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2023-03-22 - 11:45

x86 Intel Atom E3845 @1915 MHz, Linux 4.19.37-rt20 (Profile)

Latency plot of system in rack #b, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 Wed Mar 22, 2023 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2231121690,5sleep21284199cyclictest22:49:102
489021640,5sleep31284699cyclictest21:14:163
1522911520,7ptp4l25247-21kworker/3:019:16:513
225021510,5sleep21284199cyclictest22:25:532
12846997458,7cyclictest41-21ksoftirqd/321:19:063
12846997157,6cyclictest41-21ksoftirqd/300:24:093
12846997058,5cyclictest41-21ksoftirqd/322:39:083
12846996652,8cyclictest41-21ksoftirqd/300:29:133
123952654,10sleep00-21swapper/019:14:240
12846996353,5cyclictest41-21ksoftirqd/320:19:003
1283299630,27cyclictest22502-21mailstats23:24:180
1283299630,27cyclictest22502-21mailstats23:24:180
1283299621,26cyclictest15774-21ssh23:54:330
12846996149,6cyclictest41-21ksoftirqd/322:09:083
126722614,10sleep10-21swapper/119:18:001
12846996054,3cyclictest41-21ksoftirqd/300:09:083
152291570,1ptp4l401ktimersoftd/319:44:033
239832560,2sleep3391rcuc/322:14:143
152291560,1ptp4l401ktimersoftd/322:19:303
152291560,1ptp4l401ktimersoftd/321:51:243
12846995647,4cyclictest41-21ksoftirqd/319:54:043
12846995646,4cyclictest41-21ksoftirqd/321:29:073
12846995443,6cyclictest41-21ksoftirqd/320:44:003
1283299540,23cyclictest17870-21rm22:07:580
91022530,1sleep20-21swapper/223:47:362
273542530,2sleep30-21swapper/322:54:133
12846995340,7cyclictest41-21ksoftirqd/319:49:063
12846995340,7cyclictest41-21ksoftirqd/319:49:063
140962520,1sleep00-21swapper/019:19:070
12846995140,5cyclictest41-21ksoftirqd/322:49:073
12846995039,5cyclictest41-21ksoftirqd/320:34:073
1283299480,26cyclictest5825-21diskmemload23:15:430
12846994742,3cyclictest41-21ksoftirqd/323:18:553
12846994735,6cyclictest41-21ksoftirqd/319:38:593
261432460,1sleep20-21swapper/200:48:302
152291460,1ptp4l401ktimersoftd/323:29:483
152291460,1ptp4l401ktimersoftd/323:29:483
1283299461,30cyclictest10422-21ssh23:11:250
152291440,1ptp4l401ktimersoftd/321:39:373
152291440,1ptp4l401ktimersoftd/321:39:373
1283299430,2cyclictest0-21swapper/000:32:580
155662420,2sleep30-21swapper/323:17:463
152291420,1ptp4l401ktimersoftd/320:30:423
1284699428,8cyclictest41-21ksoftirqd/323:06:123
1283299422,33cyclictest14580-21apt-get00:34:080
1283299421,33cyclictest1825-21apt-get23:39:070
1283299412,32cyclictest4192-21apt-get22:29:130
1283299412,31cyclictest5197-21apt-get21:54:080
152291400,1ptp4l401ktimersoftd/321:04:033
12846994027,4cyclictest41-21ksoftirqd/322:28:503
1283299402,30cyclictest31433-21apt-get21:04:030
1283299401,25cyclictest11629-21irqstats21:24:110
12846993930,5cyclictest41-21ksoftirqd/323:34:083
12846993928,5cyclictest41-21ksoftirqd/319:18:593
12846993926,10cyclictest41-21ksoftirqd/320:59:093
1283299393,30cyclictest30551-21apt-get00:14:130
1283299392,30cyclictest24338-21apt-get20:49:010
1283299391,31cyclictest18523-21apt-get19:29:050
152291380,1ptp4l401ktimersoftd/322:06:263
152291380,1ptp4l401ktimersoftd/321:46:413
12846993833,3cyclictest41-21ksoftirqd/323:39:073
12846993813,4cyclictest41-21ksoftirqd/322:33:493
12832993815,20cyclictest31342-21sendmail_mailst23:34:190
12832993815,20cyclictest23406-21grep00:44:150
12832993813,22cyclictest22921-21cat22:13:500
1283299381,31cyclictest28593-21apt-get21:44:040
1283299381,31cyclictest2322-21apt-get00:19:100
1283299381,31cyclictest14869-21taskset20:29:050
1283299381,22cyclictest19642-21python23:59:230
1283299380,23cyclictest0-21swapper/023:18:580
152291370,1ptp4l401ktimersoftd/322:36:063
152291370,1ptp4l401ktimersoftd/320:49:443
152291370,0ptp4l401ktimersoftd/323:54:053
12846993732,2cyclictest39992irq/92-enp1s0-T00:18:533
12846993722,9cyclictest41-21ksoftirqd/300:03:523
1283299373,29cyclictest3110-21apt-get23:04:100
1283299372,27cyclictest2967-21apt-get20:04:010
12832993710,24cyclictest27750-21grep22:54:160
1283299370,3cyclictest26877-21phc2sys19:44:100
1283299370,2cyclictest0-21swapper/021:14:120
1283299370,2cyclictest0-21swapper/019:39:100
152291360,1ptp4l401ktimersoftd/323:27:033
152291360,1ptp4l401ktimersoftd/323:27:033
152291360,1ptp4l401ktimersoftd/321:36:193
152291360,1ptp4l401ktimersoftd/319:29:203
12846993630,3cyclictest41-21ksoftirqd/300:48:533
12846993630,3cyclictest41-21ksoftirqd/300:23:533
12846993626,3cyclictest41-21ksoftirqd/322:03:503
1284699360,3cyclictest121rcu_preempt20:04:073
1283299362,28cyclictest8668-21apt-get22:34:120
1283299362,28cyclictest23174-21apt-get22:14:070
1283299362,27cyclictest10087-21apt-get23:49:090
1283299361,29cyclictest16134-21apt-get19:24:040
1283299361,27cyclictest9661-21apt-get21:59:080
1283299360,3cyclictest5825-21diskmemload00:41:010
1283299360,2cyclictest0-21swapper/022:49:190
260482350,2sleep10-21swapper/123:29:161
260482350,2sleep10-21swapper/123:29:161
152291350,1ptp4l401ktimersoftd/323:13:103
152291350,1ptp4l401ktimersoftd/323:02:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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