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go / go / ae4aac00bba5d1d616408a1c07bd4ef5691e3a00
commitae4aac00bba5d1d616408a1c07bd4ef5691e3a00[log] [tgz]
authorHiroshi Ioka <hirochachacha@gmail.com>Tue Aug 02 14:41:53 2016 +0900
committerBrad Fitzpatrick <bradfitz@golang.org>Tue Sep 13 21:05:27 2016 +0000
treef5e2b6856fea65d469af67b5334a13bcce06c90f
parentee3f3a60070ee9edeb3f10fa2e4b90404068cb3a [diff]
encoding/asn1: reduce allocations in Marshal

Current code uses trees of bytes.Buffer as data representation.
Each bytes.Buffer takes 4k bytes at least, so it's waste of memory.
The change introduces trees of lazy-encoder as
alternative one which reduce allocations.

name       old time/op    new time/op    delta
Marshal-4    64.7µs ± 2%    42.0µs ± 1%  -35.07%   (p=0.000 n=9+10)

name       old alloc/op   new alloc/op   delta
Marshal-4    35.1kB ± 0%     7.6kB ± 0%  -78.27%  (p=0.000 n=10+10)

name       old allocs/op  new allocs/op  delta
Marshal-4       503 ± 0%       293 ± 0%  -41.75%  (p=0.000 n=10+10)

Change-Id: I32b96c20b8df00414b282d69743d71a598a11336
Reviewed-on: https://go-review.googlesource.com/27030
Reviewed-by: Adam Langley <agl@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
3 files changed
tree: f5e2b6856fea65d469af67b5334a13bcce06c90f
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
README.md

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