Which is the better upgrade: RAM or a fusion drive?

I am on the verge of ordering one of the new iMac models but I find myself in right ole quandary regarding the Fusion Drive. On the one hand it looks like interesting technology and I'm sufficiently geekly to be motivated by that. On the other hand, I am very reluctant to spend £350 for a speed bump of a second or two here and there. (Yes, it is £350: £200 for the drive, plus £150 extra for the upper end 21.5"). A RAM upgrade seemed a much more sensible option, espeically since this cannot be upgraded later (boo hiss to that!). But then I started thinking: all-flash systems like the MacBook Air have no distinct RAM as such: it's 128 or 256Gb of flash and that's it. So what function does RAM have on a fusion drive system?? Would I not get the same benefits from a fusion drive as I would from a RAM upgrade??
Informed input much appreciated: I am very confused!

Cameron Paterson wrote:
I see what you mean Martin. They do seem distinct but there is some overlap, isn't there? There is no RAM in a MacBook Air is there? Just a quantity of flash memory....
<omitted>
Most computers today do not have RAM which is just Random Access Memory, they have Dynamic Random Access Memory or DRAM, but the 'idea' is the same. DRAM is memory used by the OS and applications for storing objects they are working on in the computers 'memory'.
SSD or flash is flash memory configured to handle 'hard drive' functions. Compared to hardware disk drives with their inertia latency issues SSD is lightning quick. The hard drive function is usually referred to as 'storage' and not as 'memory'.
For example, my mid-2011 MacBook Air has 256GB of SSD which is flash memory used as the main disk drive. It is very fast. It also has 8GB of DRAM, which is enough for most applications to have room to run without paging to the SSD. Since paging to SSD is very quick apps that have to page to the SSD run very quickly too.
A fusion drive is one that has a SSD drive 'married' to a hardware drive via software. Apple's implementation has a 128GB SSD and a 1TB or 3TB hard drive. The software is designed to keep the most often accessed items stored on the SSD. So while it is really two drives, a fusion drive for all practical purposes appears as a single drive. One would have to get to the system level to see it as two drives and Apple has made that very difficult. Accessing the drives separately is a quick and sure way to hose your system.

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now,there is very big StringBuffer sb,i want convert
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s=sb.toString();
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toString(StringBuffer)
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content or capacity of the string buffer must then make a copy of the internal buffer at that
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robert

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Hardware Information:
          iMac (27-inch, Mid 2010)
          iMac - model: iMac11,3
          1 2.8 GHz Intel Core i5 CPU: 4 cores
          12 GB RAM
Video Information:
          ATI Radeon HD 5750 - VRAM: 1024 MB
System Software:
          OS X 10.9.1 (13B42) - Uptime: 4 days 13:57:40
Disk Information:
          ST2000DM001-9YN164 disk1 : (2 TB)
                    EFI (disk1s1) <not mounted>: 209.7 MB
                    disk1s2 (disk1s2) <not mounted>: 2 TB
                    Boot OS X (disk1s3) <not mounted>: 650 MB
          OPTIARC DVD RW AD-5680H
          OWC Mercury Electra 3G SSD disk0 : (120.03 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    disk0s2 (disk0s2) <not mounted>: 119.69 GB
                    Boot OS X (disk0s3) <not mounted>: 134.2 MB
USB Information:
          Apple Internal Memory Card Reader
          Apple Inc. BRCM2046 Hub
                    Apple Inc. Bluetooth USB Host Controller
          Western Digital My Passport 0730 500.07 GB
                    EFI (disk3s1) <not mounted>: 209.7 MB
                    Fusion Clone (disk3s2) /Volumes/Fusion Clone: 499.73 GB (114.11 GB free)
          Apple Computer, Inc. IR Receiver
          Apple Inc. Built-in iSight
FireWire Information:
Thunderbolt Information:
Kernel Extensions:
          org.virtualbox.kext.VBoxDrv          (4.3.6)
          org.virtualbox.kext.VBoxUSB          (4.3.6)
          org.virtualbox.kext.VBoxNetFlt          (4.3.6)
          org.virtualbox.kext.VBoxNetAdp          (4.3.6)
Problem System Launch Daemons:
          [failed] com.apple.wdhelper.plist 3rd-Party support link
Problem System Launch Agents:
Launch Daemons:
          [loaded] com.adobe.fpsaud.plist 3rd-Party support link
          [loaded] com.bombich.ccc.plist 3rd-Party support link
          [loaded] com.crashplan.engine.plist 3rd-Party support link
          [loaded] com.microsoft.office.licensing.helper.plist 3rd-Party support link
          [loaded] com.oracle.java.Helper-Tool.plist 3rd-Party support link
          [loaded] com.oracle.java.JavaUpdateHelper.plist 3rd-Party support link
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          [loaded] org.macosforge.xquartz.privileged_startx.plist 3rd-Party support link
          [not loaded] org.virtualbox.startup.plist 3rd-Party support link
Launch Agents:
          [loaded] com.oracle.java.Java-Updater.plist 3rd-Party support link
          [loaded] org.macosforge.xquartz.startx.plist 3rd-Party support link
User Launch Agents:
          [loaded] com.crashplan.javacheck.plist 3rd-Party support link
          [loaded] com.ecamm.printopia.plist 3rd-Party support link
          [not loaded] org.virtualbox.vboxwebsrv.plist 3rd-Party support link
User Login Items:
          Flux
          iTunesHelper
          Arq Agent
          Dropbox
          Cinch
          CrashPlan menu bar
          Trim Enabler
          Box Sync
Internet Plug-ins:
          SharePointBrowserPlugin: Version: 14.3.9 - SDK 10.6 3rd-Party support link
          FlashPlayer-10.6: Version: 11.9.900.170 - SDK 10.6 3rd-Party support link
          Flash Player: Version: 11.9.900.170 - SDK 10.6 Outdated! Update
          QuickTime Plugin: Version: 7.7.3
          JavaAppletPlugin: Version: Java 7 Update 51 3rd-Party support link
          Default Browser: Version: 537 - SDK 10.9
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 1.9 - SDK 10.9
          AppleAVBAudio: Version: 2.0.0 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
3rd Party Preference Panes:
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Bad Fonts:
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Old Applications:
          /Library/Application Support/Microsoft/MERP2.0
                    Microsoft Error Reporting:          Version: 2.2.9 - SDK 10.4 3rd-Party support link
                    Microsoft Ship Asserts:          Version: 1.1.4 - SDK 10.4 3rd-Party support link
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          Solver:          Version: 1.0 - SDK 10.5 3rd-Party support link
                    /Applications/Microsoft Office 2011/Office/Add-Ins/Solver.app
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                    Microsoft Graph:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Database Utility:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Office Reminders:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Upload Center:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
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                    SyncServicesAgent:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
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                    Microsoft Database Daemon:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
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                    Microsoft Clip Gallery:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
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                    Microsoft PowerPoint:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Excel:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Outlook:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
                    Microsoft Word:          Version: 14.3.9 - SDK 10.5 3rd-Party support link
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                    /Applications/Microsoft Office 2011/Additional Tools/Microsoft Language Register/Microsoft Language Register.app
          Microsoft AutoUpdate:          Version: 2.3.6 - SDK 10.4 3rd-Party support link
                    /Library/Application Support/Microsoft/MAU2.0/Microsoft AutoUpdate.app
Time Machine:
          Skip System Files: NO
          Mobile backups: ON
          Auto backup: YES
          Volumes being backed up:
          Destinations:
                    1 TB BACKUP [Network] (Last used)
                    Total size: 930.87 GB
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                    Oldest backup: 2014-01-20 07:57:24 +0000
                    Last backup: 2014-01-22 11:06:18 +0000
                    Size of backup disk: Excellent
                              Backup size 930.87 GB > (Disk size 0 B X 3)
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Top Processes by CPU:
               2%          EtreCheck
               1%          WindowServer
               1%          Box Sync Monitor
               0%          Box Sync
               0%          configd
Top Processes by Memory:
          737 MB          iTunes
          590 MB          iPhoto
          406 MB          Arq
          344 MB          com.apple.MediaLibraryService
          184 MB          Finder
Virtual Memory Information:
          3.30 GB          Free RAM
          4.69 GB          Active RAM
          2.79 GB          Inactive RAM
          1.07 GB          Wired RAM
          9.87 GB          Page-ins
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Are you booting from your clone:
Disk Information:
          ST2000DM001-9YN164 disk1 : (2 TB)
                    EFI (disk1s1) <not mounted>: 209.7 MB
                    disk1s2 (disk1s2) <not mounted>: 2 TB
                    Boot OS X (disk1s3) <not mounted>: 650 MB
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          OWC Mercury Electra 3G SSD disk0 : (120.03 GB)
                    EFI (disk0s1) <not mounted>: 209.7 MB
                    disk0s2 (disk0s2) <not mounted>: 119.69 GB
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Clinton

Will the 2013 update to the regular macbook pro include a fusion drive option?

What is the likelihood that the 2013 update to the regular macbook pro will include a fusion drive option?

Apple will only modify the hardware of your computer in case something is damaged. However, if you want, you can try to make your own Fusion Drive on the MacBook Pro, as Apple doesn't support it officially on that Mac > http://www.macworld.com/article/2014011/how-to-make-your-own-fusion-drive.html

Which is the better low-cost 24" Alum refurb'd iMac and why?

OK, I admit I don't pay enough attention. I have a couple year old 24" White iMac with 2.4GHz processor and 500Gb drive, and I'm thinking of "upgrading" to an Alum iMac for no particular reason. So I've been looking at the refurbs in the Apple store. Right now I've got a choice between
1) 2.66GHz, 4G, 640G HD, Nvidia GEForce 9400 w/256 for $1299, and
2) 2.93GHz, 4G, 640G HD, NVIDIA GeForce GT 120 with 256MB memory for 1549, and
3) 3.06GHz, 2G, 500G HD, NVIDIA GeForce 8800 GS with 512MB memory for 1599,
all more or less in budget. Are there significant differences and are they mostly to do with the vid card?
Any opinions? Buy the most expensive one you can afford? There used to be an older 2.8GHz model that many said was better than the 2.66GHz model here, so are there sig differences? Sould I just keep the white one for the present and wait?
Mired in Doubt

Pier Rodelon wrote:
One poster remarked that the 2.8 GHz model unlikely to be noticeably faster than my present 2.4GHz with 3G ram. If that also holds true for the 2.93 and 3.06 I might just sit still and wait a bit, since my machine has operated flawlessly since I bought it on eBay 2 years ago.
As a side-question, what is the projected schedule of new iMac releases, and where can I find a history of all releases?
Again, many thanks for the help.
All the choices you refer to, including the 2.8 GHz that I mentioned, won't have significant speed differences. You already have an Intel Core 2 Duo processor, and the difference between 2.4, 2.6, 2.8, 2.9, and 3.06 is only an issue of seconds, not minutes. If you were moving up from PowerPC to Intel, then yes, a new Mac would provide a huge increase in speed.
If you want to know the history of all Macs, download the free Mactracker program.
http://mactracker.dreamhosters.com/
It provides details of every Mac model made, including the introduction and discontinue dates. Macs lasted a lot longer in the old days: Mac IIci introduced September 1989 and discontinued February 1993. The shortest lived Mac would be the original Power Mac G4 from August 1999 to October 1999. The iMacs have typically run the course of a year before a new model is released. Complete design changes have been around a two to four year period, or sometimes longer.

Which is the better converter for mts and mpg files?

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Message was edited by: CJAZZY

ClipWrap2.

Which is the better lens for wildlife, sport action canon 70-200 is usm ii series L or Canon 100-400

Which would be a better for wildlife and sport action Canon 70-200 mm is usm ii serie L f/2.8 or Canon 100-400 mm f/4.5-5.6?

On what camera? It makes a big difference depending upon whether you are using full frame or a crop camera.
Also depends upon the particular sports and type of wildlife most commonly involved, how much reach you might need. Outdoor, daytime sports vs indoor and nightime sports is another key factor.
On a crop camera a 70-200 is generally a lot more usable than it is on full frame, for sports and wildlife. An f2.8 lens and 70-200 might be ideal for indoor sports even with a crop camera. It also might be plenty for large game that can be pretty closely approacted. But for small and more shy wildlife, sports on a larger playing field, you'll more likely need the 100-400. But as an f4.5-5.6 lens that's going to be more of a daytime-only lens.
The 100-400mm is unusual in that it's a push/pull zoom. This can be particularly fast to use and makes the lens popular among photograhers shooting fast moving subjects such as birds in flight and air shows.
If you give serious consideration to the 70-200/2.8 IS II in combination with teleconverter EF 2X III, I'd suggest renting and trying them toghether first. The reason is that a stronger 2X teleconverter has more effect on image quality than a weaker TC. The specific combination of the 70-200 Mark II lens and the 2X Mark III TC is pretty darned good.... better than the combo earlier versions of each item. But whether or not it's up to your expectastions is a judgment call only you can make. So it might be wise to rent before you buy, just to be sure.
If instead you start to take a hard look at the 100-400mm, once again you might want to rent it and give it a try. Some people really like the push/pull zoom design. Some don't. (I'm one of the latter... but to be fair this is largely an old prejudice from trying to use that type of zoom in the past, long before IS. I always found push-pull zooms hard to get a steady shot with.... But the 100-400's IS goes a long way toward solving that problem.)
And those two really aren't your only choices.
Personally I use a pair of crop cameras (7D), most of the time one fitted with a 70-200, and the other fitted with a 300/4 IS, sometimes in combination with an EF 1.4X II teleconverter. Or, when I don't need to be mobile and can set up a tripod, I'll use a 300/2.8 IS, both by itself and with EF 1.4X II or 2X II teleconverters.
Another possibility is two lower cost lenses... such as a 70-200/4 IS in combination with a third party lens such as the Sigma 120-400 OS or 150-500 OS. Those lenses are considerably less expensive than the 70-200/2.8 II and the 100-400, respectively. You might be able to afford both and still find they meet your needs very well.
I use the 70-200/4 IS, as well as a copy of the first version of the 70-200/2.8 IS, and they are excellent lenses too. No doubt about it, the 70-200/2.8 IS Mark II is top of the heap and exceptionally good... but rest assured those other 70-200s are no slouches.
If using a full frame camera, for large field sports and more distant, smaller wildlife.... better start saving up. You're going to need one or two of the super telephotos, such as the new EF 200-400/4L IS 1.4X that I'm saving up for!
p.s. By the way, if not already doing so you might want to try Back Button Focusing. It's a very popular technique among sports/action and wildlife photographers. I've been using it for years for virtually everything I shoot, and can't imagine using any other method now.
Alan Myers
San Jose, Calif., USA
"Walk softly and carry a big lens."
GEAR: 5DII, 7D(x2), 50D(x3), some other cameras, various lenses & accessories
FLICKR & PRINTROOM

Which is the better upgrade: RAM or a fusion drive?

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