Multi-Threading

[MaierMan]

HT/Multi Core systems get rather popular these days.

XNView could also profit from it by putting in some multi-threading.

First place to add it might be thumbnail processing.
Even if it's just a single core system there might be performance gains as the OS will schedule-away the thread that is IOWait and continue with the other one(s) that got data (from disk) already.

Other places might be resizing/effects/filters.



PS: I know getting multi-threading right is damn hard

V 1.90 <x>

[xnview]

HT/Multi Core systems get rather popular these days.

XNView could also profit from it by putting in some multi-threading.

First place to add it might be thumbnail processing.
Even if it's just a single core system there might be performance gains as the OS will schedule-away the thread that is IOWait and continue with the other one(s) that got data (from disk) already.

Other places might be resizing/effects/filters.



PS: I know getting multi-threading right is damn hard

But i use multi threading for many things (thumbnail creation, preview laoding, cache, ....)

[MaierMan]

But i use multi threading for many things (thumbnail creation, preview laoding, cache, ....)

taskman shows only one core is heavily in use...
Do you have true parallelism?

[DOS386]

HT/Multi Core systems get rather popular these days

But there are also many Pentium 2...3 systems 200...500 MHz around.

Please keep XNView working on such older systems.

[MaierMan]

HT/Multi Core systems get rather popular these days

But there are also many Pentium 2...3 systems 200...500 MHz around.

Please keep XNView working on such older systems.

Threads have been around for long, too.
The "overhead" it generates shouldn't be notable.
And threading might even help if you are running a "legacy" or newer single core PC.

Usually the drive read speed is the limiting factor anyway.

[Olivier_G]

Are HT/Multi-Core handled in Beta 5?
(I guess not... and move it to Postponed for a future version)