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2026-03-13 - 00:11
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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 Thu Mar 12, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2656721750,3sleep341-21ksoftirqd/311:53:373
508621610,5sleep21763299cyclictest11:30:322
2553621460,4sleep31764199cyclictest12:58:493
1877721410,5sleep21763299cyclictest11:45:132
1068911210,7ptp4l26343-21kworker/3:107:55:063
170312933,72sleep017158-21/usr/sbin/munin07:55:210
16032810,3sleep21763299cyclictest13:06:432
305952690,2sleep20-21swapper/209:30:112
119012610,2sleep30-21swapper/311:38:483
17641995812,33cyclictest10513-21unixbench_singl10:30:223
106891580,1ptp4l401ktimersoftd/308:56:223
282162550,1sleep00-21swapper/012:28:030
152092530,2sleep20-21swapper/211:41:032
282372500,2sleep20-21swapper/212:28:052
228682490,2sleep00-21swapper/010:10:160
142442490,2sleep00-21swapper/013:20:140
106891420,1ptp4l401ktimersoftd/313:25:103
106891410,1ptp4l401ktimersoftd/310:10:043
106891400,1ptp4l401ktimersoftd/312:09:003
17641993913,22cyclictest10683-21expr08:50:043
106891390,1ptp4l401ktimersoftd/312:13:323
106891390,1ptp4l401ktimersoftd/312:13:323
17641993813,22cyclictest14534-21cat11:40:233
17626993817,4cyclictest25-21ksoftirqd/112:15:351
107062380,2sleep10-21swapper/112:10:131
107062380,2sleep10-21swapper/112:10:131
106891380,1ptp4l401ktimersoftd/313:11:073
106891380,1ptp4l401ktimersoftd/312:49:143
106891380,1ptp4l401ktimersoftd/312:35:563
106891380,1ptp4l401ktimersoftd/311:13:053
106891380,1ptp4l401ktimersoftd/311:07:463
106891380,1ptp4l401ktimersoftd/310:50:463
106891380,1ptp4l401ktimersoftd/310:25:453
106891380,1ptp4l401ktimersoftd/310:25:453
106891380,1ptp4l401ktimersoftd/310:18:103
106891380,1ptp4l401ktimersoftd/310:07:093
106891380,1ptp4l401ktimersoftd/310:03:353
1764199371,11cyclictest23718-21sh10:45:063
17626993718,4cyclictest25-21ksoftirqd/108:19:081
17626993717,4cyclictest25-21ksoftirqd/108:49:311
106891370,1ptp4l401ktimersoftd/313:20:093
106891370,1ptp4l401ktimersoftd/313:19:023
106891370,1ptp4l401ktimersoftd/312:42:473
106891370,1ptp4l401ktimersoftd/312:27:023
106891370,1ptp4l401ktimersoftd/311:27:313
106891370,1ptp4l401ktimersoftd/311:22:343
106891370,1ptp4l401ktimersoftd/311:01:543
106891370,1ptp4l401ktimersoftd/310:43:063
106891360,1ptp4l401ktimersoftd/313:03:103
106891360,1ptp4l401ktimersoftd/312:18:153
106891360,1ptp4l401ktimersoftd/311:15:323
106891360,1ptp4l401ktimersoftd/310:57:163
106891360,1ptp4l401ktimersoftd/308:15:123
106891360,0ptp4l401ktimersoftd/312:31:273
106891360,0ptp4l401ktimersoftd/312:03:063
106891360,0ptp4l401ktimersoftd/311:55:523
106891360,0ptp4l401ktimersoftd/309:31:583
17641993510,3cyclictest1055-21runrttasks10:35:133
106891350,0ptp4l401ktimersoftd/312:54:163
24492340,3sleep11762699cyclictest10:23:181
17641993417,14cyclictest41-21ksoftirqd/309:44:453
17626993419,5cyclictest25-21ksoftirqd/111:34:081
1764199339,3cyclictest23621-21cpuspeed_turbos08:10:033
1764199338,3cyclictest20680-21timerandwakeup08:04:533
17641993312,3cyclictest3383-21expr08:35:043
17641993312,3cyclictest3383-21expr08:35:043
17641993310,3cyclictest10217-21phc2sys09:55:123
17632993325,5cyclictest19929-21cron08:04:502
1764199326,4cyclictest19020-21needreboot11:45:153
1764199324,5cyclictest30822-21apt-get08:25:023
17641993212,3cyclictest6446-21sh11:32:513
17641993211,3cyclictest1744-21cat08:30:093
17641993210,4cyclictest32648-21/usr/sbin/munin13:05:183
174162329,12sleep233-21ksoftirqd/207:58:342
106891320,9ptp4l401ktimersoftd/309:51:123
1764199318,3cyclictest18105-21if_enp1s009:05:093
1764199309,4cyclictest18572-21irqrtprio08:00:083
1764199301,9cyclictest20345-21fschecks_time09:10:063
1764199300,7cyclictest9329-21cut08:45:133
1764199298,3cyclictest7751-21apt-key08:44:513
1764199298,3cyclictest25364-21grep09:20:053
1764199297,3cyclictest27364-21cpuspeed_turbos09:25:043
1764199297,3cyclictest1404-21taskset09:36:233
1764199296,3cyclictest32654-21sh10:20:153
1764199293,5cyclictest15218-21apt-get09:00:023
1764199292,7cyclictest29569-21cut08:20:133
1764199292,6cyclictest4354-21apt-get09:45:043
17641992911,3cyclictest23424-21awk09:15:133
17632992922,4cyclictest33-21ksoftirqd/212:50:212
172322296,10sleep10-21swapper/107:56:111
17632992822,3cyclictest33-21ksoftirqd/209:50:032
17632992821,4cyclictest33-21ksoftirqd/208:25:012
17621992823,3cyclictest9-21ksoftirqd/009:24:520
1763299275,15cyclictest23726-21ssh10:45:062
17632992721,3cyclictest33-21ksoftirqd/213:15:262
17632992720,4cyclictest33-21ksoftirqd/210:38:082
17632992720,4cyclictest33-21ksoftirqd/209:06:512
17632992711,12cyclictest1268-21sh08:30:062
17626992721,3cyclictest25-21ksoftirqd/111:50:181
165232270,3sleep01762199cyclictest09:00:140
124182270,2sleep10-21swapper/112:45:141
91622260,3sleep0101ktimersoftd/011:02:310
53392260,5sleep2321ktimersoftd/209:45:132
1763299262,17cyclictest11987-21ssh12:45:102
17632992620,3cyclictest33-21ksoftirqd/208:09:022
17632992619,4cyclictest33-21ksoftirqd/208:21:382
17632992619,4cyclictest33-21ksoftirqd/208:18:372
17626992619,4cyclictest26669-21ssh13:00:101
17626992619,4cyclictest25-21ksoftirqd/109:18:061
17621992620,3cyclictest10799-21ssh13:15:430
17632992520,3cyclictest33-21ksoftirqd/211:35:082
17632992519,3cyclictest33-21ksoftirqd/213:22:002
17632992519,3cyclictest33-21ksoftirqd/211:18:512
17632992519,3cyclictest33-21ksoftirqd/211:10:202
17632992518,4cyclictest33-21ksoftirqd/209:16:022
17632992518,4cyclictest33-21ksoftirqd/208:48:162
17632992518,4cyclictest33-21ksoftirqd/208:42:102
17632992518,4cyclictest33-21ksoftirqd/208:11:182
17632992518,4cyclictest11540-21snmp_o5powerctl12:10:212
17632992518,4cyclictest11540-21snmp_o5powerctl12:10:212
1763299251,20cyclictest7889-21users11:00:232
17626992518,4cyclictest25-21ksoftirqd/109:31:101
17621992519,3cyclictest9-21ksoftirqd/009:57:540
17621992519,3cyclictest15118-21snmp_o5powerctl10:35:180
1763299243,13cyclictest64-21kswapd012:55:092
17632992419,3cyclictest33-21ksoftirqd/213:01:582
17632992418,3cyclictest33-21ksoftirqd/213:25:082
17632992411,10cyclictest1055-21runrttasks10:03:052
1763299240,3cyclictest121rcu_preempt12:08:352
17626992418,3cyclictest25-21ksoftirqd/109:56:171
17626992418,3cyclictest25-21ksoftirqd/108:36:571
17626992418,3cyclictest25-21ksoftirqd/108:36:571
17626992417,4cyclictest25-21ksoftirqd/113:15:461
17626992417,4cyclictest25-21ksoftirqd/110:17:311
17626992417,4cyclictest25-21ksoftirqd/109:44:031
17626992417,4cyclictest25-21ksoftirqd/109:04:461
17626992417,4cyclictest25-21ksoftirqd/108:41:001
17621992418,3cyclictest9-21ksoftirqd/009:27:580
17621992418,3cyclictest9-21ksoftirqd/008:42:120
17621992417,4cyclictest9-21ksoftirqd/009:39:080
17621992417,4cyclictest9-21ksoftirqd/008:29:550
17621992417,4cyclictest9-21ksoftirqd/008:01:330
17621992417,4cyclictest24008-21ssh12:56:120
17621992412,9cyclictest2437-21ptp4l10:55:150
17621992411,10cyclictest22344-21switchtime11:15:220
1762199240,2cyclictest121rcu_preempt11:34:080
106891240,1ptp4l401ktimersoftd/312:20:073
1763299239,4cyclictest5132-21cut13:10:192
1763299232,12cyclictest47150irq/102-ens3-Tx11:55:082
17632992318,3cyclictest33-21ksoftirqd/210:15:142
17632992316,4cyclictest33-21ksoftirqd/210:12:152
17632992316,4cyclictest33-21ksoftirqd/209:41:552
17632992316,4cyclictest33-21ksoftirqd/209:36:172
17632992316,4cyclictest33-21ksoftirqd/209:10:042
17632992316,3cyclictest33-21ksoftirqd/212:44:212
17632992314,5cyclictest15628-21gltestperf09:00:072
1763299231,3cyclictest3655-21snmp_o5powerctl12:35:212
1763299231,2cyclictest0-21swapper/212:00:362
1763299231,19cyclictest2595-21snmp_o5powerctl10:55:192
17626992317,3cyclictest25-21ksoftirqd/111:47:331
17626992317,3cyclictest25-21ksoftirqd/110:00:131
17626992317,3cyclictest25-21ksoftirqd/109:52:051
17626992317,3cyclictest25-21ksoftirqd/108:31:481
17626992317,3cyclictest25-21ksoftirqd/108:24:261
17626992317,3cyclictest25-21ksoftirqd/108:13:231
17626992316,4cyclictest25-21ksoftirqd/111:09:111
17626992316,4cyclictest25-21ksoftirqd/109:22:031
17626992316,4cyclictest25-21ksoftirqd/108:49:551
17626992316,4cyclictest15787-21ssh11:42:031
17621992318,3cyclictest9932-21vmstat11:35:270
17621992317,3cyclictest9-21ksoftirqd/009:44:510
17621992317,3cyclictest9-21ksoftirqd/008:22:080
17621992316,4cyclictest26238-21fschecks_time08:15:070
1762199231,3cyclictest0-21swapper/012:30:070
17632992215,4cyclictest33-21ksoftirqd/210:08:432
17632992215,4cyclictest33-21ksoftirqd/209:55:522
17632992215,4cyclictest33-21ksoftirqd/208:59:082
1763299221,3cyclictest4495-21snmp_o5powerctl08:35:162
1763299221,3cyclictest4495-21snmp_o5powerctl08:35:162
1763299221,3cyclictest28634-21snmp_o5powerctl09:25:172
1763299221,3cyclictest16320-21snmp_o5powerctl12:15:212
1763299220,18cyclictest11174-21diskmemload12:29:572
17626992217,3cyclictest25-21ksoftirqd/112:09:131
17626992216,4cyclictest25-21ksoftirqd/109:26:571
17626992216,3cyclictest25-21ksoftirqd/109:47:151
17626992215,4cyclictest7989-21/usr/sbin/munin11:35:121
1762699220,4cyclictest18971-21open_inodes08:00:111
1762199222,7cyclictest1055-21runrttasks11:25:080
1762199221,5cyclictest7220-21hddtemp_smartct09:50:090
17621992215,4cyclictest9807-21taskset08:45:280
17621992215,4cyclictest3076-21/usr/sbin/munin08:35:060
17621992215,4cyclictest3076-21/usr/sbin/munin08:35:060
17621992215,4cyclictest27667-21/usr/sbin/munin11:55:120
17621992215,4cyclictest21051-21sendmail10:09:530
17621992215,4cyclictest15037-21sed08:59:520
1762199221,18cyclictest11174-21diskmemload13:07:540
31052211,2sleep13115-21ssh12:02:111
17632992115,4cyclictest22335-21ssh12:21:172
17632992115,3cyclictest33-21ksoftirqd/211:52:042
17632992114,4cyclictest15481-21sh11:09:542
1763299211,3cyclictest30476-21users10:50:232
1763299211,16cyclictest32104-21snmp_o5powerctl11:25:202
1763299210,3cyclictest27182-21latency_hist09:24:532
17626992115,3cyclictest25-21ksoftirqd/110:33:411
17626992114,4cyclictest25262-21fschecks_time12:25:111
17626992114,4cyclictest25-21ksoftirqd/108:28:281
17626992114,4cyclictest2110-21/usr/sbin/munin12:35:171
17626992113,5cyclictest5652-21cron10:59:541
1762699210,17cyclictest29732-21bc12:30:071
17621992116,3cyclictest9-21ksoftirqd/010:23:370
17621992115,3cyclictest9-21ksoftirqd/008:25:460
17621992115,3cyclictest28552-21/usr/sbin/munin10:50:220
17621992115,3cyclictest11950-21sort10:00:090
1762199211,3cyclictest27822-21snmp_o5powerctl10:15:180
17621992113,5cyclictest1282-21cat12:00:150
1762199211,17cyclictest19725-21users11:45:240
1763299201,3cyclictest934-21ssh10:20:462
17632992013,4cyclictest11583-21open_inodes08:50:112
1763299201,2cyclictest0-21swapper/210:28:462
1763299201,2cyclictest0-21swapper/210:28:462
1763299201,16cyclictest0-21swapper/210:32:182
17626992016,2cyclictest21097-21ssh12:54:341
17626992014,4cyclictest24321-21sh11:18:121
17626992014,3cyclictest9788-21sh12:41:551
17626992014,3cyclictest29276-21sh11:23:161
17626992014,3cyclictest25-21ksoftirqd/110:46:181
17626992014,3cyclictest25-21ksoftirqd/109:35:381
17626992014,3cyclictest23237-21apt-config10:44:541
17626992013,4cyclictest6844-21cut11:00:121
17626992013,4cyclictest47050irq/101-ens3-Tx13:05:081
17626992013,4cyclictest31480-21sed11:25:131
17626992013,4cyclictest27670-21acpi11:55:061
17626992013,4cyclictest21304-21ptp4l-jitter12:20:181
17626992013,4cyclictest17390-21sh11:10:221
17626992013,4cyclictest17090-21ssh13:23:101
17626992013,4cyclictest13081-21expr08:55:051
17626992013,4cyclictest11174-21diskmemload10:09:481
1762699201,17cyclictest20431-21grep09:10:061
1762199201,6cyclictest9504-21ssh12:41:260
1762199201,5cyclictest19979-21apt-get09:10:030
17621992015,3cyclictest9-21ksoftirqd/013:27:190
17621992014,4cyclictest19935-21apt-get08:04:530
17621992014,3cyclictest9-21ksoftirqd/008:52:150
17621992014,3cyclictest1055-21runrttasks11:51:330
17621992013,4cyclictest9-21ksoftirqd/013:03:160
17621992013,4cyclictest26743-21sed11:20:140
17621992013,4cyclictest17699-21grep11:10:240
17621992013,4cyclictest16087-21phc2sys-jitter12:15:170
17621992013,4cyclictest11174-21diskmemload13:10:090
17621992013,4cyclictest11174-21diskmemload12:11:030
17621992013,4cyclictest11174-21diskmemload12:11:030
17621992013,4cyclictest11174-21diskmemload11:42:150
1762199201,16cyclictest0-21swapper/010:47:070
1762199200,3cyclictest4373-21ssh10:25:100
1762199200,3cyclictest4373-21ssh10:25:100
1762199200,18cyclictest0-21swapper/010:40:420
1762199200,18cyclictest0-21swapper/010:31:180
17632991912,4cyclictest25947-21expr11:20:082
17632991912,4cyclictest19756-21open_inodes10:40:152
1762699196,5cyclictest22917-21phc2sys12:55:181
1762699192,11cyclictest17587-21apt-get09:05:041
1762699191,5cyclictest14190-21hddtemp_smartct10:35:101
17626991913,3cyclictest5155-21expr10:25:151
17626991913,3cyclictest5155-21expr10:25:151
17626991912,4cyclictest22033-21latency08:05:091
17626991912,4cyclictest11174-21diskmemload13:26:151
17626991911,4cyclictest23044-21timerandwakeup10:10:211
1762699190,16cyclictest6377-21ssh13:11:301
17621991914,3cyclictest9-21ksoftirqd/009:18:030
17621991914,3cyclictest9-21ksoftirqd/009:06:230
17621991913,3cyclictest29917-21expr09:30:050
17621991913,3cyclictest17165-21fschecks_count12:50:100
17621991913,3cyclictest11174-21diskmemload12:07:280
17621991912,5cyclictest12441-21tail12:45:140
17621991912,4cyclictest11320-21grep11:05:090
1762199191,16cyclictest0-21swapper/012:38:370
1762199190,16cyclictest21428-21/usr/sbin/munin12:20:210
1762199190,16cyclictest1055-21runrttasks08:13:170
17626991812,3cyclictest11174-21diskmemload10:50:041
17621991811,4cyclictest4403-21cpu09:45:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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