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2026-03-28 - 15:44
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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 Sat Mar 28, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3243423250,12sleep332439-21fschecks_count08:03:563
60421500,3sleep3187399cyclictest09:09:103
2892521500,3sleep1186399cyclictest11:14:101
326332620,2sleep00-21swapper/011:51:270
56602600,4sleep1186399cyclictest13:36:111
125472580,4sleep1186399cyclictest10:24:401
16582554,39sleep00-21swapper/008:07:250
187399543,19cyclictest16746-21/usr/sbin/munin13:14:113
239652530,2sleep20-21swapper/211:43:262
186999531,27cyclictest5965-21awk12:29:172
186999531,27cyclictest5965-21awk12:29:172
186999531,23cyclictest21546-21users08:44:102
187399528,12cyclictest30657-21awk11:49:083
1869995216,25cyclictest9268-21expr12:34:022
187399472,18cyclictest28526-21ssh13:26:323
186999470,23cyclictest14881-21snmp_o5powerctl09:39:102
319062440,14sleep0101ktimersoftd/009:08:590
187399444,13cyclictest12303-21sed08:28:423
186999441,26cyclictest16768-21strings13:14:112
186999440,22cyclictest6713-21snmp_o5powerctl08:14:072
186999440,20cyclictest0-21swapper/210:14:022
186999433,19cyclictest19612-21snmp_o5powerctl09:49:112
187399416,10cyclictest22837-21ssh10:35:043
187399414,13cyclictest31866-21sed13:29:183
186999413,30cyclictest12069-21apt-get12:04:002
187399404,12cyclictest23082-21grep09:58:583
106891400,1ptp4l401ktimersoftd/312:00:323
187399394,12cyclictest27899-21sed12:19:093
106891390,1ptp4l401ktimersoftd/310:56:023
187399387,12cyclictest2868-21ssh12:27:203
187399387,12cyclictest2868-21ssh12:27:203
186999380,23cyclictest30705-21awk09:04:112
186999380,22cyclictest12510-21awk09:34:112
186999380,19cyclictest27448-21diskmemload10:28:142
106891380,1ptp4l401ktimersoftd/313:36:433
106891380,1ptp4l401ktimersoftd/313:11:503
106891380,1ptp4l401ktimersoftd/313:03:053
106891380,1ptp4l401ktimersoftd/312:33:153
106891380,1ptp4l401ktimersoftd/312:33:153
106891380,1ptp4l401ktimersoftd/311:37:473
106891380,1ptp4l401ktimersoftd/311:31:243
106891380,1ptp4l401ktimersoftd/311:27:083
106891380,1ptp4l401ktimersoftd/311:15:283
106891380,1ptp4l401ktimersoftd/311:10:593
106891380,1ptp4l401ktimersoftd/311:05:253
106891380,1ptp4l401ktimersoftd/310:51:283
106891380,1ptp4l401ktimersoftd/310:18:143
106891380,0ptp4l401ktimersoftd/312:35:103
1873993716,14cyclictest0-21swapper/312:04:003
186999371,31cyclictest0-21swapper/212:19:002
186999371,20cyclictest23233-21missed_timers08:49:042
106891370,1ptp4l401ktimersoftd/313:20:293
106891370,1ptp4l401ktimersoftd/312:52:233
106891370,1ptp4l401ktimersoftd/312:43:093
106891370,1ptp4l401ktimersoftd/312:10:053
106891370,1ptp4l401ktimersoftd/311:55:133
106891370,1ptp4l401ktimersoftd/311:46:203
106891370,1ptp4l401ktimersoftd/311:41:293
106891370,1ptp4l401ktimersoftd/310:32:103
106891370,1ptp4l401ktimersoftd/310:32:103
106891370,1ptp4l401ktimersoftd/310:24:573
106891370,1ptp4l401ktimersoftd/310:12:283
106891370,0ptp4l401ktimersoftd/310:43:023
106891370,0ptp4l401ktimersoftd/310:43:023
187399365,12cyclictest20103-21rm12:44:113
187399364,12cyclictest13256-21hddtemp_smartct10:59:033
186999364,26cyclictest29497-21apt-get11:48:592
186999361,20cyclictest9368-21timerandwakeup10:54:122
187399354,12cyclictest23895-21ssh12:14:363
186999353,26cyclictest24589-21apt-get08:53:552
186999353,26cyclictest24589-21apt-get08:53:552
186999353,25cyclictest25388-21apt-get10:03:572
186999353,25cyclictest1459-21snmp_o5powerctl11:19:132
1869993515,17cyclictest17211-21grep08:38:422
1869993514,18cyclictest17907-21sh10:30:272
1869993514,18cyclictest17907-21sh10:30:272
1869993514,17cyclictest2572-21cat12:59:152
186999351,30cyclictest28260-21mailstats08:59:062
186999350,21cyclictest96092sleep213:07:332
120842354,6sleep125-21ksoftirqd/112:04:021
187399344,18cyclictest18501-21sed08:39:023
1869993416,15cyclictest14074-21cpuspeed_turbos12:39:012
186999340,19cyclictest27448-21diskmemload11:48:022
186999340,18cyclictest27448-21diskmemload11:28:512
238272330,2sleep2186999cyclictest10:36:452
219252330,3sleep0185799cyclictest11:08:230
187399336,13cyclictest32363-21/usr/sbin/munin11:19:093
186999333,24cyclictest7149-21apt-get11:59:002
186999332,27cyclictest11025-21df_inode13:09:022
1869993315,15cyclictest27667-21sh13:25:042
1869993314,16cyclictest29950-21snmp_o5powerctl12:54:132
1869993314,16cyclictest23244-21expr09:58:592
1869993313,17cyclictest32151-21grep10:44:162
1869993313,17cyclictest32151-21grep10:44:162
186999331,28cyclictest0-21swapper/212:24:022
186999331,28cyclictest0-21swapper/212:24:022
186999331,25cyclictest25445-21sh10:38:572
186999331,25cyclictest25445-21sh10:38:572
186999330,29cyclictest7483-21latency_hist13:38:502
186999330,18cyclictest0-21swapper/211:34:042
236092320,2sleep0185799cyclictest10:36:230
187399324,9cyclictest26974-21apt-get08:58:553
187399320,11cyclictest0-21swapper/309:13:543
186999323,23cyclictest6419-21apt-get09:23:532
186999323,22cyclictest7762-21apt-get08:18:552
186999322,27cyclictest23142-21cat11:09:032
186999322,23cyclictest16970-21apt-get12:09:002
1869993213,16cyclictest25121-21sh12:16:402
1869993213,16cyclictest18120-21cut09:48:452
1869993210,19cyclictest1055-21runrttasks13:20:562
186999320,28cyclictest5445-21/usr/sbin/munin11:24:032
1863993222,3cyclictest25-21ksoftirqd/111:55:301
137822320,2sleep10-21swapper/112:38:541
187399314,16cyclictest2694-21awk08:08:593
187399314,12cyclictest28430-21/usr/sbin/munin12:54:103
1863993126,3cyclictest25-21ksoftirqd/112:38:481
3092306,10sleep20-21swapper/208:04:002
1873993011,12cyclictest0-21swapper/308:53:553
1873993011,12cyclictest0-21swapper/308:53:553
1873993010,17cyclictest26133-21taskset10:04:033
186999303,23cyclictest31907-21expr09:08:592
186999303,21cyclictest12098-21apt-get08:27:362
186999301,25cyclictest22359-21cut11:08:472
1869993012,15cyclictest14724-21latency_hist08:33:422
1869993011,17cyclictest5187-21sshd10:50:012
1869993011,16cyclictest4004-21acpi09:18:552
1869993010,17cyclictest4698-21sh11:55:212
1869993010,17cyclictest30903-21sh11:16:562
1863993025,3cyclictest25-21ksoftirqd/113:33:501
1857993025,3cyclictest9-21ksoftirqd/010:23:540
1857993025,3cyclictest9-21ksoftirqd/008:58:430
1857993025,3cyclictest9-21ksoftirqd/008:58:430
326982295,10sleep10-21swapper/108:03:591
323102290,1sleep00-21swapper/013:29:400
187399293,16cyclictest8056-21ssh13:04:533
1873992913,11cyclictest0-21swapper/309:03:553
187399290,10cyclictest0-21swapper/308:14:103
186999298,17cyclictest18176-21irqrtprio08:39:002
1869992910,16cyclictest1-21systemd08:13:432
186999290,18cyclictest0-21swapper/210:12:042
1863992919,3cyclictest25-21ksoftirqd/112:21:271
1873992811,13cyclictest0-21swapper/310:43:593
1873992811,13cyclictest0-21swapper/310:43:593
1873992810,12cyclictest0-21swapper/309:48:563
186999288,17cyclictest2092-21gltestperf09:13:592
186999281,23cyclictest9850-21sed09:29:062
186999281,23cyclictest6418-21sed10:19:052
186999281,23cyclictest24142-21/usr/sbin/munin12:49:042
186999281,23cyclictest20658-21grep12:44:262
1869992810,15cyclictest21353-21irqrtprio09:54:042
186999280,24cyclictest12865-21cut10:58:592
1857992823,3cyclictest9-21ksoftirqd/013:14:020
187399279,15cyclictest20749-21cpuspeed_turbos09:53:593
1873992710,12cyclictest0-21swapper/308:43:533
186999271,21cyclictest31252-21latency13:29:092
1863992721,3cyclictest25-21ksoftirqd/111:29:291
1857992716,8cyclictest422-21tail11:19:050
187399269,14cyclictest16369-21gltestperf09:44:003
187399263,9cyclictest4938-21irqstats09:19:033
1863992619,4cyclictest25-21ksoftirqd/110:43:231
1863992619,4cyclictest25-21ksoftirqd/110:43:231
1863992619,4cyclictest25-21ksoftirqd/108:26:291
1863992613,3cyclictest25-21ksoftirqd/113:22:071
1857992621,3cyclictest9-21ksoftirqd/012:14:140
1857992621,3cyclictest9-21ksoftirqd/011:43:480
1857992620,4cyclictest9-21ksoftirqd/013:05:590
1857992620,3cyclictest9-21ksoftirqd/010:39:010
1857992620,3cyclictest9-21ksoftirqd/010:39:010
1857992620,3cyclictest9-21ksoftirqd/010:08:560
1857992620,3cyclictest9-21ksoftirqd/010:01:510
1857992620,3cyclictest9-21ksoftirqd/009:37:120
1857992620,3cyclictest9-21ksoftirqd/009:28:440
1857992619,4cyclictest27158-21tail13:24:180
1857992616,5cyclictest28311-21python08:59:070
187399255,5cyclictest0-21swapper/310:18:583
1873992518,4cyclictest41-21ksoftirqd/309:36:003
1857992520,3cyclictest9-21ksoftirqd/013:03:490
1857992519,3cyclictest9-21ksoftirqd/009:38:550
1857992518,4cyclictest9-21ksoftirqd/008:13:190
1857992515,6cyclictest9030-21ssh12:34:010
106891250,1ptp4l401ktimersoftd/309:39:063
106891250,1ptp4l401ktimersoftd/308:18:553
1873992411,9cyclictest9848-21grep09:29:063
1863992419,3cyclictest25-21ksoftirqd/113:13:061
1863992419,3cyclictest25-21ksoftirqd/109:43:441
1863992419,3cyclictest25-21ksoftirqd/108:35:441
1863992418,4cyclictest25-21ksoftirqd/112:49:341
1863992418,3cyclictest25-21ksoftirqd/112:57:001
1863992418,3cyclictest25-21ksoftirqd/108:52:171
1863992418,3cyclictest25-21ksoftirqd/108:45:521
1863992417,4cyclictest25-21ksoftirqd/108:20:351
1857992419,3cyclictest9-21ksoftirqd/012:44:110
1857992419,3cyclictest9-21ksoftirqd/009:58:450
1857992418,3cyclictest9-21ksoftirqd/011:57:540
1857992418,3cyclictest9-21ksoftirqd/009:17:170
1857992418,3cyclictest9-21ksoftirqd/008:27:550
1857992417,4cyclictest9-21ksoftirqd/009:30:030
106891240,1ptp4l401ktimersoftd/308:48:563
106891240,1ptp4l401ktimersoftd/308:33:573
106891240,1ptp4l401ktimersoftd/308:29:003
187399235,13cyclictest0-21swapper/309:23:533
1863992318,3cyclictest25-21ksoftirqd/111:09:141
1863992318,3cyclictest25-21ksoftirqd/109:46:221
1863992317,4cyclictest25-21ksoftirqd/109:37:431
1863992317,3cyclictest25-21ksoftirqd/109:23:001
1863992317,3cyclictest25-21ksoftirqd/108:31:281
1863992316,4cyclictest1965-21grep09:13:591
185799235,6cyclictest1055-21runrttasks11:00:350
185799232,18cyclictest4622-21sed10:49:140
1857992318,3cyclictest9-21ksoftirqd/012:53:480
1857992318,3cyclictest9-21ksoftirqd/010:54:130
1857992317,4cyclictest9-21ksoftirqd/008:31:140
1857992317,3cyclictest9-21ksoftirqd/011:59:070
1857992317,3cyclictest22506-21cut08:48:590
1857992316,4cyclictest9-21ksoftirqd/008:19:330
1857992314,5cyclictest3102-21fschecks_time13:34:060
186399229,4cyclictest25-21ksoftirqd/111:34:121
186399229,4cyclictest22802ls08:08:551
1863992216,4cyclictest25-21ksoftirqd/108:14:161
1863992215,4cyclictest31994-21grep09:09:011
1863992210,10cyclictest47050irq/101-ens3-Tx10:57:551
185799229,3cyclictest18103-21strings12:09:080
1857992217,3cyclictest9-21ksoftirqd/011:29:350
1857992217,3cyclictest9-21ksoftirqd/008:13:450
1857992216,3cyclictest9-21ksoftirqd/008:42:220
1857992216,3cyclictest17568-21grep09:44:130
1857992215,4cyclictest9-21ksoftirqd/012:26:040
1857992215,4cyclictest9-21ksoftirqd/012:26:040
1857992215,4cyclictest9-21ksoftirqd/009:22:240
1857992215,4cyclictest9-21ksoftirqd/009:03:490
1857992215,4cyclictest27393-21/usr/sbin/munin11:14:040
1857992214,5cyclictest5896-21grep12:29:170
1857992214,5cyclictest5896-21grep12:29:170
1857992213,5cyclictest1668-21ptp4l10:14:080
1857992212,7cyclictest19946-21tr08:43:530
185722220,18sleep027448-21diskmemload10:31:350
185722220,18sleep027448-21diskmemload10:31:350
186399212,16cyclictest5401-21sed11:24:021
1863992116,3cyclictest25-21ksoftirqd/113:00:141
1863992116,3cyclictest25-21ksoftirqd/110:00:231
1863992115,4cyclictest25-21ksoftirqd/109:30:121
1863992115,4cyclictest25-21ksoftirqd/109:28:231
1863992115,3cyclictest29650-21grep09:03:591
1863992115,3cyclictest26809-21sh13:24:121
1863992115,3cyclictest12651-21/usr/sbin/munin10:59:051
1863992114,5cyclictest25-21ksoftirqd/111:53:481
1863992114,4cyclictest3513-21sh11:22:061
1863992110,3cyclictest25-21ksoftirqd/111:39:161
1857992116,3cyclictest9-21ksoftirqd/009:49:010
1857992115,4cyclictest9-21ksoftirqd/012:07:010
1857992115,3cyclictest9-21ksoftirqd/011:12:390
1857992114,4cyclictest9-21ksoftirqd/008:35:390
1857992114,4cyclictest6020-21ps10:19:030
185799211,17cyclictest27982-21ssh11:46:540
186399209,8cyclictest241ktimersoftd/113:06:081
1863992015,3cyclictest25-21ksoftirqd/111:04:141
1863992014,4cyclictest0-21swapper/112:27:211
1863992014,4cyclictest0-21swapper/112:27:211
1863992014,3cyclictest28300-21sh11:47:271
1863992014,3cyclictest25-21ksoftirqd/108:41:281
1863992014,3cyclictest22826-21kernelversion12:14:081
1863992014,3cyclictest21234-21if_err_enp1s009:54:031
1863992014,3cyclictest19704-21sh13:18:101
1863992014,3cyclictest18558-21sh12:09:161
1863992013,4cyclictest8615-21sh12:33:481
1863992013,4cyclictest8615-21sh12:33:481
1863992013,4cyclictest25-21ksoftirqd/110:07:181
1863992013,4cyclictest16070-21irqrtprio10:29:031
1863992013,4cyclictest16070-21irqrtprio10:29:031
185799209,8cyclictest25554-21cstates10:03:590
185799202,6cyclictest29950-21snmp_o5powerctl12:54:120
1857992015,3cyclictest9-21ksoftirqd/012:39:010
1857992015,3cyclictest9-21ksoftirqd/011:27:500
1857992013,4cyclictest517-21kworker/0:212:19:010
1857992013,4cyclictest21740-21phc2sys13:19:120
185799200,2cyclictest121rcu_preempt11:36:020
123212200,2sleep00-21swapper/013:09:170
186399195,8cyclictest18782-21apt-get12:44:011
1863991915,3cyclictest25-21ksoftirqd/110:34:031
1863991913,4cyclictest24824-21expr08:53:571
1863991913,4cyclictest24824-21expr08:53:571
1863991913,4cyclictest18457-21expr09:48:581
1863991913,3cyclictest5496-21cat10:18:581
1863991912,4cyclictest2868-21apt-get10:48:561
186399190,4cyclictest855-21ssh10:46:031
186399190,4cyclictest855-21ssh10:46:031
186399190,4cyclictest10212-21rm12:01:201
186399190,17cyclictest0-21swapper/110:09:541
1857991913,3cyclictest31144-21sed10:44:050
1857991913,3cyclictest31144-21sed10:44:050
186399189,7cyclictest766-21fschecks_time10:14:021
186399177,8cyclictest27434-21gltestperf08:59:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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