You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-11 - 08:49

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 #b, slot #7

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.

Note that this system runs a non-RT kernel.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot7s.osadl.org (updated Wed Jun 10, 2026 12:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
284962766313,7636sleep122815-21kworker/1:009:19:231
7225251412,489sleep27233-21ntpq08:13:292
9958247922,438sleep39967-21/usr/sbin/munin08:23:073
27146242812,310sleep127287-21head10:58:201
3266233011,268sleep13269-21acpi11:27:591
14066231111,283sleep114172-21latency_hist12:02:521
3055230810,256sleep13195-21latency_hist11:27:511
4937225483,98sleep10-21swapper/109:48:191
2903422510,6sleep20-21swapper/209:22:592
4142223427,186sleep24286-21cat09:47:512
26322223267,91sleep10-21swapper/107:32:521
15159222417,128sleep10-21swapper/112:03:321
27294222348,112sleep127417-21sed07:33:211
27294222348,112sleep127417-21sed07:33:211
15300221821,177sleep115441-21latency_hist10:22:511
32728221637,107sleep10-21swapper/111:18:061
9833221526,103sleep10-21swapper/110:03:211
9833221526,103sleep10-21swapper/110:03:211
17064221578,89sleep10-21swapper/110:28:041
29025221415,178sleep129026-21/usr/sbin/munin09:22:591
24604219266,108sleep124678-21latency_hist10:52:511
24141219212,110sleep124209-21latency_hist09:07:521
32713218769,26sleep10-21swapper/107:53:001
24742218012,155sleep124718-21latency_hist07:27:521
19721218046,34sleep10-21swapper/108:53:301
11905217319,127sleep30-21swapper/308:28:163
1595021689,147sleep115970-21munin-run08:42:521
8608216654,88sleep10-21swapper/108:18:121
12042215845,18sleep10-21swapper/108:28:181
28475215528,88sleep128520-21grep07:38:141
24132215511,126sleep10-21swapper/112:33:131
23894215517,123sleep323932-21processes07:23:173
18717215314,119sleep10-21swapper/110:33:091
4557215217,121sleep2225-21systemd-journal11:32:492
3029021487,127sleep130419-21awk11:08:211
3029021487,127sleep130419-21awk11:08:211
23475214537,33sleep123491-21modprobe12:32:491
32407214014,28sleep132422-21latency_hist11:17:501
11430214013,29sleep011424-21apt-get08:28:010
672121387,68sleep10-21swapper/108:12:591
5473213657,19sleep15566-21mailstats08:08:191
864721359,109sleep18796-21tail11:43:221
22259213413,97sleep122302-21ntp_kernel_pll_07:18:141
2178621345,33sleep10-21swapper/112:26:021
11282213457,19sleep111281-21ntp_states10:08:141
18814213314,94sleep218858-21/usr/sbin/munin10:33:102
16741213048,21sleep116777-21ntpq08:43:161
19157212920,35sleep119186-21idleruntime-cro08:52:491
26180212722,89sleep126307-21latency_hist10:57:521
26180212722,89sleep126307-21latency_hist10:57:521
2321212755,14sleep10-21swapper/107:58:171
13962212719,90sleep014062-21latency_hist12:02:510
6399212631,73sleep10-21swapper/109:53:201
6399212631,73sleep10-21swapper/109:53:201
14316212630,26sleep10-21swapper/108:37:511
7698212527,83sleep17717-21apt-get09:58:001
7698212527,83sleep17717-21apt-get09:58:001
6422212574,15sleep10-21swapper/111:38:051
20354212316,89sleep10-21swapper/107:13:051
8005212224,73sleep38022-21cut09:58:233
8005212224,73sleep38022-21cut09:58:233
17242212233,77sleep11-21systemd12:12:491
1152321226,105sleep111557-21ps11:53:191
11143212112,89sleep111164-21modprobe08:27:491
30841211923,29sleep10-21swapper/107:47:021
4820211728,18sleep10-21swapper/111:33:001
4820211728,18sleep10-21swapper/111:33:001
2968921167,12sleep00-21swapper/011:08:080
2968921167,12sleep00-21swapper/011:08:080
27591211421,70sleep327607-21fschecks_count09:18:083
20430211431,26sleep120524-21latency_hist12:22:511
1471211425,24sleep11242-21/usr/sbin/munin09:38:091
7694211310,88sleep27191-21apt-get09:57:572
7694211310,88sleep27191-21apt-get09:57:572
1741521125,95sleep00-21swapper/008:45:250
7729211112,84sleep37845-21cut11:42:513
30828210810,79sleep230929-21latency_hist11:12:502
30828210810,79sleep230929-21latency_hist11:12:502
2825321088,14sleep00-21swapper/011:03:120
9343210611,13sleep30-21swapper/311:47:523
4842210632,49sleep24839-21apt-get11:33:012
4842210632,49sleep24839-21apt-get11:33:012
14926210614,72sleep214984-21/usr/sbin/munin12:03:292
1882321056,85sleep10-21swapper/107:08:171
1368821040,11sleep013683-21modprobe10:17:490
17217210318,18sleep10-21swapper/107:03:161
4678210216,68sleep04709-21munin-run08:07:490
27096210218,65sleep327165-21switchtime07:33:193
27096210218,65sleep327165-21switchtime07:33:193
321221017,82sleep13256-21ntpq09:43:141
31157210120,57sleep331199-21fschecks_count11:13:123
3270210013,70sleep33278-21ntpq09:43:163
26525210028,45sleep026519-21apt-get07:33:040
26525210028,45sleep026519-21apt-get07:33:040
21645210013,72sleep221715-21latency_hist07:17:512
38782997,37sleep13912-21ps08:03:181
2659829911,74sleep226647-21idleruntime10:58:092
379529714,61sleep33878-21mailstats11:28:183
1837429720,58sleep318389-21latency_hist10:32:513
163772967,25sleep10-21swapper/110:23:201
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional