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2025-12-23 - 09:54
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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
Characteristics of the highest latencies:
System rackdslot1.osadl.org (updated Tue Dec 23, 2025 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1565121600,3sleep01410499cyclictest20:20:260
134491610,4ptp4l0-21swapper/319:07:103
193062600,5sleep20-21swapper/222:49:592
1410799596,14cyclictest28156-21/usr/sbin/munin19:40:133
1410699571,18cyclictest22411-21/usr/sbin/munin00:05:152
134491570,4ptp4l0-21swapper/122:02:341
134491570,3ptp4l0-21swapper/120:44:361
134491570,3ptp4l0-21swapper/022:48:580
134491560,3ptp4l0-21swapper/121:24:431
134491560,3ptp4l0-21swapper/121:14:571
134491560,3ptp4l0-21swapper/119:25:271
134491550,5ptp4l1410599cyclictest21:30:131
134491550,3ptp4l0-21swapper/121:15:171
134491550,3ptp4l0-21swapper/020:48:390
1410699532,15cyclictest5126-21/usr/sbin/munin00:35:272
1410699532,14cyclictest24508-21meminfo19:30:212
134491530,4ptp4l0-21swapper/123:41:461
134491530,3ptp4l0-21swapper/100:03:571
134491530,3ptp4l0-21swapper/022:32:530
134491530,3ptp4l0-21swapper/022:32:530
134491520,4ptp4l0-21swapper/023:15:320
1410799515,11cyclictest21753-21seq00:03:473
1410799514,12cyclictest31244-21seq00:22:133
1410699512,12cyclictest32746-21/usr/sbin/munin19:50:222
1410599512,46cyclictest25919-21cron21:54:591
1410799505,11cyclictest532-21seq23:17:223
1410699502,7cyclictest28059-21meminfo00:15:222
134491500,3ptp4l0-21swapper/020:39:090
1410799495,12cyclictest32410-21seq20:59:383
1410799494,10cyclictest26118-21seq23:02:463
1410799494,10cyclictest20790-21taskset20:33:053
1410799493,13cyclictest27949-21ls21:55:273
1410799493,11cyclictest4947-21seq22:15:393
1410699491,17cyclictest22598-21ls21:45:222
1410699490,14cyclictest31402-21ls19:45:172
134491490,5ptp4l0-21swapper/219:08:332
1410799484,11cyclictest21296-21seq21:44:383
1410799484,11cyclictest11622-21runrttasks20:14:263
1410799484,10cyclictest28542-21seq23:09:203
1410799483,10cyclictest25386-21seq19:32:203
1410799483,10cyclictest18630-21seq20:29:503
1410799481,15cyclictest5572-21apt-get22:20:153
134491480,4ptp4l0-21swapper/123:34:301
134491480,4ptp4l0-21swapper/121:00:491
134491480,3ptp4l0-21swapper/119:32:451
1410799473,16cyclictest5050-21ls23:25:263
1410799473,11cyclictest4674-21runrttasks21:09:283
1410799472,10cyclictest0-21swapper/323:40:283
1410699472,7cyclictest13824-21users21:25:292
1410699472,15cyclictest8167-21df_inode22:25:162
1410699472,15cyclictest12834-21apt-get23:45:112
134491470,8ptp4l231rcuc/119:45:261
134491470,3ptp4l0-21swapper/122:16:341
1410799463,12cyclictest10225-21perl21:20:153
1410799461,16cyclictest1740-21irqstats22:10:183
1410699463,15cyclictest28562-21idleruntime20:50:182
1410699462,8cyclictest6875-21meminfo23:30:212
1410699462,8cyclictest10373-21iostat_ios21:20:172
1410699462,7cyclictest13040-21ntp_states20:15:222
1410699462,7cyclictest11832-21users22:30:282
1410699462,7cyclictest11832-21users22:30:282
1410699461,16cyclictest25536-21ls00:10:202
1410699460,12cyclictest705-21ls00:25:272
134491460,4ptp4l0-21swapper/120:12:241
134491460,3ptp4l0-21swapper/123:15:091
134491460,3ptp4l0-21swapper/122:42:511
1410799455,17cyclictest1311-21seq00:29:353
1410799453,10cyclictest30613-21runrttasks23:11:333
1410799453,10cyclictest23724-21runrttasks22:56:483
1410799452,7cyclictest6979-21netstat23:30:233
1410799452,7cyclictest14010-21ntp_states23:45:223
1410799452,7cyclictest12352-21hddtemp_smartct20:15:163
1410799452,10cyclictest11848-21taskset22:30:313
1410799452,10cyclictest11848-21taskset22:30:313
1410799450,17cyclictest30268-21ls22:00:293
1410699453,7cyclictest1846-21meminfo22:10:192
1410699452,7cyclictest9934-21diskstats20:10:162
1410699452,7cyclictest8765-21ls21:15:272
1410699452,7cyclictest3939-21diskstats23:25:142
1410699452,7cyclictest23813-21df_inode20:40:142
1410699452,7cyclictest21765-21iostat_ios20:35:172
1410699452,15cyclictest10526-21/usr/sbin/munin23:40:272
1410699451,14cyclictest8997-21users20:05:292
1410699451,14cyclictest29427-21apt-get00:20:132
1410699451,14cyclictest25678-21ls23:00:272
1410699450,16cyclictest32017-21ls22:05:212
134691450,13getstats0-21swapper/000:35:200
134491450,4ptp4l231rcuc/122:06:421
134491450,4ptp4l0-21swapper/022:50:260
134491450,3ptp4l0-21swapper/121:07:431
1410799442,8cyclictest489-21df_abs21:00:143
1410799442,7cyclictest8815-21memory22:25:233
1410799442,7cyclictest5097-21ntp_states00:35:283
1410799442,7cyclictest19914-21meminfo19:20:223
1410799442,7cyclictest17061-21diskstats21:35:143
1410799442,7cyclictest15419-21ntp_states20:20:233
1410799442,12cyclictest2238-21memory23:20:233
1410799441,7cyclictest3830-21ntp_states19:55:253
1410799441,7cyclictest24307-21hddtemp_smartct21:50:183
1410799441,6cyclictest26758-21memory20:45:213
1410699442,8cyclictest6148-21ntp_states20:00:242
1410699442,8cyclictest26809-21hddtemp_smartct21:55:162
1410699442,8cyclictest17870-21ntp_states21:35:222
1410699442,7cyclictest32261-21ntp_states23:15:252
1410699442,7cyclictest31515-21ntp_states20:55:232
1410699442,7cyclictest24993-21ntp_states21:50:252
1410699442,7cyclictest21686-21hddtemp_smartct19:25:152
1410699442,7cyclictest17075-21hddtemp_smartct19:15:152
1410699442,16cyclictest1736-21ls21:00:262
1410699442,14cyclictest29963-21ntp_states23:10:242
1410699442,13cyclictest14191-21users22:35:272
1410699441,7cyclictest17171-21iostat20:25:162
14104994428,10cyclictest9-21ksoftirqd/020:27:240
134491440,3ptp4l0-21swapper/119:38:011
134491440,3ptp4l0-21swapper/100:23:331
134491440,3ptp4l0-21swapper/100:17:561
134491440,3ptp4l0-21swapper/023:23:360
1410799435,17cyclictest21275-21runrttasks22:52:353
1410799433,16cyclictest15022-21iostat21:30:173
1410799432,7cyclictest22372-21ntp_states19:25:233
1410799432,7cyclictest14448-21diskstats19:10:143
1410799432,6cyclictest15762-21iostat_ios23:50:193
1410799432,13cyclictest6143-21ntp_states20:00:243
1410799431,7cyclictest31411-21meminfo19:45:193
1410799431,7cyclictest26972-21ntp_states19:35:243
1410799431,7cyclictest22531-21memory21:45:223
1410799431,7cyclictest17987-21python19:15:243
1410699433,6cyclictest0-21swapper/221:40:012
1410699432,7cyclictest3813-21iostat22:15:172
1410699432,7cyclictest3789-21ntp_states21:05:222
1410699432,7cyclictest29283-21ntp_states19:40:202
1410699432,7cyclictest27668-21ntp_states23:05:242
1410699432,6cyclictest2789-21ntp_states00:30:232
1410699432,6cyclictest16307-21ntp_states23:50:252
1410699432,6cyclictest15253-21ntp_states19:10:232
1410699432,15cyclictest19416-21/usr/sbin/munin22:50:172
1410699432,14cyclictest28688-21/usr/sbin/munin22:00:192
134491430,5ptp4l0-21swapper/019:45:100
1410799422,7cyclictest32113-21ntp_states22:05:233
1410799422,7cyclictest28532-21hddtemp_smartct20:50:193
1410799422,14cyclictest24629-21ntp_states20:40:243
1410799421,7cyclictest8214-21meminfo21:15:203
1410799421,7cyclictest7638-21diskstats20:05:173
1410799421,7cyclictest23221-21ntp_states00:05:233
1410799421,6cyclictest2795-21ntp_states00:30:253
1410799421,14cyclictest22037-21irqstats20:35:193
1410799421,14cyclictest12405-21diskstats21:25:153
1410699423,7cyclictest26696-21irqstats19:35:202
1410699422,7cyclictest9335-21ntp_states23:35:232
1410699422,6cyclictest23061-21ntp_states22:55:252
1410699421,7cyclictest3665-21meminfo19:55:222
1410699421,7cyclictest20118-21diskstats00:00:182
1410699421,7cyclictest19208-21diskstats20:30:142
1410699421,7cyclictest18441-21meminfo23:55:232
1410699421,6cyclictest15959-21ntp_states22:40:232
134491420,5ptp4l30372-21/usr/sbin/munin00:20:210
134491420,5ptp4l26986-21hddtemp_smartct23:05:180
134491420,5ptp4l16188-21apt-get19:15:030
134491420,5ptp4l0-21swapper/122:35:121
134491420,5ptp4l0-21swapper/122:25:151
134491420,5ptp4l0-21swapper/100:25:141
134491420,5ptp4l0-21swapper/022:25:190
134491420,5ptp4l0-21swapper/021:20:010
134491420,5ptp4l0-21swapper/020:00:140
134491420,4ptp4l5876-21df_inode22:20:170
134491420,4ptp4l30268-21ls23:10:270
134491420,4ptp4l28600-21hddtemp_smartct19:40:140
134491420,4ptp4l17141-21apt-get22:45:173
134491420,4ptp4l15258-21ntp_states19:10:230
134491420,4ptp4l13284-21ls19:05:270
134491420,4ptp4l12098-21apt-get21:25:131
134491420,4ptp4l0-21swapper/120:36:581
134491420,4ptp4l0-21swapper/021:00:120
134491420,4ptp4l0-21swapper/000:07:390
1410699412,15cyclictest18951-21/usr/sbin/munin19:20:272
1410699411,7cyclictest26926-21ntp_states20:45:222
1410699411,15cyclictest2446-21ntp_states23:20:242
1410699411,14cyclictest4954-21/usr/sbin/munin21:10:172
14104994135,4cyclictest9-21ksoftirqd/000:15:000
134491410,6ptp4l0-21swapper/123:25:131
134491410,5ptp4l8219-21apt23:35:123
134491410,5ptp4l32568-21irqstats00:25:200
134491410,5ptp4l27400-21irqstats23:05:211
134491410,5ptp4l24402-21irqstats19:30:190
134491410,5ptp4l0-21swapper/120:05:141
134491410,5ptp4l0-21swapper/023:35:120
134491410,5ptp4l0-21swapper/023:25:150
134491410,5ptp4l0-21swapper/022:13:090
134491410,5ptp4l0-21swapper/021:40:020
134491410,4ptp4l760-21apt-get23:20:031
134491410,4ptp4l5872-21irqstats20:00:201
134491410,4ptp4l32760-21apt-get19:50:131
134491410,4ptp4l17178-21hddtemp_smartct21:35:151
134491410,4ptp4l10540-21apt-get23:40:140
134491410,4ptp4l0-21swapper/122:10:121
134491410,4ptp4l0-21swapper/120:20:111
134491410,4ptp4l0-21swapper/119:10:121
134491410,4ptp4l0-21swapper/000:30:190
134491410,3ptp4l7266-21apt-get21:15:120
134491410,3ptp4l26383-21apt-get21:55:121
134491410,3ptp4l18104-21ls20:25:261
134491410,3ptp4l14842-21apt-get22:40:120
1410799403,11cyclictest17902-21fschecks_time23:55:183
1410799402,16cyclictest28058-21meminfo00:15:233
1410799401,14cyclictest5177-21df21:10:133
1410699401,7cyclictest14610-21df_inode20:20:142
134491400,5ptp4l24584-21/usr/sbin/munin00:10:163
134491400,5ptp4l1368-21/usr/sbin/munin19:50:210
134491400,5ptp4l0-21swapper/119:05:281
134491400,5ptp4l0-21swapper/023:30:240
134491400,5ptp4l0-21swapper/021:35:110
134491400,5ptp4l0-21swapper/020:50:190
134491400,5ptp4l0-21swapper/019:35:190
134491400,4ptp4l26229-21perl20:45:161
134491400,4ptp4l23772-21users00:05:281
134491400,4ptp4l22251-21diskstats22:55:171
134491400,4ptp4l18337-21irqstats23:55:211
134491400,4ptp4l0-21swapper/123:45:141
134491400,4ptp4l0-21swapper/123:10:141
134491400,4ptp4l0-21swapper/123:00:281
134491400,4ptp4l0-21swapper/120:55:211
134491400,4ptp4l0-21swapper/119:15:111
134491400,4ptp4l0-21swapper/000:04:240
134491400,3ptp4l7329-21apt-get20:05:130
134491400,3ptp4l5539-21iostat_ios21:10:170
134491400,3ptp4l11921-21apt-get20:15:110
134491400,3ptp4l111rcuc/022:56:070
134491400,3ptp4l0-21swapper/122:47:591
1410699392,13cyclictest14663-21df21:30:132
134491390,5ptp4l1301-21snmpd22:17:160
134491390,5ptp4l0-21swapper/120:30:191
134491390,5ptp4l0-21swapper/021:50:230
134491390,4ptp4l21682-21perl19:25:150
134491390,4ptp4l0-21swapper/123:50:281
134491390,4ptp4l0-21swapper/123:35:191
134491390,4ptp4l0-21swapper/122:50:221
134491390,4ptp4l0-21swapper/122:34:211
134491390,4ptp4l0-21swapper/122:34:211
134491390,4ptp4l0-21swapper/121:40:031
134491390,4ptp4l0-21swapper/120:50:141
134491390,4ptp4l0-21swapper/120:19:001
134491390,4ptp4l0-21swapper/119:56:501
134491390,4ptp4l0-21swapper/023:55:280
134491390,4ptp4l0-21swapper/023:50:030
134491390,4ptp4l0-21swapper/023:46:160
134491390,4ptp4l0-21swapper/023:00:260
134491390,4ptp4l0-21swapper/022:05:210
134491390,4ptp4l0-21swapper/022:00:110
134491390,4ptp4l0-21swapper/021:55:240
134491390,4ptp4l0-21swapper/021:45:210
134491390,4ptp4l0-21swapper/021:25:530
134491390,4ptp4l0-21swapper/020:44:150
134491390,4ptp4l0-21swapper/020:30:140
134491390,4ptp4l0-21swapper/019:55:470
134491390,4ptp4l0-21swapper/019:20:150
134491390,4ptp4l0-21swapper/000:15:280
134491390,3ptp4l21582-21apt-get21:45:121
134491390,3ptp4l1618-21apt-get00:30:131
134491390,3ptp4l0-21swapper/022:35:270
134491380,5ptp4l0-21swapper/020:10:130
134491380,4ptp4l30592-21tr20:55:140
134491380,4ptp4l0-21swapper/322:40:113
134491380,4ptp4l0-21swapper/322:38:163
134491380,4ptp4l0-21swapper/100:36:421
134491380,4ptp4l0-21swapper/021:30:500
134491380,4ptp4l0-21swapper/021:05:030
134491380,3ptp4l6915-21python22:20:291
134491380,3ptp4l19176-21df19:20:151
134491380,3ptp4l0-21swapper/319:50:233
134491380,3ptp4l0-21swapper/119:40:161
134491380,3ptp4l0-21swapper/100:11:061
134491370,3ptp4l0-21swapper/222:24:082
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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