1 23 24 25 26 27 Previous Next 1,716 Replies Latest reply on Dec 18, 2012 11:37 AM by Victoria Bampton LR Queen Go to original post
      • 960. Re: Lightroom 4 is slow
        bob frost Level 3

        From: "Eaglerapids

        I don't understand why people like Bob and Rob are even posting on this

        thread. You say your system is working fine, so why are you trying to help

        people whose systems aren't working fine?

         

        Because although my system is currently working fine, it hasn't always been

        so, and I've had to do most of the things in my list to get LR working

        again - going back to LR1. I've had to clean out my catalog, I've had to

        re-render all my previews, change graphics cards, update graphics drivers,

        etc, etc. And these things have solved whatever problems I had with LR at

        the time. So I'm speaking from experience with these issues.

         

        This is a User-to-User forum, where users are supposed to help one another

        solve problems. It is NOT the forum for telling Adobe what you think of

        them, or even asking them for help. The other forum is read by Adobe, and of

        course they have help-lines for 1:1 help.

         

        It may seem laughable, but currently I'm rebuilding my previews database

        (65K images) because a few hours ago my computer had three blue screens in

        short succession while running LR (probably due to over-clocking), and that

        wiped out the previews database. That does not help LR performance, so I'm

        re-rendering all my previews - actually it does not re-render them in this

        case - it knows the previews are still there, but the record of them in the

        previews database has to be redone. Should be done in another three hours or

        so!

         

        Bob Frost

        • 961. Re: Lightroom 4 is slow
          bob frost Level 3

          From: "rpavich1234

          >It's not as if the people who are having problems have crap machines that

          >are in disrepair...

           

          I was reading a post just the other day from a Mac user who was having

          problems with LR, and it turned out to be a Permissions problem, so she had

          to 'repair permissions' to access some of her images. So her Mac was in

          'disprepair'. Permissions problems on Macs seem quite common.

           

          Bob Frost

          • 962. Re: Lightroom 4 is slow
            rpavich1234 Level 1

            I was reading a post just the other day from a Mac user who was having

            problems with LR, and it turned out to be a Permissions problem, so she had

            to 'repair permissions' to access some of her images. So her Mac was in

            'disprepair'. Permissions problems on Macs seem quite common.

            And that's supposed to be an answer? You found SOMEONE who had a permissions problem??

             

            I've never said (nor has anyone else) that machines are NOT part of the equation...only that there is no clear data that shows that "all users of low end machines in disrepair" have problems but users who keep their systems up to date and have large machines do not...

             

            In my experience in the past with software rollouts and beta programs, when there is a large cross system of users who have top performance machines, low end machines, and in between and those users are all complaining of performance...then it's the software that has some huge bug that needs to be squashed.

             

             

             

            is that more clear?

            • 963. Re: Lightroom 4 is slow
              bob frost Level 3

              From: "rpavich1234

              In my experience in the past with software rollouts and beta programs,

              when there is a large cross system of users who have top performance

              machines, low end machines, and in between and those users are all

              complaining of performance...then it's the software that has some huge bug

              that needs to be squashed.

               

              It's clear what you mean, but you are still wrong with your 'all

              complaining' IME.

               

              I doubt if it is some 'huge bug'; I would guess its a series of small bugs

              affecting different machines. If it were a huge bug, I would have expected

              it to show up on Adobe's test machines, and on their testers machines, but I

              may be wrong. None of us is infallible; we're all just humans. 

              • 964. Re: Lightroom 4 is slow
                rpavich1234 Level 1

                It's clear what you mean, but you are still wrong with your 'all complaining' IME.

                Let me be more precise.

                 

                Of the users who complain, there is a huge cross section of machine specs that doesn't point to any one hardware issue such as "low performance machines won't work with LR4"...

                 

                Is THAT more clear now????

                • 965. Re: Lightroom 4 is slow
                  Keith_Reeder Level 5

                  Drop the attitude, eh?

                   

                  Some of us have been saying all along that there's no rhyme or reason about which machines run well - and which don't - with L4 1. You're saying nothing new, and indeed, what you are saying just underpins the fundamental point of this: whatever's going on, it's not solely an Lr problem, it's not solely a spec problem, and it's not solely a user issue.

                   

                  But because some of us are having excellent user experiences with Lr 4 (even me, with "just" 8 gb and a mid range Intel quad core) the only logical way to explain why Lr won't run well on some machines is that there's something about the machine it's on, or we'd all have problems.

                  • 966. Re: Lightroom 4 is slow
                    bob frost Level 3

                    From: "rpavich1234

                    Of the users who complain, there is a huge cross section of machine

                    specs that doesn't point to any one hardware issue such as "low

                    performance machines won't work with LR4"...

                     

                    Low-performance machines will just work slower than high-performance

                    machines. LR 4.1 works fine on my Samsung laptop and on my home-built

                    desktop. Everything just all happens faster on the desktop, but LR is quite

                    usable on both. I used the laptop to demonstrate LR 4.1 a week or two ago.

                    No-one complained at the speed of LR; they were all quite impressed. But I

                    obviously wasn't batch processing thousands of images.

                     

                    Sorry we can't solve your problems, but keep trying. Instead of going back

                    to 3.6, can't you just use process 2010 in 4.1? That gives you all the other

                    benefits of 4.1 without the more intensive process 2012.

                     

                    Bob Frost

                    • 967. Re: Lightroom 4 is slow
                      rpavich1234 Level 1

                      Drop the attitude, eh?

                      Attitude?

                       

                      If you are adressing me then I don't see how you can see what "attitude" I have considering the mode of communication. I didn't call anyone names...I didn't use curse words...

                       

                      I reiterated what I meant so the poster would hopefully not misunderstand for the 3rd time.

                       

                      If you aren't addressing me then....sorry I butted in.

                      • 968. Re: Lightroom 4 is slow
                        rpavich1234 Level 1

                        Sorry we can't solve your problems, but keep trying. Instead of going back to 3.6, can't you just use process 2010 in 4.1? That gives you all the other benefits of 4.1 without the more intensive process 2012.

                        That helped SOME but not enough to cause me to keep going on LR4, though thanks for suggesting.

                         

                        I wish I could explain how different the user experience is between the two...when I use the term "lightning" in reference to LR3 I mean it's FAST...a completely transparent user experience. When I reference LR4...I mean lock ups and slowdows that last 20-30 seconds....even more...and all along the process.

                         

                        If I could even get them CLOSE I'd be happy.

                        • 969. Re: Lightroom 4 is slow
                          Victoria Bampton LR Queen Adobe Community Professional & MVP

                          Is everyone able to use PV2010 in LR4 at the same speeds as LR3? 

                           

                          Are the speed issues confined to PV2012, or is it global?

                           

                          And if you're seeing the speed issues in PV2010, is it exactly the same issues?

                          • 970. Re: Lightroom 4 is slow
                            fliplip1 Level 2

                            In my case it was the program itself. Everything from opening to moving sliders.

                             

                            Once I had changed my hardware, without doing any of the workarounds everything was flying, just like 3.6.

                            • 971. Re: Lightroom 4 is slow
                              Stephen_Carpenter

                              Victoria Bampton wrote:

                               

                              Is everyone able to use PV2010 in LR4 at the same speeds as LR3? 

                               

                              I don't see the stutter with PV2010 but it's not quite as fast as LR3.6. PV2012 does seem to be the problem which makes it a LR issue not a system issue. The new process may be more resource intensive but a Core i7 should be good enough for a product that lists the min spec as a Pentium 4.

                              • 972. Re: Lightroom 4 is slow
                                areohbee Level 6

                                rpavich1234 wrote:

                                 

                                Not sure why people trying to help bug you so much. SavagePhoto's suggestion may help some people, even if not you. Or, maybe it won't help anybody - but it seems clear to me, he is at least trying to be helpful.

                                It doesn't bug me at all that people are trying to help...what DOES bug me is someone suggesting that I buy motherboards and other hardware that works perfectly find with all the other software (and the previous version of THIS software) as some sort of fix...when clearly the issue lies with LR4.

                                 

                                I can see temp workarounds to help temporarily while Adobe fixes the problem but why should we have to revamp whole systems to accomodate LR4?

                                 

                                I'm perfectly happy running LIGHTING FAST LR3 until LR4 is servicable.

                                 

                                I wasn't suggesting that people who are happy waiting on Adobe, buy new hardware to run Lightroom, I was suggesting that people who are *not* happy waiting on Adobe, may want to engage in some trouble-shooting to potentially pass go, before Adobe comes around. Note the distinction.

                                 

                                I try not to get involved in what you should do, or shouldn't have to do...

                                 

                                Rob

                                • 973. Re: Lightroom 4 is slow
                                  rpavich1234 Level 1

                                  I wasn't suggesting that people who are happy waiting on Adobe, buy new hardware to run Lightroom, I was suggesting that people who are *not* happy waiting on Adobe, may want to engage in some trouble-shooting to potentially pass go, before Adobe comes around. Note the distinction.

                                   

                                  I try not to get involved in what you should do, or shouldn't have to do...

                                  Im sorry for snapping at you  Rob...I'm just frustrated...I'll take a break now.

                                  • 974. Re: Lightroom 4 is slow
                                    Victoria Bampton LR Queen Adobe Community Professional & MVP

                                    Stephen_Carpenter wrote:

                                     

                                    I don't see the stutter with PV2010 but it's not quite as fast as LR3.6. PV2012 does seem to be the problem which makes it a LR issue not a system issue. The new process may be more resource intensive but a Core i7 should be good enough for a product that lists the min spec as a Pentium 4.

                                     

                                    Don't worry Stephen, I'm not questioning whether the machine's up to spec or anything like that.  I'm just trying to narrow down the things that are triggering the speed issues.

                                     

                                    When you say that PV2010's not quite as fast as 3.6, can you identify what specifically is slower?  For example, it is moving from image to image?  Or the sliders don't move as smoothly?  Or what?  Does turning noise reduction off bring PV2010 back up to speed?

                                    • 975. Re: Lightroom 4 is slow
                                      areohbee Level 6

                                      rpavich1234 wrote:

                                       

                                      Im sorry for snapping at you  Rob...I'm just frustrated...I'll take a break now.

                                       

                                      I understand your frustration. I (and plenty of other folk) had major performance issues with Lightroom 3 when it first came out, which were mostly solved @Lr3.2, or Lr3.3, if I remember correctly. In my case, at first, I was having terribly abnormal performance - optimizing the catalog solved a surprisingly large amount of problems, but it was still abnormally poor (I'm "sure" it wasn't the optimization per-se that was responsible for the improvement, but some bug that was rendered toothless in the process). I was running it on 2GHz dual core, with 3.5GB usable RAM - 32-bit OS. Installing a new 4-core motherboard with 8GB, 3.2GHz, 64-bit OS made it about an order of magnitude faster. Note: this is *more* improvement than can be justified by sheer hardware speed (e.g. much more relative improvement than any other app), thus I assume something that shook out differently in the course of the upgrade was responsible for the remainder of the improvement.

                                       

                                      I've been luckier so far with Lr4, knock on wood.

                                       

                                      Rob

                                      • 976. Re: Lightroom 4 is slow
                                        Stephen_Carpenter Level 1

                                        Victoria Bampton wrote:

                                         

                                        When you say that PV2010's not quite as fast as 3.6, can you identify what specifically is slower?  For example, it is moving from image to image?  Or the sliders don't move as smoothly?  Or what?  Does turning noise reduction off bring PV2010 back up to speed?

                                         

                                        Using spot removal on the same problem image each spot takes ~0.2s on LR3.6, ~0.5s on LR4.1 PV2010 and ~1s on LR4.1 PV2012.

                                        • 977. Re: Lightroom 4 is slow
                                          Victoria Bampton LR Queen Adobe Community Professional & MVP

                                          Stephen_Carpenter wrote:

                                          Using spot removal on the same problem image each spot takes ~0.2s on LR3.6, ~0.5s on LR4.1 PV2010 and ~1s on LR4.1 PV2012.

                                           

                                          Now THAT is a useful stat, thanks Stephen.  Is everyone else seeing the same slowdown at the same point?

                                          • 978. Re: Lightroom 4 is slow
                                            Bob_Peters Level 3

                                            I am limping along on a 5-year-old Mac Pro:

                                             

                                            OS X 10.7.4

                                            2x, 2.66GHz XEON (2 real cores, 2 virtual)

                                            9 GB RAM

                                            128GB SSD

                                            2x 1TB Seagate

                                             

                                            I chose a sample of 20, D800 NEFs and measured the time to generate the 1:1 previews after clearing the cache and discarding the existing 1:1 previews.

                                             

                                            Lightroom 4.1 for both measurements.

                                             

                                            PV2010    8.9 sec / NEF

                                            PV2012  11.65 sec / NEF

                                             

                                            The other strange thing (to me, at least) is that zooming to 1:1 in the Develop module in PV2012 is very fast while the same operation on the same image takes several seconds in the Library module.  And when zooming to 1:1 all 4 cores participate in the Develop module but only 1 core in the Library module.

                                            • 979. Re: Lightroom 4 is slow
                                              areohbee Level 6

                                              Bob_Peters wrote:

                                               

                                              Lightroom 4.1 for both measurements.

                                               

                                              PV2010    8.9 sec / NEF

                                              PV2012  11.65 sec / NEF

                                               

                                              This matches expectation for normal performance on a modest machine such as yours, in my experience.

                                               

                                              PV2012 requires more CPU cycles...

                                               

                                               

                                               

                                              Bob_Peters wrote:

                                               

                                              The other strange thing (to me, at least) is that zooming to 1:1 in the Develop module in PV2012 is very fast while the same operation on the same image takes several seconds in the Library module.  And when zooming to 1:1 all 4 cores participate in the Develop module but only 1 core in the Library module.

                                               

                                              That sounds abnormal to me. Zooming in library module is nearly instantaneous for me if requisite preview is available, and if not it takes about 3 seconds (for moderately edited image, 2 seconds with no adjustments) (until loading indicator extinquished), but *all* (4) cores are maxed out while it's doing it. win7/64, 3.2GHz, 8GB, AMD CPU.

                                               

                                               

                                              Rob

                                              • 980. Re: Lightroom 4 is slow
                                                Bob_Peters Level 3

                                                Zooming to 1:1 in the Library is abnormal.  Unfortunately, I have yet to find anybody who can indicate how to find the source of the problem.

                                                • 981. Re: Lightroom 4 is slow
                                                  SavagePhoto Level 1

                                                  Does anyone want to guess why Lightroom is looking at these maybe its slow because its looking at s*** it has no buisness looking at.

                                                   

                                                  ImagePIDTypeHandle Name
                                                  lightroom.exe6096FileC:\Users\xxxx\AppData\Local\Microsoft\Windows\History\History.IE5\index.dat
                                                  lightroom.exe6096FileC:\Users\xxxx\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\index.dat
                                                  l


                                                  lightroom.exe6096FileC:\Users\xxxx\AppData\Roaming\Microsoft\Windows\Cookies\index.dat
                                                  • 982. Re: Lightroom 4 is slow
                                                    LRuser24 Level 2

                                                    SavagePhoto wrote:

                                                     

                                                    ...its looking at s*** it has no buisness looking at.

                                                    That's probably because the map module uses the operating system services (= internet explorer DLLs) to load the map tiles from google maps (just like geosetter does). Not sure whether or not that may be the cause of the performance problems.

                                                    • 983. Re: Lightroom 4 is slow
                                                      SavagePhoto Level 1

                                                      cookies and history and temp files? seems strange that it would need these at all. I dont really believe that it has anything to do with the speed of LR but I also dont think it should be seeking access for these index files. I am trying to turn off virus protection for all the files LR uses but there is no way I am turning VP off for any internt files/folders.

                                                      • 984. Re: Lightroom 4 is slow
                                                        bob frost Level 3

                                                        From: "Bob_Peters

                                                        Zooming to 1:1 in the Library is abnormal.  Unfortunately, I have yet to

                                                        find anybody who can indicate how to find the source of the problem.

                                                         

                                                        AFAIK,

                                                         

                                                        Zooming to 1:1 in Library uses the 1:1 previews you have already created and

                                                        should therefore be quick. If you haven't created 1:1 previews, then they

                                                        have to be made on the spot and that will cause a delay.

                                                         

                                                        Zooming to 1:1 in Develop, on the other hand, always re-renders the file, so

                                                        there will always be a delay. It doesn't use the previews, even if you have

                                                        them.

                                                         

                                                        Bob Frost

                                                        • 985. Re: Lightroom 4 is slow
                                                          Jim Wilde Adobe Community Professional

                                                          Publish Services? Update checking? Online Help?

                                                          • 986. Re: Lightroom 4 is slow
                                                            bob frost Level 3

                                                            From: "Stephen_Carpenter

                                                            Using spot removal on the same problem image each spot takes ~0.2s on

                                                            LR3.6, ~0.5s on LR4.1 PV2010 and ~1s on LR4.1 PV2012.

                                                             

                                                            Doesn't the time depend on what you have done before the spot removal?

                                                             

                                                            Bob frost

                                                            • 987. Re: Lightroom 4 is slow
                                                              bob frost Level 3

                                                              Bob_Peters wrote:

                                                               

                                                              I am limping along on a 5-year-old Mac Pro:

                                                               

                                                               

                                                              I chose a sample of 20, D800 NEFs and measured the time to generate the 1:1 previews after clearing the cache and discarding the existing 1:1 previews.

                                                               

                                                              Lightroom 4.1 for both measurements.

                                                               

                                                              PV2010    8.9 sec / NEF

                                                              PV2012  11.65 sec / NEF

                                                               

                                                               

                                                              But you are using D800 nefs! My nefs vary from 10MB (D100) to 40MB (D800 lossless compressed), so the D800s are going to take at least four times as long as the D100s. My D800 nefs take about 4 secs each to render on a fast new desktop in 4.1 using 2012.

                                                               

                                                              Bob Frost

                                                              • 988. Re: Lightroom 4 is slow
                                                                bob frost Level 3

                                                                SavagePhoto wrote:

                                                                 

                                                                Does anyone want to guess why Lightroom is looking at these maybe its slow because its looking at s*** it has no buisness looking at.

                                                                 

                                                                ImagePIDTypeHandle Name
                                                                lightroom.exe6096FileC:\Users\xxxx\AppData\Local\Microsoft\Windows\History\History.IE5\inde x.dat
                                                                lightroom.exe6096FileC:\Users\xxxx\AppData\Local\Microsoft\Windows\Temporary Internet Files\Content.IE5\index.dat
                                                                l


                                                                lightroom.exe6096FileC:\Users\xxxx\AppData\Roaming\Microsoft\Windows\Cookies\index.dat

                                                                 

                                                                What were you doing in LR when you saw this? I've never seen LR.exe looking at these files, but maybe I've missed it.

                                                                 

                                                                Bob Frost

                                                                • 989. Re: Lightroom 4 is slow
                                                                  Stephen_Carpenter Level 1

                                                                  bob frost wrote:

                                                                   

                                                                  Zooming to 1:1 in Library uses the 1:1 previews you have already created and

                                                                  should therefore be quick. If you haven't created 1:1 previews, then they

                                                                  have to be made on the spot and that will cause a delay.

                                                                   

                                                                  Zooming to 1:1 in Develop, on the other hand, always re-renders the file, so

                                                                  there will always be a delay. It doesn't use the previews, even if you have

                                                                  them.

                                                                   

                                                                  Yes but if you make any changes in develop then in library mode it will have to re-render the 1:1 preview when you look at it at 100%. This operation takes almost twice as long as rendering a 100% view in develop. I believe this is what the other Bob was referring to.

                                                                  • 990. Re: Lightroom 4 is slow
                                                                    bob frost Level 3

                                                                    From: "Stephen_Carpenter

                                                                    Yes but if you make any changes in develop then in library mode it will

                                                                    have to re-render the 1:1 preview when you look at it at 100%. This

                                                                    operation takes almost twice as long as rendering a 100% view in develop.

                                                                    I believe this is what the other Bob was referring to.

                                                                     

                                                                    Ah, I see what you/he means. On my machine I wouldn't describe this

                                                                    difference as 'abnormal' because it is just under 3 secs in Develop and

                                                                    about 4 secs back in Library (with D800 nefs). Not a significant difference,

                                                                    but if his D800 nefs are taking 12 secs in Develop, then I can't see any way

                                                                    round needing a faster computer to cope with those big nefs.

                                                                     

                                                                    Bob Frost

                                                                    • 991. Re: Lightroom 4 is slow
                                                                      areohbee Level 6

                                                                      What's abnormal, is that it only uses one CPU (zooming to 1:1 and having to render in Library module).

                                                                       

                                                                      I mean, maybe that's normal on some machines, but on mine all 4 CPUs are used @100% (win7/64, AMD).

                                                                       

                                                                      R

                                                                      • 992. Re: Lightroom 4 is slow
                                                                        bob frost Level 3

                                                                        From: "Rob Cole

                                                                        What's abnormal, is that it only uses one CPU (zooming to 1:1 and having

                                                                        to render in Library module).

                                                                         

                                                                        I mean, maybe that's normal on some machines, but on mine all 4 CPUs are

                                                                        used.

                                                                         

                                                                        OK found his original post. If it were me, I would turn off hyperthreading

                                                                        in whatever Macs use for a Bios, and see if that makes any difference. My

                                                                        Win7 is the same as yours; all cores used in rendering in Develop and

                                                                        Library.

                                                                         

                                                                        Is this a general problem on Macs?

                                                                         

                                                                        Bob Frost

                                                                        • 993. Re: Lightroom 4 is slow
                                                                          Geoff the kiwi Adobe Community Professional & MVP

                                                                          My i7MBP uses 4 cores for rendering.

                                                                          I don't know if bios can be changed in a Mac, who would want to??

                                                                          • 994. Re: Lightroom 4 is slow
                                                                            bob frost Level 3

                                                                            From: "Geoff the kiwi

                                                                            I don't know if bios can be changed in a Mac, who would want to??

                                                                             

                                                                            Someone whose mac isn't working properly?

                                                                             

                                                                            Bob Frost

                                                                            • 995. Re: Lightroom 4 is slow
                                                                              Bob_Peters Level 3

                                                                              Rob Cole wrote:

                                                                               

                                                                              What's abnormal, is that it only uses one CPU (zooming to 1:1 and having to render in Library module).

                                                                               

                                                                              I mean, maybe that's normal on some machines, but on mine all 4 CPUs are used @100% (win7/64, AMD).

                                                                               

                                                                              R

                                                                               

                                                                              Yes!  And the fact that it takes longer to see an existing 1:1 preview in the Library module that it does in the Develop.

                                                                              • 996. Re: Lightroom 4 is slow
                                                                                Bob_Peters Level 3

                                                                                bob frost wrote:

                                                                                 

                                                                                From: "Stephen_Carpenter

                                                                                Yes but if you make any changes in develop then in library mode it will

                                                                                have to re-render the 1:1 preview when you look at it at 100%. This

                                                                                operation takes almost twice as long as rendering a 100% view in develop.

                                                                                I believe this is what the other Bob was referring to.

                                                                                 

                                                                                Ah, I see what you/he means. On my machine I wouldn't describe this

                                                                                difference as 'abnormal' because it is just under 3 secs in Develop and

                                                                                about 4 secs back in Library (with D800 nefs). Not a significant difference,

                                                                                but if his D800 nefs are taking 12 secs in Develop, then I can't see any way

                                                                                round needing a faster computer to cope with those big nefs.

                                                                                 

                                                                                Bob Frost

                                                                                 

                                                                                I agree.  I had a 6-core MacPro for 5 days but it only gave a factor of 2 improvement which wasn't worth $3k.  I returned it to Apple on Tuesday.

                                                                                • 997. Re: Lightroom 4 is slow
                                                                                  Bob_Peters Level 3

                                                                                  bob frost wrote:

                                                                                   

                                                                                  From: "Rob Cole

                                                                                  What's abnormal, is that it only uses one CPU (zooming to 1:1 and having

                                                                                  to render in Library module).

                                                                                   

                                                                                  I mean, maybe that's normal on some machines, but on mine all 4 CPUs are

                                                                                  used.

                                                                                   

                                                                                  OK found his original post. If it were me, I would turn off hyperthreading

                                                                                  in whatever Macs use for a Bios, and see if that makes any difference. My

                                                                                  Win7 is the same as yours; all cores used in rendering in Develop and

                                                                                  Library.

                                                                                   

                                                                                  Is this a general problem on Macs?

                                                                                   

                                                                                  Bob Frost

                                                                                   

                                                                                  My MacPro has 4, real cores.  As far as I know those old XEON processors knew nothing about hyper-threading.

                                                                                   

                                                                                  The problem with the MacPro is that it has been neglected by Apple.  Getting a factor of 2 speed improvement over a span of 5 years is pitiful.

                                                                                  • 998. Re: Lightroom 4 is slow
                                                                                    Bob_Peters Level 3

                                                                                    Geoff the kiwi wrote:

                                                                                     

                                                                                    My i7MBP uses 4 cores for rendering.

                                                                                    I don't know if bios can be changed in a Mac, who would want to??

                                                                                     

                                                                                    How many cores are used to view an existing 1:1 preview by zooming to 1:1 in the Library module?

                                                                                     

                                                                                    I'm getting closer and closer to replacing my 2011, 13-inch MacBook Air with the new MacBook Pro, using that to drive my main monitor and mounting the MacPro as a bank of external drives.  And then wait for Apple to clean up this mess in (Calendar?  Fiscal?) 2013.  That littli MacBook Air is as "fast" as my MacPro

                                                                                    • 999. Re: Lightroom 4 is slow
                                                                                      SavagePhoto Level 1

                                                                                      Bob I was just opening LR when I started to access these files.... Lightroom was opening to the Library Grid.

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