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2025-12-08 - 20:33
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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 rack9slot4.osadl.org (updated Mon Dec 08, 2025 12:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29895112768sleep0-21swapper/115:17:061
30029991178cyclictest0-21swapper/017:47:350
30029991174cyclictest14563-21latency_hist20:22:200
30029991173cyclictest2501-21latency_hist17:17:150
30029991164cyclictest30606-21timerandwakeup19:52:590
30029991159cyclictest0-21swapper/019:48:110
30029991153cyclictest13186-21latency_hist16:07:130
30029991143cyclictest3840-21latency_hist15:37:110
30029991143cyclictest26217-21latency_hist17:57:150
30029991143cyclictest25650-21latency_hist16:47:140
30029991143cyclictest25650-21latency_hist16:47:140
30029991143cyclictest11526-21latency_hist18:27:170
30029991134cyclictest13212-21latency_hist16:07:130
30029991134cyclictest12670-21ntpq19:22:510
30029991133cyclictest15697-21sh19:27:580
30029991124cyclictest5628-21latency_hist19:12:180
30029991114cyclictest5664-21latency_hist18:17:170
30029991113cyclictest17925-21/usr/sbin/munin16:22:480
30029991107cyclictest0-21swapper/018:07:370
30029991099cyclictest0-21swapper/019:06:440
30029991098cyclictest0-21swapper/017:39:570
30029991097cyclictest0-21swapper/015:47:360
30029991094cyclictest25718-21/usr/sbin/munin16:47:440
30029991093cyclictest28711-21latency_hist16:57:150
30029991093cyclictest26269-21latency_hist17:57:160
30029991088cyclictest0-21swapper/019:17:180
30029991087cyclictest0-21swapper/020:47:210
30029991084cyclictest8658-21latency_hist20:12:200
30029991083cyclictest31560-21latency_hist15:22:120
30029991083cyclictest16249-21latency_hist16:17:130
30029991077cyclictest0-21swapper/020:32:500
30029991073cyclictest1-21systemd20:08:300
30029991068cyclictest0-21swapper/017:17:410
30029991064cyclictest8546-21latency_hist18:22:170
30029991064cyclictest74-21mmcqd/015:32:110
30029991064cyclictest6381-21proc_pri15:42:540
30029991057cyclictest0-21swapper/017:32:450
30029991053cyclictest5969-21ssh17:22:340
30029991053cyclictest29652-21needreboot16:57:440
30029991044cyclictest5446-21ssh20:06:360
30029991043cyclictest20322-21ntp_kernel_pll_16:27:450
29506110469sleep0-21swapper/015:16:520
30029991038cyclictest0-21swapper/020:27:550
30029991028cyclictest0-21swapper/017:46:550
30029991024cyclictest30399-21/usr/sbin/munin17:02:440
30029991024cyclictest30399-21/usr/sbin/munin17:02:440
30029991023cyclictest3934-21runrttasks15:37:230
30029991023cyclictest17801-21latency_hist16:22:130
30029991018cyclictest0-21swapper/019:42:200
30029991013cyclictest26304-21latency_hist18:52:180
300299910111cyclictest0-21swapper/019:57:450
3002999998cyclictest0-21swapper/019:45:050
3002999997cyclictest0-21swapper/016:37:440
3002999984cyclictest9285-21grep15:52:460
3002999983cyclictest31834-21latency_hist17:07:150
3002999983cyclictest24719-21timerandwakeup20:38:010
3002999974cyclictest15856-21timerandwakeup20:23:000
3002999967cyclictest0-21swapper/016:32:430
3002999966cyclictest0-21swapper/015:57:510
3002999963cyclictest32078-21tune2fs15:22:300
30029999557cyclictest6950irq/18-mmc019:32:490
3002999954cyclictest11274-21ssh17:31:540
3002999953cyclictest11990-21sshd18:27:360
3002999947cyclictest0-21swapper/018:38:140
30029999411cyclictest29229-21latency_hist18:57:180
3003799904cyclictest2900-21/usr/sbin/munin15:32:351
3003799903cyclictest6544-21/usr/sbin/munin18:17:471
3003799903cyclictest15581-21/usr/sbin/munin20:22:511
3002999908cyclictest0-21swapper/018:02:530
3003799894cyclictest4880-21/usr/sbin/munin15:37:471
3003799894cyclictest1614-21/usr/sbin/munin15:27:401
3003799893cyclictest9394-21/usr/sbin/munin15:52:491
3003799883cyclictest11104-21/usr/sbin/munin15:57:501
3002999889cyclictest0-21swapper/019:19:340
3002999888cyclictest0-21swapper/018:32:570
3002999884cyclictest28241-21ssh18:54:260
3003799873cyclictest6296-21/usr/sbin/munin15:42:491
3002999866cyclictest0-21swapper/018:47:180
30037998538cyclictest22578-21latency_hist16:37:141
30037998536cyclictest4068-21tail19:08:041
30037998334cyclictest27781-21grep20:43:021
30037998232cyclictest480-21systemd-journal16:34:221
3003799823cyclictest304-21snmpd19:51:501
3003799823cyclictest27669-21grep18:53:031
3003799814cyclictest14042-21ssh18:31:051
3003799813cyclictest24644-21/usr/sbin/munin19:42:591
3003799805cyclictest15968-21/usr/sbin/munin16:12:531
3003799804cyclictest8161-21/usr/sbin/munin15:47:501
3003799804cyclictest2686-21sh19:07:181
3003799804cyclictest13805-21/usr/sbin/munin16:07:351
3003799803cyclictest7851-21ssh20:10:011
3003799803cyclictest31153-21/usr/sbin/munin17:02:421
3003799803cyclictest31153-21/usr/sbin/munin17:02:421
3003799794cyclictest27215-21/usr/sbin/munin17:57:481
3003799793cyclictest21333-21/usr/sbin/munin20:32:471
3003799788cyclictest0-21swapper/118:10:381
3003799784cyclictest9476-21/usr/sbin/munin18:22:481
3003799784cyclictest30200-21/usr/sbin/munin19:52:471
3003799784cyclictest29960-21perl18:57:491
3003799783cyclictest21640-21/usr/sbin/munin18:42:581
3003799783cyclictest12762-21/usr/sbin/munin19:22:571
3003799778cyclictest0-21swapper/120:17:521
3003799775cyclictest23550-21/usr/sbin/munin17:52:291
3003799774cyclictest29970-21/usr/sbin/munin18:02:421
3003799774cyclictest25538-21sshd16:46:221
3003799774cyclictest25538-21sshd16:46:221
3003799774cyclictest24902-21/usr/sbin/munin20:38:041
3003799774cyclictest20148-21/usr/sbin/munin16:27:401
3003799774cyclictest15609-21/usr/sbin/munin18:32:591
3003799773cyclictest9690-21/usr/sbin/munin19:17:511
3003799773cyclictest3726-21latency20:02:521
3003799773cyclictest32593-21/usr/sbin/munin19:57:331
3003799773cyclictest30964-21/usr/sbin/munin15:17:421
3003799773cyclictest3024-21ssh17:17:361
3003799773cyclictest24504-21/usr/sbin/munin18:47:561
3003799773cyclictest21192-21/usr/sbin/munin19:37:451
3003799773cyclictest18462-21/usr/sbin/munin16:22:351
3003799773cyclictest16645-21df16:17:341
30037997727cyclictest480-21systemd-journal17:10:231
3003799764cyclictest32433-21/usr/sbin/munin15:22:371
3003799764cyclictest27557-21/usr/sbin/munin16:52:321
3003799764cyclictest15010-21/usr/sbin/munin19:27:391
3003799764cyclictest11895-21diskstats17:32:351
3003799763cyclictest21099-21/usr/sbin/munin17:47:421
3003799763cyclictest18416-21/usr/sbin/munin17:42:481
3003799763cyclictest18360-21/usr/sbin/munin19:32:471
3003799763cyclictest10846-21ssh17:30:391
3003799758cyclictest0-21swapper/120:13:041
3003799758cyclictest0-21swapper/118:12:251
3003799754cyclictest18509-21/usr/sbin/munin18:37:511
3003799754cyclictest14907-21diskstats17:37:441
3003799753cyclictest6654-21sh19:12:491
3003799753cyclictest28849-21/usr/sbin/munin16:57:271
3003799753cyclictest26584-21/usr/sbin/munin16:47:461
3003799753cyclictest18046-21/usr/sbin/munin20:27:431
3003799753cyclictest12445-21/usr/sbin/munin16:02:421
30037997522cyclictest1399-21fschecks_count17:12:341
3003799743cyclictest6712-21processes17:22:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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