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2025-11-25 - 21:54
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Tue Nov 25, 2025 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17103999130,12cyclictest0-21swapper/310:30:133
17103999130,11cyclictest0-21swapper/310:20:123
17103999130,11cyclictest0-21swapper/309:05:133
171039991210,1cyclictest0-21swapper/311:30:113
17103999120,11cyclictest0-21swapper/311:24:283
17103999120,11cyclictest0-21swapper/307:15:013
171039991110,0cyclictest0-21swapper/311:40:123
17103999110,10cyclictest69450irq/121-eno111:35:143
17103999110,10cyclictest69450irq/121-eno110:25:163
17103999110,10cyclictest0-21swapper/310:50:013
17103999110,10cyclictest0-21swapper/307:40:233
17103999110,0cyclictest0-21swapper/308:25:133
17103999110,0cyclictest0-21swapper/307:35:133
17103999109,1cyclictest69450irq/121-eno110:00:233
17103999109,0cyclictest0-21swapper/310:40:133
171039991010,0cyclictest69450irq/121-eno112:37:543
171039991010,0cyclictest69450irq/121-eno112:05:013
171039991010,0cyclictest69450irq/121-eno111:25:183
171039991010,0cyclictest69450irq/121-eno109:40:123
171039991010,0cyclictest0-21swapper/312:30:143
171039991010,0cyclictest0-21swapper/310:05:133
171039991010,0cyclictest0-21swapper/309:20:013
171039991010,0cyclictest0-21swapper/308:35:133
171039991010,0cyclictest0-21swapper/308:35:133
171039991010,0cyclictest0-21swapper/308:00:013
171039991010,0cyclictest0-21swapper/307:30:203
17103999100,9cyclictest69450irq/121-eno109:35:213
17103999100,9cyclictest0-21swapper/309:25:183
17103999100,9cyclictest0-21swapper/308:05:183
17103999100,10cyclictest0-21swapper/312:25:013
17103999100,0cyclictest0-21swapper/312:00:013
17103999100,0cyclictest0-21swapper/308:15:013
1710399999,0cyclictest69450irq/121-eno111:15:153
1710399999,0cyclictest69450irq/121-eno110:35:583
1710399999,0cyclictest0-21swapper/311:05:163
1710399999,0cyclictest0-21swapper/310:10:123
1710399999,0cyclictest0-21swapper/309:30:183
1710399999,0cyclictest0-21swapper/308:40:143
1710399990,8cyclictest69450irq/121-eno112:10:303
1710399990,8cyclictest69450irq/121-eno111:10:153
1710399990,8cyclictest69450irq/121-eno109:52:343
1710399990,0cyclictest0-21swapper/307:50:013
1710399988,0cyclictest69450irq/121-eno112:25:173
1710399988,0cyclictest69450irq/121-eno111:52:313
1710399988,0cyclictest69450irq/121-eno109:00:193
1710399988,0cyclictest69450irq/121-eno108:20:373
1710399988,0cyclictest0-21swapper/307:20:163
1710399987,1cyclictest69450irq/121-eno111:04:213
1710399987,1cyclictest69450irq/121-eno110:45:123
1710399987,1cyclictest69450irq/121-eno109:55:113
1710399987,0cyclictest0-21swapper/307:50:113
1710399980,8cyclictest0-21swapper/312:00:163
1710399980,7cyclictest69450irq/121-eno112:15:223
1710399980,7cyclictest69450irq/121-eno110:15:183
1710399980,7cyclictest69450irq/121-eno109:49:023
1710399980,7cyclictest69450irq/121-eno108:03:343
1710399977,0cyclictest69450irq/121-eno110:55:213
1710399977,0cyclictest69450irq/121-eno109:11:293
1710399977,0cyclictest0-21swapper/307:25:123
1710399976,1cyclictest69450irq/121-eno109:20:173
1710399976,1cyclictest69450irq/121-eno107:10:013
1710399970,7cyclictest69450irq/121-eno111:49:303
1710399970,6cyclictest69450irq/121-eno108:30:133
1710399966,0cyclictest69450irq/121-eno108:45:163
1710399966,0cyclictest69450irq/121-eno108:15:133
1710399955,0cyclictest69450irq/121-eno108:55:143
1710399955,0cyclictest69450irq/121-eno108:50:013
170278251,2sleep30-21swapper/307:05:223
169667251,2sleep20-21swapper/207:05:172
281020230,0sleep00-21swapper/011:35:200
262548230,2sleep1262685-21aten_r1power_vo10:55:151
230162230,2sleep2230166-21ssh09:35:352
209131230,2sleep0209357-21grep08:45:140
169325231,1sleep00-21swapper/007:05:150
169222231,1sleep10-21swapper/107:05:041
305458220,1sleep10-21swapper/112:35:131
298658220,1sleep2298672-21latency_hist12:20:012
290723220,1sleep0290993-21df_inode12:00:180
275754220,1sleep0276031-21df_inode11:25:160
273509220,1sleep20-21swapper/211:20:132
266663220,1sleep0266665-21ssh11:04:420
260450220,1sleep0260573-21tail10:50:130
259471220,1sleep20-21swapper/210:46:112
247702220,1sleep2247927-21grep10:20:132
230910220,1sleep0231005-21sh09:40:130
220746220,1sleep0221011-21df09:15:150
219973220,0sleep00-21swapper/009:11:110
217475220,0sleep0216681-21/usr/sbin/munin09:05:190
211703220,1sleep1211724-21/usr/sbin/munin08:50:271
210676220,1sleep00-21swapper/008:50:020
207097220,1sleep1207137-21aten_r1power_cu08:40:141
204915220,1sleep0204996-21grep08:35:010
201423220,1sleep2201617-21/usr/sbin/munin08:25:142
173993220,1sleep1174266-21df_inode07:15:171
305883210,0sleep00-21swapper/012:35:160
303738210,0sleep00-21swapper/012:30:160
303400210,0sleep20-21swapper/212:30:142
303371210,0sleep10-21swapper/112:30:131
302384210,0sleep00-21swapper/012:25:510
301214210,0sleep10-21swapper/112:25:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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