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2026-05-20 - 05:16
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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 rackaslot8.osadl.org (updated Wed May 20, 2026 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
54072302272,18sleep10-21swapper/119:06:101
55122278247,20sleep20-21swapper/219:07:312
55202276245,21sleep00-21swapper/019:07:380
56442258226,22sleep30-21swapper/319:09:143
247322590,0sleep10-21swapper/100:23:231
242482570,0sleep10-21swapper/122:45:141
172122560,0sleep20-21swapper/223:59:422
172122560,0sleep20-21swapper/223:59:422
317042550,0sleep20-21swapper/223:29:072
27462550,1sleep12747-21fschecks_time00:10:141
68762540,0sleep30-21swapper/321:16:093
64532200,0sleep00-21swapper/022:34:480
304912180,0sleep00-21swapper/022:29:430
197082170,0sleep20-21swapper/200:20:162
90232160,0sleep30-21swapper/300:14:173
70632140,0sleep00-21swapper/023:14:120
199952140,0sleep10-21swapper/121:44:231
314472130,0sleep10-21swapper/122:30:121
203332130,0sleep00-21swapper/022:42:440
580799120,3cyclictest275-21systemd-journal00:20:013
579099127,1cyclictest12-21ksoftirqd/022:40:000
108012120,0chrt0-21swapper/021:19:110
580799112,3cyclictest504-21dbus-daemon22:15:013
99122100,0sleep20-21swapper/222:55:322
580799104,1cyclictest19108-21unixbench_multi23:40:193
580299104,1cyclictest501-21in:imuxsock00:25:072
580299100,3cyclictest275-21systemd-journal21:11:572
580299100,3cyclictest275-21systemd-journal20:10:012
58079993,2cyclictest27549-21ssh00:05:223
58079993,2cyclictest25963-21ssh22:07:033
58079993,2cyclictest25963-21ssh22:07:033
58079993,1cyclictest9557-21taskset20:25:423
58079992,2cyclictest658-21snmpd20:10:353
58079992,2cyclictest504-21dbus-daemon22:37:273
58079992,2cyclictest0-21swapper/300:33:253
58079992,1cyclictest0-21swapper/323:52:453
58079992,1cyclictest0-21swapper/322:46:373
58079990,3cyclictest275-21systemd-journal23:32:333
58079990,3cyclictest275-21systemd-journal23:11:073
58079990,3cyclictest275-21systemd-journal20:24:563
58079990,3cyclictest275-21systemd-journal20:15:363
58079990,3cyclictest275-21systemd-journal20:05:573
58029996,3cyclictest0-21swapper/221:15:262
58029993,1cyclictest15197-21chrt00:17:402
58029993,1cyclictest0-21swapper/222:10:042
58029992,3cyclictest6703-21cat19:10:192
58029992,3cyclictest658-21snmpd00:02:122
58029992,2cyclictest30519-21unixbench_singl21:30:212
58029992,2cyclictest25863-21cat19:50:192
58029992,2cyclictest2002-21head23:10:202
58029992,1cyclictest0-21swapper/222:54:552
58029991,3cyclictest658-21snmpd20:20:362
58029991,3cyclictest275-21systemd-journal21:53:102
58029991,3cyclictest22344-21ssh22:44:192
58029991,3cyclictest0-21swapper/200:37:502
57909997,2cyclictest12-21ksoftirqd/019:55:010
57909997,2cyclictest12-21ksoftirqd/000:00:010
57909997,2cyclictest12-21ksoftirqd/000:00:010
58079983,1cyclictest663-21runrttasks23:46:503
58079982,2cyclictest21464-21ssh22:43:363
58079982,2cyclictest10121-21sort23:15:223
58079982,1cyclictest0-21swapper/323:55:283
58079982,1cyclictest0-21swapper/323:55:283
58079981,3cyclictest0-21swapper/300:36:063
58029983,4cyclictest0-21swapper/223:05:182
58029983,1cyclictest3874-21unixbench_multi00:10:202
58029983,1cyclictest20249-21sh23:21:392
58029983,1cyclictest0-21swapper/221:46:542
58029982,2cyclictest658-21snmpd23:54:362
58029982,2cyclictest658-21snmpd23:31:352
58029982,2cyclictest658-21snmpd20:51:542
58029982,2cyclictest5755-21open_inodes21:35:172
58029982,2cyclictest15106-21chrt19:27:342
58029982,2cyclictest13899-21ssh23:18:062
58029981,3cyclictest658-21snmpd21:25:132
58029980,4cyclictest18367-21grep19:35:152
58029980,3cyclictest275-21systemd-journal22:08:362
58029980,3cyclictest275-21systemd-journal22:08:362
58029980,2cyclictest275-21systemd-journal22:19:262
58029980,0cyclictest0-21swapper/220:56:042
57949987,1cyclictest22-21ksoftirqd/100:40:001
57909985,2cyclictest10839-21systemctl19:20:010
57909984,2cyclictest275-21systemd-journal20:45:420
57909983,3cyclictest17874-40gzip00:00:010
57909980,7cyclictest31231-21ssh23:28:450
22617280,0sleep30-21swapper/321:45:213
58079974,2cyclictest504-21dbus-daemon21:32:443
58079973,3cyclictest658-21snmpd22:54:383
58079973,3cyclictest13314-21ntpq20:35:173
58079972,3cyclictest275-21systemd-journal20:50:583
58079972,2cyclictest658-21snmpd21:00:393
58079970,1cyclictest13428-21sort22:00:013
58029973,3cyclictest658-21snmpd20:36:152
58029973,3cyclictest504-21dbus-daemon23:04:372
58029973,3cyclictest3388-21expr00:30:132
58029973,3cyclictest32485-21cut22:30:162
58029972,3cyclictest275-21systemd-journal20:19:212
58029972,2cyclictest29046-21ssh22:48:052
58029972,1cyclictest27356-21date23:45:202
58029972,1cyclictest1682-21sh00:09:592
58029970,3cyclictest24331-21ssh23:44:162
57949973,3cyclictest658-21snmpd00:30:101
57949973,2cyclictest275-21systemd-journal00:06:191
57909976,1cyclictest12-21ksoftirqd/000:25:000
57909974,2cyclictest275-21systemd-journal23:21:090
57909973,3cyclictest658-21snmpd19:42:500
57909973,3cyclictest658-21snmpd00:08:560
57909973,3cyclictest6176-21packagekitd22:20:070
57909973,3cyclictest23247-21cron21:00:000
57909973,3cyclictest18242-21basename00:20:010
57909970,3cyclictest275-21systemd-journal23:16:070
13993270,0sleep30-21swapper/323:37:413
6684260,0sleep0131rcuc/022:54:260
58079964,1cyclictest26602-21ssh23:05:383
58079963,2cyclictest551-21ssh21:51:403
58079963,2cyclictest31458-21ssh23:28:563
58079963,2cyclictest19642-21chrt19:38:443
58079963,2cyclictest18965-21ssh23:01:073
58079962,3cyclictest8459-21fw_packets22:55:133
58079962,3cyclictest658-21snmpd20:55:333
58079962,3cyclictest658-21snmpd20:45:003
58079962,3cyclictest658-21snmpd20:41:273
58079962,3cyclictest658-21snmpd20:30:333
58079962,3cyclictest658-21snmpd19:46:533
58079962,3cyclictest504-21dbus-daemon22:20:013
58079962,3cyclictest31652-21ls22:30:123
58079962,3cyclictest30562-21sshd21:10:493
58079962,3cyclictest275-21systemd-journal19:30:013
58079962,3cyclictest15142-21expr22:20:143
58079962,3cyclictest11430-21expr19:20:123
58079962,1cyclictest50850irq/136-enp4s0-22:00:193
58079962,1cyclictest0-21swapper/321:41:353
58079962,1cyclictest0-21swapper/300:25:153
58079961,4cyclictest20168-21cpuspeed_turbos19:40:123
58079961,4cyclictest0-21swapper/321:25:173
58079960,6cyclictest0-21swapper/322:25:493
58079960,6cyclictest0-21swapper/321:36:083
58079960,5cyclictest18578-21sed23:20:213
58029964,1cyclictest6223-21ls21:55:162
58029963,2cyclictest658-21snmpd23:35:262
58029963,2cyclictest24382-21mailstats22:25:182
58029963,2cyclictest24362-21grep21:00:152
58029963,2cyclictest10029-21sh22:36:092
58029963,2cyclictest0-21swapper/221:40:152
58029962,3cyclictest9546-21cat19:15:162
58029962,3cyclictest674-21lldpd19:32:422
58029962,3cyclictest658-21snmpd22:20:132
58029962,3cyclictest275-21systemd-journal20:00:012
58029962,3cyclictest2201-21ntpq20:10:182
58029962,3cyclictest15111-21fschecks_time20:40:132
57949966,0cyclictest0-21swapper/123:33:551
57949966,0cyclictest0-21swapper/123:27:041
57949966,0cyclictest0-21swapper/122:56:451
57949966,0cyclictest0-21swapper/120:55:151
57949964,1cyclictest16588-21df23:00:121
57949963,2cyclictest6883-21diskstats22:15:141
57949963,2cyclictest663-21runrttasks22:07:251
57949963,2cyclictest663-21runrttasks22:07:251
57949963,2cyclictest658-21snmpd20:49:001
57949963,2cyclictest504-21dbus-daemon23:09:371
57949963,2cyclictest31958-21grep22:10:211
57949963,2cyclictest30850-21chrt20:04:411
57949963,2cyclictest30288-21cat21:50:161
57949963,2cyclictest275-21systemd-journal23:19:111
57949963,2cyclictest275-21systemd-journal20:10:061
57949963,2cyclictest275-21systemd-journal00:26:491
57949963,2cyclictest23590-21fschecks_time22:25:141
57949963,2cyclictest20455-21rm23:21:471
57949963,2cyclictest18894-21ssh22:41:381
57949963,2cyclictest16065-21grep20:40:191
57949963,2cyclictest1461-21ssh22:50:241
57949963,2cyclictest10240-21grep23:55:111
57949963,2cyclictest10240-21grep23:55:111
57949963,2cyclictest0-21swapper/123:36:381
57949963,2cyclictest0-21swapper/123:12:151
57949963,2cyclictest0-21swapper/121:35:311
57949963,1cyclictest0-21swapper/121:17:441
57949962,3cyclictest8471-21if_enp4s019:15:011
57949962,3cyclictest658-21snmpd23:53:181
57949962,3cyclictest658-21snmpd23:40:391
57949962,3cyclictest658-21snmpd22:37:491
57949962,3cyclictest658-21snmpd21:46:211
57949962,3cyclictest658-21snmpd21:24:311
57949962,3cyclictest658-21snmpd20:34:541
57949962,3cyclictest658-21snmpd20:19:211
57949962,3cyclictest658-21snmpd20:08:171
57949962,3cyclictest658-21snmpd19:55:171
57949962,3cyclictest658-21snmpd19:54:141
57949962,3cyclictest658-21snmpd19:43:431
57949962,3cyclictest658-21snmpd19:35:031
57949962,3cyclictest658-21snmpd19:30:581
57949962,3cyclictest6403-21cat20:20:151
57949962,3cyclictest275-21systemd-journal21:30:131
57949962,3cyclictest275-21systemd-journal19:14:341
57949962,3cyclictest24190-21cat21:00:141
57949962,1cyclictest0-21swapper/100:15:151
57949961,3cyclictest275-21systemd-journal21:06:571
57949961,3cyclictest19028-21rm22:22:181
57949960,6cyclictest0-21swapper/121:57:201
57949960,6cyclictest0-21swapper/119:20:211
57949960,6cyclictest0-21swapper/100:02:041
57949960,0cyclictest0-21swapper/121:11:151
57909964,1cyclictest10895-21cron00:35:000
57909963,2cyclictest7215-21ssh23:53:200
57909963,2cyclictest31203-21ssh23:48:120
57909963,2cyclictest30144-21awk20:00:190
57909963,2cyclictest28777-21sh21:30:090
57909963,2cyclictest27727-21ssh23:06:290
57909963,2cyclictest275-21systemd-journal23:00:030
57909963,2cyclictest23880-21rm22:05:260
57909963,2cyclictest23880-21rm22:05:250
57909963,2cyclictest19514-21sh23:40:320
57909963,2cyclictest1519-21expr20:10:140
57909963,2cyclictest11655-21rm23:35:540
57909963,1cyclictest0-21swapper/022:19:590
57909962,3cyclictest658-21snmpd22:55:230
57909962,3cyclictest658-21snmpd22:10:250
57909962,3cyclictest658-21snmpd21:56:330
57909962,3cyclictest658-21snmpd21:51:390
57909962,3cyclictest658-21snmpd21:49:450
57909962,3cyclictest658-21snmpd21:02:340
57909962,3cyclictest658-21snmpd20:32:390
57909962,3cyclictest658-21snmpd20:09:530
57909962,3cyclictest658-21snmpd19:36:190
57909962,3cyclictest658-21snmpd19:28:160
57909962,3cyclictest658-21snmpd00:10:080
57909962,3cyclictest6243-21cat19:10:160
57909962,3cyclictest11262-21grep19:20:110
57909962,1cyclictest0-21swapper/023:30:030
57909962,1cyclictest0-21swapper/022:01:100
57909962,1cyclictest0-21swapper/021:20:500
57909962,1cyclictest0-21swapper/021:12:090
57909960,6cyclictest0-21swapper/022:49:400
57909960,6cyclictest0-21swapper/021:41:490
57909960,0cyclictest0-21swapper/021:25:270
22892260,0sleep10-21swapper/121:25:481
58079952,3cyclictest16808-21sed19:30:183
58079952,2cyclictest8742-21tune2fs19:15:023
58079952,2cyclictest29148-21cat20:00:113
58079952,2cyclictest27351-21cat19:55:153
58079952,2cyclictest25337-21ls19:50:173
58079952,2cyclictest18579-21apt-key00:20:013
58079952,2cyclictest12181-21ssh21:20:033
58079951,3cyclictest26254-21fw_packets21:05:143
58079951,3cyclictest17872-21cups-browsed00:00:013
58079950,4cyclictest6136-21cat19:10:163
58029952,2cyclictest9066-21rt-features20:25:182
58029952,2cyclictest658-21snmpd21:20:042
58029952,2cyclictest658-21snmpd19:45:172
58029952,2cyclictest504-21dbus-daemon20:33:312
58029952,2cyclictest29989-21proc_pri20:00:182
58029952,2cyclictest20141-21cat19:40:122
58029952,2cyclictest18447-21sshd20:45:432
58029952,2cyclictest13965-21expr22:00:142
58029952,2cyclictest11337-21expr19:20:122
58029951,3cyclictest25728-21/usr/sbin/munin21:05:142
57949953,1cyclictest12402-21wc20:35:111
57949952,2cyclictest658-21snmpd22:00:151
57949952,2cyclictest658-21snmpd20:25:031
57949952,2cyclictest25688-21rm23:45:091
57949952,2cyclictest22916-21cat19:45:151
57949952,2cyclictest19051-21basename20:50:111
57949952,2cyclictest14189-21cat19:25:161
57909952,2cyclictest658-21snmpd19:49:590
57909952,2cyclictest6119-21/usr/sbin/munin20:20:120
57909952,2cyclictest5035-21vmstat20:15:230
57909952,2cyclictest4550-21ssh21:35:070
57909952,2cyclictest27169-21cut19:55:140
57909952,2cyclictest26421-21cat21:05:150
57909952,2cyclictest19058-21cat20:50:110
57909952,2cyclictest11674-21ls00:35:130
57909951,3cyclictest658-21snmpd20:40:150
57909951,3cyclictest275-21systemd-journal20:35:110
57909951,3cyclictest275-21systemd-journal00:25:070
57909951,3cyclictest16241-21cat19:30:140
57909950,4cyclictest8095-21grep20:25:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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