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2026-09-15 - 15:12
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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 Tue Sep 15, 2026 12:46:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501140irq/42-ahci0-21swapper/707:09:039
31922210693sleep80-21swapper/807:08:1010
30549501010irq/53-eth0-rx-0-21swapper/107:09:551
3054950990irq/53-eth0-rx-0-21swapper/507:05:427
3054950970irq/53-eth0-rx-0-21swapper/407:06:396
3054950970irq/53-eth0-rx-0-21swapper/207:05:224
3054950940irq/53-eth0-rx-0-21swapper/307:07:105
3054950910irq/53-eth0-rx-0-21swapper/1007:06:552
3054950890irq/53-eth0-rx-0-21swapper/1107:06:263
3185527567sleep60-21swapper/607:07:208
3172226653sleep00-21swapper/007:05:380
3185826553sleep90-21swapper/907:07:2411
32208993819cyclictest0-21swapper/008:08:440
32261992422cyclictest0-21swapper/1107:12:253
32261992321cyclictest286212chrt09:12:023
32261992119cyclictest0-21swapper/1108:08:443
32208992018cyclictest0-21swapper/010:08:190
3225499192cyclictest0-21swapper/912:39:3111
3225499192cyclictest0-21swapper/911:43:4511
3225499192cyclictest0-21swapper/910:27:3911
3220899190cyclictest0-21swapper/007:16:360
14750190irq/18-uhci_hcd0-21swapper/412:15:226
3225499181cyclictest3054950irq/53-eth0-rx-10:35:3911
3225499181cyclictest0-21swapper/912:25:1411
3225499181cyclictest0-21swapper/912:11:4011
3225499181cyclictest0-21swapper/912:02:1311
3225499181cyclictest0-21swapper/911:54:5311
3225499181cyclictest0-21swapper/911:31:2211
3225499181cyclictest0-21swapper/911:18:2611
3225499181cyclictest0-21swapper/911:00:3811
3225499181cyclictest0-21swapper/910:56:5311
3225499181cyclictest0-21swapper/910:34:5211
3225499181cyclictest0-21swapper/910:10:3411
3225499181cyclictest0-21swapper/909:38:0411
3225499181cyclictest0-21swapper/909:15:0411
3220899182cyclictest0-21swapper/008:50:010
32208991816cyclictest0-21swapper/010:45:330
32255991715cyclictest0-21swapper/1009:34:482
3225499170cyclictest10644-21latency_hist09:25:0011
3225499170cyclictest0-21swapper/909:32:3111
3225499170cyclictest0-21swapper/909:05:1111
3225499170cyclictest0-21swapper/907:49:4311
3225099172cyclictest0-21swapper/609:44:578
32247991716cyclictest23994-21qemu-kvm09:23:557
32247991715cyclictest27287-21snmp_easybox.os11:45:277
32223991715cyclictest2305-21snmpd09:09:254
32223991715cyclictest2305-21snmpd07:56:254
32223991715cyclictest12894-21irqstats09:25:184
13450170irq/18-ehci_hcd0-21swapper/009:45:210
3226199160cyclictest0-21swapper/1108:28:523
32255991615cyclictest811rcuc/1008:02:532
32255991615cyclictest0-21swapper/1012:27:072
32255991615cyclictest0-21swapper/1012:05:132
32255991615cyclictest0-21swapper/1011:49:202
32255991615cyclictest0-21swapper/1011:30:222
32255991615cyclictest0-21swapper/1010:38:162
32255991615cyclictest0-21swapper/1010:27:552
32255991615cyclictest0-21swapper/1009:37:352
32255991615cyclictest0-21swapper/1009:25:082
32255991615cyclictest0-21swapper/1009:20:312
32255991614cyclictest32625-1kworker/10:2H07:32:192
32255991614cyclictest17198-21kworker/10:110:56:262
32255991614cyclictest0-21swapper/1012:14:592
32255991614cyclictest0-21swapper/1011:55:192
32255991614cyclictest0-21swapper/1011:17:272
32255991614cyclictest0-21swapper/1010:00:412
32255991614cyclictest0-21swapper/1009:55:402
32255991614cyclictest0-21swapper/1009:54:032
32255991614cyclictest0-21swapper/1009:11:182
32254991615cyclictest14299-21rm09:52:2611
32254991615cyclictest0-21swapper/911:05:3411
32254991615cyclictest0-21swapper/910:17:1711
32254991615cyclictest0-21swapper/910:00:0211
32254991615cyclictest0-21swapper/909:47:5611
32254991615cyclictest0-21swapper/909:25:1111
32254991615cyclictest0-21swapper/909:11:2711
32250991615cyclictest1193-21qemu-kvm10:30:128
32247991615cyclictest31969-21qemu-kvm07:43:397
3223699161cyclictest0-21swapper/308:15:265
32223991614cyclictest13703-21snmp_easybox.os12:00:264
32223991614cyclictest12268-21snmp_rack3slot908:06:014
3222399161cyclictest0-21swapper/211:33:324
1699160watchdog/00-21swapper/011:14:430
32261991514cyclictest3054950irq/53-eth0-rx-10:13:583
32261991514cyclictest3054950irq/53-eth0-rx-09:23:583
32255991514cyclictest32625-1kworker/10:2H12:00:322
32255991514cyclictest32625-1kworker/10:2H11:51:482
32255991514cyclictest32625-1kworker/10:2H10:41:132
32255991514cyclictest32625-1kworker/10:2H08:08:382
32255991514cyclictest0-21swapper/1012:35:592
32255991514cyclictest0-21swapper/1012:30:182
32255991514cyclictest0-21swapper/1012:23:342
32255991514cyclictest0-21swapper/1012:15:142
32255991514cyclictest0-21swapper/1011:36:512
32255991514cyclictest0-21swapper/1011:26:522
32255991514cyclictest0-21swapper/1011:21:142
32255991514cyclictest0-21swapper/1011:10:082
32255991514cyclictest0-21swapper/1011:05:472
32255991514cyclictest0-21swapper/1011:00:142
32255991514cyclictest0-21swapper/1010:53:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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