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2026-07-01 - 10:13
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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 Wed Jul 01, 2026 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
83302292262,19sleep20-21swapper/219:09:592
63572278251,18sleep10-21swapper/119:05:061
83052269238,21sleep00-21swapper/019:09:400
81982252222,19sleep30-21swapper/319:08:193
59052630,0sleep20-21swapper/222:31:512
303182570,0sleep00-21swapper/022:07:380
242372570,0sleep00-21swapper/000:39:260
273062560,0sleep20-21swapper/221:46:022
57892190,0sleep00-21swapper/023:10:490
147692140,1sleep20-21swapper/221:19:422
287742130,0sleep10-21swapper/123:45:051
19942130,0sleep30-21swapper/321:11:133
84509990,2cyclictest22819-21ssh23:40:383
28216290,0sleep10-21swapper/122:45:191
84409983,3cyclictest275-21systemd-journal00:23:201
84409983,3cyclictest19892-21basename20:44:591
84409982,3cyclictest0-21swapper/122:15:021
84369982,4cyclictest6217-21awk20:15:010
84369980,7cyclictest31918-21ssh00:06:130
4609280,1sleep20-21swapper/200:27:552
30280280,1sleep00-21swapper/023:45:190
23527280,0sleep10-21swapper/122:23:131
19350280,0sleep00-21swapper/023:19:540
1381280,0sleep20-21swapper/222:10:072
84509973,3cyclictest9627-21cat19:10:163
84509973,3cyclictest275-21systemd-journal00:37:353
84509972,3cyclictest275-21systemd-journal22:45:013
84439973,3cyclictest275-21systemd-journal23:48:432
84439973,3cyclictest275-21systemd-journal20:57:292
84409976,1cyclictest22-21ksoftirqd/121:55:011
84409973,3cyclictest658-21snmpd23:53:091
84409973,3cyclictest3644-21cron23:34:561
84409973,3cyclictest275-21systemd-journal22:59:011
84409973,3cyclictest275-21systemd-journal00:00:351
84409972,3cyclictest504-21dbus-daemon20:30:011
84409972,3cyclictest504-21dbus-daemon20:20:011
84369976,1cyclictest4236-21ssh00:27:370
84369974,2cyclictest6184-11brltty23:28:130
84369973,3cyclictest275-21systemd-journal21:08:480
84369973,3cyclictest26150-21sshd20:55:300
84369972,4cyclictest15191-21apt21:20:000
27068270,0sleep00-21swapper/023:04:520
22780270,0sleep30-21swapper/322:22:383
84509966,0cyclictest0-21swapper/322:31:133
84509966,0cyclictest0-21swapper/319:35:153
84509963,2cyclictest658-21snmpd19:16:213
84509963,2cyclictest3878-21fschecks_count23:10:133
84509963,2cyclictest3253-21expr22:50:153
84509963,2cyclictest275-21systemd-journal23:10:013
84509963,2cyclictest26996-21taskset19:47:513
84509963,2cyclictest26872-21sh00:21:543
84509963,2cyclictest21616-21ssh00:00:033
84509963,2cyclictest17874-21ssh23:57:353
84509963,2cyclictest15887-21ssh22:18:443
84509963,2cyclictest13778-21systemctl23:35:203
84509963,2cyclictest12704-21ssh21:37:313
84509963,1cyclictest0-21swapper/322:02:353
84509962,3cyclictest9240-21cut21:55:153
84509962,3cyclictest8101-21cat21:15:143
84509962,3cyclictest6773-21cat20:15:123
84509962,3cyclictest658-21snmpd22:28:363
84509962,3cyclictest658-21snmpd22:06:403
84509962,3cyclictest658-21snmpd21:32:263
84509962,3cyclictest658-21snmpd21:29:173
84509962,3cyclictest658-21snmpd21:22:433
84509962,3cyclictest658-21snmpd20:51:433
84509962,3cyclictest658-21snmpd20:26:213
84509962,3cyclictest658-21snmpd20:00:033
84509962,3cyclictest658-21snmpd19:43:353
84509962,3cyclictest658-21snmpd19:31:413
84509962,3cyclictest6269-21ntpq00:10:123
84509962,3cyclictest5804-21ntpq23:50:173
84509962,3cyclictest32463-21cat00:25:163
84509962,3cyclictest31850-21date20:00:013
84509962,3cyclictest275-21systemd-journal23:46:313
84509962,3cyclictest275-21systemd-journal22:56:223
84509962,3cyclictest16722-21cat21:40:123
84509962,3cyclictest12032-21cat23:35:003
84509961,3cyclictest275-21systemd-journal22:10:113
84509960,3cyclictest20675-21rm00:18:453
84509960,2cyclictest30477-21unixbench-2d21:05:213
84509960,0cyclictest0-21swapper/323:25:353
84509960,0cyclictest0-21swapper/322:38:423
84509960,0cyclictest0-21swapper/321:50:213
84439964,2cyclictest28-21ksoftirqd/219:40:012
84439963,2cyclictest30456-21sshd22:46:352
84439963,2cyclictest275-21systemd-journal22:41:202
84439963,2cyclictest275-21systemd-journal21:27:312
84439963,2cyclictest275-21systemd-journal00:11:132
84439963,2cyclictest23636-21ssh21:44:352
84439963,2cyclictest22700-21cat00:00:142
84439963,2cyclictest20780-21systemctl23:00:202
84439963,2cyclictest16088-21fschecks_count20:35:142
84439963,2cyclictest15071-21sh22:18:062
84439963,2cyclictest14667-21cut00:15:152
84439963,2cyclictest12263-21sh21:56:292
84439962,3cyclictest717-21expr21:30:162
84439962,3cyclictest658-21snmpd23:41:332
84439962,3cyclictest658-21snmpd23:30:182
84439962,3cyclictest658-21snmpd23:15:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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