Jump to content
Steffen Nyeland

"Delphi High Performance" eBook free on Packt today.

Recommended Posts

Thanks for the tip!
Nice reading.

 

Note that the chapter about multi-thread friendly MM does not take into account the memory consumption of each, which is a pity.

In short, FastMM4 is very conservative (consume very low RAM), ScaleMM2 define a per-thread heap so will eat more memory, but it is worth saying that I have seen the Intel TBB MM eats hunderth time more memory than FastMM4 (with peaks at 200x RAM consumption).
So I never was able to use TBB on production. Almost the same for jemalloc. Under Linux, a modern glibc has also a great speed - but is a bit paranoid and sometimes SIGKILL the process on some memory error in end-user code.

You have some numbers in https://github.com/synopse/mORMot/blob/master/SynFPCCMemAligned.pas#L57

Edited by Arnaud Bouchez
  • Like 1

Share this post


Link to post

And perhaps don't switch the payment context to Europe (it's free anyway).

Share this post


Link to post
1 hour ago, Sherlock said:

And perhaps don't switch the payment context to Europe (it's free anyway).

No, it still works when switching to Europe.

Share this post


Link to post

😉 I am feeling a little stupid here. But how can I download this book? There is an option to *buy* the E-Book for 9,99 USD. Maybe this would be the way to go for a download?

1858228725_Screenshot2019-06-06at22_05_34.thumb.png.482934e88025522806c6bfb8ff424247.png

  • Confused 1

Share this post


Link to post
10 minutes ago, Daniel said:

😉 I am feeling a little stupid here. But how can I download this book? There is an option to *buy* the E-Book for 9,99 USD. Maybe this would be the way to go for a download?

1858228725_Screenshot2019-06-06at22_05_34.thumb.png.482934e88025522806c6bfb8ff424247.png

Do you have an account registered? That may be the key to getting the free download. I've found the site a little confusing, but once you have a title, you have it registered under your login, and can access it repeatedly.

Share this post


Link to post
Guest
1 minute ago, Bill Meyer said:

That may be the key to getting the free download

No, seems there is no more download for free books. The old ones can still be downloaded

Share this post


Link to post

I actually can access this book - but only online in their reader. This might be the "limitation" for this free offer.

Share this post


Link to post

Maybe. But I thought I remembered having been able to "buy" a free special at the $0.00 price in the past.

 

Share this post


Link to post
Guest
12 minutes ago, Bill Meyer said:

Maybe. But I thought I remembered having been able to "buy" a free special at the $0.00 price in the past.

 

Yes, thats why I said

16 minutes ago, Schokohase said:

No, seems there is no more download for free books. The old ones can still be downloaded

The old ones are the old free books

Share this post


Link to post
Guest
7 minutes ago, Jim McKeeth said:

Open it in the reader and then there is a download button.

Well ... where?

 

Delphi_High_Performance.png

Share this post


Link to post

Ok, turns out I own it too, and the changed it. Used to give you free download.

Edited by Jim McKeeth

Share this post


Link to post
Guest

@Jim McKeeth Do you pay anything to packtpub - subscription or anything else?

 

That could be the reason.

Edited by Guest

Share this post


Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×