Why isn't my iMac using all of my RAM

Hi,
I've recently upgraded the RAM in my iMac (System details below) from 4GB to 12GB as it was running a little slow, I have found this has made no difference and at times seems even slower.
I was doing some work with video files and was converting a video using MPEG Streamclip and so this would be quite a memory intensive task. As it was progressing very slowly I checked my Activity Monitor and it was only using 4.49GB of the memory overall and of that only 97MB seemed to be dedicated to the MPEG Streamclip task.
Does anyone know why the system isn't using the rest of the RAM that is installed?
The highest usage process is 'kernal_task' with 838.9MB but I don't know what that is, There are a lot of items in the process list but I don't know how to remove them or even if I can or should remove them?
Any help would be greatly appreciated
Thanks
Dan
System Details:
iMac (21.5-inch, Mid 2010)
Processor - 3.06 GHz Intel Core i3
Memory - 12 GB 1333 MHz DDR3
OSX - Yosemite 10.10.2

Thanks for the help:
Problem description:
I checked my Activity Monitor and it was only using 4.49GB of the 12GB memory overall
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    iMac (21.5-inch, Mid 2010) (Technical Specifications)
    iMac - model: iMac11,2
    1 3.06 GHz Intel Core i3 CPU: 2-core
    12 GB RAM Upgradeable
        BANK 0/DIMM0
            4 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            4 GB DDR3 1333 MHz ok
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            2 GB DDR3 1333 MHz ok
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       119%    MPEG Streamclip
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    129 MB    MPEG Streamclip
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Why isn't Oracle using my indexes to join 2 big tables? I ran statistics last night before kicking off this job. I don't want to have to use hints.
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TRANSACTION has an index on STAGING_RECORD_ID
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613071
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Execution Plan
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| Id | Operation                     | Name                    | Rows | Bytes |TempSpc| Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT              |                         |     1 |   223 |       |   144K (6)| 00:29:00 |
|   1 | SORT ORDER BY                |                         |     1 |   223 |       |   144K (6)| 00:29:00 |
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TABLE "N98991"."EVAL" OF XMLTYPE
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TIME ZONE))),
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    PASSING BY VALUE SYS_MAKEXML(128,"XMLDATA") RETURNING CONTENT ),0,0,
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PCTFREE 0 PCTUSED 80 INITRANS 4 MAXTRANS 255 NOCOMPRESS LOGGING STORAGE
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TABLESPACE "ACME_DATA" ; Sample cleansed xml snippet:
<?xml version = '1.0' encoding = 'UTF-8' standalone = 'yes'?><eval createdById="xxxx" hhhhMemberId="37e6f05a-88dc-41e9-a8df-2a2ac6d822c9" category="eeeeeeee" eval_dt="2012-02-11T23:47:02.645Z" evalId="12e007f5-b7c3-4da2-b8b8-4bf066675d1a" xmlns="http://www.xxxxx.com/vvvv/domains/eval/2010/03" xmlns:ns2="http://www.cigna.com/nnnn/domains/derived/fact/2010/03" xmlns:ns3="http://www.xxxxx.com/vvvv/domains/common/2010/03">
   <derivedFacts>
      <ns2:derivedFact>
         <ns2:defId>12345</ns2:defId>
         <ns2:defUrn>urn:mmmmrunner:Medical:Definition:DerivedFact:52657:1</ns2:defUrn>
         <ns2:factSource>tttt Member</ns2:factSource>
         <ns2:origInferred_dt>2012-02-11T23:47:02.645Z</ns2:origInferred_dt>
         <ns2:factValue>
            <ns2:type>boolean</ns2:type>
            <ns2:value>true</ns2:value>
         </ns2:factValue>
      </ns2:derivedFact>
      <ns2:derivedFact>
         <ns2:defId>52600</ns2:defId>
         <ns2:defUrn>urn:ddddrunner:Medical:Definition:DerivedFact:52600:2</ns2:defUrn>
         <ns2:factSource>cccc Member</ns2:factSource>
         <ns2:origInferred_dt>2012-02-11T23:47:02.645Z</ns2:origInferred_dt>
         <ns2:factValue>
            <ns2:type>string</ns2:type>
            <ns2:value>null</ns2:value>
         </ns2:factValue>
      </ns2:derivedFact>
      <ns2:derivedFact>
         <ns2:defId>59543</ns2:defId>
         <ns2:defUrn>urn:ddddunner:Medical:Definition:DerivedFact:52599:1</ns2:defUrn>
         <ns2:factSource>dddd Member</ns2:factSource>
         <ns2:origInferred_dt>2012-02-11T23:47:02.645Z</ns2:origInferred_dt>
         <ns2:factValue>
            <ns2:type>string</ns2:type>
            <ns2:value>INT</ns2:value>
         </ns2:factValue>
      </ns2:derivedFact>
            With the repeating <ns2:derivedFact> element continuing under the <derivedFacts>The Oracle XML DB Developer's Guide 11g Release 2 isn't helping much...
Any assitance much appreciated.
Regards,
Rick Blanchard

odie 63, et. al.;
Attached is the reworked select query, xmlindex, and 2ndary indexes. Note: though namespaces are used; we're not registering any schema defns.
SELECT /*+ NO_USE_HASH(eval) +/ --/*+ NO_QUERY_REWRITE no_parallel(eval)*/
eval_xml.eval_catt, df.defid FROM eval,
--df.defid FROM eval,
XMLTable(XMLNamespaces( DEFAULT 'http://www.cigna.com/acme/domains/eval/2010/03',
                        'http://www.cigna.com/acme/domains/derived/fact/2010/03' AS "ns7" ),
        '/eval' passing eval.object_value
         COLUMNS
           eval_catt VARCHAR2(50) path '@category',
           derivedFact XMLTYPE path '/derivedFacts/ns7:derivedFact')eval_xml,
XMLTable(XMLNamespaces('http://www.cigna.com/acme/domains/derived/fact/2010/03' AS "ns7",
                          DEFAULT 'http://www.cigna.com/acme/domains/eval/2010/03'),
        '/ns7:derivedFact' passing eval_xml.derivedFact
         COLUMNS
           defid VARCHAR2(100) path 'ns7:defId') df
WHERE df.defid IN ('52657','52599') AND eval_xml.eval_catt LIKE 'external';
--where df.defid = '52657';
SELECT /*+ NO_USE_HASH(eval +/ --/*+ NO_QUERY_REWRITE no_parallel(eval)*/
eval_xml.eval_catt, df.defid FROM eval,
--df.defid FROM eval,
XMLTable(XMLNamespaces( DEFAULT 'http://www.cigna.com/acme/domains/eval/2010/03',
                        'http://www.cigna.com/acme/domains/derived/fact/2010/03' AS "ns7" ),
        '/eval' passing eval.object_value
         COLUMNS
           eval_catt VARCHAR2(50) path '@category',
           derivedFact XMLTYPE path '/derivedFacts/ns7:derivedFact')eval_xml,
XMLTable(XMLNamespaces('http://www.cigna.com/acme/domains/derived/fact/2010/03' AS "ns7",
                          DEFAULT 'http://www.cigna.com/acme/domains/eval/2010/03'),
        '/ns7:derivedFact' passing eval_xml.derivedFact
         COLUMNS
           defid VARCHAR2(100) path 'ns7:defId') df
WHERE df.defid IN ('52657','52599') AND eval_xml.eval_catt LIKE 'external';
--where df.defid = '52657'; create index defid_2ndary_ix on eval_idx_tab_II (defID);
     eval_catt VARCHAR2(50) path ''@CATEGORY''');
create index eval_catt_2ndary_ix on eval_idx_tab_I (eval_catt);The xmlindex is getting picked up but a couple of problesm:
1. In the developemnt environment, no xml source records for defid '52657' or '52599' are being displayed - just an empty output set occurs; in spite of these values being present and stored in the source xml.
This really has me stumped, as can query the eval table to see the actual xml defid vaues '52657' and '52599' exist. Something appears off with the query - which didn't return records even before the corrresponding xml index was created.
2. The query still performs slowly, in spite of using the xmlindex. The execution plan shows a full table scan of eval occurring whether or not a HASH JOIN or MERGE JOIN (gets used in place of the HASH JOIN when the NO_USE_HASH(eval) int is used.
3. Single column 2ndary indexes created respectively for eval_catt and defid are not used in the execution plan - which may be expected upon further consideration.
In the process of running stats at this moment, to see if performance improves....
At this point, really after why item '1.' is occurring?
Edited by: RickBlanchardSRSCigna on Apr 16, 2012 1:33 PM

Why Doesn't MS Project use all of a resource's availability when resource levelling is applied?

Hi,
We are using MSProject 2010 and Project Server 2010 with Enterprise resources. All resources on all projects in the enterprise are shared resources. We are finding that after resource levelling is applied to the project some resources are only
being assigned a fraction of their total availability, and in some cases Project will assign 0 hours to a resource for several consecutive weeks even though the resource has capacity for the week the task is scheduled to start.
For example: Let's say we have a task that is scheduled to start on 1-20-14. The task is a 112 hours of effort with no constraints and one resource assigned to it. The resource is available 40 hours per week for the next 4 weeks. After resource
levelling I would expect Project to assign the resource as follows: 40 hours in week 1, 40 hours the next week and 32 hours the next week, for a total of 112 hours. Instead, Project does not assign the resource to the task until week 4 (even
though the resource has capacity on the start date of the task) and pushes the finish date out. In some weeks the resource has 0h hours showing in the timephased grid on the Resource Usage sheet. We have experimented with the levelling settings and it
does not seem to matter which boxes are checked, but following is our preferred settings:
1. Levelling Calculations set to Manual
2. Look for overallocations on a day by day basis
3. Clear levelling values before levelling is CHECKED
4. Level entire project is selected.
5. Levelling order is Priority,Standard
6. Level only within available slack is CHECKED
7. Levelling can adjust individual assignments on a task is CHECKED
8. Levelling can create splits in remaining work is UNCHECKED
9. Level resources with the proposed booking type is UNCHECKED
10. Level manually scheduled tasks is CHECKED.
Does anyone have any ideas about why Project is not using the resource's available capacity?
Thanks, Judy
Judy Washington

Hi Judy,
The resource leveling command is not a resource optimization tool. It's only job is to resolve resource overallocations by delaying tasks. It will not:
Change resource assignment units to tasks.
Ensure the resource is "fully" utilized.
For example:
Resource with max units of 100% (the default).
Task A starts on 20 January until 22 January and the resource is assigned at 75%.
Task B starts on 21 January until 23 January and the resource is assigned at 50%
The resource is overallocated on Tuesday (peak = 125%) and Wednesday (peak = 125%).
Leveling produces this result:
Project did not drop the assignment to Task B to 25% to allow it to continue while Task A was going on -- it simply delayed B (at 50%) until A was scheduled to finish.

Imac is using all 512mb of ram.

Hello, I have the Intel Imac 17 inch with 512 mb of ram. Ive had it for about 6-7 months now with no problems whatsoever. Today I was surfing the web looking for themes and such to customize my mac. When I skinned Itunes and restarted it, something strange occured. I recieved a message that said "The iTunes application could not be opened. There is not enough memory available." I thought to myself, thats weird, normally theres never more then half used up. So I opened Activity Monitor and these were the results: Wired: 79.12mb, Active: 270.61mb, Inactive: 152.04mb, Used: 500.41mb, and Free: 14.92mb. I have never experienced this before and am extremely worried that my ram is messed up. The results taken by Activity Monitor were determined by itself and Safari being opened. Please reply quickly, I can not do anything right now.

Thank you very much for replying so quickly. In this case it was the skin, I had to remove the skin and completely reinstall iTunes. My ram usage is back to where it should be. Although I agree that I need to upgrade ram I will not. I am buying the new Intel core 2 duo 24 inch Imac soon so I just upgrade when I get it. The only thin that I don't get is that peoples automatic response is to upgrade the ram. Well last night when I was having the issue I got frustrated and wanted to test the computers limits. I clicked on every app in the Dock (except iTunes) and with about 30 seconds of lag eevrything opened and ran. Of course it was slower then usual, but 512 mb can handle enough for the average user. I was just curious why everyones response is to upgrade ram.

Is there an issue with the new(2012-2013) 27" iMac using all bandwidth?

Hi, I just started up the new comp and my roommate began to complain about having no to little bandwidth.
I am using the Mac Airport Extreme with a strong internet connection. My Macbook Pro (2009 model) has no issues at all and we can have a wii system, as well as my roomie's desktop and my laptop streaming all at the same time with no lag in the connection. As soon as I went to download a file from the web with the new iMac all connections dropped.
I'm curious if anyone else is having these issues and what/if anything is being done to resolve it?
Thanks,
Ryn

Hi Ryn, this has worked for a few...
Make a New Location, Using network locations in Mac OS X ...
http://support.apple.com/kb/HT2712
10.7 & 10.8…
System Preferences>Network, top of window>Locations>Edit Locations, little plus icon, give it a name.
10.5.x/10.6.x/10.7.x instructions...
System Preferences>Network, click on the little gear at the bottom next to the + & - icons, (unlock lock first if locked), choose Set Service Order.
The interface that connects to the Internet should be dragged to the top of the list.
Instead of joining your Network from the list, click the WiFi icon at the top, and click join other network. Fill in everything as needed.
For 10.5/10.6, System Preferences>Network, unlock the lock if need be, highlight the Interface you use to connect to Internet, click on the advanced button, click on the DNS tab, click on the little plus icon, then add these numbers...
208.67.222.222
208.67.220.220
Click OK.

Why isn't store credit used for family purchases instead of billing to credit card?

why arent family purchases dedcuted from store credit instead of billing the credit card?

Hello, Musket451.
Thank you for visiting Apple Support Communities.
Here is some information that explains how iTunes purchases are billed when using Family Sharing.
How are Family Sharing purchases billed?
When you initiate a new purchase, it will be billed directly to the family organizer's account, unless you have gift or store credit. First, your store credit will be used to pay the partial or total bill. The remainder will bill to the family organizer. iTunes Store credit on your account isn't shared with other family members. So if the family organizer has a $50 credit on their account and another family member initiates a purchase, it won't deduct from the organizer's iTunes Store credit, but will bill the organizer's credit or debit card.
The family organizer will get the receipts for any of their family member's purchases.
How iTunes Store purchases are billed
http://support.apple.com/kb/HT5582
Cheers,
Jason H.

Why isn't my query using the index?

I have a query that inserts values for engines in a grid; it uses a static date table to determine the day in week, or
week in year (depending on different standards, the DBA can configure this table to their business's likings). I have
two indexes on this table:
create table d_date (
     date_key number(5) not null,
     sql_calendar_date timestamp(3) null,
     year_id number(5) null,
     month_id number(3) null,
     day_id number(3) null,
     year_end_biz_date timestamp(3) null,
     qtr_end_biz_date timestamp(3) null,
     month_end_biz_date timestamp(3) null,
     week_end_biz_date timestamp(3) null,
     quarter_id number(3) null,
     week_id number(3) null,
     day_in_year number(5) null,
     day_in_month number(3) null,
     day_in_week number(3) null,
     month_name char(3) null,
     day_in_week_name char(3) null,
     month_type_code char(1) null,
     week_type_code char(1) null,
     date_type_code char(1) null,
     weekend_flag char(1) null,
     holiday_flag char(1) null,
     from_datetime timestamp(3) null,
     to_datetime timestamp(3) null,
     current_flag char(1) null,
     constraint d_date_pkey primary key (date_key)
     ) tablespace dim;
create index d_date_dy on d_date(year_id, day_in_year) tablespace_dim_idx;
create index d_date_ww on d_date(year_id, week_id) tablespace_dim_idx;Now, when I run a query to insert the week id into a table based on two values, the year_key and day_in_year_key,
it should use the d_date_dy index correct?
Here is what the query looks like:
INSERT INTO F_ENGINE (YEAR_KEY,MONTH_KEY,WEEK_IN_YEAR_KEY,DAY_IN_YEAR_KEY,DAY_IN_MONTH_KEY,HOUR_IN_DAY_KEY, Q_HOUR_IN_DAY_KEY,
GRID_KEY,ENGINE_KEY,TIME_STAMP,ENGINE_CPU_UTIL,ENGINE_CPU_GRID_UTIL,MEMORY_TOTAL_BYTE, MEMORY_FREE_BYTE,DISK_FREE_MEGABYTE,
PROCESS_COUNT,ENGINE_ID,GRID_ID,GRID_NAME,BATCH_ID,RECORD_VIEWABLE_F)
SELECT EXTRACT(YEAR FROM START_DATETIME),EXTRACT(MONTH FROM START_DATETIME), DD.WEEK_ID,
TO_NUMBER(TO_CHAR(START_DATETIME, 'DDD')), EXTRACT(DAY FROM START_DATETIME),EXTRACT(HOUR FROM START_DATETIME),
FLOOR(EXTRACT(MINUTE FROM START_DATETIME)/15)*15,DG.GRID_KEY,DE.ENGINE_KEY, START_DATETIME,CPU_UTIL,DS_CPU,MEMORY,
FREE_MEMORY,FREE_DISK,PROCESSES,ID,PE.GRID,DG.GRID_NAME,:B1 ,1
FROM P_ENGINE PE, D_GRID DG, D_ENGINE DE, D_DATE DD
WHERE PE.GRID = DG.GRID_ID AND DG.CURRENT_FLAG = 'Y' AND PE.ID = DE.ENGINE_ID AND DE.GRID_KEY = DG.GRID_KEY AND
DE.CURRENT_FLAG = 'Y' AND PE.BATCH_ID = :B1 AND DD.YEAR_ID = EXTRACT(YEAR FROM START_DATETIME) AND
DD.DAY_IN_YEAR = TO_NUMBER(TO_CHAR(START_DATETIME,'DDD'))
ORDER BY EXTRACT(YEAR FROM START_DATETIME),EXTRACT(MONTH FROM START_DATETIME),
EXTRACT(DAY FROM START_DATETIME),EXTRACT(HOUR FROM START_DATETIME),FLOOR(EXTRACT(MINUTE FROM START_DATETIME)/15)*15,
DG.GRID_KEY,DE.ENGINE_KEY
Here is the explain plan:
Operation Object Object Type Order Rows Size (KB) Cost Time (sec) CPU Cost I/O Cost
INSERT STATEMENT
SORT ORDER BY
     HASH JOIN
       HASH JOIN
         HASH JOIN
          TABLE ACCESS FULL D_GRID TABLE 1 2 0.316 3 1 36887 3
          TABLE ACCESS FULL D_ENGINE TABLE 2 10 0.410 3 1 42607 3
         PARTITION LIST SINGLE   5 1434 344.496 9 1 2176890 9
          TABLE ACCESS FULL P_ENGINE TABLE 4 1434 344.496 9 1 2176890 9
            TABLE ACCESS FULL D_DATE TABLE 7 7445 283.550 19 1 3274515 18Now it is obviously not using the index for the d_date table since it is doing a full table access.
Does this have something to do with the fact that I am using extract(), to_number(), to_char() functions in my WHERE clause that it is not allowing the use of the index?
Any help would be greatly appreciated. Thanks.
-Tim

It's difficult to tell just from this. For one thing, you didn't post your query using the forum format tags, so it's hard to read and you didn't post your Oracle version.
In the query, you don't always prefix columns with the table alias. That makes it impossible for us (and maintainers of this code) to know at a glance which table a column is in.
It's possible that performing functions on a column will disable the index. Do your other tables have indexes? Do you have updated statistics on all the tables?
The main reason the optimizer will not use an index is because it thinks it cheaper not to.

Why isn't my iMac compatible with airplay mirroring with the new Mountain Lion upgrade?

Yesterday, I upgraded to the newly released Max OS X Mountain Lion, mainly because I was very interested in the airplay mirroring function that Mountain Lion brings to the table. To my dismay, however, I found that AirPlay is not available on my device due to the fact that my iMac is from mid/late 2010 and that function only works on mid-2011 and newer.
Why is it that my 21.5" iMac running a core i3 processor is not deemed worthy enough to have this function. I honestly feel a bit robbed that it is not included in my $19.99. Why am I paying the same price as someone else who is getting that key feature.
I love Apple to death. I've had many of their products, but I really feel as though this is unfair, and that I have been mislead.

I don't know why it does not work - assuming it has something to do with firmware, EFI, or similar; however, if you want Apple to hear you, consider filing feedback here since these are strictly user to user forums:
http://www.apple.com/feedback/

Why isn't Premiere Pro using my renders in export?

I have been clicking "Use Previews" in Media encoder to speed up export, but it doesn't seem to make a difference, it still takes half an hour to export 3 minutes no matter what I do. Since it is crashing when I try to export more then 3 minutes and also crashes when i try to render more than 3 minutes, I am really slogging through my long project an it's quite frustrating.

Hi Steven,
Here is some more detail on my project:
---what is your media,
I am editing avi DV files (shot in 3x4 screen ratioo) layered with bmp file graphics (varied sizes) and avi animations, compositing to a standard DV widescreen NTSC format, lower field is chosen and if that is the mistake, I chose that on a whim. The dv was shot in 3x4 format and I am repositioning it.
---what are the rest of your settings, what are your preview files using for a codec?
the previews are rendered in the codec "NTSC dv widescreen".
When I choose the same for export, it accepts that. When I click on "use rendered previews" the codec changes to "custom". That seems fishy to me because the source film is the same codec too.
I have set my preferences within the project.
I have cleared the media cashe drawer within the preferences and rebooted the computer to no improvment except that it seems now I was able to update the program. Yesterday the updater wasn't working. But the updates did not fix my problems.
As I am in the middle of a new export attempt I have not checked further but I will when it finishes and crashes again! Thanks for your input.

Why is adobe reader XI using all my resources and keeps locking up?

Win8,dual core2.5ghz,6gig mem, Fire fox. Can't use a product that preforms like this.

Using what resources?
Locking up how; standalone Reader, or browser plugin? In what browser?

HT4619 Why isn't my IMac microphone not working suddenly no one can hear me on FaceTime or Skype. Pls help

I always use FaceTime and Skype.
Today my voice could not be heard on either program.
I could hear fine.
The other party could not hear me. My other sounds worked fine.
Please can you tell me how to fix this audio problem with FaceTime???

Long shot, but...
Open Audio Midi Setup in Applications>Utilities, see the input & output options & KHz setting there, some things will change it for their own use, then not set it back.

Safari is using all my free Ram and resources

Ever since Safari 5.1 and the emergance of "Safari Web Content" safari now takes sometimes up to 2GB of Ram! Thats more than every other program running combined! I am then left with ~10-50 mb of ram to share with Dreamweaver Photoshop and several other programs.
Once it bogs down all my resources it will require me to reload all my pages before I can use any of my pages. Once it returns its still using just about as much resources.
-First of all it is not my extenstions or plug-ins, (I never had any till just recently)
-I am running safari on just a few windows on several desktops.
-I almost never experience this amount of ram usage before 5.1
I have seen others experience this and the only viable solution seems to be "just close down safari and open it back up"
I am developing for the web and keep several pages open on multiple desktops for different reasons, when I close down Safari all my windows from all my other desktops (at least now safari saves my old windows) and opens them all on one desktop and taking sometimes nearly a minute to do so.
It has been two versions now since 5.1 (5.1.1, 5.1.2) and little has been done in regards to (in my opinion) this very serious issue. (there might have been slight decreases in ram usage but if so I dont really notice it)
What can I do (or what is being done) to limit the amount of Ram consumption Safari is allowed to take (adobe programs have this option)

I have the same issue. I see that no one has added to this since March. Does that mean it was address somewhere else? I understand the app is designed to use as much memory as it can grab to make it run better, but when it grabs so much that you start virtual memory thrashing, that's a problem. I have a Mac Mini with 2GB that was barely functional when Safari was running. I just upgraded to 8GB, and it's much better, but Safari still gladly takes half of that memory. I don't see how clearing the cache or history would have anything to do with RAM utilization. I agree this is a real problem.

After effects using all of my ram

Hello I'M Antoine I just replace my computers ram with sixteen gigs but i still get an error warning to increase ram.
I'm roto scoping a piece 3mins in length . also it constantly propagate a slow rate. Pleas Help.

Nobody can tell you anything without proper system info or other technical details about your project, what version of AE or for that matter the exact warning you get.
Mylenium

Why isn't my iMac using all of my RAM

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