InnoSetup module for Observer

Post by **HaRT** » Sun 28 Jun, 2026 10:24

Latest post of the previous page:

pepak wrote: Sun 28 Jun, 2026 08:59 Support for InnoSetup version up to 6.7.3

Thank you so much!

Unrelated to the particular version: is it possible to parallelize the “extract” or at least the “test” operations? I just tested a couple of large installers with innounp.x64.exe and was observing a single saturated CPU core for a few minutes. I suspect that with fast SSD disks CPU can easily be the bottleneck even when extracting (that is, both reading and writing).

Post by **pepak** » Sun 28 Jun, 2026 10:53

For some reason I can't quote on this post. I can quote on the others.

Edit: Now that I posted, the Quote button appeared...

HaRT wrote: Sun 28 Jun, 2026 10:24 Unrelated to the particular version: is it possible to parallelize the “extract” or at least the “test” operations? I just tested a couple of large installers with innounp.x64.exe and was observing a single saturated CPU core for a few minutes. I suspect that with fast SSD disks CPU can easily be the bottleneck even when extracting (that is, both reading and writing).

I don't think that's possible, for several reasons. One is that InnoSetup uses (or at least can use) solid archives which necessitate a sequential processing. The other is that I don't really have a chance to unpack everything - Observer must call the ExtractItem function for each file individually, and if it waits for the previous call to finish first, there isn't really much I can do about it.

Even if it were possible to paralelize, I wouldn't want to go that way - it could save some time, but at a much greater risk of something failing, and I just don't think it's worth it.