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2026-07-16 - 18:25
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot7.osadl.org (updated Thu Jul 16, 2026 12:44:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7380218216,129sleep17398-21ls06:56:581
7380218216,129sleep17398-21ls06:56:581
7472991153,54cyclictest30193-21ssh09:22:062
74729910567,23cyclictest0-21swapper/211:07:122
74729910547,15cyclictest32736-21sh10:19:052
7472991045,49cyclictest8982-21apt-get07:02:092
74729910339,14cyclictest0-21swapper/207:26:572
74729910319,36cyclictest27946-21sh11:58:272
74609910226,42cyclictest18836-21ssh09:57:090
74609910221,31cyclictest18016-21apt-get07:27:050
74729910137,12cyclictest0-21swapper/207:42:292
747299983,66cyclictest555-21apt-get08:12:192
7460999719,31cyclictest31178-21apt-get08:07:060
747299962,43cyclictest12081-21grep07:07:252
71332966,15sleep20-21swapper/206:54:342
71332966,15sleep20-21swapper/206:54:342
7465999549,8cyclictest181rcu_preempt10:02:561
7465999549,8cyclictest181rcu_preempt10:02:561
7460999522,28cyclictest10245-21apt-get08:42:060
7460999522,28cyclictest10245-21apt-get08:42:060
7460999515,38cyclictest0-21swapper/007:07:160
7472999466,19cyclictest2374-21systemd-journal10:23:192
7472999466,19cyclictest2374-21systemd-journal10:23:192
7460999430,20cyclictest26869-21latency_hist09:17:190
7460999430,20cyclictest26869-21latency_hist09:17:190
747299932,43cyclictest19270-21latency09:57:202
747299932,40cyclictest17594-21sed10:47:292
7472999174,12cyclictest17173-21idleruntime-cro11:41:542
7472999174,12cyclictest17173-21idleruntime-cro11:41:542
746099918,43cyclictest23894-21rm10:57:500
7472999057,24cyclictest5285-21latency_hist11:21:572
7465999070,13cyclictest24731-21journal-offline07:47:271
7460999062,21cyclictest4424-21grep09:32:260
7472998965,17cyclictest1-21systemd10:46:542
747899882,42cyclictest10193-21chrt12:22:323
7472998764,17cyclictest5498-21threads10:27:302
7460998722,22cyclictest20513-21apt-get11:47:090
7460998721,21cyclictest28939-21apt-get11:07:270
747299865,38cyclictest25034-21df_inode10:07:132
746599862,54cyclictest31-21ksoftirqd/109:42:401
7460998658,20cyclictest10240-21latency09:42:200
7460998618,38cyclictest26847-21runrttasks07:52:540
7465998567,12cyclictest3624-21latency_hist09:31:571
7465998567,12cyclictest3624-21latency_hist09:31:571
7465998548,13cyclictest181rcu_preempt07:33:201
7465998512,49cyclictest31-21ksoftirqd/109:20:001
746099854,69cyclictest25680-21runrttasks10:07:290
7460998517,19cyclictest15280-21rm10:43:590
7460998510,35cyclictest13497-21dpkg08:52:040
7472998462,16cyclictest31538-21kernelversion08:07:202
7460998455,22cyclictest3544-21latency_hist09:31:570
7460998455,22cyclictest3544-21latency_hist09:31:570
7460998440,23cyclictest14851-21diskmemload09:49:570
7460998437,26cyclictest0-21swapper/009:23:190
7460998423,32cyclictest0-21swapper/012:08:180
7460998423,26cyclictest2815-21/usr/sbin/munin11:17:160
7460998416,25cyclictest0-21swapper/010:47:320
7465998358,8cyclictest181rcu_preempt11:32:181
7465998322,25cyclictest31-21ksoftirqd/106:59:271
7465998322,25cyclictest31-21ksoftirqd/106:59:271
7472998250,11cyclictest181rcu_preempt07:37:082
7460998226,30cyclictest0-21swapper/009:08:150
7460998226,30cyclictest0-21swapper/009:08:150
7465998163,11cyclictest24590-21ssh11:52:321
7465998149,9cyclictest181rcu_preempt11:56:581
746599813,57cyclictest555-21apt-get08:12:191
7460998163,12cyclictest18191-21ssh09:02:110
7460998127,18cyclictest29500-21ssh12:02:040
7460998126,29cyclictest10603-21sh12:23:400
7460998122,28cyclictest23518-21apt-get11:52:100
7460998120,27cyclictest8600-21runrttasks09:39:340
7460998114,28cyclictest20674-21unixbench_multi10:52:290
7460998114,25cyclictest352-21runrttasks10:23:570
7460998114,25cyclictest352-21runrttasks10:23:570
746599807,45cyclictest31-21ksoftirqd/111:38:281
746599807,45cyclictest31-21ksoftirqd/111:38:281
7465998041,17cyclictest31-21ksoftirqd/110:49:201
7465998012,42cyclictest31-21ksoftirqd/108:51:221
7460998018,27cyclictest6633-21sh11:22:400
7460998013,30cyclictest9919-21apt-get07:02:380
7460998011,30cyclictest318192chrt10:17:510
747899793,31cyclictest19743-21chrt11:45:443
7472997960,12cyclictest58-21kcompactd010:52:172
746599799,42cyclictest31-21ksoftirqd/110:27:321
7465997960,13cyclictest16113-21sh08:57:301
7465997960,13cyclictest16113-21sh08:57:301
7465997936,10cyclictest181rcu_preempt08:37:241
7460997935,34cyclictest0-21swapper/010:27:210
7460997934,37cyclictest29536-21apt-get08:02:100
7460997921,27cyclictest12306-21sh10:39:040
7460997918,22cyclictest27062-21ssh11:57:230
7460997914,29cyclictest28503-21/usr/sbin/munin07:57:260
7460997912,21cyclictest0-21swapper/009:20:070
7460997910,32cyclictest11492-21/usr/sbin/munin11:32:030
7472997827,26cyclictest10056-21taskset08:41:572
7465997849,8cyclictest181rcu_preempt11:06:581
7465997849,8cyclictest181rcu_preempt11:06:581
7465997839,8cyclictest181rcu_preempt12:07:131
7465997832,26cyclictest7449-21cyclictest12:16:301
7465997830,9cyclictest181rcu_preempt10:33:521
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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