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2026-05-04 - 07:15
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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 Mon May 04, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21236052930,2sleep30-21swapper/322:10:093
1879644993024,5cyclictest1969721-21grep20:20:010
187964499295,5cyclictest2336670-21cat00:30:010
1879644992918,9cyclictest1290-21dbus-daemon20:10:010
1879645992822,2cyclictest17350irq/127-ahci[0000:00:17.0]23:45:001
1879644992812,11cyclictest0-21swapper/021:25:350
1879644992811,13cyclictest2310891-21kthreadcore00:10:330
1879644992810,13cyclictest0-21swapper/022:10:020
1879645992724,2cyclictest0-21swapper/122:15:011
1879644992716,4cyclictest0-21swapper/021:15:280
1879644992713,9cyclictest0-21swapper/023:10:010
1879644992713,8cyclictest2163164-21kthreadcore22:35:330
1879644992712,10cyclictest0-21swapper/021:35:380
187964499269,8cyclictest2026569-21tail21:05:260
187964499269,8cyclictest2026569-21tail21:05:260
187964499269,8cyclictest0-21swapper/023:15:280
1879644992613,8cyclictest0-21swapper/021:50:020
1879644992610,9cyclictest0-21swapper/022:15:310
187964499260,2cyclictest241rcuc/022:40:240
1879645992522,2cyclictest1900754-21awk19:25:011
187964499259,11cyclictest2153655-21kworker/u16:2-rpciod22:50:230
187964499258,2cyclictest0-21swapper/021:45:010
187964499258,12cyclictest0-21swapper/023:00:230
187964499258,12cyclictest0-21swapper/000:40:000
1879644992511,8cyclictest2055111-21latency_hist21:25:010
1879644992510,7cyclictest2215195-21cstates23:10:250
1879645992415,4cyclictest134050irq/121-eno123:05:011
187964499249,8cyclictest1969997-21tail20:20:240
187964499248,5cyclictest2001584-21tail20:45:250
1879644992419,4cyclictest1938341-21systemd-run19:55:000
1879644992418,5cyclictest2290636-21sh00:00:010
1879644992410,9cyclictest0-21swapper/023:24:210
187964499239,9cyclictest0-21swapper/022:50:010
187964499238,5cyclictest0-21swapper/021:10:370
187964499238,4cyclictest2159003-21grep22:30:340
187964499238,10cyclictest0-21swapper/000:20:240
187964499237,9cyclictest0-21swapper/022:10:300
187964499237,6cyclictest0-21swapper/019:45:240
187964499237,4cyclictest1994691-21munin-run20:40:020
187964499236,5cyclictest0-21swapper/000:01:160
187964499236,2cyclictest0-21swapper/023:33:160
187964499235,6cyclictest2020311-21aten_repower_en21:00:230
187964499232,16cyclictest0-21swapper/019:11:220
187964499232,16cyclictest0-21swapper/019:11:220
187964499231,8cyclictest2268000-21apt-get23:45:230
1879644992318,4cyclictest1913248-21latency_hist19:35:000
187964499231,5cyclictest1950789-21cron20:05:000
1879644992311,2cyclictest0-21swapper/022:00:310
1879646992219,1cyclictest0-21swapper/200:20:012
187964599226,5cyclictest2073512-21kthreadcore21:35:331
1879645992217,3cyclictest0-21swapper/120:45:021
187964499229,12cyclictest2242878-21sendmail_mailst23:25:350
187964499226,5cyclictest0-21swapper/023:40:350
187964499226,5cyclictest0-21swapper/021:55:020
187964499225,6cyclictest0-21swapper/022:57:010
187964499225,2cyclictest0-21swapper/000:33:270
383433398210,2rtkit-daemon3851703-21mta-sts-daemon20:26:360
1879646992118,1cyclictest0-21swapper/223:55:022
1879646992118,1cyclictest0-21swapper/200:22:442
1879645992118,2cyclictest2176827-21systemd22:45:011
1879645992115,2cyclictest17350irq/127-ahci[0000:00:17.0]21:15:001
1879645992113,1cyclictest383433398rtkit-daemon19:43:041
1879645992111,2cyclictest134050irq/121-eno121:55:241
187964499215,5cyclictest0-21swapper/021:32:190
187964499214,6cyclictest0-21swapper/022:30:000
187964499213,7cyclictest0-21swapper/019:57:210
187964499211,9cyclictest1-21systemd19:25:010
187964499211,8cyclictest2299201-21df00:05:260
187964499211,5cyclictest2275744-21wc23:50:250
1879644992115,5cyclictest2319004-21proc_pri00:15:340
187964499211,3cyclictest2008431-21hddtemp_smartct20:50:280
187964499210,9cyclictest1919851-21/usr/sbin/munin19:40:350
1879646992016,1cyclictest0-21swapper/200:14:552
187964599208,2cyclictest134050irq/121-eno123:45:081
1879645992017,2cyclictest2290649-1atop00:00:011
1879645992017,2cyclictest1879642-21cyclictest23:55:021
1879645992017,2cyclictest0-21swapper/119:15:011
1879645992017,2cyclictest0-21swapper/119:15:011
1879645992010,1cyclictest134050irq/121-eno122:20:221
1879644992013,5cyclictest0-21swapper/019:10:010
1879646991916,1cyclictest0-21swapper/223:10:362
1879646991916,1cyclictest0-21swapper/223:10:002
1879646991916,1cyclictest0-21swapper/221:55:012
1879646991916,1cyclictest0-21swapper/200:35:312
1879646991916,1cyclictest0-21swapper/200:03:562
1879646991912,3cyclictest0-21swapper/223:15:242
187964699190,11cyclictest0-21swapper/220:50:012
187964599191,7cyclictest0-21swapper/121:45:231
1879645991916,2cyclictest2026145-21latency_hist21:05:011
1879645991916,2cyclictest1996-21runrttasks19:25:301
1879645991915,3cyclictest2227908-21unixbench-2d23:15:381
1879645991915,3cyclictest2048345-21cpuspeed_turbos21:20:241
1879645991915,3cyclictest2027801-21kthreadcore21:05:331
1879645991915,3cyclictest2027801-21kthreadcore21:05:331
1879645991915,2cyclictest2214573-21systemd-run23:10:011
1879645991913,2cyclictest134050irq/121-eno121:25:231
1879644991913,5cyclictest2255716-21sed23:35:320
1879644991913,5cyclictest2141997-21kthreadcore22:20:290
1879644991913,5cyclictest1907032-21latency_hist19:30:000
1879644991911,3cyclictest1961256-21kthreadcore20:10:320
187964499190,8cyclictest1889068-21diskstats19:15:260
2649091180,2phc2sys0-21swapper/323:15:533
1879646991815,1cyclictest0-21swapper/222:37:472
1879646991815,1cyclictest0-21swapper/221:15:312
187964599189,1cyclictest134050irq/121-eno122:49:031
187964599188,1cyclictest383433398rtkit-daemon20:00:111
187964599185,9cyclictest2131266-21aten2.4-expect22:15:231
187964599184,6cyclictest2235727-21kworker/u16:3+rpciod00:35:051
187964599183,6cyclictest2314424-21fschecks_count00:15:261
1879645991815,2cyclictest3880722-21gmain22:10:011
1879645991815,2cyclictest2250809-21grep23:30:371
1879645991815,2cyclictest2217760-21kthreadcore23:10:321
1879645991815,2cyclictest1964748-21irqrtprio20:15:301
1879645991815,2cyclictest0-21swapper/123:40:001
1879645991815,2cyclictest0-21swapper/121:55:021
1879645991812,2cyclictest134050irq/121-eno100:21:191
1879645991812,2cyclictest134050irq/121-eno100:10:021
1879645991812,2cyclictest134050irq/121-eno100:00:381
1879645991811,6cyclictest3824565-21in:imuxsock20:30:001
1879645991811,3cyclictest134050irq/121-eno120:20:251
1879644991812,5cyclictest2100938-21apt-get21:55:230
1879644991810,3cyclictest2017332-21kthreadcore20:55:300
1879644991810,3cyclictest1996221-21kthreadcore20:40:290
1879644991810,3cyclictest1982510-21aten_repower_po20:30:240
2649091170,2phc2sys0-21swapper/322:30:593
187964699179,3cyclictest0-21swapper/219:50:012
187964699173,7cyclictest0-21swapper/223:00:012
1879646991714,1cyclictest0-21swapper/222:35:022
1879646991714,1cyclictest0-21swapper/222:05:532
1879646991714,1cyclictest0-21swapper/221:35:342
1879646991714,1cyclictest0-21swapper/221:20:292
1879646991714,1cyclictest0-21swapper/220:45:022
1879646991713,2cyclictest0-21swapper/220:10:242
187964599179,1cyclictest383433398rtkit-daemon20:39:141
187964599178,4cyclictest134050irq/121-eno100:30:231
187964599178,3cyclictest1944325-21sshd19:57:211
187964599173,6cyclictest2185489-21irqcore22:50:291
1879645991714,2cyclictest3851704-21mta-sts-daemon19:50:261
1879645991714,2cyclictest2161562-21grep22:35:021
1879645991714,2cyclictest1888563-21aten_repower_cu19:15:241
1879645991713,3cyclictest1986056-21kthreadcore20:30:311
1879645991713,3cyclictest1954034-21kthreadcore20:05:291
187964599171,10cyclictest2198832-21ssh22:58:531
187964499179,3cyclictest1914363-21idleruntime19:35:280
2649091168,3phc2sys0-21swapper/322:10:003
2649091160,2phc2sys0-21swapper/323:04:473
2649091160,2phc2sys0-21swapper/321:20:243
2649091160,2phc2sys0-21swapper/319:50:003
2649091160,1phc2sys0-21swapper/300:18:583
187964699168,4cyclictest0-21swapper/220:20:242
1879646991614,1cyclictest0-21swapper/222:20:402
1879646991614,1cyclictest0-21swapper/219:15:012
1879646991614,1cyclictest0-21swapper/219:15:012
1879646991613,1cyclictest0-21swapper/223:57:402
1879646991613,1cyclictest0-21swapper/223:49:192
1879646991613,1cyclictest0-21swapper/223:03:222
1879646991613,1cyclictest0-21swapper/222:52:492
1879646991613,1cyclictest0-21swapper/222:48:282
1879646991613,1cyclictest0-21swapper/222:44:292
1879646991613,1cyclictest0-21swapper/222:15:232
1879646991613,1cyclictest0-21swapper/222:11:132
1879646991613,1cyclictest0-21swapper/222:00:342
1879646991613,1cyclictest0-21swapper/221:55:222
1879646991613,1cyclictest0-21swapper/221:41:452
1879646991613,1cyclictest0-21swapper/221:10:382
1879646991613,1cyclictest0-21swapper/219:15:042
1879646991613,1cyclictest0-21swapper/200:30:302
1879646991613,1cyclictest0-21swapper/200:05:322
1879646991612,2cyclictest0-21swapper/219:25:002
1879646991612,1cyclictest0-21swapper/221:45:372
1879646991611,3cyclictest0-21swapper/223:40:362
187964599169,2cyclictest2234556-21kthreadcore23:20:311
187964599168,3cyclictest2108484-21/usr/sbin/munin22:00:321
187964599161,7cyclictest0-21swapper/100:25:241
1879645991613,2cyclictest2240545-21kthreadcore23:25:311
1879645991613,2cyclictest2064461-21tail21:30:311
1879645991613,2cyclictest1915843-21kthreadcore19:35:311
1879645991612,3cyclictest2006803-21timerwakeupswit20:45:371
1879645991612,3cyclictest0-21swapper/122:35:401
1879645991612,3cyclictest0-21swapper/121:00:031
2649091150,2phc2sys0-21swapper/323:55:293
2649091150,2phc2sys0-21swapper/321:19:113
187964699153,5cyclictest0-21swapper/219:30:012
187964699152,6cyclictest0-21swapper/220:40:012
1879646991513,1cyclictest0-21swapper/223:20:262
1879646991513,1cyclictest0-21swapper/221:32:532
1879646991512,1cyclictest0-21swapper/222:25:342
1879646991512,1cyclictest0-21swapper/221:25:202
1879646991512,1cyclictest0-21swapper/221:05:332
1879646991512,1cyclictest0-21swapper/221:05:332
1879646991512,1cyclictest0-21swapper/220:30:312
1879646991512,1cyclictest0-21swapper/220:25:242
1879646991512,1cyclictest0-21swapper/220:15:312
1879646991512,1cyclictest0-21swapper/220:00:322
1879646991512,1cyclictest0-21swapper/219:30:302
1879646991512,1cyclictest0-21swapper/200:25:562
1879646991511,2cyclictest0-21swapper/223:33:242
1879646991511,2cyclictest0-21swapper/223:26:172
1879646991511,2cyclictest0-21swapper/220:50:252
1879646991511,2cyclictest0-21swapper/219:51:452
1879645991512,2cyclictest2081608-21kthreadcore21:40:311
1879645991512,2cyclictest1910242-21kthreadcore19:30:311
1879645991512,2cyclictest0-21swapper/121:15:021
1879645991511,3cyclictest2147705-21kthreadcore22:25:291
1879645991511,3cyclictest0-21swapper/120:15:011
187964599150,5cyclictest2313371-21ssh00:14:551
2649091148,1phc2sys0-21swapper/300:15:003
2649091141,5phc2sys0-21swapper/300:35:243
2649091140,2phc2sys0-21swapper/321:45:573
2649091140,2phc2sys0-21swapper/300:29:373
2649091140,1phc2sys0-21swapper/320:21:063
2649091140,1phc2sys0-21swapper/319:39:093
1879646991411,1cyclictest0-21swapper/221:00:212
1879646991411,1cyclictest0-21swapper/220:55:302
1879646991411,1cyclictest0-21swapper/220:05:302
1879646991411,1cyclictest0-21swapper/219:55:312
1879646991411,1cyclictest0-21swapper/219:35:312
1879645991410,3cyclictest2011434-21kthreadcore20:50:311
1879645991410,3cyclictest1930413-21kthreadcore19:45:311
2649091139,2phc2sys0-21swapper/322:24:033
2649091131,3phc2sys0-21swapper/323:25:233
2649091130,2phc2sys0-21swapper/323:23:473
2649091130,2phc2sys0-21swapper/323:13:573
2649091130,2phc2sys0-21swapper/322:15:243
2649091130,2phc2sys0-21swapper/300:32:413
1879646991311,1cyclictest0-21swapper/223:35:052
1879646991311,1cyclictest0-21swapper/219:40:252
1879645991311,1cyclictest0-21swapper/119:10:021
2649091121,4phc2sys0-21swapper/321:55:233
2649091120,3phc2sys0-21swapper/321:12:523
2649091120,2phc2sys0-21swapper/322:56:533
2649091120,2phc2sys0-21swapper/322:49:413
2649091120,2phc2sys0-21swapper/322:26:463
2649091120,2phc2sys0-21swapper/300:02:063
2649091120,1phc2sys0-21swapper/320:31:233
2649091120,1phc2sys0-21swapper/319:22:183
187964699129,1cyclictest0-21swapper/219:10:022
2649091112,2phc2sys0-21swapper/322:35:483
2649091112,2phc2sys0-21swapper/320:35:243
2649091112,2phc2sys0-21swapper/300:24:403
2649091111,2phc2sys0-21swapper/323:45:233
2649091110,3phc2sys0-21swapper/321:50:233
2649091110,3phc2sys0-21swapper/321:25:223
2649091110,3phc2sys0-21swapper/319:30:233
2649091110,2phc2sys0-21swapper/321:39:553
2649091110,1phc2sys0-21swapper/321:41:493
2649091110,1phc2sys0-21swapper/321:07:343
2649091110,1phc2sys0-21swapper/321:07:343
2649091101,3phc2sys0-21swapper/319:15:013
2649091101,3phc2sys0-21swapper/319:15:013
2649091101,2phc2sys0-21swapper/323:32:123
2649091101,2phc2sys0-21swapper/322:52:523
2649091101,2phc2sys0-21swapper/321:00:253
2649091101,2phc2sys0-21swapper/320:44:383
2649091101,2phc2sys0-21swapper/320:20:013
2649091101,2phc2sys0-21swapper/319:59:253
2649091101,2phc2sys0-21swapper/319:05:353
2649091100,3phc2sys0-21swapper/322:44:553
2649091100,2phc2sys0-21swapper/323:37:163
2649091100,2phc2sys0-21swapper/323:05:353
2649091100,2phc2sys0-21swapper/319:15:253
2649091100,2phc2sys0-21swapper/300:06:193
2649091100,1phc2sys0-21swapper/320:13:133
2649091100,1phc2sys0-21swapper/319:52:113
264909191,2phc2sys0-21swapper/321:30:553
264909191,2phc2sys0-21swapper/320:55:323
264909190,2phc2sys0-21swapper/323:50:163
264909190,2phc2sys0-21swapper/323:40:143
264909190,2phc2sys0-21swapper/322:04:553
264909190,2phc2sys0-21swapper/320:50:233
264909190,2phc2sys0-21swapper/320:48:233
264909190,2phc2sys0-21swapper/320:25:303
264909190,2phc2sys0-21swapper/320:05:313
264909190,2phc2sys0-21swapper/320:00:263
264909190,2phc2sys0-21swapper/319:25:223
264909181,2phc2sys0-21swapper/319:40:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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