Re: LTO on Windows now working

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Hi

On Mon, 21 Sep 2020 at 08:22, Miklos Vajna <vmiklos@xxxxxxxxxxxxx> wrote:
Do you have any numbers on if this helps e.g. startup performance?



instdir/program contains
  merged 368M
  LTO    375M
 
size of mergedlo.dll (in bytes)
  merged 79 109 632
  LTO    82 043 904

loading fairly large calc file
time OOO_DISABLE_RECOVERY=1 OOO_EXIT_POST_STARTUP=1 instdir/program/soffice.exe ../500k_formul.ods (best of 3)
  merged 42.1s
  LTO    40.7s

So, some performance benefit, at the cost of a little more disk space.

I must admit, I'm a little surprised the code is larger, I would have thought LTO would have had more opportunity to merge code.

Regards, Noel.


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