Speed issue after adding RAM

Hello all,
I recently upgraded RAM on my IMac from 4gb to 16gb. I practically see no difference. My FCPX version is 10.0.9 Rendering takes forever. Am I missing something? Do I need to reconfigure iMac?
Any suggestion is highly appreciated

Am I missing something?
Yes. Adding RAM may not provide any noticeable change.
About OS X Memory Management and Usage
Using Activity Monitor to read System Memory & determine how much RAM is used
Understanding top output in the Terminal
The amount of available RAM for applications is the sum of Free RAM and Inactive RAM. This will change as applications are opened and closed or change from active to inactive status. The Swap figure represents an estimate of the total amount of swap space required for VM if used, but does not necessarily indicate the actual size of the existing swap file. If you are really in need of more RAM that would be indicated by how frequently the system uses VM. If you open the Terminal and run the top command at the prompt you will find information reported on Pageins () and Pageouts (). Pageouts () is the important figure. If the value in the parentheses is 0 (zero) then OS X is not making instantaneous use of VM which means you have adequate physical RAM for the system with the applications you have loaded. If the figure in parentheses is running positive and your hard drive is constantly being used (thrashing) then you need more physical RAM.
Adding RAM only makes it possible to run more programs concurrently. It doesn't speed up the computer nor make games run faster. What it can do is prevent the system from having to use disk-based VM when it runs out of RAM because you are trying to run too many applications concurrently or using applications that are extremely RAM dependent. It will improve the performance of applications that run mostly in RAM or when loading programs.

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Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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Message was edited by: LeSpensive

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[SOLVED] multiple issues after ram upgrade

hi everyone!
2 new ram modules arrived this morning, which i hastily installed in my machine. this is where the fun starts...
issue 1: no initramfs
so the boot process starts normally it seems. i get past grub and the initramfs starts to load. thats also where it stops dead.
a little google-fu reveals that i should try and chroot from a live iso and recreate mkinitcpio. seems easy enough... but:
issue 2: cannot boot live iso
multiple tries fail, when i finally stumble upon a post mentioning that the live iso cant handle large amounts of ram that well. adding
ram=2048M
gets me one step further. but still no dice. this time she just reboots after systemd does its thing.
what seems like hours later, i manage to get to the root prompt by also adding
nomodeset acpi=off
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next up: chrooting and rebuilding the initramfs. following the instructions in the beginners guide, i try and mount my root partition, which leads to...
issue 3: cannot mount btrfs root partition
mkdir works fine for the mount point. no problems there. the mount command itself seems to work somewhat too, telling me that sda1 is a btrfs filesystem on an ssd (which it is). then, however, a mysterious series of lines pop up telling me that it is "calling CRDA to update world regulatory domain"...
about a dozen lines of information appear and stop dead yet again.
utterly defeated, i decide its time to do some old fashioned hardware debugging. so i swap out the ram modules (2 sets of 2), popping them in multiple configs in the appropriate slots. memtest64 runs through fine in all configurations. nothing special to be found in the bios either. the 2 sets are from different manufacturers (a-data doesnt make the original set anymore - and havent produced a new set with the same specs), though i did pay attention to the timings, clockspeed and size (everything matches on paper). ending up at the last resort: putting everything back together again as it was originally, i reboot, praying for a familiar boot sequence and maybe even a gdm login prompt. but no such luck today. i am now stuck at
issue 4: putting humpty dumpty back together again
grub loads up normally. systemd fires up and im now faced with this:
INFO task mount:172 blocked for more than 120 seconds.
Not tainted 3.19.2-1-ARCH #1
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
INFO task btrfs-transacti:194 blocked for more than 120 seconds.
...repeats last INFO a few times...
so that brings us up to speed i guess. im out of ideas and the interwebs dont seem to have anything more to offer with my somewhat intricate set of problems. i know most of you are tinkerers like myself, and i hope theres someone out there that can help me out. to help you help me, here are a few specs and bits of info that might be of interest:
mobo: gigabyte 990fxa-ud5
cpu: amd fx 8350
ram (old): 2x4GB a-data ddr3 2000Mhz C9
ram (new): 2x4GB avexir ddr3 2000Mhz C9
bios settings: defaults all around, except iommu is activated (iommu=pt added to kernel line to let bios handle iommu)
gpu: nvidia gtx 970
partitioning (from what i can remember - i can post exact info, if its needed):
root: 60GB SSD (btrfs)
home: 200GB SSD (btrfs)
var: 20 GB on 1TB HDD (btrfs)
storage: rest of the 1TB HDD (btrfs - i think. this may be an ext4 partition, im not 100% certain)
any help or hints are greatly appreciated!
thanks a lot in advance!
regards,
m.
Last edited by miles969 (2015-04-03 17:10:30)

thanks ewaller, but i had tried that before...
turns out the arch iso was the culprit. i found an ubuntu-gnome live usb and popped it in. surprisingly, chrooting worked fine with that iso and i managed to boot successfully after running
/usr/bin/mkinitcpio -p linux
a few minor fixes (network device names had changed) and im up and running again... with all the ram, no less!
thanks a lot again!
regards,
m.

Does adding RAM help increase my laptop speed significantly?

I have a 667MHz Powerbook G4 with 512MB RAM. It's getting really slow lately, especially after installing MacOS 10.4 and Adobe CS2.
I tried not to open too many programs at a time, but it doesn't seem to help much.
Does anybody have the same problem with the newer Powerbook or Macbook Pro? I'm wondering if I need a new laptop, or just an extra RAM.

Hi shintaoetama,
first of all: WELCOME TO THE DISCUSSIONS!
Although adding RAM may increase speed a little running some routine system maintenance will certainly speed up things much more radically: MacOS X 10.3/10.4: System maintenance
If this answered your question please consider granting some stars: Why reward points?

Speed issue after adding RAM

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