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2025-04-04 - 00:35
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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
Characteristics of the 100 highest latencies:
System rackcslot2.osadl.org (updated Thu Apr 03, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1177121040,0sleep00-21swapper/023:01:190
437226955,9sleep10-21swapper/119:03:331
575226754,8sleep00-21swapper/019:04:340
260072670,1sleep10-21swapper/121:55:331
167062610,0sleep00-21swapper/023:50:310
207162580,1sleep00-21swapper/022:31:340
631199316,23cyclictest32685-21ssh22:48:020
6312992910,0cyclictest0-21swapper/123:53:371
6311992910,12cyclictest0-21swapper/021:46:300
6311992910,0cyclictest0-21swapper/000:06:230
631199290,23cyclictest1288-21ssh00:13:430
631199290,0cyclictest0-21swapper/020:29:270
631299272,24cyclictest0-21swapper/121:11:291
6311992727,0cyclictest0-21swapper/023:57:160
6312992624,1cyclictest0-21swapper/121:31:471
6312992624,1cyclictest0-21swapper/121:31:471
6311992622,3cyclictest12541-21apache223:13:440
631199260,2cyclictest0-21swapper/021:35:590
6312992525,0cyclictest0-21swapper/122:06:301
6312992521,2cyclictest7376-21/usr/sbin/munin23:38:471
6312992510,7cyclictest0-21swapper/100:30:071
631199250,21cyclictest25039-21ssh00:01:030
6312992423,1cyclictest0-21swapper/122:49:571
6312992419,4cyclictest20235-21ssh23:13:271
6312992419,4cyclictest12541-21apache221:20:051
6312992414,4cyclictest231ktimersoftd/120:08:501
631299240,2cyclictest28249-21ssh00:06:331
6311992424,0cyclictest0-21swapper/019:12:060
6311992421,3cyclictest12541-21apache219:20:590
6311992419,4cyclictest12519-21apache220:58:500
6311992410,6cyclictest0-21swapper/019:23:530
6311992410,10cyclictest0-21swapper/021:18:460
6312992323,0cyclictest0-21swapper/100:33:361
6312992320,3cyclictest12519-21apache221:38:121
6311992317,5cyclictest6304-21ssh23:36:590
6311992310,9cyclictest0-21swapper/022:08:410
6311992310,4cyclictest0-21swapper/022:48:410
6311992310,11cyclictest19912-21diskmemload21:16:190
631199230,1cyclictest32232-21ssh22:04:030
6312992222,0cyclictest0-21swapper/121:46:091
6312992221,1cyclictest32595-21ssh00:12:011
6312992221,1cyclictest0-21swapper/100:15:161
6312992215,6cyclictest22092-21ssh23:14:111
6312992212,6cyclictest24-21ksoftirqd/122:32:121
6312992210,7cyclictest0-21swapper/123:23:491
6312992210,7cyclictest0-21swapper/123:01:311
631299220,3cyclictest0-21swapper/123:31:021
631299220,21cyclictest0-21swapper/123:05:281
6311992222,0cyclictest0-21swapper/021:48:390
6311992220,1cyclictest7-21ksoftirqd/000:08:480
6311992215,4cyclictest12541-21apache223:28:090
631199220,3cyclictest0-21swapper/000:26:280
631199220,21cyclictest0-21swapper/022:20:310
631299212,18cyclictest18746-21kworker/1:000:20:411
6312992118,3cyclictest12519-21apache221:14:331
6312992118,2cyclictest0-21swapper/122:20:591
6312992115,5cyclictest6904-21ssh22:54:481
631199214,11cyclictest0-21swapper/023:18:430
6311992120,1cyclictest12541-21apache220:18:080
6311992120,1cyclictest0-21swapper/023:13:230
6311992114,5cyclictest25988-21sendmail22:38:320
631199211,19cyclictest0-21swapper/000:21:250
6311992110,6cyclictest0-21swapper/021:24:450
631299203,9cyclictest0-21swapper/119:33:441
631299202,9cyclictest0-21swapper/120:28:461
6312992020,0cyclictest0-21swapper/100:03:021
6312992018,1cyclictest5218-21ssh23:34:481
6312992017,2cyclictest231ktimersoftd/121:49:051
6312992016,3cyclictest12519-21apache219:32:461
6312992014,4cyclictest598-21lldpd20:24:551
6312992014,2cyclictest27554-21cpuspeed_turbos20:03:451
6312992012,4cyclictest0-21swapper/119:38:521
6312992011,4cyclictest717-21snmpd23:19:131
6312992010,8cyclictest0-21swapper/122:38:441
6312992010,3cyclictest0-21swapper/121:38:541
631199202,14cyclictest0-21swapper/023:04:250
6311992020,0cyclictest26194-21grep19:58:470
6311992016,4cyclictest0-21swapper/020:40:560
6311992010,7cyclictest0-21swapper/022:13:440
6311992010,6cyclictest0-21swapper/021:09:310
6311992010,5cyclictest0-21swapper/021:30:550
6311992010,5cyclictest0-21swapper/021:30:550
631299199,8cyclictest97750irq/106-eth1-rx00:27:201
631299195,7cyclictest32591-21users20:13:541
631299192,7cyclictest0-21swapper/120:38:531
6312991918,1cyclictest12541-21apache221:00:291
6312991910,5cyclictest0-21swapper/119:14:121
6312991910,4cyclictest0-21swapper/121:59:451
6312991910,1cyclictest0-21swapper/122:17:331
631199191,16cyclictest0-21swapper/021:43:160
6311991910,6cyclictest0-21swapper/023:30:020
6311991910,4cyclictest0-21swapper/020:03:450
6311991910,4cyclictest0-21swapper/000:28:540
6311991910,3cyclictest0-21swapper/020:48:480
1164721910,0sleep10-21swapper/123:44:061
631299189,3cyclictest7104-21ntp_states19:08:511
631299184,10cyclictest0-21swapper/120:33:451
6312991818,0cyclictest97850irq/107-eth1-rx23:48:581
6312991816,1cyclictest12541-21apache219:56:161
6312991810,3cyclictest0-21swapper/120:53:571
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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