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2025-12-22 - 20:39
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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 792 highest latencies:
System rackeslot8.osadl.org (updated Mon Dec 22, 2025 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34019692430,3sleep2421rcuc/208:30:182
3294203992825,1cyclictest0-21swapper/308:25:003
3294203992522,1cyclictest0-21swapper/309:00:013
3294203992118,1cyclictest0-21swapper/310:29:593
329420399211,17cyclictest3341440-21turbostat07:44:593
329420399201,14cyclictest3354546-21chrt07:55:003
3294203991917,1cyclictest0-21swapper/311:15:013
3294203991916,1cyclictest0-21swapper/310:15:003
3294203991916,1cyclictest0-21swapper/309:15:013
3294203991916,1cyclictest0-21swapper/308:55:013
3294203991916,1cyclictest0-21swapper/308:29:593
3294203991915,1cyclictest0-21swapper/310:00:003
329420399191,13cyclictest3412348-21chrt08:40:013
329420399191,13cyclictest3412348-21chrt08:40:013
329420399190,13cyclictest3522209-21taskset10:05:003
3294203991816,0cyclictest0-21swapper/311:00:153
3294203991815,1cyclictest0-21swapper/312:25:243
3294203991815,1cyclictest0-21swapper/310:35:003
3294203991815,1cyclictest0-21swapper/310:15:153
3294203991815,1cyclictest0-21swapper/308:35:013
3294203991815,1cyclictest0-21swapper/308:00:173
3294203991815,1cyclictest0-21swapper/307:25:243
329420399181,13cyclictest3485473-21taskset09:35:153
329420399181,13cyclictest3379328-21taskset08:10:233
3294203991715,1cyclictest0-21swapper/312:00:003
3294203991714,1cyclictest0-21swapper/312:39:593
3294203991714,1cyclictest0-21swapper/311:55:013
3294203991714,1cyclictest0-21swapper/311:00:013
3294203991714,1cyclictest0-21swapper/310:40:143
3294203991714,1cyclictest0-21swapper/309:45:013
3294203991714,1cyclictest0-21swapper/308:15:223
3294203991714,1cyclictest0-21swapper/307:20:013
329420399171,12cyclictest3463854-21taskset09:19:563
329420399171,12cyclictest3369694-21taskset08:05:183
329420399170,13cyclictest3644857-21taskset11:40:143
3294203991614,1cyclictest0-21swapper/310:35:173
3294203991613,1cyclictest0-21swapper/312:30:203
3294203991613,1cyclictest0-21swapper/312:15:243
3294203991613,1cyclictest0-21swapper/311:25:233
3294203991613,1cyclictest0-21swapper/311:20:123
3294203991613,1cyclictest0-21swapper/311:05:193
3294203991613,1cyclictest0-21swapper/309:20:183
3294203991612,1cyclictest0-21swapper/308:40:153
329420399161,12cyclictest3541582-21chrt10:20:153
329420399161,12cyclictest3502904-21taskset09:50:133
329420399161,12cyclictest3315512-21chrt07:23:553
329420399161,11cyclictest3470596-21taskset09:25:133
3294203991610,4cyclictest3418636-21turbostat08:49:553
329420399160,12cyclictest3678083-21taskset12:10:153
329420399160,12cyclictest3328401-21taskset07:34:573
3294203991513,1cyclictest0-21swapper/307:55:183
3294203991512,1cyclictest0-21swapper/307:45:243
329420399151,12cyclictest3528424-21taskset10:09:333
329420399151,11cyclictest3690709-21taskset12:20:053
329420399151,11cyclictest3677273-21chrt12:08:433
329420399151,11cyclictest3676663-21taskset12:04:023
329420399151,11cyclictest3618423-21taskset11:16:123
329420399151,11cyclictest3501608-21taskset09:45:213
329420399151,11cyclictest3334492-21taskset07:35:253
329420399150,12cyclictest3482789-21taskset09:30:263
329420399150,12cyclictest3300201-21taskset07:10:283
34051642141,10sleep03405381-21/usr/sbin/munin08:30:250
329420399141,11cyclictest3644119-21taskset11:36:293
329420399141,11cyclictest3637706-21chrt11:31:283
329420399141,11cyclictest3586305-21taskset10:51:573
329420399141,11cyclictest3586305-21taskset10:51:573
3294203991411,1cyclictest0-21swapper/310:45:193
329420399140,11cyclictest3651086-21taskset11:45:113
329420399140,11cyclictest3450653-21chrt09:05:283
329420399140,11cyclictest3444240-21taskset09:00:413
34281142130,3sleep03430207-21grep08:50:210
33104102130,6sleep23311290-21kthreadcore07:20:182
307598130,8rtkit-daemon3414389-21grep08:40:181
35149012120,8sleep03515107-21grep09:55:240
307598120,8rtkit-daemon714-21snmpd12:06:111
307598120,7rtkit-daemon3366063-21sort08:00:191
37104112110,7sleep03711164-21sed12:35:180
35923712111,7sleep23592638-21head10:55:252
34138892110,8sleep03415769-21cut08:40:190
32879442111,5sleep30-21swapper/307:05:113
307598110,6rtkit-daemon3256-21sendmail-mta11:23:151
307598110,6rtkit-daemon3256-21sendmail-mta11:00:191
36022572100,7sleep23604329-21cut11:05:182
34843662100,7sleep23485472-21cut09:35:152
34587622100,7sleep03459963-21grep09:15:170
34250702101,5sleep01-21systemd08:50:010
33752572100,7sleep13376382-21cut08:10:181
307598100,6rtkit-daemon3561572-21irqcore10:35:161
307598100,5rtkit-daemon3323662-21irqstats07:30:181
307598100,5rtkit-daemon217-21plymouthd10:52:551
307598100,5rtkit-daemon217-21plymouthd10:52:541
307598100,4rtkit-daemon3451299-21apt-get09:10:121
307598100,4rtkit-daemon217-21plymouthd11:30:581
307598100,3rtkit-daemon719-21lldpd09:53:031
307598100,3rtkit-daemon714-21snmpd07:36:141
307598100,3rtkit-daemon1-21systemd09:43:121
307598100,2rtkit-daemon217-21plymouthd10:42:341
307598100,1rtkit-daemon0-21swapper/109:18:301
3621809290,6sleep23623906-21kthreadcore11:20:182
3612577291,4sleep23612609-21apt-get11:15:132
3536520295,1sleep10-21swapper/110:15:161
3528715291,4sleep03528748-21apt-get10:10:110
3522032290,6sleep23522206-21latency_hist10:05:002
3380045291,5sleep23380060-21cron08:15:002
3361225291,5sleep03361379-21/usr/sbin/munin08:00:150
3354588291,4sleep23354620-21apt-get07:55:122
30759890,5rtkit-daemon746-21gmain07:55:471
30759890,5rtkit-daemon714-21snmpd11:09:221
30759890,5rtkit-daemon714-21snmpd07:47:051
30759890,5rtkit-daemon3300753-21munin-node08:05:461
30759890,4rtkit-daemon714-21snmpd07:16:091
30759890,4rtkit-daemon433-21rpcbind09:09:111
30759890,4rtkit-daemon3666401-21tr11:55:181
30759890,4rtkit-daemon3611897-21unixbench_singl11:10:251
30759890,4rtkit-daemon3294394-21apt-get07:10:141
30759890,4rtkit-daemon217-21plymouthd10:20:171
30759890,1rtkit-daemon0-21swapper/112:10:311
30759890,1rtkit-daemon0-21swapper/110:59:321
30759890,1rtkit-daemon0-21swapper/110:03:061
30759890,1rtkit-daemon0-21swapper/109:35:441
30759890,1rtkit-daemon0-21swapper/109:29:231
30759890,1rtkit-daemon0-21swapper/107:21:031
3698098280,5sleep13699002-21kthreadcore12:25:171
3676409280,1sleep00-21swapper/012:00:480
3637059281,4sleep23637136-21ntp_states11:30:202
3626800280,6sleep03628148-21kthreadcore11:25:170
3605777280,6sleep03489299-21kworker/0:1+kacpid11:08:300
3548408281,4sleep13549348-21irqstats10:25:191
3514732280,1sleep20-21swapper/209:55:232
3509399281,4sleep13509432-21apt-get09:55:141
3503106280,2sleep0171rcu_preempt09:50:160
3483157282,3sleep0217-21plymouthd09:35:010
3303011281,4sleep03303033-21apt-get07:15:150
3293363281,4sleep23293582-21sed07:05:232
30759880,4rtkit-daemon716-21ntpd12:31:211
30759880,4rtkit-daemon716-21ntpd11:37:351
30759880,4rtkit-daemon493-21gmain11:52:221
30759880,4rtkit-daemon475-21wpa_supplicant08:45:301
30759880,4rtkit-daemon3300753-21munin-node08:24:481
30759880,4rtkit-daemon217-21plymouthd12:16:101
30759880,4rtkit-daemon1-21systemd11:27:201
30759880,4rtkit-daemon1-21systemd07:26:131
30759880,4rtkit-daemon0-21swapper/108:30:351
30759880,3rtkit-daemon3300753-21munin-node10:11:501
30759880,3rtkit-daemon3287977-21apt-get07:05:121
30759880,3rtkit-daemon217-21plymouthd09:00:041
30759880,3rtkit-daemon1-21systemd10:08:181
30759880,1rtkit-daemon0-21swapper/112:36:481
30759880,1rtkit-daemon0-21swapper/112:02:241
30759880,1rtkit-daemon0-21swapper/111:44:371
30759880,1rtkit-daemon0-21swapper/109:21:551
30759880,1rtkit-daemon0-21swapper/108:55:081
30759880,1rtkit-daemon0-21swapper/108:51:141
30759880,1rtkit-daemon0-21swapper/108:28:061
30759880,1rtkit-daemon0-21swapper/108:16:551
30759880,1rtkit-daemon0-21swapper/107:51:461
30759880,1rtkit-daemon0-21swapper/107:40:441
3710179270,5sleep23710204-21fschecks_count12:35:162
3670597270,4sleep20-21swapper/212:00:132
3651430270,1sleep10-21swapper/111:45:181
3651283270,4sleep03651426-21grep11:45:170
3541055270,1sleep20-21swapper/210:17:192
3496298270,3sleep23496321-21apt-get09:45:132
3495878270,1sleep00-21swapper/009:43:060
3446271270,5sleep23448105-21kthreadcore09:05:172
3438435271,3sleep23438468-21apt-get09:00:122
3386938273,2sleep03386989-21fschecks_count08:20:150
3386195271,4sleep0714-21snmpd08:16:260
3360730270,1sleep00-21swapper/007:59:420
3334120271,3sleep23334231-21awk07:35:212
3293765270,1sleep00-21swapper/007:06:220
30759870,3rtkit-daemon716-21ntpd12:20:131
30759870,3rtkit-daemon3554849-21diskstats10:30:141
30759870,3rtkit-daemon3411340-21ntp_states08:35:241
30759870,3rtkit-daemon3411340-21ntp_states08:35:241
30759870,3rtkit-daemon1-21systemd11:15:031
30759870,3rtkit-daemon1-21systemd09:30:041
30759870,2rtkit-daemon217-21plymouthd09:48:021
30759870,2rtkit-daemon0-21swapper/110:45:181
3708708260,1sleep20-21swapper/212:30:232
3703185260,1sleep00-21swapper/012:28:410
3696863260,1sleep00-21swapper/012:24:440
3684046260,1sleep00-21swapper/012:15:060
3677627260,1sleep20-21swapper/212:10:112
3670305260,1sleep00-21swapper/011:59:510
3658594261,2sleep00-21swapper/011:50:180
3650494260,1sleep00-21swapper/011:40:440
3643502260,3sleep03643562-21sh11:35:230
3619000260,2sleep00-21swapper/011:20:120
3618403260,1sleep00-21swapper/011:15:590
3612106260,1sleep00-21swapper/011:12:190
3611551260,3sleep23611644-21grep11:10:242
3599395260,1sleep00-21swapper/011:03:290
3598708260,3sleep23598825-21python311:00:222
3587043260,3sleep03587158-21perl10:55:160
3586583260,1sleep00-21swapper/010:54:510
3586583260,1sleep00-21swapper/010:54:500
3580071260,1sleep20-21swapper/210:49:412
3579177260,3sleep03579254-21ntp_states10:45:220
3573477260,1sleep20-21swapper/210:42:312
3573416263,1sleep014-21ksoftirqd/010:41:450
3560706260,1sleep00-21swapper/010:33:320
3554136260,3sleep23554153-21apt-get10:30:012
3546766260,3sleep23546843-21ntp_states10:20:232
3523705261,3sleep00-21swapper/010:05:170
3487522261,3sleep03488552-21cat09:35:170
3470960262,2sleep23471119-21irqcore09:25:172
3470025260,4sleep00-21swapper/009:21:250
3438426260,1sleep00-21swapper/009:00:060
3434724261,3sleep23436822-21kthreadcore08:55:192
3425791260,4sleep23425330-21/usr/sbin/munin08:50:192
3425025260,1sleep20-21swapper/208:49:262
3384372260,3sleep23385441-21memory08:15:192
3373581260,1sleep00-21swapper/008:09:450
3373250260,1sleep20-21swapper/208:05:302
3354051260,1sleep00-21swapper/007:51:300
3354033260,1sleep20-21swapper/207:51:162
3347825260,1sleep00-21swapper/007:49:170
3347618260,1sleep20-21swapper/207:46:392
3340514260,3sleep23340573-21ntp_states07:40:222
3334710260,1sleep00-21swapper/007:36:550
3328352260,1sleep20-21swapper/207:34:202
3683658250,3sleep00-21swapper/012:13:140
3669759250,3sleep20-21swapper/211:55:252
3651565250,2sleep23652507-21kernelversion11:45:192
3631752250,3sleep00-21swapper/011:30:010
3566956250,3sleep20-21swapper/210:35:582
3561483251,2sleep00-21swapper/010:35:160
3553911250,3sleep00-21swapper/010:27:060
3547396250,3sleep00-21swapper/010:21:170
3535118251,1sleep00-21swapper/010:15:120
3476505250,1sleep00-21swapper/009:27:070
3464445250,3sleep20-21swapper/209:20:162
3463163250,2sleep20-21swapper/209:15:232
3451266250,2sleep00-21swapper/009:10:120
3450766250,3sleep00-21swapper/009:06:560
3432016250,2sleep00-21swapper/008:55:140
3412175251,2sleep23412187-21latency_hist08:40:012
3412175251,2sleep23412187-21latency_hist08:40:012
3391942250,3sleep23392045-21ntpq08:20:212
3361043250,2sleep20-21swapper/208:00:132
3340686250,2sleep03340794-21/usr/sbin/munin07:40:240
3327489250,3sleep00-21swapper/007:30:220
3317889250,3sleep23319929-21kthreadcore07:25:192
3309023250,3sleep20-21swapper/207:18:022
3300228250,3sleep0217-21plymouthd07:10:490
3294346250,3sleep20-21swapper/207:10:042
3706441240,2sleep03706674-21kthreadcore12:30:210
3699005240,2sleep20-21swapper/212:25:172
3690095240,2sleep20-21swapper/212:18:572
3677015240,2sleep0217-21plymouthd12:05:230
3657474240,2sleep2217-21plymouthd11:50:032
3650818241,1sleep20-21swapper/211:44:552
3625681240,2sleep20-21swapper/211:25:152
3581307240,2sleep23581787-21kthreadcore10:50:172
3581307240,2sleep23581787-21kthreadcore10:50:172
3531142240,2sleep20-21swapper/210:10:172
3516820240,2sleep03517828-21kthreadcore10:00:170
3504413240,2sleep20-21swapper/209:50:182
3495953240,2sleep2217-21plymouthd09:44:032
3451445240,2sleep23451490-21tune2fs09:10:142
3398430240,2sleep03398501-21ntp_states08:25:200
3373860240,1sleep00-21swapper/008:10:130
3321978240,3sleep00-21swapper/007:29:420
3309444240,3sleep00-21swapper/007:20:040
3690334230,1sleep20-21swapper/212:20:012
3676985230,1sleep20-21swapper/212:05:022
3638231230,1sleep20-21swapper/211:35:052
3547935230,1sleep20-21swapper/210:25:042
3522281230,1sleep20-21swapper/210:05:042
3496274230,1sleep00-21swapper/009:45:030
3476777230,1sleep20-21swapper/209:30:012
3412443230,1sleep20-21swapper/208:40:052
3406004230,1sleep00-21swapper/008:35:100
3406004230,1sleep00-21swapper/008:35:090
3393178230,1sleep20-21swapper/208:25:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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