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2026-07-01 - 01:52
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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 highest latencies:
System rack1slot1.osadl.org (updated Wed Jul 01, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318842233159,24sleep20-21swapper/219:06:332
318982219157,23sleep10-21swapper/119:06:451
319222210159,25sleep00-21swapper/019:07:050
318282200160,26sleep30-21swapper/319:05:513
298722490,0sleep10-21swapper/121:15:161
130842220,1sleep121-21ksoftirqd/100:35:181
32238991615,1cyclictest9-21ksoftirqd/020:15:000
3223899119,1cyclictest9-21ksoftirqd/023:35:000
3223899114,4cyclictest1865-21cat22:50:000
3223899112,4cyclictest25082-21diskmemload23:10:000
3223899109,1cyclictest9-21ksoftirqd/023:20:000
3223899109,1cyclictest9-21ksoftirqd/000:30:000
3223899108,1cyclictest9-21ksoftirqd/020:50:000
3223899107,1cyclictest9-21ksoftirqd/020:45:000
3223899103,4cyclictest19693-21perf22:30:000
3223899101,4cyclictest22952-21perf21:50:000
322519990,3cyclictest24149-21/usr/sbin/munin23:20:203
322449995,3cyclictest0-21swapper/222:25:122
322449992,5cyclictest7499-21/usr/sbin/munin22:55:222
322389998,1cyclictest9-21ksoftirqd/022:45:000
322389997,1cyclictest9-21ksoftirqd/020:35:000
322389997,1cyclictest9-21ksoftirqd/019:40:010
322389990,5cyclictest6059-21cat23:40:010
322389990,4cyclictest22778-21perf21:05:000
322519987,1cyclictest18270-21sh22:25:553
322519986,1cyclictest14420-21cat20:45:153
322519982,5cyclictest31770-21apt-get20:15:113
322519980,6cyclictest0-21swapper/321:16:143
322519980,4cyclictest14662-21sh23:05:193
322449987,1cyclictest28-21ksoftirqd/222:10:002
322449986,1cyclictest61650irq/122-eno122:45:172
322449986,1cyclictest28-21ksoftirqd/220:50:002
322449982,5cyclictest26652-21sh23:22:302
322449980,8cyclictest0-21swapper/221:18:482
322449980,6cyclictest0-21swapper/223:02:322
322419980,6cyclictest203-21jbd2/sda2-822:30:051
322419980,4cyclictest0-21swapper/121:00:101
322389987,1cyclictest9-21ksoftirqd/023:14:270
322389987,1cyclictest9-21ksoftirqd/021:30:000
322389986,1cyclictest9-21ksoftirqd/022:35:190
322389986,1cyclictest9-21ksoftirqd/019:45:000
322389985,3cyclictest0-21swapper/020:15:200
322389981,6cyclictest14077-21cat22:20:200
322389981,6cyclictest0-21swapper/023:55:180
322389981,1cyclictest15469-21ssh00:39:550
322389980,7cyclictest31493-21memory22:00:170
322389980,7cyclictest21459-21timerandwakeup22:30:200
322389980,7cyclictest0-21swapper/022:50:160
19636280,0sleep20-21swapper/223:13:222
322519976,1cyclictest35-21ksoftirqd/320:21:113
322519976,1cyclictest12930-21cat21:35:143
322519975,1cyclictest3952-21cat19:15:153
322519975,1cyclictest10855-21taskset21:32:373
322519974,1cyclictest13650irq/124-ahci[0022:19:553
322519973,2cyclictest240-21systemd-journal20:36:203
322519973,1cyclictest5722-21apt-get22:55:103
322519972,3cyclictest32232-21cyclictest22:35:083
322519971,2cyclictest0-21swapper/321:10:123
322519971,1cyclictest17180-21/usr/sbin/munin23:55:113
322519970,4cyclictest920-21runrttasks22:03:383
322519970,4cyclictest0-21swapper/323:26:213
322519970,4cyclictest0-21swapper/321:40:043
322519970,3cyclictest0-21swapper/322:20:123
322519970,3cyclictest0-21swapper/300:08:473
322519970,2cyclictest240-21systemd-journal00:35:393
322519970,1cyclictest20290-21latency_hist23:15:003
322449977,0cyclictest28-21ksoftirqd/223:40:012
322449976,1cyclictest61650irq/122-eno121:10:172
322449976,1cyclictest61650irq/122-eno100:21:422
322449976,1cyclictest28-21ksoftirqd/221:40:002
322449976,1cyclictest28-21ksoftirqd/221:05:002
322449975,1cyclictest61650irq/122-eno121:55:122
322449975,1cyclictest61650irq/122-eno121:55:122
322449975,1cyclictest61650irq/122-eno121:30:152
322449975,1cyclictest61650irq/122-eno121:25:132
322449975,1cyclictest28-21ksoftirqd/220:20:002
322449975,1cyclictest14647-21perf19:40:002
322449974,3cyclictest61650irq/122-eno121:23:232
322449970,7cyclictest0-21swapper/223:38:442
322449970,4cyclictest21700-21munin-run19:55:002
322419973,4cyclictest0-21swapper/120:25:191
322419972,2cyclictest0-21swapper/123:21:261
322419970,5cyclictest203-21jbd2/sda2-820:41:241
322389976,1cyclictest3355-21ssh00:21:170
322389975,1cyclictest6212-21ssh22:55:120
322389975,1cyclictest31738-21ssh21:18:110
322389974,2cyclictest1140-21ntp_kernel_err19:10:180
322389974,2cyclictest10185-21ntpq22:15:160
322389973,1cyclictest240-21systemd-journal19:25:000
322389971,5cyclictest25352-21ssh21:10:120
322389970,6cyclictest8698-21irqstats19:25:150
322389970,6cyclictest30025-21apt-get00:15:120
322389970,6cyclictest28588-21ssh00:11:360
322389970,6cyclictest27868-21memory20:05:160
322389970,6cyclictest25907-21awk23:20:200
322389970,6cyclictest23704-21diskstats21:50:150
322389970,6cyclictest22524-21grep00:00:220
322389970,1cyclictest8830-21ssh23:42:370
322389970,1cyclictest25721-21ssh00:08:530
322389970,1cyclictest25082-21diskmemload23:46:510
322389970,1cyclictest17281-21ssh21:40:200
322389970,1cyclictest1620-21ssh22:05:020
322389970,1cyclictest10010-21ssh21:30:280
322389970,1cyclictest0-21swapper/023:50:150
322389970,1cyclictest0-21swapper/021:55:240
322389970,1cyclictest0-21swapper/021:55:240
322389970,1cyclictest0-21swapper/021:36:100
14621270,0sleep10-21swapper/122:20:531
322519965,1cyclictest8306-21ssh23:41:033
322519965,1cyclictest7484-21ssh00:27:473
322519965,1cyclictest31891-21ssh00:15:373
322519965,1cyclictest28755-21ssh21:55:493
322519965,1cyclictest28755-21ssh21:55:493
322519965,1cyclictest2717-21ssh21:22:013
322519965,1cyclictest22791-21ssh00:00:523
322519965,1cyclictest22209-21ssh22:31:473
322519965,1cyclictest20725-21ntpq21:45:183
322519965,1cyclictest1898-21ssh23:33:413
322519965,1cyclictest10658-21ssh00:31:253
322519964,1cyclictest35-21ksoftirqd/322:05:203
322519964,1cyclictest32699-21ssh22:45:283
322519964,1cyclictest28447-21ssh00:11:093
322519964,1cyclictest18120-21cat19:45:153
322519964,1cyclictest16760-21cat20:50:163
322519963,1cyclictest13650irq/124-ahci[0019:44:553
322519962,3cyclictest0-21swapper/322:40:123
322519962,1cyclictest25082-21diskmemload00:20:153
322519960,4cyclictest240-21systemd-journal20:15:003
322519960,4cyclictest0-21swapper/322:14:373
322519960,3cyclictest0-21swapper/323:50:153
322519960,3cyclictest0-21swapper/323:16:013
322519960,2cyclictest0-21swapper/323:02:133
322519960,2cyclictest0-21swapper/319:50:133
322519960,1cyclictest0-21swapper/323:45:513
322519960,1cyclictest0-21swapper/322:50:133
322519960,1cyclictest0-21swapper/319:10:153
322519960,0cyclictest25082-21diskmemload21:51:343
322519960,0cyclictest0-21swapper/321:28:463
322449966,0cyclictest61650irq/122-eno123:55:382
322449966,0cyclictest61650irq/122-eno123:50:142
322449966,0cyclictest61650irq/122-eno123:45:022
322449966,0cyclictest61650irq/122-eno123:30:072
322449966,0cyclictest61650irq/122-eno122:35:212
322449966,0cyclictest61650irq/122-eno122:30:182
322449966,0cyclictest61650irq/122-eno122:20:532
322449966,0cyclictest61650irq/122-eno122:10:022
322449966,0cyclictest61650irq/122-eno122:00:202
322449966,0cyclictest61650irq/122-eno121:52:092
322449966,0cyclictest61650irq/122-eno121:45:102
322449966,0cyclictest61650irq/122-eno121:08:312
322449966,0cyclictest61650irq/122-eno120:50:422
322449966,0cyclictest61650irq/122-eno120:40:122
322449966,0cyclictest61650irq/122-eno120:22:482
322449966,0cyclictest61650irq/122-eno120:07:112
322449966,0cyclictest61650irq/122-eno120:04:082
322449966,0cyclictest61650irq/122-eno119:14:382
322449966,0cyclictest61650irq/122-eno100:35:022
322449966,0cyclictest61650irq/122-eno100:15:542
322449966,0cyclictest61650irq/122-eno100:10:012
322449966,0cyclictest61650irq/122-eno100:07:052
322449965,1cyclictest4082-21ssh22:50:582
322449965,1cyclictest22669-21ssh00:00:292
322449965,0cyclictest61650irq/122-eno121:40:172
322449964,1cyclictest61650irq/122-eno123:25:152
322449964,1cyclictest61650irq/122-eno123:15:122
322449964,1cyclictest61650irq/122-eno123:05:052
322449964,1cyclictest28-21ksoftirqd/220:30:112
322449960,5cyclictest0-21swapper/219:20:162
322449960,4cyclictest0-21swapper/200:30:132
322449960,1cyclictest0-21swapper/200:25:122
322449960,0cyclictest0-21swapper/222:42:032
322419962,3cyclictest0-21swapper/121:42:361
322419960,6cyclictest0-21swapper/123:10:531
322419960,6cyclictest0-21swapper/122:15:321
322419960,6cyclictest0-21swapper/122:08:591
322419960,6cyclictest0-21swapper/121:07:461
322419960,4cyclictest0-21swapper/122:11:461
322419960,4cyclictest0-21swapper/100:32:441
322419960,4cyclictest0-21swapper/100:17:381
322419960,3cyclictest0-21swapper/123:55:091
322419960,3cyclictest0-21swapper/123:33:111
322419960,3cyclictest0-21swapper/122:02:511
322419960,3cyclictest0-21swapper/121:11:231
322419960,2cyclictest0-21swapper/121:20:121
322419960,0cyclictest0-21swapper/121:39:501
322389965,1cyclictest9-21ksoftirqd/020:35:140
322389965,1cyclictest9-21ksoftirqd/020:00:000
322389965,1cyclictest27721-21ssh23:25:010
322389964,1cyclictest5209-21ssh22:10:000
322389964,1cyclictest26112-21sed20:00:200
322389964,1cyclictest2290-21ssh21:20:520
322389963,1cyclictest240-21systemd-journal20:28:200
322389960,6cyclictest0-21swapper/023:00:430
322389960,6cyclictest0-21swapper/019:30:210
322389960,6cyclictest0-21swapper/000:30:170
322389960,0cyclictest0-21swapper/021:08:270
322389960,0cyclictest0-21swapper/019:52:530
322389960,0cyclictest0-21swapper/019:15:140
10919260,1sleep20-21swapper/222:15:462
322519955,0cyclictest0-21swapper/320:30:003
322519953,1cyclictest9877-21seq19:29:433
322519953,1cyclictest5959-21cat19:20:153
322519953,1cyclictest3564-21irqstats23:35:173
322519953,1cyclictest23729-21cut21:05:163
322519951,3cyclictest0-21swapper/320:40:123
322519951,2cyclictest11429-21/usr/sbin/munin19:30:193
322519951,1cyclictest0-21swapper/320:32:353
322519950,1cyclictest0-21swapper/320:00:013
322519950,1cyclictest0-21swapper/319:40:003
322449955,0cyclictest61650irq/122-eno120:56:502
322449955,0cyclictest61650irq/122-eno119:40:122
322449955,0cyclictest61650irq/122-eno119:25:122
322449954,1cyclictest61650irq/122-eno119:30:132
322449953,1cyclictest6062-21chrt20:28:162
322449953,1cyclictest22509-21cut19:55:142
322449952,2cyclictest9084-21tr20:35:132
322449950,4cyclictest0-21swapper/220:10:012
322449950,2cyclictest0-21swapper/219:45:112
322419955,0cyclictest0-21swapper/123:51:171
322419955,0cyclictest0-21swapper/123:03:521
322419955,0cyclictest0-21swapper/122:47:301
322419955,0cyclictest0-21swapper/120:01:311
322419955,0cyclictest0-21swapper/100:12:251
322419955,0cyclictest0-21swapper/100:03:321
322419951,4cyclictest0-21swapper/122:26:061
322419951,4cyclictest0-21swapper/119:49:221
322419951,2cyclictest0-21swapper/123:43:551
322419951,1cyclictest0-21swapper/123:46:551
322419950,5cyclictest0-21swapper/120:11:461
322419950,4cyclictest0-21swapper/122:56:201
322419950,4cyclictest0-21swapper/120:30:151
322419950,4cyclictest0-21swapper/120:20:001
322419950,4cyclictest0-21swapper/100:05:231
322419950,3cyclictest0-21swapper/122:50:141
322419950,3cyclictest0-21swapper/121:59:351
322419950,3cyclictest0-21swapper/121:59:351
322419950,3cyclictest0-21swapper/121:50:131
322419950,3cyclictest0-21swapper/121:28:431
322419950,2cyclictest0-21swapper/123:25:111
322419950,2cyclictest0-21swapper/122:40:171
322419950,2cyclictest0-21swapper/122:35:131
322419950,0cyclictest0-21swapper/123:18:491
322389954,1cyclictest18235-21/usr/sbin/munin20:55:180
322389953,1cyclictest2581-21idleruntime20:20:160
322389950,4cyclictest15883-21/usr/sbin/munin20:50:180
322389950,0cyclictest0-21swapper/019:45:150
322519942,1cyclictest22518-21fschecks_count19:55:143
322519942,1cyclictest18500-21cpuspeed_turbos20:55:133
322519940,2cyclictest240-21systemd-journal21:00:053
322519940,1cyclictest28408-21timerandwakeup20:05:213
322449944,0cyclictest61650irq/122-eno119:15:292
322419944,0cyclictest0-21swapper/120:46:291
322419944,0cyclictest0-21swapper/119:55:581
322419943,1cyclictest87922sleep120:35:081
322419943,1cyclictest0-21swapper/100:26:091
322419942,1cyclictest9633-21chrt19:26:311
322419940,4cyclictest0-21swapper/119:53:231
322419940,3cyclictest0-21swapper/123:35:031
322419940,3cyclictest0-21swapper/120:55:141
322419940,3cyclictest0-21swapper/120:05:131
322419940,3cyclictest0-21swapper/100:20:111
322419940,2cyclictest0-21swapper/123:06:051
322419940,2cyclictest0-21swapper/121:30:151
322419940,2cyclictest0-21swapper/120:20:121
322419940,2cyclictest0-21swapper/119:35:141
322419940,2cyclictest0-21swapper/119:20:131
322419940,1cyclictest0-21swapper/121:45:191
322419940,1cyclictest0-21swapper/119:33:111
322419940,1cyclictest0-21swapper/119:15:151
322419940,0cyclictest0-21swapper/119:40:191
322419930,3cyclictest0-21swapper/119:10:151
322419930,0cyclictest0-21swapper/120:50:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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