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2023-06-06 - 05:58

x86 Intel Atom E640 @1000 MHz, Linux 3.18.11-rt7 (Profile)

Latency plot of system in rack #9, slot #4
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack9slot4.osadl.org (updated Tue Jun 06, 2023 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
24372991189cyclictest0-21swapper/022:30:190
23971111679sleep0-21swapper/120:19:261
69501150irq/18-mmc0278-21avahi-daemon20:19:170
24372991149cyclictest0-21swapper/023:55:220
24372991135cyclictest10409-21latency_hist23:04:490
24372991109cyclictest0-21swapper/000:55:340
24372991104cyclictest23630-21ntp_states01:30:310
24372991103cyclictest27343-21latency_hist22:14:470
24372991103cyclictest27343-21latency_hist22:14:470
24372991093cyclictest29610-21cat20:35:140
24372991093cyclictest27404-21latency_hist20:29:440
24372991089cyclictest0-21swapper/023:15:300
24372991084cyclictest10436-21cut00:50:070
24372991078cyclictest0-21swapper/021:35:400
24372991068cyclictest0-21swapper/021:19:570
24372991064cyclictest1162-21/usr/sbin/munin00:20:210
24372991057cyclictest0-21swapper/001:45:130
243729910560cyclictest6950irq/18-mmc000:39:520
24372991048cyclictest0-21swapper/001:04:520
24372991044cyclictest29737-21missed_timers00:05:250
24372991029cyclictest0-21swapper/021:59:460
24372991023cyclictest8785-21latency_hist22:59:490
24372991014cyclictest1923-21memory22:35:230
2437299998cyclictest0-21swapper/021:49:470
24372999815cyclictest2619-21latency_hist20:54:440
2437299979cyclictest0-21swapper/022:00:050
24372999748cyclictest4521-21diskstats00:30:160
24372999613cyclictest6865-21grep22:50:320
2437299959cyclictest18127-21latency_hist23:29:490
2437299958cyclictest0-21swapper/022:24:480
24372999560cyclictest6950irq/18-mmc020:59:450
24372999556cyclictest0-21swapper/021:15:200
2437299954cyclictest304-21runrttasks20:20:030
2437299944cyclictest1079-21latency_hist20:49:450
2437299938cyclictest0-21swapper/020:44:450
24372999353cyclictest74-21mmcqd/000:04:510
2437299935cyclictest15032-21latency_hist21:34:460
2437299934cyclictest16563-21latency_hist01:09:520
2437299927cyclictest12263-21diskstats23:10:180
24372999255cyclictest74-21mmcqd/022:44:480
24372999250cyclictest74-21mmcqd/001:19:520
2437299923cyclictest7947-21if_err_eth021:10:120
2437299919cyclictest0-21swapper/000:40:150
2437299918cyclictest0-21swapper/000:10:110
24372999150cyclictest22685-21latency_hist23:44:490
2437299908cyclictest0-21swapper/023:45:210
24373998924cyclictest22465-21sshd23:41:301
2437299897cyclictest74-21mmcqd/001:25:370
24372998945cyclictest74-21mmcqd/020:49:450
2437299894cyclictest91381sleep00:45:120
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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