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2026-09-19 - 08:42
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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 792 highest latencies:
System rackeslot2.osadl.org (updated Sat Sep 19, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
172475721630,2sleep30-21swapper/321:04:303
17403632860,2sleep20-21swapper/221:14:432
20987102600,2sleep00-21swapper/000:39:220
20866542350,3sleep12086647-21munin-run00:30:001
20059452350,2sleep0241rcuc/023:46:500
18239622320,1sleep00-21swapper/022:04:240
16049382290,1sleep10-21swapper/119:39:221
156371499249,6cyclictest0-21swapper/022:44:210
156371499249,6cyclictest0-21swapper/022:44:210
1563714992414,6cyclictest1930003-21kthreadcore23:04:220
1563716992218,2cyclictest82050irq/121-eno122:54:181
1563714992219,2cyclictest24472-21rtkit-daemon19:53:240
1563714992216,1cyclictest2071256-21apt-get00:24:010
156371499218,7cyclictest0-21swapper/000:14:020
1563720992018,1cyclictest0-21swapper/221:42:332
1563716992016,2cyclictest82050irq/121-eno100:24:211
1563716992014,5cyclictest24617-21JS14:54:061
156371499207,7cyclictest0-21swapper/022:59:000
156371499200,14cyclictest0-21swapper/020:34:010
2213291190,2phc2sys0-21swapper/300:18:303
156371699197,4cyclictest0-21swapper/100:18:591
1563716991913,5cyclictest24815-21gsd-power23:48:461
1563716991912,3cyclictest1992603-21kthreadcore23:39:241
1563716991912,3cyclictest1890830-21latency_hist22:40:031
1563714991915,3cyclictest24614-21JS14:54:060
156371499190,3cyclictest2061475-21ssh00:17:050
2213291181,5phc2sys0-21swapper/322:14:023
1563716991815,2cyclictest24648-21gmain23:08:311
1563716991812,2cyclictest82050irq/121-eno100:34:221
1563716991811,5cyclictest1571221-21head19:15:031
1563716991811,3cyclictest1807202-21kthreadcore21:54:221
156371699180,3cyclictest1980487-21ssh23:33:591
156371499188,5cyclictest0-21swapper/023:05:060
156371499185,8cyclictest0-21swapper/022:24:040
156371499183,8cyclictest0-21swapper/023:39:010
1563714991815,2cyclictest1843463-21kthreadcore22:14:250
1563714991814,3cyclictest24617-21JS14:54:060
1563714991811,3cyclictest1543120-21kworker/u16:0-rpciod21:22:070
1563714991811,3cyclictest1543120-21kworker/u16:0-rpciod21:22:070
2213291171,2phc2sys0-21swapper/321:49:173
2213291170,4phc2sys0-21swapper/320:29:003
2213291170,2phc2sys0-21swapper/300:11:103
1563720991714,1cyclictest0-21swapper/223:19:212
1563720991714,1cyclictest0-21swapper/222:29:272
1563720991714,1cyclictest0-21swapper/222:29:272
1563720991714,1cyclictest0-21swapper/200:05:012
156371699173,8cyclictest1960867-21perf23:20:001
1563716991711,4cyclictest1643179-21wc20:09:181
1563714991712,4cyclictest677780-21systemd-journal19:30:010
1563714991710,3cyclictest1731814-21diskmemload22:08:220
156371499170,12cyclictest1803781-21ssh21:52:330
2213291161,5phc2sys0-21swapper/323:13:593
2213291160,4phc2sys0-21swapper/323:26:183
2213291160,2phc2sys0-21swapper/323:46:433
2213291160,2phc2sys0-21swapper/321:34:283
2213291160,2phc2sys0-21swapper/319:34:563
1563720991614,1cyclictest0-21swapper/221:34:242
1563720991613,1cyclictest0-21swapper/222:49:282
1563720991613,1cyclictest0-21swapper/221:39:232
1563720991613,1cyclictest0-21swapper/220:48:092
1563720991613,1cyclictest0-21swapper/220:35:012
1563720991613,1cyclictest0-21swapper/219:39:192
1563720991612,2cyclictest0-21swapper/223:24:292
156372099161,12cyclictest1676729-21chrt20:30:022
156372099160,9cyclictest0-21swapper/223:50:012
156371699169,6cyclictest677780-21systemd-journal22:00:001
156371699169,2cyclictest1930873-21kthreadcore23:04:241
156371699168,4cyclictest1894904-21kthreadcore22:44:211
156371699168,4cyclictest1894904-21kthreadcore22:44:211
156371699167,3cyclictest0-21swapper/122:19:101
156371699163,8cyclictest1925607-21awk23:00:001
1563716991614,1cyclictest1563708-21cyclictest21:22:451
1563716991614,1cyclictest1563708-21cyclictest21:22:451
1563716991613,2cyclictest24615-21JS14:54:061
1563716991613,2cyclictest2054795-21irqrtprio00:14:221
1563716991613,2cyclictest2041522-21runrttasks00:07:171
1563716991613,2cyclictest1837786-21/usr/sbin/munin22:10:031
1563716991613,2cyclictest1-21systemd23:45:011
1563716991612,3cyclictest672434-21in:imuxsock20:15:241
1563716991612,3cyclictest1801191-21kthreadcore21:49:241
1563716991612,3cyclictest1783628-21kthreadcore21:39:251
1563716991612,3cyclictest1744239-21kthreadcore21:19:221
1563716991612,3cyclictest1720427-21kthreadcore21:04:231
1563716991612,3cyclictest1611885-21kthreadcore19:44:311
1563716991612,3cyclictest1576747-21kthreadcore19:19:221
1563716991612,3cyclictest1415-21ntpd19:24:241
156371699160,4cyclictest1635233-21latency_hist20:00:011
156371499169,3cyclictest1731814-21diskmemload22:46:590
156371499169,3cyclictest1731814-21diskmemload22:28:420
156371499169,3cyclictest1731814-21diskmemload22:28:420
156371499168,7cyclictest0-21swapper/021:10:010
156371499166,6cyclictest0-21swapper/000:09:240
156371499166,5cyclictest2447398rtkit-daemon23:25:110
156371499165,6cyclictest0-21swapper/023:20:030
1563714991613,2cyclictest932-1atopacctd21:49:240
1563714991613,2cyclictest1966584-21kthreadcore23:24:230
1563714991613,2cyclictest1643506-21gltestperf20:09:200
1563714991613,2cyclictest1563708-21cyclictest20:19:230
156371499161,11cyclictest1811773-21ssh21:55:450
2213291150,2phc2sys0-21swapper/322:24:563
2213291150,2phc2sys0-21swapper/321:23:083
2213291150,2phc2sys0-21swapper/321:23:083
2213291150,2phc2sys0-21swapper/300:04:333
2213291150,1phc2sys0-21swapper/320:10:003
156372099159,4cyclictest1811861-21taskset21:55:562
1563720991513,1cyclictest0-21swapper/219:14:212
1563720991512,1cyclictest0-21swapper/223:04:292
1563720991512,1cyclictest0-21swapper/222:54:222
1563720991512,1cyclictest0-21swapper/222:39:322
1563720991512,1cyclictest0-21swapper/222:31:452
1563720991512,1cyclictest0-21swapper/221:49:192
1563720991512,1cyclictest0-21swapper/220:39:262
1563720991512,1cyclictest0-21swapper/220:24:222
1563720991512,1cyclictest0-21swapper/219:54:222
1563720991512,1cyclictest0-21swapper/219:43:592
1563720991512,1cyclictest0-21swapper/219:34:162
1563720991511,2cyclictest0-21swapper/221:04:242
1563720991511,2cyclictest0-21swapper/220:54:222
1563720991511,2cyclictest0-21swapper/220:09:292
1563720991511,2cyclictest0-21swapper/219:49:202
156371699158,3cyclictest2024552-21/usr/sbin/munin23:59:221
1563716991512,2cyclictest61901-21gmain21:30:301
1563716991512,2cyclictest1563708-21cyclictest21:44:191
1563716991511,3cyclictest2099846-21kthreadcore00:39:231
1563716991511,3cyclictest2017005-21irqrtprio23:54:221
1563716991511,3cyclictest1903773-21kthreadcore22:49:221
1563716991511,3cyclictest1880665-21head22:34:261
1563716991511,3cyclictest1866985-21gltestperf22:29:191
1563716991511,3cyclictest1866985-21gltestperf22:29:191
1563716991511,3cyclictest1858777-21irqrtprio22:24:211
1563716991511,3cyclictest1842854-21kthreadcore22:14:241
1563716991511,3cyclictest1822040-21aten_repower_cu22:04:021
1563716991511,3cyclictest1765764-21kthreadcore21:29:241
1563716991511,3cyclictest1730386-21kthreadcore21:09:231
1563716991511,3cyclictest1716247-21kthreadcore20:59:231
1563716991511,3cyclictest1695357-21kthreadcore20:44:251
1563716991511,3cyclictest1687381-21kthreadcore20:39:221
1563716991511,3cyclictest1681118-21kthreadcore20:34:271
1563716991511,3cyclictest1663612-21aten_repower_po20:24:091
1563716991511,3cyclictest1651910-21kthreadcore20:14:221
1563716991511,3cyclictest1640665-21kthreadcore20:04:241
1563716991511,3cyclictest1618218-21sort19:49:211
1563716991511,3cyclictest1595822-21kthreadcore19:34:241
1563716991511,3cyclictest1591148-21kthreadcore19:29:261
156371499159,6cyclictest171ktimers/023:42:140
156371499159,3cyclictest1731814-21diskmemload21:42:240
156371499159,3cyclictest1731814-21diskmemload21:25:590
156371499158,3cyclictest1731814-21diskmemload23:51:250
156371499156,5cyclictest0-21swapper/022:17:250
156371499155,5cyclictest0-21swapper/022:31:190
156371499155,5cyclictest0-21swapper/021:38:270
156371499155,5cyclictest0-21swapper/021:19:470
156371499154,6cyclictest0-21swapper/000:34:260
156371499152,1cyclictest491rcuog/221:33:450
1563714991512,2cyclictest2026041-21kernelversion23:59:210
1563714991512,2cyclictest1731814-21diskmemload22:53:160
1563714991512,2cyclictest1717513-21ptp4l20:59:260
1563714991512,2cyclictest1667079-21kthreadcore20:24:220
1563714991512,2cyclictest1634605-21pmu-power19:59:340
1563714991512,2cyclictest1609464-21irqrtprio19:44:290
1563714991512,2cyclictest1601977-21fschecks_count19:39:180
1563714991512,2cyclictest1574819-21irqcore19:19:200
2213291146,2phc2sys0-21swapper/322:32:503
2213291141,5phc2sys0-21swapper/320:14:003
2213291141,3phc2sys0-21swapper/320:49:003
2213291141,3phc2sys0-21swapper/320:23:273
2213291141,2phc2sys0-21swapper/322:58:083
2213291141,2phc2sys0-21swapper/322:50:423
2213291141,2phc2sys0-21swapper/322:19:203
2213291141,2phc2sys0-21swapper/319:39:103
2213291140,2phc2sys0-21swapper/323:39:483
2213291140,2phc2sys0-21swapper/322:48:343
2213291140,1phc2sys0-21swapper/321:44:533
156372099147,5cyclictest0-21swapper/222:14:022
1563720991412,1cyclictest0-21swapper/223:33:592
1563720991412,1cyclictest0-21swapper/220:19:222
1563720991412,1cyclictest0-21swapper/200:09:172
1563720991411,2cyclictest0-21swapper/220:59:232
1563720991411,1cyclictest0-21swapper/223:59:242
1563720991411,1cyclictest0-21swapper/223:53:222
1563720991411,1cyclictest0-21swapper/223:39:222
1563720991411,1cyclictest0-21swapper/223:11:092
1563720991411,1cyclictest0-21swapper/223:08:252
1563720991411,1cyclictest0-21swapper/222:41:572
1563720991411,1cyclictest0-21swapper/222:41:572
1563720991411,1cyclictest0-21swapper/222:24:232
1563720991411,1cyclictest0-21swapper/222:04:252
1563720991411,1cyclictest0-21swapper/221:29:172
1563720991411,1cyclictest0-21swapper/221:19:232
1563720991411,1cyclictest0-21swapper/221:09:232
1563720991411,1cyclictest0-21swapper/220:44:202
1563720991411,1cyclictest0-21swapper/220:14:232
1563720991411,1cyclictest0-21swapper/200:29:002
1563716991411,2cyclictest1705797-21ps20:54:221
1563716991411,2cyclictest1563708-21cyclictest20:50:011
1563716991410,3cyclictest2035585-21kthreadcore00:04:231
1563716991410,3cyclictest1964982-21kthreadcore23:24:221
1563716991410,3cyclictest1946477-21irqcore23:14:201
1563716991410,3cyclictest1626916-21kthreadcore19:54:241
156371499147,3cyclictest1731814-21diskmemload21:14:230
156371499141,8cyclictest1698666-21grep20:49:190
1563714991412,1cyclictest1872870-21kworker/u16:2-rpciod00:03:090
1563714991411,2cyclictest862-21gmain19:32:240
1563714991411,2cyclictest1872870-21kworker/u16:2-rpciod23:11:210
1563714991411,2cyclictest1704979-21aten_repower_fr20:54:080
1563714991411,2cyclictest1636003-21aten_repower_fr20:04:070
1563714991411,2cyclictest1583729-21kthreadcore19:24:240
1563714991411,2cyclictest1570293-21timerandwakeup19:14:280
1563714991410,3cyclictest1685224-21irqcore20:39:210
156371499140,8cyclictest1890753-21922:40:020
156371499140,3cyclictest1981881-21irqrtprio23:34:230
2213291131,6phc2sys0-21swapper/319:48:593
2213291131,4phc2sys0-21swapper/322:04:023
2213291131,2phc2sys0-21swapper/321:56:393
2213291130,2phc2sys0-21swapper/323:02:573
2213291130,2phc2sys0-21swapper/322:07:053
2213291130,2phc2sys0-21swapper/321:15:493
1563720991311,1cyclictest0-21swapper/223:41:422
1563720991311,1cyclictest0-21swapper/222:09:202
1563720991311,1cyclictest0-21swapper/221:54:222
1563720991311,1cyclictest0-21swapper/221:21:482
1563720991311,1cyclictest0-21swapper/221:21:482
1563720991311,1cyclictest0-21swapper/219:29:252
1563720991311,1cyclictest0-21swapper/219:24:182
1563720991311,1cyclictest0-21swapper/200:39:182
1563720991311,1cyclictest0-21swapper/200:34:262
1563720991311,1cyclictest0-21swapper/200:24:232
1563720991311,1cyclictest0-21swapper/200:14:252
1563720991310,1cyclictest0-21swapper/223:27:082
1563720991310,1cyclictest0-21swapper/222:19:202
1563720991310,1cyclictest0-21swapper/219:57:092
156372099130,1cyclictest0-21swapper/222:59:102
156371699139,3cyclictest1735922-21kthreadcore21:14:351
156371499139,3cyclictest1872870-21kworker/u16:2+nfsiod00:25:220
1563714991310,2cyclictest1723999-21kthreadcore21:04:250
1563714991310,2cyclictest1694164-21kthreadcore20:44:240
1563714991310,2cyclictest1616479-21kernelversion19:49:200
2213291121,3phc2sys0-21swapper/323:54:003
2213291121,1phc2sys0-21swapper/323:42:293
2213291120,2phc2sys0-21swapper/323:05:413
2213291120,2phc2sys0-21swapper/322:37:243
2213291120,2phc2sys0-21swapper/322:26:023
2213291120,2phc2sys0-21swapper/322:26:023
2213291120,2phc2sys0-21swapper/319:24:113
2213291120,2phc2sys0-21swapper/300:37:573
2213291120,1phc2sys0-21swapper/323:19:563
156372099129,1cyclictest0-21swapper/220:04:192
1563720991210,1cyclictest0-21swapper/200:19:002
156371699125,2cyclictest1563555-21latency_hist19:10:031
2213291112,2phc2sys0-21swapper/323:33:553
2213291111,2phc2sys0-21swapper/300:26:003
2213291110,5phc2sys0-21swapper/323:58:373
2213291110,3phc2sys0-21swapper/321:11:483
2213291110,2phc2sys0-21swapper/320:03:553
2213291110,2phc2sys0-21swapper/319:09:003
2213291110,2phc2sys0-21swapper/300:08:593
2213291110,1phc2sys0-21swapper/319:52:163
156372099119,1cyclictest0-21swapper/219:19:222
156371499115,2cyclictest17850irq/132-ahci[0000:00:17.0]19:10:020
2213291102,2phc2sys0-21swapper/300:33:533
2213291101,4phc2sys0-21swapper/319:59:003
2213291101,2phc2sys0-21swapper/323:23:053
2213291101,2phc2sys0-21swapper/320:33:213
2213291101,2phc2sys0-21swapper/319:29:243
2213291101,2phc2sys0-21swapper/300:21:473
2213291100,3phc2sys0-21swapper/319:14:003
2213291100,2phc2sys0-21swapper/321:37:543
2213291100,2phc2sys0-21swapper/321:25:073
2213291100,2phc2sys0-21swapper/321:05:593
2213291100,1phc2sys0-21swapper/322:43:163
2213291100,1phc2sys0-21swapper/322:43:163
156372099107,1cyclictest0-21swapper/219:10:022
221329191,2phc2sys0-21swapper/319:44:313
221329190,2phc2sys0-21swapper/321:52:063
221329190,2phc2sys0-21swapper/320:55:093
221329190,2phc2sys0-21swapper/320:54:013
221329190,2phc2sys0-21swapper/320:44:233
221329190,2phc2sys0-21swapper/320:39:303
221329190,2phc2sys0-21swapper/320:20:023
221329190,2phc2sys0-21swapper/319:16:303
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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