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2026-08-03 - 11:59
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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 Mon Aug 03, 2026 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
951624544,0sleep10-21swapper/119:24:421
1008823728,0sleep30-21swapper/319:27:203
1004323624,0sleep20-21swapper/219:26:512
987023019,0sleep00-21swapper/019:24:490
103169993,0cyclictest29899-21awk00:04:310
103169993,0cyclictest18837-21awk19:34:310
103169983,0cyclictest3524-21snmpd22:39:450
103169983,0cyclictest3524-21snmpd22:06:150
103169983,0cyclictest3524-21snmpd22:01:000
103169983,0cyclictest26340-21awk21:09:300
103169983,0cyclictest20589-21awk22:24:310
103169983,0cyclictest11829-21awk20:14:320
103169980,0cyclictest0-21swapper/000:57:450
103169975,0cyclictest0-21swapper/000:31:350
103169972,0cyclictest3524-21snmpd22:58:160
103169972,0cyclictest3524-21snmpd22:19:150
103169972,0cyclictest3524-21snmpd22:14:020
103169972,0cyclictest28585-21sadc20:49:150
103169972,0cyclictest26249-21awk23:24:310
103169972,0cyclictest17705-21awk23:19:320
103169972,0cyclictest14447-21munin-node20:39:380
103169971,0cyclictest24327-21awk23:04:300
103169970,0cyclictest9896-21ssh22:17:010
103169970,0cyclictest7828-21ssh21:39:310
103169970,0cyclictest32085-21munin-node19:44:280
103169970,0cyclictest31672-21ps21:34:320
103169970,0cyclictest29565-21sh00:21:480
103169970,0cyclictest29187-21sh22:48:060
103169970,0cyclictest24909-21munin-node19:39:370
103169970,0cyclictest22299-21cut19:59:260
103169970,0cyclictest2218-21smartctl23:29:300
103169970,0cyclictest18143-21cpuspeed_turbos20:19:290
103169970,0cyclictest14629-21munin-node21:24:320
103169970,0cyclictest11978-21ssh22:37:420
103169970,0cyclictest10932-21munin-node20:59:270
103169970,0cyclictest0-21swapper/023:47:260
339960,0migration/33722-21munin-node22:49:363
339960,0migration/331470-21sh21:51:153
339960,0migration/314703-21cpuspeed_turbos20:39:263
339960,0migration/313814-21kthreadcore23:34:343
29805060,0irq/28-eth0-rx-9706-21munin-node20:09:373
29805060,0irq/28-eth0-rx-3013-21yum20:49:433
29805060,0irq/28-eth0-rx-18037-21perl00:54:323
29805060,0irq/28-eth0-rx-16372-21gltestperf00:34:313
29805060,0irq/28-eth0-rx-13005-21ntpq00:29:353
27160,0ktimersoftd/20-21swapper/200:57:452
103189966,0cyclictest83050irq/26-0000:00:21:59:202
103169961,0cyclictest29916-21aten_r1power_en22:49:270
103169960,0cyclictest9860-21sh23:34:240
103169960,0cyclictest8670-21perl23:14:310
103169960,0cyclictest7518-21aten_r1power_po21:19:270
103169960,0cyclictest7258-21aten_r1power_cu20:34:250
103169960,0cyclictest7059-21cut19:49:280
103169960,0cyclictest4932-21ssh00:09:170
103169960,0cyclictest4683-21grep20:54:310
103169960,0cyclictest384-21sh21:54:240
103169960,0cyclictest3700-21cpuspeed_turbos20:09:270
103169960,0cyclictest32691-21munin-node21:14:290
103169960,0cyclictest32403-21latency_hist00:44:160
103169960,0cyclictest32373-21munin-node20:29:260
103169960,0cyclictest31710-21sh23:09:200
103169960,0cyclictest30985-21tr00:24:300
103169960,0cyclictest3093-21ssh23:49:190
103169960,0cyclictest29046-21cpuspeed_turbos20:49:280
103169960,0cyclictest28627-21aten_r1power_cu20:04:270
103169960,0cyclictest27986-21sh22:29:170
103169960,0cyclictest25305-21aten_r1power_vo20:24:270
103169960,0cyclictest24490-21cpuspeed_turbos21:49:290
103169960,0cyclictest24266-21tr00:39:270
103169960,0cyclictest219711ssh21:29:270
103169960,0cyclictest20225-21sh23:59:160
103169960,0cyclictest18427-21munin-node23:39:280
103169960,0cyclictest15433-21ssh21:44:200
103169960,0cyclictest15405-21sh00:34:190
103169960,0cyclictest14749-21aten_r1power_fr22:59:260
103169960,0cyclictest14451-21tr19:54:260
103169960,0cyclictest13519-21sh00:14:160
103169960,0cyclictest12277-21grep23:54:280
103169960,0cyclictest10601-21aten_r1power_fr19:29:270
103169960,0cyclictest0-21swapper/021:04:280
103169960,0cyclictest0-21swapper/000:49:250
8305050,0irq/26-0000:00:0-21swapper/320:44:153
35150,0ktimersoftd/30-21swapper/323:50:413
339950,0migration/39229-21aten_r1power_po21:59:263
339950,0migration/38368-21hddtemp_smartct21:19:293
339950,0migration/36249-21munin-node22:54:273
339950,0migration/35844-21kthreadcore00:44:353
339950,0migration/34473-21fschecks_time20:54:293
339950,0migration/34283-21kthreadcore23:29:333
339950,0migration/332137-21irqrtprio00:24:353
339950,0migration/328466-21kthreadcore19:39:323
339950,0migration/328285-21kthreadcore22:09:333
339950,0migration/326200-21kthreadcore00:19:343
339950,0migration/326173-21idleruntime20:24:303
339950,0migration/321949-21ksmtuned23:01:213
339950,0migration/321833-21forks22:44:303
339950,0migration/321276-21taskset21:25:583
339950,0migration/321210-21latency_hist22:44:153
339950,0migration/31743-21munin-node22:29:353
339950,0migration/316625-21needreboot20:14:363
339950,0migration/316498-21sh23:19:253
339950,0migration/310791-21timerwakeupswit22:34:403
329950,0watchdog/38416-21diskstats23:14:303
329950,0watchdog/37861-21fschecks_time19:49:303
329950,0watchdog/3583-21munin-node19:44:303
329950,0watchdog/315299-21kthreadcore19:29:343
329950,0watchdog/30-21swapper/321:04:303
329950,0watchdog/30-21swapper/300:51:033
29815050,0irq/29-eth0-tx-8809-21tr00:29:322
29815050,0irq/29-eth0-tx-4253-21munin-node22:34:352
29815050,0irq/29-eth0-tx-3995-21sshd00:07:102
29815050,0irq/29-eth0-tx-27395-21iostat22:09:312
29815050,0irq/29-eth0-tx-26391-21ssh22:25:142
29815050,0irq/29-eth0-tx-2324-21munin-node22:14:362
29815050,0irq/29-eth0-tx-21569-21diskmemload00:36:442
29815050,0irq/29-eth0-tx-0-21swapper/223:29:332
29815050,0irq/29-eth0-tx-0-21swapper/221:54:172
29815050,0irq/29-eth0-tx-0-21swapper/200:51:282
29815050,0irq/29-eth0-tx-0-21swapper/200:24:442
29805050,0irq/28-eth0-rx-8298-21kthreadcore21:39:323
29805050,0irq/28-eth0-rx-5376-21munin-node23:09:343
29805050,0irq/28-eth0-rx-3947-21ssh00:07:013
29805050,0irq/28-eth0-rx-31503-21tr23:44:343
29805050,0irq/28-eth0-rx-27534-21kthreadcore00:39:343
29805050,0irq/28-eth0-rx-24362-21if_eth1.223:04:313
29805050,0irq/28-eth0-rx-21795-21grep23:39:333
29805050,0irq/28-eth0-rx-20638-21kthreadcore22:04:333
29805050,0irq/28-eth0-rx-17085-21kthreadcore21:44:363
29805050,0irq/28-eth0-rx-1685-21irqcore21:54:333
29805050,0irq/28-eth0-rx-15591-21grep20:59:333
29805050,0irq/28-eth0-rx-14770-21if_eth1.300:14:323
29805050,0irq/28-eth0-rx-14492-21df19:54:263
29805050,0irq/28-eth0-rx-12283-21irqcore22:19:323
29805050,0irq/28-eth0-rx-0-21swapper/322:14:343
29805050,0irq/28-eth0-rx-0-21swapper/321:34:333
29805050,0irq/28-eth0-rx-0-21swapper/320:04:273
29805050,0irq/28-eth0-rx-0-21swapper/300:12:593
259950,0migration/229116-21sh00:20:282
259950,0migration/216490-21kthreadcore19:54:312
259950,0migration/212711-21unixbench-2d22:54:412
259950,0migration/212443-21kthreadcore20:14:342
249950,0watchdog/23707-21kthreadcore19:44:342
249950,0watchdog/225013-21ssh22:06:382
249950,0watchdog/20-21swapper/219:34:342
19150,0ktimersoftd/10-21swapper/100:57:451
179950,0migration/131393-21sendmail_mailqu23:24:371
179950,0migration/12992-21taskset20:07:101
179950,0migration/128073-21munin-node21:29:361
179950,0migration/122474-21sh23:02:551
179950,0migration/12013-21taskset22:14:141
179950,0migration/11936-21kthreadcore19:44:331
179950,0migration/116924-21ntp_offset20:59:361
179950,0migration/116396-21kthreadcore20:39:311
179950,0migration/115252-21sh23:16:241
179950,0migration/112378-21sh00:11:341
103189955,0cyclictest83050irq/26-0000:00:23:14:212
103179950,0cyclictest0-21swapper/119:34:301
339940,0migration/327174-21sh00:00:183
339940,0migration/324237-21kthreadcore21:29:323
329940,0watchdog/322980-21kthreadcore19:34:343
329940,0watchdog/30-21swapper/322:24:343
329940,0watchdog/30-21swapper/319:59:503
29815040,0irq/29-eth0-tx-23954-21ssh00:39:212
29815040,0irq/29-eth0-tx-14669-21munin-node22:59:312
29815040,0irq/29-eth0-tx-11690-21ssh23:54:192
29815040,0irq/29-eth0-tx-0-21swapper/223:49:432
29815040,0irq/29-eth0-tx-0-21swapper/223:39:222
29815040,0irq/29-eth0-tx-0-21swapper/223:24:272
29815040,0irq/29-eth0-tx-0-21swapper/223:09:212
29815040,0irq/29-eth0-tx-0-21swapper/222:50:082
29815040,0irq/29-eth0-tx-0-21swapper/222:44:182
29815040,0irq/29-eth0-tx-0-21swapper/222:19:192
29815040,0irq/29-eth0-tx-0-21swapper/221:49:182
29815040,0irq/29-eth0-tx-0-21swapper/221:44:242
29815040,0irq/29-eth0-tx-0-21swapper/221:34:192
29815040,0irq/29-eth0-tx-0-21swapper/200:09:292
29805040,0irq/28-eth0-rx-0-21swapper/323:54:583
29805040,0irq/28-eth0-rx-0-21swapper/323:26:513
29805040,0irq/28-eth0-rx-0-21swapper/321:14:283
29805040,0irq/28-eth0-rx-0-21swapper/320:35:533
29805040,0irq/28-eth0-rx-0-21swapper/320:19:303
259940,0migration/28750-21kthreadcore21:39:322
259940,0migration/26933-21taskset20:33:332
259940,0migration/24493-21fschecks_time20:54:292
259940,0migration/229925-21irqcore20:04:322
259940,0migration/227200-21cpuspeed_turbos23:44:282
259940,0migration/226195-21fschecks_time21:09:292
259940,0migration/226125-21munin-node20:24:292
259940,0migration/225942-21kthreadcore21:29:332
259940,0migration/223975-21kthreadcore20:44:332
259940,0migration/221604-21cpuspeed_turbos19:59:252
259940,0migration/220093-21kthreadcore20:39:322
259940,0migration/219574-21irqrtprio21:04:332
259940,0migration/218123-21kthreadcore21:24:342
259940,0migration/21548-21latency22:29:342
259940,0migration/212729-21kthreadcore19:49:342
259940,0migration/211214-21fschecks_time19:29:292
259940,0migration/210983-21kthreadcore20:34:322
259940,0migration/21090-21hddtemp_smartct00:44:302
249940,0watchdog/224304-21if_eth023:04:302
249940,0watchdog/220686-21kthreadcore23:19:342
249940,0watchdog/218733-21latency22:39:342
249940,0watchdog/213603-21aten_r1power_cu00:14:262
249940,0watchdog/20-21swapper/221:14:302
179940,0migration/18842-21switchtime22:14:421
179940,0migration/18077-21fschecks_time20:34:281
179940,0migration/13124-21kthreadcore00:44:341
179940,0migration/130725-21aten_r1power_cu00:24:291
179940,0migration/130176-21kthreadcore21:09:331
179940,0migration/127128-21kthreadcore20:24:331
179940,0migration/125744-21kthreadcore23:59:331
179940,0migration/12459-21munin-node00:04:361
179940,0migration/123488-21kthreadcore23:39:341
179940,0migration/119811-21kthreadcore20:19:341
179940,0migration/11871-21kthreadcore21:14:341
179940,0migration/11726-21fschecks_count23:29:291
179940,0migration/116855-21timerandwakeup19:29:401
179940,0migration/115858-21runrttasks21:59:451
179940,0migration/115193-21fschecks_count21:24:291
179940,0migration/114287-21irqrtprio22:39:321
179940,0migration/111985-21kthreadcore00:49:341
179940,0migration/111884-21kthreadcore21:19:331
179940,0migration/110829-21gltestperf23:34:301
169940,0watchdog/16147-21ssh21:38:381
169940,0watchdog/16113-21ssh22:54:221
169940,0watchdog/14467-21tr21:54:341
169940,0watchdog/130395-21ssh00:24:151
169940,0watchdog/125847-21kthreadcore21:49:341
169940,0watchdog/123979-21kthreadcore22:24:341
169940,0watchdog/123678-21cat22:44:341
169940,0watchdog/119241-21ssh23:57:021
169940,0watchdog/116366-21kthreadcore22:19:341
169940,0watchdog/111478-21ssh22:36:141
169940,0watchdog/10-21swapper/121:04:301
169940,0watchdog/10-21swapper/120:14:421
103189943,0cyclictest4618-21awk20:09:312
103189943,0cyclictest3524-21snmpd23:34:162
103189943,0cyclictest3524-21snmpd00:01:312
103179943,0cyclictest8013-21awk00:29:311
103179943,0cyclictest7657-21grep21:39:291
103179943,0cyclictest4309-21awk23:49:311
103179943,0cyclictest387-21awk23:09:311
103179943,0cyclictest3524-21snmpd23:45:011
103179943,0cyclictest3524-21snmpd21:46:151
103179943,0cyclictest3524-21snmpd19:50:291
103179943,0cyclictest3524-21snmpd19:39:591
103179943,0cyclictest31068-21awk22:49:311
103179943,0cyclictest29875-21awk20:49:311
103179943,0cyclictest29189-21awk22:29:301
103179943,0cyclictest24256-21awk23:04:301
103179943,0cyclictest18740-21awk22:04:311
103179943,0cyclictest16565-21awk00:34:331
8305030,0irq/26-0000:00:0-21swapper/320:29:373
329930,0watchdog/30-21swapper/321:09:343
249930,0watchdog/20-21swapper/220:49:342
169930,0watchdog/10-21swapper/123:19:341
169930,0watchdog/10-21swapper/119:59:501
169930,0watchdog/10-21swapper/100:14:261
103189932,0cyclictest8442-21awk21:19:302
103189932,0cyclictest3524-21snmpd20:21:142
103189932,0cyclictest12011-21awk20:59:312
103179932,0cyclictest6887-21grep20:09:331
103179932,0cyclictest3759-21aten_r1power_fr20:54:271
103179932,0cyclictest3524-21snmpd20:31:291
103179932,0cyclictest23905-21date00:39:161
103179931,0cyclictest17032-21kthreadcore19:54:311
103179930,0cyclictest22440-21perl20:44:291
27120,0ktimersoftd/224859-21latency_hist19:39:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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