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2026-05-05 - 02:00
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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
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack4slot4.osadl.org (updated Tue May 05, 2026 00:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71820rcu_preempt0-21swapper/223:24:222
71820rcu_preempt0-21swapper/223:24:222
71810rcu_preempt0-21swapper/223:15:072
71810rcu_preempt0-21swapper/223:15:072
71660rcu_preempt0-21swapper/221:56:142
71660rcu_preempt0-21swapper/221:56:142
220222640chrt46650irq/116-QMan10:48:553
220222640chrt46650irq/116-QMan10:48:553
71550rcu_preempt0-21swapper/221:12:452
71550rcu_preempt0-21swapper/221:12:452
71550rcu_preempt0-21swapper/221:12:452
71540rcu_preempt0-21swapper/221:50:352
71540rcu_preempt0-21swapper/221:50:352
71540rcu_preempt0-21swapper/221:50:352
71540rcu_preempt0-21swapper/221:32:472
71540rcu_preempt0-21swapper/221:32:472
71540rcu_preempt0-21swapper/022:48:310
71540rcu_preempt0-21swapper/022:48:310
71540rcu_preempt0-21swapper/021:50:290
71540rcu_preempt0-21swapper/021:50:290
71540rcu_preempt0-21swapper/021:50:290
71530rcu_preempt17070-21copy20:27:453
71530rcu_preempt17070-21copy20:27:453
71530rcu_preempt17070-21copy20:27:453
71520rcu_preempt3253-21sendmail-msp22:30:580
71520rcu_preempt3253-21sendmail-msp22:30:580
71520rcu_preempt3253-21sendmail-msp22:30:580
71520rcu_preempt23661-21tee19:20:432
71520rcu_preempt23661-21tee19:20:432
71520rcu_preempt23661-21tee19:20:432
71520rcu_preempt0-21swapper/222:25:322
71520rcu_preempt0-21swapper/222:25:322
71520rcu_preempt0-21swapper/222:25:322
71520rcu_preempt0-21swapper/021:31:590
71520rcu_preempt0-21swapper/021:31:590
71520rcu_preempt0-21swapper/000:16:090
71520rcu_preempt0-21swapper/000:16:090
2924199512cyclictest29677-21kworker/u8:222:23:121
2924199512cyclictest29677-21kworker/u8:222:23:121
2924199512cyclictest29677-21kworker/u8:222:23:121
2924199511cyclictest26012-21sendmail-msp19:13:251
2924199511cyclictest26012-21sendmail-msp19:13:251
2924199511cyclictest26012-21sendmail-msp19:13:251
71500rcu_preempt20963-1tee19:19:350
71500rcu_preempt20963-1tee19:19:350
71500rcu_preempt20963-1tee19:19:350
71500rcu_preempt0-21swapper/223:12:002
71500rcu_preempt0-21swapper/223:12:002
71500rcu_preempt0-21swapper/021:54:450
71500rcu_preempt0-21swapper/021:54:450
2924199501cyclictest1959-21runrttasks21:12:521
2924199501cyclictest1959-21runrttasks21:12:521
71490rcu_preempt24050-21latency_hist20:52:440
71490rcu_preempt24050-21latency_hist20:52:440
71490rcu_preempt24050-21latency_hist20:52:440
71490rcu_preempt18207-1kworker/0:2H23:51:080
71490rcu_preempt18207-1kworker/0:2H23:51:080
71490rcu_preempt18207-1kworker/0:2H23:51:080
71490rcu_preempt0-21swapper/000:38:140
71490rcu_preempt0-21swapper/000:38:140
71480rcu_preempt0-21swapper/200:32:062
71480rcu_preempt0-21swapper/200:32:062
71480rcu_preempt0-21swapper/000:30:280
71480rcu_preempt0-21swapper/000:30:280
71470rcu_preempt3728-21ssh22:23:020
71470rcu_preempt3728-21ssh22:23:020
71470rcu_preempt3728-21ssh22:23:020
71470rcu_preempt0-21swapper/222:41:012
71470rcu_preempt0-21swapper/222:41:012
71470rcu_preempt0-21swapper/222:41:012
2924199471cyclictest14150-21sendmail-msp23:42:431
2924199471cyclictest14150-21sendmail-msp23:42:431
71460rcu_preempt0-21swapper/023:20:540
71460rcu_preempt0-21swapper/023:20:540
71460rcu_preempt0-21swapper/022:34:150
71460rcu_preempt0-21swapper/022:34:150
71460rcu_preempt0-21swapper/022:01:350
71460rcu_preempt0-21swapper/022:01:350
2924199462cyclictest1959-21runrttasks22:47:211
2924199462cyclictest1959-21runrttasks22:47:211
2924199462cyclictest1959-21runrttasks22:47:211
2924199462cyclictest1959-21runrttasks21:33:001
2924199462cyclictest1959-21runrttasks21:33:001
2924199462cyclictest1959-21runrttasks21:33:001
2924199461cyclictest8985-21/usr/sbin/munin19:57:541
2924199461cyclictest8985-21/usr/sbin/munin19:57:541
2924199461cyclictest8985-21/usr/sbin/munin19:57:541
2924199461cyclictest2966-21sendmail-msp21:22:461
2924199461cyclictest25028-21sendmail-msp00:05:091
2924199461cyclictest25028-21sendmail-msp00:05:091
71450rcu_preempt0-21swapper/023:26:490
71450rcu_preempt0-21swapper/023:26:490
71450rcu_preempt0-21swapper/022:44:590
71450rcu_preempt0-21swapper/022:44:590
71450rcu_preempt0-21swapper/022:44:590
71450rcu_preempt0-21swapper/000:03:040
71450rcu_preempt0-21swapper/000:03:040
2924199452cyclictest26781-21sendmail-msp21:10:381
2924199452cyclictest26781-21sendmail-msp21:10:381
2924199452cyclictest26781-21sendmail-msp21:10:381
2924199452cyclictest21214-21sendmail-msp20:47:531
2924199452cyclictest21214-21sendmail-msp20:47:531
2924199452cyclictest21214-21sendmail-msp20:47:531
2924199452cyclictest1959-21runrttasks22:16:471
2924199452cyclictest1959-21runrttasks22:16:471
2924199451cyclictest26748-21expr19:22:021
2924199451cyclictest26748-21expr19:22:021
2924199451cyclictest26748-21expr19:22:021
71440rcu_preempt0-21swapper/023:44:220
71440rcu_preempt0-21swapper/023:44:220
71440rcu_preempt0-21swapper/022:39:310
71440rcu_preempt0-21swapper/022:39:310
71440rcu_preempt0-21swapper/022:39:310
71440rcu_preempt0-21swapper/022:10:570
71440rcu_preempt0-21swapper/022:10:570
71440rcu_preempt0-21swapper/022:10:570
71440rcu_preempt0-21swapper/021:33:010
71440rcu_preempt0-21swapper/021:33:010
71440rcu_preempt0-21swapper/021:33:010
71440rcu_preempt0-21swapper/019:17:410
71440rcu_preempt0-21swapper/019:17:410
71440rcu_preempt0-21swapper/019:17:410
2924199442cyclictest14016-21/usr/sbin/munin21:42:531
2924199442cyclictest14016-21/usr/sbin/munin21:42:531
2924199442cyclictest11655-21/usr/sbin/munin00:38:091
2924199442cyclictest11655-21/usr/sbin/munin00:38:091
2924199441cyclictest6542-21ntpq19:48:041
2924199441cyclictest6542-21ntpq19:48:041
2924199441cyclictest29571-21diskmemload22:36:121
2924199441cyclictest29571-21diskmemload22:36:121
2924199441cyclictest2684-21taskset22:21:151
2924199441cyclictest2684-21taskset22:21:151
2924199441cyclictest2684-21taskset22:21:151
2924199441cyclictest21216-21latency_hist20:42:461
2924199441cyclictest1959-21runrttasks23:50:151
2924199441cyclictest1959-21runrttasks23:50:151
2924199441cyclictest1959-21runrttasks23:50:151
2924199441cyclictest1958-21snmpd23:46:151
2924199441cyclictest1958-21snmpd23:46:151
71430rcu_preempt0-21swapper/023:53:460
71430rcu_preempt0-21swapper/023:53:460
71430rcu_preempt0-21swapper/023:53:460
71430rcu_preempt0-21swapper/021:24:360
71430rcu_preempt0-21swapper/021:24:360
71430rcu_preempt0-21swapper/019:35:400
71430rcu_preempt0-21swapper/019:35:400
71430rcu_preempt0-21swapper/019:35:400
71430rcu_preempt0-21swapper/000:26:160
71430rcu_preempt0-21swapper/000:26:160
71430rcu_preempt0-21swapper/000:26:160
2924199434cyclictest0-21swapper/123:59:021
2924199434cyclictest0-21swapper/123:59:021
2924199433cyclictest13862-21users20:13:081
2924199433cyclictest13862-21users20:13:081
2924199433cyclictest0-21swapper/100:31:081
2924199433cyclictest0-21swapper/100:31:081
2924199432cyclictest9868-21/usr/sbin/munin00:33:101
2924199432cyclictest9868-21/usr/sbin/munin00:33:101
2924199432cyclictest9868-21/usr/sbin/munin00:33:101
2924199432cyclictest4506-21munin-run19:42:421
2924199432cyclictest4506-21munin-run19:42:421
2924199432cyclictest30531-21df_inode23:12:561
2924199432cyclictest30531-21df_inode23:12:561
2924199432cyclictest29300-21memory19:23:051
2924199432cyclictest29300-21memory19:23:051
2924199432cyclictest24898-21/usr/sbin/munin22:03:111
2924199432cyclictest24898-21/usr/sbin/munin22:03:111
2924199431cyclictest2966-21sendmail-msp21:31:461
2924199431cyclictest2966-21sendmail-msp21:31:461
2924199431cyclictest1958-21snmpd23:55:501
2924199431cyclictest1958-21snmpd23:55:501
2924199431cyclictest1958-21snmpd23:55:501
2299430migration/229164-21taskset19:12:442
2299430migration/229164-21taskset19:12:442
71420rcu_preempt1212-21ssh00:18:040
71420rcu_preempt1212-21ssh00:18:040
71420rcu_preempt1212-21ssh00:18:040
71420rcu_preempt0-21swapper/000:01:380
71420rcu_preempt0-21swapper/000:01:380
2924199424cyclictest0-21swapper/122:32:341
2924199424cyclictest0-21swapper/122:32:341
2924199424cyclictest0-21swapper/122:32:341
2924199423cyclictest0-21swapper/121:38:071
2924199423cyclictest0-21swapper/121:38:071
2924199423cyclictest0-21swapper/121:23:101
2924199423cyclictest0-21swapper/121:23:101
2924199423cyclictest0-21swapper/119:53:111
2924199423cyclictest0-21swapper/119:53:111
2924199423cyclictest0-21swapper/119:42:561
2924199423cyclictest0-21swapper/119:42:561
2924199423cyclictest0-21swapper/119:42:561
2924199422cyclictest4077-21meminfo00:23:011
2924199422cyclictest4077-21meminfo00:23:011
2924199422cyclictest4077-21meminfo00:23:011
2924199422cyclictest23989-21apt-get20:53:021
2924199422cyclictest23989-21apt-get20:53:021
2924199422cyclictest22599-21ssh21:58:061
2924199422cyclictest22599-21ssh21:58:061
2924199422cyclictest1959-21runrttasks00:16:491
2924199422cyclictest1959-21runrttasks00:16:491
2924199422cyclictest16920-21diskstats21:47:561
2924199422cyclictest16920-21diskstats21:47:561
2924199422cyclictest16920-21diskstats21:47:561
2924199422cyclictest10617-21/usr/sbin/munin20:03:021
2924199422cyclictest10617-21/usr/sbin/munin20:03:021
2924199422cyclictest10617-21/usr/sbin/munin20:03:021
2924199421cyclictest8737-21/usr/sbin/munin23:33:011
2924199421cyclictest8737-21/usr/sbin/munin23:33:011
2924199421cyclictest24824-21sendmail-msp23:03:321
2924199421cyclictest24824-21sendmail-msp23:03:321
2924199421cyclictest24824-21sendmail-msp23:03:321
2924199421cyclictest24722-21sendmail-msp22:11:241
2924199421cyclictest24722-21sendmail-msp22:11:241
2924199421cyclictest24722-21sendmail-msp22:11:241
2924199421cyclictest14081-21sendmail-msp22:51:171
2924199421cyclictest14081-21sendmail-msp22:51:171
71410rcu_preempt28501-21spawn19:14:483
71410rcu_preempt28501-21spawn19:14:483
71410rcu_preempt28501-21spawn19:14:483
71410rcu_preempt22213-21copy23:57:542
71410rcu_preempt22213-21copy23:57:542
71410rcu_preempt11498-21basename22:37:521
71410rcu_preempt11498-21basename22:37:521
71410rcu_preempt11498-21basename22:37:521
71410rcu_preempt0-21swapper/022:57:370
71410rcu_preempt0-21swapper/022:57:370
71410rcu_preempt0-21swapper/022:57:370
46050410irq/122-QManpo29048-2110:48:550
46050410irq/122-QManpo29048-2110:48:550
2924199413cyclictest0-21swapper/123:21:291
2924199413cyclictest0-21swapper/123:21:291
2924199413cyclictest0-21swapper/122:55:321
2924199413cyclictest0-21swapper/122:55:321
2924199413cyclictest0-21swapper/122:55:321
2924199413cyclictest0-21swapper/121:53:571
2924199413cyclictest0-21swapper/121:53:571
2924199413cyclictest0-21swapper/120:23:091
2924199413cyclictest0-21swapper/120:23:091
2924199413cyclictest0-21swapper/120:23:091
2924199413cyclictest0-21swapper/120:18:041
2924199413cyclictest0-21swapper/120:18:041
2924199413cyclictest0-21swapper/120:18:041
2924199413cyclictest0-21swapper/100:12:001
2924199413cyclictest0-21swapper/100:12:001
2924199413cyclictest0-21swapper/100:12:001
2924199412cyclictest636-21meminfo21:18:021
2924199412cyclictest636-21meminfo21:18:021
2924199412cyclictest3930-21meminfo23:23:031
2924199412cyclictest3930-21meminfo23:23:031
2924199412cyclictest22607-21memory22:58:031
2924199412cyclictest22607-21memory22:58:031
2924199412cyclictest17195-21aten_r4power_cu20:27:531
2924199412cyclictest17195-21aten_r4power_cu20:27:531
2924199411cyclictest27691-21aten_r4power_cu23:07:551
2924199411cyclictest27691-21aten_r4power_cu23:07:551
71400rcu_preempt26004-21chrt22:03:360
71400rcu_preempt26004-21chrt22:03:360
71400rcu_preempt0-21swapper/123:28:021
71400rcu_preempt0-21swapper/123:28:021
71400rcu_preempt0-21swapper/123:28:021
71400rcu_preempt0-21swapper/023:41:350
71400rcu_preempt0-21swapper/023:41:350
71400rcu_preempt0-21swapper/023:29:240
71400rcu_preempt0-21swapper/023:29:240
71400rcu_preempt0-21swapper/023:29:240
71400rcu_preempt0-21swapper/020:28:060
71400rcu_preempt0-21swapper/020:28:060
71400rcu_preempt0-21swapper/019:50:380
71400rcu_preempt0-21swapper/019:50:380
2924199403cyclictest0-21swapper/120:42:421
2924199402cyclictest3526-21latency_hist00:22:431
2924199402cyclictest3526-21latency_hist00:22:431
2924199402cyclictest3526-21latency_hist00:22:431
2924199402cyclictest12131-21ntp_states20:08:061
2924199402cyclictest12131-21ntp_states20:08:061
2924199401cyclictest1959-21runrttasks20:46:271
2924199401cyclictest1959-21runrttasks20:46:271
2924199401cyclictest1959-21runrttasks20:46:271
71390rcu_preempt31227-21runrttasks22:13:210
71390rcu_preempt31227-21runrttasks22:13:210
71390rcu_preempt0-21swapper/221:57:512
71390rcu_preempt0-21swapper/221:57:512
71390rcu_preempt0-21swapper/219:23:402
71390rcu_preempt0-21swapper/219:23:402
71390rcu_preempt0-21swapper/021:45:400
71390rcu_preempt0-21swapper/021:45:400
71390rcu_preempt0-21swapper/021:18:510
71390rcu_preempt0-21swapper/021:18:510
71390rcu_preempt0-21swapper/021:18:510
71390rcu_preempt0-21swapper/020:33:020
71390rcu_preempt0-21swapper/020:33:020
71390rcu_preempt0-21swapper/000:10:170
71390rcu_preempt0-21swapper/000:10:170
71390rcu_preempt0-21swapper/000:10:170
46650390irq/116-QManpo1959-2110:48:553
46650390irq/116-QManpo1959-2110:48:553
71380rcu_preempt29612-21copy21:12:530
71380rcu_preempt29612-21copy21:12:530
71380rcu_preempt24279-21spawn19:14:382
71380rcu_preempt24279-21spawn19:14:382
71380rcu_preempt24279-21spawn19:14:382
71380rcu_preempt0-21swapper/321:13:063
71380rcu_preempt0-21swapper/321:13:063
71380rcu_preempt0-21swapper/219:49:502
71380rcu_preempt0-21swapper/219:49:502
46650380irq/116-QManpo0-2110:48:553
46650380irq/116-QManpo0-2110:48:553
2924199382cyclictest27091-21df21:02:551
2924199382cyclictest27091-21df21:02:551
2924199382cyclictest27091-21df21:02:551
2924199382cyclictest26838-21wc21:02:431
2924199382cyclictest26838-21wc21:02:431
29241993810cyclictest839-21meminfo19:28:001
29241993810cyclictest839-21meminfo19:28:001
29241993810cyclictest839-21meminfo19:28:001
71370rcu_preempt0-21swapper/222:47:132
71370rcu_preempt0-21swapper/222:47:132
71370rcu_preempt0-21swapper/222:47:132
71370rcu_preempt0-21swapper/000:35:000
71370rcu_preempt0-21swapper/000:35:000
71370rcu_preempt0-21swapper/000:35:000
46250370irq/120-QManpo27542-2110:48:551
46250370irq/120-QManpo27542-2110:48:551
71360rcu_preempt0-21swapper/200:18:102
71360rcu_preempt0-21swapper/200:18:102
71360rcu_preempt0-21swapper/200:18:102
71360rcu_preempt0-21swapper/023:08:190
71360rcu_preempt0-21swapper/023:08:190
71360rcu_preempt0-21swapper/023:06:200
71360rcu_preempt0-21swapper/023:06:200
71360rcu_preempt0-21swapper/023:06:200
71360rcu_preempt0-21swapper/020:42:510
71360rcu_preempt0-21swapper/020:42:510
71360rcu_preempt0-21swapper/020:42:510
71360rcu_preempt0-21swapper/019:46:040
71360rcu_preempt0-21swapper/019:46:040
71360rcu_preempt0-21swapper/019:46:040
71360rcu_preempt0-21swapper/019:23:150
71360rcu_preempt0-21swapper/019:23:150
2924199362cyclictest1959-21runrttasks19:35:041
2924199362cyclictest1959-21runrttasks19:35:041
2924199362cyclictest1959-21runrttasks19:35:041
71350rcu_preempt0-21swapper/023:34:380
71350rcu_preempt0-21swapper/023:34:380
71350rcu_preempt0-21swapper/021:38:440
71350rcu_preempt0-21swapper/021:38:440
71350rcu_preempt0-21swapper/019:52:580
71350rcu_preempt0-21swapper/019:52:580
2924199352cyclictest18570-21/usr/sbin/munin20:33:001
2924199352cyclictest18570-21/usr/sbin/munin20:33:001
71340rcu_preempt29571-21diskmemload22:21:240
71340rcu_preempt29571-21diskmemload22:21:240
71340rcu_preempt29571-21diskmemload22:21:240
71340rcu_preempt12942-21latency_hist20:12:440
71340rcu_preempt12942-21latency_hist20:12:440
71340rcu_preempt0-21swapper/023:15:520
71340rcu_preempt0-21swapper/023:15:520
71340rcu_preempt0-21swapper/022:59:540
71340rcu_preempt0-21swapper/022:59:540
71340rcu_preempt0-21swapper/021:02:480
71340rcu_preempt0-21swapper/021:02:480
71340rcu_preempt0-21swapper/021:02:480
71340rcu_preempt0-21swapper/020:37:570
71340rcu_preempt0-21swapper/020:37:570
71340rcu_preempt0-21swapper/020:19:210
71340rcu_preempt0-21swapper/020:19:210
71340rcu_preempt0-21swapper/020:19:210
71330rcu_preempt0-21swapper/021:10:300
71330rcu_preempt0-21swapper/021:10:300
71330rcu_preempt0-21swapper/021:10:300
71330rcu_preempt0-21swapper/020:26:580
71330rcu_preempt0-21swapper/020:26:580
71330rcu_preempt0-21swapper/020:26:580
46450330irq/118-QManpo7284-2110:48:552
46450330irq/118-QManpo7284-2110:48:552
71320rcu_preempt25422-21latency_hist20:57:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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