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 #3

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 50 highest latencies:

System rackcslot3s.osadl.org (updated Sun May 31, 2026 00:43:56)
Delayed (victim)					Switcher (culprit)			Timestamp	CPU
PID	Prio	Total latency (µs)	T^(,W^*) latency (µs)	Cmd	PID	Prio	Cmd	Timestamp	CPU
25486	2	326	320,4	sleep3	0	-21	swapper/3	19:06:18	3
25724	2	325	318,5	sleep1	0	-21	swapper/1	19:09:21	1
25448	2	315	307,5	sleep0	0	-21	swapper/0	19:05:48	0
23936	2	315	308,4	sleep2	0	-21	swapper/2	19:05:06	2
26157	99	302	0,301	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	23:40:34	0
26158	99	300	0,299	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	00:20:11	1
26166	99	298	0,297	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	20:35:13	3
26162	99	298	0,297	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	19:55:12	2
26162	99	297	0,296	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	22:15:13	2
26158	99	297	0,296	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	23:25:32	1
26157	99	295	0,294	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	19:45:13	0
26162	99	293	0,292	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	22:35:13	2
26157	99	291	0,289	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	23:15:13	0
26166	99	290	0,289	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	22:10:18	3
26158	99	290	0,287	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	23:30:11	1
26166	99	287	0,286	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	20:55:13	3
26166	99	287	0,286	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	23:10:12	3
26162	99	287	0,286	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	23:10:12	2
26158	99	287	0,286	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	23:00:13	1
26158	99	287	0,286	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	22:30:12	1
26158	99	285	0,284	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	22:20:13	1
26158	99	283	0,281	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	22:55:13	1
26157	99	283	0,282	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	19:40:12	0
26158	99	279	0,278	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	23:35:14	1
26158	99	279	0,278	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	20:25:14	1
26157	99	276	0,275	cyclictest	11552	-21	kworker/u16:2+efi_rts_wq	19:15:01	0
26162	99	274	0,273	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	20:20:12	2
26158	99	274	0,273	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	00:15:13	1
26158	99	274	0,273	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	19:20:11	1
26158	99	274	0,273	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	19:10:11	1
26158	99	273	0,272	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	22:25:13	1
26166	99	272	0,271	cyclictest	11552	-21	kworker/u16:2+efi_rts_wq	19:15:11	3
26166	99	271	0,269	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	22:35:22	3
26166	99	270	0,268	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	23:45:14	3
26158	99	270	0,269	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	21:00:07	1
26166	99	269	0,268	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	00:25:12	3
26162	99	269	0,268	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	00:10:40	2
26157	99	269	0,268	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	22:00:17	0
26166	99	268	0,267	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	21:25:14	3
26157	99	268	0,267	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	20:50:05	0
26157	99	267	0,266	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	00:10:12	0
26158	99	265	0,264	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	00:05:13	1
26158	99	264	0,263	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	20:35:14	1
26166	99	263	0,262	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	00:05:40	3
26157	99	263	0,262	cyclictest	32466	-21	kworker/u16:3+efi_rts_wq	20:05:14	0
26157	99	263	0,262	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	20:40:02	0
26157	99	263	0,262	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	19:14:47	0
26157	99	262	0,260	cyclictest	25689	-21	kworker/u16:0+efi_rts_wq	00:00:11	0
26158	99	261	0,260	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	23:10:11	1
26157	99	261	0,260	cyclictest	30526	-21	kworker/u16:2+efi_rts_wq	23:25:13	0
^Timer ^*Wakeup (latency=timer+wakeup+contextswitch)


Access: public		Short link to this page
This page was last modified on 2019-05-28 - 00:17