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2025-12-21 - 14:07
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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 all highest latencies:
System rackeslot2.osadl.org (updated Sun Dec 21, 2025 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
131310221180,1sleep10-21swapper/120:28:321
15881472400,0sleep11588151-21tr00:13:341
13239382350,1sleep10-21swapper/120:33:371
1219575992814,12cyclictest171ktimers/019:30:010
1219575992511,10cyclictest1326-21systemd-logind19:25:020
1219577992317,2cyclictest134050irq/121-eno122:05:001
1219575992317,5cyclictest1324691-21perf20:35:000
121957599220,3cyclictest1544405-21irqrtprio23:38:350
121957599220,3cyclictest1538284-21irqcore23:33:320
1219577992118,2cyclictest1355328-21systemd21:00:011
1219577992117,2cyclictest1288-1atopacctd22:20:021
1219575992118,2cyclictest1318536-21apt-key20:30:010
1219575992116,4cyclictest1288-1atopacctd21:05:010
121957599210,4cyclictest191rcu_preempt23:53:310
1219577992017,2cyclictest1512479-21cron23:10:001
1219577992017,2cyclictest0-21swapper/100:00:011
121957599201,9cyclictest191rcu_preempt19:40:010
1219575992016,3cyclictest1427766-21sendmail22:00:010
1219575992014,5cyclictest1572902-21cron00:00:000
121957599200,1cyclictest0-21swapper/022:55:010
1219580991911,4cyclictest0-21swapper/219:30:012
1219577991916,2cyclictest1326-21systemd-logind00:05:011
121957599196,7cyclictest1393130-21cat21:33:330
121957599195,4cyclictest191rcu_preempt22:38:290
121957599195,4cyclictest191rcu_preempt20:08:290
1219575991914,4cyclictest1219569-21cyclictest22:20:010
121957599191,14cyclictest1621342-21munin-run00:40:010
121957599190,4cyclictest1246402-21/usr/sbin/munin19:33:290
1219580991815,1cyclictest0-21swapper/219:33:292
1219577991815,2cyclictest1385668-21wc21:25:001
121957599186,7cyclictest0-21swapper/021:53:340
121957599184,4cyclictest191rcu_preempt21:13:270
121957599183,5cyclictest1382139-21tr21:23:340
1219575991813,4cyclictest257-21systemd-journal23:47:240
1219575991813,4cyclictest1463980-21dump-pmu-power22:34:550
2649091170,2phc2sys0-21swapper/300:10:243
1219577991714,2cyclictest257-21systemd-journal20:50:001
121957599179,4cyclictest501rcuop/222:48:270
121957599179,3cyclictest601rcuop/323:12:120
121957599179,3cyclictest601rcuop/322:57:140
121957599179,3cyclictest601rcuop/322:57:140
121957599179,3cyclictest601rcuop/321:27:570
121957599179,3cyclictest601rcuop/320:24:140
121957599178,3cyclictest601rcuop/322:29:040
121957599175,8cyclictest0-21swapper/022:08:300
121957599174,8cyclictest1603531-21sshd00:26:250
121957599174,8cyclictest1530630-21latency_hist23:25:010
121957599174,3cyclictest0-21swapper/019:15:020
121957599172,9cyclictest1270586-21aten2.4-expect19:53:280
121957599172,9cyclictest1270586-21aten2.4-expect19:53:280
1219575991712,4cyclictest1219569-21cyclictest20:47:070
1219575991711,5cyclictest1337217-21apt-key20:45:000
1219575991711,5cyclictest1288-1atopacctd20:03:340
121957599171,13cyclictest1367557-21munin-run21:10:010
121957599170,7cyclictest1411487-21sed21:48:320
2649091161,2phc2sys0-21swapper/320:58:423
121958099167,4cyclictest0-21swapper/221:00:012
1219580991614,1cyclictest0-21swapper/220:35:002
1219580991613,1cyclictest0-21swapper/223:53:312
1219580991613,1cyclictest0-21swapper/221:05:012
1219580991611,2cyclictest0-21swapper/221:54:382
1219577991613,2cyclictest1615292-21systemctl00:35:011
1219577991613,2cyclictest1548725-21ls23:40:001
1219577991613,2cyclictest1476149-21systemd-run22:40:011
1219577991613,2cyclictest1327-21in:imuxsock20:55:021
1219577991613,2cyclictest1253182-21gltestperf19:38:321
1219577991613,2cyclictest1234019-21cut19:20:011
1219577991612,3cyclictest1286-21avahi-daemon23:45:001
121957799160,10cyclictest1331518-21apt-get20:43:261
121957599169,4cyclictest601rcuop/323:20:020
121957599169,3cyclictest601rcuop/321:15:030
121957599168,4cyclictest501rcuop/200:08:420
121957599167,5cyclictest16-21ksoftirqd/021:38:310
121957599166,5cyclictest501rcuop/221:40:400
121957599165,7cyclictest0-21swapper/022:42:080
121957599165,7cyclictest0-21swapper/020:14:210
1219575991612,3cyclictest1346003-21kthreadcore20:53:330
1219575991611,4cyclictest29021-21rtkit-daemon19:10:420
1219575991610,5cyclictest1452577-21aten_repower_en22:23:270
1219575991610,5cyclictest1440494-21aten2.4-expect22:13:280
1219575991610,5cyclictest1440494-21aten2.4-expect22:13:280
1219575991610,5cyclictest1352860-21kthreadcore20:58:370
1219575991610,3cyclictest601rcuop/322:02:560
1219575991610,3cyclictest601rcuop/300:13:560
121957599160,8cyclictest1290-21dbus-daemon00:35:010
121957599160,6cyclictest0-21swapper/019:48:330
121957599160,3cyclictest1579022-21munin-plugin-st00:05:010
2649091150,1phc2sys0-21swapper/322:53:433
2649091150,1phc2sys0-21swapper/320:33:413
121958099159,4cyclictest1263225-21chrt19:43:372
121958099158,3cyclictest0-21swapper/222:33:272
121958099155,7cyclictest0-21swapper/200:40:012
1219580991511,1cyclictest0-21swapper/222:09:572
1219577991512,2cyclictest1518552-21latency_hist23:15:001
1219577991512,2cyclictest1391932-21cut21:30:021
1219577991512,2cyclictest1330795-21apt-key20:40:001
1219577991512,2cyclictest1251949-21latency_hist19:35:011
1219577991512,2cyclictest0-21swapper/120:20:011
1219577991511,3cyclictest1372296-21kthreadcore21:13:331
1219577991511,3cyclictest1294000-21unixbench-2d20:08:401
121957799151,12cyclictest1288-1atopacctd19:58:281
121957599159,3cyclictest601rcuop/323:01:020
121957599159,3cyclictest601rcuop/319:40:260
121957599159,3cyclictest191rcu_preempt23:27:110
121957599159,3cyclictest191rcu_preempt20:36:360
121957599153,6cyclictest191rcu_preempt00:20:010
121957599152,7cyclictest1136038-21kworker/0:2+rcu_gp19:10:020
1219575991512,2cyclictest1549992-21gltestperf23:43:300
1219575991512,2cyclictest1512520-21cut23:10:010
1219575991510,4cyclictest1603127-21latency_hist00:25:000
1219575991510,4cyclictest1301394-21sh20:18:310
2649091140,1phc2sys0-21swapper/319:22:523
121958099149,3cyclictest0-21swapper/222:38:282
121958099148,2cyclictest13739202sleep221:16:072
121958099145,5cyclictest0-21swapper/220:40:012
121958099145,4cyclictest0-21swapper/222:50:012
1219580991411,1cyclictest0-21swapper/223:33:322
1219580991411,1cyclictest0-21swapper/222:53:282
1219580991411,1cyclictest0-21swapper/222:05:002
1219580991411,1cyclictest0-21swapper/221:55:352
1219580991411,1cyclictest0-21swapper/221:25:002
1219580991411,1cyclictest0-21swapper/220:43:302
1219580991411,1cyclictest0-21swapper/219:53:352
1219580991411,1cyclictest0-21swapper/219:53:352
1219580991411,1cyclictest0-21swapper/219:20:382
1219580991411,1cyclictest0-21swapper/200:05:012
1219580991411,1cyclictest0-21swapper/200:00:002
1219577991411,2cyclictest1608406-21needreboot00:28:371
1219577991411,2cyclictest1598417-21gltestperf00:23:301
1219577991411,2cyclictest1595051-21kthreadcore00:18:331
1219577991411,2cyclictest1410668-21cpuspeed_turbos21:48:281
1219577991411,2cyclictest1405066-21cut21:43:311
1219577991411,2cyclictest1398952-21fschecks_time21:38:311
1219577991411,2cyclictest1286-21avahi-daemon21:03:381
1219577991411,2cyclictest1271799-21kernelversion19:53:341
1219577991411,2cyclictest1271799-21kernelversion19:53:341
1219577991411,2cyclictest1225025-21ptp4l-jitter19:13:391
1219577991411,2cyclictest1219613-21munin-plugin-st19:10:011
1219577991410,3cyclictest1521870-21kthreadcore23:18:341
1219577991410,3cyclictest1397810-21systemd-run21:35:011
1219577991410,3cyclictest1308008-21irqrtprio20:23:351
121957599140,4cyclictest1276796-21apt-get19:58:280
2649091130,2phc2sys0-21swapper/322:13:333
2649091130,2phc2sys0-21swapper/322:13:333
2649091130,2phc2sys0-21swapper/321:38:193
2649091130,2phc2sys0-21swapper/300:27:273
121958099136,4cyclictest1555256-21chrt23:47:182
121958099136,4cyclictest1282761-21chrt20:03:052
121958099134,6cyclictest0-21swapper/221:10:012
121958099133,6cyclictest0-21swapper/223:08:282
1219580991311,1cyclictest0-21swapper/222:20:012
1219580991311,1cyclictest0-21swapper/220:51:482
1219580991310,1cyclictest0-21swapper/223:28:402
1219580991310,1cyclictest0-21swapper/223:00:392
1219580991310,1cyclictest0-21swapper/222:43:292
1219580991310,1cyclictest0-21swapper/222:28:282
1219580991310,1cyclictest0-21swapper/222:23:342
1219580991310,1cyclictest0-21swapper/221:47:332
1219580991310,1cyclictest0-21swapper/221:30:002
1219580991310,1cyclictest0-21swapper/219:38:382
1219580991310,1cyclictest0-21swapper/200:15:522
1219580991310,1cyclictest0-21swapper/200:15:012
121957799139,3cyclictest1582627-21kthreadcore00:08:351
121957799139,3cyclictest1562639-21irqrtprio23:53:301
121957799139,3cyclictest1287987-21unixbench-2d20:03:421
121957799139,2cyclictest0-21swapper/119:45:021
121957799136,5cyclictest257-21systemd-journal22:50:011
1219577991311,1cyclictest1541309-21kthreadcore23:33:341
1219577991310,2cyclictest1620248-21kthreadcore00:38:331
1219577991310,2cyclictest1556408-21irqcore23:48:341
1219577991310,2cyclictest1526471-21kthreadcore23:23:351
1219577991310,2cyclictest1503339-21kthreadcore23:03:361
1219577991310,2cyclictest1496471-21kthreadcore22:58:341
1219577991310,2cyclictest1496471-21kthreadcore22:58:341
1219577991310,2cyclictest1489539-21if_enp1s0.822:53:331
1219577991310,2cyclictest1478131-21kthreadcore22:43:331
1219577991310,2cyclictest1469079-21kthreadcore22:33:351
1219577991310,2cyclictest1463439-21rt-features22:28:381
1219577991310,2cyclictest1453361-21if_enp1s0.822:23:311
1219577991310,2cyclictest1443144-21kthreadcore22:13:351
1219577991310,2cyclictest1443144-21kthreadcore22:13:351
1219577991310,2cyclictest1435125-21tail22:08:341
1219577991310,2cyclictest1425844-21kthreadcore21:58:341
1219577991310,2cyclictest1290-21dbus-daemon21:10:011
1219577991310,2cyclictest1242063-21kthreadcore19:28:361
2649091120,9phc2sys0-21swapper/300:35:403
2649091120,2phc2sys0-21swapper/323:13:323
2649091120,1phc2sys0-21swapper/322:35:033
121958099129,1cyclictest0-21swapper/223:13:302
121958099129,1cyclictest0-21swapper/221:43:352
121958099129,1cyclictest0-21swapper/220:23:402
121958099129,1cyclictest0-21swapper/200:28:292
121958099129,1cyclictest0-21swapper/200:23:322
121958099128,2cyclictest0-21swapper/200:08:282
121958099126,3cyclictest1543230-21chrt23:37:482
121958099126,3cyclictest1524884-21chrt23:20:092
121958099126,3cyclictest1397668-21chrt21:34:372
121958099126,3cyclictest1264335-21chrt19:46:462
121958099124,5cyclictest0-21swapper/220:30:012
121958099123,6cyclictest13376202sleep220:46:262
121958099123,5cyclictest0-21swapper/220:08:272
121957799129,2cyclictest1531278-21aten_repower_en23:28:271
121957799129,2cyclictest1378662-21kthreadcore21:18:371
121957799129,2cyclictest1297209-21kthreadcore20:13:361
121957799129,2cyclictest1269345-21processes19:48:371
121957799126,3cyclictest1235680-21/usr/sbin/munin19:23:331
2649091114,1phc2sys0-21swapper/320:38:293
2649091112,1phc2sys0-21swapper/323:23:283
2649091110,3phc2sys0-21swapper/319:53:303
2649091110,3phc2sys0-21swapper/319:53:303
2649091110,2phc2sys0-21swapper/322:33:273
2649091110,2phc2sys0-21swapper/321:58:003
2649091110,2phc2sys0-21swapper/321:33:273
2649091110,2phc2sys0-21swapper/321:06:053
2649091110,2phc2sys0-21swapper/320:15:013
2649091110,1phc2sys0-21swapper/323:52:093
2649091110,1phc2sys0-21swapper/323:42:313
2649091110,1phc2sys0-21swapper/323:05:253
2649091110,1phc2sys0-21swapper/322:47:493
2649091110,1phc2sys0-21swapper/321:45:503
2649091110,1phc2sys0-21swapper/321:21:133
2649091110,1phc2sys0-21swapper/321:15:083
2649091110,1phc2sys0-21swapper/320:51:563
2649091110,1phc2sys0-21swapper/319:55:543
2649091110,1phc2sys0-21swapper/300:15:053
121958099119,1cyclictest0-21swapper/221:35:242
121958099119,1cyclictest0-21swapper/220:16:222
121958099119,1cyclictest0-21swapper/220:11:162
121958099119,1cyclictest0-21swapper/219:13:352
121958099119,1cyclictest0-21swapper/200:31:562
121958099118,1cyclictest0-21swapper/221:11:232
121958099118,1cyclictest0-21swapper/219:58:342
121958099113,5cyclictest0-21swapper/219:20:012
121958099110,6cyclictest1500336-21taskset23:00:012
121958099110,6cyclictest1500336-21taskset23:00:012
121958099110,3cyclictest0-21swapper/223:18:272
121957799110,6cyclictest1416979-21cut21:53:301
2649091102,2phc2sys0-21swapper/319:12:383
2649091101,2phc2sys0-21swapper/322:25:013
2649091101,2phc2sys0-21swapper/322:20:013
2649091100,2phc2sys0-21swapper/323:50:013
2649091100,2phc2sys0-21swapper/322:08:303
2649091100,2phc2sys0-21swapper/322:03:263
2649091100,2phc2sys0-21swapper/321:53:323
2649091100,2phc2sys0-21swapper/321:44:553
2649091100,2phc2sys0-21swapper/320:43:263
2649091100,2phc2sys0-21swapper/320:23:313
2649091100,2phc2sys0-21swapper/319:27:253
2649091100,2phc2sys0-21swapper/300:08:283
2649091100,1phc2sys0-21swapper/323:57:103
2649091100,1phc2sys0-21swapper/323:16:593
2649091100,1phc2sys0-21swapper/322:44:373
2649091100,1phc2sys0-21swapper/322:27:103
2649091100,1phc2sys0-21swapper/321:03:343
2649091100,1phc2sys0-21swapper/320:07:443
2649091100,1phc2sys0-21swapper/319:47:483
2649091100,1phc2sys0-21swapper/319:36:263
2649091100,1phc2sys0-21swapper/300:01:153
121958099101,6cyclictest1549047-21chrt23:40:122
264909191,2phc2sys0-21swapper/323:38:313
264909191,2phc2sys0-21swapper/320:28:443
264909190,3phc2sys0-21swapper/321:13:273
264909190,3phc2sys0-21swapper/320:18:293
264909190,2phc2sys0-21swapper/322:58:353
264909190,2phc2sys0-21swapper/322:58:353
264909190,2phc2sys0-21swapper/321:29:553
264909190,2phc2sys0-21swapper/320:48:313
264909190,2phc2sys0-21swapper/319:43:283
264909190,2phc2sys0-21swapper/319:08:293
264909190,2phc2sys0-21swapper/300:24:563
264909190,1phc2sys0-21swapper/323:31:053
12195809997,1cyclictest0-21swapper/219:10:022
12195809991,6cyclictest1440300-21chrt22:12:362
12195809991,6cyclictest1440300-21chrt22:12:362
264909182,1phc2sys0-21swapper/320:03:113
264909181,2phc2sys0-21swapper/323:25:203
264909181,2phc2sys0-21swapper/323:02:523
264909181,2phc2sys0-21swapper/319:30:053
264909180,1phc2sys0-21swapper/319:18:113
264909180,1phc2sys0-21swapper/300:31:443
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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