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2026-04-23 - 11:25
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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 Thu Apr 23, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
207095121110,2sleep30-21swapper/321:15:513
23437522720,1sleep12343751-21ssh00:18:351
22996632490,2sleep12299564-21ssh23:50:411
1904978992416,3cyclictest2243499-21kthreadcore23:10:461
1904978992320,2cyclictest1983054-21runrttasks20:10:011
1904978992219,2cyclictest2095766-21ls21:35:011
383433398210,3rtkit-daemon3851703-21mta-sts-daemon22:05:321
1904978992113,3cyclictest2231482-21latency_hist23:05:021
1904978992112,4cyclictest0-21swapper/100:35:011
1904974992118,2cyclictest1932816-21apt-key19:30:000
1904974992110,10cyclictest0-21swapper/023:15:420
1904980992018,1cyclictest0-21swapper/223:00:012
1904980992018,1cyclictest0-21swapper/221:10:012
1904980992017,1cyclictest0-21swapper/223:45:432
1904980992017,1cyclictest0-21swapper/221:50:422
1904978992017,2cyclictest2123897-21mailstats21:50:501
1904978992017,2cyclictest1932928-21/usr/sbin/munin19:30:011
1904978992014,4cyclictest1-21systemd19:45:001
1904974992012,7cyclictest0-21swapper/000:00:030
1904974992012,4cyclictest2365145-21switchtime00:30:520
2649091190,2phc2sys0-21swapper/300:05:203
2649091190,2phc2sys0-21swapper/300:00:023
1904980991916,1cyclictest0-21swapper/222:35:512
1904980991916,1cyclictest0-21swapper/221:25:002
190497899197,4cyclictest3851705-21mta-sts-daemon23:33:151
1904978991915,3cyclictest3880722-21gmain21:05:011
1904978991913,4cyclictest1-21systemd20:20:011
190497499199,6cyclictest2201671-21/usr/sbin/munin22:45:490
190497499198,6cyclictest0-21swapper/022:20:390
1904974991913,5cyclictest3851703-21mta-sts-daemon21:39:010
1904974991913,5cyclictest2273699-21kthreadcore23:30:480
1904974991912,6cyclictest0-21swapper/021:10:010
1904974991911,4cyclictest2235302-21kthreadcore23:05:470
1904974991910,4cyclictest2194180-21/usr/sbin/munin22:40:440
1904974991910,3cyclictest3851698-21mta-sts-daemon19:32:180
1904980991815,1cyclictest0-21swapper/223:15:002
1904980991815,1cyclictest0-21swapper/220:15:002
1904980991814,2cyclictest0-21swapper/221:40:002
1904978991815,2cyclictest3851875-21systemd-journal22:35:001
1904978991815,2cyclictest2268883-21sh23:30:011
1904978991815,2cyclictest2193650-21latency_hist22:40:011
1904978991815,2cyclictest1290-21dbus-daemon21:00:021
1904978991815,2cyclictest0-21swapper/119:10:011
1904978991813,4cyclictest0-21swapper/100:10:461
190497499189,1cyclictest383433398rtkit-daemon20:04:570
190497499188,6cyclictest0-21swapper/021:50:010
1904974991815,2cyclictest0-21swapper/022:00:000
1904974991810,4cyclictest3851702-21mta-sts-daemon21:10:280
1904974991810,4cyclictest1996-21runrttasks00:38:580
2649091170,2phc2sys0-21swapper/322:34:073
2649091170,2phc2sys0-21swapper/320:20:493
23523162170,2sleep02352296-21ssh00:25:390
19457482170,2sleep20-21swapper/219:40:402
1904980991715,1cyclictest0-21swapper/223:30:472
1904980991715,1cyclictest0-21swapper/220:00:012
1904980991715,1cyclictest0-21swapper/200:40:022
1904980991714,1cyclictest0-21swapper/219:55:002
190497899179,3cyclictest0-21swapper/121:18:431
1904978991714,2cyclictest2020355-21latency_hist20:40:011
1904978991714,2cyclictest1971299-21fschecks_count20:00:441
1904978991714,2cyclictest0-21swapper/122:05:011
1904978991710,3cyclictest2052049-21tail21:05:401
190497499179,7cyclictest2222002-21sendmail_mailtr22:55:510
190497499179,4cyclictest0-21swapper/023:15:000
190497499178,7cyclictest0-21swapper/022:25:390
190497499176,6cyclictest0-21swapper/022:15:400
1904974991715,1cyclictest1970624-21cut20:00:020
1904974991714,2cyclictest2089562-21irqrtprio21:30:450
1904974991714,2cyclictest1992884-21kthreadcore20:15:460
1904974991713,2cyclictest0-21swapper/021:20:010
1904974991712,2cyclictest3851703-21mta-sts-daemon23:21:040
1904974991710,6cyclictest0-21swapper/022:35:010
1904974991710,4cyclictest2133724-21tail22:00:400
1904974991710,3cyclictest1904970-21cyclictest21:25:010
190497499170,16cyclictest0-21swapper/020:46:390
383433398160,4rtkit-daemon3840937-21lldpd20:10:390
383433398160,3rtkit-daemon2200639-21ssh22:43:221
2649091160,2phc2sys0-21swapper/323:00:163
2649091160,2phc2sys0-21swapper/322:05:253
2649091160,2phc2sys0-21swapper/300:15:463
1904980991614,1cyclictest0-21swapper/223:35:392
1904980991614,1cyclictest0-21swapper/222:15:532
1904980991614,1cyclictest0-21swapper/221:25:422
1904980991613,1cyclictest0-21swapper/223:25:012
1904980991613,1cyclictest0-21swapper/222:51:142
1904980991613,1cyclictest0-21swapper/222:25:192
1904980991613,1cyclictest0-21swapper/222:10:462
1904980991613,1cyclictest0-21swapper/220:45:492
1904980991613,1cyclictest0-21swapper/219:30:002
1904980991613,1cyclictest0-21swapper/219:10:032
1904980991612,2cyclictest0-21swapper/200:15:442
190498099160,9cyclictest0-21swapper/221:40:392
190497899169,2cyclictest383433398rtkit-daemon21:45:331
190497899168,3cyclictest0-21swapper/123:56:421
1904978991613,2cyclictest3841370-21avahi-daemon19:50:341
1904978991613,2cyclictest3824565-21in:imuxsock00:39:221
1904978991613,2cyclictest2126308-21aten2.4-expect21:55:391
1904978991613,2cyclictest1996-21runrttasks22:28:151
1904978991613,2cyclictest1426-21gdbus19:15:021
1904978991613,2cyclictest1-21systemd00:10:011
1904978991613,2cyclictest0-21swapper/123:20:001
1904978991613,2cyclictest0-21swapper/120:30:021
1904978991612,3cyclictest2283925-21kworker/u16:1+nfsiod23:43:261
1904978991610,5cyclictest3851702-21mta-sts-daemon21:36:051
190497499167,5cyclictest0-21swapper/000:20:430
190497499162,9cyclictest2284838-21expr23:40:420
1904974991614,1cyclictest3851702-21mta-sts-daemon21:40:060
1904974991614,1cyclictest0-21swapper/000:15:010
1904974991613,2cyclictest2299894-21grep23:50:420
1904974991613,2cyclictest2231449-21latency_hist23:05:010
1904974991613,2cyclictest2026213-21tail20:40:530
1904974991613,2cyclictest1290-21dbus-daemon19:15:010
1904974991611,4cyclictest2187631-21tr22:35:450
190497499160,4cyclictest2125626-21sh21:55:000
383433398150,7rtkit-daemon3851704-21mta-sts-daemon23:37:391
2649091150,2phc2sys0-21swapper/322:43:213
2649091150,2phc2sys0-21swapper/322:01:093
2649091150,2phc2sys0-21swapper/321:47:503
2649091150,2phc2sys0-21swapper/300:03:153
190498099154,8cyclictest22903262sleep223:42:012
1904980991513,1cyclictest0-21swapper/223:10:012
1904980991513,1cyclictest0-21swapper/221:35:002
1904980991513,1cyclictest0-21swapper/221:15:012
1904980991513,1cyclictest0-21swapper/220:30:002
1904980991513,1cyclictest0-21swapper/220:20:012
1904980991513,1cyclictest0-21swapper/200:35:012
1904980991513,1cyclictest0-21swapper/200:15:012
1904980991512,2cyclictest0-21swapper/222:30:492
1904980991512,1cyclictest0-21swapper/223:55:472
1904980991512,1cyclictest0-21swapper/223:51:082
1904980991512,1cyclictest0-21swapper/223:30:022
1904980991512,1cyclictest0-21swapper/222:08:422
1904980991512,1cyclictest0-21swapper/220:50:452
1904980991512,1cyclictest0-21swapper/220:40:432
1904980991512,1cyclictest0-21swapper/220:20:432
1904980991512,1cyclictest0-21swapper/220:00:532
1904980991511,2cyclictest0-21swapper/200:20:412
190497899159,5cyclictest3851702-21mta-sts-daemon00:26:171
190497899159,2cyclictest134050irq/121-eno122:15:391
190497899157,3cyclictest0-21swapper/122:45:521
1904978991512,2cyclictest2348146-21kthreadcore00:20:461
1904978991512,2cyclictest2039333-21munin-plugin-st20:55:021
1904978991512,2cyclictest0-21swapper/123:50:021
1904978991512,2cyclictest0-21swapper/121:25:511
1904978991512,2cyclictest0-21swapper/121:15:011
1904978991511,3cyclictest2236175-21kthreadcore23:05:471
1904978991510,2cyclictest3851704-21mta-sts-daemon23:24:031
1904978991510,2cyclictest134050irq/121-eno122:20:111
190497899150,3cyclictest0-21swapper/120:10:031
190497499159,1cyclictest3851705-21mta-sts-daemon20:35:400
190497499157,1cyclictest0-21swapper/000:05:410
190497499156,5cyclictest3851702-21mta-sts-daemon22:13:300
190497499156,5cyclictest0-21swapper/020:22:210
1904974991513,1cyclictest0-21swapper/019:10:010
1904974991512,2cyclictest3851703-21mta-sts-daemon00:18:560
1904974991512,2cyclictest2297288-21timerwakeupswit23:45:520
1904974991512,2cyclictest2263788-21kthreadcore23:25:450
1904974991512,2cyclictest2142241-21if_enp1s022:05:430
1904974991512,2cyclictest2080968-21sh21:25:390
190497499150,2cyclictest2045439-21cat21:00:010
2649091141,6phc2sys0-21swapper/300:25:393
2649091141,5phc2sys0-21swapper/323:48:423
2649091140,4phc2sys0-21swapper/321:56:173
2649091140,2phc2sys0-21swapper/323:22:013
2649091140,2phc2sys0-21swapper/322:55:333
2649091140,1phc2sys0-21swapper/319:34:493
190498099141,6cyclictest0-21swapper/221:50:012
190498099141,4cyclictest0-21swapper/219:40:012
1904980991412,1cyclictest0-21swapper/220:05:412
1904980991412,1cyclictest0-21swapper/200:00:492
1904980991411,2cyclictest0-21swapper/222:40:542
1904980991411,1cyclictest0-21swapper/222:20:462
1904980991411,1cyclictest0-21swapper/221:55:462
1904980991411,1cyclictest0-21swapper/219:35:012
1904980991411,1cyclictest0-21swapper/200:29:592
1904980991410,2cyclictest0-21swapper/219:20:452
190498099140,11cyclictest0-21swapper/222:45:382
190497899149,4cyclictest3851703-21mta-sts-daemon00:02:011
190497899145,4cyclictest0-21swapper/119:57:411
1904978991412,1cyclictest1953531-21kthreadcore19:45:451
1904978991411,2cyclictest3851702-21mta-sts-daemon22:51:081
1904978991411,2cyclictest2218633-21kthreadcore22:55:461
1904978991411,2cyclictest2150295-21cut22:10:451
1904978991411,2cyclictest2104270-21fschecks_count21:40:421
1904978991411,2cyclictest2001621-21latency_hist20:25:021
1904978991411,2cyclictest1934452-21kthreadcore19:30:461
1904978991411,2cyclictest1914915-21if_enp1s0.819:15:431
1904978991411,2cyclictest0-21swapper/121:25:011
1904978991410,3cyclictest3851705-21mta-sts-daemon20:40:441
1904978991410,3cyclictest2029868-21kthreadcore20:45:461
190497499148,2cyclictest2033301-21aten2.4-expect20:50:380
190497499146,6cyclictest1943366-21tr19:35:470
190497499145,5cyclictest0-21swapper/019:21:460
1904974991411,2cyclictest3851705-21mta-sts-daemon23:35:200
1904974991411,2cyclictest3827634-1atopacctd20:05:450
1904974991411,2cyclictest2321647-21systemd-run00:05:020
1904974991411,2cyclictest2210157-21irqcore22:50:440
1904974991411,2cyclictest2013154-21needreboot20:30:480
1904974991411,2cyclictest2007146-21mailstats20:25:500
1904974991411,2cyclictest1958288-21aten2.4-expect19:50:400
2649091132,5phc2sys0-21swapper/300:30:523
2649091130,3phc2sys0-21swapper/321:53:093
2649091130,3phc2sys0-21swapper/321:30:393
2649091130,2phc2sys0-21swapper/323:36:363
2649091130,2phc2sys0-21swapper/321:13:423
2649091130,2phc2sys0-21swapper/319:41:133
2649091130,2phc2sys0-21swapper/319:25:473
2649091130,1phc2sys0-21swapper/322:12:163
1904980991311,1cyclictest0-21swapper/223:00:532
1904980991311,1cyclictest0-21swapper/222:05:012
1904980991311,1cyclictest0-21swapper/221:15:492
1904980991311,1cyclictest0-21swapper/221:00:412
1904980991311,1cyclictest0-21swapper/220:35:012
1904980991311,1cyclictest0-21swapper/219:45:502
1904980991311,1cyclictest0-21swapper/219:10:452
1904980991310,1cyclictest0-21swapper/223:15:472
1904980991310,1cyclictest0-21swapper/220:35:452
1904980991310,1cyclictest0-21swapper/200:06:412
190497899139,3cyclictest1943585-21kthreadcore19:35:471
190497899139,3cyclictest1925162-21kthreadcore19:20:461
1904978991310,2cyclictest2008324-21aten_repower_fr20:30:401
1904974991310,2cyclictest2046368-21fschecks_time21:00:430
1904974991310,2cyclictest1954194-21kthreadcore19:45:450
1904974991310,2cyclictest1948581-21kthreadcore19:40:470
1904974991310,2cyclictest1914343-21cpuspeed_turbos19:15:400
2649091122,3phc2sys0-21swapper/323:05:383
2649091120,2phc2sys0-21swapper/323:50:533
2649091120,2phc2sys0-21swapper/322:28:033
2649091120,2phc2sys0-21swapper/321:20:093
2649091120,2phc2sys0-21swapper/319:35:413
2649091120,2phc2sys0-21swapper/319:13:133
2649091120,2phc2sys0-21swapper/300:37:063
2649091120,1phc2sys0-21swapper/322:52:163
2649091120,1phc2sys0-21swapper/320:47:253
190498099121,4cyclictest0-21swapper/220:55:392
1904980991210,1cyclictest0-21swapper/219:15:032
2649091112,2phc2sys0-21swapper/322:38:053
2649091111,1phc2sys0-21swapper/320:00:423
2649091110,2phc2sys0-21swapper/321:39:223
2649091110,1phc2sys0-21swapper/323:13:363
2649091110,1phc2sys0-21swapper/322:48:043
2649091110,1phc2sys0-21swapper/322:15:163
2649091110,1phc2sys0-21swapper/319:17:303
2649091101,4phc2sys0-21swapper/319:50:393
2649091101,2phc2sys0-21swapper/323:41:353
2649091101,2phc2sys0-21swapper/320:55:533
2649091101,2phc2sys0-21swapper/320:40:013
2649091100,6phc2sys2026495-21chrt20:43:453
2649091100,3phc2sys0-21swapper/321:42:543
2649091100,2phc2sys0-21swapper/323:28:363
2649091100,2phc2sys0-21swapper/322:20:383
2649091100,2phc2sys0-21swapper/321:05:483
2649091100,2phc2sys0-21swapper/320:16:113
2649091100,2phc2sys0-21swapper/320:05:473
2649091100,2phc2sys0-21swapper/300:22:503
2649091100,2phc2sys0-21swapper/300:10:293
2649091100,1phc2sys0-21swapper/320:51:473
264909191,2phc2sys0-21swapper/321:25:383
264909190,3phc2sys0-21swapper/323:30:403
264909190,2phc2sys0-21swapper/323:15:333
264909190,2phc2sys0-21swapper/320:30:513
264909190,2phc2sys0-21swapper/320:25:383
264909190,2phc2sys0-21swapper/320:10:433
264909190,2phc2sys0-21swapper/319:20:463
264909190,2phc2sys0-21swapper/319:05:443
1951917291,4sleep30-21swapper/319:45:383
264909180,1phc2sys0-21swapper/321:00:343
264909180,1phc2sys0-21swapper/319:55:093
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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