[GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

Utini · 2016-02-09 10:09:28

Heyho, my laptop has 8 CPU's but when extracting smth on GNOME with File-Roller, only 1 CPU is being used?

Is there any way to enable the usage of multithread with file-roller?

x33a · 2016-02-09 13:40:24

But is your disk being used fully? If yes, then using multiple cores won't help. Use something like iotop to check your disk speed when using file-roller.

Utini · 2016-02-09 17:03:42

x33a wrote:

But is your disk being used fully? If yes, then using multiple cores won't help. Use something like iotop to check your disk speed when using file-roller.

My SSD has about 500MB/s read and write so there is enough room for more CPU usage

I checked, my SSD isn't fully used/stressed when unpacking.

alphaniner · 2016-02-09 17:17:30

Can you confirm that extracting the same archives on the command line utilizes multithreading? For example, xz doesn't support threaded decompression. I don't know about other archive types or tools.

In any case, this is probably an upstream issue.

Last edited by alphaniner (2016-02-09 17:19:14)

Utini · 2016-02-09 20:23:55

alphaniner wrote:

Can you confirm that extracting the same archives on the command line utilizes multithreading? For example, xz doesn't support threaded decompression. I don't know about other archive types or tools.
In any case, this is probably an upstream issue.

Oh boy why is this so complicated I didnt even know that apps without proper multi-thread support still exist.

Any suggestions on how to "confirm" this in the best way? E.g. which decomoressor/command options should I use for comparison?

alphaniner · 2016-02-09 20:58:01

The quick'n'dirty test would be to decompress various archive types from the command line with their default decompressor. WRT file-roller, you may need to dig into the documentation and/or sources to see how it actually handles various archive types. Googling "file roller multithread", "archive multithread support", or such might be prudent.

Utini · 2016-02-10 18:41:56

Well I just did a comparison between Windows and Arch:

Even though windows uses more CPU's it is not faster (actually even slower by 10seconds on a 17GB .rar file).

So it seems like my SSD is really at its limits when extracting (reading/writing) to/on the same SSD and it's just multiple CPU's at average speed vs one CPU at maximum speed.

drdru · 2023-04-20 15:58:46

alphaniner wrote:

Can you confirm that extracting the same archives on the command line utilizes multithreading? For example, xz doesn't support threaded decompression. I don't know about other archive types or tools.
In any case, this is probably an upstream issue.

What about:

# if user wants to use more than 4 cpu threads/cores just increase the number
# compress "folder" into archive.tar.xz
XZ_DEFAULTS="--threads=4"; export XZ_DEFAULTS; tar fcvJ /path/to/backup/archive.tar.xz /compress/this/folder

# de compress archive.tar.xz into current directory
XZ_DEFAULTS="--threads=4"; export XZ_DEFAULTS; tar fxvJ /path/to/backup/archive.tar.xz

V1del · 2023-04-20 16:52:20

Note that you are responding to a 7 year old thread. Very recently xz has gotten support for multithreaded decompression indeed but definitely not at the time that this thread was made.

Please don^t necrobump: https://wiki.archlinux.org/title/Genera … bumping%22

Closing this old thread.

Arch Linux

#1 2016-02-09 10:09:28

[GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#2 2016-02-09 13:40:24

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#3 2016-02-09 17:03:42

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#4 2016-02-09 17:17:30

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#5 2016-02-09 20:23:55

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#6 2016-02-09 20:58:01

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#7 2016-02-10 18:41:56

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#8 2023-04-20 15:58:46

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

#9 2023-04-20 16:52:20

Re: [GNOME] File-Roller - Enable multithread (more than 1 CPU) ?

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