You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-05-09 - 05:55
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 376 highest latencies:
System rack0slot8.osadl.org (updated Thu May 08, 2025 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
189334399630,62cyclictest1896085-21meminfo07:15:022
1893345996224,25cyclictest11828-21thunderbird08:32:313
1893341995840,16cyclictest3940150-21vncviewer12:18:0214
1893343995552,1cyclictest0-21swapper/1010:14:082
1893346995439,13cyclictest3828764-21AppRun12:26:544
1893343995452,1cyclictest0-21swapper/1012:33:302
1893334995250,2cyclictest0-21swapper/209:33:068
189333399500,39cyclictest0-21swapper/110:14:081
1893334994943,3cyclictest0-21swapper/212:18:028
1893348994539,4cyclictest11828-21thunderbird07:43:375
1893343994539,1cyclictest0-21swapper/1009:27:092
1893334994442,1cyclictest0-21swapper/209:27:098
1893343994341,1cyclictest0-21swapper/1009:40:322
1893343994340,1cyclictest0-21swapper/1012:18:022
189333399430,42cyclictest0-21swapper/109:28:251
189333399420,40cyclictest0-21swapper/110:04:351
1893343994137,2cyclictest0-21swapper/1012:22:132
189333399410,32cyclictest0-21swapper/112:22:131
1893334993937,1cyclictest0-21swapper/210:14:128
189333399390,37cyclictest0-21swapper/110:15:461
1893343993833,3cyclictest1271ktimers/1009:31:182
189333599384,32cyclictest0-21swapper/309:40:329
1893351993736,0cyclictest0-21swapper/1509:09:007
189333599372,2cyclictest7825-21Xorg10:15:469
1893335993625,8cyclictest0-21swapper/312:22:159
1893350993533,1cyclictest0-21swapper/1412:17:336
1893350993533,1cyclictest0-21swapper/1409:40:316
1893350993533,1cyclictest0-21swapper/1409:28:246
1893346993527,5cyclictest0-21swapper/1210:14:184
1893341993531,2cyclictest9508-21xdg-desktop-por09:23:5014
1893341993531,2cyclictest9508-21xdg-desktop-por09:23:5014
1893334993533,1cyclictest0-21swapper/209:40:278
189334699346,19cyclictest94385alsa-sink-USB15:05:234
1893343993422,9cyclictest128-21ksoftirqd/1010:15:462
189334199344,28cyclictest11828-21thunderbird07:19:4214
1893341993429,4cyclictest11828-21thunderbird07:58:4614
189334099340,33cyclictest3829503-21AppRun08:32:2913
189333799340,23cyclictest0-21swapper/409:05:2810
189333399340,32cyclictest0-21swapper/109:31:191
189335199330,14cyclictest0-21swapper/1508:35:497
1893350993329,1cyclictest0-21swapper/1410:14:116
1893341993328,3cyclictest9508-21xdg-desktop-por08:36:2614
189333899330,2cyclictest11828-21thunderbird08:28:2611
189333599337,25cyclictest0-21swapper/309:27:269
1893333993327,6cyclictest3000145-21Timer11:56:181
189333399330,32cyclictest0-21swapper/109:10:041
189333399330,32cyclictest0-21swapper/109:10:041
1893350993230,1cyclictest0-21swapper/1410:38:016
1893341993228,3cyclictest1990307-21WRScene~der#43108:29:1414
1893341993227,3cyclictest9508-21xdg-desktop-por11:37:4214
1893341993227,3cyclictest11828-21thunderbird08:09:3814
189334099320,31cyclictest3829504-21AppRun09:31:1813
189333799329,7cyclictest0-21swapper/409:40:3210
189333799328,0cyclictest0-21swapper/410:00:2310
189333599327,25cyclictest0-21swapper/310:44:189
1893334993228,2cyclictest0-21swapper/209:38:278
189333399320,31cyclictest0-21swapper/109:40:231
1893332993227,2cyclictest1987838-21chrt12:18:110
1893351993128,2cyclictest0-21swapper/1508:34:317
1893350993129,0cyclictest0-21swapper/1409:30:216
189335099310,30cyclictest0-21swapper/1410:55:186
189334899318,1cyclictest0-21swapper/1309:05:015
1893341993125,5cyclictest12295-21Renderer07:24:0614
1893341993124,4cyclictest11828-21thunderbird08:13:2414
1893340993129,2cyclictest3828764-21AppRun10:05:4713
189334099310,31cyclictest3828781-21AppRun09:29:1713
189333999310,30cyclictest0-21swapper/607:51:5412
189333899318,21cyclictest761ktimers/510:14:1811
189333899310,1cyclictest0-21swapper/508:32:3011
1893334993129,2cyclictest0-21swapper/212:14:348
189333399311,27cyclictest0-21swapper/112:18:081
189334899306,1cyclictest0-21swapper/1308:46:015
1893345993029,1cyclictest0-21swapper/1112:01:253
189334599300,0cyclictest0-21swapper/1112:29:473
1893342993028,1cyclictest3828764-21AppRun12:01:2515
1893341993027,1cyclictest11828-21thunderbird07:32:2214
1893341993025,3cyclictest9508-21xdg-desktop-por11:07:1814
189333899300,0cyclictest0-21swapper/509:29:1611
189333899300,0cyclictest0-21swapper/507:57:5811
1893335993030,0cyclictest0-21swapper/308:28:319
189333599300,16cyclictest7825-21Xorg12:33:309
1893333993029,1cyclictest3828781-21AppRun08:08:091
1893333993025,4cyclictest1931-21snmpd12:04:361
189333399301,23cyclictest0-21swapper/112:38:131
189333399300,1cyclictest0-21swapper/108:14:131
1893351992928,0cyclictest0-21swapper/1507:56:267
1893351992926,1cyclictest0-21swapper/1509:03:207
1893350992928,0cyclictest0-21swapper/1407:39:216
1893350992928,0cyclictest0-21swapper/1407:17:546
1893350992927,1cyclictest0-21swapper/1409:20:126
1893350992927,1cyclictest0-21swapper/1409:20:126
1893350992927,1cyclictest0-21swapper/1408:24:206
1893350992927,1cyclictest0-21swapper/1408:01:486
1893350992926,2cyclictest0-21swapper/1412:08:246
1893346992920,3cyclictest1910591-21cupsd09:30:404
1893343992929,0cyclictest0-21swapper/1007:47:512
189334299290,27cyclictest0-21swapper/909:20:3715
189334299290,27cyclictest0-21swapper/909:20:3715
1893341992926,1cyclictest9508-21xdg-desktop-por09:17:0214
1893341992926,1cyclictest9508-21xdg-desktop-por09:17:0214
1893341992925,3cyclictest11828-21thunderbird07:47:4114
1893341992924,3cyclictest9508-21xdg-desktop-por12:04:1414
1893341992924,3cyclictest9508-21xdg-desktop-por11:30:4614
1893341992924,3cyclictest9508-21xdg-desktop-por11:30:4614
1893341992924,3cyclictest1990307-21WRScene~der#43108:34:1814
1893341992924,3cyclictest1990307-21WRScene~der#43108:24:3414
1893341992924,3cyclictest11828-21thunderbird07:42:2614
189334199291,27cyclictest0-21swapper/809:51:3814
189334199290,27cyclictest1990307-21WRScene~der#43109:48:2214
189334199290,27cyclictest11828-21thunderbird07:53:4514
1893340992927,2cyclictest3828773-21AppRun08:08:0713
1893340992927,1cyclictest3829504-21AppRun08:28:2613
1893338992926,1cyclictest0-21swapper/509:33:1511
1893337992926,2cyclictest1893631-21StreamT~10
1893334992929,0cyclictest0-21swapper/210:27:508
1893334992929,0cyclictest0-21swapper/210:03:018
1893334992927,2cyclictest3940150-21vncviewer12:22:138
1893334992927,1cyclictest1903086-21StreamT~8
1893334992927,1cyclictest0-21swapper/212:33:308
1893334992926,3cyclictest0-21swapper/210:15:478
1893351992828,0cyclictest0-21swapper/1511:48:287
1893351992828,0cyclictest0-21swapper/1508:53:427
1893351992827,0cyclictest0-21swapper/1509:31:197
1893351992826,1cyclictest0-21swapper/1512:05:287
1893351992826,1cyclictest0-21swapper/1511:55:207
1893351992826,1cyclictest0-21swapper/1510:47:127
1893351992826,1cyclictest0-21swapper/1510:44:547
1893351992826,1cyclictest0-21swapper/1510:34:567
1893351992826,1cyclictest0-21swapper/1510:25:167
1893351992826,1cyclictest0-21swapper/1510:10:447
1893351992826,1cyclictest0-21swapper/1508:29:387
1893351992826,1cyclictest0-21swapper/1508:22:587
1893351992826,1cyclictest0-21swapper/1508:12:477
1893351992826,1cyclictest0-21swapper/1508:08:347
1893351992826,1cyclictest0-21swapper/1507:33:127
1893351992826,1cyclictest0-21swapper/1507:17:427
1893351992826,1cyclictest0-21swapper/1507:10:127
1893351992825,1cyclictest0-21swapper/1507:37:247
1893350992828,0cyclictest0-21swapper/1410:15:476
1893350992826,1cyclictest0-21swapper/1412:14:046
1893350992826,1cyclictest0-21swapper/1411:55:206
1893350992826,1cyclictest0-21swapper/1411:35:246
1893350992826,1cyclictest0-21swapper/1411:20:526
1893350992826,1cyclictest0-21swapper/1411:20:526
1893350992826,1cyclictest0-21swapper/1411:11:156
1893350992826,1cyclictest0-21swapper/1410:53:526
1893350992826,1cyclictest0-21swapper/1410:41:266
1893350992826,1cyclictest0-21swapper/1409:13:206
1893350992826,1cyclictest0-21swapper/1409:13:206
1893350992826,1cyclictest0-21swapper/1409:05:446
1893350992826,1cyclictest0-21swapper/1409:03:146
1893350992826,1cyclictest0-21swapper/1408:50:126
1893350992826,1cyclictest0-21swapper/1408:45:306
1893350992826,1cyclictest0-21swapper/1408:38:206
1893350992826,1cyclictest0-21swapper/1408:16:126
1893350992826,1cyclictest0-21swapper/1408:08:426
1893350992826,1cyclictest0-21swapper/1407:59:466
1893350992826,1cyclictest0-21swapper/1407:52:396
1893350992826,1cyclictest0-21swapper/1407:48:326
1893350992826,1cyclictest0-21swapper/1407:42:386
1893350992826,1cyclictest0-21swapper/1407:33:526
1893350992826,1cyclictest0-21swapper/1407:29:356
1893350992826,1cyclictest0-21swapper/1407:13:286
1893350992825,1cyclictest0-21swapper/1412:20:486
1893348992828,0cyclictest0-21swapper/1307:59:125
189334599280,27cyclictest0-21swapper/1107:19:273
1893342992828,0cyclictest0-21swapper/908:32:2915
1893342992826,1cyclictest1931-21snmpd12:07:2715
1893341992826,1cyclictest1931-21snmpd11:55:3614
189334199280,27cyclictest9508-21xdg-desktop-por12:24:0214
189334199280,27cyclictest0-21swapper/810:39:2514
1893340992828,0cyclictest0-21swapper/707:53:2413
1893340992827,1cyclictest3829504-21AppRun12:33:5213
189334099280,1cyclictest1055759-21firefox09:38:2713
1893339992826,1cyclictest1931-21snmpd07:20:1312
1893338992826,1cyclictest1931-21snmpd08:39:4211
189333899280,28cyclictest1951121-21StreamT~11
189333899280,27cyclictest0-21swapper/508:10:2611
1893337992827,1cyclictest3828778-21AppRun08:34:3110
1893337992827,1cyclictest0-21swapper/409:31:1910
189333599281,3cyclictest12295-21Renderer07:33:409
1893334992821,6cyclictest46-21ksoftirqd/212:37:108
189333499280,28cyclictest1990307-21WRScene~der#43108:13:058
1893333992826,1cyclictest1931-21snmpd08:47:361
1893333992823,4cyclictest1931-21snmpd11:31:141
1893333992823,4cyclictest1931-21snmpd11:31:141
189333399280,27cyclictest0-21swapper/107:52:071
189333399280,27cyclictest0-21swapper/107:49:531
189333399280,26cyclictest0-21swapper/109:39:351
189333399280,26cyclictest0-21swapper/107:32:251
189333299285,1cyclictest0-21swapper/010:39:360
1893332992828,0cyclictest0-21swapper/008:02:250
1893332992827,0cyclictest28374-21kworker/0:1+events09:09:000
1893332992826,0cyclictest28374-21kworker/0:1+events08:16:340
1893332992825,2cyclictest28374-21kworker/0:1+events11:20:320
1893332992825,2cyclictest28374-21kworker/0:1+events11:20:320
1893332992825,2cyclictest28374-21kworker/0:1+events09:40:440
189333299280,26cyclictest0-21swapper/011:11:550
1893351992727,0cyclictest0-21swapper/1507:48:407
1893351992726,0cyclictest0-21swapper/1512:10:487
1893351992726,0cyclictest0-21swapper/1511:31:067
1893351992726,0cyclictest0-21swapper/1511:31:067
1893351992726,0cyclictest0-21swapper/1511:29:227
1893351992726,0cyclictest0-21swapper/1511:29:227
1893351992726,0cyclictest0-21swapper/1511:21:367
1893351992726,0cyclictest0-21swapper/1511:21:367
1893351992726,0cyclictest0-21swapper/1511:02:467
1893351992726,0cyclictest0-21swapper/1510:38:147
1893351992726,0cyclictest0-21swapper/1510:19:227
1893351992726,0cyclictest0-21swapper/1509:48:507
1893351992726,0cyclictest0-21swapper/1509:10:367
1893351992726,0cyclictest0-21swapper/1509:10:357
1893351992725,1cyclictest0-21swapper/1512:23:547
1893351992725,1cyclictest0-21swapper/1512:00:407
1893351992725,1cyclictest0-21swapper/1511:44:367
1893351992725,1cyclictest0-21swapper/1511:36:447
1893351992725,1cyclictest0-21swapper/1509:53:367
1893351992725,1cyclictest0-21swapper/1508:16:127
1893351992725,1cyclictest0-21swapper/1508:00:227
1893351992725,1cyclictest0-21swapper/1507:54:227
1893351992725,1cyclictest0-21swapper/1507:42:487
189335199270,1cyclictest0-21swapper/1511:05:227
1893350992727,0cyclictest0-21swapper/1409:45:246
1893350992727,0cyclictest0-21swapper/1408:58:526
1893350992727,0cyclictest0-21swapper/1408:41:366
1893350992726,0cyclictest0-21swapper/1411:00:166
1893350992726,0cyclictest0-21swapper/1410:00:516
1893350992726,0cyclictest0-21swapper/1409:55:206
1893350992726,0cyclictest0-21swapper/1409:15:466
1893350992726,0cyclictest0-21swapper/1409:15:466
1893350992726,0cyclictest0-21swapper/1408:30:126
1893350992725,1cyclictest0-21swapper/1412:39:246
1893350992725,1cyclictest0-21swapper/1412:25:026
1893350992725,1cyclictest0-21swapper/1409:50:086
1893350992725,1cyclictest0-21swapper/1407:21:006
189335099270,4cyclictest0-21swapper/1412:34:096
189334899270,26cyclictest0-21swapper/1311:41:415
189334899270,1cyclictest0-21swapper/1311:02:345
189334899270,1cyclictest0-21swapper/1308:59:545
189334899270,1cyclictest0-21swapper/1308:51:035
189334699270,26cyclictest0-21swapper/1211:41:434
189334699270,1cyclictest0-21swapper/1209:49:084
189334699270,1cyclictest0-21swapper/1209:22:194
189334699270,1cyclictest0-21swapper/1209:22:184
189334699270,1cyclictest0-21swapper/1208:21:594
1893345992726,1cyclictest1931-21snmpd08:37:213
1893345992726,1cyclictest0-21swapper/1111:22:563
1893345992726,1cyclictest0-21swapper/1111:22:553
189334599270,26cyclictest0-21swapper/1109:29:313
189334599270,25cyclictest0-21swapper/1110:33:243
189334599270,1cyclictest0-21swapper/1110:27:453
1893343992726,1cyclictest1931-21snmpd07:52:312
1893343992719,5cyclictest128-21ksoftirqd/1012:26:542
1893343992716,8cyclictest128-21ksoftirqd/1012:37:102
1893342992726,1cyclictest1931-21snmpd10:25:0215
1893341992724,3cyclictest11828-21thunderbird10:25:1014
1893341992723,4cyclictest353985-21Isolated15:05:2314
1893341992723,4cyclictest353985-21Isolated15:05:2314
1893341992723,3cyclictest11828-21thunderbird08:49:3814
1893341992712,12cyclictest3328821-21Timer09:31:1914
189334199270,27cyclictest0-21swapper/811:24:5314
189334199270,27cyclictest0-21swapper/811:24:5314
189334199270,26cyclictest9508-21xdg-desktop-por09:07:0214
189334199270,26cyclictest1910591-21cupsd09:03:5014
189334199270,1cyclictest0-21swapper/810:12:2114
1893340992724,2cyclictest11828-21thunderbird09:04:3713
189334099270,27cyclictest0-21swapper/709:14:5913
189334099270,27cyclictest0-21swapper/709:14:5913
189334099270,26cyclictest11828-21thunderbird07:37:4213
1893339992726,1cyclictest1931-21snmpd11:25:5612
1893339992726,1cyclictest1931-21snmpd11:25:5612
1893339992726,1cyclictest1931-21snmpd11:00:2512
1893339992726,1cyclictest1931-21snmpd10:00:2912
1893339992725,1cyclictest1931-21snmpd10:59:4912
1893339992725,1cyclictest1931-21snmpd07:39:4612
1893338992727,0cyclictest0-21swapper/507:43:4711
1893338992726,1cyclictest1931-21snmpd09:04:3311
1893338992726,1cyclictest0-21swapper/512:33:5111
189333899270,1cyclictest0-21swapper/512:18:0211
189333899270,1cyclictest0-21swapper/510:02:3811
189333899270,1cyclictest0-21swapper/508:20:5911
1893337992725,1cyclictest1931-21snmpd07:42:1910
1893337992725,1cyclictest0-21swapper/412:09:5410
189333799272,1cyclictest0-21swapper/409:02:1510
189333799270,26cyclictest0-21swapper/411:49:4710
189333599271,1cyclictest0-21swapper/310:14:219
189333599270,5cyclictest0-21swapper/312:26:539
189333599270,27cyclictest0-21swapper/310:59:059
189333599270,27cyclictest0-21swapper/310:27:599
189333599270,1cyclictest0-21swapper/311:35:389
189333599270,1cyclictest0-21swapper/311:34:119
189333599270,1cyclictest0-21swapper/311:34:119
189333599270,1cyclictest0-21swapper/311:28:059
189333599270,1cyclictest0-21swapper/311:28:059
1893334992726,1cyclictest1931-21snmpd08:57:218
189333499270,27cyclictest0-21swapper/207:26:408
189333499270,1cyclictest0-21swapper/209:49:178
1893333992726,1cyclictest0-21swapper/108:29:351
189333399270,26cyclictest0-21swapper/112:30:201
189333399270,26cyclictest0-21swapper/112:06:451
189333399270,26cyclictest0-21swapper/111:40:411
189333399270,26cyclictest0-21swapper/110:47:301
189333399270,26cyclictest0-21swapper/109:52:141
189333399270,26cyclictest0-21swapper/108:15:471
1893332992726,1cyclictest28374-21kworker/0:1+events11:07:580
1893332992726,1cyclictest28374-21kworker/0:1+events08:56:490
1893332992726,1cyclictest28374-21kworker/0:1+events08:54:580
1893332992726,1cyclictest28374-21kworker/0:1+events08:27:580
1893332992726,1cyclictest1931-21snmpd08:22:050
1893332992726,0cyclictest28374-21kworker/0:1+events11:27:100
1893332992726,0cyclictest28374-21kworker/0:1+events11:27:100
1893332992725,2cyclictest1973256-21kworker/0:3+events11:46:020
1893332992725,1cyclictest28374-21kworker/0:1+events10:55:040
1893332992725,1cyclictest1973256-21kworker/0:3+events12:11:040
1893332992725,1cyclictest1931-21snmpd09:50:260
1893332992715,11cyclictest7825-21Xorg09:31:490
189333299270,26cyclictest0-21swapper/009:13:430
189333299270,26cyclictest0-21swapper/009:13:430
189333299270,25cyclictest0-21swapper/008:37:060
1893351992626,0cyclictest0-21swapper/1512:39:507
1893351992626,0cyclictest0-21swapper/1512:26:507
1893351992626,0cyclictest0-21swapper/1511:10:327
1893351992626,0cyclictest0-21swapper/1510:55:087
1893351992626,0cyclictest0-21swapper/1510:23:467
1893351992626,0cyclictest0-21swapper/1510:00:547
1893351992626,0cyclictest0-21swapper/1509:55:197
1893351992626,0cyclictest0-21swapper/1509:25:167
1893351992626,0cyclictest0-21swapper/1508:56:027
1893351992626,0cyclictest0-21swapper/1508:41:507
1893351992626,0cyclictest0-21swapper/1507:28:147
1893351992626,0cyclictest0-21swapper/1507:21:227
1893351992625,0cyclictest0-21swapper/1511:50:527
1893351992625,0cyclictest0-21swapper/1510:50:017
1893351992625,0cyclictest0-21swapper/1510:05:167
1893351992625,0cyclictest0-21swapper/1509:40:067
1893351992625,0cyclictest0-21swapper/1508:46:207
1893351992624,1cyclictest0-21swapper/1509:15:087
1893351992624,1cyclictest0-21swapper/1509:15:087
1893350992626,0cyclictest0-21swapper/1412:01:006
1893350992626,0cyclictest0-21swapper/1411:50:526
1893350992626,0cyclictest0-21swapper/1411:47:046
1893350992626,0cyclictest0-21swapper/1411:41:106
1893350992626,0cyclictest0-21swapper/1411:32:566
1893350992626,0cyclictest0-21swapper/1411:32:566
1893350992626,0cyclictest0-21swapper/1411:25:146
1893350992626,0cyclictest0-21swapper/1411:25:146
1893350992626,0cyclictest0-21swapper/1411:15:366
1893350992626,0cyclictest0-21swapper/1410:45:086
1893350992626,0cyclictest0-21swapper/1410:30:086
1893350992626,0cyclictest0-21swapper/1410:26:266
1893350992626,0cyclictest0-21swapper/1410:05:166
1893350992626,0cyclictest0-21swapper/1409:35:046
1893350992626,0cyclictest0-21swapper/1408:25:106
1893350992626,0cyclictest0-21swapper/1408:10:486
1893350992625,0cyclictest0-21swapper/1410:20:146
1893350992624,1cyclictest0-21swapper/1411:05:206
189334899263,1cyclictest0-21swapper/1311:28:015
189334899263,1cyclictest0-21swapper/1311:28:015
1893348992625,1cyclictest1931-21snmpd11:39:505
1893348992625,1cyclictest1931-21snmpd08:20:355
189334899260,25cyclictest0-21swapper/1310:14:095
189334899260,1cyclictest0-21swapper/1312:14:305
189334899260,1cyclictest0-21swapper/1309:31:185
1893346992625,1cyclictest1931-21snmpd10:43:494
1893346992625,1cyclictest1931-21snmpd08:50:274
1893346992625,1cyclictest0-21swapper/1212:31:004
1893346992623,2cyclictest9508-21xdg-desktop-por09:07:334
189334699261,16cyclictest11828-21thunderbird07:23:234
189334699260,25cyclictest7825-21Xorg10:56:454
189334599264,20cyclictest7825-21Xorg12:18:013
1893345992625,1cyclictest1931-21snmpd08:45:003
189334599260,25cyclictest1911326-21pmdaproc08:02:013
1893343992625,1cyclictest1911328-21pmdalinux09:22:012
1893343992625,1cyclictest1911328-21pmdalinux09:22:012
1893342992625,1cyclictest1931-21snmpd09:31:3415
1893342992625,1cyclictest1931-21snmpd07:54:3115
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional