You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-06-09 - 16:18
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 Mon Jun 09, 2025 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21453210914,60sleep120969-21apt-get07:03:211
2823621080,5sleep10-21swapper/110:03:111
22971991013,43cyclictest26245-21ssh11:53:232
229719910082,12cyclictest23620-21ssh10:53:092
22971999846,45cyclictest20482-21awk12:38:082
22971999777,14cyclictest26376-21sh09:59:052
22971999535,50cyclictest0-21swapper/207:43:412
2297199944,37cyclictest11362-21/usr/sbin/munin11:28:352
2297199944,36cyclictest26008-21grep08:53:372
2297199944,36cyclictest26008-21grep08:53:372
22971999443,44cyclictest18815-21latency_hist08:33:132
22971999443,44cyclictest18815-21latency_hist08:33:132
22971999435,50cyclictest0-21swapper/211:18:122
2297199943,36cyclictest21131-21cut08:38:332
2297199934,37cyclictest20693-21sendmail08:38:092
22971999328,12cyclictest0-21swapper/208:08:412
2297199932,36cyclictest17644-21fschecks_time11:38:352
2297199932,36cyclictest17644-21fschecks_time11:38:352
2148529313,47sleep221473-21apt-get07:03:302
2297199928,48cyclictest32271-21expr11:08:302
22971999244,40cyclictest0-21swapper/207:13:142
2297199923,37cyclictest28963-21latency_hist09:03:122
2297199923,35cyclictest17112-21latency_hist11:38:112
2297199923,31cyclictest8910-21modprobe08:03:092
2297199922,34cyclictest5348-21grep10:18:502
22964999267,17cyclictest202-21systemd-journal08:13:541
22964999267,17cyclictest202-21systemd-journal08:13:541
22971999134,50cyclictest4883-21ssh09:18:492
2297199913,36cyclictest8823-21latency_hist09:28:112
2297199913,36cyclictest8823-21latency_hist09:28:112
2297199913,36cyclictest29252-21ssh11:03:102
2297199904,33cyclictest20481-21/usr/sbin/munin09:48:442
2297199904,30cyclictest13970-21latency_hist08:18:112
2297199904,30cyclictest13970-21latency_hist08:18:112
2297199903,36cyclictest1216-21fschecks_count09:13:332
2297199903,30cyclictest22927-21sh09:53:322
22971999032,50cyclictest0-21swapper/211:03:382
22971999032,50cyclictest0-21swapper/211:03:382
2297199902,36cyclictest356-21runrttasks07:54:342
22964999049,14cyclictest181rcu_preempt07:29:261
2297199894,37cyclictest3759-21latency_hist07:48:132
2297199894,36cyclictest16315-21needreboot08:23:332
2297199894,36cyclictest16315-21needreboot08:23:332
2297199894,34cyclictest28137-21modprobe07:23:092
22971998940,41cyclictest0-21swapper/210:23:282
22971998937,41cyclictest0-21swapper/209:28:292
2297199893,35cyclictest30256-21fschecks_time07:28:292
2297199893,34cyclictest31894-21fschecks_time07:33:312
2297199893,34cyclictest2705-21/usr/sbin/munin12:08:432
22964998967,14cyclictest11618-21ssh09:33:111
2296499895,55cyclictest31-21ksoftirqd/108:11:211
22956998917,27cyclictest29244-21apt-get11:58:240
2297199884,36cyclictest24930-21grep10:53:542
2297199884,36cyclictest24930-21grep10:53:542
2297199884,35cyclictest23332-21fschecks_count07:08:312
2297199884,35cyclictest12847-21/usr/sbin/munin10:33:232
2297199884,34cyclictest356-21runrttasks12:07:332
2297199884,34cyclictest356-21runrttasks12:07:332
2297199884,33cyclictest8355-21latency_hist12:18:122
22971998837,45cyclictest0-21swapper/210:13:362
22971998837,45cyclictest0-21swapper/210:13:362
2297199883,36cyclictest30695-21/usr/sbin/munin09:08:382
2297199883,36cyclictest30695-21/usr/sbin/munin09:08:382
2297199883,34cyclictest28621-21fschecks_count07:23:322
2297199883,34cyclictest14486-21/usr/sbin/munin09:38:432
2297199883,33cyclictest12734-21unixbench_singl12:23:472
2297199883,28cyclictest16120-21/usr/sbin/munin10:38:392
22971998830,8cyclictest0-21swapper/211:58:402
2297199882,37cyclictest1146-21latency_hist10:13:112
2297199882,35cyclictest20844-21latency_hist10:48:112
2297199882,35cyclictest20844-21latency_hist10:48:112
22956998817,30cyclictest28419-21apt-get07:23:220
2297199874,36cyclictest15612-21modprobe08:23:082
2297199874,36cyclictest15612-21modprobe08:23:082
2297199874,35cyclictest14623-21/usr/sbin/munin12:28:462
2297199874,34cyclictest30373-21latency_hist09:08:122
2297199874,32cyclictest23480-21fschecks_count11:48:302
2297199874,28cyclictest356-21runrttasks07:38:142
2297199874,26cyclictest28458-21ssh10:03:232
2297199874,26cyclictest28458-21ssh10:03:232
2297199873,38cyclictest12423-21ssh10:32:512
2297199873,36cyclictest11460-21latency_hist12:23:112
22971998733,46cyclictest0-21swapper/211:48:112
2297199873,31cyclictest13763-21rm09:36:532
22964998735,29cyclictest31-21ksoftirqd/111:58:321
2296499873,48cyclictest31-21ksoftirqd/109:56:011
22956998752,29cyclictest22946-21cyclictest09:17:110
22956998737,44cyclictest0-21swapper/008:58:390
2297199864,32cyclictest25519-21latency_hist08:53:112
22964998656,21cyclictest3040-21fschecks_time12:08:341
2297199854,35cyclictest356-21runrttasks11:26:102
2297199854,26cyclictest17280-21ssh09:43:222
2297199853,37cyclictest9269-21ls08:03:272
22964998567,12cyclictest356-21runrttasks10:23:271
22964998530,8cyclictest0-21swapper/111:43:121
2297199843,32cyclictest22821-21fschecks_time08:43:332
2297199843,25cyclictest6374-21grep11:18:482
2297199843,25cyclictest6374-21grep11:18:482
22964998463,12cyclictest29257-21fschecks_time09:03:341
2296499845,52cyclictest31-21ksoftirqd/110:37:041
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional

 
OSZAR »