Safari eating up 75% of CPU

Hello,
I would like to know if anyone has any suggestions on what is wrong with my browser. The past couple weeks Safari has slowed drastically and I can't really figure out why. I have emptied the cache, and deleted all of the favorite icons a few times.
When running activity viewer, it uses up about 75% of the CPU when loading pages. My mouse gets slow and unresponsive, along with the pages taking much much longer than normal to load. The only other programs running are typically iTunes, Mail, and Adium (instant messaging). Those programs run fine except iTunes may bog down some if I'm waiting for a page to load in Safari. Anyway, hopefully someone has some suggestions for me. Thanks a lot,
- Shawn
PB G4 15 AL Mac OS X (10.4.7) 1.5 GHz, 512 MB DDR SDRAM, 20GB iPod, Airport

Shawn --
Try these and report back, OK?
Do these & report back, OK ?
1. Empty your cache & History settings via the Safari menu
2. Trash your Icons Folder:
HD>Users>Home>YourName>Library>Safari -->Icons
Restart Safari and a new folder will be automatically regenerated.
(This folder saves favicons of all the sites you visit. Needs cleaning periodically -- or you can change that file's preferences to "Read Only"
rather than "Read & Write." This will keep it from growing in size.)
3. Launch Font Book and check all fonts for duplicates. A duplicated font will have a bullet beside the font family and you can resolve duplicates by selecting the font and at the menu bar, go to Edit > Resolve Duplicates.
Do this for each font with a bullet next to it.
If you're still having problems:
4. Shut down your computer . . . unplug the computer, modem, and router, if you have one. Let everything sit for 2-3 minutes. Plug everything back in, start up your modem & router, then restart your computer.
5. Do you have internet apps SpeedDownload, iGetter, PithHelmet, Acid Search, Safari Enhancer ? Or Norton or Virex? Sometimes non-apple internet apps need updating or uninstalling. If you do, let us know which ones and which version, please.
Hope this helps

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I've finally had it with Safari and have switched to Camino. I'd like to know why Safari eats up so much memory. Things will be going slow, I'll get the rainbow swirl and I'll open the activity monitor and see that Safari has two different process names going on, on of which is eating 2GB +. Just to compare, I'll open the same windows in Camino and I'll get a maximum usage of 300 MB.
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VM size 183
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Thank you much,
Steven

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cheers
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After doing the update to 3.1.1, the problem was gone with my MacBook.

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I've cleared cookies multiple times
I've emptied the cache
I cleared my download history, and a majority of my browsing history
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EtreCheck version: 2.1.8 (121)
Report generated 22 March 2015 12:51:18 am IST
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
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    iMac - model: iMac11,2
    1 3.06 GHz Intel Core i3 CPU: 2-core
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        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 0/DIMM1
            Empty
        BANK 1/DIMM1
            Empty
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Disk Information: ℹ️
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        EFI (disk0s1) <not mounted> : 210 MB
        iMac HD (disk0s2) / : 341.27 GB (177.33 GB free)
        Recovery HD (disk0s3) <not mounted> [Recovery]: 784 MB
        Install OS X Yosemite (disk0s4) /Volumes/Install OS X Yosemite : 7.00 GB (1.76 GB free)
        BOOTCAMP (disk0s5) /Volumes/BOOTCAMP : 150.00 GB (72.75 GB free)
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Kernel Extensions: ℹ️
        /Users/[redacted]/Library/Services/ToastIt.service/Contents/MacOS
    [not loaded]    com.roxio.TDIXController (2.0) [Click for support]
Launch Daemons: ℹ️
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Internet Plug-ins: ℹ️
    Default Browser: Version: 600 - SDK 10.10
    QuickTime Plugin: Version: 7.7.3
Safari Extensions: ℹ️
    AdBlock
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    Volumes being backed up:
        iMac HD: Disk size: 341.27 GB Disk used: 163.93 GB
    Destinations:
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        Total size: 610.00 GB
        Total number of backups: 8
        Oldest backup: 2015-02-21 20:03:03 +0000
        Last backup: 2015-03-20 13:51:48 +0000
        Size of backup disk: Adequate
            Backup size 610.00 GB > (Disk used 163.93 GB X 3)
Top Processes by CPU: ℹ️
         6%    mds
         3%    WindowServer
         0%    sysmond
         0%    fontd
         0%    Dropbox
Top Processes by Memory: ℹ️
    202 MB    com.apple.WebKit.WebContent
    176 MB    Safari
    47 MB    Activity Monitor
    26 MB    mds
    26 MB    mds_stores
Virtual Memory Information: ℹ️
    912 MB    Free RAM
    1.02 GB    Active RAM
    877 MB    Inactive RAM
    814 MB    Wired RAM
    3.75 GB    Page-ins
    5 MB    Page-outs
Diagnostics Information: ℹ️
    Mar 22, 2015, 12:16:00 AM    Self test - passed
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Quit Safari, quits okay, but find CPU still being stolen

I use MenuMeters to watch the usage of my dual G4 CPUs, and I've noticed lately that my CPUs are often being used almost to the max, even with my being idle and no other apps doing anything important.
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Has anyone else experienced this?"

What I meant by "size" was the amount of RAM being used by Safari, which has been known to increase exponentially. For example, right now I have 52 tabs open (don't ask ). Per my activity monitor, Safari is alloted 958 MB of RAM and is using about 10 to 15 percent of the CPU (dual-core processors). By contrast on my MacBook Pro, Safari, with 21 tabs, has 200 MB of RAM allotted, using 11 - 14 percent of the CPU. Both machines are using the same Safari 3rd party items, however, more Flash related sites are open on the iMac.
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What plug-ins do you have?
Any 3rd party extensions?
The ability to switch a single plug-in off, would have to try disable all plug-ins.
Disable page previews.
Same for javascript, can't disable/enable on specific sites.
On Mac, Click2Flash works well to limit loading flash plug-ins.
Some sites insist on running scripts constantly, and/or attempt to reload a page (page hit counter to show more hits than real?).
Safari 5 doesn't seem to be well threaded. Each tab fights for processor cycles and isn't able to make efficient use of multiple cores/threads. Try opening 10 tabs concurrently. Now do that same with any other browser like Firefox or IE9.
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Safari and a strange high cpu load

I have noticed that recently when i start Safari my cpu load starts to get crazy.
CPU load on one core reaches 92%and falls to 10%, then another core gets 90% load and falls to normal. It is happening continuously. My MBPro get extremely hot and loud.
Everything gets back to normal when I quit or force quit Safari.
Any ideas what is going on?
Other browsers like Firefox and Opera act normally.
Safari Version 3.0.4 (5523.10.6), Mac OS X 10.5.1 all updates till today.
EDIT: I've just done Empty Cache in the browser and the problem disappeared.
Message was edited by: Bartosz

Ok, I found out, why I had a high cpu utilization.
It wasn't Safari 5's fault, but I had a big host file for blocking ads.
After removing these ~15000 lines in /etc/hosts everything is fine again

[SOLVED] X eating 60% of the CPU

Hi everyone,
I finished installing Archlinux with the AUR RT kernel, everything works (damn) fine, but X. No matter what I do, or don't, it eats around 60% of the first CPU. I saw some post about it, but the answers to them doesn't change a thing on my setup.
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Last edited by DanielD (2013-10-08 20:39:58)

Please remember to mark the thread as solved https://bbs.archlinux.org/viewtopic.php?id=130309

Gamin/gam_server eating 70%+ of my CPU

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Safari eating up 75% of CPU

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