Hello Amit,
I have pulled changes and run with your suggested following command sudo ./idlestat --trace -t 5 -f /tmp/myoutput -- top
But still it came up with the output without any frequency information.
Total trace buffer: 153896 kB Log is 4.999537 secs long with 702 events clusterA@state hits total(us) avg(us) min(us) max(us) C6-SNB 175 4964449.00 28368.28 0.00 183908.00 cpu0@state hits total(us) avg(us) min(us) max(us) C6-SNB 105 4995794.00 47578.99 49.00 223927.00 cpu0 wakeups name count irq040 eth0 39 cpu1@state hits total(us) avg(us) min(us) max(us) C1-SNB 5 852.00 170.40 41.00 446.00 C6-SNB 64 4996275.00 78066.80 113.00 323886.00 cpu1 wakeups name count irq018 ata_piix 14 cpu2@state hits total(us) avg(us) min(us) max(us) C1-SNB 35 9158.00 261.66 121.00 1396.00 C6-SNB 51 4969643.00 97443.98 51.00 323897.00 cpu2 wakeups name count cpu3@state hits total(us) avg(us) min(us) max(us) C1-SNB 4 383.00 95.75 26.00 129.00 C6-SNB 49 4997267.00 101985.04 67.00 319905.00 cpu3 wakeups name count
The problem probably is not in idlestat tool. There is no cpu_frequency line in the trace file.
-- Best Regards Salman Ahmed
On Thursday, 19 June 2014, 18:23, Amit Kucheria amit.kucheria@linaro.org wrote: Hi Salman,
On Thu, Jun 19, 2014 at 1:36 PM, Salman Ahmed salmanyam@yahoo.com wrote:
Hello, Running top command with idlestat tool doesn't show any frequency information sometimes. I have run the program with the following command - # sudo idlestat --trace -t 5 -f /tmp/myoutput /usr/bin/top and it ended up with the following output where there is no frequency state information. The file "myoutput" doesn't have any cpu_frequency entry either.
There was a bug in the waitpid logic, a fix for which was committed to the git tree.
Please try this again with the new code.
Also, you might want to use it as such:
sudo idlestat --trace -t 5 -f /tmp/myoutput -- /usr/bin/top
(note the --) to ensure that idlestat doesn't get confused about the command being another commandline parameter.
Total trace buffer: 153896 kB Log is 4.999488 secs long with 675 events clusterA@state hits total(us) avg(us) min(us) max(us) C6-SNB 163 4955450.00 30401.53 0.00 141946.00 cpu0@state hits total(us) avg(us) min(us) max(us) C1-SNB 1 912.00 912.00 912.00 912.00 C6-SNB 115 4996270.00 43445.83 67.00 211819.00 cpu0 wakeups name count irq040 eth0 50 cpu1@state hits total(us) avg(us) min(us) max(us) C1-SNB 3 10809.00 3603.00 27.00 10742.00 C6-SNB 62 4985746.00 80415.26 59.00 223952.00 cpu1 wakeups name count irq018 ata_piix 6 cpu2@state hits total(us) avg(us) min(us) max(us) C1-SNB 3 10800.00 3600.00 26.00 10745.00 C6-SNB 52 4986684.00 95897.77 5724.00 223957.00 cpu2 wakeups name count cpu3@state hits total(us) avg(us) min(us) max(us) C1-SNB 20 15123.00 756.15 121.00 10895.00 C6-SNB 47 4962591.00 105587.04 1.00 223950.00 cpu3 wakeups name count Does that mean processors spent all time in idle state and none in active state?
-- Best Regards Salman Ahmed
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