Airport process using 90%+ of CPU

I have a MacBook and for some reason, using the activity monitor I see Airport is using up almost one full core. I've tried rebooting and such and airport is always using a lot of CPU time. Its very annoying since all this processor usage is causing my fan in my Macbook to run at full throttle all of the time. I'm on a wireless G network with WPA.

I have a MacBook Pro and I am experiencing the same problem. After each reboot or wakeup a process called airport (probably /System/Library/PrivateFrameworks/Apple80211.framework/Versions/A/Resources/air port) takes up a lot of CPU.
I just kill the process. After a reboot, killing needs administrator rights, but then almost immediately the process starts again. Killing it again makes it go away till the next wakeup or reboot.
It seems that wakeup in the neighborhood of a WiFi base guarantees this problem. However, on the road out of reach of any base, I can usually wake up the machine without a problem.
Killing the process does not seem to interfere with correct functioning of airport in any way.
As said before: it eats away battery life and makes the machine uncomfortably hot. Apart from that, because a lot of CPU is being used by this process, it is very hard to resume your work after a wake up because the machine becomes very unresponsive.
As a temporary measurement, I launch activity monitor automatically. The amount of clicks to kill the process is then minimal. Still, it is annoying and makes me look clumpsy if I am rewaking my machine for a presentation or meeting.
PowerMac Cube/450 Mac OS X (10.4.8)

Similar Messages

"airport" process uses all of the memory an cpu

After I reinstalled my MacBook and updated to the latest version of Tiger (10.4.8) my airport network behaves very strange. When I boot my MacBook or disconnect/connect my Airport network a process called "airport" is consuming all the CPU and memory. It uses one core exclusivly and gows to 1,2 GByte of RAM (even more virtual Memory). This slows down the macbook to almost still and heats up the CPU.
The only thing I can do is to kill the process. Then everything works fine. But this is annoying.
It seems to make no difference if I use a wireless LAN or not. When airport is enabled then this bug occurs.

On this thread,
http://discussions.apple.com/thread.jspa?messageID=349
2852, people that have Check Point Software's
SecureClient are reporting the airport process using
~95% of CPU time.
I had SecureClient installed and I can confirm that
if you uninstall SecureClient, the airport process
works normally again. I don't know if this is the
only source of this problem, but if you happen to
have SecureClient, then you might want to uninstall
and confirm if this solves your problem.
Also I would be curious if anyone is having this
problem that has never had SecureClient, or any 3rd
party VPN software.
I can confirm that at least some of my problem with the "airport" process was related to VPN software. After uninstalling the Cisco VPN client, problems dramatically reduced. Interestingly, I still have the Checkpoint client installed, but only rarely see problems with "airport".
MBP 2.0 GHz Mac OS X (10.4.8)

Syslogd process uses all available cpu & console app won't run.

I have a Mac Mini (G4 power PC) running 10.5.5. Just recently after several minutes the system never wakes. It just shows the SBBOD. All I can do is hold down the power button and reboot. When the system reboots, using the activity monitor, I see that the process named syslogd uses all available cpu. I can still do things, but the cpu is saturated.
I took a snapshot of the syslogd process, and I can post it here if anyone thinks it might help.
If I activate the console application, the window comes up then hangs with the SBBOD.
The syslogd process uses all available cpu right after reboot, and does so regardless of which user (including root) is logged in. Attempting to kill the syslogd process with the activity monitor does nothing

Thanks! It took a long time for the disk utility to fix the permissions, but as soon as it did, the logger process calmed down. Looking at the log file now, I see it was my McAfee virus scan causing the logger to flip-out.
I'm now looking for a new MAC anti-virus program.

Spotlight endlessly indexing and mdworker process using lot of cpu

Hi, I just did Archive&Install from Tiger to Leopard, applied 10.5.1 and now...
...since THREE DAYS Spotlight is indexing giving strange values for time remaining (2.134.545.673 hours).
Like I found in other threads, I have the mdworked process absorbing a lot of cpu power and, from Console, maybe it's crashing repeatedly. I made private of lots of folders but the problem is still there.
Any other idea?
How can I find which file/application is freezing mdworker and making Spotlight so unuseful?
Thanks in advance
Tampano

I don't know. How much data is on your HD? Simplest thing to do is use the Terminal command mdutil to erase the current indexes and rebuild them. This should do it:
*sudo mdutil -E /Volumes/(asterisk)*
Launch the Terminal.app in /Applications/Utilities/, copy & paste that command into the window, hit the return key, enter your admin password at the Password: prompt (carefully because nothing shows up on the screen), and hit the return key again. That should erase the indexes and rebuild them.

Web browser processes use over 100% CPU (OS 10.6.8)

Hey, I know this problem has come up a lot in the last couple of years, but I've looked everywhere, at every thread and possible solution to my problem and none have ever worked, so as a last resort I'm going to just straight up ask bout again and hope I'm missing something.
So whenever anything on my browser is moving, wether it be Flash, HTML 5, Java or even an embedded video, on every browser I've tried from Opera to Safari and every time it will put two or three processes related to the browser up to 60%, usually amounting to over 120%. I have tried doing a fresh install of Snow Leopard, which only softened the problem for a small while. This problem, and a couple others started happening after the 10.6.8 update was installed. I have never installed Safar Extensions, I have fixed permissions, cleared caches, binned files, tried running Safari under 32-bit and 32-bit Rosetta.
Nothing works. After 20 seconds of a youtube video my macbook will freeze and ask me to hold down the power button. If I download the video through activity and play it in VLC it's fine. If I play it in Quicktime it's fine for 20 seconds and then the video stutters and slows right down before the audio stops and Quicktime refuses to play anything unless it's closed.
Among other problems caused by the update: Alt 3 is no longer hash, it just turns my cursor into a crosshair temporarily and MDS/MDworker sometimes randomly decide they're going to join in on the rogue processes for a while. I'm so close to having to sell a bunch of stuff in order to get a laptop so I can finish my uni course, it's particularly horrible knowing that I rely on my macbook for all my university work and gigs yet it's been letting me down so much.
Model Name:          MacBook
Model Identifier:          MacBook2,1
Processor Name:          Intel Core 2 Duo
Processor Speed:          1.83 GHz
Number Of Processors:          1
Total Number Of Cores:          2
L2 Cache:          2 MB
Memory:          2 GB

Oh, I posted this to the Macbook forum as it's ambiguous whether the update caused a hardware/software confliction, since a fresh install of Snow Leopard did not work.

How to kill Forms Runaway Process using 95% CPU and running for 2 hours.

We had a situation at E-Business Suite customer (using Oracle VM server) where some of Form processes were not being cleared by form timeout settings automatically.
Also when user exits the form session from front end, the linux form process (PID) and DB session did not exit properly, so they got hung.
They were spiking CPU and memory usage and causing e-business suite to perform slowely and ultimately causing VM host to reboot the production VM guest (running on Linux).
We could see the form processes (PIDs) using almost 100% cpu with "top" command and running for a long time.
Also we verified those Form Sessions did not exist in the application itself.
ie. Using from Grid Control -> OAM-> Site Map -> Monitoring (tab) -> "Form Sessions".
It means that we could safely kill that form process from Linux using "kill -9 <PID>" command.
But that required a continuous monitoring and manual DBA intervention as customer is 24x7 customer.
So, I wrote a shell script to do the following;
•     Cron job runs every half an hour 7 days a week which calls this shell script.
•     Shell script runs and tries to find "top two" f60webmx processes (form sessions) using over 95% cpu with 2 minutes interval.
•     If no process is found or CPU% is less than 95%, it exits and does nothing.
•     If top process is found, it searches for its DB session using apps login (with hidden apps password file - /home/applmgr/.pwd).
a.     If DB session is NOT found (which means form process is hung), it kills the process from unix and emails results to <[email protected]>
b.     If DB session is found, it waits for 2 hours so that form process times automatically via form session timeout setting.
It also emails the SQL to check the DB session for that form process.
c.     If DB session is found and it does not timeout after 2 hours,
it kills the process from unix (which in turn kills the DB session). Output is emailed.
This are the files required for this;
1. Cron job which calls the shell script looks like this;
# Kill form runaway process, using over 95% cpu having no DB session or DB session for > 2hrs
00,30 * * * * /home/applmgr/forms_runaway.sh 2>&1
2. SQL that this script calls is /home/applmgr/frm_runaway.sql and looks like;
set head off
set verify off
set feedback off
set pagesize 0
define form_client_PID = &1
select count(*) from v$session s , v$process p, FND_FORM_SESSIONS_V f where S.AUDSID=f.audsid and p.addr=s.paddr and s.process='&form_client_PID';
3. Actual shell script is /home/applmgr/forms_runaway.sh and looks like;
# Author : Amandeep Singh
# Description : Kills runaway form processes using more than 95% cpu
# and Form Session with no DB session or DB session > 2hrs
# Dated : 11-April-2012
#!/bin/bash
. /home/applmgr/.bash_profile
PWD=`cat ~/.pwd`
export PWD
echo "`date`">/tmp/runaway_forms.log
echo "----------------------------------">>/tmp/runaway_forms.log
VAR1=`top -b -u applmgr -n 1|grep f60webmx|grep -v sh|grep -v awk|grep -v top|sort -nrk9|head -2|sed 's/^[ \t]*//;s/[ \t]*$//'| awk '{ if ($9 > 95 && $12 = "f60webmx") print $1 " "$9 " "$11 " "$12; }'`
PID1=`echo $VAR1|awk '{print $1}'`
CPU1=`echo $VAR1|awk '{print $2}'`
TIME1=`echo $VAR1|awk '{print $3}'`
PROG1=`echo $VAR1|awk '{print $4}'`
PID_1=`echo $VAR1|awk '{print $5}'`
CPU_1=`echo $VAR1|awk '{print $6}'`
TIME_1=`echo $VAR1|awk '{print $7}'`
PROG_1=`echo $VAR1|awk '{print $8}'`
echo "PID1="$PID1", CPU%="$CPU1", Running Time="$TIME1", Program="$PROG1>>/tmp/runaway_forms.log
echo "PID_1="$PID_1", CPU%="$CPU_1", Running Time="$TIME_1", Program="$PROG_1>>/tmp/runaway_forms.log
echo " ">>/tmp/runaway_forms.log
sleep 120
echo "`date`">>/tmp/runaway_forms.log
echo "----------------------------------">>/tmp/runaway_forms.log
VAR2=`top -b -u applmgr -n 1|grep f60webmx|grep -v sh|grep -v awk|grep -v top|sort -nrk9|head -2|sed 's/^[ \t]*//;s/[ \t]*$//'| awk '{ if ($9 > 95 && $12 = "f60webmx") print $1 " "$9 " "$11 " "$12; }'`
PID2=`echo $VAR2|awk '{print $1}'`
CPU2=`echo $VAR2|awk '{print $2}'`
TIME2=`echo $VAR2|awk '{print $3}'`
PROG2=`echo $VAR2|awk '{print $4}'`
PID_2=`echo $VAR2|awk '{print $5}'`
CPU_2=`echo $VAR2|awk '{print $6}'`
TIME_2=`echo $VAR2|awk '{print $7}'`
PROG_2=`echo $VAR2|awk '{print $8}'`
HRS=`echo $TIME1|cut -d: -f1`
exprHRS=`expr "$HRS"`
echo "PID2="$PID2", CPU%="$CPU2", Running Time="$TIME2", Program="$PROG2>>/tmp/runaway_forms.log
echo "PID_2="$PID_2", CPU%="$CPU_2", Running Time="$TIME_2", Program="$PROG_2>>/tmp/runaway_forms.log
echo " ">>/tmp/runaway_forms.log
# If PID1 or PID2 is NULL
if [ -z ${PID1} ] || [ -z ${PID2} ]
then
echo "no top processes found. Either PID is NULL OR CPU% is less than 95%. Exiting...">>/tmp/runaway_forms.log
elif
# If PID1 is equal to PID2 or PID1=PID_2 or PID_1=PID2 or PID_1=PID_2
[ ${PID1} -eq ${PID2} ] || [ ${PID1} -eq ${PID_2} ] || [ ${PID_1} -eq ${PID2} ] || [ ${PID_1} -eq ${PID_2} ];
then
DB_SESSION=`$ORACLE_HOME/bin/sqlplus -S apps/$PWD @/home/applmgr/frm_runaway.sql $PID1 << EOF
EOF`
echo " ">>/tmp/runaway_forms.log
echo "DB_SESSION ="$DB_SESSION >>/tmp/runaway_forms.log
# if no DB session found for PID
if [ $DB_SESSION -eq 0 ] then
echo " ">>/tmp/runaway_forms.log
echo "Killed Following Runaway Forms Process:">>/tmp/runaway_forms.log
echo "-------------------------------------------------------------------">>/tmp/runaway_forms.log
echo "PID="$PID1", CPU%="$CPU1", Running Time="$TIME1", Program="$PROG1>>/tmp/runaway_forms.log
kill -9 $PID1
#Email the output
mailx -s "Killed: `hostname -a` Runaway Form Processes" [email protected] </tmp/runaway_forms.log
cat /tmp/runaway_forms.log
else
# If DB session exists for PID
if [ ${exprHRS} -gt 120 ]; then
echo $DB_SESSION "of Database sessions exist for this forms process-PID="$PID1". But its running for more than 2 hours. ">>/tmp/runaway_forms.log
echo "Process running time is "$exprHRS" minutes.">>/tmp/runaway_forms.log
echo "Killed Following Runaway Forms Process:">>/tmp/runaway_forms.log
echo "-------------------------------------------------------------------">>/tmp/runaway_forms.log
echo "PID="$PID1", CPU%="$CPU1", Running Time="$TIME1", Program="$PROG1>>/tmp/runaway_forms.log
kill -9 $PID1
#Email the output
mailx -s "`hostname -a`: Runaway Form Processes" [email protected] </tmp/runaway_forms.log
cat /tmp/runaway_forms.log
else
echo "Process running time is "$exprHRS" minutes.">>/tmp/runaway_forms.log
echo $DB_SESSION "of Database sessions exist for PID="$PID1" and is less than 2 hours old. Not killing...">>/tmp/runaway_forms.log
echo "For more details on this PID, run following SQL query;">>/tmp/runaway_forms.log
echo "-----------------------------------------------------------------------">>/tmp/runaway_forms.log
echo "set pages 9999 lines 150">>/tmp/runaway_forms.log
echo "select f.user_form_name, f.user_name, p.spid DB_OS_ID , s.process client_os_id,, s.audsid, f.PROCESS_SPID Forms_SPID,">>/tmp/runaway_forms.log
echo "to_char(s.logon_time,'DD-Mon-YY hh:mi:ss'), s.seconds_in_wait">>/tmp/runaway_forms.log
echo "from v\$session s , v\$process p, FND_FORM_SESSIONS_V f">>/tmp/runaway_forms.log
echo "where S.AUDSID=f.audsid and p.addr=s.paddr and s.process='"$PID1"' order by p.spid;">>/tmp/runaway_forms.log
mailx -s "`hostname -a`: Runaway Form Processes" [email protected] </tmp/runaway_forms.log
cat /tmp/runaway_forms.log
fi
fi
else
#if PID1 and PID2 are not equal or CPU% is less than 95%.
echo "No unique CPU hogging form processes found. Exiting...">>/tmp/runaway_forms.log
cat /tmp/runaway_forms.log
fi
If you have the same problem with some other unix and DB processes, the script can be easily modified and used.
But use this with thorough testing first (by commenting out <kill -9 $PID1> lines.
Good luck.
Edited by: R12_AppsDBA on 19/04/2012 13:10

Thanks for sharing the script!
Hussein

Airport process consuming 90-100% of cpu time

I have first gen Macbook Pro, 2Ghz. Just in the last day or so, I've noticed that the "airport" process is pretty well using up one of my CPU cores. I can kill it and I don't notice any problems.
I have read the article explaining that third party VPN software can cause this, but I have no such software installed.
edit: I've noticed that it does this when first booted. If I use airport status in the menu bar to turn off the airport card and then turn it back on, the cpu usage goes back down. Anyone know what might cause this?
Macbook Pro Mac OS X (10.4.9)

I have first gen Macbook Pro, 2Ghz. Just in the last day or so, I've noticed that the "airport" process is pretty well using up one of my CPU cores. I can kill it and I don't notice any problems.
I have read the article explaining that third party VPN software can cause this, but I have no such software installed.
edit: I've noticed that it does this when first booted. If I use airport status in the menu bar to turn off the airport card and then turn it back on, the cpu usage goes back down. Anyone know what might cause this?
Macbook Pro Mac OS X (10.4.9)

Airport Process utilizing high CPU utilization

I currently have a 13 inch MacBook Pro i7 (2012 version). Recently I upgraded to Mavericks. After using the computer for a day after the upgrade, I began to notice it becoming very hot and the fans running very high. Looking at the running processes i noticed that a process called "airport" was running and utilizing high CPU times causing the heating up and fans running. Once I stopped this process, the laptop went back to operating at normal levels.
Unfortunately this issue began to come back several times....the "airport" process starting at any time and utilizing high CPU utilization....again only by killing this process fixed this issue.
After seeing this behavior over several days, I decised to wipe the drive and install a clean copy of Mavericks in the computer. Thought here was that possibly something did not carry over correctly from the upgrade from Mountain Lion to Mavericks. Unfortunely this did not correct the issue with the "airport" process as it still is continiung to launch at any time and spike the processor until I manually kill the process.
I do not recall this issue occuring while running Mountain Lion so it seems to be specific to Mavericks at this point.
I was hoping to hear if any other have experienced this type of issues while running Mavericks.

You should be able to find the information you are looking for from the default Total CPU Utilization Percentage monitor. This monitor has a built in diagnostic task that will kick off when an alert is triggered to list the top cpu consuming processes.
To find which processes were causing CPU to spike, simply review the State Change Events history in health explorer for the machine that was affected, for the Total CPU Utilization Percentage monitor. I have modified my second screen shot
to remove machine names, but you should get the idea. If a cpu monitor went from green to red, it will run the diagnostic task and list the process information and cpu usage at the time of the alert under state change events.

'airport' process chewing up CPU on boot?

I'm having a weird problem. I've had my MacBook for about a month, but this problem has only been happening in the last few days. Before I begin, I'm 100% up to date and repaired permissions.
When I boot up my computer, the fans start going full speed and don't seem to slow down. I open up the activity monitor and sort my processor usage. At around 98%, a process called airport is chewing up the CPU. I end up having to Force Quit to make it stop and to make the computer cool off. Oddly enough the actual AirPort Express still works with this process killed.
What is this process? Why does it run near 100%? Is it okay for me to kill it? What can I do to prevent this from happening on every boot?

Analysis of sampling pid 122 every 10.000000 milliseconds
Call graph:
300 Thread_0f07
300 0x287d
300 0x2956
300 0x43ca
300 CFRunLoopRun
300 CFRunLoopRunSpecific
300 __CFMachPortPerform
300 0x459b
300 0x3f1f
300 0x2ad0
300 0x926a
300 0x166b5
174 ioctl
174 ioctl
115 0x1953a
28 0x17d69
28 ether_ntoa
28 sprintf
23 __vfprintf
11 __sfvwrite
7 __sfvwrite
4 __memcpy
4 __memcpy
11 __vfprintf
1 memcpy
1 memcpy
4 __bzero
4 __bzero
1 localeconv_l
1 localeconv_l
22 0x17c6f
22 __CFDictionaryInit
11 _CFRuntimeCreateInstance
6 malloczonemalloc
6 szone_malloc
6 szone_malloc
2 _CFRuntimeCreateInstance
1 CFAllocatorAllocate
1 CFAllocatorAllocate
1 _i686.get_pcthunk.bx
1 _i686.get_pcthunk.bx
1 szone_malloc
1 szone_malloc
7 pthread_getspecific
7 pthread_getspecific
3 __CFDictionaryInit
1 malloczonemalloc
1 malloczonemalloc
11 0x184ec
10 _CFRelease
4 _CFRelease
3 szone_free
3 szone_free
2 __CFDataDeallocate
2 __CFDataDeallocate
1 CFAllocatorDeallocate
1 CFAllocatorDeallocate
1 _spinlock
1 _spinlock
10 0x17d9f
10 CFStringCreateWithCString
7 __CFStringCreateImmutableFunnel3
4 __CFStringCreateImmutableFunnel3
3 _CFRuntimeCreateInstance
3 _CFRuntimeCreateInstance
2 memmove
2 memmove
1 CFStringCreateWithCString
10 0x184fd
9 _CFRelease
9 szone_free
9 szone_free
1 _spinlock
1 _spinlock
8 0x17d46
8 __CFDataInit
5 _CFRuntimeCreateInstance
3 malloczonemalloc
3 szone_malloc
3 szone_malloc
2 _CFRuntimeCreateInstance
2 __CFDataInit
1 CFDataReplaceBytes
1 CFDataReplaceBytes
7 0x17d07
5 CFStringCreateWithBytes
3 __CFStringCreateImmutableFunnel3
2 CFRetain
2 CFRetain
1 _spinlock
1 _spinlock
1 CFRetain
1 CFRetain
1 pthread_getspecific
1 pthread_getspecific
2 __CFStringCreateImmutableFunnel3
2 __CFStringCreateImmutableFunnel3
5 CFStringCreateWithBytes
5 CFStringCreateWithBytes
4 0x184ca
2 _CFRelease
1 __CFDictionaryDeallocate
1 __CFDictionaryDeallocate
1 szone_free
1 szone_free
1 __CFDictionaryDeallocate
1 __CFDictionaryDeallocate
1 __CFZombifyDeallocatedMemory
1 __CFZombifyDeallocatedMemory
1 0x17ccd
1 0x17ccd
1 0x17cd4
1 0x17cd4
1 0x17d26
1 0x17d26
1 0x17d3e
1 0x17d3e
1 0x184bd
1 0x184bd
1 0x18514
1 0x18514
1 0x1851f
1 _CFRelease
1 _CFRelease
1 CFDictionaryCreateMutable
1 CFDictionaryCreateMutable
1 CFStringCreateWithCString
1 CFStringCreateWithCString
1 ether_ntoa
1 ether_ntoa
5 0x1957c
5 __bzero
5 __bzero
4 0x195a7
4 0x195a7
2 0x195aa
2 0x195aa
Total number in stack (recursive counted multiple, when >=5):
Sort by top of stack, same collapsed (when >= 5):
ioctl 174
szone_free 13
__vfprintf 11
szone_malloc 10
__bzero 9
pthread_getspecific 8
_CFRuntimeCreateInstance 7
__sfvwrite 7
__CFStringCreateImmutableFunnel3 6
CFStringCreateWithBytes 5
_CFRelease 5
Sample analysis of process 122 written to file /dev/stdout
Sampling process 122 each 10 msecs 300 times

J2EE Processes using 25% CPU load without load

Hi
We are running a Portal cluster with 2 cluster application nodes with each 2 J2EE server processes and a dispatcher.
We experiences that after some time the J2EE server processes can start using typical 25% CPU without any load on the portal - after some time the load typically increase to approx. 50% CPU (still without user load) and the only "solution" is to restart the processes.
Anyone you have experienced a similar behaviour?
BR
Tom

Are you doing load balancing too somewhere?
I though I read somewhere about some replication between nodes that goes on. If they transfer their information and drop it, that is fine. But they don't. On the next round they exchange the new info and info from the last time. It just grows. Look at you DB server, check to see if one of the DB's grows with the CPU load.
The other thing is logging. I am a log freak myself but, sometimes I get into trouble by logging too much. Next time your CPU loads check *.log and temp logs, see if there are any over 10 gig.
Not that I never had one,
no,
never.

Ruby Process using 80% or more CPU

Granted, I'm running Leopard Server on an old machine, but still. they Ruby process is keeping the CPU pretty well pinned, as it regularly uses more that 80% CPU.
Is it doing OS work, or can I disable it if I am not using it? Any ideas on how?
CK

https://discussions.apple.com/message/23685234?tstart=0#23685234
Hope this helps you!!
Stuart

Nmbd process using up 80+% of my CPU

Since upgrading to 10.5.5 my MacBook pro's fans have been going wild running at 5,000+ rpm. Looking in Activity monitor I see nmbd process hogging all my CPU. Can I safely kill this?
thanks.

Ok it started doing it again so the Samba install wasn't the real fix, must have just been lucky at the time.
I manually quit the process using Activity Monitor and immediately the fans slowed right down. But within about 1.5mins the process restarts automatically and the fans go full speed again.
This is really bugging me now, and killing my battery time when the fans are maxed out. Any more ideas?
Can I stop the service restarting? Do I need this service?
Message was edited by: FlatDog

Why can't I make Lightroom use all the CPU-Power (all cores) available for generating Previews?

Dear Lightroom Team,
I've been a Lightroom user since the very first Beta, and I am truly happy with the work you deliver. It changed my way of editing forever, and you guys keep improving it.
Yet there is that one question that bothers me, and that i'm looking for an answer for.
My Workflow has the generate Previews checkbox checked by standard. I usually import between 150 and 2000 photos at once, on occaions it can be up to 5000 photos. Generating Previews always takes a significant amount of time, and Lightroom is only using 25% of my CPU Power while doing so. (using a MacBook Pro 8,2)
I understand the concept, that only using 25% CPU enables me to use the computer while waiting for the Previews. But most of the time I just grab myself a cup of coffee, do the dishes or other stuff, while waiting for the Previews. Usually I rund out of things to do, because it takes ages to Process all the photos. So I would really love to make Lightroom use ALL the cpu power possible.
I'm sure you guys have spent a lot of thoughts while coding this and have a very good answer handy. Looking forward reading it!
all the best,
Wolfgang

Wolfgang Lienbacher wrote:
I was actually hoping to get an official reply from adobe ...
This is prmarily a user-to-user forum. The Adobe staff monitored site is here:
http://feedback.photoshop.com/photoshop_family
On my four-year old Windows 7 i7-860 system LR4.4.1 takes ~0.5 sec. per Canon 5D MKII 21Mp raw image to render 'Standard-Sized' previews with LR Catalog Settings 'Standard Preview Size' set to '2048' pixels. I consider that pretty fast!
I usually build 1:1 full-size previews on import, which takes ~5.0 sec. per image. Processor utilization varies between 15-50% for Standard-Sized previews and 15-65% for 1:1 previews. I consider this pretty slow, but it doesn't stop me from working on the images inside LR's Library and Develop modules.
I wait until 'Copy and import photos' has completed and can see Preview Building has started. LR doesn't slow-down much even with the 1:1 preview building going on in the background. Have you tried working in LR during the preview building (i.e. sorting, rating, keywording, and Develop adjustments)?

Process Using too much Processor

Hi all !
I have a real wierd request.
I have a process which runs for about a hour converting files. The process only between 10 and 15MB of memory which is fine. The problem is that the process uses basically all the processing power available on the server. My administrator is worried that if another process is started whie mine is running it will not receive a share of the processor . Even though I have told him (and showed him) that the java app releases some of the processor when another program requests it.
Is there anyway of specifying the percentage of processor a java app uses ? For example I would like to tell the app to only use 50% of the available processor !
Robin

How computationally intensive is the conversion? Are they small files that require sophisticated processing? Or are they large files that are processed in a simple way?
I'm asking because it's very unusual for a process that does significant I/O to peg the CPU. The fact that it does may point to a bug in the code.

Logic 8 using only one CPU while bouncing

Whenever I bounce a project, Logic 8 uses only one CPU. It also spikes this CPU completely, with the CPU meter going into the red area, which is why I am rather keen on persuading Logic to distribute the load.
Any ideas?
(I've given the support document with tips on how to balance multi-core performance a good read, but it doesn't seem to say anything on this particular subject, and following the advice in the document does nothing to change my CPU load.)

Bouncing is a single core process. Just like rendering is in Final Cut Pro. This won't change until Leopard and Apple's ProApps get better at handling multiple cores.
It's redlining because the processor core is working as fast as it can. Computer processors don't just randomly run slower, they use their resources for the tasks at hand. If it only used 50% of a core, the bounce would take twice as long to process.

Airport process using 90%+ of CPU

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