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2026-07-28 - 19:53

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #e, slot #6

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 792 highest latencies:
System rackeslot6s.osadl.org (updated Tue Jul 28, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1899788991219,6cyclictest1942877-21apt-get11:20:030
1899788991062,10cyclictest1903505-21apt-get07:30:010
189978899842,73cyclictest1918903-21grep08:55:290
189979199787,54cyclictest0-21swapper/111:20:021
189978899783,2cyclictest0-21swapper/011:50:020
189978899783,2cyclictest0-21swapper/011:50:010
189979199773,51cyclictest0-21swapper/107:30:011
189978899779,50cyclictest1900795-21df_inode07:15:020
1899788997423,46cyclictest1919773-21sed09:00:300
1899788997144,23cyclictest20650irq/252-8000000.ethernet07:15:010
1899788997034,32cyclictest1952554-21latency_hist12:15:010
1899788997034,32cyclictest1952554-21latency_hist12:15:010
1899792996949,17cyclictest0-21swapper/207:30:012
1899788996949,16cyclictest20650irq/252-8000000.ethernet10:40:290
1899788996942,23cyclictest0-21swapper/012:35:300
1899788996843,21cyclictest20650irq/252-8000000.ethernet07:50:260
1899788996840,25cyclictest20650irq/252-8000000.ethernet08:50:010
1899788996840,24cyclictest20650irq/252-8000000.ethernet08:50:170
1899788996824,36cyclictest0-21swapper/010:50:200
1899788996752,11cyclictest20650irq/252-8000000.ethernet10:00:300
1899788996752,11cyclictest20650irq/252-8000000.ethernet10:00:300
189978899673,4cyclictest1915621-21sed08:40:010
1899788996539,22cyclictest20650irq/252-8000000.ethernet09:30:210
1899788996440,20cyclictest20650irq/252-8000000.ethernet09:40:200
1899788996440,20cyclictest0-21swapper/012:15:210
1899788996344,16cyclictest1914663-21munin-plugin-st08:35:000
1899788996341,19cyclictest20650irq/252-8000000.ethernet09:35:230
1899788996248,10cyclictest20650irq/252-8000000.ethernet11:05:000
1899788996239,19cyclictest20650irq/252-8000000.ethernet07:30:280
1899788996237,17cyclictest20650irq/252-8000000.ethernet08:05:150
1899788996236,22cyclictest1908354-21cat07:55:230
1899788996226,32cyclictest1953620-21tune2fs12:20:190
1899788996222,37cyclictest1937303-21/usr/sbin/munin10:45:210
1899788996217,4cyclictest0-21swapper/010:35:020
189979299616,50cyclictest0-21swapper/207:15:022
1899788996122,35cyclictest0-21swapper/010:25:270
1899788996122,35cyclictest0-21swapper/009:15:270
1899788996120,38cyclictest1951195-21/usr/sbin/munin12:05:260
1899788996037,19cyclictest20650irq/252-8000000.ethernet10:55:260
1899788996036,20cyclictest1946986-21ptp4l-jitter11:40:270
1899788996036,20cyclictest1946986-21ptp4l-jitter11:40:270
1899788996036,19cyclictest20650irq/252-8000000.ethernet09:05:140
1899788996036,19cyclictest20650irq/252-8000000.ethernet09:05:140
1899788996036,19cyclictest1911291-21latency_hist08:15:000
1899788996033,22cyclictest1660-21snmpd12:00:230
1899788996013,7cyclictest0-21swapper/009:25:290
1899791995930,16cyclictest0-21swapper/109:00:161
189978899594,8cyclictest1930838-21grep10:05:310
1899788995937,17cyclictest20650irq/252-8000000.ethernet11:10:160
1899788995935,20cyclictest1946201-21mailstats11:35:300
1899788995933,23cyclictest0-21swapper/007:10:000
189978899592,14cyclictest1902029-21apt-get07:20:160
189978899592,14cyclictest1902029-21apt-get07:20:160
189979299586,16cyclictest0-21swapper/211:20:022
1899792995837,16cyclictest0-21swapper/212:05:162
1899792995811,15cyclictest0-21swapper/210:55:182
1899788995829,26cyclictest20850irq/208-8000000.ethernet07:40:160
1899788995823,31cyclictest1931613-21grep10:10:280
1899791995745,8cyclictest1922651-21munin-node09:20:111
1899791995745,8cyclictest1922651-21munin-node09:20:111
1899791995737,12cyclictest1949177-21apt-get11:55:161
1899788995718,6cyclictest1494101-1kworker/0:2H+mmc_complete10:00:010
1899792995633,13cyclictest0-21swapper/209:00:142
1899791995638,11cyclictest0-21swapper/108:20:111
1899791995635,13cyclictest1951924-21/usr/sbin/munin12:10:241
1899791995635,13cyclictest1951924-21/usr/sbin/munin12:10:231
1899791995634,12cyclictest1926544-21/usr/sbin/munin09:40:281
1899791995629,14cyclictest1905920-21/usr/sbin/munin07:40:261
1899791995627,24cyclictest1660-21snmpd10:14:381
1899788995626,26cyclictest0-21swapper/011:55:280
1899788995621,32cyclictest20850irq/208-8000000.ethernet08:25:160
1899788995616,36cyclictest0-21swapper/012:30:300
189978899561,5cyclictest1911745-21irqstats08:15:250
189978899561,5cyclictest1911745-21irqstats08:15:250
1899792995536,12cyclictest0-21swapper/211:30:122
1899792995536,12cyclictest0-21swapper/211:30:112
1899792995530,13cyclictest0-21swapper/210:20:122
1899792995529,14cyclictest0-21swapper/210:45:112
189979199553,17cyclictest1920662-21apt-get09:10:011
189979199553,17cyclictest1920662-21apt-get09:10:011
1899788995541,11cyclictest20650irq/252-8000000.ethernet11:05:170
1899788995541,11cyclictest20650irq/252-8000000.ethernet11:05:170
1899788995540,11cyclictest20650irq/252-8000000.ethernet11:50:270
1899788995539,12cyclictest20650irq/252-8000000.ethernet11:30:240
1899788995539,12cyclictest20650irq/252-8000000.ethernet11:30:240
1899788995530,22cyclictest0-21swapper/011:25:250
1899788995529,23cyclictest1923208-21grep09:20:290
1899788995529,23cyclictest1923208-21grep09:20:290
1899788995525,26cyclictest1909601-21cron08:05:000
1899788995523,29cyclictest20850irq/208-8000000.ethernet09:45:180
1899788995523,29cyclictest1943241-21df11:20:150
1899788995523,29cyclictest0-21swapper/012:25:300
189979299544,27cyclictest0-21swapper/208:40:012
1899792995431,14cyclictest1928859-21/usr/sbin/munin09:55:252
1899792995431,12cyclictest0-21swapper/209:25:132
189979199547,13cyclictest1936248-21/usr/sbin/munin10:40:191
1899791995438,12cyclictest1939627-21apt-get11:00:151
1899791995430,12cyclictest0-21swapper/107:55:131
189978899542,49cyclictest1927772-21df_inode09:50:180
189978899541,3cyclictest1916033-21open_inodes08:40:270
189978899541,3cyclictest0-21swapper/010:15:250
189978899541,11cyclictest1933372-21unixbench_singl10:20:280
1899792995330,13cyclictest0-21swapper/209:05:142
1899792995330,13cyclictest0-21swapper/209:05:142
1899792995328,13cyclictest0-21swapper/211:10:122
1899792995328,13cyclictest0-21swapper/208:05:112
189978899535,11cyclictest0-21swapper/007:35:210
1899788995311,5cyclictest0-21swapper/008:20:220
1899792995235,11cyclictest0-21swapper/211:35:142
1899792995229,13cyclictest1921303-21/usr/sbin/munin09:10:282
1899791995239,9cyclictest1283-21cron09:30:001
1899791995236,9cyclictest1930246-21apt-get10:05:171
1899791995236,10cyclictest1913184-21apt-get08:25:161
1899791995232,9cyclictest0-21swapper/107:20:111
1899791995232,9cyclictest0-21swapper/107:20:111
1899788995226,21cyclictest1921540-21unixbench_singl09:10:300
1899788995224,26cyclictest20850irq/208-8000000.ethernet10:35:180
1899792995140,7cyclictest1954429-21/usr/sbin/munin12:25:192
1899792995133,12cyclictest1923135-21/usr/sbin/munin09:20:282
1899792995133,12cyclictest1923135-21/usr/sbin/munin09:20:282
1899792995128,11cyclictest0-21swapper/209:40:112
1899791995139,7cyclictest1945700-21munin-node11:35:121
1899791995133,12cyclictest0-21swapper/109:55:111
1899792995039,8cyclictest1903924-21/usr/sbin/munin07:30:202
1899792995036,9cyclictest0-21swapper/210:15:002
1899792995036,6cyclictest1934763-21/usr/sbin/munin10:30:252
1899792995030,9cyclictest0-21swapper/212:10:122
1899792995030,9cyclictest0-21swapper/212:10:122
1899791995042,5cyclictest1937927-21/usr/sbin/munin10:50:201
1899791995039,6cyclictest1956031-21apt-get12:35:121
1899791995031,12cyclictest1944092-21/usr/sbin/munin11:25:191
1899791995029,14cyclictest1906423-21munin-node07:45:101
1899791995028,11cyclictest0-21swapper/112:00:111
1899792994942,3cyclictest1937930-21apt-get10:50:132
1899792994933,10cyclictest1950037-21apt-get12:00:152
1899792994930,13cyclictest0-21swapper/207:55:122
1899792994928,13cyclictest1925422-21/usr/sbin/munin09:35:242
1899792994928,12cyclictest1902433-21/usr/sbin/munin07:20:272
1899792994928,12cyclictest1902433-21/usr/sbin/munin07:20:262
1899792994927,12cyclictest1907773-21/usr/sbin/munin07:50:282
1899792994926,13cyclictest1936452-21/usr/sbin/munin10:40:222
1899791994943,3cyclictest1905286-21sendmail07:40:001
1899791994940,5cyclictest1910647-21apt-get08:10:161
1899791994939,7cyclictest1955585-21/usr/sbin/munin12:30:271
1899791994937,9cyclictest1931923-21apt-get10:15:131
1899791994935,9cyclictest1933627-21apt-get10:25:151
1899791994935,10cyclictest1915508-21run-parts08:40:001
1899791994932,11cyclictest1953939-21/usr/sbin/munin12:20:271
1899791994930,12cyclictest1939040-21/usr/sbin/munin10:55:231
1899791994929,13cyclictest1922093-21/usr/sbin/munin09:15:241
1899792994835,8cyclictest1943180-21/usr/sbin/munin11:20:282
1899792994829,11cyclictest1956436-21/usr/sbin/munin12:35:282
1899792994828,13cyclictest1917722-21/usr/sbin/munin08:50:222
1899792994827,9cyclictest0-21swapper/209:50:142
1899791994834,7cyclictest1951175-21meminfo12:05:241
1899791994833,9cyclictest0-21swapper/107:10:131
1899791994832,10cyclictest0-21swapper/111:10:131
1899791994831,10cyclictest1920950-21munin-node09:10:121
1899791994828,13cyclictest1918097-21/usr/sbin/munin08:50:291
1899791994827,17cyclictest1930024-21kworker/u8:1+flush-179:9611:45:051
1899791994827,17cyclictest1930024-21kworker/u8:1+flush-179:9611:45:051
1899791994827,14cyclictest1909043-21/usr/sbin/munin08:00:191
1899792994733,8cyclictest1911929-21/usr/sbin/munin08:15:292
1899792994733,8cyclictest1911929-21/usr/sbin/munin08:15:292
1899792994731,9cyclictest0-21swapper/208:20:132
1899792994730,9cyclictest1939827-21/usr/sbin/munin11:00:212
1899792994730,11cyclictest1905840-21/usr/sbin/munin07:40:222
1899792994730,10cyclictest0-21swapper/209:45:282
1899792994728,14cyclictest0-21swapper/209:30:112
1899792994728,14cyclictest0-21swapper/208:00:122
1899792994728,13cyclictest1940820-21/usr/sbin/munin11:05:272
1899792994728,13cyclictest1940820-21/usr/sbin/munin11:05:272
1899792994727,13cyclictest1922273-21/usr/sbin/munin09:15:272
1899791994731,8cyclictest1928061-21/usr/sbin/munin09:50:261
1899791994731,10cyclictest1933200-21ptp4l10:20:271
1899791994731,10cyclictest1926950-21/usr/sbin/munin09:45:191
1899791994728,13cyclictest1925607-21/usr/sbin/munin09:35:291
1899791994728,12cyclictest1934689-21/usr/sbin/munin10:30:231
1899791994727,13cyclictest1946876-21/usr/sbin/munin11:40:261
1899791994727,13cyclictest1946876-21/usr/sbin/munin11:40:251
1899792994637,3cyclictest1947895-21/usr/sbin/munin11:45:272
1899792994637,3cyclictest1947895-21/usr/sbin/munin11:45:272
1899792994633,7cyclictest1948584-21/usr/sbin/munin11:50:222
1899792994633,7cyclictest1911080-21/usr/sbin/munin08:10:282
1899792994632,8cyclictest1906626-21/usr/sbin/munin07:45:212
1899792994630,9cyclictest1918762-21/usr/sbin/munin08:55:272
1899792994627,13cyclictest1954064-21/usr/sbin/munin12:20:282
1899792994627,12cyclictest1955393-21/usr/sbin/munin12:30:232
1899791994637,5cyclictest1952715-21diskstats12:15:191
1899791994631,8cyclictest1916617-21/usr/sbin/munin08:45:181
1899791994630,11cyclictest0-21swapper/107:30:121
1899791994629,11cyclictest1929886-21/usr/sbin/munin10:00:291
1899791994629,11cyclictest1929886-21/usr/sbin/munin10:00:291
1899791994628,11cyclictest1914341-21/usr/sbin/munin08:30:261
1899788994618,23cyclictest0-21swapper/007:45:170
1899792994532,9cyclictest1933624-21/usr/sbin/munin10:25:102
1899792994530,12cyclictest1944019-21munin-node11:25:122
1899792994529,10cyclictest1929402-21/usr/sbin/munin10:00:122
1899792994529,10cyclictest1929402-21/usr/sbin/munin10:00:122
1899792994528,12cyclictest0-21swapper/208:30:122
1899792994526,15cyclictest1915718-21munin-node08:40:122
1899792994522,15cyclictest1900289-21phc2sys07:10:252
1899791994535,7cyclictest1943183-21apt-get11:20:141
1899791994530,9cyclictest1954479-21/usr/sbin/munin12:25:201
1899791994527,12cyclictest1948399-21/usr/sbin/munin11:50:181
1899791994521,17cyclictest1907366-21cut07:50:201
1899791994514,25cyclictest0-21swapper/111:31:511
1899791994514,25cyclictest0-21swapper/111:31:511
1899792994436,5cyclictest1946631-21diskstats11:40:182
1899792994436,5cyclictest1946631-21diskstats11:40:182
1899792994432,7cyclictest1949794-21sshd11:56:522
1899792994429,9cyclictest1931974-21/usr/sbin/munin10:15:162
1899792994414,3cyclictest1936036-21munin-run10:40:002
1899791994438,3cyclictest1909859-21/usr/sbin/munin08:05:161
1899791994432,6cyclictest1935640-21/usr/sbin/munin10:35:231
1899791994430,8cyclictest1924460-21/usr/sbin/munin09:30:191
1899791994429,9cyclictest1937157-21/usr/sbin/munin10:45:171
1899791994429,11cyclictest0-21swapper/108:15:161
1899791994429,11cyclictest0-21swapper/108:15:161
1899792994334,6cyclictest1952354-21apt-get12:15:042
1899792994327,12cyclictest1916557-21munin-node08:45:122
1899792994326,12cyclictest1904641-21/usr/sbin/munin07:35:162
1899791994335,4cyclictest1940607-21ssh11:05:221
1899791994335,4cyclictest1940607-21ssh11:05:211
1899791994320,14cyclictest1915825-21/usr/sbin/munin08:40:211
1899792994225,8cyclictest0-21swapper/208:25:132
1899791994236,3cyclictest1918398-21/usr/sbin/munin08:55:191
1899792994132,5cyclictest1930317-21/usr/sbin/munin10:05:212
1899791994135,3cyclictest1901296-21/usr/sbin/munin07:15:221
1899792993620,13cyclictest1899840-21latency_hist07:10:012
1899791993524,7cyclictest1899872-21latency_hist07:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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