ruby.git/include/ruby/internal/core/rarray.h, branch v3_4_9

Mark strings returned by Symbol#to_s as chilled (#12065)

2024-11-13T14:20:00+00:00

* Use FL_USER0 for ELTS_SHARED

This makes space in RString for two bits for chilled strings.

* Mark strings returned by `Symbol#to_s` as chilled

[Feature #20350]

`STR_CHILLED` now spans on two user flags. If one bit is set it
marks a chilled string literal, if it's the other it marks a
`Symbol#to_s` chilled string.

Since it's not possible, and doesn't make much sense to include
debug info when `--debug-frozen-string-literal` is set, we can't
include allocation source, but we can safely include the symbol
name in the warning message, making it much easier to find the source
of the issue.

Co-Authored-By: Étienne Barrié 

---------

Co-authored-by: Étienne Barrié 
Co-authored-by: Jean Boussier

Remove RARRAY_CONST_PTR_TRANSIENT

2023-07-13T18:48:14+00:00

RARRAY_CONST_PTR now does the same things as RARRAY_CONST_PTR_TRANSIENT.

Remove RARRAY_PTR_USE_TRANSIENT

2023-07-13T18:48:14+00:00

RARRAY_PTR_USE now does the same things as RARRAY_PTR_USE_TRANSIENT.

Remove rb_array_ptr_use_{start,end}

2023-07-13T18:48:14+00:00

[Feature #19730] Remove transient heap

2023-07-13T13:27:33+00:00

[Feature #19579] Remove !USE_RVARGC code (#7655)

2023-04-04T21:30:06+00:00

Remove !USE_RVARGC code

[Feature #19579]

The Variable Width Allocation feature was turned on by default in Ruby
3.2. Since then, we haven't received bug reports or backports to the
non-Variable Width Allocation code paths, so we assume that nobody is
using it. We also don't plan on maintaining the non-Variable Width
Allocation code, so we are going to remove it.

Merge internal/rgengc.h and internal/gc.h

2023-02-28T17:09:00+00:00

Remove unused internal macros in rarray.h

2022-07-21T13:02:45+00:00

Increase SIZE_POOL_COUNT to 5

2022-05-09T12:45:24+00:00

Having more size pools will allow us to allocate larger objects
through Variable Width Allocation.

I have attached some benchmark results below.

Discourse:
  On Discourse, we don't see much change in response times. We do see
  a small reduction in RSS.

  Branch RSS: 377.8 MB
  Master RSS: 396.3 MB

railsbench:
  On railsbench, we don't see a big change in RPS or p99 performance.
  We see a small increase in RSS.

  Branch RPS: 815.38
  Master RPS: 811.73

  Branch p99: 1.69 ms
  Master p99: 1.68 ms

  Branch RSS: 90.6 MB
  Master RSS: 89.4 MB

liquid:
  We don't see a significant change in liquid performance.

  Branch parse & render: 29.041 I/s
  Master parse & render: 29.211 I/s

[Feature #18634] Implement Arrays on Variable Width Allocation

2022-03-22T13:42:39+00:00

This commit implements arrays on Variable Width Allocation. This allows
longer arrays to be embedded (i.e. contents directly follow the object
header) which improves performance through better cache locality.