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2026-06-12 - 01:59
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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 the highest latencies:
System rack0slot2.osadl.org (updated Fri Jun 12, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
191920025848,7sleep40-21swapper/419:01:554
191939125443,8sleep50-21swapper/519:04:375
1919803995250,2cyclictest2393474-21kworker/u16:1+flush-8:023:16:345
1919803994441,2cyclictest2144659-21kworker/u16:4+events_unbound22:11:105
19192122442,36sleep70-21swapper/719:02:067
1919803994139,2cyclictest2178307-21kworker/u16:2+events_unbound21:21:105
1919799994139,2cyclictest2144659-21kworker/u16:4+flush-8:022:26:084
1919803994038,2cyclictest2144659-21kworker/u16:4+flush-8:021:46:375
1919808993934,4cyclictest2395846-21latency_hist22:46:087
1919803993937,2cyclictest2393474-21kworker/u16:1+events_unbound23:11:105
1919803993735,2cyclictest2565590-21kworker/u16:5+flush-8:000:12:185
1919803993735,2cyclictest2117229-21kworker/u16:3+events_unbound20:46:335
1919803993630,5cyclictest2393474-21kworker/u16:1+flush-8:000:01:075
1919808993533,1cyclictest2154121-21diskmemload21:21:347
1919803993533,2cyclictest2478587-21kworker/u16:0+events_unbound00:07:335
1919803993533,2cyclictest2408040-21kworker/u16:3+events_unbound23:33:175
1919803993533,2cyclictest1187982-21kworker/u16:0+flush-8:021:41:065
1919808993332,0cyclictest0-21swapper/719:51:227
1919803993331,2cyclictest2309975-21kworker/u16:1+flush-8:022:25:185
191928723323,7sleep60-21swapper/619:03:106
1919808993227,4cyclictest2299112-21latency_hist22:06:087
1919803993230,2cyclictest2408040-21kworker/u16:3+flush-8:023:08:185
1919803993230,2cyclictest2261538-21kworker/u16:2+events_unbound22:20:195
1919803993129,2cyclictest2408040-21kworker/u16:3+events_unbound22:53:465
1919803993128,2cyclictest2408040-21kworker/u16:3+flush-8:023:01:185
1919803993128,2cyclictest2261538-21kworker/u16:2+events_unbound22:01:185
1919808993029,0cyclictest0-21swapper/719:06:317
1919803993028,2cyclictest2651057-21kworker/u16:0+events_unbound00:31:415
1919803993028,2cyclictest2393474-21kworker/u16:1+events_unbound23:39:265
1919803993028,2cyclictest2178307-21kworker/u16:2+flush-8:021:16:375
1919803993028,2cyclictest2178307-21kworker/u16:2+flush-8:021:16:375
1919803993028,2cyclictest2144659-21kworker/u16:4+flush-8:022:32:175
1919803992927,2cyclictest2541103-21kworker/u16:4+flush-8:023:51:135
1919803992927,2cyclictest2408040-21kworker/u16:3+flush-8:023:46:425
1919803992927,2cyclictest2393474-21kworker/u16:1+events_unbound00:30:265
1919803992927,2cyclictest2372000-21kworker/u16:2+flush-8:022:45:265
1919803992927,2cyclictest2190820-21kworker/u16:1+events_unbound21:53:075
23938262280,0chrt0-21swapper/422:42:234
1919808992827,0cyclictest0-21swapper/723:26:367
1919808992823,4cyclictest2134864-21latency_hist20:56:087
1919803992826,2cyclictest2613449-21kworker/u16:4+events_unbound00:20:345
1919803992826,2cyclictest2478587-21kworker/u16:0+events_unbound00:03:175
1919803992826,2cyclictest2190821-21kworker/u16:3+events_unbound21:34:105
1919803992826,2cyclictest2144659-21kworker/u16:4+events_unbound21:28:105
1919808992725,1cyclictest0-21swapper/722:36:307
1919808992721,5cyclictest2625454-21latency_hist00:21:087
1919803992725,2cyclictest2372000-21kworker/u16:2+flush-8:022:38:265
1919807992624,2cyclictest2393474-21kworker/u16:1+flush-8:023:11:346
1919803992624,2cyclictest2565590-21kworker/u16:5+flush-8:000:22:225
1919803992624,2cyclictest2309975-21kworker/u16:1+events_unbound22:29:055
1919803992624,2cyclictest2275000-21kworker/u16:0+flush-8:022:06:425
1919803992623,2cyclictest1187982-21kworker/u16:0+events_unbound19:16:105
1919803992523,2cyclictest2444674-21kworker/u16:2+events_unbound23:23:345
1919803992523,2cyclictest2408040-21kworker/u16:3+flush-8:023:26:545
1919803992523,2cyclictest1187982-21kworker/u16:0+events_unbound21:45:055
1919808992422,1cyclictest0-21swapper/721:41:187
1919808992422,1cyclictest0-21swapper/719:56:377
1919803992422,2cyclictest2393474-21kworker/u16:1+events_unbound22:51:065
1919803992422,2cyclictest2371999-21kworker/u16:0+events_unbound22:57:585
1919803992422,2cyclictest2190820-21kworker/u16:1+events_unbound21:59:545
1919803992422,2cyclictest2190820-21kworker/u16:1+events_unbound21:59:545
1919803992422,2cyclictest2134856-21kworker/u16:2+events_unbound20:56:295
1919803992422,2cyclictest2086491-21kworker/u16:1+events_unbound21:10:155
1919803992422,2cyclictest2010131-21kworker/u16:2+flush-8:020:31:385
1919803992421,2cyclictest2144659-21kworker/u16:4+flush-8:021:11:095
21752992220,1chrt2175300-21/usr/sbin/munin21:11:387
1919808992221,0cyclictest0-21swapper/723:21:217
1919808992218,3cyclictest1025-21runrttasks00:26:327
1919808992217,4cyclictest2528885-21latency_hist23:41:087
1919803992220,2cyclictest2444674-21kworker/u16:2+flush-8:023:42:215
19318342210,1chrt1931838-21kthreadcore19:11:117
1919808992120,0cyclictest0-21swapper/722:51:237
1919808992120,0cyclictest0-21swapper/722:11:327
1919808992019,0cyclictest0-21swapper/723:31:377
1919808992019,0cyclictest0-21swapper/720:31:327
1919807992018,2cyclictest1981447-21kworker/u16:2+events_unbound19:36:236
1919803992018,2cyclictest1961474-21kworker/u16:1+events_unbound19:51:365
1919803992018,2cyclictest1846120-21kworker/u16:3+flush-8:019:13:185
1919803992018,2cyclictest1187982-21kworker/u16:0+flush-8:020:24:185
1919808991918,0cyclictest0-21swapper/719:36:307
1919803991917,2cyclictest1187982-21kworker/u16:0+events_unbound20:36:215
1919803991917,2cyclictest1187982-21kworker/u16:0+events_unbound20:36:215
1919799991917,2cyclictest2393474-21kworker/u16:1+events_unbound23:41:414
1919808991817,0cyclictest0-21swapper/722:31:207
1919808991816,1cyclictest2429666-21ssh22:56:377
1919808991815,2cyclictest2358444-21ssh22:29:037
191980899180,17cyclictest2067584-21latency_hist20:21:097
1919807991816,2cyclictest2393474-21kworker/u16:1+flush-8:022:56:346
1919803991816,2cyclictest2019654-21kworker/u16:4+events_unbound20:18:185
1919799991815,3cyclictest1881722-21kworker/u16:2+flush-8:019:11:134
1919808991716,0cyclictest0-21swapper/723:51:347
1919808991716,0cyclictest0-21swapper/723:01:317
1919808991716,0cyclictest0-21swapper/720:11:357
1919808991716,0cyclictest0-21swapper/719:31:307
1919808991716,0cyclictest0-21swapper/719:26:347
1919808991715,1cyclictest0-21swapper/722:46:587
1919808991715,1cyclictest0-21swapper/700:06:347
1919808991714,2cyclictest2308538-21ssh22:06:367
1919803991715,2cyclictest1846120-21kworker/u16:3+events_unbound19:26:195
1919808991615,0cyclictest0-21swapper/723:47:027
1919808991615,0cyclictest0-21swapper/722:16:317
1919808991614,1cyclictest2605360-21cut00:11:277
1919808991614,1cyclictest0-21swapper/720:41:207
1919808991613,2cyclictest2577158-21ssh00:00:577
1919808991613,2cyclictest0-21swapper/721:16:337
1919808991613,2cyclictest0-21swapper/721:16:337
1919808991611,4cyclictest2347439-21latency_hist22:26:087
191980799163,13cyclictest86-21ksoftirqd/600:07:536
191980799160,15cyclictest2549977-21ntpq23:46:316
1919803991614,2cyclictest2019654-21kworker/u16:4+flush-8:020:01:315
1919803991614,2cyclictest2019654-21kworker/u16:4+events_unbound20:11:285
1919803991614,2cyclictest1846120-21kworker/u16:3+flush-8:019:35:195
1919803991614,2cyclictest1187982-21kworker/u16:0+flush-8:019:46:185
1919803991614,2cyclictest1187982-21kworker/u16:0+events_unbound19:08:195
1919808991514,0cyclictest0-21swapper/719:16:387
1919808991513,1cyclictest0-21swapper/720:21:197
191980899150,14cyclictest2214563-21latency_hist21:31:087
1919803991513,2cyclictest2086491-21kworker/u16:1+flush-8:020:51:315
191979999150,14cyclictest0-21swapper/400:21:204
191980899149,4cyclictest2238767-21latency_hist21:41:097
1919808991412,1cyclictest2154121-21diskmemload00:04:137
1919808991412,1cyclictest0-21swapper/720:26:317
191980899140,1cyclictest0-21swapper/719:41:327
191980799149,4cyclictest2638820-21cat00:26:226
1919807991413,1cyclictest0-21swapper/622:50:336
1919807991413,1cyclictest0-21swapper/622:36:506
1919807991413,1cyclictest0-21swapper/621:44:016
1919807991413,1cyclictest0-21swapper/600:18:036
191980799140,1cyclictest0-21swapper/621:34:056
1919799991413,1cyclictest0-21swapper/422:56:034
1919799991413,1cyclictest0-21swapper/421:29:204
191980899139,2cyclictest0-21swapper/700:21:217
191980899137,5cyclictest6382-21gvfs-afc-volume21:06:237
191980899135,7cyclictest6063-21gdbus00:35:547
1919808991313,0cyclictest0-21swapper/723:13:467
1919808991311,1cyclictest0-21swapper/723:16:257
191980799138,4cyclictest2530163-21cat23:41:236
1919807991312,1cyclictest0-21swapper/623:17:496
1919807991312,1cyclictest0-21swapper/622:23:076
1919807991312,1cyclictest0-21swapper/621:24:376
1919807991312,1cyclictest0-21swapper/621:15:476
1919807991312,1cyclictest0-21swapper/621:06:396
1919807991311,2cyclictest2144659-21kworker/u16:4+flush-8:021:46:346
191980799130,13cyclictest0-21swapper/622:03:346
1919803991311,2cyclictest2086491-21kworker/u16:1+events_unbound20:28:185
1919803991311,2cyclictest2010131-21kworker/u16:2+flush-8:020:41:295
1919803991311,2cyclictest2010131-21kworker/u16:2+events_unbound20:00:185
1919803991311,2cyclictest1961474-21kworker/u16:1+flush-8:019:43:315
1919799991312,1cyclictest0-21swapper/422:40:364
1919799991312,1cyclictest0-21swapper/422:13:194
1919799991312,1cyclictest0-21swapper/422:01:584
191979999130,13cyclictest0-21swapper/421:19:524
191979999130,13cyclictest0-21swapper/421:19:524
191979999130,13cyclictest0-21swapper/400:06:314
191979999130,0cyclictest0-21swapper/421:40:324
191980899129,2cyclictest1234-21snmpd20:05:307
191980899129,2cyclictest1234-21snmpd19:24:297
191980899128,3cyclictest5729-21ssh-agent20:56:287
191980899126,5cyclictest6382-21gvfs-afc-volume21:52:427
1919808991212,0cyclictest0-21swapper/721:32:237
1919808991210,1cyclictest0-21swapper/721:46:327
191980899120,11cyclictest2106025-21latency_hist20:41:087
191980899120,11cyclictest2106025-21latency_hist20:41:087
191980799120,12cyclictest0-21swapper/619:26:046
191980799120,11cyclictest2634486-21ntpq00:21:306
1919803991211,1cyclictest0-21swapper/519:21:325
1919799991211,1cyclictest0-21swapper/423:41:084
1919799991211,1cyclictest0-21swapper/400:33:384
191980899119,1cyclictest2454507-21ssh23:07:467
191980899117,3cyclictest1234-21snmpd21:56:447
191980899117,3cyclictest1234-21snmpd21:56:447
191980899117,3cyclictest1234-21snmpd20:10:397
191980899115,5cyclictest6382-21gvfs-afc-volume23:41:407
191980899115,5cyclictest6382-21gvfs-afc-volume21:01:347
1919807991110,1cyclictest0-21swapper/622:13:206
1919807991110,1cyclictest0-21swapper/621:53:386
1919807991110,1cyclictest0-21swapper/620:15:056
1919807991110,1cyclictest0-21swapper/620:03:256
1919807991110,1cyclictest0-21swapper/619:51:366
1919807991110,1cyclictest0-21swapper/619:12:306
191980799110,10cyclictest2026012-21grep19:56:286
191980399119,2cyclictest2086491-21kworker/u16:1+events_unbound21:03:315
191980399119,2cyclictest1846120-21kworker/u16:3+flush-8:019:36:365
191979999119,2cyclictest2309975-21kworker/u16:1+flush-8:022:16:354
1919799991110,1cyclictest0-21swapper/421:09:564
1919799991110,1cyclictest0-21swapper/420:57:014
1919799991110,1cyclictest0-21swapper/420:44:244
1919799991110,1cyclictest0-21swapper/419:52:224
1919799991110,1cyclictest0-21swapper/419:40:044
191979999110,1cyclictest0-21swapper/420:17:074
191979999110,10cyclictest0-21swapper/423:01:314
191979999110,0cyclictest0-21swapper/419:26:034
191980899105,4cyclictest2117665-21grep20:46:257
191980799109,1cyclictest0-21swapper/620:53:526
191980799109,1cyclictest0-21swapper/620:41:166
191980799109,1cyclictest0-21swapper/620:27:426
191980799108,2cyclictest86-21ksoftirqd/623:26:246
191980799108,2cyclictest86-21ksoftirqd/600:31:406
191980799108,2cyclictest86-21ksoftirqd/600:02:586
191980799100,9cyclictest2568296-21kthreadcore23:56:256
191980799100,9cyclictest2385083-21sed22:41:246
191980799100,9cyclictest2091275-21kthreadcore20:31:266
191980799100,9cyclictest2061083-21cut20:16:256
191980799100,9cyclictest1946146-21tr19:16:266
191980799100,3cyclictest2362943-21cut22:31:266
191980799100,3cyclictest1967033-21cut19:26:276
191980799100,2cyclictest2416982-21ntpq22:51:336
191980799100,2cyclictest2211467-21ntpq21:26:316
191980399108,2cyclictest2010131-21kworker/u16:2+flush-8:020:06:295
191979999107,2cyclictest5827-21JS15:59:264
191979999103,2cyclictest20089782grep19:46:314
191979999100,1cyclictest0-21swapper/423:31:354
19198089998,0cyclictest0-21swapper/719:46:237
19198079998,1cyclictest0-21swapper/600:11:596
19198079997,2cyclictest86-21ksoftirqd/623:31:216
19198079997,2cyclictest86-21ksoftirqd/623:07:426
19198079997,2cyclictest86-21ksoftirqd/622:07:596
19198079997,2cyclictest86-21ksoftirqd/619:46:286
19198079995,3cyclictest1977622-21kthreadcore19:31:286
19198079990,8cyclictest2555554-21kthreadcore23:51:256
19198079990,8cyclictest2482850-21grep23:21:256
19198079990,8cyclictest2436123-21cut23:01:266
19198079990,8cyclictest2349572-21kthreadcore22:26:266
19198079990,8cyclictest2328983-21cut22:16:296
19198079990,8cyclictest2234098-21kthreadcore21:36:286
19198079990,8cyclictest2096805-21/usr/sbin/munin20:36:246
19198079990,8cyclictest2096805-21/usr/sbin/munin20:36:246
19198079990,8cyclictest0-21swapper/620:56:206
19198079990,8cyclictest0-21swapper/620:21:256
19198079990,4cyclictest2278572-21cut21:56:276
19198079990,4cyclictest2278572-21cut21:56:276
19198079990,3cyclictest2521808-21cut23:36:286
19198079990,2cyclictest2145171-21expr21:01:186
19197999998,1cyclictest0-21swapper/420:04:504
19197999997,1cyclictest0-21swapper/423:26:194
19197999997,1cyclictest0-21swapper/400:16:274
19197999996,2cyclictest2284221-21timerandwakeup21:56:374
19197999996,2cyclictest2284221-21timerandwakeup21:56:374
19197999996,2cyclictest0-21swapper/419:31:204
19197999994,4cyclictest2481226-21expr23:21:194
19197999994,4cyclictest2461004-21kthreadcore23:11:274
19197999994,4cyclictest2133761-21missed_timers20:51:294
19197999994,4cyclictest2050706-21cut20:11:254
19198079985,2cyclictest2086491-21kworker/u16:1+flush-8:020:47:066
19198079985,2cyclictest1961474-21kworker/u16:1+flush-8:019:41:346
19198079985,2cyclictest1919999-21/usr/sbin/munin19:06:286
19198079984,3cyclictest2178829-21cat21:16:206
19198079984,3cyclictest2178829-21cat21:16:206
19198079980,7cyclictest2041068-21cut20:06:256
19197999986,1cyclictest0-21swapper/423:06:274
19197999986,1cyclictest0-21swapper/421:31:254
19197999986,1cyclictest0-21swapper/420:36:264
19197999986,1cyclictest0-21swapper/420:36:264
19197999986,1cyclictest0-21swapper/420:21:244
19197999986,1cyclictest0-21swapper/420:06:294
19197999986,1cyclictest0-21swapper/400:26:244
19197999985,2cyclictest0-21swapper/422:31:274
19197999985,2cyclictest0-21swapper/421:41:234
19197999985,2cyclictest0-21swapper/421:01:334
19197999985,2cyclictest0-21swapper/420:26:294
19197999985,2cyclictest0-21swapper/419:16:264
19197999984,3cyclictest2421044-21df22:56:204
19197999984,3cyclictest2397177-21iostat_ios22:46:254
19197999984,3cyclictest2167689-21irqcore21:11:264
19197999983,4cyclictest2608516-21cut00:11:294
19197999983,4cyclictest2567994-21kthreadcore23:56:254
19197999983,4cyclictest2554403-21interrupts23:51:234
19197999983,4cyclictest2542326-21irqcore23:46:234
19197999983,4cyclictest2355881-21kthreadcore22:26:294
19197999983,4cyclictest2301356-21cut22:06:254
19197999983,4cyclictest2197820-21kthreadcore21:21:294
19197999983,4cyclictest2088911-21cat20:31:254
19197999983,4cyclictest2020254-21expr19:56:214
19197999983,4cyclictest1992818-21kthreadcore19:41:264
19197999980,4cyclictest2581851-21kthreadcore00:01:274
19197999976,1cyclictest0-21swapper/420:46:204
19197999975,1cyclictest0-21swapper/419:06:214
19197999972,4cyclictest2251352-21cat21:46:204
19197999962,3cyclictest2469002-21cpuspeed_turbos23:16:194
19197999962,3cyclictest2263560-21expr21:51:194
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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