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2026-03-21 - 15:08
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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 highest latencies:
System rack7slot2.osadl.org (updated Sat Mar 21, 2026 12:44:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2096267999689,4cyclictest2244418-21kworker/u4:11+events_unbound11:36:211
2096267998352,29cyclictest2096262-21cyclictest12:00:091
2096265997943,33cyclictest2264910-21fschecks_count11:45:190
2096265997942,34cyclictest0-21swapper/012:10:160
2096267997871,5cyclictest2262415-21kworker/u4:4+events_unbound11:51:211
2096265997763,10cyclictest53-21kswapd010:15:000
2096265997565,7cyclictest2306636-21kworker/u4:5+events_unbound12:36:270
2096265997446,26cyclictest2243766-21unixbench_singl11:20:410
2096267997339,30cyclictest0-21swapper/110:15:271
2096265997141,27cyclictest2149683-21aten_r7power_en09:35:210
2096267997036,31cyclictest2154632-21sed09:40:231
2096265997034,34cyclictest2291588-21ssh12:15:180
2096265996940,27cyclictest2106900-21aten_r7power_po07:50:230
2096265996934,32cyclictest0-21swapper/010:05:170
2096265996933,33cyclictest0-21swapper/011:25:350
2096265996930,37cyclictest2189040-21cron10:20:000
2096267996844,22cyclictest2106200-21sendmail_mailqu07:45:361
2096265996835,31cyclictest2261469-21unixbench_singl11:40:390
2096265996831,35cyclictest0-21swapper/008:25:390
2096265996830,34cyclictest0-21swapper/009:55:330
2096265996829,31cyclictest2115588-21modprobe08:25:000
2096265996829,31cyclictest2115588-21modprobe08:25:000
2096267996729,35cyclictest2252354-21xargs11:30:361
2096265996754,9cyclictest53-21kswapd009:30:060
2096265996737,28cyclictest2251981-21/usr/sbin/munin11:30:270
2096265996727,37cyclictest2220934-21kernelversion10:55:240
2096265996726,38cyclictest0-21swapper/010:25:430
2096267996637,26cyclictest2224885-21aten_r7power_en11:00:151
2096267996626,37cyclictest2137634-21unixbench_singl09:20:391
2096265996630,32cyclictest0-21swapper/011:55:180
2096265996629,35cyclictest0-21swapper/009:40:280
2096267996537,25cyclictest2144916-21latency_hist09:30:021
2096267996534,28cyclictest0-21swapper/110:55:351
2096267996528,34cyclictest0-21swapper/112:10:321
2096265996536,26cyclictest2127775-21fschecks_count09:10:240
2096265996535,28cyclictest2136755-21gltestperf09:20:200
2096265996535,28cyclictest2105747-21fschecks_time07:45:180
2096265996532,30cyclictest0-21swapper/011:00:280
2096265996530,33cyclictest25650irq/23-42890000.ethernet12:05:390
2096265996511,16cyclictest2163559-21ssh09:50:260
2096267996458,4cyclictest2187191-21kworker/u4:3+events_unbound10:30:161
2096267996456,6cyclictest53-21kswapd010:50:161
2096267996433,29cyclictest2308512-21latency_hist12:35:021
2096267996432,29cyclictest2234073-21gltestperf11:10:211
2096267996432,29cyclictest0-21swapper/108:15:281
2096267996430,31cyclictest2265596-21mailstats11:45:371
2096267996430,31cyclictest0-21swapper/110:20:281
2096267996424,8cyclictest2274551-21sort11:55:391
2096267996420,35cyclictest0-21swapper/108:24:591
2096267996420,35cyclictest0-21swapper/108:24:591
209626599644,23cyclictest2258736-21ssh11:38:190
2096265996427,4cyclictest0-21swapper/011:10:460
2096265996426,4cyclictest0-21swapper/012:00:310
2096267996336,25cyclictest2126187-21df_abs09:05:161
2096267996334,26cyclictest2116251-21kernelversion08:25:221
2096267996328,32cyclictest0-21swapper/109:15:001
2096267996326,4cyclictest0-21swapper/112:15:161
2096265996330,29cyclictest0-21swapper/011:50:270
2096265996328,32cyclictest0-21swapper/011:15:250
2096265996328,32cyclictest0-21swapper/011:15:240
209626599631,26cyclictest2159081-21ntpq09:45:240
2096267996257,3cyclictest2200730-21kworker/u4:4+events_unbound10:36:091
2096267996235,24cyclictest0-21swapper/111:40:281
2096267996232,27cyclictest2163937-21switchtime09:50:371
2096267996229,29cyclictest0-21swapper/111:15:311
2096267996229,29cyclictest0-21swapper/111:15:301
2096267996228,32cyclictest398-21systemd-logind11:06:151
2096267996228,32cyclictest398-21systemd-logind11:06:141
2096267996226,5cyclictest2151909-21kworker/u4:9-xprtiod10:05:241
2096267996226,32cyclictest0-21swapper/112:25:351
2096265996230,29cyclictest0-21swapper/010:35:010
2096265996230,29cyclictest0-21swapper/007:30:000
2096265996229,5cyclictest2304387-21aten_r7power_cu12:30:170
2096265996228,4cyclictest2108441-21gltestperf07:55:200
2096265996228,31cyclictest0-21swapper/011:05:280
2096265996228,31cyclictest0-21swapper/011:05:270
2096265996227,4cyclictest0-21swapper/012:25:000
2096267996132,27cyclictest2172017-21fschecks_count10:00:201
2096267996132,27cyclictest2145508-21fschecks_count09:30:241
2096267996131,27cyclictest0-21swapper/111:25:471
2096267996131,27cyclictest0-21swapper/109:15:341
2096267996128,30cyclictest0-21swapper/110:00:011
2096267996124,4cyclictest0-21swapper/109:45:301
2096265996129,4cyclictest0-21swapper/012:25:410
2096265996127,6cyclictest2110466-21cron08:05:000
2096265996125,7cyclictest0-21swapper/007:10:210
209626599612,17cyclictest2203252-21ntpq10:35:230
2096267996028,29cyclictest0-21swapper/109:35:441
2096267996026,4cyclictest0-21swapper/112:20:331
2096267996026,31cyclictest0-21swapper/110:40:321
2096265996031,26cyclictest0-21swapper/009:15:290
2096265996027,6cyclictest0-21swapper/007:35:130
2096265996027,5cyclictest0-21swapper/008:49:590
2096265996026,7cyclictest0-21swapper/007:15:190
2096265996024,8cyclictest0-21swapper/010:45:270
2096267995929,27cyclictest0-21swapper/110:45:281
2096267995926,4cyclictest0-21swapper/107:40:241
2096267995925,4cyclictest0-21swapper/110:10:241
209626599592,26cyclictest2127093-21apt-get09:10:010
209626799583,18cyclictest2309427-21ssh12:35:281
2096267995828,27cyclictest0-21swapper/111:20:361
2096267995826,29cyclictest0-21swapper/107:20:201
2096267995823,8cyclictest2101832-21df_abs07:30:181
2096265995827,6cyclictest0-21swapper/007:30:260
2096265995814,18cyclictest2124493-21cron09:00:010
2096267995727,4cyclictest2096199-21kworker/u4:5-rpciod07:10:011
2096267995722,7cyclictest0-21swapper/108:05:371
209626599578,5cyclictest171rcu_preempt09:30:020
2096265995726,4cyclictest2190154-21ntpq10:20:300
2096267995647,7cyclictest2123203-21systemd08:50:531
2096267995630,23cyclictest0-21swapper/108:30:351
2096267995628,26cyclictest2106526-21kworker/u4:0-rpciod08:39:591
2096267995627,26cyclictest0-21swapper/112:05:151
2096267995625,4cyclictest0-21swapper/110:25:291
2096267995625,4cyclictest0-21swapper/108:00:381
2096267995623,4cyclictest0-21swapper/108:45:271
2096267995525,27cyclictest0-21swapper/107:10:401
2096267995524,6cyclictest0-21swapper/107:50:211
2096267995520,6cyclictest2107886-21kworker/u4:10+rpciod07:55:171
2096267995423,28cyclictest0-21swapper/108:55:161
2096267995422,5cyclictest0-21swapper/108:10:341
2096265995446,6cyclictest315-21systemd-journal10:01:030
2096267995321,4cyclictest0-21swapper/107:25:191
2096265995142,6cyclictest2092555-21kworker/u4:8+events_unbound07:45:020
2096265995140,8cyclictest2216178-21/usr/sbin/munin10:50:170
2096265995127,21cyclictest2110972-21fschecks_time08:05:180
2096267995039,8cyclictest2103845-21sed07:35:341
2096265994941,6cyclictest2099109-21aten2__07:20:140
2096265994929,17cyclictest2125025-21fschecks_time09:00:180
2096267994840,6cyclictest2098674-21timerwakeupswit07:15:381
2096265994835,7cyclictest2123235-21kworker/u4:608:55:000
2096265994638,6cyclictest2119735-21aten_r7power_vo08:40:170
2096265994636,8cyclictest2113474-21fschecks_count08:15:170
2096265994436,6cyclictest2117098-21aten_r7power_en08:30:140
2096265994335,6cyclictest2096295-21latency_hist07:10:020
2096265994334,5cyclictest2209068-21kworker/u4:5-xprtiod10:42:450
2096267994234,6cyclictest2125816-21idleruntime-cro09:05:001
2096265994235,5cyclictest2112110-21df_abs08:10:160
2096265994234,4cyclictest0-21swapper/008:40:010
2096267994032,6cyclictest2120033-21gltestperf08:40:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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