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2026-04-13 - 09:14
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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
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack0slot2.osadl.org (updated Mon Apr 13, 2026 00:43:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
396366721460,1sleep73963665-21ntpq22:27:197
37543712960,1sleep50-21swapper/521:02:135
3516624995351,2cyclictest3833954-21kworker/u16:1+events_unbound21:37:194
3516624995250,2cyclictest3870198-21kworker/u16:4+events_unbound22:42:234
3516624995249,2cyclictest3488210-21kworker/u16:3+events_unbound19:17:074
3516624995149,2cyclictest3870198-21kworker/u16:4+events_unbound22:17:074
3516624995149,2cyclictest3488210-21kworker/u16:3+events_unbound19:52:084
3516624995048,2cyclictest3833954-21kworker/u16:1+flush-8:021:47:094
3516624995048,2cyclictest3488210-21kworker/u16:3+events_unbound21:22:084
351632625040,7sleep50-21swapper/519:01:395
3516624994948,1cyclictest3918456-21kworker/u16:0+events_unbound22:32:104
351631824838,7sleep60-21swapper/619:01:326
3516624994746,1cyclictest3488210-21kworker/u16:3+flush-8:021:27:094
3516624994745,2cyclictest4181857-21kworker/u16:2+events_unbound00:27:164
3516624994745,2cyclictest4112196-21kworker/u16:5+events_unbound23:46:554
3516624994744,2cyclictest3783457-21kworker/u16:2+events_unbound21:17:074
3516624994644,2cyclictest3991360-21kworker/u16:3+events_unbound23:56:554
3516624994643,2cyclictest3488210-21kworker/u16:3+events_unbound20:02:084
3516624994543,2cyclictest4015507-21kworker/u16:2+events_unbound23:31:114
3516624994543,2cyclictest3870198-21kworker/u16:4+events_unbound22:07:244
3516624994543,2cyclictest3673122-21kworker/u16:1+flush-8:021:11:534
3516624994543,2cyclictest3606316-21kworker/u16:4+events_unbound20:47:234
3516624994543,2cyclictest3488210-21kworker/u16:3+flush-8:020:07:214
3516624994543,2cyclictest3488210-21kworker/u16:3+flush-8:020:07:214
3516624994442,2cyclictest3783457-21kworker/u16:2+events_unbound21:52:084
3516624994341,2cyclictest4181857-21kworker/u16:2+events_unbound00:17:284
3516624994341,2cyclictest3870198-21kworker/u16:4+flush-8:021:57:194
3516624994240,2cyclictest4181857-21kworker/u16:2+events_unbound00:11:114
3516624994240,2cyclictest3673122-21kworker/u16:1+events_unbound21:05:204
3516633994137,3cyclictest124-21kswapd000:17:077
3516624994139,2cyclictest3966856-21kworker/u16:1+events_unbound22:48:314
3516624994139,2cyclictest3783457-21kworker/u16:2+events_unbound21:15:594
3516624994139,2cyclictest14274-21kworker/u16:0+events_unbound00:22:214
351633424130,8sleep40-21swapper/419:01:474
3516624994038,2cyclictest4061270-21kworker/u16:0+events_unbound23:18:114
3516624994038,2cyclictest3870198-21kworker/u16:4+events_unbound22:23:084
3516624994038,2cyclictest3606316-21kworker/u16:4+flush-8:020:17:214
3516624994038,2cyclictest3488210-21kworker/u16:3+events_unbound22:14:404
3516624994038,2cyclictest3488210-21kworker/u16:3+events_unbound22:14:404
3516624994037,2cyclictest4061270-21kworker/u16:0+events_unbound23:24:114
3516624994037,2cyclictest3991360-21kworker/u16:3+flush-8:023:12:094
35160802403,31sleep70-21swapper/718:58:137
3516629993937,2cyclictest4112156-21kworker/u16:4+flush-8:023:32:236
3516629993937,2cyclictest4112156-21kworker/u16:4+flush-8:023:32:236
3516629993937,2cyclictest3488210-21kworker/u16:3+flush-8:022:12:246
3516629993937,2cyclictest3488210-21kworker/u16:3+flush-8:022:12:246
3516629993936,2cyclictest3488210-21kworker/u16:3+flush-8:021:26:486
3516624993937,2cyclictest4015507-21kworker/u16:2+flush-8:023:02:254
3516624993937,2cyclictest3991360-21kworker/u16:3+events_unbound23:46:514
3516624993937,2cyclictest3991360-21kworker/u16:3+events_unbound23:38:234
3516624993937,2cyclictest3991360-21kworker/u16:3+events_unbound23:38:234
3516624993937,2cyclictest3966856-21kworker/u16:1+events_unbound22:37:244
3516624993937,2cyclictest3918456-21kworker/u16:0+events_unbound22:29:044
3516624993937,2cyclictest14274-21kworker/u16:0+events_unbound00:12:564
3516624993937,2cyclictest14274-21kworker/u16:0+events_unbound00:12:564
3516624993936,2cyclictest4015507-21kworker/u16:2+events_unbound23:10:204
3516624993837,1cyclictest4015507-21kworker/u16:2+events_unbound22:59:204
3516624993836,2cyclictest3783457-21kworker/u16:2+events_unbound22:06:004
3516624993835,2cyclictest4112196-21kworker/u16:5+events_unbound00:02:354
3516624993835,2cyclictest4112156-21kworker/u16:4+flush-8:023:32:554
3516624993835,2cyclictest4112156-21kworker/u16:4+flush-8:023:32:554
3516633993734,2cyclictest3540553-21iwlist19:12:087
3516629993733,3cyclictest3488210-21kworker/u16:3+flush-8:019:17:196
3516627993735,2cyclictest4181857-21kworker/u16:2+flush-8:000:12:235
3516627993735,2cyclictest4181857-21kworker/u16:2+flush-8:000:12:235
3516624993735,2cyclictest3539546-21kworker/u16:2+events_unbound19:22:244
3516624993734,2cyclictest3783457-21kworker/u16:2+events_unbound21:31:564
3516624993734,2cyclictest3488210-21kworker/u16:3+events_unbound19:37:114
3516629993634,2cyclictest3488210-21kworker/u16:3+flush-8:021:46:486
3516624993634,2cyclictest3991360-21kworker/u16:3+events_unbound23:56:514
3516627993531,3cyclictest3558486-21kworker/u16:0+flush-8:019:52:195
3516624993533,2cyclictest3966856-21kworker/u16:1+flush-8:022:52:214
3516624993533,2cyclictest3488210-21kworker/u16:3+events_unbound21:45:554
3516629993431,2cyclictest3488210-21kworker/u16:3+events_unbound19:07:096
3516624993432,2cyclictest3488210-21kworker/u16:3+events_unbound19:07:194
3516629993331,2cyclictest3991360-21kworker/u16:3+flush-8:022:47:206
3516629993331,2cyclictest3739558-21kworker/u16:0+flush-8:020:56:536
3516629993331,2cyclictest3739558-21kworker/u16:0+flush-8:020:56:536
3516629993331,2cyclictest3539546-21kworker/u16:2+events_unbound19:22:086
3516624993330,2cyclictest3673122-21kworker/u16:1+flush-8:020:57:084
3516633993230,1cyclictest3710287-21ntpq20:37:197
3516629993229,2cyclictest3991360-21kworker/u16:3+events_unbound23:17:076
3516627993230,2cyclictest3966856-21kworker/u16:1+flush-8:023:01:485
3516627993130,1cyclictest3870198-21kworker/u16:4+events_unbound21:59:575
3516629993028,2cyclictest4112196-21kworker/u16:5+flush-8:023:42:236
3516627993029,1cyclictest3991360-21kworker/u16:3+events_unbound23:11:015
3516627993028,2cyclictest3539546-21kworker/u16:2+flush-8:019:21:535
3516627993027,2cyclictest3606316-21kworker/u16:4+flush-8:020:32:105
3516624993027,3cyclictest3488210-21kworker/u16:3+flush-8:019:27:094
351663399290,28cyclictest902-21dbus-daemon23:46:537
3516624992927,2cyclictest3606316-21kworker/u16:4+flush-8:020:52:204
3516624992927,2cyclictest3606316-21kworker/u16:4+flush-8:020:52:204
3516624992927,2cyclictest3488210-21kworker/u16:3+events_unbound19:47:194
3516627992825,2cyclictest3991360-21kworker/u16:3+flush-8:023:36:525
3516627992825,2cyclictest3991360-21kworker/u16:3+flush-8:023:36:525
3516624992826,2cyclictest3673122-21kworker/u16:1+events_unbound20:35:284
36630582270,1chrt3663059-21unixbench_multi20:12:247
351663399270,26cyclictest4110806-21sh23:30:127
3516629992624,2cyclictest4112196-21kworker/u16:5+events_unbound23:37:206
3516629992624,2cyclictest4112196-21kworker/u16:5+events_unbound23:37:206
3516629992624,2cyclictest3488210-21kworker/u16:3+flush-8:019:37:246
3516627992625,1cyclictest3918456-21kworker/u16:0+events_unbound22:34:075
3516627992624,2cyclictest3488210-21kworker/u16:3+flush-8:020:12:245
3516624992624,2cyclictest3488210-21kworker/u16:3+flush-8:019:32:214
3516624992624,2cyclictest3453910-21kworker/u16:1+events_unbound19:13:094
351663399250,24cyclictest4183762-21systemd-run00:01:537
3516629992523,2cyclictest3488210-21kworker/u16:3+flush-8:021:52:126
3516627992523,2cyclictest4112155-21kworker/u16:1+flush-8:000:06:535
3516633992424,0cyclictest0-21swapper/719:17:247
3516633992418,5cyclictest4159749-21latency_hist23:51:537
351663399240,23cyclictest4074793-21taskset23:15:277
351663399240,22cyclictest902-21dbus-daemon20:31:537
3516627992421,2cyclictest3770221-21kworker/u16:0+flush-8:021:07:295
3516624992422,2cyclictest3606316-21kworker/u16:4+flush-8:020:37:124
3516624992421,2cyclictest3488210-21kworker/u16:3+events_unbound20:01:044
3516633992322,0cyclictest0-21swapper/720:32:197
351663399230,22cyclictest3925039-21grep22:12:167
351663399230,22cyclictest3925039-21grep22:12:167
3516627992320,2cyclictest3488210-21kworker/u16:3+flush-8:020:17:115
351663399220,21cyclictest4079389-21cut23:17:117
3516629992219,2cyclictest4112155-21kworker/u16:1+events_unbound00:07:086
3516627992220,2cyclictest4112196-21kworker/u16:5+flush-8:023:53:235
3516629992119,2cyclictest3870198-21kworker/u16:4+events_unbound22:07:116
3516629992119,2cyclictest3783457-21kworker/u16:2+flush-8:022:26:536
3516627992119,2cyclictest4112196-21kworker/u16:5+flush-8:023:37:215
3516627992119,2cyclictest4112196-21kworker/u16:5+flush-8:023:37:215
3516624992119,2cyclictest3488210-21kworker/u16:3+events_unbound20:16:524
3516624992119,2cyclictest3488210-21kworker/u16:3+events_unbound19:06:154
3516629992018,2cyclictest3673122-21kworker/u16:1+flush-8:021:02:356
3516629992018,2cyclictest14274-21kworker/u16:0+events_unbound00:12:116
3516629992018,2cyclictest14274-21kworker/u16:0+events_unbound00:12:116
351663399190,18cyclictest4050898-21ssh23:06:047
351663399190,18cyclictest3882881-21cpuspeed_turbos21:57:057
3516629991917,2cyclictest3606316-21kworker/u16:4+flush-8:020:27:256
3516627991916,3cyclictest3606316-21kworker/u16:4+flush-8:020:52:245
3516627991916,3cyclictest3606316-21kworker/u16:4+flush-8:020:52:245
3516633991815,2cyclictest4088136-21/usr/sbin/munin23:22:197
3516633991815,2cyclictest4006347-21kthreadcore22:47:117
351663399180,17cyclictest3978875-21dump-pmu-power22:36:537
3516624991816,2cyclictest3673122-21kworker/u16:1+events_unbound20:22:264
3516624991816,2cyclictest3539546-21kworker/u16:2+flush-8:019:46:494
567982170,0sleep756801-21cut00:27:167
3516633991716,0cyclictest0-21swapper/722:52:007
3516633991713,3cyclictest1267-21snmpd20:55:247
3516633991713,3cyclictest1267-21snmpd20:55:247
3516633991711,5cyclictest3720739-21latency_hist20:46:537
351663399170,16cyclictest3858668-21cpuspeed_turbos21:47:057
3516629991715,2cyclictest3783457-21kworker/u16:2+flush-8:021:17:106
3516629991715,2cyclictest3783457-21kworker/u16:2+events_unbound22:31:486
3516629991715,2cyclictest3453910-21kworker/u16:1+events_unbound19:02:126
3516629991715,2cyclictest14274-21kworker/u16:0+flush-8:000:27:236
3516629991715,2cyclictest14274-21kworker/u16:0+flush-8:000:17:166
3516627991715,2cyclictest3991360-21kworker/u16:3+flush-8:022:47:145
3516627991715,2cyclictest3783457-21kworker/u16:2+flush-8:021:56:485
3516627991715,2cyclictest3558486-21kworker/u16:0+flush-8:020:02:245
3516633991612,3cyclictest0-21swapper/719:57:177
3516633991611,4cyclictest1850-21latency_hist00:06:537
351663399160,15cyclictest1267-21snmpd21:55:477
351663399160,14cyclictest1267-21snmpd20:57:157
3516629991613,2cyclictest3991360-21kworker/u16:3+events_unbound23:15:276
3516629991613,2cyclictest3539546-21kworker/u16:2+flush-8:019:42:246
3516627991614,2cyclictest3488210-21kworker/u16:3+flush-8:021:18:055
351663399159,5cyclictest3625296-21latency_hist19:56:537
351663399158,6cyclictest0-21swapper/722:07:197
351663399158,6cyclictest0-21swapper/721:07:267
3516633991512,2cyclictest1267-21snmpd19:26:497
3516633991512,2cyclictest0-21swapper/721:12:237
3516633991511,3cyclictest1267-21snmpd22:42:127
351663399150,14cyclictest3954289-21ssh22:26:047
351663399150,14cyclictest3855367-21sed21:42:267
3516629991513,2cyclictest3870198-21kworker/u16:4+events_unbound23:07:286
3516627991513,2cyclictest3770221-21kworker/u16:0+flush-8:021:12:175
3516624991513,2cyclictest3606316-21kworker/u16:4+flush-8:020:27:274
351663399147,6cyclictest0-21swapper/723:52:247
351663399147,6cyclictest0-21swapper/721:38:497
351663399147,6cyclictest0-21swapper/721:02:077
351663399146,7cyclictest0-21swapper/700:22:557
351663399143,10cyclictest4132753-21ntpq23:37:197
351663399143,10cyclictest4132753-21ntpq23:37:197
3516633991411,2cyclictest3605238-21ntpq19:42:217
351663399140,13cyclictest3833640-21ssh21:36:247
3516629991413,1cyclictest0-21swapper/623:22:086
3516629991411,2cyclictest3966856-21kworker/u16:1+events_unbound22:41:566
3516627991413,1cyclictest0-21swapper/522:31:065
3516627991413,1cyclictest0-21swapper/500:22:245
3516627991411,3cyclictest4015507-21kworker/u16:2+flush-8:022:52:155
3516627991411,2cyclictest4015507-21kworker/u16:2+flush-8:023:22:155
351663399139,3cyclictest3721926-21cat20:47:097
351663399139,3cyclictest1267-21snmpd20:21:447
351663399138,4cyclictest3816875-21grep21:27:167
351663399138,4cyclictest15537-21cat00:12:107
351663399138,4cyclictest15537-21cat00:12:107
351663399137,5cyclictest3537434-21kthreadcore19:07:167
351663399136,6cyclictest0-21swapper/722:17:107
351663399136,6cyclictest0-21swapper/700:06:547
351663399135,7cyclictest0-21swapper/722:38:227
351663399135,7cyclictest0-21swapper/722:04:387
351663399135,7cyclictest0-21swapper/721:18:477
351663399134,8cyclictest4114277-21kthreadcore23:32:127
351663399134,8cyclictest4114277-21kthreadcore23:32:127
351663399134,8cyclictest4028977-21kthreadcore22:57:127
351663399132,4cyclictest3644943-21cat20:07:057
351663399132,4cyclictest3644943-21cat20:07:057
3516633991310,2cyclictest3673384-21/usr/sbin/munin20:22:097
351663399130,12cyclictest4056866-21kthreadcore23:07:177
351663399130,12cyclictest3798678-21expr21:22:067
3516629991312,1cyclictest0-21swapper/623:57:086
3516629991312,1cyclictest0-21swapper/622:37:126
3516629991311,2cyclictest4112155-21kworker/u16:1+events_unbound23:52:276
3516629991311,2cyclictest3870198-21kworker/u16:4+flush-8:021:57:276
3516627991312,1cyclictest0-21swapper/523:48:125
3516627991312,1cyclictest0-21swapper/523:30:325
3516627991312,1cyclictest0-21swapper/521:35:465
3516627991312,1cyclictest0-21swapper/519:27:075
3516627991311,2cyclictest4015507-21kworker/u16:2+flush-8:023:12:285
3516627991311,2cyclictest3673122-21kworker/u16:1+flush-8:020:47:115
3516627991310,2cyclictest3770221-21kworker/u16:0+flush-8:021:21:585
351662799130,13cyclictest0-21swapper/522:40:055
351662799130,13cyclictest0-21swapper/500:18:285
3516624991311,2cyclictest3673122-21kworker/u16:1+flush-8:020:42:234
351663399128,3cyclictest3586155-21ntpq19:32:187
351663399121,10cyclictest3588235-21hddtemp_smartct19:37:107
351663399120,3cyclictest3606538-21/usr/sbin/munin19:47:197
351663399120,11cyclictest3576775-21smart_sda19:27:227
351663399120,10cyclictest0-21swapper/719:02:177
3516629991211,1cyclictest0-21swapper/622:56:356
3516629991211,1cyclictest0-21swapper/621:39:116
3516629991210,2cyclictest3966856-21kworker/u16:1+flush-8:022:32:086
3516629991210,2cyclictest3770221-21kworker/u16:0+flush-8:021:07:356
3516629991210,2cyclictest3673122-21kworker/u16:1+flush-8:020:22:126
3516629991210,2cyclictest3488210-21kworker/u16:3+events_unbound22:17:156
351662999120,12cyclictest0-21swapper/623:50:496
3516627991211,1cyclictest0-21swapper/522:25:455
3516627991211,1cyclictest0-21swapper/522:06:125
3516627991210,2cyclictest3488210-21kworker/u16:3+flush-8:019:51:325
351662799120,1cyclictest0-21swapper/520:44:225
351662799120,0cyclictest0-21swapper/500:30:275
351663399112,8cyclictest3635268-21cpu20:02:057
351662999119,2cyclictest3488210-21kworker/u16:3+events_unbound21:47:076
3516629991110,1cyclictest0-21swapper/620:09:196
3516629991110,1cyclictest0-21swapper/620:09:196
3516629991110,1cyclictest0-21swapper/619:33:136
351662999110,11cyclictest0-21swapper/621:27:506
351662999110,11cyclictest0-21swapper/621:12:326
351662999110,0cyclictest0-21swapper/623:00:326
351662799119,2cyclictest3488210-21kworker/u16:3+events_unbound19:06:565
351662799118,2cyclictest3488210-21kworker/u16:3+flush-8:022:12:505
351662799118,2cyclictest3488210-21kworker/u16:3+flush-8:022:12:505
3516627991110,1cyclictest0-21swapper/523:19:115
3516627991110,1cyclictest0-21swapper/521:39:145
3516627991110,1cyclictest0-21swapper/521:30:155
3516627991110,1cyclictest0-21swapper/520:11:445
3516627991110,1cyclictest0-21swapper/520:11:445
3516627991110,1cyclictest0-21swapper/519:38:095
3516627991110,1cyclictest0-21swapper/519:22:245
3516627991110,1cyclictest0-21swapper/519:06:285
351662799110,11cyclictest0-21swapper/520:38:235
351662999109,1cyclictest0-21swapper/620:57:156
351662999109,1cyclictest0-21swapper/620:40:236
351662999109,1cyclictest0-21swapper/619:12:056
351662799109,1cyclictest0-21swapper/520:59:115
351662799109,1cyclictest0-21swapper/519:57:145
351662799109,1cyclictest0-21swapper/519:36:065
351662799107,2cyclictest4112155-21kworker/u16:1+flush-8:023:56:585
35166299998,1cyclictest0-21swapper/622:05:306
35166299998,1cyclictest0-21swapper/620:36:076
35166299998,1cyclictest0-21swapper/620:13:166
35166299998,1cyclictest0-21swapper/600:05:386
35166299997,2cyclictest4181857-21kworker/u16:2+events_unbound00:22:076
35166279998,1cyclictest0-21swapper/522:09:495
35166279993,5cyclictest6018-21gdbus22:43:085
35166299987,1cyclictest0-21swapper/620:21:276
35166299987,1cyclictest0-21swapper/619:50:336
35166279987,1cyclictest0-21swapper/522:20:235
35166279987,1cyclictest0-21swapper/519:42:255
35166299976,1cyclictest0-21swapper/623:30:016
35166299976,1cyclictest0-21swapper/620:05:136
35166299976,1cyclictest0-21swapper/619:31:006
35166299975,2cyclictest3966856-21kworker/u16:1+events_unbound23:04:366
35166299975,2cyclictest3488210-21kworker/u16:3+flush-8:021:36:486
35166279976,1cyclictest0-21swapper/521:51:415
35166279976,1cyclictest0-21swapper/500:08:225
35166279974,2cyclictest4112196-21kworker/u16:5+flush-8:023:42:175
35166299965,1cyclictest0-21swapper/619:54:396
35166299964,2cyclictest3488210-21kworker/u16:3+flush-8:019:57:196
35166279961,2cyclictest0-21swapper/519:15:105
35166279960,1cyclictest0-21swapper/523:02:165
35166279960,1cyclictest0-21swapper/521:42:565
35166279960,1cyclictest0-21swapper/520:29:245
35166279960,1cyclictest0-21swapper/520:22:155
35166299950,5cyclictest0-21swapper/620:47:046
35166299950,5cyclictest0-21swapper/620:42:246
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