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Parsing a large file causes the char[] buffer behind it to be pushed onto LOH #5935

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davkean opened this issue Nov 20, 2018 · 2 comments
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Parsing a large file causes the char[] buffer behind it to be pushed onto LOH #5935

davkean opened this issue Nov 20, 2018 · 2 comments
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16.0

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@davkean
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davkean commented Nov 20, 2018

Trace: https://developercommunity.visualstudio.com/content/problem/245786/slow-f-editing-experience-up-to-a-minute-until-typ.html

GC Rollup By Generation

Gen Count MaxPause MaxPeak MB Max AllocMB/sec TotalPause TotalAlloc MB Alloc MB/MSec GC Survived MB/MSec GC MeanPause Induced
ALL 5196 1,652.0 744.6 8,424.125 40,245.7 29,166.1 0.7 1.026 7.7 18
0 3869 886.0 744.6 8,424.125 14,865.1 20,456.4 0.5 0.083 3.8 0
1 1286 53.5 744.6 3,284.108 17,473.7 8,524.0 0.6 0.746 13.6 0
2 41 1,652.0 744.6 502.652 7,906.8 185.7 0.3 7.355 192.8 18

In the above trace, 11 MB of data is being pushed on the LOH:

image
@davkean davkean mentioned this issue Nov 20, 2018
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@cartermp cartermp added this to the 16.0 milestone Nov 20, 2018
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Related #4881

@cartermp cartermp mentioned this issue Nov 20, 2018
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@TIHan TIHan mentioned this issue Dec 11, 2018
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Addressed by #6001

@cartermp cartermp mentioned this issue Jan 14, 2019
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