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2026-07-27 - 20:32
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rackbslot6.osadl.org (updated Mon Jul 27, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911070,4ptp4l401ktimersoftd/309:15:173
21918998659,18cyclictest121rcu_preempt09:15:342
106891710,1ptp4l401ktimersoftd/311:52:403
197422635,45sleep00-21swapper/009:10:470
25602620,5sleep02190699cyclictest12:40:540
106891620,8ptp4l401ktimersoftd/314:13:283
297662610,1sleep00-21swapper/014:14:320
143602600,3sleep02190699cyclictest12:19:580
183812590,2sleep0101ktimersoftd/011:50:550
106891590,1ptp4l401ktimersoftd/310:45:533
297942580,1sleep00-21swapper/010:35:560
106891570,1ptp4l401ktimersoftd/314:29:423
106891570,1ptp4l401ktimersoftd/312:02:233
87172560,2sleep30-21swapper/309:51:063
87172560,2sleep30-21swapper/309:51:063
160622550,2sleep20-21swapper/212:54:332
73212540,2sleep30-21swapper/312:11:183
106891510,1ptp4l401ktimersoftd/312:05:423
106891470,2ptp4l24624-21kworker/3:012:42:593
21906994538,4cyclictest9-21ksoftirqd/012:50:500
145291446,8phc2sys41-21ksoftirqd/311:29:503
106891430,1ptp4l401ktimersoftd/313:30:243
106891430,1ptp4l401ktimersoftd/313:30:243
2191899418,20cyclictest15279-21diskmemload13:15:022
106891410,1ptp4l401ktimersoftd/310:31:003
21906994033,4cyclictest9-21ksoftirqd/014:00:550
106891400,1ptp4l401ktimersoftd/309:35:483
106891390,2ptp4l24624-21kworker/3:013:53:293
106891390,1ptp4l401ktimersoftd/314:37:503
106891390,1ptp4l401ktimersoftd/311:46:243
2191899381,4cyclictest13581-21chrt13:57:042
2191899380,5cyclictest8429-21uniq11:40:522
2191899380,5cyclictest8429-21uniq11:40:522
21906993831,3cyclictest9-21ksoftirqd/014:20:540
106891380,1ptp4l401ktimersoftd/314:23:223
106891380,1ptp4l401ktimersoftd/313:37:583
106891380,1ptp4l401ktimersoftd/311:57:443
106891380,1ptp4l401ktimersoftd/311:21:093
21918993711,23cyclictest5110-21sed10:51:092
106891370,1ptp4l401ktimersoftd/314:18:523
106891370,1ptp4l401ktimersoftd/314:02:513
106891370,1ptp4l401ktimersoftd/313:33:563
106891370,1ptp4l401ktimersoftd/313:17:503
106891370,1ptp4l401ktimersoftd/312:17:583
106891370,0ptp4l401ktimersoftd/313:21:273
106891370,0ptp4l401ktimersoftd/313:21:273
2191899363,25cyclictest31060-21apt-get14:15:542
21918993619,14cyclictest33-21ksoftirqd/211:03:442
21918993618,15cyclictest10019-21threads14:26:092
21918993615,18cyclictest24245-21sh14:08:292
2191899361,29cyclictest0-21swapper/213:30:532
21918993612,21cyclictest18851-21cut13:30:402
21918993612,21cyclictest18851-21cut13:30:402
2191899360,4cyclictest4407-21phc2sys-jitter11:36:002
2191899360,4cyclictest13392-21ls11:10:522
21906993624,10cyclictest9-21ksoftirqd/013:25:390
21906993624,10cyclictest9-21ksoftirqd/013:25:390
106891360,1ptp4l401ktimersoftd/313:48:553
106891360,1ptp4l401ktimersoftd/313:10:143
106891360,1ptp4l401ktimersoftd/312:56:123
106891360,1ptp4l401ktimersoftd/312:54:043
106891360,1ptp4l401ktimersoftd/312:35:273
106891360,1ptp4l401ktimersoftd/311:17:273
106891360,1ptp4l401ktimersoftd/310:17:343
106891360,1ptp4l401ktimersoftd/309:33:453
106891360,0ptp4l401ktimersoftd/312:21:453
106891360,0ptp4l401ktimersoftd/311:39:243
106891360,0ptp4l401ktimersoftd/311:30:433
106891360,0ptp4l401ktimersoftd/310:20:513
106891360,0ptp4l401ktimersoftd/309:50:233
2191899353,27cyclictest0-21swapper/210:10:472
2191899352,30cyclictest27854-21cpuspeed_turbos12:00:512
2191899351,28cyclictest7221-21apt-get09:50:502
2191899351,28cyclictest7221-21apt-get09:50:502
21918993510,22cyclictest25008-21cat14:41:112
2191899350,4cyclictest958-21ssh12:38:542
2191899350,4cyclictest19479-21cat10:15:502
2191899350,4cyclictest10311-21ssh12:48:062
106891350,2ptp4l19372-21kworker/3:112:26:593
106891350,2ptp4l19372-21kworker/3:110:08:423
106891350,1ptp4l401ktimersoftd/314:34:213
106891350,1ptp4l401ktimersoftd/313:11:483
106891350,1ptp4l401ktimersoftd/313:04:363
106891350,0ptp4l401ktimersoftd/313:56:033
2191899348,23cyclictest26863-21sed11:25:582
2191899348,22cyclictest18000-21cpuspeed_turbos11:50:522
2191899342,24cyclictest2468-21apt-get09:40:482
21918993414,17cyclictest9541-21sh13:53:312
21918993411,20cyclictest5294-21/usr/sbin/munin12:10:512
21918993410,20cyclictest22543-21irqrtprio10:20:532
2191899340,4cyclictest28424-21snmp_o5powerctl13:06:062
2191899340,4cyclictest16561-21if_err_enp1s011:15:562
142042340,2sleep10-21swapper/112:51:231
106891340,1ptp4l401ktimersoftd/311:43:343
106891340,1ptp4l401ktimersoftd/311:43:343
21926993326,4cyclictest41-21ksoftirqd/312:35:583
2191899339,21cyclictest24657-21munin-node09:20:372
2191899332,5cyclictest15166-21apt-get12:20:502
2191899331,3cyclictest16856-21ssh14:34:002
21918993313,17cyclictest27816-21sh14:11:132
2191899330,5cyclictest3067-21ssh12:07:452
2191899330,5cyclictest11292-21gltestperf11:05:552
2191899330,4cyclictest6691-21ssh12:45:182
2191899330,4cyclictest6019-21/usr/sbin/munin10:56:032
2191899330,3cyclictest13872-21cut11:45:562
21906993325,4cyclictest9-21ksoftirqd/013:05:510
106891330,1ptp4l401ktimersoftd/311:08:563
2191899329,20cyclictest22675-21ssh11:55:412
2191899328,21cyclictest6032-21cat13:16:092
2191899328,21cyclictest29099-21cstates13:40:552
2191899321,4cyclictest17614-21snmp_o5powerctl14:01:102
21918993212,17cyclictest7769-21sh14:25:162
21918993212,17cyclictest31399-21expr10:40:502
21918993212,17cyclictest30612-21/usr/sbin/munin11:31:052
2191899320,4cyclictest21698-21timerandwakeup12:26:052
2191899320,4cyclictest12546-21ssh12:16:512
2191899320,3cyclictest17757-21if_ens312:55:582
21913993226,3cyclictest25-21ksoftirqd/112:05:381
21913993223,5cyclictest25-21ksoftirqd/112:40:521
21906993227,3cyclictest9-21ksoftirqd/013:15:530
210922320,2sleep00-21swapper/014:05:530
106891320,2ptp4l19372-21kworker/3:110:51:033
106891320,1ptp4l401ktimersoftd/311:11:093
106891320,11ptp4l401ktimersoftd/309:43:243
2191899312,8cyclictest25035-21apt-get12:30:532
2191899312,10cyclictest1406-21apt-get13:45:532
2191899311,3cyclictest21817-21ls11:20:562
2191899311,24cyclictest11953-21apt-get10:00:472
21918993111,17cyclictest11421-21sh13:21:432
21918993111,17cyclictest11421-21sh13:21:432
21918993110,18cyclictest14593-21df_inode10:05:502
2191899310,4cyclictest5114-21diskstats09:45:502
2191899310,4cyclictest28085-21sh13:39:592
2191899310,4cyclictest24170-21taskset09:17:212
2191899310,29cyclictest0-21swapper/209:26:032
106891310,1ptp4l401ktimersoftd/313:44:193
106891310,1ptp4l401ktimersoftd/309:23:123
2191899307,21cyclictest22232-21ls13:00:542
21918993014,13cyclictest33-21ksoftirqd/210:33:412
2191899301,3cyclictest20406-21sshd14:36:182
2191899300,4cyclictest1443-21snmp_o5powerctl09:36:012
2191899300,4cyclictest10066-21hddtemp_smartct09:55:502
21906993024,3cyclictest9-21ksoftirqd/014:35:420
21906993024,3cyclictest9-21ksoftirqd/011:30:560
106891300,0ptp4l401ktimersoftd/310:43:553
106891300,0ptp4l401ktimersoftd/310:30:163
81202290,4sleep12191399cyclictest14:25:421
2191899297,18cyclictest0-21swapper/210:45:572
2191899291,5cyclictest24375-21fschecks_count10:25:502
2191899291,3cyclictest30895-21munin-run10:40:362
2191899290,3cyclictest31515-21awk09:31:012
21906992923,4cyclictest9-21ksoftirqd/009:55:470
21906992923,3cyclictest9-21ksoftirqd/011:15:360
21906992923,3cyclictest9-21ksoftirqd/010:41:050
21906992923,3cyclictest9-21ksoftirqd/009:30:520
21906992922,3cyclictest9-21ksoftirqd/011:55:540
106891290,0ptp4l401ktimersoftd/310:59:193
21913992821,5cyclictest25-21ksoftirqd/114:35:541
21906992823,3cyclictest9-21ksoftirqd/013:36:000
21906992823,3cyclictest9-21ksoftirqd/013:35:400
21906992822,3cyclictest9-21ksoftirqd/014:40:410
21906992822,3cyclictest9-21ksoftirqd/011:15:410
21906992822,3cyclictest9-21ksoftirqd/010:25:360
21906992822,3cyclictest9-21ksoftirqd/010:15:350
21906992822,3cyclictest9-21ksoftirqd/010:10:350
21906992819,6cyclictest9-21ksoftirqd/011:05:510
21906992817,9cyclictest9-21ksoftirqd/014:00:410
207202285,10sleep10-21swapper/109:10:561
106891280,1ptp4l401ktimersoftd/314:41:013
106891280,0ptp4l401ktimersoftd/309:16:393
21913992722,3cyclictest25-21ksoftirqd/111:10:561
21906992722,3cyclictest9-21ksoftirqd/012:20:570
21906992721,3cyclictest9-21ksoftirqd/013:11:080
21906992721,3cyclictest9-21ksoftirqd/011:40:500
21906992721,3cyclictest9-21ksoftirqd/011:40:500
21906992721,3cyclictest9-21ksoftirqd/009:25:340
21906992721,3cyclictest10549-21tr11:05:370
21906992720,4cyclictest9-21ksoftirqd/012:49:370
21913992621,3cyclictest25-21ksoftirqd/111:30:361
21913992620,3cyclictest25-21ksoftirqd/114:19:271
21913992620,3cyclictest25-21ksoftirqd/113:15:581
21913992620,3cyclictest25-21ksoftirqd/109:35:541
21906992621,3cyclictest9-21ksoftirqd/013:40:590
21906992621,3cyclictest9-21ksoftirqd/012:26:060
21906992621,3cyclictest9-21ksoftirqd/011:35:570
21906992621,3cyclictest9-21ksoftirqd/010:25:540
21906992620,3cyclictest9-21ksoftirqd/014:41:000
21906992620,3cyclictest9-21ksoftirqd/012:10:540
21906992620,3cyclictest9-21ksoftirqd/011:26:040
21906992620,3cyclictest9-21ksoftirqd/010:15:500
21906992619,4cyclictest9-21ksoftirqd/013:00:520
21906992618,6cyclictest9-21ksoftirqd/013:26:080
21906992618,6cyclictest9-21ksoftirqd/013:26:080
21906992615,9cyclictest9-21ksoftirqd/010:01:040
21926992518,4cyclictest41-21ksoftirqd/311:02:243
21926992518,3cyclictest41-21ksoftirqd/310:00:483
21913992519,3cyclictest25-21ksoftirqd/111:25:361
21913992519,3cyclictest25-21ksoftirqd/109:29:271
21913992518,4cyclictest25-21ksoftirqd/110:34:321
2190699253,13cyclictest121rcu_preempt12:05:550
21906992520,3cyclictest9-21ksoftirqd/012:00:560
21906992520,3cyclictest9-21ksoftirqd/009:25:520
21906992519,3cyclictest9-21ksoftirqd/012:35:390
21906992519,3cyclictest9-21ksoftirqd/010:45:490
21906992519,3cyclictest9-21ksoftirqd/010:30:520
21906992519,3cyclictest9-21ksoftirqd/009:50:340
21906992518,4cyclictest9-21ksoftirqd/012:39:090
21906992517,3cyclictest9-21ksoftirqd/011:45:510
21926992419,3cyclictest41-21ksoftirqd/314:05:563
21913992419,3cyclictest25-21ksoftirqd/111:55:521
21913992418,3cyclictest25-21ksoftirqd/114:35:421
21913992418,3cyclictest25-21ksoftirqd/114:25:551
21913992418,3cyclictest25-21ksoftirqd/110:53:141
21913992417,5cyclictest25-21ksoftirqd/114:11:431
21913992417,4cyclictest25-21ksoftirqd/111:30:451
21913992417,4cyclictest25-21ksoftirqd/111:00:051
21906992419,3cyclictest9-21ksoftirqd/013:45:520
21906992419,3cyclictest9-21ksoftirqd/009:15:470
21906992418,3cyclictest9-21ksoftirqd/014:20:410
21906992418,3cyclictest9-21ksoftirqd/010:59:200
21906992417,4cyclictest9-21ksoftirqd/011:23:370
21906992417,4cyclictest9-21ksoftirqd/010:53:300
2190699241,3cyclictest121rcu_preempt14:28:290
106891240,1ptp4l401ktimersoftd/312:45:413
106891240,1ptp4l401ktimersoftd/310:38:413
106891240,1ptp4l401ktimersoftd/309:55:563
106891240,0ptp4l401ktimersoftd/310:12:043
2191399239,4cyclictest25-21ksoftirqd/113:55:591
2191399233,17cyclictest15659-21grep12:20:541
21913992318,3cyclictest25-21ksoftirqd/114:05:411
21913992318,3cyclictest25-21ksoftirqd/111:44:121
21913992318,3cyclictest25-21ksoftirqd/111:44:121
21913992317,3cyclictest25-21ksoftirqd/110:19:301
21906992317,3cyclictest9-21ksoftirqd/009:40:340
106891230,1ptp4l401ktimersoftd/309:25:423
21913992217,3cyclictest25-21ksoftirqd/113:10:551
21913992217,3cyclictest25-21ksoftirqd/112:15:581
21913992217,3cyclictest25-21ksoftirqd/109:32:361
21913992215,4cyclictest25-21ksoftirqd/110:12:081
21906992217,3cyclictest9-21ksoftirqd/012:55:540
21906992216,3cyclictest9-21ksoftirqd/009:40:540
21906992215,4cyclictest9-21ksoftirqd/009:51:480
21906992215,4cyclictest9-21ksoftirqd/009:51:480
2191399215,13cyclictest251862sleep113:03:241
21913992116,3cyclictest25-21ksoftirqd/110:05:351
21913992115,3cyclictest25-21ksoftirqd/111:07:231
21913992115,3cyclictest25-21ksoftirqd/109:18:001
21913992114,4cyclictest8388-21/usr/sbin/munin11:00:541
21913992114,4cyclictest26980-21sh14:44:081
21913992114,4cyclictest25-21ksoftirqd/110:41:151
21913992114,4cyclictest25-21ksoftirqd/109:49:441
21913992114,4cyclictest21603-21awk14:05:571
21913992113,5cyclictest27133-21cstates13:05:531
2191399208,5cyclictest15279-21diskmemload12:30:501
21913992015,3cyclictest25-21ksoftirqd/111:35:551
21913992014,4cyclictest25-21ksoftirqd/110:25:571
21913992014,4cyclictest25-21ksoftirqd/109:53:491
21913992014,4cyclictest25-21ksoftirqd/109:53:491
21913992014,3cyclictest3672-21processes09:40:581
21913992014,3cyclictest25621-21expr09:20:491
21913992014,3cyclictest25-21ksoftirqd/109:59:471
21913992014,3cyclictest18504-21if_enp1s011:50:561
21913992014,3cyclictest13233-21ls11:45:511
21913992013,4cyclictest7331-21apt-get12:45:501
21913992013,4cyclictest5751-21fschecks_time12:10:541
21913992013,3cyclictest5003-21latency_hist12:10:381
21913992012,5cyclictest6314-21apt-get13:50:521
21913992010,8cyclictest30740-21seq10:38:531
21913992010,7cyclictest24532-21gltestperf13:35:571
21906992013,4cyclictest7390-21sed13:51:000
2191399195,11cyclictest28922-21ssh13:40:531
21913991914,3cyclictest25-21ksoftirqd/112:25:501
21913991913,3cyclictest25-21ksoftirqd/111:15:541
21913991913,3cyclictest2125-21sh12:40:391
21913991913,3cyclictest20766-21sed13:31:111
21913991913,3cyclictest18476-21sendmail_mailqu12:56:031
21913991913,3cyclictest1327-21expr10:45:511
21913991912,4cyclictest25-21ksoftirqd/110:08:191
21913991912,4cyclictest1597-21cstates13:45:551
21913991912,4cyclictest15352-21sh13:26:011
21913991912,4cyclictest15352-21sh13:26:011
21913991912,4cyclictest13835-21latency_hist13:25:401
21913991912,4cyclictest13835-21latency_hist13:25:401
21913991711,3cyclictest22128-21gltestperf10:20:501
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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