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2026-02-28 - 10:15
[ 290.152] (II) VESA: driver for VESA chipsets: vesa
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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 50 highest latencies:
System rackbslot7.osadl.org (updated Sat Feb 28, 2026 00:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
250519910687,12cyclictest2318-21kworker/u17:1+events_unbound21:11:132
24117210142,35sleep023535-21/usr/sbin/munin19:01:560
241472998,60sleep124209-21mailstats19:01:571
25051999849,41cyclictest32606-21diskmemload00:06:162
25051999849,41cyclictest32606-21diskmemload00:06:162
2505199982,23cyclictest2903250ssh21:52:242
25051999741,48cyclictest23898-21unixbench_multi20:37:132
2505199973,67cyclictest7868-21apt-get23:06:272
2505199963,43cyclictest24251-21awk00:26:512
2505199963,43cyclictest24251-21awk00:26:512
2505199943,43cyclictest22841-21modprobe00:26:122
2505199943,35cyclictest18808-21/usr/sbin/munin21:36:382
2505199943,23cyclictest25116-21/usr/sbin/munin20:41:422
2505199934,36cyclictest23560-21awk23:31:482
2505199933,34cyclictest4882-21taskset22:06:382
2505199932,39cyclictest13650-21fschecks_time22:21:342
2505199923,35cyclictest25904-21/usr/sbin/munin23:36:472
25051999225,20cyclictest16469-21latency20:16:542
2505199913,35cyclictest25021-21cyclictest19:06:182
2505199913,34cyclictest30016-21fschecks_time20:57:532
2505199903,39cyclictest17370-21head22:26:492
2505199903,36cyclictest23193-21timerandwakeup22:36:482
2505199903,35cyclictest18841-21runrttasks23:24:332
2505199903,33cyclictest5328-21/usr/sbin/munin23:56:392
2505199903,33cyclictest2778-21latency_hist19:36:162
2505199903,31cyclictest29231-21grep22:46:482
2505199903,31cyclictest29231-21grep22:46:482
25051999031,52cyclictest0-21swapper/219:57:032
25051999026,12cyclictest0-21swapper/223:26:372
25051999026,12cyclictest0-21swapper/223:26:372
25051999025,25cyclictest21007-21latency_hist20:31:162
2505199894,34cyclictest1692-21/usr/sbin/munin22:56:512
2505199893,35cyclictest26798-21munin-node19:11:222
2505199893,35cyclictest10672-21/usr/sbin/munin23:11:462
2505199893,35cyclictest10672-21/usr/sbin/munin23:11:462
2505199893,34cyclictest352-21runrttasks20:01:232
2505199893,34cyclictest352-21runrttasks20:01:232
2505199892,37cyclictest19561-21fschecks_time22:31:352
2505199892,37cyclictest18136-21fschecks_count20:22:372
2505199884,33cyclictest3437-21/usr/sbin/munin21:11:402
2505199883,33cyclictest27541-21modprobe20:51:142
2505199883,32cyclictest7556-21latency_hist19:51:162
2505199883,27cyclictest15783-21cmp21:31:182
25051998828,54cyclictest0-21swapper/220:51:242
2505199882,37cyclictest4579-21cstates19:41:292
2505199882,35cyclictest16665-21latency_hist23:21:162
2505199882,29cyclictest9215-21latency_hist21:21:152
2505199882,29cyclictest9215-21latency_hist21:21:152
25034998865,15cyclictest26599-21ntp_kernel_pll_23:36:560
308342870,6sleep30-21swapper/322:51:103
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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