You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-11 - 01:12

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #1, slot #2

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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 100 highest latencies:
System rack1slot2s.osadl.org (updated Wed Jun 10, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1676424737,0sleep30-21swapper/306:49:523
1686824233,0sleep10-21swapper/106:51:061
1679423424,0sleep20-21swapper/206:50:152
1679723321,0sleep00-21swapper/006:50:170
171119976,0cyclictest0-21swapper/011:37:280
171119970,0cyclictest14732-21awk12:13:150
35160,0ktimersoftd/30-21swapper/309:17:073
339960,0migration/36165-21sh11:05:123
339960,0migration/36128-21sh10:04:013
339960,0migration/332559-21fschecks_time10:43:183
339960,0migration/331791-21sh09:42:223
29715060,0irq/26-eth0-rx-31638-21ls10:43:053
29715060,0irq/26-eth0-rx-17096-21iostat_ios09:53:193
29715060,0irq/26-eth0-rx-0-21swapper/311:08:273
171119964,0cyclictest31817-21taskset10:02:520
171119960,0cyclictest0-21swapper/010:56:100
35150,0ktimersoftd/30-21swapper/310:34:513
339950,0migration/39857-21if_eth1.208:48:193
339950,0migration/38999-21kthreadcore10:48:213
339950,0migration/38822-21fschecks_time09:28:183
339950,0migration/38309-21kthreadcore11:48:233
339950,0migration/3703-21gltestperf09:23:183
339950,0migration/36463-21latency_hist12:08:053
339950,0migration/34701-21kthreadcore09:03:223
339950,0migration/332244-21munin-node11:43:203
339950,0migration/329650-21sh09:18:223
339950,0migration/329448-21taskset11:59:403
339950,0migration/329383-21taskset08:58:273
339950,0migration/328571-21kthreadcore11:18:223
339950,0migration/325906-21kthreadcore11:38:233
339950,0migration/322563-21runrttasks12:18:093
339950,0migration/320865-21kthreadcore07:43:223
339950,0migration/320423-21kthreadcore07:18:213
339950,0migration/319565-21kthreadcore08:28:233
339950,0migration/317460-21aten_r1power_vo06:53:163
339950,0migration/315816-21munin-node11:53:203
339950,0migration/31508-21kthreadcore12:03:203
29725050,0irq/27-eth0-tx-5527-21open_inodes09:43:252
29725050,0irq/27-eth0-tx-4927-21load10:43:232
29725050,0irq/27-eth0-tx-31520-21munin-node11:23:242
29725050,0irq/27-eth0-tx-23968-21munin-node06:58:210
29715050,0irq/26-eth0-rx-7738-21ssh09:08:113
29715050,0irq/26-eth0-rx-30698-21ssh11:00:523
29715050,0irq/26-eth0-rx-17365-21kthreadcore10:13:213
29715050,0irq/26-eth0-rx-0-21swapper/312:14:453
29715050,0irq/26-eth0-rx-0-21swapper/311:33:213
29715050,0irq/26-eth0-rx-0-21swapper/311:29:233
29715050,0irq/26-eth0-rx-0-21swapper/311:24:283
29715050,0irq/26-eth0-rx-0-21swapper/310:23:153
29715050,0irq/26-eth0-rx-0-21swapper/310:11:023
29715050,0irq/26-eth0-rx-0-21swapper/310:00:083
29715050,0irq/26-eth0-rx-0-21swapper/309:48:233
29715050,0irq/26-eth0-rx-0-21swapper/309:33:053
29715050,0irq/26-eth0-rx-0-21swapper/308:08:203
29715050,0irq/26-eth0-rx-0-21swapper/307:48:223
27150,0ktimersoftd/20-21swapper/210:34:512
249950,0watchdog/22697-21kthreadcore07:28:242
171139954,0cyclictest3514-21snmpd09:00:562
171119955,0cyclictest15370-21diskmemload11:29:450
171119955,0cyclictest0-21swapper/009:39:230
171119950,0cyclictest0-21swapper/012:08:030
171119950,0cyclictest0-21swapper/010:13:450
171119950,0cyclictest0-21swapper/009:44:260
171119950,0cyclictest0-21swapper/009:13:030
171119950,0cyclictest0-21swapper/008:28:170
179950,0migration/14794-21latency_hist07:08:061
179950,0migration/132341-21idleruntime11:23:201
179950,0migration/132175-21munin-node09:03:171
179950,0migration/13108-21kthreadcore10:23:221
179950,0migration/126227-21kthreadcore09:58:191
179950,0migration/124635-21munin-node10:38:181
179950,0migration/114902-21sh09:50:311
179950,0migration/114578-21latency_hist08:28:061
179950,0migration/113434-21munin-node07:38:191
179950,0migration/110824-21kthreadcore11:28:231
149950,0migration/09905-21kthreadcore11:48:240
149950,0migration/05702-21kthreadcore08:18:240
149950,0migration/04489-21kthreadcore10:03:220
149950,0migration/032016-21taskset07:49:220
149950,0migration/01848-21kthreadcore07:53:210
149950,0migration/018463-21kthreadcore09:33:210
149950,0migration/015074-21sh10:11:370
149950,0migration/013776-21sh11:08:530
8215040,0irq/24-0000:00:30370-21idleruntime-cro07:03:062
339940,0migration/38549-21taskset08:46:413
339940,0migration/37373-21kthreadcore07:33:223
339940,0migration/36289-21kthreadcore08:18:243
339940,0migration/331217-21kthreadcore08:13:213
339940,0migration/329534-21kthreadcore08:38:213
339940,0migration/329270-21kthreadcore07:23:223
339940,0migration/319036-21kthreadcore08:53:213
339940,0migration/317629-21kthreadcore11:13:223
29725040,0irq/27-eth0-tx-8020-21ssh10:48:172
29725040,0irq/27-eth0-tx-5857-21ssh11:04:222
29725040,0irq/27-eth0-tx-5440-21ssh11:44:352
29725040,0irq/27-eth0-tx-28853-21ssh12:18:442
29725040,0irq/27-eth0-tx-23813-21ssh10:38:092
29725040,0irq/27-eth0-tx-21956-21ssh08:54:312
29725040,0irq/27-eth0-tx-20760-21ntp_kernel_pll_11:33:232
29725040,0irq/27-eth0-tx-0-21swapper/212:06:582
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional