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0answers
26 views

Why is my scaling_max_freq stuck at 1GHz (on a Core Duo processor)

I recently setup an old Thinkpad T60 as a secondary desktop (via a docking station), but when I tried it, it was feeling sluggish and I soon figured that it was somehow stuck at 1GHz, even tho its ...
1
vote
1answer
142 views

Microwave Link Latency

An internet provider installed us a microwave link: The issue is that: The ping from our side to the gateway is about 1-2 ms, which is great, but it remains like this for only 12 hours, then it ...
5
votes
0answers
8k views

Do I really need the PHP maxlifetime hourly cron job? [closed]

On my Debian Wheezy, every half-hour a cron job runs: find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -ignore_readdir_race -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/...
2
votes
3answers
1k views

What are the most common protocols on the internet? [closed]

For 69 views in the first day, 2 up-votes within 2 days, it's a shame that this was closed. What are the commonly used protocols that sit atop TCP/IP and UDP/IP? My list includes HTTP and BitTorrent....
0
votes
3answers
623 views

Does cpu consume power differently while executing instructions and while being idle?

Why does a CPU consume different quantities of power at 2Ghz when it is executing an instruction it is not executing any instruction Should'nt the CPU be consuming same power irrespective of ...
1
vote
2answers
1k views

How to mearsure the average cpu frequency in linux?

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 ...
0
votes
1answer
105 views

How do I change the minimum working frequency?

The file /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_frequency reads a value of 800 Mhz. The powertop tool also suggested that 800 Mhz w3as the minimum frequency being used. I changed the ...
3
votes
2answers
2k views

How can I use grep to find the most frequently recurring errors in my log file?

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 ...
5
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8answers
4k views

How often does your company replace all its servers? [closed]

Companies I have worked for replace them every 3 years
13
votes
2answers
21k views

Setting up multiple wireless access points on same network

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 ...