You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-02 - 06:51

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 #c, slot #8

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 rackcslot8s.osadl.org (updated Wed Jul 02, 2025 00:46:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2071326442,6sleep30-21swapper/319:09:543
292222630,0sleep50-21swapper/500:30:205
114091610,30ptp4l0-21swapper/119:07:451
2036225948,6sleep70-21swapper/719:05:267
2120915734,7phc2sys0-21swapper/419:05:454
145602560,0sleep40-21swapper/421:12:254
114091550,1ptp4l0-21swapper/519:10:005
2070125341,7sleep20-21swapper/219:09:452
2063425342,6sleep60-21swapper/619:08:536
2039325139,7sleep00-21swapper/019:05:510
114091310,0ptp4l11750-21diskmemload23:40:166
114091300,0ptp4l0-21swapper/621:34:526
114091300,0ptp4l0-21swapper/223:48:352
114091300,0ptp4l0-21swapper/200:01:092
114091290,0ptp4l0-21swapper/623:19:156
114091290,0ptp4l0-21swapper/223:09:152
114091290,0ptp4l0-21swapper/222:48:212
114091290,0ptp4l0-21swapper/221:54:212
114091290,0ptp4l0-21swapper/221:13:362
114091290,0ptp4l0-21swapper/220:15:002
114091290,0ptp4l0-21swapper/022:43:060
114091280,0ptp4l0-21swapper/622:44:306
114091280,0ptp4l0-21swapper/421:52:014
114091280,0ptp4l0-21swapper/400:05:134
114091280,0ptp4l0-21swapper/023:12:390
114091280,0ptp4l0-21swapper/021:54:060
114091280,0ptp4l0-21swapper/000:23:020
114091280,0ptp4l0-21swapper/000:13:040
114091270,2ptp4l0-21swapper/622:58:236
114091270,0ptp4l121rcu_preempt21:31:572
114091270,0ptp4l0-21swapper/623:56:356
114091270,0ptp4l0-21swapper/623:50:076
114091270,0ptp4l0-21swapper/623:22:096
114091270,0ptp4l0-21swapper/620:30:176
114091270,0ptp4l0-21swapper/421:16:414
114091270,0ptp4l0-21swapper/223:40:092
114091270,0ptp4l0-21swapper/223:39:432
114091270,0ptp4l0-21swapper/223:24:442
114091270,0ptp4l0-21swapper/223:10:122
114091270,0ptp4l0-21swapper/222:10:232
114091270,0ptp4l0-21swapper/200:34:512
114091270,0ptp4l0-21swapper/022:35:060
114091260,0ptp4l0-21swapper/623:13:096
114091260,0ptp4l0-21swapper/622:03:016
114091260,0ptp4l0-21swapper/621:35:196
114091260,0ptp4l0-21swapper/422:05:324
114091260,0ptp4l0-21swapper/223:27:592
114091260,0ptp4l0-21swapper/222:54:392
114091260,0ptp4l0-21swapper/222:34:532
114091260,0ptp4l0-21swapper/200:13:342
114091260,0ptp4l0-21swapper/100:09:301
114091260,0ptp4l0-21swapper/021:29:020
114091250,2ptp4l0-21swapper/023:25:590
114091250,1ptp4l2575-21munin-run20:50:006
114091250,1ptp4l10769-21diskstats00:05:140
114091250,0ptp4l11750-21diskmemload21:33:427
114091250,0ptp4l0-21swapper/622:53:496
114091250,0ptp4l0-21swapper/619:50:136
114091250,0ptp4l0-21swapper/423:38:454
114091250,0ptp4l0-21swapper/223:50:242
114091250,0ptp4l0-21swapper/223:17:162
114091250,0ptp4l0-21swapper/221:39:552
114091250,0ptp4l0-21swapper/221:16:222
114091250,0ptp4l0-21swapper/200:28:312
114091250,0ptp4l0-21swapper/200:15:122
114091250,0ptp4l0-21swapper/200:15:122
114091250,0ptp4l0-21swapper/023:10:010
114091240,2ptp4l0-21swapper/221:43:422
114091240,2ptp4l0-21swapper/221:43:422
114091240,1ptp4l6580-21ssh00:00:000
114091240,1ptp4l65-21ksoftirqd/622:35:146
114091240,1ptp4l29927-21users23:45:241
114091240,1ptp4l24366-21fw_conntrack19:15:124
114091240,1ptp4l22506-21sed23:35:246
114091240,1ptp4l18537-21smart_sda23:30:236
114091240,1ptp4l14124-21df_inode23:25:165
114091240,1ptp4l13540-21sed20:00:226
114091240,1ptp4l11750-21diskmemload22:22:056
114091240,1ptp4l11422-21chrt21:05:582
114091240,0ptp4l0-21swapper/623:00:186
114091240,0ptp4l0-21swapper/620:25:186
114091240,0ptp4l0-21swapper/619:40:226
114091240,0ptp4l0-21swapper/619:35:166
114091240,0ptp4l0-21swapper/619:20:196
114091240,0ptp4l0-21swapper/600:35:156
114091240,0ptp4l0-21swapper/600:33:306
114091240,0ptp4l0-21swapper/600:25:176
114091240,0ptp4l0-21swapper/600:21:486
114091240,0ptp4l0-21swapper/600:10:256
114091240,0ptp4l0-21swapper/520:55:205
114091240,0ptp4l0-21swapper/421:37:204
114091240,0ptp4l0-21swapper/400:00:004
114091240,0ptp4l0-21swapper/222:55:132
114091240,0ptp4l0-21swapper/222:25:392
114091240,0ptp4l0-21swapper/222:09:412
114091240,0ptp4l0-21swapper/220:00:012
114091240,0ptp4l0-21swapper/100:38:531
114091240,0ptp4l0-21swapper/100:00:401
114091240,0ptp4l0-21swapper/023:36:420
114091240,0ptp4l0-21swapper/023:34:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional