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| author | Björn Gustavsson <[email protected]> | 2016-06-17 05:11:29 +0200 |
|---|---|---|
| committer | Björn Gustavsson <[email protected]> | 2016-06-17 10:28:13 +0200 |
| commit | 4443bc775442d568357f72d96e2fbdae2ea58c3d (patch) | |
| tree | 9571348e1f57e1b0cf667e39813fe3da1537ac68 /erts/emulator/beam/erl_unicode.h | |
| parent | 29864ba25d395aa57b88cd9d4357aa5a935b7535 (diff) | |
| download | otp-4443bc775442d568357f72d96e2fbdae2ea58c3d.tar.gz otp-4443bc775442d568357f72d96e2fbdae2ea58c3d.tar.bz2 otp-4443bc775442d568357f72d96e2fbdae2ea58c3d.zip | |
make_preload: Save some memory by making preloaded code 'const'
Mark the preloaded code 'const' to allow the compiler to put it into
the 'text' segment instead of into the 'data' segment. Since the
'text' segment is shared among all instances of the Erlang virtual
machine, this change could potentially reduce memory consumption
(slightly).
Before the change:
$ size bin/x86_64-unknown-linux-gnu/beam.smp
text data bss dec hex filename
2920246 352273 158472 3430991 345a4f bin/x86_64-unknown-linux-gnu/beam.smp
After the change:
$ size bin/x86_64-unknown-linux-gnu/beam.smp
text data bss dec hex filename
3081046 191473 158472 3430991 345a4f bin/x86_64-unknown-linux-gnu/beam.smp
Roughly speaking, this change cuts the size of the data segment in half.
Diffstat (limited to 'erts/emulator/beam/erl_unicode.h')
0 files changed, 0 insertions, 0 deletions