2015 MBP Time machine, 24hrs, 10GB?

acorntoy

macrumors 65816
Original poster
May 25, 2010
1,407
1,193
So after running time machine for about 24 hours only 10GB has been backed up, out of 240 :eek:

I'm using a USB 3.0 Device why is the backup taking so freaking long?
 

Howard2k

macrumors 68030
Mar 10, 2016
2,738
1,984
Are you using a USB 2 port?

Maybe some details might help. Which devices? What MacBook etc.
 

acorntoy

macrumors 65816
Original poster
May 25, 2010
1,407
1,193
Is your drive bad? Maybe try using a different drive. Should never take that long.
I thought that too, but when wiped and just transferring files over without using time machine its quoting 30GB in about an hour. Seems to be related to time machine.
 

BuCkDoG

macrumors 6502a
Jun 13, 2013
535
178
I thought that too, but when wiped and just transferring files over without using time machine its quoting 30GB in about an hour. Seems to be related to time machine.
Weird then that's interesting. Maybe contact Apple Support about it and see what they say.
 

BigMcGuire

Contributor
Jan 10, 2012
4,711
5,739
California
I've had some interesting experiences with Time Machine. While you're using the machine, it tends to take a back seat. The VERY first backup takes forEVER. (The Sandlot: FOR... EV... ERRR). But once you get past that initial backup, then you're good and they're usually fast. Any disk io will be preferred to time machine. It goes a lot faster when you're not using it too.

I bought a 4TB disk from Amazon that was defective from the moment I got it. Should have returned it but I stupidly decided to take it apart to see if I could put it in a different enclosure - the microUSB was the board, but the drive transferred slower than anything I've ever seen. Even though I bought my wife the same drive, her drive was perfect, but mine was slow as heck.

I have a 2TB WD External that overheated in a zipped container - ever since then, it transfers at USB 2 speeds and refuses to go faster. :/

My MacBook will backup to Time Machine when it's in a locked state - so I suggest setting that overnight, and let it do its thing.

Highly recommend Carbon Copy Cloner.
 

afir93

macrumors 6502a
Jan 5, 2018
728
896
Another thing you might try before taking on more extreme measures is running the Terminal command that disables throttling for Time Machine and speeds it up:

sudo sysctl debug.lowpri_throttle_enabled=0

Usually, Time Machine is deliberately slowed down to an extend where it doesn't affect the performance of your machine, but if it's being too slow, then it can be desirable to disable that behavior. This will make Time Machine more of a performance-hug, so it may slow down your machine slightly for the duration of the backup, but if there's any issue with the throttling process or if there are any other processes that hug your CPU, this should solve it.

https://www.imore.com/how-speed-your-time-machine-backups
 

pshufd

macrumors 68000
Oct 24, 2013
1,543
976
New Hampshire
Is your Time Machine disk USB 2.0 or 3.0?

If you have a large number of small files, then it takes a lot longer as it has to do more directory work. 10 GB shouldn't take that long though.
 

Fishrrman

macrumors P6
Feb 20, 2009
17,474
5,676
OP --

Try downloading CCC (it's free to download and use for 30 days).
Then, do a CCC cloned backup to an external drive.

Just try it.
Then come back here and give us your impressions.