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2026-05-07 - 02:10
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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 Thu May 07, 2026 00:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
658624233,0sleep20-21swapper/219:18:592
682924031,0sleep10-21swapper/119:21:501
3224223626,0sleep30-21swapper/319:17:083
677523319,0sleep00-21swapper/019:21:090
69269999,0cyclictest24403-21sensors23:32:252
69269960,0cyclictest0-21swapper/221:22:592
339960,0migration/38782-21sh22:11:533
339960,0migration/332641-21latency23:37:233
339960,0migration/321448-21sh00:09:453
339960,0migration/319415-21munin-node19:52:193
339960,0migration/318736-21sh22:34:193
339960,0migration/312492-21sh22:49:583
29815060,0irq/29-eth0-tx-0-21swapper/222:35:382
29805060,0irq/28-eth0-rx-7054-21ssh21:52:143
29805060,0irq/28-eth0-rx-7054-21ssh21:52:143
29805060,0irq/28-eth0-rx-5661-21tr22:27:203
29805060,0irq/28-eth0-rx-3883-21perl23:42:173
29805060,0irq/28-eth0-rx-24130-21python22:17:263
29805060,0irq/28-eth0-rx-19737-21sh21:38:083
29805060,0irq/28-eth0-rx-17034-21iostat23:12:203
29805060,0irq/28-eth0-rx-13261-21kthreadcore00:22:213
29805060,0irq/28-eth0-rx-1250-21kthreadcore21:07:203
8305050,0irq/26-0000:00:0-21swapper/223:07:032
69269950,0cyclictest0-21swapper/221:17:192
69269950,0cyclictest0-21swapper/220:52:052
69269950,0cyclictest0-21swapper/220:33:002
69249955,0cyclictest0-21swapper/023:01:090
69249953,0cyclictest8149-21kworker/0:100:37:310
339950,0migration/3976-21sh22:23:163
339950,0migration/39386-21kthreadcore00:02:213
339950,0migration/37540-21taskset23:22:353
339950,0migration/35161-21kthreadcore20:47:213
339950,0migration/34840-21munin-node21:47:283
339950,0migration/33970-21aten_r1power_vo20:27:153
339950,0migration/331560-21taskset00:32:523
339950,0migration/329614-21gltestperf19:37:173
339950,0migration/329194-21kthreadcore21:27:203
339950,0migration/328672-21taskset20:21:423
339950,0migration/328254-21taskset19:34:453
339950,0migration/325930-21fschecks_count20:42:153
339950,0migration/317932-21taskset21:18:373
339950,0migration/312875-21kthreadcore20:32:193
339950,0migration/312841-21munin-node23:47:183
329950,0watchdog/32353-21kthreadcore20:02:173
329950,0watchdog/317335-21ssh22:16:343
329950,0watchdog/313024-21needreboot19:22:213
329950,0watchdog/311087-21cut23:27:223
329950,0watchdog/30-21swapper/321:32:183
329950,0watchdog/30-21swapper/321:12:223
29815050,0irq/29-eth0-tx-7508-21munin-node00:22:152
29815050,0irq/29-eth0-tx-622-21munin-node23:22:212
29815050,0irq/29-eth0-tx-3822-21munin-node20:27:200
29815050,0irq/29-eth0-tx-3703-21cat00:37:202
29815050,0irq/29-eth0-tx-20615-21ssh21:40:172
29815050,0irq/29-eth0-tx-19997-21munin-node22:37:212
29815050,0irq/29-eth0-tx-18501-21munin-node21:22:150
29815050,0irq/29-eth0-tx-15525-21latency_hist23:12:032
29815050,0irq/29-eth0-tx-12630-21perl23:47:172
29815050,0irq/29-eth0-tx-0-21swapper/223:39:072
29815050,0irq/29-eth0-tx-0-21swapper/222:07:212
29815050,0irq/29-eth0-tx-0-21swapper/221:31:162
29815050,0irq/29-eth0-tx-0-21swapper/200:14:372
29805050,0irq/28-eth0-rx-30839-21ssh00:16:533
29805050,0irq/28-eth0-rx-29366-21taskset22:58:463
29805050,0irq/28-eth0-rx-12927-21kthreadcore23:07:223
29805050,0irq/28-eth0-rx-0-21swapper/323:57:203
29805050,0irq/28-eth0-rx-0-21swapper/323:03:523
29805050,0irq/28-eth0-rx-0-21swapper/322:55:313
29805050,0irq/28-eth0-rx-0-21swapper/322:43:243
29805050,0irq/28-eth0-rx-0-21swapper/322:37:213
29805050,0irq/28-eth0-rx-0-21swapper/322:04:493
29805050,0irq/28-eth0-rx-0-21swapper/321:57:283
29805050,0irq/28-eth0-rx-0-21swapper/321:44:103
29805050,0irq/28-eth0-rx-0-21swapper/321:25:373
29805050,0irq/28-eth0-rx-0-21swapper/300:42:213
29805050,0irq/28-eth0-rx-0-21swapper/300:17:203
27150,0ktimersoftd/20-21swapper/222:02:142
259950,0migration/29806-21munin-node20:27:232
259950,0migration/230457-21kthreadcore22:42:202
259950,0migration/230116-21hwlatdetect21:07:172
259950,0migration/227765-21kthreadcore23:17:222
259950,0migration/224468-21kthreadcore21:42:182
259950,0migration/223581-21kthreadcore20:17:202
259950,0migration/217656-21kthreadcore00:07:222
259950,0migration/215505-21sh21:57:092
259950,0migration/212224-21kthreadcore20:07:202
259950,0migration/210977-21runrttasks22:31:502
259950,0migration/210877-21missed_timers22:47:222
259950,0migration/210624-21sh21:32:372
249950,0watchdog/215682-21ps23:27:262
19150,0ktimersoftd/10-21swapper/123:16:041
179950,0migration/19968-21munin-node23:27:171
179950,0migration/17186-21munin-node23:07:151
179950,0migration/132642-21kthreadcore20:22:201
179950,0migration/121733-21taskset20:17:041
179950,0migration/117669-21munin-node23:47:221
179950,0migration/116886-21kthreadcore22:52:201
179950,0migration/114610-21aten_r1power_po20:12:131
179950,0migration/110615-21taskset23:44:401
149950,0migration/09216-21timerwakeupswit22:27:270
149950,0migration/06874-21munin-run23:07:030
149950,0migration/06550-21kthreadcore23:22:190
149950,0migration/05389-21kthreadcore20:47:210
149950,0migration/04808-21taskset00:01:300
149950,0migration/032374-21missed_timers22:22:210
149950,0migration/028923-21cpuspeed_turbos19:37:150
149950,0migration/026402-21kthreadcore00:12:220
149950,0migration/025839-21df_abs20:42:150
149950,0migration/025156-21taskset20:41:440
149950,0migration/023950-21kthreadcore19:32:190
149950,0migration/021640-21kthreadcore22:37:200
149950,0migration/021520-21munin-node19:52:200
149950,0migration/019932-21kthreadcore22:17:190
149950,0migration/019554-21munin-node00:47:190
149950,0migration/019264-21runrttasks23:49:460
149950,0migration/018324-21latency_hist21:22:030
149950,0migration/018148-21munin-node23:32:140
149950,0migration/016815-21kthreadcore00:07:210
149950,0migration/015541-21irqcore19:27:180
149950,0migration/01455-21kthreadcore00:17:200
149950,0migration/01389-21kthreadcore21:47:200
149950,0migration/013719-21taskset19:22:550
149950,0migration/012203-21kthreadcore00:22:210
149950,0migration/011612-21taskset22:47:290
149950,0migration/01047-21idleruntime20:02:150
149950,0migration/010014-21kthreadcore00:02:210
69269943,0cyclictest3571-21lldpd19:34:372
69269943,0cyclictest32356-21awk00:17:182
69269943,0cyclictest29823-21awk19:37:192
69269940,0cyclictest11029-21idleruntime-cro21:17:032
69259943,0cyclictest3571-21lldpd22:45:101
69259943,0cyclictest3571-21lldpd21:52:091
69259943,0cyclictest3571-21lldpd21:52:091
69259943,0cyclictest3571-21lldpd20:32:081
69259943,0cyclictest3524-21snmpd19:56:351
69259943,0cyclictest3524-21snmpd00:27:081
69259943,0cyclictest3524-21snmpd00:17:381
69259943,0cyclictest31931-21awk23:02:181
69259943,0cyclictest30102-21awk23:57:181
69259943,0cyclictest26304-21awk19:57:171
69259943,0cyclictest2143-21awk00:37:191
69259943,0cyclictest18888-21awk22:17:171
69259943,0cyclictest11913-21awk19:47:181
69259942,0cyclictest4888-21awk20:27:181
69249944,0cyclictest0-21swapper/023:29:320
69249944,0cyclictest0-21swapper/022:55:100
69249944,0cyclictest0-21swapper/000:36:510
69249943,0cyclictest3571-21lldpd21:35:080
69249943,0cyclictest3571-21lldpd20:33:080
69249943,0cyclictest3250-21irqbalance22:01:190
69249943,0cyclictest29665-21awk22:42:190
69249943,0cyclictest21573-21awk23:52:190
69249943,0cyclictest15535-21sadc23:12:030
69249943,0cyclictest13941-21awk21:37:180
339940,0migration/3821-21latency_hist00:37:033
339940,0migration/328730-21taskset21:05:093
329940,0watchdog/321237-21ksmtuned20:13:583
329940,0watchdog/30-21swapper/319:57:173
329940,0watchdog/30-21swapper/319:47:213
29815040,0irq/29-eth0-tx-30846-21munin-node23:02:212
29815040,0irq/29-eth0-tx-30608-21aten2.4-expect21:47:142
29815040,0irq/29-eth0-tx-20342-21ssh23:52:092
29815040,0irq/29-eth0-tx-20315-21ssh22:52:432
29815040,0irq/29-eth0-tx-18238-21ssh00:47:042
29815040,0irq/29-eth0-tx-0-21swapper/223:57:052
29815040,0irq/29-eth0-tx-0-21swapper/223:42:052
29815040,0irq/29-eth0-tx-0-21swapper/222:17:482
29815040,0irq/29-eth0-tx-0-21swapper/221:52:052
29815040,0irq/29-eth0-tx-0-21swapper/221:52:052
29815040,0irq/29-eth0-tx-0-21swapper/200:27:172
29815040,0irq/29-eth0-tx-0-21swapper/021:12:280
29815040,0irq/29-eth0-tx-0-21swapper/020:22:170
29805040,0irq/28-eth0-rx-24681-21cpuspeed_turbos23:17:163
29805040,0irq/28-eth0-rx-19275-21if_eth1.223:32:193
29805040,0irq/28-eth0-rx-0-21swapper/323:55:103
29805040,0irq/28-eth0-rx-0-21swapper/320:57:203
29805040,0irq/28-eth0-rx-0-21swapper/319:42:213
29805040,0irq/28-eth0-rx-0-21swapper/300:47:353
29805040,0irq/28-eth0-rx-0-21swapper/300:27:153
259940,0migration/27354-21kthreadcore19:42:212
259940,0migration/228214-21kthreadcore00:32:222
259940,0migration/228096-21kthreadcore22:22:192
259940,0migration/222706-21fschecks_count22:57:162
259940,0migration/221170-21kthreadcore19:52:192
259940,0migration/221125-21kthreadcore20:37:202
259940,0migration/216175-21kthreadcore19:27:182
259940,0migration/211119-21kthreadcore00:02:222
249940,0watchdog/220944-21munin-node20:57:262
249940,0watchdog/216706-21ls19:47:212
249940,0watchdog/215697-21iostat20:12:182
249940,0watchdog/215655-21memory00:42:222
249940,0watchdog/213315-21cut22:12:222
249940,0watchdog/20-21swapper/220:01:572
179940,0migration/19403-21kthreadcore21:12:221
179940,0migration/16981-21kthreadcore00:02:201
179940,0migration/16119-21kthreadcore21:32:201
179940,0migration/130008-21kthreadcore20:42:201
179940,0migration/128968-21kthreadcore22:22:191
179940,0migration/128816-21kthreadcore00:32:221
179940,0migration/126493-21kthreadcore22:57:201
179940,0migration/122364-21kthreadcore00:47:201
179940,0migration/122298-21kthreadcore23:52:201
179940,0migration/119209-21kthreadcore19:27:191
179940,0migration/118280-21sh22:33:021
179940,0migration/114438-21fschecks_count00:07:171
179940,0migration/111852-21fschecks_count21:17:171
179940,0migration/110946-21taskset22:31:431
169940,0watchdog/17038-21processes23:22:221
169940,0watchdog/131568-21if_eth021:47:181
169940,0watchdog/125883-21sh22:37:221
169940,0watchdog/125855-21ssh21:24:261
169940,0watchdog/124442-21python20:37:261
169940,0watchdog/120005-21ssh21:38:501
169940,0watchdog/118055-21ssh23:32:061
169940,0watchdog/117775-21ssh00:46:181
169940,0watchdog/11602-21kthreadcore20:02:171
169940,0watchdog/114771-21aten_r1power_cu20:57:141
169940,0watchdog/114284-21ssh00:22:421
169940,0watchdog/113514-21python20:07:261
169940,0watchdog/113316-21tr22:12:221
169940,0watchdog/10-21swapper/123:37:301
169940,0watchdog/10-21swapper/123:17:221
169940,0watchdog/10-21swapper/119:37:211
149940,0migration/029110-21sh21:44:310
149940,0migration/025108-21kthreadcore20:17:210
149940,0migration/018555-21kthreadcore23:12:210
149940,0migration/016304-21kthreadcore19:47:210
149940,0migration/015646-21kthreadcore22:32:190
149940,0migration/014860-21df_abs20:12:140
69269930,0cyclictest26323-21perl20:42:162
69269930,0cyclictest1012-21perl20:47:172
69259933,0cyclictest3571-21lldpd21:02:081
69259933,0cyclictest1298-21awk20:47:191
69259932,0cyclictest3892-21tr19:42:151
69259932,0cyclictest28398-21awk21:27:191
69259932,0cyclictest22787-21awk21:42:171
69259932,0cyclictest22645-21awk19:32:171
69259932,0cyclictest10674-21cut20:52:191
69259931,0cyclictest7136-21munin-node19:22:231
69259930,0cyclictest0-21swapper/121:57:031
69249933,0cyclictest8149-21kworker/0:123:42:060
69249933,0cyclictest8149-21kworker/0:123:37:140
69249933,0cyclictest8149-21kworker/0:123:17:080
69249933,0cyclictest8149-21kworker/0:100:42:090
69249933,0cyclictest8149-21kworker/0:100:27:050
69249933,0cyclictest22290-21kworker/0:221:52:120
69249933,0cyclictest22290-21kworker/0:221:52:120
69249933,0cyclictest22290-21kworker/0:221:27:040
69249933,0cyclictest22290-21kworker/0:221:07:040
69249933,0cyclictest22290-21kworker/0:221:02:060
69249933,0cyclictest22290-21kworker/0:220:52:060
69249933,0cyclictest22290-21kworker/0:219:57:220
69249933,0cyclictest22290-21kworker/0:219:42:060
69249933,0cyclictest15473-21kworker/0:022:12:120
69249933,0cyclictest15473-21kworker/0:022:07:120
69249933,0cyclictest15473-21kworker/0:022:02:080
339930,0migration/39158-21kthreadcore20:52:183
329930,0watchdog/30-21swapper/320:22:183
329930,0watchdog/30-21swapper/319:28:013
29815030,0irq/29-eth0-tx-0-21swapper/020:57:140
29815030,0irq/29-eth0-tx-0-21swapper/020:07:140
29805030,0irq/28-eth0-rx-0-21swapper/320:37:093
29805030,0irq/28-eth0-rx-0-21swapper/320:07:263
249930,0watchdog/20-21swapper/220:22:182
249930,0watchdog/20-21swapper/220:02:132
249930,0watchdog/20-21swapper/219:22:212
19130,0ktimersoftd/118246-21diskmemload22:02:051
169930,0watchdog/17375-21ssh22:07:541
169930,0watchdog/127814-21kthreadcore00:12:221
169930,0watchdog/10-21swapper/122:47:381
169930,0watchdog/10-21swapper/121:07:061
69269920,0cyclictest0-21swapper/221:02:092
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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