Shirt Pocket Discussions  
    Home netTunes launchTunes SuperDuper! Buy Now Support Discussions About Shirt Pocket    

Go Back   Shirt Pocket Discussions > SuperDuper! > General

 
 
Thread Tools Rate Thread Display Modes
Prev Previous Post   Next Post Next
  #6  
Old 02-06-2019, 09:10 AM
dnanian's Avatar
dnanian dnanian is offline
Administrator
 
Join Date: Apr 2001
Location: Weston, MA
Posts: 14,522
Send a message via AIM to dnanian
This is going to be a disappointing reply, Dennis, but - the fact is, Smart Updates involve reading a zillion teeny bits of information (metadata), comparing them, walking the directory trees, etc.

So there's a lot of "back and forth" between a lot of layers of the OS...and speeding up the drive only matters to a certain extent (when things are generally not being copied).

Since a lot of that information is directory information, and the directory is aggressively cached, speeding up the drive won't make a huge difference.

Similarly, copying, say, a giant file is faster than copying a million tiny files that add up to the same size...because the "bookkeeping" time ends up being a larger percentage of time (you know, a million calls to the OS vs. a smaller amount).

With regard to creating the snapshot, well, we ask the system to do it and it takes what it takes. You'll note that we're not CPU bound - we're mostly waiting for the OS to do things...
__________________
--Dave Nanian
Reply With Quote
 

Tags
apfs, hfs+, ssd


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Choosing size of backup partition/drive in APFS world surajrai General 1 11-12-2017 08:49 AM
Startup Disc and Hard Drive Partitioning Questions Paint Guy General 15 10-27-2010 02:25 PM
Server drive won't mount after backup rhennosy General 1 11-09-2007 03:49 PM
Backup failure on a certain file bmat General 3 09-25-2007 09:06 AM
(Zero-length) File caused SuperDuper to abort backup alancfrancis General 7 08-31-2005 10:42 AM


All times are GMT -4. The time now is 04:55 AM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.