You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-02-08 - 04:06

x86 Intel Celeron M @1500 MHz, Linux 5.15.32-rt39 (Profile)

Latency plot of system in rack #6, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -n -a0 -t1 -p99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the alll highest latencies:
System rack6slot5.osadl.org (updated Wed Feb 08, 2023 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1944499102555187,5063cyclictest26456-21kworker/0:221:31:070
1944499102085360,4837cyclictest26456-21kworker/0:221:48:420
194449998505177,4661cyclictest28285-21kworker/0:100:23:070
194449998355153,4670cyclictest26456-21kworker/0:221:14:420
194449997765131,4634cyclictest12845-21kworker/0:222:48:590
194449996975111,4582cyclictest12845-21kworker/0:222:36:140
194449996515201,4447cyclictest32088-21kworker/0:219:12:400
194449992234669,4550cyclictest12845-21kworker/0:222:42:410
194449990114580,4420cyclictest27615-21kworker/0:020:19:300
194449989514533,4407cyclictest23444-21kworker/0:119:20:250
194449986054443,4147cyclictest27615-21kworker/0:019:46:550
194449985554339,4206cyclictest26456-21kworker/0:221:54:200
194449981644084,4033cyclictest26456-21kworker/0:221:02:330
194449981624343,3808cyclictest27615-21kworker/0:020:39:160
194449981454204,3890cyclictest7327-21kworker/0:122:22:260
194449979784269,3658cyclictest11904-21kworker/0:223:49:150
194449979313958,3931cyclictest27615-21kworker/0:020:12:560
194449978054102,3688cyclictest30999-21kworker/0:023:18:230
194449977564110,3603cyclictest30999-21kworker/0:023:36:480
194449976404106,3510cyclictest26456-21kworker/0:221:18:380
194449976054078,3513cyclictest26456-21kworker/0:221:07:310
194449975104083,3376cyclictest26456-21kworker/0:221:41:040
194449974894076,3362cyclictest27615-21kworker/0:019:58:430
194449974744011,3448cyclictest1078-21kworker/0:000:28:330
194449974073971,3425cyclictest26456-21kworker/0:221:25:380
194449973133935,3367cyclictest27615-21kworker/0:020:29:140
194449973123947,3350cyclictest11904-21kworker/0:200:01:550
194449972873909,3367cyclictest27438-21kworker/0:121:59:460
194449972273890,3326cyclictest12845-21kworker/0:222:55:140
194449971423844,3287cyclictest1078-21kworker/0:000:36:390
194449970933802,3286cyclictest32088-21kworker/0:219:16:320
194449970923823,3265cyclictest27615-21kworker/0:020:24:220
194449970153555,3417cyclictest27615-21kworker/0:019:36:010
194449969153717,3187cyclictest30999-21kworker/0:023:13:430
194449969013701,3188cyclictest12845-21kworker/0:223:01:210
194449968523698,3143cyclictest27615-21kworker/0:020:49:120
194449968483504,3292cyclictest26456-21kworker/0:221:24:130
194449968423697,3140cyclictest12845-21kworker/0:223:07:300
194449968243589,3230cyclictest27615-21kworker/0:020:09:560
194449968133681,3120cyclictest11904-21kworker/0:223:44:300
194449967353415,3305cyclictest921-21kworker/0:022:09:360
194449967313625,3095cyclictest28285-21kworker/0:100:16:110
194449967273621,3102cyclictest27615-21kworker/0:019:42:290
194449967113613,3087cyclictest11904-21kworker/0:223:57:080
194449967033580,3072cyclictest26456-21kworker/0:220:57:380
194449966863336,3336cyclictest26456-21kworker/0:220:52:410
194449966753595,3076cyclictest1078-21kworker/0:000:30:010
194449966713603,3016cyclictest28285-21kworker/0:100:14:450
194449966573605,3047cyclictest30999-21kworker/0:023:32:000
194449966493597,3041cyclictest27615-21kworker/0:019:51:030
194449965663541,3014cyclictest27615-21kworker/0:020:34:160
194449965263459,3052cyclictest27438-21kworker/0:122:03:540
194449964473543,2890cyclictest30999-21kworker/0:023:24:170
194449964113528,2860cyclictest23444-21kworker/0:119:26:400
194449963143389,2874cyclictest11904-21kworker/0:200:08:200
194449961923125,3053cyclictest27615-21kworker/0:020:03:150
194449961713361,2796cyclictest921-21kworker/0:022:15:510
194449960943312,2771cyclictest30999-21kworker/0:023:25:420
194449960503223,2812cyclictest27615-21kworker/0:019:31:170
194449960023185,2775cyclictest12845-21kworker/0:222:34:360
194449958763203,2669cyclictest921-21kworker/0:022:11:120
194449954262765,2650cyclictest11904-21kworker/0:223:50:440
194449953222734,2577cyclictest7327-21kworker/0:122:29:560
194449946752408,2263cyclictest26456-21kworker/0:221:36:480
194449937113521,176cyclictest12845-21kworker/0:222:53:460
194449936843600,34cyclictest27615-21kworker/0:020:42:300
192282580186,202sleep00-21swapper19:08:520
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional