diff options
| author | Peter Zhu <[email protected]> | 2023-09-01 10:07:32 -0400 |
|---|---|---|
| committer | Peter Zhu <[email protected]> | 2023-09-04 08:50:27 -0400 |
| commit | 4cc56592932d36c202b2366ffe7ad71db2f5ea0b (patch) | |
| tree | ce40a99f55ad6c7634ea223670fdb81692f5a36f /test/coverage/test_coverage.rb | |
| parent | 2ac3e9abe98579261a21a2e33df16f1bff1ebc1d (diff) | |
Keep write-barrier status after splicing array
We don't need to remove the write-barrier protected status after
splicing an array. We can simply add it to the rememberset for marking
during the next GC.
The benchmark illustrates the performance impact on minor GC:
```
require "benchmark"
arys = 1_000_000.times.map do
ary = Array.new(50)
ary.insert(1, 3)
ary
end
4.times { GC.start }
puts(Benchmark.measure do
1000.times do
GC.start(full_mark: false)
end
end)
```
This branch:
```
1.309910 0.004342 1.314252 ( 1.314580)
```
Master branch:
```
54.376091 0.219037 54.595128 ( 54.742996)
```
Notes
Notes:
Merged: https://github.com/ruby/ruby/pull/8350
Diffstat (limited to 'test/coverage/test_coverage.rb')
0 files changed, 0 insertions, 0 deletions