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2026-01-11 - 03:22

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #8

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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  Congatec
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.
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 792 highest latencies:
System rackeslot8s.osadl.org (updated Sat Jan 10, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
764669913185,1309cyclictest3305332sleep33
764669913030,1299cyclictest2981142sleep33
764669911780,1175cyclictest3626522sleep33
76466993701,366cyclictest491665-21turbostat3
76466992016,1cyclictest0-21swapper/33
76466991815,1cyclictest0-21swapper/33
7646699177,8cyclictest226577-21turbostat3
7646699176,7cyclictest820142sleep33
7646699172,11cyclictest452295-21turbostat3
7646699165,8cyclictest97897-21turbostat3
76466991613,1cyclictest0-21swapper/33
7646699161,12cyclictest388125-21taskset3
7646699161,11cyclictest393704-21taskset3
7646699161,11cyclictest245864-21turbostat3
7646699161,11cyclictest207901-21taskset3
7646699161,11cyclictest129656-21taskset3
7646699161,10cyclictest1048142sleep33
4278272160,1sleep1428889-21kthreadcore1
76466991513,1cyclictest0-21swapper/33
76466991513,0cyclictest0-21swapper/33
76466991512,1cyclictest0-21swapper/33
76466991512,1cyclictest0-21swapper/33
76466991512,1cyclictest0-21swapper/33
76466991512,1cyclictest0-21swapper/33
76466991512,1cyclictest0-21swapper/33
76466991512,1cyclictest0-21swapper/33
7646699151,11cyclictest265040-21chrt3
7646699151,11cyclictest181995-21taskset3
7646699151,10cyclictest4012012sleep33
7646699146,6cyclictest343147-21turbostat3
7646699144,7cyclictest207082-21taskset3
7646699141,9cyclictest400554-21chrt3
7646699141,9cyclictest400554-21chrt3
7646699141,9cyclictest1883712sleep33
76466991413,0cyclictest0-21swapper/33
76466991412,1cyclictest0-21swapper/33
76466991412,0cyclictest0-21swapper/33
76466991412,0cyclictest0-21swapper/33
76466991411,1cyclictest0-21swapper/33
76466991411,1cyclictest0-21swapper/33
76466991411,1cyclictest0-21swapper/33
76466991411,1cyclictest0-21swapper/33
7646699141,10cyclictest317369-21taskset3
7646699141,10cyclictest305233-21taskset3
7646699141,10cyclictest278640-21taskset3
7646699139,1cyclictest0-21swapper/33
7646699134,6cyclictest4731112sleep33
7646699131,9cyclictest485511-21taskset3
7646699131,9cyclictest472128-21turbostat3
7646699131,9cyclictest252478-21taskset3
7646699131,9cyclictest169163-21taskset3
7646699131,9cyclictest155714-21chrt3
76466991312,0cyclictest0-21swapper/33
76466991312,0cyclictest0-21swapper/33
76466991311,1cyclictest0-21swapper/33
76466991311,1cyclictest0-21swapper/33
76466991311,1cyclictest0-21swapper/33
76466991311,1cyclictest0-21swapper/33
7646699131,10cyclictest355793-21taskset3
76466991310,1cyclictest0-21swapper/33
76466991310,1cyclictest0-21swapper/33
7646699130,9cyclictest156332-21taskset3
7646699130,10cyclictest356431-21taskset3
7646699121,9cyclictest439138-21taskset3
7646699121,9cyclictest304602-21sleep3
76466991211,0cyclictest0-21swapper/33
76466991210,1cyclictest0-21swapper/33
7646699120,9cyclictest239100-21taskset3
4741162121,4sleep0476073-21cut0
301798120,4rtkit-daemon82992-21munin-node1
1195902128,2sleep10-21swapper/11
4943502111,7sleep0496485-21tr0
301798110,7rtkit-daemon82992-21munin-node1
3524162100,1sleep10-21swapper/11
3324472100,1sleep10-21swapper/11
301798100,6rtkit-daemon82992-21munin-node1
301798100,5rtkit-daemon317-21systemd-udevd1
301798100,1rtkit-daemon0-21swapper/11
301798100,1rtkit-daemon0-21swapper/11
2981182101,6sleep2297-21systemd-journal2
70273290,5sleep070422-21df_inode0
70236290,4sleep30-21swapper/33
498682290,1sleep0499194-21irqcore0
415500291,5sleep0417542-21kthreadcore0
388316291,4sleep1388349-21apt-get1
336942291,3sleep1336975-21apt-get1
30179890,5rtkit-daemon3205-21sendmail-mta1
30179890,5rtkit-daemon3205-21sendmail-mta1
30179890,5rtkit-daemon317-21systemd-udevd1
30179890,5rtkit-daemon168559-21chrt1
30179890,4rtkit-daemon99122-21cut1
30179890,4rtkit-daemon458041-21grep1
30179890,4rtkit-daemon329444-21ntp_states1
30179890,4rtkit-daemon297-21systemd-journal1
30179890,3rtkit-daemon37210-21munin-node1
30179890,3rtkit-daemon3200908-21packagekitd1
30179890,1rtkit-daemon0-21swapper/11
30179890,1rtkit-daemon0-21swapper/11
284790290,2sleep0285076-21latency_hist0
270880291,4sleep2271005-21python32
252521291,5sleep1252677-21diskstats1
227000290,6sleep1227084-21grep1
175576291,5sleep2175719-21df2
175540291,4sleep1175573-21apt-get1
143496292,4sleep2143529-21apt-get2
98171281,4sleep098314-21df0
433721281,4sleep2434619-21cut2
417543280,6sleep1419093-21/usr/sbin/munin1
401227281,4sleep0401382-21diskstats0
395753282,3sleep2396950-21grep2
395753282,3sleep2396950-21grep2
369113280,5sleep1369265-21df_inode1
305029280,5sleep2305232-21hddtemp_smartct2
30179880,5rtkit-daemon3205-21sendmail-mta1
30179880,4rtkit-daemon82992-21munin-node1
30179880,4rtkit-daemon82992-21munin-node1
30179880,4rtkit-daemon82992-21munin-node1
30179880,4rtkit-daemon667-21lldpd1
30179880,4rtkit-daemon667-21lldpd1
30179880,4rtkit-daemon638-21ntpd1
30179880,4rtkit-daemon636-21snmpd1
30179880,4rtkit-daemon636-21snmpd1
30179880,4rtkit-daemon636-21snmpd1
30179880,4rtkit-daemon492-21gmain1
30179880,4rtkit-daemon492-21gmain1
30179880,4rtkit-daemon492-21gmain1
30179880,4rtkit-daemon448-21wpa_supplicant1
30179880,4rtkit-daemon3205-21sendmail-mta1
30179880,4rtkit-daemon3205-21sendmail-mta1
30179880,4rtkit-daemon297-21systemd-journal1
30179880,4rtkit-daemon173723-21grep1
30179880,1rtkit-daemon0-21swapper/11
291537280,4sleep0291455-21apt-get0
283979280,2sleep20-21swapper/22
260358281,4sleep0262039-21sed0
239738281,4sleep2239795-21sort2
239702281,3sleep1239735-21apt-get1
209032280,5sleep1210871-21cut1
202624280,5sleep2203889-21cut2
150531281,4sleep0151419-21cut0
129531280,4sleep2129655-21python32
124252280,5sleep1124395-21df1
117477281,4sleep2117712-21sort2
97880271,3sleep097902-21munin-run0
499197270,4sleep1500158-21grep1
435805270,4sleep0437963-21grep0
426846271,3sleep0426879-21apt-get0
420386270,4sleep0420419-21apt-get0
387088270,4sleep2387196-21ntpq2
374311270,1sleep00-21swapper/00
356248270,3sleep1356281-21apt-get1
355307270,4sleep2355513-21grep2
348923271,3sleep0349167-21/usr/sbin/munin0
331480270,4sleep0332443-21kthreadcore0
325136270,4sleep2326213-21tr2
30179870,4rtkit-daemon82992-21munin-node1
30179870,4rtkit-daemon82992-21munin-node1
30179870,4rtkit-daemon636-21snmpd1
30179870,4rtkit-daemon492-21gmain1
30179870,4rtkit-daemon492-21gmain1
30179870,4rtkit-daemon430-21avahi-daemon1
30179870,3rtkit-daemon82992-21munin-node1
30179870,3rtkit-daemon82992-21munin-node1
30179870,3rtkit-daemon82992-21munin-node1
30179870,3rtkit-daemon638-21ntpd1
30179870,3rtkit-daemon636-21snmpd1
30179870,3rtkit-daemon636-21snmpd1
30179870,3rtkit-daemon636-21snmpd1
30179870,3rtkit-daemon473397-21cut1
30179870,3rtkit-daemon37210-21munin-node1
272274270,4sleep0272423-21df_inode0
257743270,4sleep0257802-21ntp_states0
180885271,3sleep0181010-21python30
162687271,4sleep20-21swapper/22
129374270,4sleep0129481-21sed0
123950270,1sleep00-21swapper/00
116687271,3sleep0116886-21unixbench-2d0
104296270,3sleep0104312-21apt-get0
82732260,1sleep00-21swapper/00
76656260,3sleep276802-21df2
504431260,1sleep20-21swapper/22
492347260,3sleep2493285-21irqrtprio2
491315260,4sleep2491318-21sshd2
485198260,1sleep00-21swapper/00
478147261,2sleep20-21swapper/22
460575261,2sleep00-21swapper/00
458607260,1sleep00-21swapper/00
452273260,3sleep2452451-21apt-config2
414394261,2sleep20-21swapper/22
384407260,4sleep00-21swapper/00
362112260,1sleep00-21swapper/00
343115260,3sleep0343116-21sshd0
330087260,1sleep00-21swapper/00
285700261,3sleep20-21swapper/22
271701260,3sleep2271731-21apt-get2
234718261,2sleep20-21swapper/22
219894260,1sleep00-21swapper/00
213312260,1sleep00-21swapper/00
195088262,2sleep00-21swapper/00
188407261,2sleep00-21swapper/00
158632260,3sleep0160766-21cut0
132062260,3sleep0133848-21kthreadcore0
98362250,3sleep298573-21cat2
94524251,2sleep20-21swapper/22
86692250,3sleep288172-21grep2
83772251,2sleep00-21swapper/00
75210250,2sleep275382-21strings2
486992251,2sleep0488900-21kthreadcore0
472061250,3sleep00-21swapper/00
464953250,2sleep20-21swapper/22
445787250,1sleep00-21swapper/00
428892251,2sleep20-21swapper/22
426368250,1sleep20-21swapper/22
413567250,1sleep00-21swapper/00
401537251,2sleep20-21swapper/22
394183250,1sleep00-21swapper/00
389772251,2sleep20-21swapper/22
380724251,2sleep00-21swapper/00
369266250,3sleep2369078-21/usr/sbin/munin2
357701251,2sleep2357740-21kthreadcore2
355944250,1sleep00-21swapper/00
344977250,3sleep2347021-21cut2
336584250,1sleep20-21swapper/22
312698250,3sleep0313908-21kthreadcore0
310694250,3sleep00-21swapper/00
298398250,2sleep0298431-21apt-get0
286921251,2sleep00-21swapper/00
265561251,1sleep0265594-21apt-get0
252161250,1sleep00-21swapper/00
247103250,3sleep2248249-21kthreadcore2
232483251,2sleep00-21swapper/00
220065250,1sleep20-21swapper/22
207753250,3sleep2207900-21expr2
196262251,1sleep20-21swapper/22
169320251,2sleep00-21swapper/00
169128250,2sleep20-21swapper/22
149441250,1sleep00-21swapper/00
138397250,3sleep2139592-21kthreadcore2
485243240,2sleep2485364-21latency_hist2
452039240,3sleep00-21swapper/00
413497240,3sleep20-21swapper/22
363060240,2sleep00-21swapper/00
338395240,2sleep20-21swapper/22
323704242,1sleep00-21swapper/00
317692240,1sleep20-21swapper/22
300406240,2sleep20-21swapper/22
264394241,1sleep20-21swapper/22
252472240,3sleep20-21swapper/22
239902240,2sleep0240102-21smartctl0
239176240,3sleep00-21swapper/00
233007240,3sleep20-21swapper/22
226377240,3sleep00-21swapper/00
187820240,2sleep0130160-21kworker/0:0+kacpid0
181960240,1sleep2181992-21apt-get2
165453240,2sleep00-21swapper/00
156709240,2sleep2157435-21irqrtprio2
121647240,2sleep20-21swapper/22
466155230,1sleep20-21swapper/22
439718230,1sleep20-21swapper/22
400688230,1sleep00-21swapper/00
400688230,1sleep00-21swapper/00
375702230,1sleep20-21swapper/22
364267230,1sleep20-21swapper/22
316049230,1sleep20-21swapper/22
223745230,1sleep20-21swapper/22
206995230,1sleep00-21swapper/00
194279230,1sleep20-21swapper/22
155802230,1sleep20-21swapper/22
142935230,1sleep00-21swapper/00
136617230,1sleep20-21swapper/22
109790230,1sleep20-21swapper/22
452804220,1sleep20-21swapper/22
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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