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2026-01-23 - 09:23
[ 290.152] (II) VESA: driver for VESA chipsets: vesa >
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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
Characteristics of the 100 highest latencies:
System rackdslot1.osadl.org (updated Fri Jan 23, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2997999612,16cyclictest11621-21cat19:40:012
134491610,4ptp4l0-21swapper/223:51:442
2997999608,7cyclictest16561-21grep22:05:312
2997999607,51cyclictest0-21swapper/222:15:292
134491600,4ptp4l0-21swapper/022:30:340
134491600,3ptp4l0-21swapper/120:35:311
134491600,3ptp4l0-21swapper/019:55:220
134491580,4ptp4l0-21swapper/320:35:183
134491580,3ptp4l0-21swapper/220:50:202
134491580,3ptp4l0-21swapper/119:42:351
134491580,2ptp4l0-21swapper/221:40:372
2997999578,7cyclictest0-21swapper/222:00:242
134491570,3ptp4l0-21swapper/200:05:202
2997999568,6cyclictest0-21swapper/222:30:262
2997999567,6cyclictest0-21swapper/219:10:212
134491560,5ptp4l0-21swapper/019:05:060
134491560,3ptp4l0-21swapper/200:15:152
2997999557,6cyclictest0-21swapper/223:05:242
29979995549,4cyclictest28867-21df_abs21:25:172
134491550,4ptp4l0-21swapper/121:30:041
134491550,13ptp4l0-21swapper/119:56:521
2997999546,6cyclictest31298-21date23:50:002
2997999546,6cyclictest0-21swapper/222:50:182
2997999546,6cyclictest0-21swapper/222:50:182
2997999533,6cyclictest22171-21egrep23:30:112
19362530,4sleep12997899cyclictest23:55:181
134491530,4ptp4l0-21swapper/321:09:553
134491530,4ptp4l0-21swapper/200:28:422
134491530,3ptp4l0-21swapper/321:59:403
47782520,1sleep24781-21cpuspeed_turbos19:25:132
134491520,4ptp4l2997899cyclictest20:47:331
134491520,4ptp4l0-21swapper/323:08:033
134491520,4ptp4l0-21swapper/321:02:223
134491520,4ptp4l0-21swapper/320:32:583
134491520,4ptp4l0-21swapper/300:35:233
134491520,3ptp4l0-21swapper/323:25:183
134491520,3ptp4l0-21swapper/322:15:403
2997999517,6cyclictest0-21swapper/220:25:272
2997999512,24cyclictest0-21swapper/222:24:152
134491510,4ptp4l0-21swapper/323:14:483
2997999503,7cyclictest0-21swapper/200:00:152
2997999503,45cyclictest0-21swapper/200:35:292
2997999502,6cyclictest33-21ksoftirqd/219:20:152
2997999502,5cyclictest0-21swapper/222:40:212
134491500,4ptp4l0-21swapper/320:52:443
134491500,4ptp4l0-21swapper/123:30:271
2997999498,6cyclictest0-21swapper/221:45:272
2997999498,6cyclictest0-21swapper/221:45:272
2997999497,6cyclictest0-21swapper/222:55:122
2997999497,11cyclictest0-21swapper/221:35:172
2997999494,6cyclictest0-21swapper/220:35:202
137891491,26phc2sys9-21ksoftirqd/023:26:360
134491490,4ptp4l0-21swapper/323:32:003
134491490,4ptp4l0-21swapper/321:45:143
134491490,4ptp4l0-21swapper/321:45:143
134491490,4ptp4l0-21swapper/320:24:483
2997999487,6cyclictest0-21swapper/219:50:192
2997999485,6cyclictest0-21swapper/219:30:132
2997999482,6cyclictest0-21swapper/220:30:162
2997999481,16cyclictest30519-21grep20:20:172
134491480,8ptp4l0-21swapper/321:51:523
134491480,4ptp4l0-21swapper/100:02:211
134491480,3ptp4l0-21swapper/322:28:563
134491480,13ptp4l11824-21vmstat21:55:302
2997999476,7cyclictest0-21swapper/223:55:172
2997999476,6cyclictest0-21swapper/223:20:262
2997999476,6cyclictest0-21swapper/220:10:322
2997999475,11cyclictest29877-21taskset20:16:122
2997999472,7cyclictest9504-21users20:40:312
134491470,4ptp4l121rcu_preempt22:55:103
134491470,4ptp4l101ktimersoftd/020:35:280
134491470,4ptp4l0-21swapper/320:07:093
134491470,4ptp4l0-21swapper/319:46:113
134491470,4ptp4l0-21swapper/319:46:113
134491470,4ptp4l0-21swapper/200:22:002
134491470,3ptp4l0-21swapper/322:00:213
134491470,3ptp4l0-21swapper/321:13:473
134491470,10ptp4l9-21ksoftirqd/021:45:170
134491470,10ptp4l9-21ksoftirqd/021:45:170
2997999466,6cyclictest0-21swapper/219:17:062
2997999466,5cyclictest0-21swapper/223:35:172
2997999465,6cyclictest0-21swapper/223:00:202
134491460,9ptp4l0-21swapper/021:41:370
134491460,4ptp4l0-21swapper/300:34:013
134491460,2ptp4l0-21swapper/021:34:500
134491460,11ptp4l0-21swapper/121:40:211
2997999457,6cyclictest0-21swapper/221:30:272
2997999457,6cyclictest0-21swapper/220:07:172
2997999457,11cyclictest0-21swapper/220:00:252
134491450,9ptp4l0-21swapper/020:49:060
134491450,6ptp4l0-21swapper/200:30:042
134491450,3ptp4l121rcu_preempt00:16:201
134491450,3ptp4l0-21swapper/021:05:370
2997999444,5cyclictest0-21swapper/221:00:192
134491440,9ptp4l0-21swapper/022:56:130
134491440,7ptp4l0-21swapper/000:00:160
134491440,6ptp4l0-21swapper/121:05:121
134491440,5ptp4l0-21swapper/019:35:120
134491440,4ptp4l0-21swapper/300:14:003
134491440,4ptp4l0-21swapper/222:46:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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