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2026-06-27 - 18:51
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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 100 highest latencies:
System rackaslot8.osadl.org (updated Sat Jun 27, 2026 12:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
149942293261,21sleep20-21swapper/207:07:422
151632271239,21sleep30-21swapper/307:09:483
150512265238,18sleep10-21swapper/107:08:261
149872259229,20sleep00-21swapper/007:07:370
274862590,0sleep00-21swapper/010:21:050
301452580,0sleep00-21swapper/009:44:210
111822560,0sleep30-21swapper/309:32:413
197062550,0sleep00-21swapper/009:37:400
78802540,0sleep20-21swapper/209:50:162
122672520,0sleep10-21swapper/108:10:191
293352170,0sleep00-21swapper/011:40:120
232502150,0sleep00-21swapper/011:55:190
202212150,0sleep20-21swapper/208:30:142
184172150,0sleep20-21swapper/209:17:262
239842140,0sleep00-21swapper/010:19:480
15296991413,1cyclictest22-21ksoftirqd/111:10:011
144962140,0sleep00-21swapper/012:10:030
315192110,0sleep20-21swapper/212:39:562
25279290,0sleep00-21swapper/012:15:440
19935290,0sleep20-21swapper/209:57:172
152989995,3cyclictest6942-21ssh10:09:312
152919995,3cyclictest658-21snmpd12:32:560
10378290,0sleep20-21swapper/211:28:412
1960280,0sleep30-21swapper/312:01:573
152989983,4cyclictest0-21swapper/208:45:202
152969984,1cyclictest22-21ksoftirqd/111:15:011
152919986,2cyclictest12-21ksoftirqd/007:15:010
152919984,3cyclictest275-21systemd-journal11:20:400
13284280,0sleep30-21swapper/309:53:323
5607270,0sleep30-21swapper/310:47:023
153029974,2cyclictest23309-21cron12:39:563
153029973,3cyclictest658-21snmpd10:51:373
153029973,3cyclictest658-21snmpd10:51:363
152989975,1cyclictest24446-21sh10:58:292
152989973,3cyclictest658-21snmpd10:36:142
152989973,3cyclictest275-21systemd-journal10:16:132
152989973,1cyclictest0-21swapper/209:26:542
152969976,1cyclictest22-21ksoftirqd/112:30:001
152969976,1cyclictest22-21ksoftirqd/111:00:011
152969976,1cyclictest22-21ksoftirqd/110:20:001
152969975,1cyclictest2330-21ssh09:46:301
152969972,2cyclictest27610-21dump-pmu-power07:35:001
152969971,4cyclictest22871-21idleruntime-cro07:25:001
152969970,6cyclictest18616-21munin-node07:15:031
152969970,0cyclictest0-21swapper/108:05:121
152919976,0cyclictest0-21swapper/011:25:090
152919975,2cyclictest12-21ksoftirqd/009:50:000
152919975,1cyclictest6704-21ls12:25:000
152919975,1cyclictest10657-21cron11:10:010
19899260,0sleep10-21swapper/112:32:221
153029963,2cyclictest698-21readlink09:00:013
153029963,2cyclictest658-21snmpd11:55:313
153029963,2cyclictest658-21snmpd09:00:033
153029963,2cyclictest4770-21sshd09:05:273
153029963,2cyclictest3749-21cron11:25:003
153029963,2cyclictest28888-11brltty11:00:093
153029963,2cyclictest275-21systemd-journal11:36:553
153029963,2cyclictest275-21systemd-journal08:20:343
153029963,2cyclictest25512-21cut08:40:183
153029963,2cyclictest19941-21sh10:55:203
153029963,2cyclictest19202-21ssh12:31:513
153029963,2cyclictest17275-21cat10:15:173
153029963,2cyclictest11860-21ssh09:13:493
153029963,2cyclictest11626-21tune2fs08:10:163
153029963,2cyclictest10286-21ssh11:47:583
153029963,1cyclictest0-21swapper/310:02:263
153029962,3cyclictest7151-21cat12:05:163
153029962,3cyclictest658-21snmpd11:50:173
153029962,3cyclictest658-21snmpd11:06:403
153029962,3cyclictest658-21snmpd10:35:023
153029962,3cyclictest658-21snmpd09:38:573
153029962,3cyclictest658-21snmpd09:21:453
153029962,3cyclictest658-21snmpd08:48:143
153029962,3cyclictest658-21snmpd08:34:043
153029962,3cyclictest658-21snmpd08:27:113
153029962,3cyclictest658-21snmpd08:07:473
153029962,3cyclictest658-21snmpd07:53:153
153029962,3cyclictest658-21snmpd07:41:123
153029962,3cyclictest658-21snmpd07:38:253
153029962,3cyclictest658-21snmpd07:10:053
153029962,3cyclictest3205-21ssh09:27:563
153029962,3cyclictest29252-21cat08:50:143
153029962,3cyclictest22945-21awk08:35:173
153029962,3cyclictest22674-11brltty10:27:593
153029962,3cyclictest19331-21cat07:15:163
153029962,3cyclictest15919-21ls09:55:133
153029962,3cyclictest14637-21cat09:15:153
153029962,2cyclictest275-21systemd-journal12:27:523
153029962,1cyclictest0-21swapper/312:12:413
153029962,1cyclictest0-21swapper/311:25:243
153029962,1cyclictest0-21swapper/311:12:073
153029962,1cyclictest0-21swapper/310:32:193
153029960,6cyclictest0-21swapper/311:15:173
153029960,6cyclictest0-21swapper/309:42:033
153029960,5cyclictest9133-21ntpq10:10:173
153029960,5cyclictest436-21unixbench-2d12:20:183
153029960,0cyclictest0-21swapper/310:20:203
152989966,0cyclictest0-21swapper/212:28:342
152989966,0cyclictest0-21swapper/211:57:462
152989966,0cyclictest0-21swapper/210:51:232
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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