How can I get RAM frequency from the OS X low-level terminal? Which comand can help in this situation?
I'm configuring a wireless router. I know the non-ovelapping channels are 1,6 & 11. However, my router only specifies frequencies that I can select, not channels. What are the frequencies that map to channels 1,6 & 11?
I'm trying to measure the average cpu frequency in an DVFS enabled cpu for specific interval , the obvious way of periodically sampling /proc/cpuinfo has very large variants. The cpufreq-stats driver gave me some hope ,e.g.
cat /sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state 2600000 118148 2000000 8562 1600000 11041 1200000 3428602 # lots of ticks is idle ticks
but unfortunately it is mixed with idle ticks(see patch "Do not account for idle time when tracking time_in_state"). During idle time it is probable that cpu will fall back to the lowest frequency ,thus skew the frequency distribution significantly .
The patch above utilize the account_idle_tick function to remove the idle ticks from statics, but it seems only works for xen kernel. Is there alternative way to measure average cpu frequency?
I'd like to add wireless to my network, and I need multiple access points to cover the whole area. I'd like to set them up so that there's only one "wireless network" that the clients see, and it switches them as seamlessly as possible between access points as they wander around (if that's not possible, then at least have it so that they don't need to set up the security by hand on each one the first time, if possible).
I've searched online, and there are quite a few sets of mixed instructions (same vs different SSID, frequency, does the security need to match exactly, etc.). Can somebody who has some experience doing this please let me know what they did? I imagine it's pretty simple, but there seems to be no clear cut "yes, you can do this" online, even though I know you can.
I have a mid-size LAN with about 20 workstations and two Domain Controllers on it. Also, I'll be doing this with consumer wireless components, if it makes a difference, not enterprise-level components (ie. Linksys rather than Cisco).
I've got a PHP application that is generating large amounts of warnings and notices in the log file..
I'm fixing these one at a time.
I would like to be able to fix the most frequently occurring first in order to maximize the amount of effect my changes have on the size of the log file.
How can I use grep/sed/regex etc.find out which notices are most frequent?
I can't compare the whole line since the time stamp is at the beginning, but perhaps a listing/grouping/sorting of "on line ..."?
