Dock uses lots of CPU time

I find Dock uses ~140% CPU time sometimes, I can't see a cause for it to do so. It usually stops of its own accord after a random amount of time. Killing it doesn't help, launchd restarts it and it goes back to using lots of CPU.
I have parallels install and I have the version which has the fix (6.0.12106) and I have also tried the work around (no luck obviously).

Never mind, I figured it out by myself. On this particular machine I had a 3rd party plug-in installed (SRS iWow 1.1.8). Removing that brought the CPU usage down to 0.1%. Usually I don't install 3rd party add-ons. This would seem to be a good policy.
Steve

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ITunes uses lots of CPU time when idle

When iTunes is just sitting there with my Music Library displayed, Activity Monitor shows it's using a pretty consistent 22-25% of CPU time. I look at Activity Monitor once in a while and I've never noticed this before. I don't know if it started when I upgraded to iTunes 7.4.2 or not. Other Macs I have access to use close to 0%. I have repaired permissions, checked the hard drive, and waved the other dead chickens over it without any change. Obviously this soaks up a lot of machine resources. Any clues or ideas would be welcome.
Steve

Never mind, I figured it out by myself. On this particular machine I had a 3rd party plug-in installed (SRS iWow 1.1.8). Removing that brought the CPU usage down to 0.1%. Usually I don't install 3rd party add-ons. This would seem to be a good policy.
Steve

IPhoto uses lots of CPU time while idle

I run iPhoto '08 (7.0.2) on a G4 iMac that I use as a photo and music server. Today I was using the computer to rip some CDs and scan the covers and the computer seemed sluggish. I checked Activity Monitor and saw that iPhoto was using between 20 and 60% of the CPU time even though it was hidden and hadn't been active for at least a day. When I activated iPhoto it went back down to 1% or less. I hid it and it remained at 1% or less for a while, but after about 15 minutes it shot back up to 20-60%. Any ideas as to what might be going on?

I seem to find that both iPhoto and Safari grow in virtual memory used and CPU used as time goes by so I try to restart each of them every couple of days and he whole computer at least once a week (no it shouldn't be necessary -- but at least it is still better than windows)
Larry Nebel

[Solved] embedded videos in firefox take a lot of CPU time

Playing embeded videos in Firefox take a lot of CPU time. Actually my old computer is not able to play these videos correctly if they are in HD. The problem appears with flash videos (not so surprising, flash sucks...) but also with html5 videos (there is an option in youtube to turn that on). However if I succeed to have the direct URL, these videos play perfecrtlky fine in mplayer using not more than 10-20% of CPU time. Is there a solution to that? Is there any possibility to use an external player to play HTML5 videos in firefox? If anybody knows, Why this problem, are the mozilla folk aware of this problem? (Note that I posted a thread a long time ago for this problem but concerning flash only)
Last edited by olive (2012-04-27 20:33:59)

There's not much you can do to make HTML5 videos as fast as Xv, see http://swfdec.freedesktop.org/wiki/FAQ. They are slow for the same basic reason as Flash... the video overlay cannot be used because the standard allows for controls and CSS to be rendered on top of the video.
As for redirecting to an external player... this is not as easy as it could be. If the videos appeared in <embed> tags or <object> tags, one could use Mozplugger, Media Player Connectivity and other programs, but I don't think one has been written to handle the <video> tag. An upcoming update to firefox will make it use gstreamer, however. If this still results in slow playback, it will at least make it easier to use an external player. I imagine you would have to patch firefox to make it use a port on the localhost as the video sink instead of the screen. Then you would run gst-launch to receive that RTP stream.

CORBA - tnameserv uses too much CPU time

The tnameserv we are using from JDK 1.3 uses a lot of CPU time.
Anyone has advice on it?>
Thanks in advance.

I think if you want commercial performance you need to purchase a commercial product like Visibroker.

Thread.sleep takes a lot of CPU time!

Hi,
I have the run method like this:
public void run()
while(true)
//some set of operations
Thread.sleep(5*1000*60);
The above code's performance was measured under stress test. . The sleep operation seems to take a lot of CPU time
though ideally sleep is like a no-operation mode, meaning since no operation
is done when a thread sleeps, it should not use any/minimal CPU time.
But it seems to take over 30% of CPU time!
Any ideas on why such a weird thing's happening?
In fact, in one more similar method also, sleep is taking similar CPU
time.

A sleeping thread uses no CPU. Try the following, both with and without the for loop. If you see a constant high CPU usage, even when the thread is sleeping, it's probably that the CPU usage is measured as an average over the last second or several seconds, so when the tasks you're performing are intense and take a significant fraction of the time you're sleeping, the average CPU usage doesn't go down that much.
public class Sleeper {
    public static void main(String[] args) throws Exception {
        while(true) {
            for (int ix = 0; ix < 100000000; ix++) {
                int jx = ix * 2;
                ix = --jx;
            Thread.sleep(5 * 1000* 60);
}

Apple mobile device service uses too much cpu time

Apple mobile device service uses too much cpu time, from 88% to 99% of the CPU time.

The best way to fix this is to completely remove all aspects of iTunes then reinstall. Step by step directions are on this article. Good luck
http://support.apple.com/kb/HT1925?viewlocale=en_US

Syslogd daemon take lot of cpu time arounf 50% of cpu utilization.

syslogd daemon problem it take lot of cpu time arounf 50% of cpu utilization. How do i solve this issue without reboot.

You can try then a "/etc/init.d/syslog stop" and "/etc/init.d/syslog start"
This is only a solution which perhaps will solve your load problem. But obviously
you should investigate why you have this strange behavior.
Grouch_fr
Edited by: Groucho_fr on Mar 17, 2009 2:19 AM

Dock using too much CPU

After I did the security update to 10.5.1, the Dock process has started acting strangely on my MacBook. About once every 10 seconds or so, the Dock suddenly takes >50% of the CPU which causes the system to hickup and sometimes causes audio or video to studder. I don't seem to have this problem with my MacBook Pro. Anyone else seen this? Any ideas how to fix it? I've tried force quitting the Dock as well as trashing com.apple.dock.plist. I've also tried dragging all of the icons off of the dock, then rebuilding it from scratch.
thanks in advance for the help.
chad

I found the issue with this. I had the background image set to change every 5 seconds on my 2nd monitor. Apparently the Dock process is what actually changes that image so it was using a lot of CPU everytime it changed. Changing the image rate to once every minute seems to have fixed this.

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.

Advanced queue taking a lot of CPU time

hi ,
My application has a workflow which dequeues messages from an advanced queue.The message is simple text message. But i am facing CPU time problems. when the workflow( one of the steps is to dequeue) runs it uses 100% of a particular CPU.
can somebody throw some light on the things to implement to reduce CPU time and why i am having this problem.
also , i am using the TOP command on UNIX to trace the process.Does it give us the correct CPU usage measure?suggest some more specific measures , if any.
Thanks in Advance

Hi,
I came across tip for speeding up OpenLdap a while ago, I have never tested it as I have never found the need to but here it is :-
Stop the OpenLdap service
Open slapd.conf which is under SharedServices\openLDAP\
Locate
*# Indices to maintain*
index objectClass eq
index cn,ou,cssIdentity,member,cssRoleDN,cssProductCode,cssVersion eq
index cssDisplayNameDefault eq,sub
and add
index uniqueMember eq
Save/Close
run slapindex.exe -f c:\<location to slapd.conf>\slapd.conf
Start up OpenLdap service again.
Though this doesn't explain the reason why you are suddenly getting performance issues, do you have a large amount of native users/groups ?
If you are on 9.3.1 have you tried Sync Native Directory from Shared Services.
Cheers
John
http://john-goodwin.blogspot.com/

Kpowersave and hald use alot of cpu-time

I having some big problems with Kpowersave (0.7.3-1 from aur) and hald start using around 60% of my cpu-time, and will continue to do so until i restart the Kpowersave process.
This seems to happend randomly, but around every second hour or something.
It also seems like conky for example starts to take more cpu-time (like 10%) at the same time... Suggest that Kpowersave isnt the one to blame?
The computer is a Dell XPS m1330 with a Intel core 2 duo T7500 cpu.
Don't know what more information to supply, and where to start looking. Anyone understand the problem, and have an idea where to start searching?
Excuse my poor english.

i would use klaptop-daemon, i'm finding it more usefull and customizable, not quiet a fix for your problem, but using another program would maybe do the trick as well, klaptop-daemon is in the aur repositories

T420s: Conexant Audio Message Service consumes a lot of CPU time in Windows 8

Hi,
I have here two models of T420s running Windows 7 and Windows 8.
The Windows 7 model is quiet and the Service Needs no cpu time during idle.
The Windows 8 model is noisy (the fan is Spinning) and the Conexant Audio Message Service (Version 1.6.0.0) is consuming 30% of cpu during idle.
Any suggestions?
Solved!
Go to Solution.

Pretty sure you can just disable the service. I did on my W520 with no ill effects.
W520: i7-2720QM, Q2000M at 1080/688/1376, 21GB RAM, 500GB + 750GB HDD, FHD screen
X61T: L7500, 3GB RAM, 500GB HDD, XGA screen, Ultrabase
Y3P: 5Y70, 8GB RAM, 256GB SSD, QHD+ screen

SLAPD.EXE taking a lot of CPU Time

Hi all,
I'm getting this stange issue on our Dev Boxes, when trying to launch a business rule, a process called slapd.exe (Open Ldap) takes up to 50 / 60 % of CPU time and it takes about 1 to 2 min for the prompts on the business rules to appear.
The system just seems to hang ...
Please let me know if you know how to resolve this,
Cheers,
Jeremie

Hi,
I came across tip for speeding up OpenLdap a while ago, I have never tested it as I have never found the need to but here it is :-
Stop the OpenLdap service
Open slapd.conf which is under SharedServices\openLDAP\
Locate
*# Indices to maintain*
index objectClass eq
index cn,ou,cssIdentity,member,cssRoleDN,cssProductCode,cssVersion eq
index cssDisplayNameDefault eq,sub
and add
index uniqueMember eq
Save/Close
run slapindex.exe -f c:\<location to slapd.conf>\slapd.conf
Start up OpenLdap service again.
Though this doesn't explain the reason why you are suddenly getting performance issues, do you have a large amount of native users/groups ?
If you are on 9.3.1 have you tried Sync Native Directory from Shared Services.
Cheers
John
http://john-goodwin.blogspot.com/

Sockd process uses a lot of CPU time

Hi,
I'm running the Sun Java System Web Proxy Server version 4.02 on a SunFire V210 dual processor box running Solaris 10 with the default socks5.conf for testing.
Just browsing a few web pages in Firefox or IE using the socks proxy boosts CPU usage from the sockd process to a staggering 50% and stay there for several minutes.
Comparing with the old NEC reference Socks5 daemon the Sun version is really performing badly.
The system is pretty standard though I have tuned /etc/system and the tcp stack using recommendations in the proxy administration manual. All Solaris 10 patches are installed.
prstat output:
   PID USERNAME SIZE   RSS STATE PRI NICE      TIME CPU PROCESS/NLWP
24519 proxy    6664K 4384K cpu1     0   10   0:11:18 50% sockd/43Any ideas what's wrong or do I have to stick with the old NEC reference daemon?
Regards
Kasper L�vschall

Using:
truss -dlfo truss.out ./sockd-wdog
Where things begin to happen:
5259/1:          11.2858     lwp_park(0xFFBFF290, 0)                    Err#62 ETIME
5259/1:          12.2958     lwp_park(0xFFBFF290, 0)                    Err#62 ETIME
5259/1:          13.3058     lwp_park(0xFFBFF290, 0)                    Err#62 ETIME
5259/1:          14.3158     lwp_park(0xFFBFF290, 0)                    Err#62 ETIME
5259/2:          15.1858     pollsys(0xFEAEFDC8, 1, 0xFEAEFD58, 0x00000000)     = 0
5259/1:          15.3258     lwp_park(0xFFBFF290, 0)                    Err#62 ETIME
5259/2:          pollsys(0xFEAEFDC8, 1, 0xFEAEFD58, 0x00000000) (sleeping...)
5259/1:          lwp_park(0xFFBFF290, 0)          (sleeping...)
5259/1:          16.3359     lwp_park(0xFFBFF290, 0)                    Err#62 ETIME
5259/1:          lwp_park(0xFFBFF290, 0)          (sleeping...)
5259/1:          17.3459     lwp_park(0xFFBFF290, 0)                    Err#62 ETIME
5259/2:          18.2382     pollsys(0xFEAEFDC8, 1, 0xFEAEFD58, 0x00000000)     = 1
5259/2:          18.2385     accept(3, 0xFEAEFEC8, 0xFEAEFE64, SOV_DEFAULT)     = 5
5259/2:          18.2386     lwp_unpark(43)                         = 0
5259/43:     18.2386     lwp_park(0x00000000, 0)                    = 0
5259/2:          18.2388     accept(3, 0xFEAEFEC8, 0xFEAEFE64, SOV_DEFAULT)     Err#11 EAGAIN
5259/43:     18.2389     getsockname(5, 0xFE5AFEA8, 0xFE5AFDA4, SOV_DEFAULT) = 0
5259/43:     18.2391     getpeername(5, 0xFE5AFE38, 0xFE5AFDA4, SOV_DEFAULT) = 0
5259/43:     18.2391     read(5, 0x00063B7E, 1)                    Err#11 EAGAIN
5259/43:     18.2407     pollsys(0xFE5AFD08, 1, 0xFE5AFCA0, 0x00000000)     = 1
5259/43:     18.2408     read(5, "04", 1)                    = 1
5259/43:     18.2409     read(5, "01\0 P BF9 ] c", 7)               = 7
5259/43:     18.2411     read(5, " k l\0", 255)                    = 3
5259/43:     18.2412     write(4, " [ 0 1 / M a r / 2 0 0 6".., 88)     = 88
5259/43:     18.2413     so_socket(PF_INET, SOCK_STREAM, IPPROTO_IP, "", SOV_DEFAULT) = 6
5259/43:     18.2414     fcntl(6, F_GETFL)                    = 2
5259/43:     18.2415     fcntl(6, F_SETFL, FWRITE|FNONBLOCK)          = 0
5259/43:     18.2416     bind(6, 0xFE5AF980, 16, SOV_SOCKBSD)          = 0
5259/43:     18.2418     connect(6, 0xFE5AF910, 16, SOV_DEFAULT)          Err#150 EINPROGRESS
5259/43:     18.2970     pollsys(0xFE5AF798, 1, 0xFE5AF730, 0x00000000)     = 1
5259/43:     18.2971     getsockopt(6, SOL_SOCKET, SO_ERROR, 0xFE5AF6D0, 0xFE5AF6D4, SOV_DEFAULT) = 0
5259/43:     18.2972     getsockname(6, 0xFE5AF980, 0xFE5AF8A4, SOV_DEFAULT) = 0
5259/43:     18.2973     write(5, "\0 Z918782E1 511", 8)               = 8
5259/43:     18.2974     lwp_unpark(3)                         = 0
5259/3:          18.2974     lwp_park(0x00000000, 0)                    = 0
5259/3:          18.2977     brk(0x00064850)                         = 0
5259/3:          18.2977     brk(0x00078850)                         = 0
5259/3:          18.2981     pollsys(0xFEACF458, 50, 0xFEACF3E8, 0x00000000)     = 0
5259/3:          18.2982     pollsys(0xFEACF458, 50, 0xFEACF3E8, 0x00000000)     = 0
5259/3:          18.2983     pollsys(0xFEACF458, 50, 0xFEACF3E8, 0x00000000)     = 0Then loades of pollsys(0xFEACF458, 50, 0xFEACF3E8, 0x00000000)     = 0 until I kill the daemon - seems like they are killing the server?
Thanks,
Kasper

Dock uses lots of CPU time

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