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2026-08-09 - 21:37
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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 rack7slot2.osadl.org (updated Sun Aug 09, 2026 12:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2041536998049,28cyclictest2171240-21latency_hist11:00:021
2041536997929,30cyclictest0-21swapper/112:30:011
2041534997537,35cyclictest0-21swapper/011:15:340
2041534997418,50cyclictest0-21swapper/010:35:000
2041534997224,45cyclictest2202323-21ssh11:35:130
2041534997223,8cyclictest2060830-21kworker/u4:6+rpciod08:45:190
2041534997122,47cyclictest2198255-21fschecks_count11:30:210
2041536997039,28cyclictest2126598-21latency_hist10:10:001
2041534997040,27cyclictest0-21swapper/011:40:460
2041536996960,6cyclictest2097589-21kworker/u4:2+events_unbound09:39:481
2041534996932,33cyclictest0-21swapper/012:00:390
204153499685,12cyclictest2091850-21ssh09:30:390
204153499682,19cyclictest2110199-21/usr/sbin/munin09:50:410
2041536996734,29cyclictest0-21swapper/111:25:331
2041536996733,31cyclictest53-21kswapd012:00:211
2041534996756,8cyclictest2049311-21kworker/u4:6+events_unbound07:39:240
2041534996725,40cyclictest2193397-21latency_hist11:25:080
204153499672,22cyclictest2242946-21ssh12:20:360
2041534996715,8cyclictest0-21swapper/009:40:160
2041534996633,30cyclictest2233825-21/usr/sbin/munin12:10:250
204153499663,19cyclictest2229648-21ssh12:05:350
2041534996631,32cyclictest2216542-21mailstats11:50:390
2041534996631,32cyclictest2216542-21mailstats11:50:380
2041534996622,41cyclictest2114105-21ntpq09:55:290
204153499661,27cyclictest2238425-21ssh12:15:330
2041536996536,27cyclictest2145592-21netstat10:30:301
2041536996529,34cyclictest0-21swapper/111:35:311
2041536996514,48cyclictest2099897-21ssh09:40:161
2041534996536,27cyclictest2095605-21df_abs09:35:190
2041534996536,26cyclictest0-21swapper/011:25:320
204153499652,17cyclictest2251465-21awk12:30:250
204153499652,17cyclictest2251465-21awk12:30:240
2041534996520,6cyclictest2086373-21apt-get09:25:130
2041536996432,29cyclictest2128096-21grep10:10:401
2041536996432,29cyclictest2128096-21grep10:10:401
2041536996432,29cyclictest0-21swapper/110:20:441
204153499646,9cyclictest2180259-21/usr/sbin/munin11:10:120
2041534996436,25cyclictest2135702-21sh10:20:020
2041534996425,36cyclictest0-21swapper/010:25:170
2041534996421,6cyclictest0-21swapper/010:10:170
2041534996421,6cyclictest0-21swapper/010:10:170
2041536996334,26cyclictest0-21swapper/111:45:281
2041534996333,27cyclictest2256063-21ntp_offset12:35:350
204153499633,27cyclictest2220641-21ntpq11:55:270
204153499633,23cyclictest2154525-21ntpq10:40:300
2041534996328,32cyclictest2104727-21cut09:45:200
2041534996327,34cyclictest2042065-21gltestperf07:10:220
204153499632,21cyclictest2047617-21ps07:30:440
204153499631,14cyclictest2167721-21ssh10:55:280
204153699624,9cyclictest2238426-21ntp_states12:15:331
2041536996232,27cyclictest2045791-21grep07:25:171
2041536996230,29cyclictest2114601-21unixbench-2d09:55:411
2041536996227,32cyclictest2110213-21vmstat09:50:411
2041534996233,27cyclictest2045331-21kworker/u4:15-rpciod09:00:260
2041534996232,28cyclictest0-21swapper/007:50:160
2041534996231,28cyclictest0-21swapper/012:25:330
2041534996227,32cyclictest2136292-21fschecks_time10:20:200
2041534996224,35cyclictest0-21swapper/007:20:360
204153499622,16cyclictest2162592-21ssh10:50:130
2041536996136,23cyclictest0-21swapper/107:40:381
2041536996136,22cyclictest2064648-21unixbench_multi08:35:391
2041536996130,28cyclictest0-21swapper/112:35:451
2041536996129,30cyclictest2158901-21ntp_kernel_pll_10:45:271
2041534996127,31cyclictest0-21swapper/007:15:370
2041534996124,5cyclictest2122182-21latency_hist10:05:010
204153499612,17cyclictest2150262-21ssh10:35:390
204153699608,7cyclictest0-21swapper/109:25:171
2041536996034,23cyclictest2191515-21kworker/u4:2-xprtiod11:55:281
2041536996033,24cyclictest0-21swapper/111:03:321
2041534996031,26cyclictest0-21swapper/011:00:340
2041534996027,29cyclictest0-21swapper/008:00:020
204153499602,22cyclictest2211748-21ssh11:45:240
2041536995935,21cyclictest2086133-21latency_hist09:25:011
2041536995929,26cyclictest0-21swapper/111:50:321
2041536995929,26cyclictest0-21swapper/111:50:321
2041536995926,29cyclictest0-21swapper/111:40:451
2041536995918,37cyclictest2045473-21sed07:25:021
2041534995929,28cyclictest2073193-21gltestperf09:10:210
2041534995928,28cyclictest0-21swapper/010:45:270
2041534995924,4cyclictest25650irq/23-42890000.ethernet07:25:250
204153499591,17cyclictest2122888-21expr10:05:220
204153499591,13cyclictest2078624-21users09:15:400
204153699584,9cyclictest2153754-21apt-get10:40:121
2041536995846,9cyclictest2072408-21systemd09:09:371
204153699583,9cyclictest2091877-21ps09:30:391
2041536995836,20cyclictest2060874-21cut08:25:001
2041536995831,24cyclictest0-21swapper/109:15:341
2041536995830,25cyclictest0-21swapper/111:15:111
2041536995828,27cyclictest0-21swapper/111:30:351
2041536995827,29cyclictest0-21swapper/112:20:221
2041536995825,31cyclictest2061962-21threads08:25:421
2041536995824,31cyclictest0-21swapper/111:10:331
204153699582,14cyclictest2189822-21ntpq11:20:281
204153499583,13cyclictest2176098-21ssh11:05:180
2041534995824,31cyclictest0-21swapper/008:10:180
2041534995816,6cyclictest0-21swapper/009:20:360
2041536995735,20cyclictest2051071-21fschecks_count07:45:201
2041536995732,22cyclictest0-21swapper/110:50:371
2041536995729,26cyclictest0-21swapper/108:10:211
2041536995727,27cyclictest0-21swapper/109:45:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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