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2026-08-13 - 10:53
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 rack7slot8.osadl.org (updated Wed Aug 12, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27899214860,9sleep027898-21/usr/sbin/munin07:05:100
290819916734,15cyclictest10250irq/56-4a10000011:18:510
290819916441,20cyclictest30520-21apt-key09:20:150
290819916330,13cyclictest10250irq/56-4a10000009:38:260
29081991627,38cyclictest1305-21snmpd09:45:460
290819916240,18cyclictest3296-21wget09:40:130
290819916027,16cyclictest11866-21ntpq12:20:360
290819915941,20cyclictest18301-21runrttasks10:40:140
290819915729,19cyclictest1305-21snmpd11:40:450
290819915652,93cyclictest16186-21/usr/sbin/munin12:36:300
290819915649,16cyclictest32463-21/usr/sbin/munin09:25:450
290819915645,13cyclictest10150irq/55-4a10000009:00:190
290819915640,20cyclictest30101-21interrupts11:25:310
290819915630,21cyclictest1305-21snmpd07:21:450
290819915626,18cyclictest1305-21snmpd07:46:440
290819915550,13cyclictest10150irq/55-4a10000008:55:280
290819915539,18cyclictest1276-21runrttasks08:05:540
290819915446,14cyclictest10150irq/55-4a10000012:25:320
29081991539,18cyclictest1133-21ntp_states09:30:410
290819915343,18cyclictest4073-21runrttasks07:36:380
290819915339,20cyclictest28931-21interrupts11:21:090
290819915241,17cyclictest27329-21runrttasks09:07:050
290819915233,17cyclictest754-21systemd-journal08:24:440
290819915144,21cyclictest31178-21runrttasks07:17:030
290819915135,18cyclictest801-21dbus-daemon08:20:010
290819915135,15cyclictest3709-21aten_r7power_vo11:50:150
290819915118,29cyclictest0-21swapper/011:07:310
290819915046,20cyclictest12501-21sshd10:15:450
290819915046,13cyclictest10150irq/55-4a10000008:40:000
290819915042,17cyclictest13300-21aten_r7power_po10:20:140
290819915041,20cyclictest20419-21runrttasks10:48:460
290819915041,19cyclictest25912-21runrttasks11:10:280
29081991499,16cyclictest5981-21fw_forwarded_lo09:50:270
290819914946,92cyclictest931-21runrttasks11:39:490
290819914945,18cyclictest21972-21aten_r7power_en10:55:150
290819914943,17cyclictest4965-21wget11:55:160
290819914942,13cyclictest10150irq/55-4a10000010:50:420
290819914940,20cyclictest2057-21runrttasks07:30:330
290819914935,22cyclictest801-21dbus-daemon08:35:010
290819914933,17cyclictest801-21dbus-daemon12:10:080
290819914930,32cyclictest101ktimersoftd/012:00:140
29081991489,16cyclictest1305-21snmpd07:10:230
290819914849,14cyclictest10620-21seq12:16:030
290819914843,19cyclictest15128-21latency_hist12:35:030
290819914832,19cyclictest7207-21runrttasks09:55:210
29081991478,18cyclictest10730-21/usr/sbin/munin08:05:040
29081991477,17cyclictest2764-21ntp_states11:45:420
290819914741,15cyclictest10250irq/56-4a10000010:32:300
290819914640,13cyclictest10150irq/55-4a10000008:25:440
290819914638,18cyclictest11005-21runrttasks10:10:310
290819914636,18cyclictest29142-21aten_r7power_vo09:15:140
290819914539,17cyclictest9582-21sshd12:13:460
290819914538,17cyclictest24167-21runrttasks11:03:510
290819914533,28cyclictest101ktimersoftd/011:30:440
290819914523,23cyclictest4826-21df_inode07:40:200
290819914513,15cyclictest10250irq/56-4a10000008:13:080
29081991448,28cyclictest801-21dbus-daemon10:10:020
290819914445,14cyclictest21454-21seq08:44:570
290819914442,17cyclictest23550-21runrttasks08:51:450
29081991439,18cyclictest14710-21fw_forwarded_lo10:25:270
290819914242,17cyclictest84442chrt07:55:130
290819914237,16cyclictest22049-21runrttasks08:45:440
290819914235,18cyclictest28041-21runrttasks09:10:270
29081991418,17cyclictest8443-21seq10:00:200
29081991418,15cyclictest17189-21fw_forwarded_lo10:35:270
290819914152,10cyclictest101ktimersoftd/007:50:180
290819913935,19cyclictest864-21sh07:25:380
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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