I used to run Cygwin 64-bit on a Toshiba laptop, Portege R930. In particular, I ran
pdflatex on a report being composed. It took about a handful of seconds. That machine ran Windows 7. According to the vendor page, the processor is Intel's i5-3340M vPro, and it had 8GB RAM. Dual core, four hyperthreads.
I recently bought a Windows 10 laptop, TravelMate P2410-G2-M. The
system information says that it has i5-8250U, 8GB RAM, 4 Cores, 8 Logical Processors. The same Cygwin packages and versions (identical) were installed, and the same LaTeX document takes 2-3 times longer to compile. This, despite the ostensibly much more capable hardware.
Is there anything in particular about Windows 10 that I need to set in order to "unleash" the full potential of that processor?
Thanks to "kicken" for pointing out a possible cause as battery-saving power settings. Yes, plugging the laptop in lets it Turbo Boost up to 3.4 GHz, and the execution is way faster. However, I only have one power plan, and that is the
Unfortunately, within that plan, I haven't found the setting to allow for Turbo Boost when operating off the battery. In
Power Options -> Advanced settings, the only applicable setting seems to be
Processor power management. It has 3 parameters, each one allowing a value for
On battery and a value for
Plugged in. The names of the first and last parameters sound like they relate to processor speed, but the values are the same for
On battery and
Minimum processor state
- On battery: 0%
- Plugged in: 0%
- On battery: Passive
- Plugged in: Active
Maximum processor state
- On battery: 100%
- Plugged in: 100%
Power mode on battery
Double-clicking the battery icon on the lower right corner of the screen
pops up a
Power mode (on battery) panel, wherein the
slider is already set to high
performance. It isn't clear what the slider position corresponds to
Battery settings link opens up a
Battery panel, but none of
the controls look relevant except for those that activate battery saver
when the charge falls below 20%. My charge is well above that, so it
doesn't explain the curtailed speed when running off batteries.