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2026-05-21 - 00:04
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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 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
262522278248,20sleep20-21swapper/207:07:292
263612273244,17sleep30-21swapper/307:08:383
263432263233,19sleep00-21swapper/007:08:230
263442258231,18sleep10-21swapper/107:08:241
71322620,0sleep00-21swapper/012:20:110
262822620,0sleep30-21swapper/312:31:073
11632610,0sleep00-21swapper/012:15:590
146812580,0sleep30-21swapper/312:05:133
176872560,0sleep10-21swapper/110:29:131
56072550,0sleep00-21swapper/008:45:120
294202550,0sleep10-21swapper/112:33:331
282592550,0sleep20-21swapper/211:34:312
51392530,0sleep00-21swapper/011:00:180
63612210,0sleep20-21swapper/209:42:322
301802190,0sleep30-21swapper/310:16:293
18612190,0sleep10-21swapper/112:16:311
150612190,0sleep30-21swapper/310:27:103
41352180,0sleep30-21swapper/310:00:243
176532180,0sleep00-21swapper/010:09:340
55982170,0sleep00-21swapper/010:21:110
86712160,0sleep10-21swapper/111:02:361
121782160,0sleep10-21swapper/109:45:401
314512150,0sleep30-21swapper/309:57:513
167752150,0sleep20-21swapper/210:47:522
127552140,0sleep10-21swapper/109:26:291
44352130,0sleep00-21swapper/012:37:570
265749990,8cyclictest10058-21gltestperf09:25:123
6690280,0sleep30-21swapper/308:45:183
265749985,2cyclictest34-21ksoftirqd/312:20:003
265709982,3cyclictest549-21grep08:35:002
265639984,3cyclictest275-21systemd-journal10:41:110
265639984,3cyclictest275-21systemd-journal08:32:230
265639980,2cyclictest14190-21ssh11:45:130
22318280,0sleep30-21swapper/309:12:583
265749974,2cyclictest10571-21sshd11:23:353
265749973,3cyclictest275-21systemd-journal07:27:453
265709975,1cyclictest20632-21munin-plugin-st11:30:002
265709974,2cyclictest9451-21cron08:55:012
265709973,3cyclictest6232-21ntpq08:45:162
265709973,3cyclictest275-21systemd-journal09:58:312
265709973,2cyclictest275-21systemd-journal12:13:442
265709971,3cyclictest24064-21munin-run08:15:012
265709970,4cyclictest18266-21perf10:10:012
265709970,4cyclictest12978-21perf11:45:002
265689973,3cyclictest658-21snmpd08:59:311
265689973,3cyclictest0-21swapper/109:19:501
265689973,1cyclictest0-21swapper/111:50:331
265639975,1cyclictest12-21ksoftirqd/011:25:000
265639974,2cyclictest504-21dbus-daemon08:55:030
265639973,3cyclictest658-21snmpd07:28:440
265639973,3cyclictest658-21snmpd07:12:030
265639973,3cyclictest275-21systemd-journal08:15:010
20949270,0chrt0-21swapper/209:31:272
18324270,0sleep20-21swapper/212:07:082
265749966,0cyclictest0-21swapper/312:01:143
265749966,0cyclictest0-21swapper/311:46:543
265749966,0cyclictest0-21swapper/310:35:503
265749966,0cyclictest0-21swapper/308:50:203
265749966,0cyclictest0-21swapper/307:50:183
265749963,2cyclictest8389-21sh11:02:233
265749963,2cyclictest7724-21ssh10:42:263
265749963,2cyclictest504-21dbus-daemon08:00:013
265749963,2cyclictest504-21dbus-daemon07:38:103
265749963,2cyclictest34-21ksoftirqd/307:10:143
265749963,2cyclictest31727-21sh09:38:263
265749963,2cyclictest29205-21fschecks_count08:25:153
265749963,2cyclictest275-21systemd-journal12:39:103
265749963,2cyclictest275-21systemd-journal12:28:443
265749963,2cyclictest25265-21ssh11:51:303
265749963,2cyclictest23540-21grep12:10:173
265749963,1cyclictest0-21swapper/310:10:563
265749962,3cyclictest658-21snmpd11:18:063
265749962,3cyclictest658-21snmpd11:10:093
265749962,3cyclictest658-21snmpd10:54:383
265749962,3cyclictest658-21snmpd09:47:183
265749962,3cyclictest658-21snmpd09:40:343
265749962,3cyclictest658-21snmpd08:43:033
265749962,3cyclictest658-21snmpd08:34:423
265749962,3cyclictest658-21snmpd08:00:473
265749962,3cyclictest275-21systemd-journal11:55:193
265749962,3cyclictest2362-21cut09:20:163
265749962,3cyclictest13190-21ntpq09:00:183
265749962,3cyclictest12857-21expr11:05:153
265749962,3cyclictest12195-21cat09:00:013
265749962,3cyclictest12027-21ls10:45:113
265749962,3cyclictest11156-21which10:05:133
265749962,1cyclictest141rcu_preempt11:30:123
265749962,1cyclictest0-21swapper/310:33:173
265749961,3cyclictest275-21systemd-journal10:21:523
265749960,6cyclictest0-21swapper/311:36:203
265749960,6cyclictest0-21swapper/309:15:063
265749960,5cyclictest5131-21cat07:30:183
265749960,3cyclictest10883-21rm12:22:093
265749960,2cyclictest5153-21/usr/sbin/munin11:40:123
265749960,2cyclictest11635-21ntp_states07:45:183
265749960,0cyclictest0-21swapper/310:59:033
265709966,0cyclictest0-21swapper/208:20:202
265709964,1cyclictest26313-21tr08:20:012
265709963,2cyclictest9596-21sendmail_mailst07:40:182
265709963,2cyclictest7801-21sshd10:03:172
265709963,2cyclictest658-21snmpd08:26:442
265709963,2cyclictest20280-21ntpq10:30:172
265709963,2cyclictest19157-21ssh10:10:142
265709963,2cyclictest13610-21sh10:26:022
265709963,2cyclictest10256-21sh12:21:402
265709963,1cyclictest0-21swapper/209:19:572
265709962,3cyclictest674-21lldpd07:25:522
265709962,3cyclictest658-21snmpd11:58:012
265709962,3cyclictest658-21snmpd11:51:422
265709962,3cyclictest658-21snmpd11:37:352
265709962,3cyclictest658-21snmpd11:15:572
265709962,3cyclictest658-21snmpd10:35:402
265709962,3cyclictest658-21snmpd07:57:202
265709962,3cyclictest658-21snmpd07:38:022
265709962,3cyclictest658-21snmpd07:34:142
265709962,3cyclictest658-21snmpd07:16:132
265709962,3cyclictest275-21systemd-journal07:48:112
265709962,3cyclictest24260-21cat12:30:132
265709962,3cyclictest2327-21sh10:20:012
265709962,3cyclictest1224-21sshd07:22:432
265709962,2cyclictest5040-21awk08:45:012
265709962,1cyclictest0-21swapper/211:00:242
265709962,1cyclictest0-21swapper/210:40:132
265709962,1cyclictest0-21swapper/209:36:552
265709961,4cyclictest14342-21grep11:45:132
265709961,4cyclictest141rcu_preempt09:10:172
265709960,6cyclictest0-21swapper/212:17:322
265709960,6cyclictest0-21swapper/211:24:442
265709960,6cyclictest0-21swapper/211:05:292
265709960,6cyclictest0-21swapper/209:27:402
265709960,0cyclictest0-21swapper/210:56:062
265689966,0cyclictest0-21swapper/111:16:231
265689966,0cyclictest0-21swapper/110:38:521
265689966,0cyclictest0-21swapper/110:20:491
265689963,2cyclictest658-21snmpd10:31:111
265689963,2cyclictest658-21snmpd10:05:341
265689963,2cyclictest658-21snmpd08:24:321
265689963,2cyclictest658-21snmpd08:10:081
265689963,2cyclictest504-21dbus-daemon12:25:501
265689963,2cyclictest504-21dbus-daemon07:40:011
265689963,2cyclictest32272-21cat07:20:131
265689963,2cyclictest30577-21sshd08:28:001
265689963,2cyclictest29551-21sh10:15:591
265689963,2cyclictest275-21systemd-journal11:57:251
265689963,2cyclictest275-21systemd-journal11:31:341
265689963,2cyclictest18991-21cat09:50:151
265689963,2cyclictest15540-21fschecks_count07:55:151
265689963,2cyclictest14529-21ssh12:24:591
265689963,2cyclictest13654-21cat11:25:151
265689963,2cyclictest1-21systemd08:30:191
265689963,2cyclictest10115-21ssh11:42:491
265689963,1cyclictest275-21systemd-journal08:52:081
265689963,1cyclictest0-21swapper/110:41:581
265689962,3cyclictest658-21snmpd12:11:091
265689962,3cyclictest658-21snmpd12:00:431
265689962,3cyclictest658-21snmpd11:35:421
265689962,3cyclictest658-21snmpd10:56:321
265689962,3cyclictest658-21snmpd10:11:421
265689962,3cyclictest658-21snmpd09:23:531
265689962,3cyclictest658-21snmpd08:18:381
265689962,3cyclictest658-21snmpd08:06:321
265689962,3cyclictest658-21snmpd07:45:501
265689962,3cyclictest658-21snmpd07:15:001
265689962,3cyclictest26787-21cut09:35:161
265689962,3cyclictest18317-21cat08:00:141
265689962,3cyclictest15306-21ntp_kernel_pll_12:05:161
265689962,1cyclictest0-21swapper/110:03:071
265689961,4cyclictest28322-21cron11:15:011
265689960,6cyclictest0-21swapper/111:06:181
265689960,6cyclictest0-21swapper/109:31:301
265689960,6cyclictest0-21swapper/107:12:131
265689960,0cyclictest0-21swapper/111:48:451
265689960,0cyclictest0-21swapper/107:50:211
265639966,0cyclictest0-21swapper/010:58:100
265639966,0cyclictest0-21swapper/010:45:470
265639966,0cyclictest0-21swapper/009:33:000
265639964,1cyclictest12-21ksoftirqd/011:55:000
265639963,2cyclictest7600-21ssh11:40:520
265639963,2cyclictest658-21snmpd11:19:450
265639963,2cyclictest2871-21expr10:00:130
265639963,2cyclictest27572-21ntp_states09:55:160
265639963,2cyclictest275-21systemd-journal09:04:120
265639963,2cyclictest24138-11brltty07:24:500
265639963,2cyclictest22484-21sh12:29:480
265639963,2cyclictest22336-21sh10:50:480
265639963,1cyclictest0-21swapper/010:35:260
265639962,3cyclictest658-21snmpd12:30:340
265639962,3cyclictest658-21snmpd11:26:270
265639962,3cyclictest658-21snmpd11:07:020
265639962,3cyclictest658-21snmpd10:26:490
265639962,3cyclictest658-21snmpd09:29:440
265639962,3cyclictest658-21snmpd09:16:160
265639962,3cyclictest658-21snmpd09:06:420
265639962,3cyclictest658-21snmpd08:35:090
265639962,3cyclictest658-21snmpd08:01:360
265639962,3cyclictest658-21snmpd07:30:170
265639962,3cyclictest504-21dbus-daemon08:24:120
265639962,3cyclictest28426-11brltty08:53:230
265639962,3cyclictest275-21systemd-journal08:29:560
265639962,3cyclictest20769-21expr11:10:130
265639962,3cyclictest18353-21sort09:50:130
265639962,3cyclictest17914-21if_enp4s009:10:140
265639962,3cyclictest15059-21date07:55:000
265639962,2cyclictest275-21systemd-journal09:48:310
265639962,1cyclictest0-21swapper/011:57:280
265639962,1cyclictest0-21swapper/009:39:460
265639961,4cyclictest18733-21ssh10:10:120
265639961,4cyclictest0-21swapper/011:30:110
265639960,6cyclictest0-21swapper/012:04:120
265639960,0cyclictest141rcu_preempt10:30:110
265639960,0cyclictest0-21swapper/012:08:170
26340260,0sleep00-21swapper/012:11:580
265749953,1cyclictest29332-21gltestperf07:15:023
265749953,1cyclictest25520-21sensors_temp08:15:193
265749953,1cyclictest22265-21tr08:10:133
265749953,1cyclictest18739-21fschecks_time09:50:143
265749952,2cyclictest658-21snmpd09:05:133
265749952,2cyclictest658-21snmpd07:40:353
265749952,2cyclictest658-21snmpd07:20:013
265749952,2cyclictest27528-21ntpq08:20:163
265749952,2cyclictest20901-21ls08:05:173
265749952,2cyclictest18482-21basename09:30:143
265749952,2cyclictest1797-21awk08:35:143
265749952,2cyclictest12666-21ssh11:25:013
265709952,2cyclictest6812-21cat12:00:152
265709952,2cyclictest658-21snmpd12:35:112
265709952,2cyclictest658-21snmpd07:10:042
265709952,2cyclictest2598-21sh10:20:032
265709952,2cyclictest2579-21taskset08:37:482
265709952,2cyclictest20163-21expr08:05:132
265709952,2cyclictest19433-21sshd08:02:552
265709952,2cyclictest19283-21ntp_kernel_pll_09:50:172
265709952,2cyclictest15307-21expr09:05:142
265709952,2cyclictest13041-21cut07:50:132
265709952,2cyclictest12939-21cat09:00:172
265709952,2cyclictest11055-21grep08:55:182
265709952,2cyclictest10374-21expr09:45:132
265709951,3cyclictest20917-21cat11:10:132
265709951,3cyclictest20476-21/usr/sbin/munin10:50:142
265709950,4cyclictest15065-21ssh12:25:112
265709950,3cyclictest275-21systemd-journal09:20:042
265689953,1cyclictest31915-21cpuspeed_turbos12:35:121
265689952,2cyclictest658-21snmpd10:45:081
265689952,2cyclictest658-21snmpd09:10:041
265689952,2cyclictest658-21snmpd07:25:011
265689952,2cyclictest5439-21cut08:45:121
265689952,2cyclictest504-21dbus-daemon09:40:091
265689952,2cyclictest4703-21seq08:41:201
265689952,2cyclictest27249-21cat09:55:151
265689952,2cyclictest15059-21expr09:05:131
265689951,3cyclictest9096-21basename07:40:151
265689951,3cyclictest5419-21irqstats11:20:141
265689951,3cyclictest4493-21hddtemp_smartct07:30:151
265689950,4cyclictest14220-21latency_hist09:05:011
265689950,3cyclictest275-21systemd-journal10:50:061
265639953,1cyclictest24649-21expr08:15:130
265639952,2cyclictest9035-21expr07:40:140
265639952,2cyclictest658-21snmpd07:45:010
265639952,2cyclictest31394-21sshd07:17:430
265639952,2cyclictest2993-21rm09:20:190
265639952,2cyclictest29362-21rm11:35:120
265639952,2cyclictest15276-21tr07:55:140
265639951,3cyclictest658-21snmpd10:15:100
265639951,3cyclictest6507-21/usr/sbin/munin07:35:130
265639951,3cyclictest2265-21tune2fs09:40:130
265639950,4cyclictest3203-21grep08:40:130
265689940,3cyclictest882-21cat08:35:101
265639941,2cyclictest658-21snmpd08:05:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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