[#112457] [Ruby master Feature#19443] Cache `Process.pid` — "byroot (Jean Boussier) via ruby-core" <ruby-core@...>
Issue #19443 has been reported by byroot (Jean Boussier).
16 messages
2023/02/16
[#112584] [Ruby master Feature#19465] [PATCH] reuse open(2) from rb_file_load_ok on POSIX-like system — "normalperson (Eric Wong) via ruby-core" <ruby-core@...>
Issue #19465 has been reported by normalperson (Eric Wong).
9 messages
2023/02/25
[#112595] [Ruby master Feature#19465] [PATCH] reuse open(2) from rb_file_load_ok on POSIX-like system
— "nobu (Nobuyoshi Nakada) via ruby-core" <ruby-core@...>
2023/02/25
SXNzdWUgIzE5NDY1IGhhcyBiZWVuIHVwZGF0ZWQgYnkgbm9idSAoTm9idXlvc2hpIE5ha2FkYSku
[#112613] Re: [Ruby master Feature#19465] [PATCH] reuse open(2) from rb_file_load_ok on POSIX-like system
— Eric Wong via ruby-core <ruby-core@...>
2023/02/26
"nobu (Nobuyoshi Nakada) via ruby-core" <[email protected]> wrote:
[#112615] Re: [Ruby master Feature#19465] [PATCH] reuse open(2) from rb_file_load_ok on POSIX-like system
— SHIBATA Hiroshi via ruby-core <ruby-core@...>
2023/02/27
MzUxMzZlMWU5YzIzMmFkN2EwMzQwN2I5OTJiMmU4NmI2ZGY0M2Y2MyBpcyBicm9rZW4gd2l0aCBg
[#112626] Re: [Ruby master Feature#19465] [PATCH] reuse open(2) from rb_file_load_ok on POSIX-like system
— Eric Wong via ruby-core <ruby-core@...>
2023/02/28
```
[ruby-core:112349] [Ruby master Bug#19424] Significant performance decreases in `OpenStruct#marshal_load` in Ruby 3.0 and 3.1
From:
"byroot (Jean Boussier) via ruby-core" <ruby-core@...>
Date:
2023-02-10 20:34:11 UTC
List:
ruby-core #112349
Issue #19424 has been updated by byroot (Jean Boussier).
Yes, I'm trying to pinpoint the change that made the eager definition of these methods, to try to figure out the rationale.
That said I'm doing so purely for curiosity, where I stand `OpenStruct` is fine quick mocks and such, but it can't possibly have decent performance. So between slow and slower...
----------------------------------------
Bug #19424: Significant performance decreases in `OpenStruct#marshal_load` in Ruby 3.0 and 3.1
https://bugs.ruby-lang.org/issues/19424#change-101793
* Author: sumitdey035 (Sumit Dey)
* Status: Open
* Priority: Normal
* ruby -v: 3.1.2
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN
----------------------------------------
I can see degradation in **Marshal load** only in Ruby 3.1.2 compared to 2.7.4
Processing time increased by 200%(2.4 sec to 4.3 sec)
Memory allocation increased by 600%(6500001 to 39000004)
```
require 'benchmark'
require 'ostruct'
N_OJ = 500_000
ex_HASH = { 'one' => 1, 'array' => [ true, false ] }
ex_JSON = '{ "one": 1, "array": [ true, false ] }'
ex_STRUCT = OpenStruct.new( one: 1, hash: ex_HASH, array: [ true, false ] )
ex_MARSHAL = "\x04\bU:\x0FOpenStruct{\b:\bonei\x06:\thash{\aI\"\bone\x06:\x06ETi\x06I\"\narray\x06;\bT[\aTF:\narray[\aTF"
"-----------------Ruby #{system("rbenv version")}----------------"
Benchmark.bm(20) do |x|
x.report('native marshal dump') do
N_OJ.times do
y = Marshal.dump(ex_STRUCT)
end
end
x.report('native marshal load') do
N_OJ.times do
y = Marshal.load(ex_MARSHAL)
end
end
start_memory = GC.stat[:total_allocated_objects]
N_OJ.times do
y = Marshal.dump(ex_STRUCT)
end
end_memory = GC.stat[:total_allocated_objects]
print "Marshal dump memory allocation- #{end_memory - start_memory}\n"
start_memory = GC.stat[:total_allocated_objects]
N_OJ.times do
y = Marshal.load(ex_MARSHAL)
end
end_memory = GC.stat[:total_allocated_objects]
print "Marshal load memory allocation- #{end_memory - start_memory}\n"
end```
**Benchmark and Memory consumption result**
---Files--------------------------------
Screenshot 2023-02-07 at 1.04.49 PM.png (184 KB)
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