LZMA Question

Vytautas · 29th November 2003, 22:47

I have noticed that the lzma compression is quite slow when compressing even a fairly small installer. It nice and fast when uncompressing just the compression seems a little sluggish. Note sure if its a problem or just th design of the lzma algorithm.

Vytautas

n0On3 · 30th November 2003, 06:39

the algorithm is definitely slower than zip or bz2.

It could be even slower than rar, but I am not sure.

All this tested with 7-zip, which is also very fast uncompressing.

sdbarker · 30th November 2003, 07:06

Why is the speed while building the installer a problem? You only build it a few times before you ship it. As long as it's not slow to decompress, I don't see any trouble, really. Correct me if I've missed something, though.

Vytautas · 30th November 2003, 08:29

Its not really a problem its just that if the oinstaller takes a while to build you are not sure if its still working or if it has died on you, especially on slower machines.

Vytautas

fabiochelly · 30th November 2003, 08:47

LZMA can have big problems to compress if you don't have RAM enough.

kichik · 30th November 2003, 08:56

You can check the installer size as it builds for a minimal progress report.

29th November 2003, 22:47	#1
Vytautas Major Dude Join Date: May 2003 Location: Victoria, Australia Posts: 643	LZMA Question I have noticed that the lzma compression is quite slow when compressing even a fairly small installer. It nice and fast when uncompressing just the compression seems a little sluggish. Note sure if its a problem or just th design of the lzma algorithm. Vytautas My NSIS Mods and Files

30th November 2003, 08:29	#4
Vytautas Major Dude Join Date: May 2003 Location: Victoria, Australia Posts: 643	Its not really a problem its just that if the oinstaller takes a while to build you are not sure if its still working or if it has died on you, especially on slower machines. Vytautas My NSIS Mods and Files

30th November 2003, 08:47	#5
fabiochelly Senior Member Join Date: Nov 2003 Location: Vincennes, France Posts: 122	LZMA can have big problems to compress if you don't have RAM enough. Lorsqu'on s'occupe d'informatique il faut faire comme les canards... Paraître calme en surface et pédaler comme un forcené par en dessous

30th November 2003, 08:56	#6
kichik M.I.A. [NSIS Dev, Mod] Join Date: Oct 2001 Location: Israel Posts: 11,338	You can check the installer size as it builds for a minimal progress report. NSIS FAQ \| NSIS Home Page \| Donate $ "I hear and I forget. I see and I remember. I do and I understand." -- Confucius

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

30th November 2003, 06:39	#2
n0On3 Senior Member Join Date: Jan 2001 Location: Barcelona Posts: 314	the algorithm is definitely slower than zip or bz2. It could be even slower than rar, but I am not sure. All this tested with 7-zip, which is also very fast uncompressing.

30th November 2003, 07:06	#3
sdbarker Senior Member Join Date: Mar 2002 Posts: 133	Why is the speed while building the installer a problem? You only build it a few times before you ship it. As long as it's not slow to decompress, I don't see any trouble, really. Correct me if I've missed something, though.