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2026-07-18 - 23:09
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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 the highest latencies:
System rack1slot2.osadl.org (updated Sat Jul 18, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3038723728,0sleep20-21swapper/207:24:422
3033823728,0sleep30-21swapper/307:24:073
3028523526,0sleep10-21swapper/107:23:291
3051223127,0sleep00-21swapper/007:26:080
8305060,0irq/26-0000:00:18486-21processes12:28:233
339960,0migration/33801-21sh11:08:543
339960,0migration/332134-21sh10:48:333
339960,0migration/331713-21munin-node08:58:113
339960,0migration/319056-21irqrtprio10:08:153
339960,0migration/315120-21sh10:40:523
307439960,0cyclictest0-21swapper/211:38:262
307429966,0cyclictest21471-21awk08:28:161
307419965,0cyclictest18423-21ssh09:32:540
29805060,0irq/28-eth0-rx-31379-21grep10:33:143
29805060,0irq/28-eth0-rx-17163-21cut10:23:153
29805060,0irq/28-eth0-rx-17163-21cut10:23:153
29805060,0irq/28-eth0-rx-10626-21perl11:33:143
8305050,0irq/26-0000:00:0-21swapper/310:57:593
4150,0ktimersoftd/00-21swapper/010:00:300
339950,0migration/37796-21kthreadcore11:13:173
339950,0migration/34804-21cpuspeed_turbos09:43:103
339950,0migration/34700-21kthreadcore07:53:153
339950,0migration/33316-21diskmemload12:03:183
339950,0migration/332493-21munin-node07:28:173
339950,0migration/332077-21gltestperf08:13:123
339950,0migration/330105-21munin-node08:08:213
339950,0migration/325101-21sh12:15:503
339950,0migration/323518-21gltestperf11:58:133
339950,0migration/322778-21munin-node12:33:173
339950,0migration/322442-21munin-node10:28:153
339950,0migration/319733-21munin-node09:33:123
339950,0migration/319147-21kthreadcore09:48:183
339950,0migration/316788-21fschecks_time12:48:133
339950,0migration/315334-21kthreadcore08:43:173
339950,0migration/314539-21kthreadcore09:28:193
339950,0migration/313321-21taskset07:38:103
329950,0watchdog/37366-21munin-node11:28:263
329950,0watchdog/330970-21perl12:38:143
329950,0watchdog/313249-21sensors12:43:223
329950,0watchdog/311740-21kthreadcore10:03:183
307439955,0cyclictest0-21swapper/211:48:222
307439955,0cyclictest0-21swapper/210:22:362
307439954,0cyclictest3524-21snmpd11:34:362
307439953,0cyclictest22800-21ssh11:20:522
307439952,0cyclictest7358-21diskstats12:43:132
307439952,0cyclictest28150-21perl07:48:132
307439952,0cyclictest28145-21df11:43:112
307439952,0cyclictest22336-21python12:48:232
307439951,0cyclictest4511-21munin-node09:43:212
307439950,0cyclictest0-21swapper/212:18:472
307439950,0cyclictest0-21swapper/210:28:352
307429955,0cyclictest0-21swapper/110:54:071
307419955,0cyclictest0-21swapper/010:18:380
307419955,0cyclictest0-21swapper/010:11:040
307419954,0cyclictest3524-21snmpd10:45:060
307419950,0cyclictest0-21swapper/010:41:480
307419950,0cyclictest0-21swapper/008:44:210
29815050,0irq/29-eth0-tx-23956-21munin-node08:08:200
29815050,0irq/29-eth0-tx-0-21swapper/009:15:460
29805050,0irq/28-eth0-rx-5505-21ntp_offset09:58:193
29805050,0irq/28-eth0-rx-24305-21kthreadcore08:28:183
29805050,0irq/28-eth0-rx-24223-21ssh09:53:133
29805050,0irq/28-eth0-rx-0-21swapper/312:17:593
29805050,0irq/28-eth0-rx-0-21swapper/312:11:233
29805050,0irq/28-eth0-rx-0-21swapper/311:56:163
29805050,0irq/28-eth0-rx-0-21swapper/311:48:173
29805050,0irq/28-eth0-rx-0-21swapper/311:38:133
29805050,0irq/28-eth0-rx-0-21swapper/311:23:213
29805050,0irq/28-eth0-rx-0-21swapper/311:19:183
29805050,0irq/28-eth0-rx-0-21swapper/311:03:283
29805050,0irq/28-eth0-rx-0-21swapper/310:52:593
29805050,0irq/28-eth0-rx-0-21swapper/310:43:173
29805050,0irq/28-eth0-rx-0-21swapper/310:18:423
29805050,0irq/28-eth0-rx-0-21swapper/310:17:283
29805050,0irq/28-eth0-rx-0-21swapper/309:41:263
29805050,0irq/28-eth0-rx-0-21swapper/309:18:133
29805050,0irq/28-eth0-rx-0-21swapper/309:03:163
179950,0migration/13398-21fschecks_time09:23:121
179950,0migration/127005-21kthreadcore08:53:141
179950,0migration/126905-21cpuspeed_turbos10:13:131
179950,0migration/125630-21sh11:38:411
179950,0migration/122993-21munin-node08:03:241
179950,0migration/122885-21kthreadcore07:43:151
179950,0migration/119928-21sh10:25:181
179950,0migration/119928-21sh10:25:181
169950,0watchdog/131992-21kthreadcore12:38:181
169950,0watchdog/115899-21ssh12:48:061
149950,0migration/09924-21kthreadcore12:43:170
149950,0migration/09822-21cpuspeed_turbos07:58:110
149950,0migration/07001-21sh08:18:130
149950,0migration/05270-21fschecks_time11:48:120
149950,0migration/030904-21kthreadcore08:33:160
149950,0migration/029877-21taskset11:59:510
149950,0migration/02822-21df_abs08:38:110
149950,0migration/026236-21latency08:28:190
149950,0migration/023449-21kthreadcore11:38:180
149950,0migration/018295-21kthreadcore12:48:170
149950,0migration/016676-21sh10:06:440
149950,0migration/015019-21irqrtprio11:53:150
339940,0migration/39642-21kthreadcore07:33:143
339940,0migration/37315-21irqcore08:18:153
339940,0migration/36350-21kthreadcore08:38:163
339940,0migration/318456-21taskset08:48:173
329940,0watchdog/30-21swapper/309:10:373
329940,0watchdog/30-21swapper/308:03:173
329940,0watchdog/30-21swapper/307:48:133
307439944,0cyclictest271ktimersoftd/209:28:032
307439943,0cyclictest8342-21awk10:38:132
307439943,0cyclictest7113-21sed09:03:112
307439943,0cyclictest28857-21awk09:38:132
307439943,0cyclictest23074-21df_inode09:53:092
307439942,0cyclictest9773-21aten2.4-expect08:43:102
307439942,0cyclictest9682-21munin-node07:58:102
307439942,0cyclictest8894-21sh10:03:132
307439942,0cyclictest8311-21sh12:08:102
307439942,0cyclictest6348-21df08:18:112
307439942,0cyclictest6188-21cut11:13:122
307439942,0cyclictest600-21aten2.4-expect11:28:112
307439942,0cyclictest5912-21aten2.4-expect07:33:072
307439942,0cyclictest32402-21perl12:03:142
307439942,0cyclictest32047-21df09:58:122
307439942,0cyclictest31849-21perl07:28:132
307439942,0cyclictest3170-21aten2.4-expect12:23:112
307439942,0cyclictest31621-21df08:58:112
307439942,0cyclictest31560-21diskstats08:13:112
307439942,0cyclictest30656-21aten_r1power_po10:33:122
307439942,0cyclictest30251-21aten2.4-expect12:38:122
307439942,0cyclictest3003-21df_abs09:23:112
307439942,0cyclictest2958-21tune2fs08:38:112
307439942,0cyclictest29059-21date11:07:582
307439942,0cyclictest28507-21perl09:18:142
307439942,0cyclictest27722-21aten2.4-expect08:33:102
307439942,0cyclictest2711-21diskstats07:53:112
307439942,0cyclictest26961-21sed10:13:132
307439942,0cyclictest25576-21awk10:48:112
307439942,0cyclictest24927-21sh12:52:592
307439942,0cyclictest24749-21perl08:08:122
307439942,0cyclictest24465-21diskstats11:23:122
307439942,0cyclictest24433-21df08:53:092
307439942,0cyclictest22694-21hostname11:58:122
307439942,0cyclictest21377-21aten2.4-expect12:33:122
307439942,0cyclictest20860-21expr09:13:122
307439942,0cyclictest20857-21diskstats08:28:142
307439942,0cyclictest20272-21sh11:03:112
307439942,0cyclictest20266-21munin-node07:43:082
307439942,0cyclictest1967-21sh10:53:082
307439942,0cyclictest18995-21grep09:33:102
307439942,0cyclictest18334-21perl10:08:122
307439942,0cyclictest17727-21cut08:48:132
307439942,0cyclictest17479-21cpu12:13:112
307439942,0cyclictest16780-21df_inode10:43:132
307439942,0cyclictest16730-21sed08:02:582
307439942,0cyclictest14033-21diskstats09:48:122
307439942,0cyclictest13916-21df_abs11:53:112
307439942,0cyclictest13896-21perl07:38:112
307439942,0cyclictest13760-21df_abs09:08:132
307439942,0cyclictest13339-21cut08:23:102
307439942,0cyclictest12322-21sh10:23:032
307439942,0cyclictest12322-21sh10:23:032
307439942,0cyclictest12272-21sh12:28:132
307439942,0cyclictest11225-21munin-node10:58:112
307429944,0cyclictest0-21swapper/112:12:281
307429944,0cyclictest0-21swapper/109:52:191
307429943,0cyclictest3524-21snmpd12:54:521
307429943,0cyclictest3524-21snmpd12:13:361
307429943,0cyclictest3524-21snmpd11:56:211
307429943,0cyclictest3524-21snmpd10:51:511
307429943,0cyclictest3524-21snmpd10:18:051
307429943,0cyclictest3524-21snmpd09:59:351
307429943,0cyclictest3524-21snmpd09:15:491
307429943,0cyclictest3524-21snmpd09:03:191
307429943,0cyclictest3524-21snmpd08:40:491
307429943,0cyclictest23603-21awk11:58:151
307429943,0cyclictest13300-21sadc09:47:591
307429940,0cyclictest0-21swapper/111:22:201
307419944,0cyclictest0-21swapper/012:26:290
307419944,0cyclictest0-21swapper/010:58:120
307419944,0cyclictest0-21swapper/009:49:280
307419944,0cyclictest0-21swapper/008:58:040
307419943,0cyclictest3571-21lldpd12:28:060
307419943,0cyclictest3571-21lldpd12:16:350
307419943,0cyclictest3571-21lldpd11:28:050
307419943,0cyclictest3571-21lldpd11:18:040
307419943,0cyclictest3571-21lldpd10:52:040
307419943,0cyclictest3571-21lldpd08:57:320
307419943,0cyclictest3571-21lldpd07:43:020
307419943,0cyclictest3524-21snmpd11:27:210
307419943,0cyclictest3524-21snmpd09:39:350
307419943,0cyclictest3250-21irqbalance12:38:050
307419943,0cyclictest3250-21irqbalance12:03:450
307419943,0cyclictest3250-21irqbalance11:33:050
307419943,0cyclictest3250-21irqbalance11:04:050
307419943,0cyclictest3250-21irqbalance08:14:550
307419943,0cyclictest3250-21irqbalance08:03:350
307419943,0cyclictest3250-21irqbalance07:53:040
307419943,0cyclictest31656-21awk10:33:150
307419943,0cyclictest28946-21awk11:43:150
307419943,0cyclictest26170-21awk12:53:160
307419943,0cyclictest23706-21awk09:53:110
307419943,0cyclictest22544-21awk10:28:150
307419943,0cyclictest22370-21awk12:33:160
307419943,0cyclictest19813-21awk09:33:130
307419943,0cyclictest14410-21awk09:08:150
307419943,0cyclictest14159-21awk07:38:130
29815040,0irq/29-eth0-tx-0-21swapper/008:23:110
29815040,0irq/29-eth0-tx-0-21swapper/007:48:200
29805040,0irq/28-eth0-rx-0-21swapper/312:53:093
29805040,0irq/28-eth0-rx-0-21swapper/312:23:583
29805040,0irq/28-eth0-rx-0-21swapper/311:43:283
29805040,0irq/28-eth0-rx-0-21swapper/308:53:093
179940,0migration/19981-21kthreadcore11:13:181
179940,0migration/15965-21kthreadcore11:28:191
179940,0migration/15121-21timerandwakeup08:13:231
179940,0migration/1351-21kthreadcore09:38:161
179940,0migration/132570-21kthreadcore11:08:171
179940,0migration/130021-21kthreadcore12:18:201
179940,0migration/128400-21fschecks_count09:18:141
179940,0migration/127475-21kthreadcore09:53:141
179940,0migration/124783-21sh10:09:361
179940,0migration/12477-21kthreadcore12:03:181
179940,0migration/123460-21kthreadcore09:33:161
179940,0migration/118375-21kthreadcore10:43:171
179940,0migration/113881-21fschecks_time08:23:121
179940,0migration/112840-21runrttasks08:21:151
179940,0migration/112598-21kthreadcore10:38:161
179940,0migration/111437-21kthreadcore07:33:141
179940,0migration/110776-21iostat07:58:151
179940,0migration/110141-21kthreadcore10:03:171
169940,0watchdog/131369-21fschecks_time10:33:141
169940,0watchdog/128126-21cut07:48:131
169940,0watchdog/125019-21kthreadcore10:28:181
169940,0watchdog/124350-21kthreadcore11:03:181
169940,0watchdog/120610-21ssh12:32:181
169940,0watchdog/116052-21ntp_offset09:28:211
169940,0watchdog/116019-21kthreadcore10:58:181
169940,0watchdog/113843-21ssh12:43:541
169940,0watchdog/110536-21ssh12:24:581
169940,0watchdog/10-21swapper/112:33:141
169940,0watchdog/10-21swapper/111:48:181
169940,0watchdog/10-21swapper/109:08:171
169940,0watchdog/10-21swapper/107:38:091
169940,0watchdog/10-21swapper/107:28:171
149940,0migration/08112-21kthreadcore09:43:160
149940,0migration/05127-21kthreadcore10:53:190
149940,0migration/029901-21kthreadcore10:13:180
149940,0migration/027223-21fschecks_time12:18:150
149940,0migration/018198-21irqcore08:48:160
149940,0migration/01666-21kthreadcore07:28:170
149940,0migration/012778-21taskset07:37:180
8305030,0irq/26-0000:00:0-21swapper/309:23:013
8305030,0irq/26-0000:00:0-21swapper/307:58:093
307429933,0cyclictest3571-21lldpd11:23:341
307429933,0cyclictest3571-21lldpd08:44:021
307429933,0cyclictest0-21swapper/108:58:331
307429932,0cyclictest28578-21grep08:33:121
307419933,0cyclictest17730-21kworker/0:009:23:160
307419932,0cyclictest8880-21tune2fs12:08:130
307419932,0cyclictest7194-21awk09:03:120
307419932,0cyclictest7123-21awk11:13:160
307419932,0cyclictest451-21kthreadcore09:18:180
307419932,0cyclictest30211-21awk11:08:150
307419932,0cyclictest20653-21ssh10:26:580
307419932,0cyclictest20653-21ssh10:26:580
29805030,0irq/28-eth0-rx-0-21swapper/309:13:123
29805030,0irq/28-eth0-rx-0-21swapper/308:33:123
29805030,0irq/28-eth0-rx-0-21swapper/308:23:103
29805030,0irq/28-eth0-rx-0-21swapper/307:43:093
179930,0migration/18984-21runrttasks07:53:491
169930,0watchdog/10-21swapper/111:43:221
169930,0watchdog/10-21swapper/111:33:181
169930,0watchdog/10-21swapper/108:48:171
169930,0watchdog/10-21swapper/108:12:331
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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