You are here: Home / Projects / QA Farm Realtime / Latency plots / 
2022-01-26 - 11:32

0, Linux 4.18.5-rt3 (Profile)

Latency plot of system in rack #a, slot #3
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackaslot3 (updated Sun Nov 07, 2021 12:43:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3108699251,0cyclictest23871-21irqstats10:59:394
3108699251,0cyclictest18626-21bash11:47:254
3108699251,0cyclictest10144-21sshd11:31:474
3108699250,0cyclictest24096-21manpath11:58:224
3108699241,0cyclictest7192-21sshd11:26:084
3108699240,0cyclictest21380-21bash11:52:574
3108699240,0cyclictest1457-21grep07:34:444
3110399235,0cyclictest24180-21ntp_kernel_pll_10:59:427
3108699231,0cyclictest13527-21sshd11:38:484
3108699231,0cyclictest0-21swapper/411:10:494
3108699231,0cyclictest0-21swapper/411:04:384
3108699230,0cyclictest9849-21scp12:31:344
3108699230,0cyclictest9849-21scp12:31:344
3108699230,0cyclictest5459-21sshd12:24:404
3108699230,0cyclictest27332-21sshd12:04:324
3108699230,0cyclictest2555-21sshd11:19:454
3108699230,0cyclictest16602-21sshd12:44:474
3108699230,0cyclictest16602-21sshd12:44:474
3108699230,0cyclictest14016-21sshd11:39:374
3108699230,0cyclictest0-21swapper/410:49:384
3108699230,0cyclictest0-21swapper/408:44:414
92550220,0irq/32-eth0-TxR0-21swapper/312:39:423
92450220,0irq/31-eth0-TxR0-21swapper/212:29:362
92450220,0irq/31-eth0-TxR0-21swapper/212:29:362
92250220,0irq/29-eth0-TxR0-21swapper/012:01:190
3108699221,0cyclictest8868-21latency_hist10:29:204
3108699221,0cyclictest25551-21sed09:49:384
3108699221,0cyclictest15686-21timerandwakeup09:24:474
3108699221,0cyclictest13520-21sed10:39:354
3108699221,0cyclictest10275-21latency_hist09:14:214
3108699220,0cyclictest451-21sshd12:14:464
3108699220,0cyclictest30005-21scp12:09:474
3108699220,0cyclictest24613-21sshd11:59:344
3108699220,0cyclictest22140-21bash10:55:584
3108699220,0cyclictest0-21swapper/412:39:364
3108699220,0cyclictest0-21swapper/411:14:464
3108699220,0cyclictest0-21swapper/410:44:464
3108699220,0cyclictest0-21swapper/410:14:444
3108699220,0cyclictest0-21swapper/408:34:204
3108699220,0cyclictest0-21swapper/407:45:094
3108699220,0cyclictest0-21swapper/407:29:384
92450210,0irq/31-eth0-TxR5459-21sshd12:24:372
92450210,0irq/31-eth0-TxR0-21swapper/212:44:392
92450210,0irq/31-eth0-TxR0-21swapper/212:44:392
92450210,0irq/31-eth0-TxR0-21swapper/211:54:422
92450210,0irq/31-eth0-TxR0-21swapper/211:38:052
92450210,0irq/31-eth0-TxR0-21swapper/211:04:452
92450210,0irq/31-eth0-TxR0-21swapper/210:54:492
92350210,0irq/30-eth0-TxR0-21swapper/112:34:441
92350210,0irq/30-eth0-TxR0-21swapper/112:10:411
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional