On 19.07.2013 12:32, lee wrote: > Suvayu Ali <fatkasuvayu+linux@xxxxxxxxx> writes: > >> On Thu, Jul 18, 2013 at 05:13:12PM +0200, lee wrote: >>> Hi, >>> >>> does anyone know what conky displays as CPU usage for a process? The >>> values are different in conky and top, for example, top might show 11.6 >>> for a process while conky says 3.01. >> Not on my system. The polling times are a bit different I think, so I >> see same ballpark numbers: 2.53 vs 2.4, etc. > Yes, top has 3 seconds update interval by default, and I have conky at > 10 seconds. I wish I knew what the effect of that actually is, > i. e. will it display averages for the last 10 seconds, or does it > always display what it is seeing at the very moment the information is > displayed? > >> Maybe you could fiddle with these two: >> >> cpu_avg_samples 2 > Do you know what this actually does? Google hasn't been helpful at all > with it. > > It didn't seem to change anything. The documentation only says "The > number of samples to average for CPU monitoring.". > > Afaik, the cpu load is read from /proc/stat. Does conky read this file > more often per update interval when you increase cpu_avg_samples? > >> update_interval 1.0 > Even with an update interval of one second in both conky and top, there > is no correlation between the cpu usage for the process. With > 'cpu_avg_samples 4', conky shows something between 0.5 and 1.10 for a > process that is around 3% in top. > > > BTW, conky also ignores an update interval specified for mail checking. > I specified an hour and it updates every 10 seconds. Maybe I'll write > my own monitor so I do know what it does, or stay with xosview ... > > Answer for all your questions is in conky's source code. In file src/linux.cc, there is a function called get_cpu_count which grabs data from /proc/stat . After this function you'll find several other functions that open /proc/stat . Mateusz Marzantowicz -- users mailing list users@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe or change subscription options: https://admin.fedoraproject.org/mailman/listinfo/users Guidelines: http://fedoraproject.org/wiki/Mailing_list_guidelines Have a question? Ask away: http://ask.fedoraproject.org
