Lion is running much hotter then snow leopard. At Idle I am about 30 degrees F higher then before. And tends to escalate extremely fast from there. Any one else noticing similar trends? Or an idea on how to solve it?
MacBook Pro 2.2ghz i7-OTHER, Mac OS X (10.5.7)
A Mac with a fresh installation of Lion can run hot for a while until Spotlight finishes reindexing all the new content. This can take up to an hour.
Look at the Activity Monitor, my problem was a process from my Western Digital external drive (WDSmartWareD), maybe the process try to run unsuccessfully because Lion... I just got to /Library/Application Support/WDSmartWare/Backup/Daemons/WDSmartWareD and delete the file, and voilà..
To all of you having consistent heat problems, try the following two commands in terminal (I have included a sample of my results
ps -arcwwwxo "command %cpu %mem" | grep -v grep | head -13
COMMAND %CPU %MEM
firefox-bin 5.3 10.8
WebProcess 3.1 4.4
WindowServer 0.4 2.6
Terminal 0.3 0.4
parentalcontrols 0.1 0.2
login 0.0 0.0
launchdadd 0.0 0.0
mdworker 0.0 0.1
quicklookd 0.0 0.2
mdworker 0.0 0.3
LKDCHelper 0.0 0.0
Safari 0.0 1.5
uptime
14:56 up 1 day, 4:15, 2 users, load averages: 0.78 0.87 0.95
If I am guessing correctly - as long as you know spotlight has finished indexing - your load should be below 1 most of the time, and you shouldn't have any processes that are consistently sitting at high values.
Take a sampling over half an hour if you can't identify anything and see if anythign is consistent.
I found on mine, that I had a cisco agent that was using up 90% of the CPU constantly - ramping my temp, and as a result - my fans. Mine is a Late 09 MBP - 15" 3.06 C2D and with the commands above, my CPU temp is sitting at 48 deg.
Those two commands are refreshed every min or so on my desktop using geektool so I can keep an eye on use.
Lion is running extremely hot. I have been running the new OS for 3 days now on my mid 09 MBP and I constatnly moniter my CPU and RAM usage because if it goes anywhere past 2gb it sounds like the computer is about to explode.
Snow leopard never did this.
My Mountain Lion heat problem was due to "diskarbitrationd" running at 100% CPU. There was an "mtmfs" mount... A time machine local snapshot was happening (despite my time capsule being available and aok... odd). The fix for me was to run the following in Terminal as root:
tmutil disablelocal
Lion Running Hot
