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2025-12-06 - 08:50
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack3slot3.osadl.org (updated Sat Dec 06, 2025 00:46:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501100irq/42-ahci0-21swapper/119:09:301
6726210995sleep30-21swapper/319:06:075
6784210794sleep100-21swapper/1019:06:492
6836210593sleep60-21swapper/619:07:348
3066350930irq/52-eth0-rx-0-21swapper/219:08:524
3066350920irq/52-eth0-rx-0-21swapper/419:05:236
673228175sleep90-21swapper/919:06:1211
12250770irq/42-ahci0-21swapper/819:08:1810
680127260sleep00-21swapper/019:07:030
696526763sleep70-21swapper/719:08:369
3066350670irq/52-eth0-rx-0-21swapper/1119:08:263
3066450620irq/53-eth0-tx-0-21swapper/519:05:247
717299320cyclictest0-21swapper/019:28:480
717299250cyclictest0-21swapper/021:22:360
722099240cyclictest0-21swapper/820:45:0110
717299220cyclictest0-21swapper/021:30:010
717299210cyclictest0-21swapper/021:26:470
722199192cyclictest0-21swapper/922:08:2011
717299190cyclictest0-21swapper/021:19:520
717299190cyclictest0-21swapper/020:08:170
7222991817cyclictest811rcuc/1022:56:382
722299181cyclictest3066350irq/52-eth0-rx-00:30:202
722299181cyclictest3066350irq/52-eth0-rx-00:15:322
722299181cyclictest12250irq/42-ahci20:47:282
7221991816cyclictest5283-21diskstats23:30:1411
722199181cyclictest13645-21cpuspeed20:45:0911
722199181cyclictest0-21swapper/922:25:1811
722199181cyclictest0-21swapper/921:40:1111
722199181cyclictest0-21swapper/921:20:1811
722199181cyclictest0-21swapper/920:19:0811
722199181cyclictest0-21swapper/920:19:0811
7220991816cyclictest6897-21snmp_rack3slot921:20:1210
7220991816cyclictest3596-21snmp_rack3slot923:25:5110
7220991816cyclictest3596-21snmp_rack3slot923:25:5110
7220991816cyclictest2923-21diskstats19:45:1410
7220991816cyclictest2752-21snmp_rack3slot921:57:1210
7220991816cyclictest27106-21df_inode00:00:1510
7220991816cyclictest26023-21iostat21:00:2010
7220991816cyclictest25940-21snmp_easybox.os23:15:1310
7220991816cyclictest21930-21perl20:55:1610
7220991816cyclictest21294-21munin-run22:25:0110
7220991816cyclictest21135-21perl19:25:1510
7220991816cyclictest1888-21df00:10:1410
7220991816cyclictest18649-21snmp_rack3slot900:32:0310
7220991816cyclictest17831-21snmp_rack3slot923:01:2510
7220991816cyclictest16292-21yum20:45:3210
7220991816cyclictest15873-21snmp_rack3slot920:01:0210
7220991816cyclictest14154-21snmp_rack3slot921:30:1110
7220991816cyclictest12177-21snmp_rack3slot919:55:4810
7220991816cyclictest1145-21memory21:10:2210
7220991816cyclictest10473-21snmp_rack3slot922:50:4910
7220991816cyclictest10048-21snmp_rack3slot922:06:3910
7214991817cyclictest31126-21qemu-kvm21:34:208
717299180cyclictest0-21swapper/021:14:450
7222991716cyclictest0-21swapper/1020:10:082
722299170cyclictest90682sleep1020:36:102
722299170cyclictest89582sleep1021:20:282
722299170cyclictest85302chrt19:50:422
722299170cyclictest72782sleep1023:31:182
722299170cyclictest71152sleep1022:49:492
722299170cyclictest65892sleep1022:04:082
722299170cyclictest54792sleep1020:31:582
722299170cyclictest48722sleep1019:45:412
722299170cyclictest40572chrt00:11:352
722299170cyclictest39542sleep1021:15:152
722299170cyclictest37192sleep1023:27:302
722299170cyclictest37192sleep1023:27:302
722299170cyclictest33202sleep1022:42:492
722299170cyclictest322992sleep1023:20:422
722299170cyclictest319752sleep1022:37:002
722299170cyclictest3066350irq/52-eth0-rx-22:50:262
722299170cyclictest3066350irq/52-eth0-rx-21:56:542
722299170cyclictest3066350irq/52-eth0-rx-21:35:152
722299170cyclictest3066350irq/52-eth0-rx-21:11:002
722299170cyclictest3066350irq/52-eth0-rx-21:00:482
722299170cyclictest305712sleep1020:22:212
722299170cyclictest299152sleep1000:05:112
722299170cyclictest293692sleep1019:35:292
722299170cyclictest290422sleep1000:00:462
722299170cyclictest288612sleep1023:18:172
722299170cyclictest285762chrt21:50:072
722299170cyclictest282572sleep1022:30:482
722299170cyclictest280902chrt21:05:012
722299170cyclictest278472sleep1021:47:192
722299170cyclictest269172sleep1020:17:092
722299170cyclictest269172sleep1020:17:092
722299170cyclictest264292sleep1019:32:162
722299170cyclictest252572sleep1023:13:402
722299170cyclictest246892sleep1022:26:472
722299170cyclictest235922sleep1020:55:512
722299170cyclictest222272sleep1000:36:252
722299170cyclictest215162sleep1023:07:052
722299170cyclictest209912sleep1022:20:582
722299170cyclictest198702sleep1019:25:042
722299170cyclictest192272sleep1019:23:162
722299170cyclictest189772sleep1023:50:092
722299170cyclictest189772sleep1023:50:082
722299170cyclictest182882chrt20:05:192
722299170cyclictest181972sleep1023:46:332
722299170cyclictest181972sleep1023:46:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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