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2026-09-24 - 22:38
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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 Sep 24, 2026 12:44:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25862212311,83sleep125943-21grep07:04:201
25862212311,83sleep125943-21grep07:04:201
264499911848,35cyclictest3340-21latency07:33:591
26444991133,28cyclictest343-21runrttasks12:17:590
26444991093,20cyclictest12620-21apt-get08:03:470
264449910746,54cyclictest0-21swapper/009:14:100
26444991063,29cyclictest6530-21/usr/sbin/munin11:59:030
264449910545,55cyclictest0-21swapper/008:24:080
26444991044,52cyclictest7769-21apt-get07:48:450
264449910418,32cyclictest3977-21latency11:53:580
264549910255,40cyclictest31458-21sh11:45:122
264449910221,73cyclictest26447-21latency_hist07:08:370
264449910221,73cyclictest26447-21latency_hist07:08:370
26444991013,25cyclictest27545-21runrttasks12:33:440
26444991012,25cyclictest27344-21fschecks_count08:48:540
26444991012,25cyclictest27344-21fschecks_count08:48:540
264499910024,36cyclictest0-21swapper/111:22:401
26444991003,28cyclictest19205-21/usr/sbin/munin09:38:340
26444991003,28cyclictest19205-21/usr/sbin/munin09:38:340
26444991002,34cyclictest31990-21latency09:58:590
264449910014,27cyclictest26402-21sort09:49:080
26444999936,58cyclictest0-21swapper/011:09:010
26444999936,58cyclictest0-21swapper/011:09:010
2644499993,32cyclictest18223-21latency11:23:580
2644499993,30cyclictest1195-21/usr/sbin/munin09:08:480
2644499993,30cyclictest1195-21/usr/sbin/munin09:08:480
2644499993,29cyclictest5470-21idleruntime10:09:010
2644499992,26cyclictest29181-21ssh10:48:540
2644499983,23cyclictest24863-21cut12:28:580
26449999771,18cyclictest26442-21cyclictest11:29:061
26449999771,18cyclictest26442-21cyclictest11:29:061
26449999751,37cyclictest0-21swapper/109:33:351
26449999751,37cyclictest0-21swapper/109:33:351
2644499975,29cyclictest25840-21munin-run10:43:340
2644499974,28cyclictest11677-21/usr/sbin/munin11:13:570
2644499973,32cyclictest200-21systemd-journal12:08:340
2644499973,27cyclictest18849-21taskset08:23:340
2644499973,24cyclictest10229-21/usr/sbin/munin09:24:060
2644499972,28cyclictest343-21runrttasks08:56:510
2644499972,25cyclictest26425-21apt-get11:38:480
2644499972,25cyclictest26425-21apt-get11:38:480
2644499964,32cyclictest1524-21cut07:29:140
26444999636,53cyclictest0-21swapper/008:43:360
2644499963,28cyclictest14223-21awk10:23:490
2644499963,23cyclictest15924-21latency_hist09:33:380
2644499963,23cyclictest15924-21latency_hist09:33:380
2644499962,27cyclictest24796-21head11:34:100
2644499956,11cyclictest0-21swapper/010:48:360
2644499956,11cyclictest0-21swapper/010:48:360
2644499954,29cyclictest715-21unixbench_multi10:54:110
26444999537,51cyclictest0-21swapper/010:18:500
2644499953,32cyclictest6510-21cut11:04:080
2644499953,31cyclictest1093-21latency_hist09:08:370
2644499953,29cyclictest2405-21ssh11:51:180
2644499953,29cyclictest2405-21ssh11:51:180
2644499953,24cyclictest14721-21/usr/sbin/munin11:18:420
26444999531,56cyclictest0-21swapper/011:43:530
26444999528,61cyclictest10929-21latency_hist07:58:370
26444999528,61cyclictest10929-21latency_hist07:58:370
2644499952,40cyclictest24298-21latency_hist12:28:350
2644499952,40cyclictest24298-21latency_hist12:28:350
255302959,58sleep225533-21ntpq07:04:122
255302959,58sleep225533-21ntpq07:04:122
2644499943,31cyclictest15593-21runrttasks08:13:340
2644499943,28cyclictest17913-21/usr/sbin/munin10:29:110
2644499942,27cyclictest17332-21latency_hist08:18:360
2644499942,25cyclictest834-21gpgv07:28:340
26444999412,25cyclictest22966-21sh09:43:590
26444999412,25cyclictest22966-21sh09:43:590
26454999346,41cyclictest12173-21latency11:13:562
2644499933,31cyclictest20295-21grep09:39:080
2644499933,30cyclictest20790-21taskset11:28:510
2644499933,30cyclictest20790-21taskset11:28:510
2644499932,27cyclictest22497-21cut08:33:550
26454999269,15cyclictest28763-21fschecks_count09:53:552
26454999269,15cyclictest28763-21fschecks_count09:53:552
26449999242,43cyclictest27235-21latency_hist12:33:361
2644499924,27cyclictest27085-21latency_hist08:48:360
2644499924,27cyclictest27085-21latency_hist08:48:360
2644499923,32cyclictest26813-21fschecks_count07:08:560
2644499923,28cyclictest10993-21/usr/sbin/munin07:59:090
2644499922,31cyclictest31667-21idleruntime-cro07:23:340
2644499913,33cyclictest10780-21taskset10:18:330
2644499913,32cyclictest4823-21grep07:38:560
2644499913,31cyclictest29471-21/usr/sbin/munin09:54:100
2644499913,31cyclictest29471-21/usr/sbin/munin09:54:100
2644499913,28cyclictest4918-21latency_hist10:08:360
2644499913,26cyclictest3835-21/usr/sbin/munin10:59:140
2644499913,24cyclictest28898-21fschecks_time07:13:580
2644499912,28cyclictest12781-21ssh12:08:590
26444999110,12cyclictest0-21swapper/009:19:000
26454999060,19cyclictest10074-21sh09:23:372
26449999040,39cyclictest0-21swapper/112:03:361
2644499904,29cyclictest18528-21/usr/sbin/munin12:18:410
2644499903,33cyclictest20201-21/usr/sbin/munin10:33:490
2644499903,30cyclictest30583-21fschecks_count08:58:570
2644499903,28cyclictest4451-21latency_hist07:38:360
2644499902,28cyclictest20890-21sort08:28:560
26449998950,34cyclictest26442-21cyclictest07:54:011
26449998950,34cyclictest26442-21cyclictest07:54:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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