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2024-09-11 - 15:21

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

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: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackfslot4s.osadl.org (updated Wed Sep 11, 2024 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2536421310,2sleep025362-21ls23:36:070
281521240,2chrt2797-21ntpq21:57:260
2853621160,2chrt28528-21ntp_states23:41:530
2575921100,2chrt25761-21cpu21:41:030
2515921100,2chrt25161-21sort21:40:190
2167421100,3chrt21673-21ssh00:27:270
1436221100,3chrt14363-21sleep00:15:280
690521060,3chrt6906-21sh20:04:330
1156121050,3chrt11562-21sh00:10:220
2726121040,1sleep027260-21sed22:41:080
906621030,2chrt9067-21ssh00:05:360
336821030,2chrt3365-21ps19:56:230
3109021030,2chrt31092-21awk21:50:400
2209221000,2chrt22093-21sh20:33:230
2069321000,2chrt20694-21sh23:27:360
281592840,3chrt27968-21apt-get20:45:590
160062820,2sleep016004-21ls23:20:110
178942750,4sleep017892-21ssh23:22:290
252252700,2sleep025223-21timerandwakeup22:37:170
71152670,2sleep07116-21hostname22:05:330
131892640,2sleep013191-21sort23:15:040
74912630,2sleep07492-21df20:05:280
64302630,1sleep06431-21ld23:02:100
278742630,2sleep027876-21grep19:40:030
50722610,1sleep05073-21sh23:58:150
321962593,10sleep032193-21df22:50:380
179212590,2sleep018026-21irqrtprio00:21:100
9922573,7sleep01023-21perl20:55:340
236692573,7sleep023671-21sshd00:31:130
140402570,2sleep014041-21awk21:20:280
128332573,7sleep012834-21users21:17:250
79292563,7sleep07930-21ssh00:03:130
171782557,37sleep00-21swapper19:09:000
214542530,2sleep021455-21sh21:32:430
166532534,7sleep016644-21ntpq22:22:080
234262513,11sleep08049-21diskmemload23:32:290
49202503,8sleep05043-21irqstats22:01:070
41762495,36sleep04172-21ntpq21:01:010
17499904818,23cyclictest0-21swapper22:48:300
17499904817,22cyclictest0-21swapper22:59:080
17499904718,23cyclictest0-21swapper21:49:100
17499904718,22cyclictest0-21swapper22:19:240
9842463,36sleep0954-21ntp_states19:52:120
17499904618,20cyclictest0-21swapper23:08:190
17499904615,24cyclictest0-21swapper22:34:200
17499904615,23cyclictest0-21swapper00:39:230
110392463,36sleep011035-21ssh22:11:580
17499904514,23cyclictest0-21swapper21:13:320
17499904511,8cyclictest0-21swapper20:25:050
1749990447,10cyclictest23788-21ntp_states20:36:090
17499904417,21cyclictest0-21swapper20:43:190
1749990436,29cyclictest17170-21df_inode21:25:450
17499904316,11cyclictest20468-21sleep19:15:300
17499904312,25cyclictest14658-21munin-run20:20:010
1749990426,19cyclictest29390-21/usr/sbin/munin19:46:500
314892410,2sleep031490-21run-parts23:47:090
1749990415,19cyclictest18655-21ntpq19:10:580
1749990414,18cyclictest10871-21ntpq20:11:120
17499904116,10cyclictest26421-21runrttasks19:34:500
17499904018,14cyclictest0-21swapper23:50:060
17499904017,17cyclictest25446-21snmpd22:28:360
17499904017,15cyclictest5657-21/usr/sbin/munin21:05:400
1749990397,12cyclictest410-21apt20:55:010
1749990395,16cyclictest14813-21apt20:20:110
17499903712,17cyclictest0-21swapper19:26:030
17499903711,18cyclictest27825-21sendmail-msp19:40:210
17499903514,14cyclictest252-21jbd2/sda-819:20:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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