HOW DO I UNDO OS X EL CAPITAN UPDATE

im feeling the same..what have i done!

im on an imac and same SLOW

Ptorks_

Sorry you are having trouble, but did you read anything we have written?

Have you begun checking?

Its like we wrote nothing.

G

ive looked into this, mine looks good compared to yours..dunno ill run another scan.

P

Ptorks-

Who and what are you replying to? Your what looks good compared to what? and Why?

.

Thanks again Grant, you're a very useful brain 🙂

this is mine...

I see two comments - one cant find it and one has printed a capture...

Activity monitor is a utility (an app). It lives in applications --> utilities --> activity monitor

Run it and pin it to your dock (ooops, i almost said task bar :_))

It has several tabs. They re VERY useful for figuring out what is going on.

There used ot be a great book called "OSX the missing manual" by David Pogue. I dont know if he has updated it to Yosemite and El Cap, btu its worth the $20 if he did

erusfarley

I cn barely read your report, but i can make two observations:

1. nothing appears to be using up much CPU, so its not a process hog

and

2. you have a bunch of stuff there that i cant recognize (or barely read).

#2 shoudl worry you. what are all those things? And are they causing trouble? Looks like a bunch of useless 3rd party add-on (crap) ware that may or may not be causing your trouble. get rid of anything you dont know for sure you need.

Step #1 - go down the list and ask if you know what they are.

Maybe others can be more helpful. did you notice that mine was recognizable stuff liek Word, Excel, Firefox, activity monitor - normal stuff.

Yours seem full of mysteries.

Grant

I was being thick… I replied that I couldn't find the capture, and then I found it… hence the reply with nothing…

My life is full of stuff I don't know why its there 😉

I'll have a shifty through and get rid of "stuff" and I I did notice how tidy yours looked 🙂

V impressive and v jealous

click on the memory tab - it shows how memory is being used. Mostly make sure its green or at worst orange.

If you really want to know about how Apple changed memory managemnt in 10.9, here goes:

All about memory management in OSX 10.9 Mavericks

Memory is managed differently, and more efficiently in 10.9. It is (mostly) unique in the industry, but may become trend.

Let’s start with the basics. Mechanical disk drives are very slow, with access speeds in the 10s of milliseconds and transfer rates in the 200-400 Mbps range real world. SSDs are much faster, on the order of a couple of ms access and typically 1200-3000 mbps transfer rates. RAM is much faster than either, in the nanosecond access and transfer speeds of ~8 Gbps effective (1 GHz x 8 bits/byte).

These are rough numbers for comparison purposes only.

So the goal is to keep as much in RAM as possible. But if you run out of RAM what do you do?

Traditionally you take the least used RAM and write it to a special part of the disk, in a way that you can access it most efficiently - minimizing the disk delays. This is called a swap file because you swap RAM in and out of it.

10.9 has a new trick: it compresses RAM using the main processors. Rather than swapping stuff to disk (disks are slow), it actually uses the processor to compress memory and make, for example, 1 GB of physical RAM hold as much as 1.5GB. Similar approaches are used to make MP3 files 10x smaller than the real thing - there is redundancy in data and you can take advantage of that. Apple is making the following calculation: the processors can compress way faster than the disk can swap. And its also predicting that the processors are often partly idle - waiting for swap files or disk access. So rather than swap files around, its compresses the files ***in RAM***.

Compression works,. Tests show that on average it is faster, and that 4GB (i have 4 GB RAM) acts like 5 1/2 - 6GB. Wow.

So, 10.9 will load up most of your RAM, knowing that it can compress some when it needs to. So don’t worry too much that it may look like all your RAM is taken - yea, it is, but its OK.

The measures to look at are:

1. amount compressed. Compression means it has run out of RAM and needs more. As long as compression is low this is fine. In fact this is how 10.9 uses RAM more efficiently than 10.6,7 or 8. Contrary to common wisdom, it requires LESS RAM than 10.8. The colored indicator tells you who this is going - green (good), yellow( iffy) and red (bad). Apple claims that Green means no compression needed; Yellow means compression is occurring and red means compression is exhausted and swapping has begun. I’ll hold my quibbles and defer to Apple.
2. amount swapped. Once it cannot compress any further, or can’t do so efficiently, jot begins old-fashioned swapping. This is a major slow-down and means you would benefit from more RAM. Tiny amounts are OK.
3. here's an article by Apple - but on the pre-10.9 memory management techniques....mostly still true, but read on.

http://support.apple.com/kb/HT1342?viewlocale=en_US

Bottom line - compression makes 10.9 use RAM more efficiently than previous OSX versions. It also makes the “ram used” indicator less meaningful, and mans you should monitor “compression” .

That said, RAM has always been one of the most cost effective upgrades possible. People spend too much on new machines and too little on more RAM.

Hope this helps,

Grant

I found the problem, your computer is running "LSD" :-)

just joking, but many of those agents/processes need investigation. You might google/bing them.

G

Memory showing green,… so will investigate and delete as needed… Thank you so much for your help Grant, much appreciated 🙂