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2025-07-01 - 18:08

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, slot #7

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50.5 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 376 highest latencies:
System rack5slot7s.osadl.org (updated Tue Jul 01, 2025 12:45:09)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24049224422201,97sleep00-21swapper07:06:200
245069916616,124cyclictest7380-21apt-get12:00:180
245069916517,123cyclictest30465-21apt-get07:46:220
245069915813,120cyclictest18111-21tr09:45:480
245069915718,115cyclictest25735-21apt-get10:36:560
245069915717,24cyclictest16913-21munin-run09:40:020
245069915710,123cyclictest31435-21timerandwakeup11:06:010
245069915618,38cyclictest9028-21apt-get12:11:270
245069915618,114cyclictest27961-21/usr/sbin/munin10:45:480
245069915616,117cyclictest630-21munin-run08:00:030
245069915613,25cyclictest5686-21apt-get08:30:220
245069915612,41cyclictest27306-21wc07:25:040
245069915611,123cyclictest8339-21apt-get12:05:160
245069915514,119cyclictest7282-21munin-run08:40:020
245069915511,26cyclictest9747-21latency_hist08:55:050
245069915422,27cyclictest12995-21apt-get09:15:190
245069915415,100cyclictest3844-21munin-run08:20:030
245069915414,25cyclictest10259-21df_inode12:15:350
245069915318,113cyclictest20117-21munin-run10:00:020
245069915317,112cyclictest10491-21munin-run09:00:020
245069915315,114cyclictest25295-21munin-run07:15:020
245069915313,22cyclictest29499-21sort10:55:420
245069915233,101cyclictest29538-21cat07:36:010
245069915217,110cyclictest13468-21df12:35:260
245069915216,110cyclictest11782-21apt-get12:25:160
245069915212,116cyclictest12493-21sshd09:10:490
245069915119,31cyclictest25141-21df10:30:250
245069915116,111cyclictest849-21df08:00:300
245069915114,97cyclictest11304-21munin-run09:05:010
245069915114,113cyclictest5129-21grep08:25:560
245069915114,111cyclictest26440-21latency_hist07:20:010
245069915112,24cyclictest1596-21munin-run11:25:000
245069915016,25cyclictest7503-21df_inode08:40:280
245069915013,112cyclictest32030-21awk07:51:060
245069914929,23cyclictest13195-21sed12:31:040
245069914920,30cyclictest4762-21users11:41:070
245069914916,24cyclictest18940-21/usr/sbin/munin09:50:510
245069914914,22cyclictest23689-21memory10:20:480
245069914914,22cyclictest1543-21apt-get08:05:200
245069914912,113cyclictest22047-21sort10:10:410
245069914911,113cyclictest6379-21cron11:55:010
245069914910,99cyclictest21610-21sort10:06:040
245069914814,24cyclictest30012-21memory07:40:460
245069914813,22cyclictest782-21munin-run11:20:020
245069914812,96cyclictest3000-21wc11:31:010
245069914811,113cyclictest5002-21df11:45:270
245069914810,26cyclictest268-21snmpd09:43:040
245069914736,90cyclictest8222-21cpu08:45:220
245069914734,24cyclictest11346-21/usr/sbin/munin12:20:540
245069914719,28cyclictest22789-21irqstats10:15:420
245069914717,26cyclictest14620-21apt-get09:25:170
245069914715,38cyclictest29185-21latency_hist10:55:030
245069914711,95cyclictest30527-21sendmail_mailqu11:01:000
245069914711,23cyclictest4638-21sshd08:21:490
245069914630,19cyclictest0-21swapper08:14:480
245069914617,27cyclictest13935-21diskstats09:20:320
245069914612,27cyclictest27357-21/usr/sbin/munin07:25:390
245069914612,110cyclictest15586-21/usr/sbin/munin09:30:390
245069914612,109cyclictest11654-21missed_timers09:05:440
245069914611,21cyclictest24891-21grep10:26:060
245069914611,110cyclictest3952-21vmstat11:36:060
245069914531,22cyclictest7281-21apt-config12:00:100
245069914527,101cyclictest26367-21kworker/u2:1610:40:200
245069914414,25cyclictest31980-21sshd11:10:480
245069914410,28cyclictest28151-21/usr/sbin/munin07:31:100
245069914371,50cyclictest20314-21wc10:00:240
245069914314,26cyclictest1878-21kernelversion11:25:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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