Dr. David Kirkby wrote: >> >>> Also useful would be a message when the speed is >>> >> reduced. I get messages like: >> >>> cpudrv: [ID 495817 kern.info] NOTICE: >>> >> cpudrv_pm_set_topspeed: instance 1: has new max power >> of 200 >> 0 MHz >> >>> but dont see any if the speed is reduce - I've no >>> >> idea if it does reduce. >> >> >> If you get many of those message, I would classify >> that as a bug >> >> (in fact, any message that the CPU power frequency >> has changed is a bug, >> IMHO, as it might cause your disks to spin up when >> the log message hits >> the disk) >> >> kstat shows you the current frequencies. >> >> Casper >> >> _______________________________________________ >> opensolaris-discuss mailing list >> opensolaris-discuss@opensolaris.org >> > > I've just checked /var/adm/messages on my laptop and see it has been booted > 38 times. The cpudrv_pm_set_topspeed message has appeared 180 times - 90 with > instance of 0 and 90 with an instance of 1. > > bash-3.00$ grep 'NOTICE: cpudrv_pm_set_topspeed: instance 1: has new max > power of 2000 MHz' /var/adm/messages | wc -l > 90 > bash-3.00$ grep 'NOTICE: cpudrv_pm_set_topspeed: instance 0: has new max > power of 2000 MHz' /var/adm/messages | wc -l > 90 > bash-3.00$ grep 'SunOS Release 5.11 Version snv_70b 64-bit' > /var/adm/messages | wc -l > 38 > > > BTW, It seems that whoever wrote this bit of code needs to learn about SI > units, since I thought power was measured in Watts, not MHz. I thought MHz > was a unit of frequency and not power. > I wrote the bit of code and yes, I was embarrassed when I read it over as part of this thread. I was wondering if anyone was going to mention the absurdity of its content.
As for the usefulness of the message, I think the information (the fact that the max frequency is changing) is useful. Might need to be another kstat rather than hidden away in the system log. Mark > It reminds me once when I worked in IT for about 6 months. My manager wanted > me to tell him the power consumption of some kit, as we were getting quotes > for air conditioning. So I added it up and emailed him the result in Watts. I > then got a message back that he did not want it in Watts, but did not specify > a unit. So I converted to kilo Joules per fortnight and email it to him in > that. I then got the reply that "Watts would do". > _______________________________________________ opensolaris-discuss mailing list opensolaris-discuss@opensolaris.org
