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2026-09-04 - 08:11
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 376 highest latencies:
System rack5slot1.osadl.org (updated Fri Sep 04, 2026 00:44:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1689099230,9cyclictest10429-21sshd23:18:410
1689099226,8cyclictest30887-21sh21:59:080
1689099220,9cyclictest4543-21sh22:56:320
1689099220,10cyclictest6319-21sh00:10:260
1689099220,10cyclictest23643-21sh23:44:180
1689099216,7cyclictest12297-21sh23:00:450
1689099210,9cyclictest5118-21sh00:28:560
1689099210,9cyclictest24873-21sh00:03:070
1689099210,9cyclictest16411-21sh00:16:220
1689099210,10cyclictest22971-21sh23:07:040
1689099210,10cyclictest1507-21sh22:36:300
1689099210,10cyclictest12770-21sh21:48:520
325062200,0sleep00-21swapper/020:50:200
1689099205,7cyclictest31810-21sh23:12:070
1689099201,10cyclictest321-21systemd-journal21:10:170
1689099200,9cyclictest26003-21diskmemload00:21:550
1689099200,9cyclictest25460-21sh21:37:300
1689099200,9cyclictest2500-21sh00:09:020
1689099200,9cyclictest21759-21sh21:17:050
1689099200,9cyclictest21148-21timerandwakeup19:15:230
1689099200,9cyclictest12698-21sh22:25:080
1689099200,9cyclictest11716-21sh23:37:160
1689099200,8cyclictest2874-21unixbench_singl20:55:250
1689099200,8cyclictest23565-21diskmemload23:25:250
1689099200,12cyclictest24590-21sh22:31:070
1689099195,7cyclictest19571-21sh22:10:250
1689099194,7cyclictest28881-21runrttasks23:46:430
1689099194,6cyclictest31926-21gltestperf19:40:160
1689099191,8cyclictest12008-21rm00:32:330
1689099191,5cyclictest30008-21df_inode21:40:160
1689099191,10cyclictest24100-21latency_hist19:25:010
1689099191,10cyclictest24100-21latency_hist19:25:010
1689099190,9cyclictest8193-21ssh22:22:170
1689099190,9cyclictest774-21runrttasks21:08:200
1689099190,9cyclictest774-21runrttasks20:31:460
1689099190,9cyclictest774-21runrttasks19:39:380
1689099190,9cyclictest4884-21sh21:25:290
1689099190,9cyclictest15778-21sh23:21:100
1689099190,9cyclictest15778-21sh23:21:100
1689099190,9cyclictest15668-21sh23:57:540
1689099190,9cyclictest15668-21sh23:57:540
1689099190,9cyclictest12774-21kernelversion21:30:220
1689099190,9cyclictest11032-21sh22:41:570
1689099190,8cyclictest18548-21sh00:35:550
1689099190,7cyclictest32088-21sh23:30:270
1689099190,11cyclictest650-21date22:55:000
1689099190,10cyclictest18089-21runrttasks22:45:410
1689099190,10cyclictest14779-21chrt20:14:380
1689099190,10cyclictest103-1kworker/0:1H+kblockd22:17:330
1689099181,9cyclictest774-21runrttasks20:06:050
1689099180,9cyclictest774-21runrttasks20:47:290
1689099180,9cyclictest774-21runrttasks19:34:530
1689099180,9cyclictest6310-21fschecks_count19:55:160
1689099180,9cyclictest4241-21sh23:50:570
1689099180,9cyclictest18281-21latency20:20:180
1689099180,9cyclictest17087-21sh21:50:360
1689099180,9cyclictest1598-21fschecks_count19:45:150
1689099180,8cyclictest13450-21sh22:07:060
1689099180,7cyclictest5864-21cat19:55:010
1689099180,11cyclictest774-21runrttasks22:01:260
1689099180,11cyclictest17138-21latency_hist20:20:000
1689099180,10cyclictest774-21runrttasks21:21:480
16894991713,3cyclictest13940-21needreboot22:25:194
1689099174,6cyclictest20784-21netstat20:25:190
1689099170,9cyclictest774-21runrttasks21:02:280
1689099170,9cyclictest26357-21postgres19:29:320
1689099170,8cyclictest774-21runrttasks20:04:390
1689099170,10cyclictest103-1kworker/0:1H+kblockd20:42:140
1689199168,6cyclictest19461-21cron19:15:011
1689199168,6cyclictest19461-21cron19:15:011
1689199165,8cyclictest321-21systemd-journal20:47:241
1689499154,8cyclictest700-21gdbus19:50:224
1689499150,14cyclictest0-21swapper/419:40:014
1689299151,9cyclictest26688-21/usr/sbin/munin20:40:112
1689199153,8cyclictest30547-21latency21:40:201
1689199151,7cyclictest2516-21ssh00:09:031
1689199150,11cyclictest1718-21tail22:55:141
1689199150,11cyclictest11315-21ssh22:05:331
286942140,6sleep428715-21ssh21:20:424
1689499143,8cyclictest6634-21sed22:40:004
1689499143,8cyclictest321-21systemd-journal20:00:044
1689499143,8cyclictest13887-21cut00:15:164
1689499141,9cyclictest27663-21ssh23:28:224
1689499141,9cyclictest26921-21sh21:38:314
1689499141,9cyclictest24341-21diskmemload22:50:014
1689499141,9cyclictest1803-21expr20:55:164
16894991410,3cyclictest18675-21cut21:15:184
1689499140,10cyclictest7548-21chrt21:05:444
1689499140,10cyclictest3834-21chrt23:15:044
1689499140,10cyclictest2938-21ssh21:43:114
1689499140,10cyclictest2688-21ssh21:25:034
1689499140,10cyclictest23583-21unixbench_multi22:30:274
1689499140,10cyclictest22059-21/usr/sbin/munin20:30:204
1689499140,10cyclictest1950-21hddtemp_smartct19:45:174
1689499140,10cyclictest19365-21ssh00:36:284
1689499140,10cyclictest19142-21ssh00:00:084
1689499140,10cyclictest16047-21sh21:14:334
1689499140,10cyclictest13743-21sh00:33:494
1689499140,10cyclictest11590-21sh00:14:174
1689499140,10cyclictest10701-21sh22:41:434
1689499140,10cyclictest1035-21ssh23:31:104
1689399146,6cyclictest12109-21head20:05:263
1689399144,7cyclictest728-21lldpd21:08:233
1689399144,7cyclictest1926-21ssh23:31:463
1689399143,8cyclictest11349-21smartctl23:00:223
1689399141,9cyclictest7636-21runrttasks19:56:433
1689399141,9cyclictest711-21snmpd22:27:253
1689399141,9cyclictest5515-21runrttasks21:04:263
1689399141,9cyclictest3320-21ssh00:27:373
1689399141,9cyclictest31711-21ntp_kernel_pll_22:35:193
1689399141,9cyclictest11695-21runrttasks21:11:233
1689399141,9cyclictest10534-21sh23:36:243
16893991412,2cyclictest491ktimers/322:24:493
1689399140,10cyclictest9208-21ssh22:40:383
1689399140,10cyclictest774-21runrttasks23:59:333
1689399140,10cyclictest774-21runrttasks23:59:333
1689399140,10cyclictest774-21runrttasks23:53:313
1689399140,10cyclictest774-21runrttasks23:15:433
1689399140,10cyclictest678-21chrt20:52:533
1689399140,10cyclictest5710-21sh22:57:233
1689399140,10cyclictest5577-21cron19:55:013
1689399140,10cyclictest4799-21ssh21:44:323
1689399140,10cyclictest3170-21chrt19:48:363
1689399140,10cyclictest30379-21sed20:45:243
1689399140,10cyclictest29868-21ssh21:58:243
1689399140,10cyclictest29603-21sh22:16:003
1689399140,10cyclictest29483-21chrt23:47:083
1689399140,10cyclictest28501-21ssh00:23:453
1689399140,10cyclictest28470-21runrttasks20:42:103
1689399140,10cyclictest27610-21/usr/sbin/munin23:10:203
1689399140,10cyclictest26409-21/usr/sbin/munin21:20:153
1689399140,10cyclictest24176-21ssh23:25:513
1689399140,10cyclictest22274-21sh00:01:133
1689399140,10cyclictest20485-21sed23:05:233
1689399140,10cyclictest19790-21sh21:52:333
1689399140,10cyclictest19182-21sh00:18:223
1689399140,10cyclictest18978-21sh22:10:203
1689399140,10cyclictest16701-21sed20:15:253
1689399140,10cyclictest16564-21sh23:21:443
1689399140,10cyclictest16564-21sh23:21:443
1689399140,10cyclictest15267-21sh22:08:253
1689399140,10cyclictest15248-21ssh00:34:553
1689399140,10cyclictest12814-21/usr/sbin/munin20:10:163
1689399140,10cyclictest10333-21sh00:13:223
1689299147,5cyclictest31094-21grep22:35:152
1689299146,6cyclictest683-21dbus-daemon22:50:252
1689299143,8cyclictest7491-21cpuspeed23:35:152
1689299143,8cyclictest4499-21fschecks_count23:15:152
1689299141,9cyclictest9393-21sh21:46:282
1689299141,9cyclictest774-21runrttasks22:34:432
1689299141,9cyclictest28915-21ssh00:24:022
1689299141,9cyclictest26409-21/usr/sbin/munin21:20:142
1689299141,9cyclictest23231-21sh23:07:162
1689299141,9cyclictest15793-21runrttasks22:26:112
1689299141,9cyclictest14102-21ssh23:02:042
1689299141,10cyclictest7752-21ssh22:21:582
1689299141,10cyclictest21582-21runrttasks19:17:312
1689299140,10cyclictest7567-21taskset21:06:002
1689299140,10cyclictest4555-21sh23:51:112
1689299140,10cyclictest364-21ssh23:30:422
1689299140,10cyclictest31285-21chrt20:50:042
1689299140,10cyclictest30466-21rm21:40:192
1689299140,10cyclictest29185-21chrt23:46:562
1689299140,10cyclictest26709-21ssh22:15:052
1689299140,10cyclictest24400-21munin-node19:25:122
1689299140,10cyclictest24366-21/usr/sbin/munin20:35:182
1689299140,10cyclictest2420-21sh00:08:592
1689299140,10cyclictest23568-21ssh21:36:062
1689299140,10cyclictest22175-21sh00:38:312
1689299140,10cyclictest20871-21ssh23:42:172
1689299140,10cyclictest20416-21ssh22:10:442
1689299140,10cyclictest18032-21gltestperf20:20:162
1689299140,10cyclictest18024-21ssh22:45:392
1689299140,10cyclictest17308-21chrt21:15:022
1689299140,10cyclictest16059-21sh00:16:082
1689299140,10cyclictest15792-21chrt20:15:152
1689299140,10cyclictest15418-21latency_hist22:45:002
1689299140,10cyclictest14850-21sh21:50:102
1689299140,10cyclictest1386-21df_inode22:55:122
1689299140,10cyclictest12875-21wget20:10:122
1689299140,10cyclictest12787-21cat00:15:002
1689299140,10cyclictest12476-21fschecks_time21:30:202
1689299140,10cyclictest10823-21sh21:29:442
1689299140,10cyclictest10157-21runrttasks23:55:042
1689299140,10cyclictest10157-21runrttasks23:55:042
1689199141,9cyclictest7759-21runrttasks21:08:371
1689199141,9cyclictest7316-21wget00:30:141
1689199141,9cyclictest5575-21diskmemload00:10:181
1689199141,9cyclictest31284-21taskset20:50:031
1689199141,9cyclictest30385-21sh23:30:071
1689199141,9cyclictest26430-21ssh21:20:131
1689199141,9cyclictest20891-21ssh21:16:271
1689199141,9cyclictest16556-21sh22:26:431
1689199141,9cyclictest15491-21ssh00:15:421
1689199141,9cyclictest10335-21/usr/sbin/munin23:55:141
1689199141,9cyclictest10335-21/usr/sbin/munin23:55:141
1689199141,7cyclictest24350-21ssh00:20:421
1689199141,10cyclictest22560-21fschecks_time20:30:141
1689199141,10cyclictest1423-21sh22:36:271
1689199140,10cyclictest9958-21ssh22:23:341
1689199140,10cyclictest8759-21sh23:54:161
1689199140,10cyclictest774-21runrttasks23:06:271
1689199140,10cyclictest774-21runrttasks21:45:081
1689199140,10cyclictest711-21snmpd23:48:311
1689199140,10cyclictest6751-21sh23:16:021
1689199140,10cyclictest571-21sh23:12:591
1689199140,10cyclictest5451-21ssh22:02:431
1689199140,10cyclictest29952-21ssh22:52:541
1689199140,10cyclictest29320-21ssh21:58:001
1689199140,10cyclictest28470-21chrt19:31:561
1689199140,10cyclictest28343-21taskset20:40:251
1689199140,10cyclictest26316-21sh00:04:101
1689199140,10cyclictest24175-21sh23:25:511
1689199140,10cyclictest22092-21runrttasks19:20:081
1689199140,10cyclictest22092-21runrttasks19:20:081
1689199140,10cyclictest20466-21ssh21:35:031
1689199140,10cyclictest20015-21tr19:15:121
1689199140,10cyclictest19340-21sh23:41:101
1689199140,10cyclictest17806-21ssh22:10:011
1689199140,10cyclictest15953-21/usr/sbin/munin00:35:201
1689199140,10cyclictest15365-21ssh21:31:371
1689199140,10cyclictest15199-21taskset21:50:161
1689199140,10cyclictest13231-21ssh23:20:141
1689199140,10cyclictest13231-21ssh23:20:141
1689199140,10cyclictest12967-21ssh23:01:151
1689199140,10cyclictest12226-21taskset20:06:151
1689099140,10cyclictest19039-21grep19:10:240
1689099140,10cyclictest19039-21grep19:10:240
1689499139,3cyclictest12901-21aten2_r5power_p20:10:124
1689499132,8cyclictest711-21snmpd23:10:384
1689499131,9cyclictest8957-21ssh21:46:094
1689499131,9cyclictest18537-21/usr/sbin/munin22:10:174
1689499131,9cyclictest17810-21diskmemload23:22:384
1689499131,9cyclictest17810-21diskmemload23:22:384
1689499130,9cyclictest8939-21ssh22:05:014
1689499130,9cyclictest5887-21/usr/sbin/munin19:55:164
1689499130,9cyclictest4614-21ntpq21:00:204
1689499130,9cyclictest32649-21/usr/sbin/munin22:00:264
1689499130,9cyclictest31654-21diskstats20:50:134
1689499130,9cyclictest31332-21/usr/sbin/munin19:40:184
1689499130,9cyclictest30786-21/usr/sbin/munin00:25:204
1689499130,9cyclictest28082-21sed19:30:254
1689499130,9cyclictest28002-21/usr/sbin/munin00:05:154
1689499130,9cyclictest27148-21fschecks_count20:40:144
1689499130,9cyclictest26849-21/usr/sbin/munin22:15:194
1689499130,9cyclictest25679-21switchtime20:35:244
1689499130,9cyclictest24758-21df_inode19:25:134
1689499130,9cyclictest23806-21aten2_r5power_c21:55:134
1689499130,9cyclictest22098-21/usr/sbin/munin19:20:144
1689499130,9cyclictest22098-21/usr/sbin/munin19:20:144
1689499130,9cyclictest20028-21cut19:15:124
1689499130,9cyclictest19755-21runrttasks20:25:114
1689499130,9cyclictest19115-21chrt20:20:314
1689499130,9cyclictest18978-21ssh21:51:584
1689499130,9cyclictest18482-21ssh23:05:014
1689499130,9cyclictest17465-21/usr/sbin/munin19:10:124
1689499130,9cyclictest17465-21/usr/sbin/munin19:10:124
1689499130,9cyclictest1720-21cron20:17:004
1689499130,9cyclictest16524-21ssh21:32:264
1689499130,9cyclictest15751-21/usr/sbin/munin22:45:214
1689499130,9cyclictest14669-21sh23:02:284
1689499130,9cyclictest1326-21ssh23:50:024
1689499130,9cyclictest11507-21cut23:55:194
1689499130,9cyclictest11507-21cut23:55:194
1689499130,9cyclictest11317-21ssh23:36:584
1689499130,10cyclictest3498-21sh22:20:044
1689499130,10cyclictest28330-21ssh23:46:194
1689499130,10cyclictest26848-21ssh00:22:324
1689499130,10cyclictest1966-21expr22:55:164
1689499130,10cyclictest16045-21cmp23:40:014
1689399131,9cyclictest4193-21ssh21:25:223
1689399131,8cyclictest8209-21/usr/sbin/munin20:00:153
1689399130,9cyclictest5805-21sh21:45:023
1689399130,9cyclictest29006-21/usr/sbin/munin19:35:173
1689399130,9cyclictest27588-21runrttasks22:51:123
1689399130,9cyclictest23902-21chrt20:32:553
1689399130,9cyclictest2272-21ssh22:00:263
1689399130,9cyclictest22098-21/usr/sbin/munin19:20:163
1689399130,9cyclictest22098-21/usr/sbin/munin19:20:163
1689399130,9cyclictest21434-21chrt20:25:433
1689399130,9cyclictest20375-21grep19:15:133
1689399130,9cyclictest19408-21chrt20:24:313
1689399130,9cyclictest19356-21diskmemload00:36:283
1689399130,9cyclictest18232-21sh22:45:483
1689399130,9cyclictest1181-21/usr/sbin/munin20:55:153
1689399130,9cyclictest11567-21diskmemload21:30:033
1689399130,9cyclictest1095-21latency_hist19:45:013
1689399130,10cyclictest29708-21wc00:05:243
1689399130,10cyclictest23463-21sed22:30:263
1689399130,10cyclictest22364-21ssh21:17:323
1689399130,10cyclictest20516-21sh21:35:063
1689399130,10cyclictest18393-21seq23:40:293
1689399130,10cyclictest17828-21diskstats19:10:133
1689399130,10cyclictest17828-21diskstats19:10:133
1689299139,3cyclictest19474-21cpuspeed_turbos00:00:132
1689299131,9cyclictest8486-21aten2_r5power_e21:10:142
1689299130,9cyclictest9147-21rm22:05:102
1689299130,9cyclictest7992-21idleruntime00:30:192
1689299130,9cyclictest774-21runrttasks21:56:322
1689299130,9cyclictest751-21postgres20:04:332
1689299130,9cyclictest5890-21runrttasks19:55:132
1689299130,9cyclictest3586-21/usr/sbin/munin19:50:202
1689299130,9cyclictest3249-21latency_hist21:00:002
1689299130,9cyclictest32261-21cat19:40:202
1689299130,9cyclictest30618-21ssh00:25:042
1689299130,9cyclictest29117-21cpu20:45:132
1689299130,9cyclictest29006-21/usr/sbin/munin19:35:122
1689299130,9cyclictest27581-21ssh23:10:132
1689299130,9cyclictest23944-21chrt19:23:012
1689299130,9cyclictest23944-21chrt19:23:012
1689299130,9cyclictest22055-21chrt20:30:072
1689299130,9cyclictest19793-21grep20:25:132
1689299130,9cyclictest17465-21/usr/sbin/munin19:10:182
1689299130,9cyclictest17465-21/usr/sbin/munin19:10:182
1689299130,9cyclictest12835-21/usr/sbin/munin23:20:152
1689299130,9cyclictest12835-21/usr/sbin/munin23:20:152
1689299130,9cyclictest10506-21runrttasks20:05:072
1689299130,10cyclictest587-21sh22:00:132
1689299130,10cyclictest3569-21/usr/sbin/munin21:00:172
1689299130,10cyclictest24944-21ssh23:26:242
1689299130,10cyclictest1206-21runrttasks19:45:022
1689199131,9cyclictest6877-21sh22:40:071
1689199130,9cyclictest9948-21switchtime21:10:251
1689199130,9cyclictest8214-21apt-get20:00:121
1689199130,9cyclictest5887-21/usr/sbin/munin19:55:211
1689199130,9cyclictest31589-21cpuspeed_turbos19:40:141
1689199130,9cyclictest30638-21sh00:25:051
1689199130,9cyclictest2719-21sh21:25:041
1689199130,9cyclictest26597-21sh22:15:011
1689199130,9cyclictest24360-21runrttasks20:35:071
1689199130,9cyclictest21514-21sh22:30:051
1689199130,9cyclictest2001-21kernelversion20:55:171
1689199130,9cyclictest19760-21apt20:25:121
1689199130,9cyclictest18023-21grep20:20:161
1689199130,9cyclictest17962-21sh22:45:361
1689199130,9cyclictest15009-21latency_hist20:15:001
1689199130,9cyclictest1220-21/usr/sbin/munin19:45:251
1689199130,10cyclictest5298-21chrt21:01:281
1689199130,10cyclictest4239-21sed19:50:171
1689199130,10cyclictest10845-21ssh23:36:391
1689099131,9cyclictest26024-21taskset20:35:300
1689499120,9cyclictest28991-21/usr/sbin/munin20:45:144
1689499120,9cyclictest17115-21latency_hist19:10:014
1689499120,9cyclictest11280-21kernelversion20:05:194
1689399120,9cyclictest711-21snmpd19:33:493
1689399120,9cyclictest26316-21taskset19:28:573
1689399120,9cyclictest24366-21/usr/sbin/munin20:35:133
1689399120,9cyclictest17048-21cmp19:10:013
1689299120,9cyclictest28235-21grep19:30:262
1689199124,6cyclictest29465-21tune2fs19:35:131
1689199120,9cyclictest25768-21timerandwakeup19:25:251
1689199120,9cyclictest15205-21wget20:15:131
1689099124,6cyclictest16897-21date19:10:010
322682110,1sleep50-21swapper/522:17:565
186462110,1sleep50-21swapper/523:40:415
1689299110,8cyclictest17314-21latency_hist19:10:012
99322100,1sleep50-21swapper/500:13:055
1689199100,8cyclictest17209-21cat19:10:011
19561290,0sleep50-21swapper/500:36:385
19204290,0sleep50-21swapper/500:18:235
12585290,7sleep50-21swapper/522:43:075
28845280,0sleep50-21swapper/500:23:595
26140270,0sleep50-21swapper/520:37:065
5349260,1sleep50-21swapper/521:44:565
4672263,1sleep50-21swapper/500:28:375
26175260,1sleep50-21swapper/522:14:565
23913260,1sleep50-21swapper/522:49:565
30932250,3sleep50-21swapper/521:22:205
15187250,3sleep50-21swapper/522:25:455
12101250,1sleep50-21swapper/523:19:555
9761240,1sleep50-21swapper/523:55:015
9761240,1sleep50-21swapper/523:55:015
5124243,0sleep50-21swapper/522:39:065
3437240,1sleep50-21swapper/523:15:005
28698240,1sleep50-21swapper/519:35:015
28681240,1sleep50-21swapper/520:45:015
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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