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2026-04-02 - 14:29
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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 100 highest latencies:
System rackbslot6.osadl.org (updated Thu Apr 02, 2026 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911040,33ptp4l401ktimersoftd/320:06:113
305982710,2sleep10-21swapper/100:31:281
141442680,3sleep022451-21diskmemload23:41:280
206072590,1sleep20-21swapper/223:14:482
248162580,4sleep224584-21sh23:51:342
156822560,2sleep20-21swapper/200:47:592
2911099558,11cyclictest18334-21grep00:51:323
2909899550,3cyclictest25228-21ssh22:12:341
2911099523,12cyclictest27296-21ls23:21:323
2911099522,11cyclictest15950-21awk20:46:343
29104995240,6cyclictest33-21ksoftirqd/221:06:242
2911099513,11cyclictest32071-21munin-node20:16:123
2911099512,11cyclictest7393-21grep00:06:383
2911099511,13cyclictest14544-21gltestperf23:41:313
224052510,2sleep20-21swapper/201:26:572
224052510,2sleep20-21swapper/201:26:572
2911099502,12cyclictest2290-21sed21:26:303
2911099502,11cyclictest5863-21latency_hist00:06:163
2911099501,11cyclictest25415-21wc23:51:433
2911099501,10cyclictest27712-21latency_hist01:01:173
29104995037,6cyclictest33-21ksoftirqd/201:21:282
2911099498,6cyclictest30366-21timerandwakeup21:16:403
2911099492,10cyclictest4854-21cron20:26:113
2911099491,11cyclictest2917-21cat00:36:173
2909899499,19cyclictest1055-21runrttasks22:42:391
288942494,33sleep20-21swapper/220:10:092
2911099487,8cyclictest24904-21irqrtprio21:06:313
2911099482,11cyclictest2240-21ssh22:21:443
2909899480,4cyclictest3222-21ssh00:01:551
2911099477,7cyclictest2620-21cp20:21:113
2911099477,7cyclictest20140-21latency_hist22:06:133
2911099476,6cyclictest31442-21munin-run20:16:103
29104994736,6cyclictest33-21ksoftirqd/200:31:282
2909899470,5cyclictest0-21swapper/101:27:141
2909899470,5cyclictest0-21swapper/101:27:141
2911099465,7cyclictest31856-21taskset23:26:263
2911099461,16cyclictest20160-21apt-key01:26:183
2911099461,16cyclictest20160-21apt-key01:26:183
2911099461,10cyclictest8810-21latency_hist23:36:153
2911099461,10cyclictest8810-21latency_hist23:36:153
2909899460,4cyclictest27507-21ssh23:54:461
2909899460,3cyclictest9057-21ssh00:08:311
74342450,1sleep10-21swapper/120:31:111
2911099458,7cyclictest23450-21expr23:16:443
2911099452,15cyclictest21666-21irqrtprio00:21:343
2911099451,10cyclictest12102-21sed01:16:463
2911099450,12cyclictest26317-21mailstats22:46:373
2909899451,36cyclictest10454-21apt-get01:16:301
2911099448,7cyclictest16490-21cut21:56:323
2911099441,10cyclictest8721-21expr21:41:253
2909899440,3cyclictest2506-21taskset23:28:511
2911099436,7cyclictest20936-21irqstats22:41:323
2911099434,6cyclictest0-21swapper/322:11:133
2911099432,9cyclictest2023-21ssh01:40:503
29104994312,4cyclictest33-21ksoftirqd/200:41:172
2909899430,3cyclictest233-21systemd-journal21:12:251
2911099427,5cyclictest41-21ksoftirqd/323:49:113
2911099423,5cyclictest0-21swapper/323:06:143
29104994233,4cyclictest33-21ksoftirqd/220:16:212
29104994230,6cyclictest33-21ksoftirqd/221:16:242
2909899421,4cyclictest26701-21/usr/sbin/munin01:31:411
2911099417,4cyclictest41-21ksoftirqd/322:17:423
2911099407,5cyclictest41-21ksoftirqd/322:55:013
2911099407,4cyclictest41-21ksoftirqd/323:38:413
2911099407,4cyclictest41-21ksoftirqd/323:38:413
2911099401,7cyclictest7859-21ssh22:27:573
29104994029,6cyclictest33-21ksoftirqd/221:46:242
29104994029,6cyclictest33-21ksoftirqd/221:46:242
29104994029,5cyclictest33-21ksoftirqd/220:21:222
29104994027,10cyclictest33-21ksoftirqd/223:46:312
29104994024,5cyclictest33-21ksoftirqd/200:56:172
2909899403,29cyclictest29795-21apt-get22:51:261
2909899402,32cyclictest15639-21apt-get21:56:251
2909899402,31cyclictest5302-21apt-get22:26:251
2909899401,3cyclictest12977-21sh23:40:021
2909899401,3cyclictest12977-21sh23:40:021
106891400,1ptp4l401ktimersoftd/301:12:493
2911099398,5cyclictest41-21ksoftirqd/323:57:533
2911099396,4cyclictest41-21ksoftirqd/300:44:493
2911099392,5cyclictest0-21swapper/300:11:313
106891390,1ptp4l401ktimersoftd/300:31:073
2911099381,9cyclictest12529-21apt-get00:46:203
2910499389,6cyclictest33-21ksoftirqd/201:41:182
2910499388,4cyclictest33-21ksoftirqd/220:41:112
2910499384,5cyclictest33-21ksoftirqd/221:01:122
29104993827,8cyclictest33-21ksoftirqd/222:56:432
29104993825,10cyclictest33-21ksoftirqd/222:26:422
29104993814,22cyclictest33-21ksoftirqd/223:01:332
29098993814,21cyclictest11217-21/usr/sbin/munin20:36:311
106891380,1ptp4l401ktimersoftd/322:40:093
106891380,1ptp4l401ktimersoftd/322:15:533
106891380,1ptp4l401ktimersoftd/301:26:043
106891380,1ptp4l401ktimersoftd/301:06:523
2911099378,5cyclictest41-21ksoftirqd/300:20:153
2911099375,7cyclictest26858-21fschecks_time21:11:263
2910499374,6cyclictest33-21ksoftirqd/200:01:152
29104993732,3cyclictest33-21ksoftirqd/222:01:132
29104993725,3cyclictest33-21ksoftirqd/201:11:382
2909899378,19cyclictest4508-21sh22:25:351
2909899373,27cyclictest15082-21apt-get22:36:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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