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2026-01-07 - 17:39
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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 792 highest latencies:
System rack1slot2.osadl.org (updated Wed Jan 07, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1614025243,0sleep10-21swapper/107:11:271
1617523928,0sleep30-21swapper/307:11:543
1585823526,0sleep20-21swapper/207:08:122
1582223524,0sleep00-21swapper/007:07:460
8305070,0irq/26-0000:00:14698-21entropy10:52:232
8305060,0irq/26-0000:00:30697-21crond07:22:082
339960,0migration/39396-21sh10:47:293
339960,0migration/35274-21sh10:07:493
339960,0migration/34615-21aten_r1power_po12:17:213
339960,0migration/332488-21sh11:55:213
339960,0migration/324366-21munin-node08:02:223
339960,0migration/320721-21taskset10:00:093
339960,0migration/317884-21sh12:05:023
339960,0migration/312511-21sh09:56:553
29815060,0irq/29-eth0-tx-22322-21munin-node12:27:262
29815060,0irq/29-eth0-tx-0-21swapper/211:27:292
29805060,0irq/28-eth0-rx-0-21swapper/310:04:593
162669966,0cyclictest27756-21diskmemload10:39:431
169960,0watchdog/117763-21wc07:57:241
149960,0migration/030053-21taskset10:57:530
149960,0migration/030053-21taskset10:57:530
149960,0migration/023383-21kthreadcore09:07:270
149960,0migration/023217-21fschecks_time12:27:230
149960,0migration/010725-21munin-node09:17:310
8305050,0irq/26-0000:00:32306-21munin-node09:32:232
8305050,0irq/26-0000:00:21564-21munin-run10:02:092
8305050,0irq/26-0000:00:15174-21memory09:37:282
339950,0migration/38499-21fschecks_time12:37:243
339950,0migration/35669-21taskset08:52:423
339950,0migration/33315-21fschecks_time08:32:223
339950,0migration/332204-21kthreadcore12:12:273
339950,0migration/331121-21latency_hist08:07:093
339950,0migration/330910-21latency_hist07:22:083
339950,0migration/329164-21kthreadcore07:17:283
339950,0migration/324601-21kthreadcore12:07:283
339950,0migration/32126-21df_abs10:27:233
339950,0migration/320849-21munin-node08:22:223
339950,0migration/320057-21munin-node09:22:293
339950,0migration/319777-21runrttasks09:02:343
339950,0migration/318241-21kthreadcore11:47:273
339950,0migration/317963-21kthreadcore08:17:293
339950,0migration/311251-21kthreadcore07:27:273
329950,0watchdog/37133-21fschecks_count11:42:203
329950,0watchdog/35820-21kthreadcore11:57:283
329950,0watchdog/33524-21snmpd09:42:083
329950,0watchdog/3310942sleep308:51:163
329950,0watchdog/328287-21memory12:27:293
329950,0watchdog/325369-21kthreadcore10:37:283
329950,0watchdog/321302-21cut08:42:283
329950,0watchdog/320391-21sh12:23:093
329950,0watchdog/319381-21kthreadcore07:12:273
329950,0watchdog/317765-21hwlatdetect07:57:243
329950,0watchdog/30-21swapper/310:17:243
29815050,0irq/29-eth0-tx-8537-21fschecks_time12:37:242
29815050,0irq/29-eth0-tx-7916-21grep09:52:262
29815050,0irq/29-eth0-tx-7523-21rt-features11:57:322
29815050,0irq/29-eth0-tx-4819-21cat09:17:232
29815050,0irq/29-eth0-tx-31255-21df_inode10:07:242
29815050,0irq/29-eth0-tx-27996-21ssh09:12:150
29815050,0irq/29-eth0-tx-25274-21munin-node10:22:262
29815050,0irq/29-eth0-tx-2460-21munin-node10:42:302
29815050,0irq/29-eth0-tx-23070-21munin-node09:27:352
29815050,0irq/29-eth0-tx-21148-21munin-node11:32:312
29815050,0irq/29-eth0-tx-17361-21ssh10:17:232
29815050,0irq/29-eth0-tx-10148-21munin-node12:02:292
29815050,0irq/29-eth0-tx-0-21swapper/212:17:332
29815050,0irq/29-eth0-tx-0-21swapper/212:12:342
29815050,0irq/29-eth0-tx-0-21swapper/212:11:522
29815050,0irq/29-eth0-tx-0-21swapper/211:22:292
29815050,0irq/29-eth0-tx-0-21swapper/211:13:082
29815050,0irq/29-eth0-tx-0-21swapper/210:49:552
29815050,0irq/29-eth0-tx-0-21swapper/209:25:342
29815050,0irq/29-eth0-tx-0-21swapper/009:02:280
29815050,0irq/29-eth0-tx-0-21swapper/008:39:480
29815050,0irq/29-eth0-tx-0-21swapper/007:43:470
29805050,0irq/28-eth0-rx-7212-21ssh11:04:033
29805050,0irq/28-eth0-rx-5263-21cut11:22:283
29805050,0irq/28-eth0-rx-19597-21iostat09:42:263
29805050,0irq/28-eth0-rx-14867-21kthreadcore11:27:283
29805050,0irq/28-eth0-rx-13511-21kthreadcore11:07:283
29805050,0irq/28-eth0-rx-11359-21ssh09:17:383
29805050,0irq/28-eth0-rx-10069-21kthreadcore08:57:283
29805050,0irq/28-eth0-rx-0-21swapper/311:38:193
29805050,0irq/28-eth0-rx-0-21swapper/311:35:383
29805050,0irq/28-eth0-rx-0-21swapper/311:12:283
29805050,0irq/28-eth0-rx-0-21swapper/310:57:453
29805050,0irq/28-eth0-rx-0-21swapper/310:57:453
29805050,0irq/28-eth0-rx-0-21swapper/310:42:343
29805050,0irq/28-eth0-rx-0-21swapper/310:36:293
29805050,0irq/28-eth0-rx-0-21swapper/310:13:443
29805050,0irq/28-eth0-rx-0-21swapper/309:47:263
29805050,0irq/28-eth0-rx-0-21swapper/309:32:403
29805050,0irq/28-eth0-rx-0-21swapper/309:27:163
29805050,0irq/28-eth0-rx-0-21swapper/309:12:243
259950,0migration/29785-21gltestperf11:07:242
259950,0migration/29542-21kthreadcore08:57:272
259950,0migration/2723-21sh11:57:012
259950,0migration/231693-21fschecks_count12:32:222
259950,0migration/231059-21hddtemp_smartct11:37:222
259950,0migration/229767-21sh10:05:242
259950,0migration/219494-21needreboot12:22:292
259950,0migration/210953-21aten2.4-expect10:32:222
249950,0watchdog/221433-21kthreadcore11:47:282
179950,0migration/19035-21taskset07:48:191
179950,0migration/18621-21kthreadcore07:27:261
179950,0migration/129060-21taskset11:35:251
179950,0migration/128995-21kthreadcore09:47:251
179950,0migration/127733-21taskset09:12:011
179950,0migration/127320-21fschecks_time11:17:221
179950,0migration/113938-21kthreadcore07:52:271
179950,0migration/113173-21hddtemp_smartct11:27:241
179950,0migration/110193-21sh10:31:281
162679955,0cyclictest0-21swapper/210:57:422
162679955,0cyclictest0-21swapper/210:57:422
162679950,0cyclictest0-21swapper/209:07:302
162669955,0cyclictest27756-21diskmemload10:03:371
162669955,0cyclictest0-21swapper/112:40:201
162669955,0cyclictest0-21swapper/110:49:481
162669950,0cyclictest0-21swapper/111:51:461
162669950,0cyclictest0-21swapper/110:00:371
162669950,0cyclictest0-21swapper/109:29:051
149950,0migration/09965-21kthreadcore11:42:250
149950,0migration/0874-21kthreadcore08:27:270
149950,0migration/07443-21kthreadcore11:22:280
149950,0migration/07211-21taskset12:36:280
149950,0migration/06752-21sh10:11:190
149950,0migration/06491-21timerandwakeup09:32:340
149950,0migration/031351-21irqcore11:37:240
149950,0migration/03039-21fschecks_time07:47:200
149950,0migration/02986-21kthreadcore07:22:260
149950,0migration/027342-21kthreadcore10:22:280
149950,0migration/026568-21kthreadcore11:52:270
149950,0migration/025779-21kthreadcore08:22:280
149950,0migration/025634-21kthreadcore07:37:280
149950,0migration/024655-21kthreadcore10:02:260
149950,0migration/020264-21kthreadcore09:42:280
149950,0migration/019102-21aten_r1power_en12:07:210
149950,0migration/018020-21kthreadcore10:17:260
149950,0migration/017776-21aten_r1power_fr11:12:220
149950,0migration/017450-21unixbench_multi10:32:360
149950,0migration/016999-21kthreadcore08:17:280
149950,0migration/016398-21kthreadcore10:52:270
149950,0migration/01428-21kthreadcore08:07:250
149950,0migration/013656-21fschecks_count07:32:230
149950,0migration/012518-21taskset09:56:570
149950,0migration/011461-21kthreadcore11:07:270
149950,0migration/010710-21munin-node12:17:300
149950,0migration/010670-21kthreadcore08:12:270
8305040,0irq/26-0000:00:14616-21ps08:17:272
8305040,0irq/26-0000:00:0-21swapper/211:17:102
8305040,0irq/26-0000:00:0-21swapper/208:02:082
339940,0migration/330384-21kthreadcore08:27:273
339940,0migration/314318-21kthreadcore07:52:273
339940,0migration/311000-21kthreadcore08:12:273
329940,0watchdog/320224-21taskset10:52:283
329940,0watchdog/30-21swapper/310:22:283
329940,0watchdog/30-21swapper/308:37:203
329940,0watchdog/30-21swapper/307:32:283
29815040,0irq/29-eth0-tx-32088-21ssh11:02:122
29815040,0irq/29-eth0-tx-0-21swapper/211:42:122
29815040,0irq/29-eth0-tx-0-21swapper/210:37:502
29815040,0irq/29-eth0-tx-0-21swapper/209:42:262
29815040,0irq/29-eth0-tx-0-21swapper/209:12:432
29805040,0irq/28-eth0-rx-0-21swapper/312:35:043
29805040,0irq/28-eth0-rx-0-21swapper/311:17:103
259940,0migration/27787-21kthreadcore07:47:252
259940,0migration/26853-21kthreadcore08:32:262
259940,0migration/24525-21kthreadcore10:27:282
259940,0migration/230197-21kthreadcore07:42:272
259940,0migration/227594-21kthreadcore08:47:262
259940,0migration/22541-21kthreadcore07:22:262
259940,0migration/221731-21irqcore08:22:262
249940,0watchdog/217764-21hwlatdetect07:57:242
249940,0watchdog/214188-21yum10:12:362
249940,0watchdog/211859-21grep08:12:282
249940,0watchdog/20-21swapper/208:42:282
179940,0migration/18969-21aten_r1power_vo11:07:221
179940,0migration/15878-21taskset10:09:151
179940,0migration/14866-21kthreadcore09:32:271
179940,0migration/13654-21taskset12:15:501
179940,0migration/13394-21kthreadcore11:02:271
179940,0migration/132652-21irqrtprio08:07:241
179940,0migration/129989-21irqcore10:42:261
179940,0migration/126947-21kthreadcore07:17:271
179940,0migration/126805-21irqrtprio10:22:271
179940,0migration/121243-21kthreadcore12:07:271
179940,0migration/120105-21kthreadcore07:12:281
179940,0migration/111756-21kernelversion12:02:271
162679943,0cyclictest3524-21snmpd08:53:532
162679943,0cyclictest3524-21snmpd07:30:522
162679943,0cyclictest28504-21awk09:47:232
162679943,0cyclictest22527-21ntpq07:12:302
162679943,0cyclictest21367-21awk07:37:262
162679943,0cyclictest10847-21awk08:37:242
162669944,0cyclictest0-21swapper/111:40:251
162669943,0cyclictest3524-21snmpd08:55:081
162669943,0cyclictest3524-21snmpd08:38:531
162669943,0cyclictest3524-21snmpd07:38:071
162669943,0cyclictest25711-21awk11:52:251
162669943,0cyclictest25024-21awk08:02:251
162669943,0cyclictest19529-21awk09:42:251
162669943,0cyclictest18861-21awk11:12:261
162669943,0cyclictest14614-21awk09:02:241
162669943,0cyclictest11970-21awk10:32:261
162669940,0cyclictest0-21swapper/108:16:341
162659944,0cyclictest0-21swapper/012:12:370
162659944,0cyclictest0-21swapper/009:58:170
162659943,0cyclictest932-21awk11:02:250
162659943,0cyclictest4189-21kworker/0:112:05:030
162659943,0cyclictest4189-21kworker/0:111:48:170
162659943,0cyclictest3571-21lldpd09:01:000
162659943,0cyclictest3571-21lldpd08:54:300
162659943,0cyclictest28413-21awk09:47:230
162659943,0cyclictest18169-21awk08:42:260
162659943,0cyclictest14999-21awk09:22:240
162659943,0cyclictest14550-21awk12:22:250
162659943,0cyclictest10735-21kworker/0:109:27:240
162659942,0cyclictest18274-21kworker/0:211:17:550
162659940,0cyclictest0-21swapper/012:42:060
169940,0watchdog/19397-21ssh12:01:041
169940,0watchdog/113870-21perl07:32:241
169940,0watchdog/10-21swapper/112:23:091
169940,0watchdog/10-21swapper/111:22:281
169940,0watchdog/10-21swapper/110:53:281
169940,0watchdog/10-21swapper/109:12:281
149940,0migration/017055-21cpuspeed_turbos07:57:210
149940,0migration/01645-21latency_hist10:27:090
149940,0migration/014657-21kthreadcore09:37:280
149940,0migration/013705-21kthreadcore07:52:270
149940,0migration/012185-21sh11:27:200
149940,0migration/010511-21kthreadcore10:47:290
329930,0watchdog/30-21swapper/309:07:323
329930,0watchdog/30-21swapper/307:42:283
29805030,0irq/28-eth0-rx-0-21swapper/307:37:213
249930,0watchdog/20-21swapper/207:32:242
162679933,0cyclictest10734-21awk07:52:252
162679932,0cyclictest28796-21awk08:27:252
162679932,0cyclictest14638-21awk09:02:242
162679930,0cyclictest0-21swapper/208:07:302
162669932,0cyclictest8548-21awk10:12:251
162669932,0cyclictest6356-21sh08:57:211
162669932,0cyclictest5564-21awk12:17:251
162669932,0cyclictest4874-21gltestperf09:52:221
162669932,0cyclictest3524-21snmpd07:22:221
162669932,0cyclictest32301-21if_err_eth1.312:32:251
162669932,0cyclictest28664-21sensors12:27:321
162669932,0cyclictest28654-21awk08:27:241
162669932,0cyclictest28591-21awk07:42:261
162669932,0cyclictest25279-21awk08:47:241
162669932,0cyclictest20420-21munin-node08:22:251
162669932,0cyclictest16890-21fschecks_count10:17:221
162659933,0cyclictest4189-21kworker/0:111:57:190
162659933,0cyclictest4189-21kworker/0:111:32:170
162659933,0cyclictest30141-21kworker/0:008:32:200
162659933,0cyclictest26393-21kworker/0:208:02:220
162659933,0cyclictest26393-21kworker/0:207:27:200
162659933,0cyclictest18274-21kworker/0:210:42:120
162659933,0cyclictest18274-21kworker/0:210:37:160
162659933,0cyclictest18274-21kworker/0:210:12:120
162659933,0cyclictest16444-21kworker/0:107:17:200
162659933,0cyclictest16444-21kworker/0:107:12:240
162659933,0cyclictest10735-21kworker/0:108:47:180
169930,0watchdog/113957-21sh09:22:201
169930,0watchdog/10-21swapper/111:42:201
169930,0watchdog/10-21swapper/110:57:201
169930,0watchdog/10-21swapper/110:57:201
169930,0watchdog/10-21swapper/109:38:081
169930,0watchdog/10-21swapper/109:17:281
169930,0watchdog/10-21swapper/108:42:281
169930,0watchdog/10-21swapper/108:17:241
29805020,0irq/28-eth0-rx-0-21swapper/307:47:103
162669920,0cyclictest0-21swapper/108:32:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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