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2026-07-25 - 01:36
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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 rack1slot1.osadl.org (updated Sat Jul 25, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
894924210,5sleep10-21swapper/119:05:241
82562206149,43sleep00-21swapper/019:05:030
101382204164,26sleep30-21swapper/319:06:553
103312201160,26sleep20-21swapper/219:09:272
308352620,0sleep30-21swapper/319:50:133
1045399160,16cyclictest0-21swapper/023:25:100
311272150,0sleep20-21swapper/221:00:012
10460991513,1cyclictest19252-21hddtemp_smartct19:25:162
53242140,1sleep21046099cyclictest21:10:212
10460991413,1cyclictest3314-21diskmemload21:45:112
10460991413,1cyclictest0-21swapper/223:50:142
10460991413,1cyclictest0-21swapper/222:51:082
10460991413,1cyclictest0-21swapper/221:19:292
10460991412,1cyclictest11741-21taskset00:23:082
1046099140,13cyclictest0-21swapper/220:45:172
1045399140,13cyclictest0-21swapper/023:05:140
10460991312,1cyclictest0-21swapper/223:57:022
10460991312,1cyclictest0-21swapper/223:57:022
10460991312,1cyclictest0-21swapper/222:35:202
10460991312,1cyclictest0-21swapper/222:13:572
10460991312,1cyclictest0-21swapper/200:40:002
10460991311,1cyclictest0-21swapper/223:15:122
10460991311,1cyclictest0-21swapper/223:01:282
10467991212,0cyclictest35-21ksoftirqd/322:40:003
10460991211,1cyclictest0-21swapper/223:40:152
10460991211,1cyclictest0-21swapper/223:34:572
10460991211,1cyclictest0-21swapper/223:22:332
10460991211,1cyclictest0-21swapper/222:18:252
10460991211,1cyclictest0-21swapper/221:34:382
10460991211,1cyclictest0-21swapper/221:24:012
10460991211,1cyclictest0-21swapper/220:50:182
10460991211,1cyclictest0-21swapper/220:40:172
10460991211,1cyclictest0-21swapper/219:45:202
10460991211,1cyclictest0-21swapper/219:15:172
10460991211,1cyclictest0-21swapper/200:12:182
10460991210,1cyclictest8300-21basename20:10:152
10460991210,1cyclictest1521-21expr21:05:112
10460991210,1cyclictest0-21swapper/223:10:402
1045399123,4cyclictest27725-21perf22:30:010
10453991210,1cyclictest9-21ksoftirqd/021:10:000
1046799119,1cyclictest35-21ksoftirqd/319:45:003
10467991111,0cyclictest35-21ksoftirqd/323:15:133
10467991110,1cyclictest35-21ksoftirqd/319:20:013
1046099119,1cyclictest0-21swapper/200:34:202
1046099118,3cyclictest0-21swapper/221:50:172
1046099117,3cyclictest0-21swapper/222:25:112
1046099116,4cyclictest0-21swapper/200:01:262
1046099112,3cyclictest0-21swapper/220:35:122
10460991110,1cyclictest3314-21diskmemload22:41:362
10460991110,1cyclictest3314-21diskmemload21:56:132
10460991110,1cyclictest3314-21diskmemload00:18:502
10460991110,1cyclictest17723-21strings23:45:162
10460991110,1cyclictest0-21swapper/223:37:332
10460991110,1cyclictest0-21swapper/222:59:332
10460991110,1cyclictest0-21swapper/222:49:582
10460991110,1cyclictest0-21swapper/222:24:002
10460991110,1cyclictest0-21swapper/221:40:122
10460991110,1cyclictest0-21swapper/221:37:132
10460991110,1cyclictest0-21swapper/221:28:232
10460991110,1cyclictest0-21swapper/200:27:392
1045399119,1cyclictest9-21ksoftirqd/022:50:010
1046799109,1cyclictest35-21ksoftirqd/323:45:013
1046799109,1cyclictest35-21ksoftirqd/322:05:003
1046799108,1cyclictest35-21ksoftirqd/321:35:003
10467991010,0cyclictest35-21ksoftirqd/323:50:003
10467991010,0cyclictest35-21ksoftirqd/322:25:003
1046799100,9cyclictest561-21nscd00:25:283
1046099109,1cyclictest0-21swapper/222:05:202
1046099109,1cyclictest0-21swapper/222:01:192
1046099109,1cyclictest0-21swapper/220:30:122
1046099109,1cyclictest0-21swapper/220:15:302
1046099109,1cyclictest0-21swapper/200:05:442
1046099106,3cyclictest0-21swapper/223:26:232
1046099104,4cyclictest16779-21fschecks_time19:20:122
1045399107,1cyclictest9-21ksoftirqd/021:05:010
1045399102,4cyclictest19049-21latency_hist20:35:000
4608290,1sleep10-21swapper/100:13:381
104679999,0cyclictest35-21ksoftirqd/321:15:123
104679999,0cyclictest35-21ksoftirqd/320:50:003
104679999,0cyclictest35-21ksoftirqd/319:35:013
104679998,1cyclictest35-21ksoftirqd/322:50:153
104679998,1cyclictest35-21ksoftirqd/320:35:003
104679998,1cyclictest35-21ksoftirqd/320:30:003
104679998,1cyclictest35-21ksoftirqd/300:10:013
104679997,1cyclictest35-21ksoftirqd/300:15:123
104679990,0cyclictest0-21swapper/323:28:483
104609998,1cyclictest0-21swapper/223:05:292
104609998,1cyclictest0-21swapper/222:30:392
104609991,7cyclictest0-21swapper/219:55:182
104609990,1cyclictest0-21swapper/220:04:542
104539997,1cyclictest12819-21munin-node19:15:000
104539996,1cyclictest9-21ksoftirqd/020:54:590
104539993,5cyclictest2755-21irqstats00:10:160
104539990,9cyclictest0-21swapper/022:59:560
8680280,0sleep00-21swapper/022:47:130
104679988,0cyclictest35-21ksoftirqd/322:55:153
104679987,1cyclictest35-21ksoftirqd/322:15:003
104679987,1cyclictest35-21ksoftirqd/322:10:003
104679987,1cyclictest35-21ksoftirqd/321:25:003
104679987,1cyclictest35-21ksoftirqd/319:30:003
104679987,0cyclictest35-21ksoftirqd/321:40:003
104679986,1cyclictest11301-21snmpd23:02:263
104679981,1cyclictest0-21swapper/323:35:003
104679980,7cyclictest2737-21apt-get20:00:113
104609985,2cyclictest30432-21apt-get19:50:112
104609985,2cyclictest23659-21diskstats19:35:132
104609985,2cyclictest14850-21grep20:25:112
104609984,3cyclictest30800-21latency_hist21:00:002
104609983,1cyclictest0-21swapper/219:30:142
104559980,5cyclictest0-21swapper/120:00:111
104559980,2cyclictest0-21swapper/121:20:111
104539987,1cyclictest20130-21ssh22:18:270
104539986,1cyclictest9-21ksoftirqd/021:16:280
104539986,1cyclictest9-21ksoftirqd/020:00:000
104539986,1cyclictest11301-21snmpd20:56:340
104539986,1cyclictest11301-21snmpd20:16:210
104539986,1cyclictest11301-21snmpd20:07:530
104539986,1cyclictest11301-21snmpd19:32:100
104539986,1cyclictest11301-21snmpd00:35:530
104539986,1cyclictest11301-21snmpd00:16:460
104539983,4cyclictest0-21swapper/021:50:150
104539980,1cyclictest3314-21diskmemload23:42:150
104539980,1cyclictest18384-21users23:45:200
104679976,1cyclictest29069-21ssh00:00:373
104679976,1cyclictest11301-21snmpd22:45:573
104679975,1cyclictest11301-21snmpd21:00:073
104679975,1cyclictest11301-21snmpd19:39:383
104679975,1cyclictest11301-21snmpd19:12:193
104679972,2cyclictest3314-21diskmemload21:47:043
104679971,5cyclictest574-21kworker/u8:123:59:383
104679971,5cyclictest574-21kworker/u8:123:59:373
104679971,2cyclictest12187-21apt-get20:20:113
104679970,5cyclictest0-21swapper/323:20:153
104679970,5cyclictest0-21swapper/321:50:133
104679970,3cyclictest17378-21apt22:15:113
104679970,3cyclictest0-21swapper/300:32:013
104679970,1cyclictest0-21swapper/321:25:183
104609974,2cyclictest5720-21tune2fs20:05:132
104609974,2cyclictest25548-21aten2.4-expect19:40:102
104609974,2cyclictest12271-21hostname20:20:112
104609974,2cyclictest10701-21basename19:10:132
104539976,1cyclictest9-21ksoftirqd/020:36:070
104539976,1cyclictest9-21ksoftirqd/019:20:270
104539976,1cyclictest22077-1kworker/u9:000:03:250
104539976,1cyclictest16489-1kworker/u9:023:02:340
104539976,1cyclictest11301-21snmpd22:14:200
104539975,1cyclictest6996-21awk23:30:180
104539975,1cyclictest31321-21cat19:50:150
104539975,1cyclictest29343-21ntpq22:30:170
104539975,1cyclictest26031-21diskstats19:40:120
104539975,1cyclictest14070-21sh21:25:000
104539975,1cyclictest11301-21snmpd00:06:460
104539974,1cyclictest548-21systemd-logind21:12:080
104539974,1cyclictest294-21systemd-udevd19:17:080
104539973,2cyclictest240-21systemd-journal20:14:550
104539973,0cyclictest0-21swapper/000:25:130
104539972,3cyclictest25275-21apt19:40:000
104539971,3cyclictest28389-21perf21:45:000
104539970,6cyclictest4287-21switchtime22:40:220
104539970,6cyclictest3314-21diskmemload23:10:060
104539970,6cyclictest3314-21diskmemload21:25:150
104539970,6cyclictest22526-21ssh23:52:200
104539970,6cyclictest21859-21ssh21:35:130
104539970,6cyclictest17499-21ssh00:30:200
104539970,6cyclictest0-21swapper/022:20:120
104539970,6cyclictest0-21swapper/022:05:120
104539970,6cyclictest0-21swapper/019:45:190
104539970,3cyclictest9095-21apt-get00:20:120
104539970,1cyclictest437-21grep23:20:200
104539970,1cyclictest3314-21diskmemload22:01:310
104539970,1cyclictest16236-1kworker/u9:121:30:190
104539970,1cyclictest1452-21ssh22:36:420
104539970,1cyclictest0-21swapper/021:46:300
15659260,0sleep10-21swapper/100:29:271
104679966,0cyclictest35-21ksoftirqd/321:00:003
104679966,0cyclictest35-21ksoftirqd/320:10:003
104679965,1cyclictest35-21ksoftirqd/323:10:003
104679965,1cyclictest35-21ksoftirqd/320:15:003
104679965,1cyclictest3318-21grep21:10:003
104679965,1cyclictest30140-21ssh22:31:003
104679965,1cyclictest26400-21ssh23:11:523
104679965,1cyclictest1919-21sed19:55:203
104679965,1cyclictest11301-21snmpd23:39:213
104679964,1cyclictest9058-21ssh00:20:073
104679963,3cyclictest6539-21awk22:00:013
104679963,1cyclictest240-21systemd-journal19:25:003
104679962,2cyclictest3314-21diskmemload21:11:343
104679961,3cyclictest26332-21apt-get20:50:123
104679961,3cyclictest0-21swapper/322:29:253
104679961,1cyclictest0-21swapper/300:11:283
104679961,0cyclictest3314-21diskmemload00:35:123
104679960,3cyclictest20643-21diskstats23:50:123
104679960,3cyclictest0-21swapper/322:40:133
104679960,2cyclictest0-21swapper/321:40:113
104679960,1cyclictest0-21swapper/320:40:103
104559966,0cyclictest0-21swapper/100:24:201
104559965,1cyclictest0-21swapper/120:55:191
104559960,6cyclictest0-21swapper/123:42:511
104559960,6cyclictest0-21swapper/123:21:271
104559960,6cyclictest0-21swapper/121:57:191
104559960,4cyclictest0-21swapper/123:54:281
104559960,4cyclictest0-21swapper/122:45:141
104559960,3cyclictest0-21swapper/123:26:261
104559960,3cyclictest0-21swapper/122:30:171
104559960,2cyclictest0-21swapper/123:59:171
104559960,2cyclictest0-21swapper/123:59:171
104559960,2cyclictest0-21swapper/100:30:161
104559960,1cyclictest0-21swapper/121:49:241
104559960,1cyclictest0-21swapper/120:40:101
104539965,1cyclictest24865-21cat20:45:150
104539965,1cyclictest1747-21ntpd20:20:580
104539965,1cyclictest11301-21snmpd20:26:180
104539963,2cyclictest3262-21/usr/sbin/munin21:55:160
104539963,2cyclictest29319-21unixbench-2d23:15:200
104539960,6cyclictest0-21swapper/023:55:010
104539960,6cyclictest0-21swapper/023:55:010
104539960,6cyclictest0-21swapper/020:00:230
104539960,5cyclictest3314-21diskmemload23:35:100
104679954,1cyclictest11301-21snmpd20:30:033
104679954,1cyclictest11301-21snmpd20:16:483
104679951,3cyclictest0-21swapper/319:45:013
104559955,0cyclictest0-21swapper/123:04:511
104559955,0cyclictest0-21swapper/121:14:461
104559955,0cyclictest0-21swapper/120:10:591
104559955,0cyclictest0-21swapper/119:10:481
104559951,2cyclictest0-21swapper/123:10:161
104559951,1cyclictest0-21swapper/122:50:191
104559951,1cyclictest0-21swapper/122:25:461
104559951,1cyclictest0-21swapper/100:05:231
104559950,5cyclictest0-21swapper/121:09:291
104559950,5cyclictest0-21swapper/120:37:081
104559950,5cyclictest0-21swapper/120:16:311
104559950,5cyclictest0-21swapper/119:23:181
104559950,3cyclictest0-21swapper/123:30:141
104559950,3cyclictest0-21swapper/122:10:371
104559950,3cyclictest0-21swapper/121:31:021
104559950,3cyclictest0-21swapper/121:26:071
104559950,2cyclictest0-21swapper/100:15:461
104559950,2cyclictest0-21swapper/100:01:031
104559950,1cyclictest0-21swapper/122:40:121
104559950,0cyclictest0-21swapper/123:45:411
104559950,0cyclictest0-21swapper/123:09:511
104559950,0cyclictest0-21swapper/120:32:301
104539953,1cyclictest21923-21cpuspeed_turbos20:40:110
104539950,4cyclictest18441-21/usr/sbin/munin19:25:190
104559944,0cyclictest0-21swapper/120:52:211
104559944,0cyclictest0-21swapper/120:47:041
104559944,0cyclictest0-21swapper/120:06:051
104559944,0cyclictest0-21swapper/119:33:441
104559943,1cyclictest324622sleep119:54:041
104559943,1cyclictest274552sleep119:42:461
104559941,2cyclictest0-21swapper/123:36:141
104559941,1cyclictest0-21swapper/119:59:541
104559940,3cyclictest0-21swapper/123:15:501
104559940,3cyclictest0-21swapper/122:35:431
104559940,3cyclictest0-21swapper/122:05:481
104559940,2cyclictest0-21swapper/122:04:101
104559940,2cyclictest0-21swapper/121:36:281
104559940,2cyclictest0-21swapper/121:15:121
104559940,2cyclictest0-21swapper/120:20:101
104559940,2cyclictest0-21swapper/119:30:001
104559940,1cyclictest0-21swapper/122:24:031
104559940,1cyclictest0-21swapper/122:15:111
104559940,1cyclictest0-21swapper/121:52:481
104559940,1cyclictest0-21swapper/119:45:111
104559940,0cyclictest0-21swapper/122:56:251
104559930,1cyclictest0-21swapper/121:40:011
104559930,1cyclictest0-21swapper/121:00:001
104559930,1cyclictest0-21swapper/120:25:001
104559930,1cyclictest0-21swapper/119:35:001
104559930,1cyclictest0-21swapper/119:15:001
104559930,1cyclictest0-21swapper/100:35:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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