On 23/11/2020 19:24, Hamish McIntyre-Bhatty via Cygwin-apps wrote:
> On 23/11/2020 19:16, ASSI wrote:
>> Hamish McIntyre-Bhatty via Cygwin-apps writes:
>>> That is strange if it's so much faster on your system.
>> I've checked again to be sure:
>>
>> Compile 41 minutes, install 7 (32bit) / 4 (64bit) minutes, packaging 5
>> minutes.
> Okay, wow that is a LOT quicker. I haven't timed mine precisely buts
> it's something like:
>
> Compile 2 hrs, install 40 minutes (64bit), 120 minutes (32bit),
> packaging probably like 5 minutes.
>
>>> Fortunately I have loads of memory so it's not too much of an issue
>>> for me. Most of the time on 32-bit Cygwin is spent stripping the
>>> executables, which is _way_ slower than on 64-bit Cygwin, by a factor
>>> of probably 3-4.
>> What's the disk based on?  I've recently switched to NVMe and while it's
>> not doing wonders compared to the SATA-SSD I've had before it has helped
>> to shave some time off the builds, generally in the order of 10…25% (for
>> gcc that means about half an hour so that's very welcome even if it
>> doesn't sound much).  Running a VM probably means you're running on a
>> filesystem image rather than a dedicated disk and that probably means an
>> extra slowdown anyway.  NVMe would enable you to make that overhead go
>> away, but it needs to be supported through the whole hypervisor / VM
>> stack to be effective.
> I have an NVME disk, but all my VMs (including this one) are on a SATA
> disk, and it's a Samsung QVO 1TB one that was cheaper but also slower
> (sustained write slows down to 80 MB/s eventually). Read is quick
> though. IIRC it's presented as SATA to the VM too.
>
> I'd better have a look at my configuration. Maybe do some disk and CPU
> benchmarks. This is in virtualbox so perhaps it's yet another problem
> with that, in the long list of problems I seem to have with virtualbox.
> The VM has 16GB of RAM dedicated to it, how does that compare to your
> system?
>
> Hamish

I think my fork speed is quite slow - when it prints out the "wxwidgets
has been installed, update LD_LIBRARY_PATH yada yada" messages during
install I can see it printing out the individual lines.

I don't know whether it was always that slow.

Hamish