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2026-07-23 - 01:21
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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 Wed Jul 22, 2026 12:43:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1694327574,0sleep00-21swapper/007:26:290
1684726867,0sleep20-21swapper/207:25:232
1688123828,0sleep30-21swapper/307:25:483
1678223525,0sleep10-21swapper/107:24:381
29805070,0irq/28-eth0-rx-17359-21iostat_ios11:33:353
339960,0migration/33568-21sh12:21:483
339960,0migration/318504-21munin-node10:53:373
339960,0migration/31725-21smart_nvme0n110:43:423
339960,0migration/31075-21sh11:59:583
29805060,0irq/28-eth0-rx-7371-21grep11:43:453
29805060,0irq/28-eth0-rx-20866-21port_sshpriv12:48:403
29805060,0irq/28-eth0-rx-0-21swapper/312:38:353
149960,0migration/07985-21munin-node08:28:340
149960,0migration/05204-21sh11:07:330
149960,0migration/022937-21kthreadcore10:58:370
149960,0migration/014687-21sh11:29:550
8305050,0irq/26-0000:00:24568-21crond08:23:132
339950,0migration/33199-21kthreadcore08:23:373
339950,0migration/329460-21latency_hist11:03:183
339950,0migration/328113-21taskset08:40:463
339950,0migration/328042-21kthreadcore11:38:363
339950,0migration/325597-21fschecks_time08:18:333
339950,0migration/324609-21kthreadcore09:23:373
339950,0migration/324596-21aten_r1power_en07:33:303
339950,0migration/324316-21taskset07:33:173
339950,0migration/324154-21gltestperf12:53:323
339950,0migration/321332-21latency_hist12:33:193
339950,0migration/319259-21kthreadcore09:58:353
339950,0migration/318854-21munin-node08:58:323
339950,0migration/318427-21gltestperf10:18:333
339950,0migration/317073-21kthreadcore12:28:373
339950,0migration/311379-21kthreadcore11:28:373
329950,0watchdog/36851-21cut08:48:373
329950,0watchdog/35777-21fschecks_time09:33:333
329950,0watchdog/330102-21kthreadcore09:03:373
329950,0watchdog/311428-21ssh12:24:423
329950,0watchdog/30-21swapper/308:33:373
329950,0watchdog/30-21swapper/307:58:373
29815050,0irq/29-eth0-tx-31824-21diskstats11:23:322
29815050,0irq/29-eth0-tx-30960-21munin-node09:48:402
29815050,0irq/29-eth0-tx-26047-21munin-node10:23:342
29815050,0irq/29-eth0-tx-24556-21munin-node07:33:330
29815050,0irq/29-eth0-tx-24402-21awk12:53:352
29815050,0irq/29-eth0-tx-17381-21munin-node07:28:320
29815050,0irq/29-eth0-tx-1586-21proc_pri10:43:402
29815050,0irq/29-eth0-tx-15026-21cut09:38:372
29815050,0irq/29-eth0-tx-14172-21munin-node08:33:340
29815050,0irq/29-eth0-tx-13364-21df_inode12:28:312
29815050,0irq/29-eth0-tx-12539-21munin-node10:53:342
29815050,0irq/29-eth0-tx-0-21swapper/211:58:362
29815050,0irq/29-eth0-tx-0-21swapper/210:28:372
29815050,0irq/29-eth0-tx-0-21swapper/009:28:300
29815050,0irq/29-eth0-tx-0-21swapper/008:50:030
29815050,0irq/29-eth0-tx-0-21swapper/008:13:460
29815050,0irq/29-eth0-tx-0-21swapper/008:03:140
29805050,0irq/28-eth0-rx-9038-40yum-updatesd-he10:28:593
29805050,0irq/28-eth0-rx-7958-21fschecks_time09:53:333
29805050,0irq/28-eth0-rx-3982-21sh09:31:323
29805050,0irq/28-eth0-rx-3408-21kthreadcore09:08:343
29805050,0irq/28-eth0-rx-32558-21kthreadcore09:48:363
29805050,0irq/28-eth0-rx-3129-21munin-node08:03:353
29805050,0irq/28-eth0-rx-30097-21cut10:03:373
29805050,0irq/28-eth0-rx-24253-21cut11:18:373
29805050,0irq/28-eth0-rx-23570-21iostat_ios09:43:383
29805050,0irq/28-eth0-rx-20651-21python11:13:423
29805050,0irq/28-eth0-rx-19696-21munin-node12:13:373
29805050,0irq/28-eth0-rx-16642-21kthreadcore12:08:393
29805050,0irq/28-eth0-rx-13662-21munin-node09:38:463
29805050,0irq/28-eth0-rx-0-21swapper/312:46:433
29805050,0irq/28-eth0-rx-0-21swapper/312:05:253
29805050,0irq/28-eth0-rx-0-21swapper/311:53:353
29805050,0irq/28-eth0-rx-0-21swapper/311:49:553
29805050,0irq/28-eth0-rx-0-21swapper/311:25:413
29805050,0irq/28-eth0-rx-0-21swapper/310:58:373
29805050,0irq/28-eth0-rx-0-21swapper/310:51:303
29805050,0irq/28-eth0-rx-0-21swapper/310:26:153
29805050,0irq/28-eth0-rx-0-21swapper/310:14:473
29805050,0irq/28-eth0-rx-0-21swapper/310:08:293
29805050,0irq/28-eth0-rx-0-21swapper/310:08:293
259950,0migration/29390-21kthreadcore12:43:362
259950,0migration/27993-21kthreadcore09:33:372
259950,0migration/27832-21kthreadcore12:03:372
259950,0migration/27072-21rt-features11:43:412
259950,0migration/230912-21hddtemp_smartct12:38:322
259950,0migration/230434-21kthreadcore08:43:362
259950,0migration/215503-21fschecks_time12:48:332
259950,0migration/215295-21hddtemp_smartct11:13:342
259950,0migration/215168-21kthreadcore08:53:372
249950,0watchdog/29500-21fschecks_count10:13:332
249950,0watchdog/26852-21tr08:48:372
249950,0watchdog/20-21swapper/209:18:372
171709955,0cyclictest0-21swapper/207:28:362
171699950,0cyclictest0-21swapper/112:52:551
171699950,0cyclictest0-21swapper/112:33:321
171689955,0cyclictest10-21rcuc/012:43:360
171689955,0cyclictest0-21swapper/012:57:470
171689955,0cyclictest0-21swapper/010:43:280
171689955,0cyclictest0-21swapper/009:55:510
171689955,0cyclictest0-21swapper/009:39:180
171689950,0cyclictest0-21swapper/012:01:020
171689950,0cyclictest0-21swapper/010:28:290
179950,0migration/16218-21kthreadcore11:43:381
179950,0migration/127969-21taskset08:39:081
179950,0migration/124199-21timerandwakeup08:58:421
179950,0migration/123942-21ntp_offset11:53:371
179950,0migration/118292-21kthreadcore09:58:351
169950,0watchdog/12110-21kthreadcore09:48:371
169950,0watchdog/118737-21if_eth108:13:371
169950,0watchdog/111856-21grep09:53:371
149950,0migration/09980-21kthreadcore11:08:370
149950,0migration/08736-21taskset11:47:260
149950,0migration/031945-21latency10:23:370
149950,0migration/03154-21kthreadcore09:08:340
149950,0migration/031383-21timerandwakeup09:03:440
149950,0migration/030486-21kthreadcore08:43:360
149950,0migration/027429-21kthreadcore11:18:380
149950,0migration/026312-21kthreadcore12:33:380
149950,0migration/026142-21irqcore08:18:360
149950,0migration/025752-21timerandwakeup10:38:420
149950,0migration/025144-21kthreadcore09:23:370
149950,0migration/024924-21cpuspeed_turbos11:38:300
149950,0migration/020726-21sh12:31:580
149950,0migration/020539-21taskset07:50:070
149950,0migration/015014-21kthreadcore10:33:370
149950,0migration/014936-21kthreadcore10:53:360
149950,0migration/013147-21munin-node09:13:400
149950,0migration/011081-21taskset12:08:210
8305040,0irq/26-0000:00:0-21swapper/212:23:192
339940,0migration/34747-21kthreadcore07:38:353
339940,0migration/322813-21kthreadcore10:38:353
339940,0migration/321407-21idleruntime-cro09:23:183
339940,0migration/313666-21ksmtuned08:30:133
339940,0migration/313016-21mdstat09:13:393
329940,0watchdog/311776-21sed10:33:333
329940,0watchdog/30-21swapper/308:13:373
329940,0watchdog/30-21swapper/307:43:373
29815040,0irq/29-eth0-tx-19060-21ssh10:18:372
29815040,0irq/29-eth0-tx-0-21swapper/212:13:462
29815040,0irq/29-eth0-tx-0-21swapper/211:39:222
29815040,0irq/29-eth0-tx-0-21swapper/211:08:412
29815040,0irq/29-eth0-tx-0-21swapper/210:59:082
29815040,0irq/29-eth0-tx-0-21swapper/210:48:272
29815040,0irq/29-eth0-tx-0-21swapper/210:03:582
29805040,0irq/28-eth0-rx-0-21swapper/311:08:333
29805040,0irq/28-eth0-rx-0-21swapper/308:43:363
27140,0ktimersoftd/232051-21perf09:08:182
259940,0migration/26566-21runrttasks08:26:522
259940,0migration/232138-21kthreadcore09:28:342
259940,0migration/230984-21kthreadcore12:18:382
259940,0migration/226461-21runrttasks10:40:092
259940,0migration/222571-21munin-node09:43:342
259940,0migration/222417-21fschecks_time09:23:332
259940,0migration/218210-21df_abs11:53:302
259940,0migration/211232-21kthreadcore07:43:372
249940,0watchdog/28140-21grep08:03:372
249940,0watchdog/230670-21munin-node11:03:342
249940,0watchdog/225148-21kthreadcore11:18:382
249940,0watchdog/21544-21cut09:08:332
249940,0watchdog/212690-21kthreadcore08:08:372
249940,0watchdog/20-21swapper/212:33:382
249940,0watchdog/20-21swapper/211:28:222
249940,0watchdog/20-21swapper/210:33:372
249940,0watchdog/20-21swapper/208:38:372
249940,0watchdog/20-21swapper/208:33:372
171709943,0cyclictest8225-21awk09:13:352
171709943,0cyclictest8078-21awk08:28:342
171709943,0cyclictest3571-21lldpd10:10:172
171709943,0cyclictest3571-21lldpd10:10:172
171709943,0cyclictest3571-21lldpd07:40:432
171709943,0cyclictest25620-21awk07:33:342
171709943,0cyclictest18941-21awk08:58:332
171709943,0cyclictest17258-21awk11:33:352
171709943,0cyclictest16939-21awk09:58:332
171709943,0cyclictest13102-21grep09:53:382
171709943,0cyclictest11145-21munin-node12:08:332
171709943,0cyclictest10419-21awk11:48:342
171699944,0cyclictest0-21swapper/112:11:271
171699943,0cyclictest8723-21awk11:28:351
171699943,0cyclictest466-21awk07:38:331
171699943,0cyclictest3571-21lldpd08:28:441
171699943,0cyclictest3524-21snmpd12:39:451
171699943,0cyclictest3524-21snmpd10:49:441
171699943,0cyclictest3524-21snmpd10:39:591
171699943,0cyclictest3524-21snmpd10:04:431
171699943,0cyclictest3231-21awk10:28:331
171699943,0cyclictest30848-21sort09:03:371
171699943,0cyclictest30623-21awk11:03:331
171699943,0cyclictest29935-21awk09:28:321
171699943,0cyclictest29436-21awk07:58:351
171699943,0cyclictest22233-21awk07:53:351
171699943,0cyclictest18569-21awk10:18:351
171699943,0cyclictest15276-21awk08:33:351
171689944,0cyclictest29231-21kworker/0:108:03:410
171689944,0cyclictest0-21swapper/010:18:240
171689943,0cyclictest3662-21awk12:03:340
171689943,0cyclictest3524-21snmpd09:59:280
171689943,0cyclictest3524-21snmpd08:55:570
171689943,0cyclictest3524-21snmpd08:40:420
171689943,0cyclictest20761-21awk12:13:370
171689943,0cyclictest18980-21awk08:58:330
171689943,0cyclictest18946-21awk11:53:330
171689943,0cyclictest1564-21awk10:08:330
171689943,0cyclictest1564-21awk10:08:330
171689943,0cyclictest15457-21awk09:18:350
171689943,0cyclictest10371-21awk11:48:330
179940,0migration/16520-21kthreadcore12:23:381
179940,0migration/13551-21kthreadcore10:08:351
179940,0migration/13551-21kthreadcore10:08:351
179940,0migration/131169-21taskset07:34:191
179940,0migration/129884-21kthreadcore10:43:371
179940,0migration/129135-21kthreadcore11:38:361
179940,0migration/126316-21kthreadcore09:43:391
179940,0migration/125037-21kthreadcore12:13:401
179940,0migration/121720-21taskset09:42:281
179940,0migration/119836-21ntp_kernel_pll_07:48:371
179940,0migration/118513-21kthreadcore12:28:371
179940,0migration/117026-21taskset08:09:261
179940,0migration/116997-21fschecks_time11:33:331
179940,0migration/115871-21kthreadcore10:53:361
179940,0migration/112905-21kthreadcore11:48:361
179940,0migration/112052-21latency12:43:371
169940,0watchdog/19501-21fschecks_count10:13:331
169940,0watchdog/13390-21tr08:23:371
169940,0watchdog/128982-21fschecks_time12:18:341
169940,0watchdog/125130-21ps09:23:371
169940,0watchdog/123189-21ssh12:53:261
169940,0watchdog/121623-21fschecks_count10:58:341
169940,0watchdog/1186932sleep110:37:211
169940,0watchdog/117542-21kthreadcore09:18:371
169940,0watchdog/115548-21cut08:53:371
169940,0watchdog/115239-21expr11:13:341
169940,0watchdog/10-21swapper/111:18:461
169940,0watchdog/10-21swapper/109:33:331
149940,0migration/08286-21kthreadcore07:43:360
149940,0migration/06830-21kthreadcore10:48:360
149940,0migration/05938-21sh09:50:170
149940,0migration/05632-21sh12:42:340
149940,0migration/031931-21sh10:06:350
149940,0migration/021183-21sh11:14:150
149940,0migration/012311-21kthreadcore08:08:370
8305030,0irq/26-0000:00:0-21swapper/307:48:233
329930,0watchdog/30-21swapper/308:53:253
329930,0watchdog/30-21swapper/308:08:373
329930,0watchdog/30-21swapper/307:54:173
29815030,0irq/29-eth0-tx-0-21swapper/007:38:390
249930,0watchdog/2934-21kthreadcore07:58:372
249930,0watchdog/20-21swapper/208:13:372
19130,0ktimersoftd/19185-21kthreadcore07:43:361
171709932,0cyclictest3571-21lldpd07:52:432
171709932,0cyclictest22209-21awk07:53:342
171699932,0cyclictest8353-21awk09:13:361
171699932,0cyclictest3524-21snmpd10:24:441
171699932,0cyclictest29623-21awk08:43:341
171699932,0cyclictest26444-21aten_r1power_fr11:58:301
171699931,0cyclictest6688-21kthreadcore08:03:371
171699930,0cyclictest8935-21python12:03:421
171699930,0cyclictest0-21swapper/109:08:301
171699930,0cyclictest0-21swapper/108:18:261
171689933,0cyclictest7651-21kworker/0:007:53:190
171689933,0cyclictest29231-21kworker/0:112:48:200
171689933,0cyclictest29231-21kworker/0:112:23:320
171689933,0cyclictest29231-21kworker/0:112:18:240
171689933,0cyclictest29231-21kworker/0:111:33:320
171689933,0cyclictest29231-21kworker/0:111:23:200
171689933,0cyclictest29231-21kworker/0:110:13:200
171689933,0cyclictest29231-21kworker/0:109:43:330
171689933,0cyclictest29231-21kworker/0:109:33:190
171689932,0cyclictest672-21awk08:23:350
169930,0watchdog/131396-21munin-node11:23:341
169930,0watchdog/111290-21cut11:08:381
169930,0watchdog/10-21swapper/108:48:211
171699920,0cyclictest17331-21latency_hist07:28:181
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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