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2026-07-30 - 18:10
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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 Thu Jul 30, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
246396021250,1sleep00-21swapper/010:45:550
246396021250,1sleep00-21swapper/010:45:550
247740821050,4sleep00-21swapper/010:54:360
255234221040,2sleep30-21swapper/311:45:423
25147422260,2sleep30-21swapper/311:20:003
2172482992421,2cyclictest2499669-21apt-key11:10:011
2172481992411,7cyclictest0-21swapper/009:20:390
2172483992321,1cyclictest0-21swapper/208:00:012
2172482992320,2cyclictest664-21dbus-daemon11:25:011
2172481992313,5cyclictest2620775-21kthreadcore12:30:590
2172481992313,5cyclictest0-21swapper/009:50:020
2172482992219,2cyclictest2253827-21apt-config08:15:011
2172482992216,2cyclictest191rcu_preempt10:16:041
2172482992214,3cyclictest0-21swapper/111:20:011
2172482992211,5cyclictest0-21swapper/108:56:461
2172481992215,6cyclictest0-21swapper/011:30:020
2172481992213,5cyclictest2427783-21kthreadcore10:20:590
2172481992212,6cyclictest0-21swapper/011:56:010
2172481992212,5cyclictest0-21swapper/009:11:010
2172481992210,7cyclictest0-21swapper/010:45:030
2172481992210,6cyclictest0-21swapper/010:30:370
2172483992118,1cyclictest0-21swapper/211:10:032
217248299215,5cyclictest2342273-21cat09:21:031
217248299213,6cyclictest2373780-21rm09:44:011
2172482992118,2cyclictest2223566-21sh07:50:011
2172482992110,6cyclictest0-21swapper/111:13:031
2172481992116,3cyclictest0-21swapper/007:50:020
217248399201,8cyclictest0-21swapper/209:30:392
217248399201,7cyclictest0-21swapper/207:30:382
217248299208,8cyclictest2180022-21kthreadcore07:15:031
217248299206,5cyclictest2234869-21sendmail_mailqu07:56:041
217248299203,11cyclictest2287767-21cut08:41:011
2172482992014,2cyclictest191rcu_preempt08:35:591
2172482992010,2cyclictest69250irq/121-eno111:56:121
217248199209,6cyclictest0-21swapper/012:26:030
2172481992017,2cyclictest2172479-21cyclictest07:15:030
2172481992013,2cyclictest17750irq/127-ahci[0000:00:17.0]10:15:010
1157598200,3rtkit-daemon1307-21mta-sts-daemon08:09:531
217248399192,6cyclictest0-21swapper/209:30:012
2172483991916,1cyclictest0-21swapper/210:41:032
2172483991916,1cyclictest0-21swapper/210:30:012
217248299199,5cyclictest2483914-21rm10:57:011
217248299198,6cyclictest0-21swapper/107:51:021
217248299198,3cyclictest0-21swapper/112:25:021
217248299195,5cyclictest2329769-21sshd09:15:031
217248299194,10cyclictest2631552-21gzip12:36:021
217248299192,5cyclictest2316339-21http09:05:371
217248299192,11cyclictest2624370-21cat12:31:061
2172482991916,2cyclictest664-21dbus-daemon11:55:011
2172482991916,2cyclictest664-21dbus-daemon09:05:011
2172482991916,2cyclictest2411493-21/usr/sbin/munin10:11:051
2172482991914,1cyclictest191rcu_preempt12:13:441
2172482991914,1cyclictest191rcu_preempt08:46:051
2172482991912,3cyclictest0-21swapper/110:10:011
217248199199,5cyclictest0-21swapper/011:06:020
217248199199,5cyclictest0-21swapper/011:05:010
2172481991916,2cyclictest2596385-21sh12:15:010
2172481991916,2cyclictest1-21systemd09:00:010
2172481991916,2cyclictest0-21swapper/011:00:020
2172481991911,7cyclictest0-21swapper/010:05:370
3240591180,2phc2sys0-21swapper/311:25:553
217248399181,6cyclictest0-21swapper/212:35:362
2172483991816,1cyclictest0-21swapper/208:56:472
2172483991815,1cyclictest0-21swapper/212:05:022
2172483991815,1cyclictest0-21swapper/210:55:012
2172483991815,1cyclictest0-21swapper/210:15:372
217248299187,6cyclictest36-21ksoftirqd/110:50:031
217248299187,6cyclictest36-21ksoftirqd/110:50:031
217248299187,6cyclictest2617695-21ssh12:27:351
217248299187,3cyclictest2186955-21systemd-run07:20:011
217248299185,8cyclictest2545027-21aten2.4-expect11:40:481
217248299184,9cyclictest2522713-21sh11:25:401
217248299184,9cyclictest2351641-21sh09:29:391
217248299183,6cyclictest2258751-21cut08:16:001
217248299183,4cyclictest2557173-21phc2sys-jitter11:46:001
217248299182,5cyclictest2192913-21latency_hist07:25:011
2172482991815,2cyclictest2581284-21apt-get12:05:011
2172482991812,2cyclictest2398203-21kthreadcore10:00:571
2172482991812,2cyclictest191rcu_preempt09:56:001
2172481991815,2cyclictest2581498-21cut12:05:020
2172481991815,2cyclictest2544301-21awk11:40:010
2172481991815,2cyclictest2522162-21systemd-run11:25:010
2172481991815,2cyclictest2322076-21idleruntime-cro09:10:010
3240591170,1phc2sys0-21swapper/312:24:433
2172483991715,1cyclictest0-21swapper/212:00:012
2172483991714,1cyclictest0-21swapper/212:21:032
2172483991714,1cyclictest0-21swapper/212:20:022
2172483991714,1cyclictest0-21swapper/211:35:592
2172483991714,1cyclictest0-21swapper/211:25:012
2172483991714,1cyclictest0-21swapper/210:35:012
2172483991714,1cyclictest0-21swapper/210:25:022
2172483991714,1cyclictest0-21swapper/210:10:592
2172483991714,1cyclictest0-21swapper/209:24:272
2172483991714,1cyclictest0-21swapper/209:05:032
2172483991714,1cyclictest0-21swapper/208:10:012
2172483991714,1cyclictest0-21swapper/207:25:012
217248299178,2cyclictest0-21swapper/111:38:421
217248299174,8cyclictest2588128-21sh12:07:331
217248299174,4cyclictest0-21swapper/110:35:011
217248299173,9cyclictest2449286-21expr10:35:571
217248299173,9cyclictest2435082-21kthreadcore10:25:581
217248299173,9cyclictest2385737-21grep09:51:011
217248299173,9cyclictest2359944-21sh09:35:481
217248299173,9cyclictest2272357-21sed08:30:011
217248299173,8cyclictest2236362-21cat08:00:551
217248299173,5cyclictest2597037-21cut12:15:471
217248299173,5cyclictest2486153-21gltestperf11:00:561
217248299173,5cyclictest2457509-21cat10:40:571
217248299171,5cyclictest2426371-21ssh10:20:421
2172482991714,2cyclictest664-21dbus-daemon09:31:371
2172482991714,2cyclictest2375396-21sort09:45:591
2172482991714,2cyclictest2260870-21tr08:20:541
2172482991710,4cyclictest191rcu_preempt09:11:401
217248299170,3cyclictest2216515-21python307:41:041
217248299170,12cyclictest2211272-21munin-run07:40:021
217248199179,4cyclictest0-21swapper/009:31:260
217248199178,5cyclictest0-21swapper/010:17:170
2172481991715,1cyclictest2551696-21idleruntime-cro11:45:010
2172481991714,2cyclictest2608241-21kthreadcore12:20:590
2172481991714,2cyclictest2559990-21tr11:50:550
2172481991712,4cyclictest2180867-21sort07:15:040
3240591160,4phc2sys0-21swapper/312:39:263
3240591160,4phc2sys0-21swapper/310:29:203
3240591160,3phc2sys0-21swapper/309:25:583
3240591160,2phc2sys0-21swapper/307:46:043
217248399161,7cyclictest0-21swapper/207:40:012
2172483991614,1cyclictest0-21swapper/211:45:032
2172483991614,1cyclictest0-21swapper/208:40:022
2172483991613,1cyclictest0-21swapper/212:05:372
2172483991613,1cyclictest0-21swapper/211:31:212
2172483991613,1cyclictest0-21swapper/210:46:032
2172483991613,1cyclictest0-21swapper/210:46:032
2172483991613,1cyclictest0-21swapper/210:00:522
2172483991613,1cyclictest0-21swapper/207:55:002
2172483991612,2cyclictest0-21swapper/208:00:592
2172483991611,2cyclictest0-21swapper/207:46:042
217248299165,6cyclictest0-21swapper/107:30:551
217248299163,8cyclictest2474239-21grep10:51:031
217248299163,8cyclictest2297134-21grep08:50:561
217248299163,8cyclictest2193463-21sh07:25:501
217248299162,5cyclictest2272646-21cat08:30:391
2172482991613,2cyclictest2530469-21cstates11:30:551
217248199167,5cyclictest0-21swapper/009:15:540
2172481991613,2cyclictest2513091-21switchtime11:16:050
2172481991613,2cyclictest2372224-21phc2sys-jitter09:41:030
2172481991613,2cyclictest2363726-21kthreadcore09:36:010
2172481991613,2cyclictest2264793-21kthreadcore08:21:000
2172481991613,2cyclictest11561-21sendmail-mta12:05:500
2172481991613,2cyclictest0-21swapper/012:40:020
2172481991613,2cyclictest0-21swapper/010:05:020
2172481991613,2cyclictest0-21swapper/009:05:010
2172481991612,3cyclictest2257222-21kthreadcore08:16:000
3240591150,6phc2sys0-21swapper/308:05:373
3240591150,5phc2sys0-21swapper/312:11:523
217248399159,4cyclictest0-21swapper/207:11:042
217248399151,8cyclictest0-21swapper/209:50:012
217248399151,7cyclictest0-21swapper/209:10:012
217248399151,5cyclictest0-21swapper/208:50:012
2172483991513,1cyclictest0-21swapper/212:31:002
2172483991512,1cyclictest0-21swapper/211:15:592
2172483991512,1cyclictest0-21swapper/210:05:262
2172483991512,1cyclictest0-21swapper/209:54:042
2172483991512,1cyclictest0-21swapper/209:12:032
2172483991512,1cyclictest0-21swapper/208:53:122
2172483991512,1cyclictest0-21swapper/208:35:012
2172483991512,1cyclictest0-21swapper/208:25:542
2172483991511,2cyclictest0-21swapper/211:01:032
217248399150,6cyclictest25595902sleep211:50:392
217248299153,5cyclictest2172316-21latency_hist07:10:021
217248199159,5cyclictest2386466-21kthreadcore09:51:010
217248199159,5cyclictest0-21swapper/010:25:580
217248199158,6cyclictest2212861-21tr07:40:590
217248199158,5cyclictest0-21swapper/011:46:010
217248199154,6cyclictest0-21swapper/011:32:020
217248199154,6cyclictest0-21swapper/007:33:530
2172481991512,2cyclictest2351954-21kworker/u16:0+nfsiod11:14:310
2172481991512,2cyclictest2254031-21apt-key08:15:010
2172481991510,4cyclictest1309-21mta-sts-daemon08:25:540
3240591140,2phc2sys0-21swapper/312:17:083
3240591140,2phc2sys0-21swapper/310:56:533
3240591140,2phc2sys0-21swapper/310:32:403
3240591140,2phc2sys0-21swapper/310:13:253
3240591140,2phc2sys0-21swapper/309:58:533
3240591140,1phc2sys0-21swapper/311:03:393
217248399141,4cyclictest0-21swapper/209:20:012
217248399141,4cyclictest0-21swapper/207:20:012
2172483991412,1cyclictest0-21swapper/211:10:582
2172483991412,1cyclictest0-21swapper/209:35:022
2172483991412,1cyclictest0-21swapper/208:25:012
2172483991412,1cyclictest0-21swapper/208:10:572
2172483991411,1cyclictest0-21swapper/211:26:032
217248199149,3cyclictest2278682-21/usr/sbin/munin08:35:370
217248199145,5cyclictest0-21swapper/010:35:040
217248199145,5cyclictest0-21swapper/008:46:110
217248199141,7cyclictest2205399-21apt-get07:35:380
2172481991411,2cyclictest2600684-21kthreadcore12:16:010
2172481991411,2cyclictest2345041-21aten2.4-expect09:25:470
2172481991411,2cyclictest2274782-21kthreadcore08:31:020
2172481991411,2cyclictest2242384-21cpuspeed_turbos08:05:540
2172481991411,2cyclictest2230606-21gltestperf07:55:570
2172481991411,2cyclictest2187822-21fschecks_count07:20:550
2172481991410,2cyclictest2396222-21ssh10:00:010
217248199140,9cyclictest2236547-21df_inode08:00:550
3240591131,3phc2sys0-21swapper/311:40:393
3240591131,2phc2sys0-21swapper/307:41:193
3240591130,3phc2sys0-21swapper/309:40:383
3240591130,2phc2sys0-21swapper/311:12:453
3240591130,2phc2sys0-21swapper/310:48:223
3240591130,2phc2sys0-21swapper/310:48:223
3240591130,2phc2sys0-21swapper/310:06:513
3240591130,2phc2sys0-21swapper/310:03:553
3240591130,2phc2sys0-21swapper/308:25:353
3240591130,2phc2sys0-21swapper/307:19:563
22027232130,2sleep30-21swapper/307:31:003
2172483991311,1cyclictest0-21swapper/209:56:022
2172483991310,1cyclictest0-21swapper/212:25:092
2172483991310,1cyclictest0-21swapper/212:11:052
2172483991310,1cyclictest0-21swapper/209:41:002
2172483991310,1cyclictest0-21swapper/208:41:012
2172483991310,1cyclictest0-21swapper/207:25:542
217248399130,7cyclictest0-21swapper/207:40:382
217248199139,2cyclictest0-21swapper/008:55:020
2172481991310,2cyclictest2285496-21gltestperf08:40:570
2172481991310,2cyclictest1306-21mta-sts-daemon07:26:150
3240591127,2phc2sys0-21swapper/311:06:493
3240591122,2phc2sys0-21swapper/312:26:203
3240591121,2phc2sys0-21swapper/312:07:083
3240591120,2phc2sys0-21swapper/310:54:323
3240591120,2phc2sys0-21swapper/310:42:183
3240591120,2phc2sys0-21swapper/310:23:333
3240591120,2phc2sys0-21swapper/308:31:043
217248399129,1cyclictest0-21swapper/208:15:502
2172483991210,1cyclictest0-21swapper/211:45:572
2172483991210,1cyclictest0-21swapper/210:55:422
2172483991210,1cyclictest0-21swapper/210:35:562
217248199126,5cyclictest2227319-21tr07:50:590
3240591113,2phc2sys0-21swapper/312:32:093
3240591111,2phc2sys0-21swapper/310:19:583
3240591111,2phc2sys0-21swapper/308:45:393
3240591111,2phc2sys0-21swapper/307:25:373
3240591110,4phc2sys0-21swapper/312:00:383
3240591110,2phc2sys0-21swapper/309:15:533
3240591110,2phc2sys0-21swapper/307:05:373
3240591110,1phc2sys0-21swapper/311:39:503
3240591110,1phc2sys0-21swapper/309:36:093
3240591110,1phc2sys0-21swapper/308:40:183
23025702110,1sleep30-21swapper/308:54:563
217248399111,4cyclictest0-21swapper/207:10:012
217248199114,5cyclictest664-21dbus-daemon07:10:020
3240591102,2phc2sys0-21swapper/309:21:263
3240591101,2phc2sys0-21swapper/309:32:133
3240591101,2phc2sys0-21swapper/309:12:173
3240591101,2phc2sys0-21swapper/307:21:003
3240591100,3phc2sys0-21swapper/307:50:363
3240591100,2phc2sys0-21swapper/311:56:063
3240591100,2phc2sys0-21swapper/311:21:183
3240591100,2phc2sys0-21swapper/310:35:373
3240591100,2phc2sys0-21swapper/309:51:003
3240591100,2phc2sys0-21swapper/309:46:033
3240591100,2phc2sys0-21swapper/309:00:593
3240591100,2phc2sys0-21swapper/308:21:583
3240591100,2phc2sys0-21swapper/308:20:023
3240591100,2phc2sys0-21swapper/308:10:373
3240591100,2phc2sys0-21swapper/307:55:383
3240591100,2phc2sys0-21swapper/307:35:383
3240591100,1phc2sys0-21swapper/309:08:163
324059193,2phc2sys0-21swapper/308:35:363
324059191,2phc2sys0-21swapper/307:11:063
324059190,2phc2sys0-21swapper/311:50:573
324059190,2phc2sys0-21swapper/311:30:563
324059190,2phc2sys0-21swapper/308:56:013
324059190,2phc2sys0-21swapper/308:00:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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