Safari as memory hog

I recently read in this forum that "Safari is a
memory hog". Exactly how do I determine now much
memory Safari is using? Does the amount of memory
used increase with usage or over time?
Any help/infor would be much appreciated.
Dave
Oddly, I don't really see that on any of my systems. What I do see is an occasional site that causes Safari to go nuts, using all available memory. I've seen that today on the Washington Post opinion pages. Not the opinion home, but if I go to any of the columns themselves, my memory gets maxed out, with Safari using >90% of available memory.
Strange...
Dave Fritzinger

Similar Messages

Safari 5 - A Big Memory Hog

Safari 5 hogs memory up to a point where it slows down the whole system and provokes freezes by the dozen -- on my system with 4 GB of RAM no other software is as often "unresponsive" as Safari.
Safari's memory usage starts with about 150 MB real memory (plus the same amount in virtual memory) and after some browsing gobbles up to 1 GB (Firefox and Chrome never exceed 120 MB). Then all other open programs as well as the Finder slow down to a crawl.
I haven't installed any plugins or extensions other than those loaded with the standard Safari installation. I use ClickToFlash to avoid Flash content. And I also go regularly through all the motions like permission repair, cache emptying (which I do several times a day), Onxy etc.
The only remedy currently is optimizing the memory with the iFreeMemory utility (recommended!!!).
I'm amazed that nothing has been done in to solve this problem in Safari 5 although this is a known issue since Safari 4.

I experience this memory problem too, but since a few days only. I never registered Safari using that much memory before, however it managed to fill my whole 4 GB of RAM several times in the past days.
I tried to apply the classic advice you get in online forums, like permission repair and cache emptying, but these measures could only delay the problem. Deactivating the extensions "adblock" and WOT didn't help.
Moreover, I originally bought a mac in order to not need to do such work anymore...^^.
Is there any further advice available on this subject, else than getting back to using firefox (I really like the speed and appearance of safari)?
Thank you in advance.

Mavericks Safari Memory Hog

Recently, I noticed my free RAM was very low when running Safari. Lpooking at the activity monitor having one page open is displaying "Safari Web Content" as usin 247 MB in addition to Safari using 36 MB. The amutn of memory goes up with additional pages are open.
I have stopped using Safari until I get this figured out. Any ideas?

Have a look here for more information about Safari's memory challenges - referred to as "world leaks".
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Why is Safari such a memory hog?

I brought up the activity momitor on my 20" Core Duo, just to see how memory was being used (I have full 2GB). I was rather shocked to see that the leading user of both real and virtual memory was Safari: 598MB real/958MB virtual. Second on the list was the SystemUIServer with 538MB real/880MB virtual. After that, things dropped off significantly with other open (though not being actively used) programs like Word, Entourage, Preview, etc. using well under 100MB each of real memory and 500MB or less of virtual memory. Out of my 2GB RAM, about 1.3 GB was actively being used (wired and active), with 550MB inactive and 150 free. My VM size was 13.5 GB. I can see why boosting RAM makes a huge difference in performance!
This type of usage must be something specific to the Core Duo, because I have the same OS (10.5) running on my Pismo powerbook (with 1GB RAM) and its numbers are paltry by comparison: highest user: Mozilla, at 160MB/477MB, followed by the system (kernal task) at 63MB/775MB (real/virtual). Out of the 1 GB, only 200MB was active(120MB)/wired(75MB), with 470MB inactive, and 350MB free. My VM was only 4.2GB (with basically all the same applications active: the chief difference being Mozilla instead of Safari as the browser). It should be noted that in both cases Tabbed browsing is being used with about 7 tabs in each browser (actually, 7 tabs in Safari, 10 in Mozilla).
For those "in the know", does this seem normal? And is the key difference here the way the Core Duo processor handles memory? Or is it also just a matter of the more memory available, the more it will use? (Something is definitely different, though because the CD is using about 60% of actual RAM (wired/active), whereas the Pismo is only using about 20%).

Hello John61254,
i do find the Safari memory usage a bit large on your message, how many safari windows/tabs is opened? long history since you last started safari?
How much is safari taking memory just after starting it? I surfed quite long on this (core duo 17" with 1,5Gb memory) and i have >140mb real and 380 virtual on safari.
You might want to try reset caches with example Onyx
Another thing, do you have any addons/plugins on safari installed wich could be PPC based( on second tought these might not run unless you start safari with rosetta ).
On VM size i wouldnt be worried about, its IMHO running quite smoothly for the user.

Photoshop CC Memory Hog ...

Photoshop CC is a Memory Hog ... I have 4GB and PS CC is the only thing open my ram drops to like 895mb free...

Definitely more RAM would be ideal -- but only useful with a 64-bit OS. You can adjust the amount of memory the OS will allow PS to use in Photoshop Preferences > Performance if you need to work with the system config you have and need ram allocation change to help with performance problems with PS or other applications.
You might find this article of interest (written for CS6 but should generally apply for CC).
http://blogs.adobe.com/crawlspace/2012/10/how-to-tune-photoshop-cs6-for-peak-performance.h tml

ML, Memory hog?

OK, I'm strongly considering the low end MBP Retina, my dilemma is 8 vs 16gb memory especially since they can't be upgraded later. I'll be doing some photo & video editing on an enthusiats level, not pro or particularly savvy amateur BUT, it appears Mountain Lion is a memory hog.
Any feedback or suggestions appreciated

Lion was a pretty big memory hog. I would highly recommend it especially if you are planning on keeping the machine for more than 2-3 years as at that point the machine will probably be falling behind because newer operating systems will most definitely require more ram than current ones. Lion will load as much as it can into ram so I would highly suggest it!

CS2 Memory Hog

Is it just me or is Photoshop CS2, including the Bridge, a terrible memory hog!!

"384MB of RAM to run any one creative application with Adobe® Bridge
and Version Cue® Workspace
Additional RAM required to run multiple applications simultaneously
(512MB to 1GB recommended) "
By the way, are you using the Photoshop SDK, a programmer tool? If so,
please focus the question so the people here know how you are using
it. If you aren't using the Photoshop SDK, I recommend asking in the
general Photoshop (Windows or Mac) forum.
On the list of forums in http://www.adobe.com/support/forums.html the
general Photoshop section, for Windows or Macintosh, is called "Adobe
Photoshop® & Adobe ImageReady®", 5 lines up from Photoshop SDK.
Aandi Inston

Applemobiledevice memory hog

memory hog - how do we fix ??

Try this,
Close your iTunes,
Go to command Prompt - START/ALL PROGRAMS/ACCESSORIES, right mouse click "Command Prompt", choose "Run as Administrator".
In the Command Prompt box, type in
netsh winsock reset
Hit "ENTER" key
Restart your computer.
Now check if it is ok now.

Safari and Chrome Hogging Memory to Play Video

Safari and Chrome Start to hog up most of the processor. the videos start out of but after a while the proccessor jumps up to 100% then make the video out of sync with th audio. The Audio will play fine. Once it starts The Processor will cycle up and down until the video is stopped. also I noticed the when transfering any file to and from a USB Stick it takes along time now.
This is what is going on with no video playing.
7/22/13 1:36:06.693 PM com.nds.pcshow: Created socket (3)
7/22/13 1:36:06.693 PM com.nds.pcshow: Set SO_REUSEADDR 1
7/22/13 1:36:06.693 PM com.nds.pcshow: Set SO_REUSEPORT 1
7/22/13 1:36:06.693 PM com.nds.pcshow: bind to 0.0.0.0:1900
7/22/13 1:36:06.693 PM com.nds.pcshow: Starting child process!!!!!!!!!!.
7/22/13 1:36:07.109 PM UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
7/22/13 1:36:07.160 PM configd: network configuration changed.
7/22/13 1:36:07.204 PM applepushserviced: <APSCourier: 0x7fcc8b447c10>: Stream error occurred for <APSTCPStream: 0x7fcc8c83aee0>: The operation couldn’t be completed. Socket is not connected
7/22/13 1:36:07.234 PM applepushserviced: <APSCourier: 0x7fcc8b447c10>: Stream error occurred for <APSTCPStream: 0x7fcc8c83aee0>: The operation couldn’t be completed. (kCFErrorDomainCFNetwork error 2.)
7/22/13 1:36:07.237 PM applepushserviced: <APSCourier: 0x7fcc8b447c10>: Stream error occurred for <APSTCPStream: 0x7fcc8c84b370>: The operation couldn’t be completed. (kCFErrorDomainCFNetwork error 2.)
7/22/13 1:36:13.397 PM configd: network configuration changed.
7/22/13 1:36:13.571 PM UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe
7/22/13 1:36:13.572 PM UserEventAgent: CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on LDGUEST because it is protected and not on the exception list
7/22/13 1:36:13.572 PM UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown
7/22/13 1:36:13.578 PM configd: network configuration changed.
7/22/13 1:36:18.882 PM rpcsvchost: sandbox_init: com.apple.msrpc.netlogon.sb succeeded
7/22/13 1:37:46.659 PM Mail: Using V2 Layout
7/22/13 1:37:48.755 PM SyncServer: [0x7fc5d9c17080] |DataManager|Warning| Client com.apple.DotMacSync image file path /System/Library/PreferencePanes/Mac.prefPane/Contents/Resources/Internet.tiff does not exist.
7/22/13 1:37:48.758 PM SyncServer: [0x7fc5d9c17080] |DataManager|Warning| Client com.yahoo.70:cd:60:78:53:6c image file path /System/Library/PrivateFrameworks/YahooSync.framework/Resources/Yahoo! Sync.app/Contents/Resources/y_logo_mac_1.png does not exist.
7/22/13 1:38:06.763 PM mDNSResponder: 42: Could not write data to client because of error - aborting connection
7/22/13 1:38:06.768 PM mDNSResponder: 42: DNSServiceGetAddrInfo v4v6 ytimg.l.google.com.
7/22/13 1:38:21.815 PM com.apple.mdworker.pool.0: I/O error : encoder error
7/22/13 1:38:22.251 PM mdworker: *** Failed to decode 8bi data, treating as binary
7/22/13 1:38:22.254 PM mdworker: *** Failed to decode 8bi data, treating as binary
7/22/13 1:38:22.435 PM mdworker: *** Failed to decode 8bi data, treating as binary
This is what is going on when Video is playing
7/22/13 1:41:18.771 PM Yahoo! Sync: Unable to load nib file: MainMenu, exiting
7/22/13 1:53:45.739 PM com.apple.SecurityServer: Session 100030 created
7/22/13 1:53:46.821 PM login: USER_PROCESS: 1739 ttys000
7/22/13 1:58:24.693 PM login: DEAD_PROCESS: 1739 ttys000
7/22/13 2:10:09.258 PM PluginProcess: REQUIRE_NO_ERR failure: 0xe00002d7 - file: /SourceCache/IOBluetoothFamily/IOBluetoothFamily-4080.4.17/Core/Framework/Core/ Device/IOBluetoothDeviceConfigUserLib.m:446
7/22/13 2:10:09.264 PM [0x0-0xe00e0].com.apple.Safari: 2013-07-22 14:10:09.245 PluginProcess[1777:23b07] REQUIRE_NO_ERR failure: 0xe00002d7 - file: /SourceCache/IOBluetoothFamily/IOBluetoothFamily-4080.4.17/Core/Framework/Core/ Device/IOBluetoothDeviceConfigUserLib.m:446
7/22/13 2:12:14.825 PM [0x0-0x120120].com.ibm.lotus.Notes: [068C:0005-B1982000] 07/22/2013 02:12:14 PM 00:81

Safari and Chrome Start to hog up most of the processor. the videos start out of but after a while the proccessor jumps up to 100% then make the video out of sync with th audio. The Audio will play fine. Once it starts The Processor will cycle up and down until the video is stopped. also I noticed the when transfering any file to and from a USB Stick it takes along time now.
This is what is going on with no video playing.
7/22/13 1:36:06.693 PM com.nds.pcshow: Created socket (3)
7/22/13 1:36:06.693 PM com.nds.pcshow: Set SO_REUSEADDR 1
7/22/13 1:36:06.693 PM com.nds.pcshow: Set SO_REUSEPORT 1
7/22/13 1:36:06.693 PM com.nds.pcshow: bind to 0.0.0.0:1900
7/22/13 1:36:06.693 PM com.nds.pcshow: Starting child process!!!!!!!!!!.
7/22/13 1:36:07.109 PM UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - PreProbe
7/22/13 1:36:07.160 PM configd: network configuration changed.
7/22/13 1:36:07.204 PM applepushserviced: <APSCourier: 0x7fcc8b447c10>: Stream error occurred for <APSTCPStream: 0x7fcc8c83aee0>: The operation couldn’t be completed. Socket is not connected
7/22/13 1:36:07.234 PM applepushserviced: <APSCourier: 0x7fcc8b447c10>: Stream error occurred for <APSTCPStream: 0x7fcc8c83aee0>: The operation couldn’t be completed. (kCFErrorDomainCFNetwork error 2.)
7/22/13 1:36:07.237 PM applepushserviced: <APSCourier: 0x7fcc8b447c10>: Stream error occurred for <APSTCPStream: 0x7fcc8c84b370>: The operation couldn’t be completed. (kCFErrorDomainCFNetwork error 2.)
7/22/13 1:36:13.397 PM configd: network configuration changed.
7/22/13 1:36:13.571 PM UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Probe
7/22/13 1:36:13.572 PM UserEventAgent: CaptiveNetworkSupport:CaptiveStartDetect:2343 Bypassing probe on LDGUEST because it is protected and not on the exception list
7/22/13 1:36:13.572 PM UserEventAgent: CaptiveNetworkSupport:CaptivePublishState:1211 en1 - Unknown
7/22/13 1:36:13.578 PM configd: network configuration changed.
7/22/13 1:36:18.882 PM rpcsvchost: sandbox_init: com.apple.msrpc.netlogon.sb succeeded
7/22/13 1:37:46.659 PM Mail: Using V2 Layout
7/22/13 1:37:48.755 PM SyncServer: [0x7fc5d9c17080] |DataManager|Warning| Client com.apple.DotMacSync image file path /System/Library/PreferencePanes/Mac.prefPane/Contents/Resources/Internet.tiff does not exist.
7/22/13 1:37:48.758 PM SyncServer: [0x7fc5d9c17080] |DataManager|Warning| Client com.yahoo.70:cd:60:78:53:6c image file path /System/Library/PrivateFrameworks/YahooSync.framework/Resources/Yahoo! Sync.app/Contents/Resources/y_logo_mac_1.png does not exist.
7/22/13 1:38:06.763 PM mDNSResponder: 42: Could not write data to client because of error - aborting connection
7/22/13 1:38:06.768 PM mDNSResponder: 42: DNSServiceGetAddrInfo v4v6 ytimg.l.google.com.
7/22/13 1:38:21.815 PM com.apple.mdworker.pool.0: I/O error : encoder error
7/22/13 1:38:22.251 PM mdworker: *** Failed to decode 8bi data, treating as binary
7/22/13 1:38:22.254 PM mdworker: *** Failed to decode 8bi data, treating as binary
7/22/13 1:38:22.435 PM mdworker: *** Failed to decode 8bi data, treating as binary
This is what is going on when Video is playing
7/22/13 1:41:18.771 PM Yahoo! Sync: Unable to load nib file: MainMenu, exiting
7/22/13 1:53:45.739 PM com.apple.SecurityServer: Session 100030 created
7/22/13 1:53:46.821 PM login: USER_PROCESS: 1739 ttys000
7/22/13 1:58:24.693 PM login: DEAD_PROCESS: 1739 ttys000
7/22/13 2:10:09.258 PM PluginProcess: REQUIRE_NO_ERR failure: 0xe00002d7 - file: /SourceCache/IOBluetoothFamily/IOBluetoothFamily-4080.4.17/Core/Framework/Core/ Device/IOBluetoothDeviceConfigUserLib.m:446
7/22/13 2:10:09.264 PM [0x0-0xe00e0].com.apple.Safari: 2013-07-22 14:10:09.245 PluginProcess[1777:23b07] REQUIRE_NO_ERR failure: 0xe00002d7 - file: /SourceCache/IOBluetoothFamily/IOBluetoothFamily-4080.4.17/Core/Framework/Core/ Device/IOBluetoothDeviceConfigUserLib.m:446
7/22/13 2:12:14.825 PM [0x0-0x120120].com.ibm.lotus.Notes: [068C:0005-B1982000] 07/22/2013 02:12:14 PM 00:81

Safari is a Big Fat Memory Hog

60 tabs may be a lot to have open at once, but Safari (4.0.2) is using 1.8 GB of RAM and 2.3 GB of virtual memory! This seems pretty unreasonable just for keeping some web pages open. I don't think that any of them are using Flash or any other memory intensive technology. Having to periodically quit and restart Safari is not a great solution, just time consuming and annoying. Does anyone have an explanation or a cure? Thanks.

60 Tabs is a lot to have open at once, and because you do, it requires more RAM and virtual memory to keep those items in the cache, as well as using up disk space for Top Sites.
If I were you, I'd stop opening so many tabs at once (half that should be sufficient), as well as start clearing out your caches and disable Top Sites if you don't use it or don't want to use it. You can start with this:
If you don't want to use the Top Sites feature, open Terminal and copy/paste this command:
defaults write com.apple.Safari RSSBookmarksInBarAreSubscribed -bool false
Then press Enter or Return and quit Terminal. Then go to ~/Library/Safari and delete the TopSites.plist file and the WebpageIcons.db file.
Go to ~/Library/Caches/com.apple.Safari and delete the contents of that folder, then use the Get Info panel to Lock the folder.
Go to ~/Library/Caches/Metadata/Safari and delete the contents of that folder, then use the Get Info panel to Lock that folder.
Go to ~/Library/Safari and delete these files:
Downloads.plist
History.plist
LastSession.plist
And if you have a folder named LocalStorage, delete it's contents and then use the Get Info panel to Lock that folder.
Use Disk Utility to Repair Disk Permissions; then restart Safari and test it out.
Post back with results.

Safari 4.1.3 Running Deathly Slow and Being a Memory Hog

Hi Everyone! I am on a Powerbook G4 with 2 GB ram. Running OS X 10.4.11 and Safari 4.1.3 When I first launch it take a long time to open first site I go to regardless of what site that it and then runs extremely slow, often unresponsive and also uses a ton of ram. What can I do to speed things up and get better performance? Thanks.

If Safari is getting very slow:
(Presumably you regularly empty your Safari cache by deleting the following file:
Home/Library/Caches/com.apple.Safari/cache.db
and clear your History)
Adding Open DNS codes to your Network Preferences, should give good results in terms of speed-up as well as added security, (including anti-phishing and redirects) (Full information about Open DNS is here: http://www.opendns.com/home-solutions ) and further independent information can be read here:
http://reviews.cnet.com/8301-13727_7-57338784-263/free-dnscrypt-tool-enhances-ma c-web-security/?tag=mncol;txt
and here:
http://www.macworld.com/article/1146064/troubleshootdns.html?t=234
Open System Preferences/Network. Double click on your connection type, or select it in the drop-down menu, and in the box marked 'DNS Servers' add the following two numbers:
208.67.222.222
208.67.220.220
(You can also enter them if you click on Advanced and then DNS)
Sometimes reversing the order of the DNS numbers can be beneficial in cases where there is a long delay before web pages start to load, and then suddenly load at normal speed:
http://support.apple.com/kb/TS2296
If you use a Router, make sure it has the latest firmware installed.
One reason for a slowness in page loading may be the 'DNS Pre-fetching' feature of Safari 5.x as is described here:
http://support.apple.com/kb/TS3408?viewlocale=en_US
You can cancel DNS pre-fetching by going to Terminal and typing:
defaults write com.apple.safari WebKitDNSPrefetchingEnabled -boolean false
You have to restart Safari for it to take effect.
If Safari seems to hang for ages:
If you have a lot of tabs open and/or a lot of pages running Flash, Safari can sometimes 'hang', requiring a restart of Safari. This can often be inconvenient, and as it is rarely Safari itself that is hanging but merely one of its plug-ins, usually Flash, there is a way using Terminal to restart the plug-ins (without restarting Safari and losing your tabs) by quitting the WebPluginHost process:
Open the Terminal from the Utilities folder in /Applications and type
killall -9 WebKitPluginHost
Note that this command kills all Safari plug-ins, not just Flash. All plug-ins should start back up when you reload the page.
Then go back to Safari and refresh any pages that were using the Flash plug-in. This also fixes the Beachball of Death. Try this whenever Safari gets slow or freezes. The later versions of Flash 10.1 onwards appear to have improved the situation somewhat, but haven't completed eliminated it.
For this and other reasons Apple switched their websites to HTML5 in January 2011:
http://www.appleinsider.com/articles/11/01/26/apple_revamps_its_public_website_u sing_html5.html

Safari memory hog?

The new update has been keeping my system slow so I start monitoring my activity and have found out that safari is taking so much of my RAM. It takes about 250 MB- 320MB of my RAM. I don't have other programs running as I mainly use my computer for browsing. has anyone noticed this too with the new safari?

Hi,
You can control Flash using ClickToFlash.
http://clicktoflash.com/
Very handy plugin and very easy to use.
Also, it's not necessarily the RAM that can cause slow downs with your Mac OS X unless you are using RAM intensive apps like PhotoShop or FinalCut Pro.. as examples.
How much free space on the startup disk?
Right or control click the MacintoshHD icon. Click Get Info. In the Get Info window you will see Capacity and Available. *Make sure you always have a minimum of 15% free disk space.*

Apple Video Trailers not working/Memory Hog

Hello,
When I go to apple.com/trailers, the trailers do not display I keep seeing that grey wheel turn endlessly. When I try to view it in Firefox, it works perfectly fine. Anyone know why Safari would be doing this?
Another issue that I have is that Safari eats up memory. I saw it once hit 750mb and it keeps growing without getting any smaller. Does anyone know why?
Thanks!

I know this is an older post, but I've been tearing what's left of my hair out over the past couple of hours trying to find the cause to exactly the same problem described above (restarts did not fix the problem for me):
Going to "www.apple.com/trailers" in Safari produces the grey spinning sprocket-wheel where the trailer titles are supposed to be (lower half of the window). I can't seem to fix this (reinstalled Safari, deleted a bunch of plug-ins and preference files, etc etc). This problem does not reproduce in Firefox 3, where the page loads fine. I know this started happening sometime in December but I didn't pay much attention to it, but now I'm wondering if it all started with the Safari 3.2.1 update in late November.
If anybody has any clues that might help fix this, that would be awesome. Thanks !!
Message was edited by: Jareer

EXCESSIVE MEMORY HOGGING BY PLUG-IN CONTAINER.EXE

''Duplicate post, continue here - [https://support.mozilla.com/en-US/questions/794119]''
I have recently noticed (last 1-2 Firefox Updates) that plug-in container.exe is hogging a lot of memory 307.7K - disabling plug-ins does NOT reduce this use - ANY PLUG-INS I SHOULD REMOVE??? OR 1) is this normal, 2) any suggestions to reduce if NOT normal??? Thank you!!!

Disable the new plugin crash protection (Out of Process Plugins or OOPP) feature in Firefox 3.6.4 (and later versions) by going to [http://kb.mozillazine.org/About:config about:config] (check the link for details) and then toggle the individual dom.ipc.plugins.enabled. preferences to false.
-type '''about:config''' in the URL/address/location bar and press the Enter key
-if you see a warning, accept it (promise to be careful)
-Filter = dom.ipc
-on any set to true, double-click to set to false
-restart Firefox
dom.ipc.plugins.enabled.npctrl.dll (Microsoft Silverlight)
dom.ipc.plugins.enabled.npqtplugin.dll (Apple QuickTime)
dom.ipc.plugins.enabled.npswf32.dll (Adobe Flash)
Note: The dom.ipc.plugins.enabled preference should already be set to "false", by default. This preference covers all other plugins not specified by an individual filename.
If you are only having a problem with a specific plugin, such as the Adobe Flash Player plugin, just disable that one preference.
See: http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins#Disabling_crash_protection
Also see:
http://forums.mozillazine.org/viewtopic.php?f=38&t=1929497
http://mozillalinks.org/wp/2010/06/firefox-3-6-4-now-available/
http://benjamin.smedbergs.us/blog/2010-03-03/firefox-safe-from-plugin-crashes/

SafariSyncClient Memory Hog – What's Going On?

All you Mac Wizards out there:
I've recently upgraded to Mountain Lion on my late 2008 13" MacBook. All seems well except something is haywire with Safari. I keep getting the program SafariSyncClient running and consuming enormous blocks of memory. The processor runs hot and the fans go at top speed while nothing happens (and the machine responsiveness slows to a crawl). I've tried deleting the Safari bookmarks.plist and letting it re-sync with iCloud, and it still happens. It consumes a large amount of processor, too. I've got 6 GB in this, and with only Firefox, PathFinder and a couple of other programs running (none very large--altogether maybe 500 MB), and SafariSyncClient is consuming 3.3 GB of RAM (yes, GB!) and there is a 2.25 GB page file! And this is after a restart. This is crazy! Never had this problem before upgrading. Force quit the application and it just happens again, over and over. Rebooting, purging the cache, whatever...still happens.
Next try is to do a clean start with no background apps, but on my iMac I have all the same stuff running, but no issue with SafariSyncClient.
So Frustrating!
I've searched and searched and have found little report of this issue.
Any ideas? Here's a shot from Activity Monitor.
Thanks so much.

Okay, this is offically nuts. I just restarted and omitted my background applications. Started and closed Safari. Within 10 minutes all of the memory was gone. The Sync Client was up to 4.4 GB and counting, and the swap file up to more than 3 GB. Only Finder and some system background apps running. I watched as the memory got sucked dry like the second hand on a clock.
Next try is a safe boot. I'm quite sure the problem is somewhere with Safari and not a rogue application.
Anyone else out there with this issue?
Please help!
Screen shot of Activity Monitory from the latest try:

Safari as memory hog

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