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2026-03-11 - 17:02
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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 Wed Mar 11, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71740rcu_preempt0-21swapper/010:45:270
71740rcu_preempt0-21swapper/010:45:270
71740rcu_preempt0-21swapper/010:45:270
71700rcu_preempt0-21swapper/210:28:062
71700rcu_preempt0-21swapper/210:28:062
71670rcu_preempt0-21swapper/212:34:232
71670rcu_preempt0-21swapper/212:34:232
477995332cyclictest32484-21munin-run10:06:420
477995332cyclictest32484-21munin-run10:06:420
477995332cyclictest32484-21munin-run10:06:420
477995331cyclictest23027-21munin-run12:41:420
477995331cyclictest23027-21munin-run12:41:420
477995324cyclictest19629-21grep09:42:120
477995324cyclictest19629-21grep09:42:120
477995324cyclictest19629-21grep09:42:120
477995229cyclictest14416-21apt-get10:31:510
477995229cyclictest14416-21apt-get10:31:510
477995229cyclictest12111-21diskstats12:21:570
477995229cyclictest12111-21diskstats12:21:570
477995226cyclictest18361-21ssh09:41:140
477995226cyclictest18361-21ssh09:41:140
477995226cyclictest18361-21ssh09:41:140
477995225cyclictest6429-21diskstats07:31:570
477995225cyclictest6429-21diskstats07:31:570
477995130cyclictest31738-21diskstats11:01:570
477995130cyclictest31738-21diskstats11:01:570
477995130cyclictest31738-21diskstats11:01:570
477995125cyclictest6580-21ntp_states10:17:040
477995125cyclictest6580-21ntp_states10:17:040
477995125cyclictest6580-21ntp_states10:17:040
477995120cyclictest0-21swapper/007:27:100
477995120cyclictest0-21swapper/007:27:100
477994929cyclictest21909-21grep09:47:060
477994929cyclictest21909-21grep09:47:060
477994929cyclictest21909-21grep09:47:060
477994929cyclictest10311-21df09:26:550
477994929cyclictest10311-21df09:26:550
477994928cyclictest3604-21meminfo10:12:030
477994928cyclictest3604-21meminfo10:12:030
477994928cyclictest1754-21/usr/sbin/munin11:06:570
477994928cyclictest1754-21/usr/sbin/munin11:06:570
477994927cyclictest25889-21df_inode08:41:560
477994927cyclictest25889-21df_inode08:41:560
477994927cyclictest18570-21latency_hist11:36:420
477994927cyclictest18570-21latency_hist11:36:420
477994925cyclictest0-21swapper/012:31:570
477994925cyclictest0-21swapper/012:31:570
477994924cyclictest31068-21munin-run09:01:410
477994924cyclictest31068-21munin-run09:01:410
477994924cyclictest31068-21munin-run09:01:410
477994918cyclictest0-21swapper/011:26:140
477994918cyclictest0-21swapper/011:26:140
477994829cyclictest30041-21/usr/sbin/munin11:57:060
477994829cyclictest30041-21/usr/sbin/munin11:57:060
477994828cyclictest25514-21munin-run08:41:410
477994828cyclictest25514-21munin-run08:41:410
477994828cyclictest17659-21irqstats10:37:000
477994828cyclictest17659-21irqstats10:37:000
477994828cyclictest17659-21irqstats10:37:000
477994826cyclictest3239-21apt-get12:06:520
477994826cyclictest3239-21apt-get12:06:520
477994826cyclictest3239-21apt-get12:06:520
477994823cyclictest0-21swapper/009:22:060
477994823cyclictest0-21swapper/009:22:060
477994823cyclictest0-21swapper/009:22:060
477994822cyclictest9140-21diskstats10:21:560
477994822cyclictest9140-21diskstats10:21:560
477994819cyclictest0-21swapper/011:21:430
477994819cyclictest0-21swapper/011:21:430
477994727cyclictest9164-21df12:16:540
477994727cyclictest9164-21df12:16:540
477994727cyclictest9164-21df12:16:540
477994727cyclictest5384-21/usr/sbin/munin09:17:090
477994727cyclictest5384-21/usr/sbin/munin09:17:090
477994727cyclictest5384-21/usr/sbin/munin09:17:090
477994724cyclictest0-21swapper/012:06:260
477994724cyclictest0-21swapper/012:06:260
477994724cyclictest0-21swapper/012:06:260
477994637cyclictest13016-21apt-get11:26:510
477994637cyclictest13016-21apt-get11:26:510
477994629cyclictest3812-21meminfo07:22:040
477994629cyclictest3812-21meminfo07:22:040
477994629cyclictest21897-21diskstats11:41:580
477994629cyclictest21897-21diskstats11:41:580
477994629cyclictest21897-21diskstats11:41:580
477994628cyclictest7381-21ssh11:16:440
477994628cyclictest7381-21ssh11:16:440
477994628cyclictest20281-21df08:21:570
477994628cyclictest20281-21df08:21:570
477994627cyclictest3300-21date07:21:430
477994627cyclictest3300-21date07:21:430
477994627cyclictest3300-21date07:21:430
477994627cyclictest1958-21snmpd10:53:040
477994627cyclictest1958-21snmpd10:53:040
477994626cyclictest28780-21sh10:56:550
477994626cyclictest28780-21sh10:56:550
477994626cyclictest27631-21meminfo11:52:040
477994626cyclictest27631-21meminfo11:52:040
477994626cyclictest0-21swapper/011:47:420
477994626cyclictest0-21swapper/011:47:420
477994626cyclictest0-21swapper/011:47:420
477994626cyclictest0-21swapper/007:46:570
477994626cyclictest0-21swapper/007:46:570
477994625cyclictest24614-21latency09:52:000
477994625cyclictest24614-21latency09:52:000
477994625cyclictest1641-21/usr/sbin/munin09:11:530
477994625cyclictest1641-21/usr/sbin/munin09:11:530
46050460irq/122-QManpo0-210
46050460irq/122-QManpo0-210
477994536cyclictest690-21ntp_states09:07:070
477994536cyclictest690-21ntp_states09:07:070
477994536cyclictest690-21ntp_states09:07:070
477994528cyclictest1959-21runrttasks10:50:510
477994528cyclictest1959-21runrttasks10:50:510
477994527cyclictest15444-21ssh09:36:070
477994527cyclictest15444-21ssh09:36:070
477994527cyclictest15444-21ssh09:36:070
477994525cyclictest14222-21ssh10:31:390
477994525cyclictest14222-21ssh10:31:390
477994524cyclictest0-21swapper/008:06:530
477994524cyclictest0-21swapper/008:06:530
477994523cyclictest0-21swapper/011:39:240
477994523cyclictest0-21swapper/011:39:240
477994523cyclictest0-21swapper/011:39:240
477994428cyclictest11770-21apt-get07:51:530
477994428cyclictest11770-21apt-get07:51:530
477994426cyclictest8849-21latency_hist07:41:420
477994426cyclictest8849-21latency_hist07:41:420
477994426cyclictest8838-21apt-get07:42:030
477994426cyclictest8838-21apt-get07:42:030
477994426cyclictest1941-21ssh10:09:020
477994426cyclictest1941-21ssh10:09:020
477994426cyclictest1941-21ssh10:09:020
477994425cyclictest28583-21ssh09:58:300
477994425cyclictest28583-21ssh09:58:300
477994425cyclictest28583-21ssh09:58:300
477994424cyclictest8893-1kworker/0:2H08:21:460
477994424cyclictest8893-1kworker/0:2H08:21:460
477994424cyclictest15034-21grep12:27:030
477994424cyclictest15034-21grep12:27:030
477994424cyclictest15034-21grep12:27:030
477994423cyclictest31533-21irqstats09:02:010
477994423cyclictest31533-21irqstats09:02:010
71430rcu_preempt0-21swapper/112:12:351
71430rcu_preempt0-21swapper/112:12:351
71430rcu_preempt0-21swapper/008:27:000
71430rcu_preempt0-21swapper/008:27:000
477994328cyclictest27042-21/usr/sbin/munin08:46:500
477994328cyclictest27042-21/usr/sbin/munin08:46:500
477994233cyclictest28424-21apt-get08:51:500
477994233cyclictest28424-21apt-get08:51:500
477994229cyclictest1959-21runrttasks07:14:400
477994229cyclictest1959-21runrttasks07:14:400
477994229cyclictest1959-21runrttasks07:14:400
477994227cyclictest13149-21/usr/sbin/munin07:57:070
477994227cyclictest13149-21/usr/sbin/munin07:57:070
477994226cyclictest15200-21grep08:02:080
477994226cyclictest15200-21grep08:02:080
477994132cyclictest6556-21meminfo12:12:010
477994132cyclictest6556-21meminfo12:12:010
477994125cyclictest23518-21awk08:32:050
477994125cyclictest23518-21awk08:32:050
71400rcu_preempt9320-21taskset11:19:261
71400rcu_preempt9320-21taskset11:19:261
71400rcu_preempt0-21swapper/209:02:272
71400rcu_preempt0-21swapper/209:02:272
477994031cyclictest17311-21apt-get08:11:520
477994031cyclictest17311-21apt-get08:11:520
71390rcu_preempt19960-21apt-get08:22:111
71390rcu_preempt19960-21apt-get08:22:111
71390rcu_preempt1981-1kworker/2:1H12:04:142
71390rcu_preempt1981-1kworker/2:1H12:04:142
71390rcu_preempt1981-1kworker/2:1H12:04:142
71390rcu_preempt16029-21runrttasks12:28:342
71390rcu_preempt16029-21runrttasks12:28:342
71390rcu_preempt16029-21runrttasks12:28:342
71390rcu_preempt10999-1kworker/2:3H10:32:082
71390rcu_preempt10999-1kworker/2:3H10:32:082
71390rcu_preempt0-21swapper/310:02:073
71390rcu_preempt0-21swapper/310:02:073
71390rcu_preempt0-21swapper/310:02:073
71390rcu_preempt0-21swapper/211:55:412
71390rcu_preempt0-21swapper/211:55:412
71390rcu_preempt0-21swapper/110:31:331
71390rcu_preempt0-21swapper/110:31:331
71380rcu_preempt1466-21diskmemload10:53:312
71380rcu_preempt1466-21diskmemload10:53:312
71380rcu_preempt0-21swapper/209:48:022
71380rcu_preempt0-21swapper/209:48:022
71380rcu_preempt0-21swapper/209:48:022
71380rcu_preempt0-21swapper/207:41:532
71380rcu_preempt0-21swapper/207:41:532
71380rcu_preempt0-21swapper/112:41:411
71380rcu_preempt0-21swapper/112:41:411
71380rcu_preempt0-21swapper/109:36:451
71380rcu_preempt0-21swapper/109:36:451
71380rcu_preempt0-21swapper/109:36:451
71380rcu_preempt0-21swapper/107:46:591
71380rcu_preempt0-21swapper/107:46:591
46450380irq/118-QManpo0-2110:48:552
46450380irq/118-QManpo0-2110:48:552
156692380chrt46650irq/116-QMan10:48:553
156692380chrt46650irq/116-QMan10:48:553
71370rcu_preempt29062-21meminfo10:57:041
71370rcu_preempt29062-21meminfo10:57:041
71370rcu_preempt0-21swapper/307:41:593
71370rcu_preempt0-21swapper/307:41:593
71370rcu_preempt0-21swapper/212:22:212
71370rcu_preempt0-21swapper/212:22:212
71370rcu_preempt0-21swapper/107:42:021
71370rcu_preempt0-21swapper/107:42:021
71370rcu_preempt0-21swapper/107:21:531
71370rcu_preempt0-21swapper/107:21:531
71360rcu_preempt14250-21sh12:26:251
71360rcu_preempt14250-21sh12:26:251
71360rcu_preempt0-21swapper/312:21:193
71360rcu_preempt0-21swapper/312:21:193
71360rcu_preempt0-21swapper/312:21:193
71360rcu_preempt0-21swapper/309:57:053
71360rcu_preempt0-21swapper/309:57:053
71360rcu_preempt0-21swapper/309:57:053
71360rcu_preempt0-21swapper/211:46:222
71360rcu_preempt0-21swapper/211:46:222
71360rcu_preempt0-21swapper/211:46:222
71360rcu_preempt0-21swapper/211:05:212
71360rcu_preempt0-21swapper/211:05:212
71360rcu_preempt0-21swapper/211:05:212
71360rcu_preempt0-21swapper/210:39:392
71360rcu_preempt0-21swapper/210:39:392
71360rcu_preempt0-21swapper/210:39:392
71360rcu_preempt0-21swapper/112:27:481
71360rcu_preempt0-21swapper/112:27:481
71360rcu_preempt0-21swapper/112:27:481
71360rcu_preempt0-21swapper/112:06:051
71360rcu_preempt0-21swapper/112:06:051
71360rcu_preempt0-21swapper/112:06:051
71360rcu_preempt0-21swapper/111:38:501
71360rcu_preempt0-21swapper/111:38:501
71360rcu_preempt0-21swapper/111:38:501
71360rcu_preempt0-21swapper/110:56:191
71360rcu_preempt0-21swapper/110:56:191
71360rcu_preempt0-21swapper/110:47:501
71360rcu_preempt0-21swapper/110:47:501
71350rcu_preempt32653-21ssh10:06:512
71350rcu_preempt32653-21ssh10:06:512
71350rcu_preempt32653-21ssh10:06:512
71350rcu_preempt22055-21sh10:44:492
71350rcu_preempt22055-21sh10:44:492
71350rcu_preempt22055-21sh10:44:492
71350rcu_preempt18739-21apt-get09:41:542
71350rcu_preempt18739-21apt-get09:41:542
71350rcu_preempt18739-21apt-get09:41:542
71350rcu_preempt0-21swapper/212:41:422
71350rcu_preempt0-21swapper/212:41:422
71350rcu_preempt0-21swapper/211:16:032
71350rcu_preempt0-21swapper/211:16:032
71350rcu_preempt0-21swapper/211:08:032
71350rcu_preempt0-21swapper/211:08:032
71350rcu_preempt0-21swapper/209:27:572
71350rcu_preempt0-21swapper/209:27:572
71350rcu_preempt0-21swapper/209:11:482
71350rcu_preempt0-21swapper/209:11:482
71350rcu_preempt0-21swapper/208:57:082
71350rcu_preempt0-21swapper/208:57:082
71350rcu_preempt0-21swapper/208:57:082
71350rcu_preempt0-21swapper/208:36:212
71350rcu_preempt0-21swapper/208:36:212
71350rcu_preempt0-21swapper/207:41:492
71350rcu_preempt0-21swapper/112:32:151
71350rcu_preempt0-21swapper/112:32:151
71350rcu_preempt0-21swapper/112:09:101
71350rcu_preempt0-21swapper/112:09:101
71350rcu_preempt0-21swapper/112:09:101
71350rcu_preempt0-21swapper/111:44:151
71350rcu_preempt0-21swapper/111:44:151
71350rcu_preempt0-21swapper/111:44:151
71350rcu_preempt0-21swapper/111:23:141
71350rcu_preempt0-21swapper/111:23:141
71350rcu_preempt0-21swapper/111:06:541
71350rcu_preempt0-21swapper/111:06:541
71350rcu_preempt0-21swapper/111:05:301
71350rcu_preempt0-21swapper/111:05:301
71350rcu_preempt0-21swapper/111:05:301
71350rcu_preempt0-21swapper/110:45:341
71350rcu_preempt0-21swapper/110:45:341
71350rcu_preempt0-21swapper/110:45:341
71350rcu_preempt0-21swapper/110:38:441
71350rcu_preempt0-21swapper/110:38:441
71350rcu_preempt0-21swapper/110:38:441
71350rcu_preempt0-21swapper/110:33:201
71350rcu_preempt0-21swapper/110:33:201
71350rcu_preempt0-21swapper/110:09:121
71350rcu_preempt0-21swapper/110:09:121
71350rcu_preempt0-21swapper/110:09:121
71350rcu_preempt0-21swapper/110:04:211
71350rcu_preempt0-21swapper/110:04:211
71350rcu_preempt0-21swapper/110:04:211
46250350irq/120-QManpo31625-211
46250350irq/120-QManpo31625-211
71340rcu_preempt6104-1kworker/2:0H07:31:452
71340rcu_preempt6104-1kworker/2:0H07:31:452
71340rcu_preempt28390-1kworker/1:2H11:54:301
71340rcu_preempt28390-1kworker/1:2H11:54:301
71340rcu_preempt11478-21latency_hist10:26:482
71340rcu_preempt11478-21latency_hist10:26:482
71340rcu_preempt0-21swapper/212:20:362
71340rcu_preempt0-21swapper/212:20:362
71340rcu_preempt0-21swapper/212:20:362
71340rcu_preempt0-21swapper/212:14:012
71340rcu_preempt0-21swapper/212:14:012
71340rcu_preempt0-21swapper/211:26:002
71340rcu_preempt0-21swapper/211:26:002
71340rcu_preempt0-21swapper/209:54:032
71340rcu_preempt0-21swapper/209:54:032
71340rcu_preempt0-21swapper/209:37:052
71340rcu_preempt0-21swapper/209:37:052
71340rcu_preempt0-21swapper/209:37:052
71340rcu_preempt0-21swapper/208:02:082
71340rcu_preempt0-21swapper/208:02:082
71340rcu_preempt0-21swapper/111:35:201
71340rcu_preempt0-21swapper/111:35:201
71340rcu_preempt0-21swapper/111:14:541
71340rcu_preempt0-21swapper/111:14:541
71340rcu_preempt0-21swapper/109:48:461
71340rcu_preempt0-21swapper/109:48:461
71340rcu_preempt0-21swapper/109:48:461
71340rcu_preempt0-21swapper/109:38:481
71340rcu_preempt0-21swapper/109:38:481
71340rcu_preempt0-21swapper/109:38:481
71340rcu_preempt0-21swapper/109:26:471
71340rcu_preempt0-21swapper/109:26:471
71340rcu_preempt0-21swapper/109:26:471
71340rcu_preempt0-21swapper/108:54:271
71340rcu_preempt0-21swapper/108:54:271
71330rcu_preempt9360-1kworker/2:1H09:25:522
71330rcu_preempt9360-1kworker/2:1H09:25:522
71330rcu_preempt9360-1kworker/2:1H09:25:522
71330rcu_preempt8718-21sendmail-msp10:24:173
71330rcu_preempt8718-21sendmail-msp10:24:173
71330rcu_preempt28742-21sh09:58:561
71330rcu_preempt28742-21sh09:58:561
71330rcu_preempt28742-21sh09:58:561
71330rcu_preempt24466-21df11:46:551
71330rcu_preempt24466-21df11:46:551
71330rcu_preempt24466-21df11:46:551
71330rcu_preempt0-21swapper/311:05:013
71330rcu_preempt0-21swapper/311:05:013
71330rcu_preempt0-21swapper/311:05:013
71330rcu_preempt0-21swapper/308:22:123
71330rcu_preempt0-21swapper/308:22:123
71330rcu_preempt0-21swapper/212:07:132
71330rcu_preempt0-21swapper/212:07:132
71330rcu_preempt0-21swapper/212:07:132
71330rcu_preempt0-21swapper/212:00:002
71330rcu_preempt0-21swapper/212:00:002
71330rcu_preempt0-21swapper/211:37:132
71330rcu_preempt0-21swapper/211:37:132
71330rcu_preempt0-21swapper/211:37:132
71330rcu_preempt0-21swapper/211:19:212
71330rcu_preempt0-21swapper/211:19:212
71330rcu_preempt0-21swapper/210:59:042
71330rcu_preempt0-21swapper/210:59:042
71330rcu_preempt0-21swapper/210:20:192
71330rcu_preempt0-21swapper/210:20:192
71330rcu_preempt0-21swapper/210:20:192
71330rcu_preempt0-21swapper/210:13:552
71330rcu_preempt0-21swapper/210:13:552
71330rcu_preempt0-21swapper/210:02:282
71330rcu_preempt0-21swapper/210:02:282
71330rcu_preempt0-21swapper/210:02:282
71330rcu_preempt0-21swapper/209:34:272
71330rcu_preempt0-21swapper/209:34:272
71330rcu_preempt0-21swapper/209:34:272
71330rcu_preempt0-21swapper/209:17:042
71330rcu_preempt0-21swapper/209:17:042
71330rcu_preempt0-21swapper/209:17:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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