-21swapper/219:55:002
2401847991411,1cyclictest0-21swapper/219:55:002
2401847991411,1cyclictest0-21swapper/219:40:002
2401847991411,1cyclictest0-21swapper/200:23:202
2401847991410,2cyclictest0-21swapper/223:39:062
240184799140,4cyclictest26369532sleep222:00:262
240184299144,2cyclictest17350irq/127-ahci[0000:00:17.0]22:45:151
240184299144,2cyclictest0-21swapper/120:14:051
2401842991411,2cyclictest2812271-21needreboot23:55:191
2401842991411,2cyclictest2812271-21needreboot23:55:191
2401842991411,2cyclictest2746792-21cpuspeed_turbos23:15:131
2401842991411,2cyclictest2523548-21latency_hist20:45:011
2401842991410,3cyclictest2450175-21kthreadcore19:45:161
27306692130,6sleep30-21swapper/323:04:043
2649091134,2phc2sys0-21swapper/323:45:133
2649091131,6phc2sys0-21swapper/319:25:123
2649091131,5phc2sys0-21swapper/321:30:113
2649091131,5phc2sys0-21swapper/319:20:113
2649091130,4phc2sys0-21swapper/323:58:293
2649091130,4phc2sys0-21swapper/323:58:293
2649091130,3phc2sys0-21swapper/322:02:313
2649091130,3phc2sys0-21swapper/321:05:213
2649091130,2phc2sys0-21swapper/323:14:193
2649091130,2phc2sys0-21swapper/322:26:293
2649091130,2phc2sys0-21swapper/319:39:123
2649091130,2phc2sys0-21swapper/300:16:323
2649091130,1phc2sys0-21swapper/320:52:333
240184799139,2cyclictest0-21swapper/223:57:072
240184799139,2cyclictest0-21swapper/223:57:072
240184799139,2cyclictest0-21swapper/222:21:442
240184799131,7cyclictest24795712sleep220:10:122
2401847991311,1cyclictest0-21swapper/223:45:022
2401847991311,1cyclictest0-21swapper/222:45:192
2401847991310,1cyclictest0-21swapper/223:25:192
2401847991310,1cyclictest0-21swapper/222:10:572
2401847991310,1cyclictest0-21swapper/222:07:312
2401847991310,1cyclictest0-21swapper/221:10:142
2401847991310,1cyclictest0-21swapper/220:50:002
2401847991310,1cyclictest0-21swapper/220:40:142
2401847991310,1cyclictest0-21swapper/220:23:532
240184799130,1cyclictest0-21swapper/200:37:122
240184299137,5cyclictest2523693-21/usr/sbin/munin20:45:231
240184299135,3cyclictest134050irq/121-eno120:15:211
2401842991310,2cyclictest2499541-21irqcore20:25:171
240184199135,3cyclictest2401684-21latency_hist19:10:010
2649091123,2phc2sys0-21swapper/322:15:033
2649091120,3phc2sys0-21swapper/321:55:113
2649091120,2phc2sys0-21swapper/323:50:103
2649091120,2phc2sys0-21swapper/322:57:393
2649091120,2phc2sys0-21swapper/321:29:053
2649091120,2phc2sys0-21swapper/321:21:113
2649091120,2phc2sys0-21swapper/321:21:113
2649091120,2phc2sys0-21swapper/319:45:223
2649091120,2phc2sys0-21swapper/300:31:153
2649091120,1phc2sys0-21swapper/319:06:543
240184799129,1cyclictest0-21swapper/223:06:242
240184799129,1cyclictest0-21swapper/222:56:182
240184799129,1cyclictest0-21swapper/220:50:102
240184799129,1cyclictest0-21swapper/220:35:182
240184799129,1cyclictest0-21swapper/220:35:002
240184799129,1cyclictest0-21swapper/219:25:382
2401847991210,1cyclictest0-21swapper/221:05:022
2401847991210,1cyclictest0-21swapper/219:10:012
2649091115,2phc2sys0-21swapper/322:30:093
2649091112,2phc2sys0-21swapper/319:15:033
2649091111,2phc2sys0-21swapper/323:35:193
2649091111,2phc2sys0-21swapper/322:10:023
2649091110,5phc2sys0-21swapper/321:40:093
2649091110,3phc2sys0-21swapper/323:15:113
2649091110,2phc2sys0-21swapper/323:34:313
2649091110,2phc2sys0-21swapper/323:20:283
2649091110,2phc2sys0-21swapper/322:21:483
2649091110,2phc2sys0-21swapper/319:58:303
2649091110,1phc2sys0-21swapper/323:42:083
2649091110,1phc2sys0-21swapper/320:46:083
2649091110,1phc2sys0-21swapper/320:33:543
240184799119,1cyclictest0-21swapper/220:25:182
240184799119,1cyclictest0-21swapper/219:55:182
2649091101,2phc2sys0-21swapper/322:45:213
2649091101,2phc2sys0-21swapper/319:40:083
2649091100,2phc2sys0-21swapper/323:07:173
2649091100,2phc2sys0-21swapper/322:54:553
2649091100,2phc2sys0-21swapper/322:10:583
2649091100,2phc2sys0-21swapper/321:14:533
2649091100,2phc2sys0-21swapper/320:00:203
2649091100,2phc2sys0-21swapper/300:25:183
2649091100,2phc2sys0-21swapper/300:01:523
2649091100,1phc2sys0-21swapper/300:12:503
264909196,1phc2sys0-21swapper/319:33:493
264909191,3phc2sys0-21swapper/320:10:203
264909191,2phc2sys0-21swapper/320:55:183
264909190,2phc2sys0-21swapper/320:40:193
264909190,2phc2sys0-21swapper/320:25:243
264909190,2phc2sys0-21swapper/320:20:193
264909190,1phc2sys0-21swapper/320:07:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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